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Part _ 15694 Rev. 1 Date 11/08/93

INSTRUCTION MANUAL For ELECTRONIC PHASE SHIFTER MODEL EPS-1000

It is essential that this instruction book be read thoroughly before putting the equipment in service.

REVISION HISTORY

Revision ECN # Date 0 09/30/93 1 25593 11/08/93 IMPORTANT The information and data contained within this instruction manual are proprietary with AVO MULTI-AMP Corporation. The equipment described herein may be protected by one or more U.S. letters patent. AVO MULTI-AMP specifically reserves to itself all rights to such proprietary information as well as all rights under any such patent, none of which is waived by the submission of this instruction manual to anyone. The recipient, if a Government agency, acknowledges that this instruction book and the equipment described were procured with "Limited Rights" to technical data as described in ASPR 9-203 (b). Copyright AVO MULTI-AMP Corporation, 1993

Table of Contents Safety Precautions............................................iii

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General Description........................................... 1 Front-Panel Display........................................... 1 Front-Panel Controls.......................................... 2 Front-Panel Input/Output...................................... 3 Main Menu Screen.............................................. 4 Options Screen................................................ 5 Setup Screen.................................................. 8 Run Screen.................................................... 8 Mode.......................................................... 9 Auto Test..................................................... 9 Save Screen................................................... 10 Recall Screen................................................. 11 Phasors....................................................... 11 Line-Neutral.................................................. 13 Line-Line..................................................... 20 Data Content.................................................. 22 Technical Translations........................................ 23 Service Data.................................................. 27

Servicing........................................... 27 Service and Repair Order Instructions............... 27 Preparation for Reshipment.......................... 28

Warranty Statement............................................ 29

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Test Procedures ............................................ 30

CEB...................................................... 31 CEY51.................................................... 35 CRN-1.................................................... 39 CVE ..................................................... 43 GCX51A and GCX51B........................................ 47 GCY51.................................................... 51 IJS...................................................... 54 IRD...................................................... 57 IRV...................................................... 57 JBC and JBCV............................................. 61 JBCG51E.................................................. 65 KD-4, KD-10, KD-11 and KD-41............................. 69 KLF...................................................... 75

Safety Precautions WARNING: VOLTAGES GENERATED BY THIS INSTRUMENT CAN BE HAZARDOUS This instrument has been designed for operator safety; however, no design can completely protect against incorrect use. Electrical circuits are dangerous and can be lethal when lack of caution and poor safety practices are used. There are several standard safety precautions that should be taken by the operator. Where applicable, IEC safety markings have been placed on the instrument to notify the operator to refer to the instruction manual for instructions on correct use or safety related topics. Refer to the following table of symbols and definitions.

ymbol S

Description

Direct Current

Alternating Current

Both direct and alternating current

Earth (ground) Terminal

Protective Conductor Terminal

Frame or Chassis Terminal

On (Supply)

Off (Supply)

Caution, risk of electric shock

Caution (refer to accompanying documents)

UNDER NO CIRCUMSTANCES SHOULD THE OPERATOR OR TECHNICIAN ATTEMPT TO OPEN OR SERVICE THIS INSTRUMENT WHILE CONNECTED TO A POWER SOURCE. LETHAL VOLTAGES ARE PRESENT AND MAY CAUSE SERIOUS INJURY OR DEATH!

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General Description The EPS-1000 is a portable, self-contained, third generation test set providing a single-phase, phase-to-phase, or three-phase voltage source for testing complex protective relays. The EPS-1000 graphically displays all voltage and phase angle settings, providing the operator graphic information, to know, the voltage amplitudes and phase angles applied to the relay. The graphic screen displays these voltage and phase angle settings with a full range of capabilities for modifying specific testing applications. The EPS-1000 is a compatible test set for testing three phase protective relays with any of the following AVO Multi-Amp test equipment; SR-90, -76, or -51. The EPS-1000 utilizes other OEM test equipment, provided the input synchronization to the EPS-1000 does not exceeded 30VRMS or 5A. The EPS-1000 also has the capabilities to produce a single-phase, open-delta, T-connect, delta, or wye voltage source. These configurations display graphically on the EPS-1000 front panel display. Voltage amplitudes and phase angles are controlled using a numerical keypad or a rotary knob. Additional functions include; rotating one-phase, two-phases, or three-phases at a time. Front-Panel Display The front-panel display consists of an LCD panel that has a resolution of 640 by 200 pixels. The front-panel display provides graphic and numeric display to the operator of all the test specifications and the EPS-1000 operating mode.

Operating modes are: Option Screen, Setup Screen, Save Screen, Recall Screen, Run Screen, Output, Normal, Fault, Post-Fault, Auto Test, Rotate, and About.

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Front-Panel Controls The front-panel controls consist of: MAIN MENU key Displays the Main Menu on power-up. Depressing this key from any other screen will start the Main Menu screen. RESET key Prompts the EPS-1000 to be RESET to the default mode and upon completion of the RESET function, the MAIN MENU screen is active. Fourteen soft keys These soft keys surround the graphic display on the EPS-1000. Their position will never change, only their field description will change, based upon the screen displayed. UP-arrow Moves the graphic screen cursor UP, from one field to another or in the SAVE screen will scroll through the alphanumeric designators in ascending order. DOWN-arrow Moves the graphic screen cursor DOWN, from one field to another or in the SAVE screen will scroll through the alphanumeric designators in descending order. LEFT-arrow Moves the graphic screen cursor LEFT, from one field to another or in the OPTION screen will allow changing of the field options. RIGHT-arrow Moves the graphic screen cursor RIGHT, from one field to another or in the OPTION screen will allow changing of the field options. ROTARY Knob The rotary knob rotates either clockwise or counterclockwise to effect the cursor field. The amplitude changes, on rotation of the knob, depending on the cursor's position. Positioning the cursor on the first digit of the field, effects the hundred's column, resulting in a fast rate of change in the voltage or phase angle setting. Positioning the cursor in the hundred's column effects its own column by rapidly increasing or decreasing the tens, ones, and tenth's columns. Positioning the cursor on the second digit, the ten's column, results in a mid-range rate of change. The cursor in the ten's column effects its own column by rapidly increasing or

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decreasing the ones and tenth's columns. Positioning the cursor on the third digit, the one's column, results in a slow rate of change. The cursor in the one's column effects its own column by rapidly increasing or decreasing the tenth's column. The cursor in the tenth's column effects its own column and the one's column. NUMERICAL Keys Whenever the cursor is over a numeric field, the soft keys at the bottom of the screen can be set to any of the 0-9 digits. By pressing any of these keys, the position the cursor holds at the time the soft key was pressed will advance to that digit. The cursor moves to the right by one position. Setting the last digit of a field in this manner will cause the cursor to advance to the next field on the screen. This position will either be the position immediately to the right or the next field down. The minimum and maximum for a field are checked each time the digit enters the field. If a digit enters a field and the digit will cause the field to exceed, even temporarily, its maximum value, then a warning beep is sounded. If the field is within range, it is set to this value. If the field still exceeds its maximum value, the field remains as it was, before the error occurred. This feature ensures that no number that appears on the screen ever exceeds the maximum. This is important because whenever the output is ON, the Run Screen voltages change instantaneously.

To give an example of this feature, suppose that the range is set to 120 volts, and the voltage is set to 80 volts. The user needs to enter 110 volts. The cursor positioned to the left of the 8, and a 1 enters the field. When the 1 enters the field, the field would read 180 volts, which exceeds the maximum. A beep is sounded. The voltage changes to 100 and the cursor advances to the second digit of the field. At this point, the user may simply continue by entering a 1, and the field will read 110 volts.

Suppose that the user accidentally enters an 8 for the first digit of the field. The voltage now would read 880. EPS-1000 firmware will first change this internally to 800. Since this still exceeds the maximum, a warning beep is sounded, the EPS-1000 rejects the 8, the cursor doesn't move, and remains at 80 volts. Front-Panel Input/Output The front panel input/output terminals are: Three voltage sources Provides an ac voltage source for testing; single-phase, 3-phase wye configuration, 3-phase T-connect configuration, 3-phase open-delta configuration, or 3-phase delta configuration .

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Phase Synchronization The phase reference and the output voltage synchronize with an Internal or an External reference source. Timer Start Contacts The timer relay contacts are selectable for normally open or normally closed contacts. These contacts are initiated during an automatic test in the Fault mode. Main Menu Screen Main Menu screen displays on initial power-up of the EPS-1000, as seen in Figure 1. Pressing the Main Menu key, from any of the other screens, will prompt the Main Menu screen to display. From the Main Menu screen, the EPS-1000 allows the operator to choose various operating modes with a single keystroke. The keys labeled with screen names will take the EPS-1000 to the selected screen. Soft Key Description Option Screen the Option Screen selects the configuration

options. Setup Screen the Setup Screen sets the voltages, phases, and

delays for the three modes. Voltages are OFF, on this screen.

Save Screen the Save Screen stores all of the current configuration options and the settings for the voltages, phases, and delays, along with an alphanumeric description.

Recall Screen the Recall Screen recalls all test setups previously stored.

Run Screen the Run Screen sets the voltages, phases, and delays for a single mode.

Output the output key will turn the voltages on, if the legend says "output on" and will turn the voltages off if is says "output off"

Normal sets the EPS-1000 in the Normal mode. Fault sets the EPS-1000 in the Fault mode. Post-Fault sets the EPS-1000 in the Post-Fault mode. Auto Test initiate an automatic test, based upon the testing

parameters established in the Setup screen. Can only operate when the output is ON.

Rotate will rotate the phase angle relationship for Channel A, Channel B, and Channel C.

About displays the copyrights notice and the version number of the firmware.

Alarm Screen displays a thermal or overload condition.

Options Screen All voltages are OFF, when the EPS-1000 Options Screen is displayed. This screen allows the user to choose the following options using the fourteen soft key pads, up-arrow, down-arrow, left-arrow, right-arrow, or rotary knob.

Voltage Reference The voltage reference settings are either Line-Neutral or Line-Line. The Line-Neutral mode is a 3-phase wye configuration. The 3-phase wye configuration allows single phase, dual phase (sync-check), 3-phase open-delta, and 3-phase T-connect testing. The Line-Line mode is a 3-phase delta configuration. In either setting the reference is established in the default mode along the x-axis. This point along the x-axis establishes Phase Synchronization for testing complex protective relays. To avoid any significant errors in testing, a brief synopsis of wye and delta configurations is presented using phasor rotation, in the section Phasors. Frequency The frequency may be set to synchronize with either the Line frequency, 50 Hz, or 60 Hz. Phase Synchronization The EPS-1000 synchronizes with an Internal reference or with an External reference source. When choosing external sync. the Frequency option must set to Line. If the option is set to External and a current or voltage signal is not present on the front-panel synchronization terminals, the output voltage synchronizes to the line. Whenever an External signal exists, the output voltages synchronize with the signal. If the Phase Synchronization is set to Internal, the phase reference synchronizes to the selected Frequency option.

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Ganging Select Ganging allows multiple channels simultaneous adjustment by turning the rotary knob, on the front panel. Ganging does not effect the soft numeric keys. Ganging, Enabled, allows the EPS-1000 options to gang channels A-B; B-C; C-A; or A-B-C. Rotating the rotary knob will increase or decrease the voltage(s) and/or the phase angle(s) for the selected ganged channels. Only the ganged channel, in the wye configuration, affect the operation. In the delta configuration the other phase channel(s) adjust in the same direction, with varying amplitudes and phase angles, from the initial setting. In a wye configuration, If channel A-B-C is selected for ganging and channel A is adjusted from 0° to 5°, channel B will be moved from an initial setting of 120° to 125°, and channel C will be moved from an initial setting of 240° to 245°. If the voltage amplitude is adjusted 5V, with channel A-B-C having an initial setting of 120V, both channel A-B-C would increase from 120V to 125V. If the voltage adjusted on at least one of the ganged channels reaches either the maximum voltage or the minimum voltage, none of the ganged channels will be adjustable beyond that point. If Ganging Select is set for A-B-C and the voltage channel A is being adjusted; channel A is set to 230 volts, channel B to 120 volts and channel C to 200 volts. As the rotary knob is rotated clockwise, channel A will reach 240 volts, channel B will reach 130 volts, and channel C will reach 210 volts. At this point, further clockwise rotation of the rotary knob will not cause B or C to be changed since A is at its maximum. Conversely if channel A is set to 30 volts, channel B to 120 volts and channel C to 200 volts. As the rotary knob is rotated counterclockwise, channel A will reach 0 volts, channel B will reach 90 volts, and channel C will reach 170 volts. At this point, further counterclockwise rotation of the rotary knob will not cause B or C to be changed, since A is at its minimum. Channel A, B, C Enable/Disable Each channel may be individually Enabled or Disabled. If the selected channel is to be Disabled, the channel Disabled is not shown on the Setup or Run screens. If the voltage output is ON, no output voltage is applied to a Disabled channel, this can be easily seen by the red LED above the Disabled voltage not illuminated. The settings for a Disabled channel are retained in memory and if a voltage channel is Disabled and then Enabled, the settings will be the same as they were before the channel was Disabled. Range Select

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The EPS-1000 voltage amplifiers have two ranges that are selected electronically from the Options Screen. The lower range will allow voltages from 0.0 to 120.0 volts and the higher range will allow voltages from 0.0 to 240.0 volts. If the EPS-1000 is changed from the high range to the low range and one or more of the voltage settings on the screen is set to a voltage greater than the maximum for the low range. The WARNING Screen appears, stating "ONE OR MORE VOLTAGES OUT OF RANGE. Do you wish to set them to the maximum voltage for this range? Yes or No". If the Yes key is depressed, the voltages beyond the maximum level for the low range will be reset to 120V. If the No key is depressed, the voltages will not be reset. If the No key is depressed and the next step is to turn the voltage channels ON, the same WARNING Screen, "ONE OR MORE VOLTAGES OUT OF RANGE. Do you wish to set them to the maximum voltage for this range? Yes or No", will be displayed. If the Yes key is depressed, the voltages beyond the maximum level for the low range will be reset to 120V and the EPS-1000 will allow testing to continue. If the No key is depressed, the voltages will not be reset and each time the OUTPUT key is depressed, the WARNING Screen will be displayed, until a Yes answer is received. Graphics Options are given to label the three phasors; A-B-C, C-B-A, or R-S-T. Language This option is used to select the language that is displayed on the screen. English, French, German, Spanish, or Portuguese may be selected. Refer to the section, Technical Translations for interpretation. Key Entry Inhibit This option is used to turn the numerical keys OFF or leave ON, whenever the voltage is ON. Timer Relay Allows an option for the operator to choose whether the timer relay contacts are to initiate on normally open contacts or normally closed contacts. Phase Reference This option controls whether the 0° reference is drawn at the x- or y-axis. A small circle marks 0° on the phasor diagram. Screen Contrast If the cursor is positioned on this field, the contrast may be adjusted by rotating the knob. The selected contrast is retained even if the power is turned OFF. If the contrast is left with the screen unreadable and the power is turned OFF. The Screen Contrast can be reset to a reasonable value by pressing the Main Menu key three times. This will cause the factory default

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settings to be set, including screen contrast. Then press the UP-arrow key once and rotate the ROTARY knob to increase the Screen Contrast.

Setup Screen

The Setup screen is to allow changes from the default specifications for the Normal, Fault, and Post-Fault modes. The voltage channels on the EPS-1000 are off, while this screen is active. The test specifications that are shown on the setup screen are selected from the Options screen. See Options Screen, for more detail. The Voltage, Phase and Delay are modified in this screen. The Voltage is adjustable from 0 to 120V, the Phase from 0o - 360o, and the Delay from 0 to 999 cycles. The test specifications may be changed by the operator of the EPS-1000 by pressing the up-arrow, down-arrow, left-arrow, and right-arrow until the cursor is at the digit in the field that is to be changed. The rotary knob may also be turned clockwise or counterclockwise to effect the field where the cursor is positioned. Pressing a keys to the right of the screen, the user may advance to the Option Screen, Run Screen, Save Screen, or Recall Screen. Run Screen

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The Run screen displays the voltages and phases for the currently selected mode. The four soft keys to the right of the screen are labeled Mode, Output On, Option Screen, and Auto Test.

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Pressing the soft key labeled Mode, will cycle the EPS-1000 to the next test mode of operation, from Normal, to Fault, to Post-Fault, and back to Normal. This feature allows the operator to verify the test conditions, which will be subjected to the protective relay, one Mode at a time. This function is similar to using the Setup Screen, only the Run Screen is much larger and the voltage outputs can be turned on to simulate the Normal, Fault, and Post-Fault parameters. Mode The EPS-1000 has three modes of operation: Normal, Fault, and Post-Fault. These modes can be controlled either manually in the RUN Screen or automatically in the AUTO-TEST Screen. The testing parameters are established in the SETUP Screen. Normal the Normal voltages and phase angles are applied

to the voltage outputs. Fault the Fault voltages and phase angles are

applied to the voltage outputs. Post-Fault the Post-Fault voltages and phase angles are

applied to the voltage outputs. Auto Test The Auto Test places the EPS-1000 in the Normal mode. If the EPS-1000 output voltage is ON and the external synchronization has been chosen on the Option Screen, the instrument waits until a voltage or current is sensed on the front-panel synchronization terminals, and the output signal is synchronized to it. If synchronization has already occurred when the automatic test command is issued, or if internal synchronization is selected, this wait is not executed. The EPS-1000 then begins counting cycles. When the Normal delay expires, and the Fault mode is initiated and the timer relay contacts are opened or closed depending on the setting on the options screen. When the Fault mode delay expires, the Post-Fault mode is initiated. If the Post-Fault delay expires, the Normal mode is initiated, the relay is opened or closed, and the test ends. An automatic test may be canceled by pressing the cancel key.

Save Screen

The Save Screen can be used to save all of your protective relay test settings from the Options Screen and the Setup Screen. A total of 60 test settings may be saved, with each being assigned a test number and description. Test numbers 2 thru 14 are factory programmed for common relays. The alphanumeric description is entered using the rotary knob. The following characters can be set using the rotary knob: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz [space] -_/.,!+#& 0123456789 - Provided by the numeric soft keys. To properly set the alphanumeric description in the Save Screen; move the cursor down using the down arrow key to the first position after #1, rotate the rotary knob to find the desired character, by moving the right arrow key to the second position, the first character is saved in RAM, turn the rotary knob to locate the next desired character, etc, until up to 20 alphanumeric characters are set in the protective relay testing description. Once the name is set to your liking, depress the SAVE key and the test will be saved into NVRAM. If any protective relay testing settings have already been stored under the specified test number, a warning prompt is initiated, allowing the user an option to write over the preexisting settings or abandon the request. If the operator would like to erase all test files from the EPS-1000 stored in NVRAM the following sequence should be followed. Press MAIN MENU, UP-Arrow, DOWN-Arrow, LEFT-Arrow, RIGHT-Arrow, and the MAIN MENU upon recognition of the MAIN MENU key a WARNING Screen is displayed. If the procedure initiated is to erase the NVRAM files, press any key and all test files will be erased. Pressing the RESET key at this point will allow the NVRAM settings to retained.

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Recall Screen

The Recall screen allows the user to recall all of the test settings that were previously saved from the Save screen. If a test number is requested that has not been previously been saved, a warning indication is given. All voltage channels on the EPS-1000 are turned OFF, when this screen is active. Phasors Phasors are used everyday in the art of protective relaying. Phasors are defined as a sinusoidal waveform with angular displacement. Phasors hold a very important position in phase sequence, by defining the phase sequence where a phasor passes a fixed point. Understanding phase sequence, is necessary to know that there are three specific sequences that can occur, positive sequence, negative sequence, and zero sequence. An explanation to the usage of (E) or (V), when referencing voltage and phase angles throughout the manual. The symbol (E) is associated with the rise in potential, mostly used in electronic circuitry and the symbol (V) is used on power equipment or systems as a drop in potential. When testing protective relays with the EPS-1000, the fault voltages will drop from the normal pre-fault voltages, so the designator (V) is appropriately used throughout this manual. Also, note that the tails and the tips of VA, VB, and VC, move from the neutral toward the phase designator. This notation, VA-N is used indicating that phase A voltage is pointing from neutral toward the phase designator, than from the neutral to the phase designator, VN-A with the tips being reversed, all pointing toward the neutral position. The VN-A would be confusing, especially when current (I) phasors are introduced. To not confuse anyone, VA-N, VB-N, and VC-N will be used throughout the phasor discussions.

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The EPS-1000 displays the phasors in positive sequence. The EPS-1000 allows for full rotation of the phasors from positive sequence, to negative sequence, to zero sequence, in either the wye configuration or the delta configuration. This feature is available for the advanced operations of the EPS-1000 based upon the testing parameters of a protective relay. An explanation of phasors and the position they hold in time.

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With time frozen at tF, VAG is at 90° peak, VBG is at 300° and VCG is at 210°. VBG and VCG are at the same point in time, therefore, VBC = 0. Following VBG a short time later VBG moves in the positive direction, while VCG continues moving in the negative direction. Therefore, VBC is going positive. VBC is represented in the position shown as phasor VBC with its line increasing in the positive counterclockwise rotation, than being in a position 180° from its present position, in which case, VBC would be negative as counterclockwise rotation continues. Industry practices subscribe to the philosophy that as a phasor moves counterclockwise, the phasors decrease, in lagging angular displacement, from 360° to the 0° reference. If we were to view the phasors position at its polar coordinates of a circle, we would see that the circle can be made to form a cross-section. Within this cross-section, the industry philosophy is extremely important. Notice, that moving counterclockwise from 0° to +90° to 180° to -90° and back to 0°. This translates, when using the EPS-1000, as 0° to -270° to -180° to -90° and back to 0°, respectively. The (-) sign in front of the angle denotes a lagging phase angle from the 0° reference. Also, included in the circle are the designators for VA, VB, and VC, these designators are referenced to (N) neutral.

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Referring to the Figures the explanation of wye and delta configurations can be discussed in detail. The single-phase configuration will be discussed first, since it is the simplest, followed by a 3-phase wye configuration, 3-phase T-connect configuration, 3-phase open delta configuration, and 3-phase delta configuration. Line-Neutral The Line-Neutral mode, is used in the 3-phase wye configuration. Most of the complex protective relays to be tested using this mode will be tested in either a single-phase-neutral, open delta, 3-phase-neutral voltages using the wye or T-connect.

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In the wye configuration, Line-Neutral, the voltages and phases are completely independent. Therefore, changing A-phase, B-phase, or C-phase voltage amplitude or phase angle does not affect the settings of the other voltages or phases unless ganging is enabled. Single-phase Configuration Using External Current Source Each voltage, within the EPS-1000, can be rotated independently from a leading phase angle, to a lagging phase angle, with reference to 0°. For example, testing a particular protective relay's mho characteristic, the maximum torque angle (MTA) is 60°. VA is set to 300° and the current phasor IA is set at 0°, as represented in Figure 6, since the SR unit supplying the current is a non-shiftable source. This angle becomes the MTA for the protective relay, where current lags the voltage by 60°. Most complex impedance protective relays will have this phasor representation in the instruction bulletin.

Using Internal Voltage Source This configuration is very similar to the single phase configuration with the exception of the external current source from the SR unit. The configuration uses the internal phase reference and is predominately used for testing sync-check relays. For example, testing a particular sync-check protective relay's lagging closing angle characteristic, the closing angle is 40°. The line voltage phasor VB is set to 320° and the bus voltage phasor VA is set at 0°. This angle becomes the closing angle for the sync-check relay, where VB lags VA by 40°. Further testing the same sync-check protective relay's leading closing angle characteristic. The line voltage phasor VB is set to 40° and the bus voltage phasor VA is set at 0°. This angle becomes the closing angle for the sync-check relay, where VB leads VA by 40°.

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Most sync-check protective relays will have these phasor representations in their instructions.

Open delta configuration The open delta configuration is also based upon the use of a 3-phase wye configuration with either phase A, B, or C phase disabled. The movement of the phase angle parameters are based upon the faulted phase tested. Previous instructions of the open delta configuration were to set the VA-B and VB-C amplitudes and phase angles, then move the test leads at the protective relay to simulate A-B, B-C, and C-A, phase-to-phase faults. Expanding upon the versatility of the EPS-1000 a discussion will also show setting VA-B and VB-C amplitudes and phasors, without moving the test leads at the protective relay to simulate A-B, B-C, and C-A, phase-to-phase faults. For all tests involving the open delta configuration we recommend that voltage channel #1 red binding post be designated VA and the white binding post be designated as VB, with voltage channel #2 red binding post be designated VC. This arrangement allows us to easily set the amplitude and phasors for a balanced three-phase condition, where VA-B and VB-C are equal in amplitude and separated by an angle of 60o. To establish a 3-phase balanced test, set VA and VC equal in amplitude, setting 0° on VA and 300° on VC. These settings establish an equilateral triangle of equal amplitudes and an equal angular displacement of 60° for a balanced 3-phase open delta configuration.

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The second method of testing coincides with using the open delta configuration. This method establishes the phase-to-phase fault parameters without moving the test leads. Both methods use the Law of Cosines to calculate voltage amplitude and phasor relationships. When setting up an unbalanced Open-Delta configuration, the desired phase-to-phase fault voltage, VAB is set using voltage channel #1 and its phase angle is set to 0° degrees. Phase-to-phase voltage VBC and its phase angle relationship for voltage channel #2, must be calculated using the Law of Cosines; where VB2 = (VA2 + VC2) - 2AC cos B.

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Law of Cosines

)120*23(+)

2V(=V 22122

23

)3(120+)V(21=V 22

1223

)V2V(= 23

12arccosθ

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T-Connection The second method of obtaining three-phase, three-wire voltage source is the T-Connection. This method as shown in Figure is easier to use when obtaining an unbalanced, phase-to-phase fault simulation because it eliminates calculations. To reduce confusion when using the T-Connection, we suggest voltage output #1 be designated VA and its phase angle set at 0°, voltage output #2 be designated VB and its phase angle set for 180° and voltage output #3 be designated VC and its phase angle is set for 270° ; any combination of balanced 3φ or phase to phase.

T-Connection Vf= Desired Fault Voltage

°@02

V=V FA

°@1802

V=V FB

°@270V23=V C LN

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3-phase wye configuration A three-phase, four-wire potential system can be provided using three EPS-1000 test set. The phasor relationships are shown in Figure. The WYE-Connection is ideally suited for simulating phase to ground faults. Voltage channel #1 is designated as VA with its phase relationship set for 0°, voltage channel #2 is then designated as VB and phase angle set for 120°, and voltage channel #3 is designated VC and phase angle set for 240°. VA, VB, and VC are then connected to the Red potential binding posts on the respective test sets. If a neutral is required, it is connected to a White potential section binding post on any test set to ground the load.

Vf = Desired Fault Voltage VA = Vf 0° VB = Vf 120° VC = Vf 240°

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Line-Line In the Line-Line mode, delta configuration, adjustment of a phase voltage amplitude or phase angle will rotate at least one other phase voltage amplitude and/or phase angle to maintain the correct phasor diagram. The reason for this change is to compensate for the delta by manipulating the model of the wye voltage. Change to one phase voltage, using either the rotary knob or soft keys. The phasor representing the voltage is changed in amplitude but, not direction. Its phasor is reduced or increased, equal to ½ of the change to the phasor. This is accomplished by changing the angle and amplitude of the two underlying Y vectors between which the delta vector is drawn. Change two voltages (using knob). Here, the length of the Y phasor that is between the two delta vectors is altered in amplitude but not direction. This has the effect of changing the amplitude and direction of the two delta phasors. A lower limit is reached when the underlying Y vector reaches zero amplitude. Change three voltages (using knob). All three voltages are increased (or decreased) by the same ratio. One or more phases are changed. In the delta mode, all three phases are always ganging despite the setting of the ganged option. If a phase is changed, the vector diagram is rotated about neutral without changing any amplitudes. 3-phase delta configuration

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The 3-phase delta configuration is easily understood when referenced to the wye configuration. The line-line voltage, in the delta mode shows the wye, by connecting the tips of VA, VB, and VC to the (N) neutral point inside the delta. Vf = Desired Fault Voltage

°@0V33=V FA

°@120V33=V FB

°@240V33=V FC

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Data Content Field Name Type Values Voltage Ref. alt. choice Line-Neutral / Line-Line Frequency alt. choice Line / 50 Hertz / 60 Hertz Phase sync. alt. choice Internal / External Ganged alt. choice A-B / B-C / C-A / A-B-C / none Channel A alt. choice Enabled / Disabled Channel B alt. choice Enabled / Disabled Channel C alt. choice Enabled / Disabled Range alt. choice 0-120 V / 0-240 V Graphics alt. choice ABC / CBA / RST Language alt. choice English / French / German

/Portuguese / Spanish Voltage A numeric 0.0 - 240.0 or 0.0 - 120.0 Voltage B numeric 0.0 - 240.0 or 0.0 - 120.0 Voltage C numeric 0.0 - 240.0 or 0.0 - 120.0 Voltage A-B numeric 0.0 - 240.0 or 0.0 - 120.0 Voltage B-C numeric 0.0 - 240.0 or 0.0 - 120.0 Voltage C-A numeric 0.0 - 240.0 or 0.0 - 120.0 Phase A numeric 0 - 359.9 Phase B numeric 0.0 - 359.9 Phase C numeric 0.0 - 359.9 Normal delay numeric 0 - 999 Fault delay numeric 0 - 999 Post Fault delay numeric 0 - 999 Test number numeric 2-60 Description alphanumeric [A-Z], [a-z], [0-9], special

char.

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Technical Translations English German French Spanish PortugueseV l-n V R-Mp T l-n V l-n V l-n V l-l V R-S T l-l V l-l V l-l φ l-n φ R-Mp φ l-n φ l-n φ l-n φ l-l φ R-S φ l-l φ l-l φ l-l Output Ausgang Sortie Salida On Ein courant Conect Volt Output Ausgang Courant Salida Desl Off Aus coupé Descon Volt About Information A propos de Acerca de Sobre Auto Test Auto Test Auto Test Auto Prueba Auto Teste Channel A Kanal A Canal A Canal A Canal A Channel B Kanal B Canal B Canal B Canal B Channel C Kanal C Canal C Canal C Canal C Calibrate Kalibrier Etalonnage Calibración Calibrar Cancel Löschen Annuler Cancelación Cancel Continue Weiter Continuer Continuar Continuar Sync. Synchr. Sync. Sincronizado Sinc. Normal Normal Normal Normal Normal Fault Fehler Défaut Falla Falha Post-Fault Nach-Fehler Post-Défaut Post-Falla Pós-falha Frequency Frequenz Fréquence Frecuencia Freqüência Ganging Koppeln Sélect Escoger Selec Select Wählen Accoupl Acoplam Conjug Graphics Grafik Graphique Gráfico

Gráficos Language Sprache Langue Idioma Idioma Mode Modus Mode Modo Modo No Nein Non No Não Option Option Ecran Pantall

26

English German French Spanish Portuguese

Screen Anzeige Options Opción Opçães Range Bereich Plage Rango Alcance Recall Rückruf Rappel Llamada Recham Voltage Spann. Tension Voltaje Ref. Ref. Refer. Réf. Refer. Volt Rotate Rotier. Tourner Girar Rotar Run Lauf Ecran Pantall Tela Screen Anzeige Exéc. Trabajo Exec Save Sicher Ecran Pantall Tela Screen Anzeige Sauveg. Guardár Guardar Setup Einst. Ecran Pantall Tela Screen Anzeige Config. Ajustes Config Voltage Spann. Sortie Voltaje Lig On Ein courant Conecta Volt Voltage Spann. Courant Voltaje Desl Off Aus coupé Descon. Volt Yes Ja Oui Sí Sim Ganged: Gekoppelt: Accoupl.: Acoplados: Alinh: Line-Neutral R-Mp Ligne-neutre Línea a Neutro Linha-Line-Line R-S Ligne-Ligne Línea a Línea Linha-Linha Internal Intern Interne Interna InternExternal Extern Externe Externa Externa Line Netz Ligne Línea Linha 60 Hertz 60 Hertz 60 Hertz 60 Hertz 60 Hertz 50 Hertz 50 Hertz 50 Hertz 50 Hertz 50 Hertz None Keine Aucune Ninguna Nenhuma A-B A-B A-B A-B A-B B-C B-C B-C B-C B-C C-A C-A C-A C-A C-A A-B-C A-B-C A-B-C A-B-C A-B-C Disabled Eingeschaltet Désactivé Desactivado Desativado Enabled Abgeschaltet Activé Activado Ativado ABC ABC ABC ABC ABC CBA CBA CBA CBA CBA RST RST RST RST RST 0-250 V 0-250 V 0-250 V 0-250 V 0 a 250 V

27

English German French Spanish Portuguese

0-140 V 0-140 V 0-140 V 0-140 V 0 a 140 V English Englisch Anglais Inglés Inglês Spanish Spanisch Espagnol Español Espanhol German Deutsch Allemand Alemán Alem o Portuguese Portugiesisch Portugais Portugués Português French Französisch Français Francés Francês Automatic test Automatischer Test automatique Realizando Teste em in progress Test läuft en cours prueba automática automático Voltage Spannungs- Tension Voltaje Referência reference referenz de référence de referencia de voltagem About Über L'EPS-1000 A Propos Acerca del EPS-1000 EPS-1000 de EPS-1000 sobre EPS-1000 Screen Bildschirm- Réglage du Contraste de Contraste contrast kontrast contraste la pantalla da tela Delay Verzögerung Retard Espera Retardamento

de phase ELECTRONIC ELEKTRONISCHER DEPHASEUR DESFASADOR COMUTADOR PHASE SHIFTER PHASENSCHIEBER ELECTRONIQUE ELECTRONICO DE FASE

ELETRNICO Ganging Kopplung Accouplement Acoplamiento Conjugaç o Phase Phasen- Synchronisation Sincronización Sincronização synchronization synchronisation de phase de fase de fase RECALL RÜCKRUF RAPPEL LLAMADA RECHAMAR OPTIONS OPTIONEN OPTIONS OPCIONES OPÇÃES RUN LAUF EXECUTION TRABAJO EXECUTAR SAVE SICHERN SAUVEGARDER GUARDAR GUARDAR This test number is in use. Press the SAVE key again to replace the test. Press the CANCEL key if you do not wish to overwrite this test. EXCESSIVE LOAD ON CHANNEL ONE OR MORE VOLTAGES OUT OF RANGE. Do you wish to set them to the maximum voltage for this range? Test number not found. Press the CANCEL key to continue. Enter the test number to recall (1-60) and press the RECALL key. Press the CANCEL key if you do not wish to recall a test setup. Press the CANCEL key if you do not wish to save these setup parameters. Diese Testnummer ist besetzt. Für neuen Test die SICHERN-Taste noch einmal drücken. Die LÖSCHEN-Taste drücken, wenn dieser Test nicht überschrieben werden soll. ÜBERLASTUNG AUF KANAL EINE ODER MEHRERE SPANNUNGEN AUSSERHALB DES WERTEBEREICHES. So len sie auf die Maximalspannung für diesen Bereich eingestellt werden? Testnummer nicht auffindbar. Zum Weitermachen LÖSCHEN-Taste drücken. Aufzurufende Testnummer eingeben (1-60) und AUFRUF-Taste drücken. Die LÖSCHEN-Taste drücken, wenn ein Test nicht aufgerufen werden soll. Die LÖSCHEN-Taste drücken, wenn diese Einstellparameter nicht gespeichert werden sollen.

28

Ce numéro de test est déjà utilisé. Réappuyez sur la touche de SAUVEGARDE pour remplacer le test. Appuyez sur la touche d'ANNULATION si vous ne voulez pas recouvrir ce test. CHARGE EXCESSIVE SUR LE CANAL AU MOINS UNE TENSION HORS LIMITES. Voulez-vous les régler à la limite maximum de cette plage de tensions? Numéro de test introuvable. Appuyez sur la touche d'ANNULATION pour continuer. Tapez le numéro du test à rappeler sur la touche de RAPPEL. Appuyez sur la touche d'ANNULATION si vous ne voulez pas rappeler une configuration de test. Appuyez sur la touche d'ANNULATION si vous ne voulez pas sauvegarder ces paramètres de configuration. Se está utilizando este numero de prueba. Oprima de nuevo la tecla GUARDAR para sustituir la prueba. Oprima la tecla CANCELAR si usted no desea sobreescribir esta prueba. CARGA EXCESIVA EN EL CANAL UNO O MAS VOLTAJES POR ENCIMA DEL RANGO SELECCIONADO. ¿Desea usted ajustarlos al voltaje máximo para este rango? No fue hallada la prueba pedida. Oprima la tecla de CANCELAR para continuar. Escriba el número de prueba a llamar (1-60) y oprima la tecla de LLAMADA. Oprima la tecla CANCELAR si usted no desea solicitar un ajuste de prueba. Oprima la tecla CANCELAR si usted no desea guardar los parámetros de esta configuración. Este número de teste está em uso. Aperte a tecla GUARDAR novamente para substituir o teste. Aperte a tecla CANCELAR se não quiser cancelar este teste. CARGA EXCESSIVA NO CANAL UMA OU MAIS VOLTAGENS FORA DO ALCANCE. Você deseja ajustá-las para a voltagem máxima deste alcance? Número de teste não encontrado. Aperte a tecla CANCELAR para continuar. Digite o número de teste para rechamar (1-60) e aperte a tecla RECHAMAR. Aperte a tecla CANCELAR se não quiser rechamar uma configuraç o de teste. Aperte a tecla CANCELAR se n o quiser guardar os parâmetros de configuração. Enter the test number to save (1-60) and press the SAVE key. Zu speichernde Testnummer eingeben (1-60) und SICHERN-Taste drücken. Entrez le numéro du test à sauvegarder (1-60) et appuyez sur la touche de SAUVEGARDE. Escriba el número de prueba a guardar (1-60) y oprima la tecla GUARDAR. Digite o número de teste a ser guardado (1-60) e aperte a tecla GUARDAR. TEST NUMBER: TESTNUMMER NUMERO DE TEST PRUEBA NUMERO: NUMERO DE TESTE: THERMAL OVERLOAD ON CHANNEL THERMISCHE ÜBERLASTUNG AUF KANAL SURCHARGE THERMIQUE SUR LE CANAL SOBRECARGA TERMICA EN EL CANAL SOBRECARGA TÉRMICA NO CANAL UNKNOWN INTERRUPT: UNBEKANNTE STÖRUNG: INTERRUPTION INTERRUPCION POR INTERRUPÇ O N O INCONNUE: CAUSA DESCONOCIDA DETERMINADA:

29

Service Data

Servicing

The following maintenance is recommended:

1. Examine the unit every six months for: a. Dust and other particulate matter collecting on the

fins of the heat sinks. b. Moisture condensation inside the lens. c. Corrosion on the exposed metal surfaces.

2. Remove dust with dry, low pressure, compressed air.

3. Remove moisture as much as possible by putting the test set

in a warm, dry environment.

4. As corrosion may take many forms, no specific recommendations can be made for its removal.

Service and Repair Order Instructions

If factory service is required or desired, contact the factory for return instructions.

A Repair Authorization (RA) number will be assigned for proper handling of the unit when it arrives at the factory.

If desired, a letter with the RA number and instructions can be provided.

Provide the factory with model number, serial number, nature of the problem or service desired, return address, your name, and where you can be reached should the factory need to contact you.

If desired, you may also provide a purchase order number, cost limit, billing, and return shipping instructions.

National Institute of Standards and Technology (NIST) traceable calibration and certification of two types is available, if desired, at additional cost.

Class One: A certificate is provided verifying the

traceability and calibration of the equipment.

Class N: That which is required for nuclear power plants. A certificate of traceability and calibration along with "as found" and "as left" data are provided.

30

If an estimate is requested, provide the name and contact information of the person with approval/disapproval authority.

Pack the equipment appropriately to prevent damage during shipment. If a reusable crate or container is used, the unit will be returned in it if it is in suitable condition.

Put the RA number on the address label of the shipping container for proper identification and faster handling.

NOTE: Ship the equipment without instruction manuals or

nonessential items such as test leads, etc. These items are not needed to conduct repairs.

Preparation for Reshipment

Save the shipping container for future use. The shipping container your unit came in is designed to withstand the normal bumps and shocks of shipping via common commercial carrier. For example, you may wish to reship your unit to AVO Multi-Amp for annual calibration certification.

31

Warranty Statement AVO Multi-Amp Corporation warrants to the original purchaser that the product is free of defects in material and workmanship for a period of one (1) year from date of shipment. This warranty is limited and shall not apply to equipment which has damage, or cause of defect, due to accident, negligence, improper operation, faulty installation by the purchaser, or improper service or repair by any person, company or corporation not authorized by AVO Multi-Amp Corporation. AVO Multi-Amp Corporation will, at its' option, either repair or replace those parts and/or materials that it deems to be defective. Any costs incurred by the purchaser for the repair or replacement of such parts and/or materials shall be the sole responsibility of the original purchaser.

THE ABOVE WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EITHER EXPRESSED OR IMPLIED ON THE PART OF THE MULTI-AMP CORPORATION, AND IN NO EVENT SHALL THE AVO MULTI-AMP CORPORATION BE LIABLE FOR THE CONSEQUENTIAL DAMAGES DUE TO THE BREACH THEREOF.

32

Test Procedures All test procedures written in this manual are established for verification of testing the protective relays under fault conditions. Therefore the testing parameters can be easily placed in the Run Screen Fault Mode of operation. This will allow the operator to test the respective relay easily. The procedure to have the ability to Recall each test should be followed as provided in this example. 1. Setup the Options Screen for the protective relay's test

parameters. 2. Select the Run Screen, the Run Screen will display the Normal

Mode of testing the relay. 3. Setup the Normal operating voltages and phase angles for testing.

Also, set the delay time in cycles for applying the normal voltage to the protective relay.

4. Switch to Fault Mode by depressing the Mode key. Input the fault parameters of the respective protective relay as described in these Test Procedures. Also, set the delay time in cycles for applying the fault voltage to the protective relay.

5. Switch to Post-Fault Mode by depressing the Mode key. Input the post-fault parameters of the respective protective relay. Also, set the delay time in cycles for applying the fault voltage to the protective relay.

6. Once these test parameters are entered, return to the MAIN MENU Screen.

7. Press the Save Screen key. Select the Test Number to save i.e. 2. Then position the cursor in the Test Description field, as an example; the CEB12 relay parameters were entered, using the Arrow Keys and the Rotary Knob, enter CEB12A_Unit7.

8. Depress Save key. Test File is now saved into memory. 9. Press Recall Screen, Press Run Screen, Turn Output ON, Sync. to

SR unit, Press Auto Test with SR unit Timer connected. Each protective relay test parameters entered can be verified using this method. This entry will allow the operator to store up to 60 individual test files. Saving these test files will reduce the testing time of complex protective relays.

33

AVO Multi-Amp EPS-1000 Date: August 15, 1993 Rev: A

IEEE Device Number: 21 Function: Distance Relay

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the CEB12 or CEB51 protective relay acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference GEK-26420 Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The CEB12 and CEB51 relays are single-phase, single zone, mho distance relay with provisions for offsetting the characteristic. The relays is designed primarily for use where one zone of back-up protection is required. Probably the most common application of the CEB relays is in generator back-up protection schemes where the relays are used to protect the generator from faults on the adjacent system which are not cleared by the first line relays. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

35

Relay Notes:

SETUP AND PROCEDURE For each test: Current source and monitor is assigned to the SR-90 utilized for the test. Jumper relay terminals 6 to 7. All test values are based upon a 60° maximum torque angle 5 Ω reach

and the following formula:

I*2V=Z ÷

EPS-1000 TEST CONDITIONS CONNECT

VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

17

18

VA

55

300°

60.0

IA

5

8

IA

5

0°

60.0

MON

1

20

MAXIMUM TORQUE ANGLE TEST - MHO UNIT 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to test voltage at 0°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. EPS-1000 position cursor over phase VA and turn Rotary Knob to

adjust phase angle from 0° to 300° (current lags voltage by 60°). If MTA equals 75° then set VA at 285°. Vary phase angle ±30° to find dropout point of MHO unit.

5. Record pickup value, refer to CEB instruction manual for adjustment.

6. De-initiate SR-90 and EPS-1000 whenever adjustment are required to the CEB relay.

7. De-initiate SR-90 unit and EPS-1000 when test is completed. REACH TEST - POLAR PLOT 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to rated voltage at 0°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. Set EPS-1000 VA phase angle to 300°. If MTA equals 75° the set

VA at 285°. Position cursor over voltage VA and turn Rotary Knob to adjust voltage to find pickup of MHO unit ohmic reach.

36

37


38

6. De-initiate SR-90 and EPS-1000 whenever adjustments are required to the CEB relay.

7. Increase and/or decrease VA phase angles for plotting MHO unit. 8. De-initiate SR-90 unit and EPS-1000 when test is completed. OFFSET 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 V to rated voltage at 0°, initiate V ON. A A3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. Set EPS-1000 VA phase angle to 180° opposite MTA, position cursor

over voltage VA and turn Rotary Knob to adjust voltage to find pickup of OFFSET unit ohmic reach.


6. De-initiate SR-90 and EPS-1000 whenever adjustment are required to the CEB relay.

7. Increase and/or decrease VA phase angles for plotting MHO unit. 8. De-initiate SR-90 unit and EPS-1000 when test is completed.

39



This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the CEY51A or CEY51B protective relay acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference GEK-1275 Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The CEY51A and CEY51B relays are three-phase, high speed, single zone, mho directional distance relay with provisions for offsetting the characteristic. The relays is designed primarily for use where one zone of back-up protection is required. Probably the most common application of the CEY relays is in generator back-up protection schemes where the relays are used to protect the generator from faults on the adjacent system which are not cleared by the first line relays. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

41

Relay Notes:

SETUP AND PROCEDURE For each test: Current source and monitor is assigned to the SR-90 utilized for the test. Jumper relay terminals 6 to 8 to 10, 13 to 16 to 17, 14 to 15, and 18 to 19 to 20. Refer to Relay Notes for 0/1-2, 0/2-3, and 0/3-1 tests. All test values are based upon a 60° maximum torque angle and the

following formula:

I*2V=Z ÷


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

15

17

VA

55

0°

60.0

IA

5

7

IA

5

0°

60.0

MON

1

2

MAXIMUM TORQUE ANGLE TEST - MHO UNIT 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to test voltage at 300°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. EPS-1000 position cursor over phase VA and turn Rotary Knob to

adjust phase angle from 0° to 300° (current lags voltage by 60°). If MTA equals 75° the set VA at 285°. Vary phase angle ±30° to find dropout point of MHO unit.

5. Record pickup value, refer to CEY instruction manual for adjustment.

6. De-initiate SR-90 and EPS-1000 whenever adjustments are required to the CEY relay.

7. De-initiate SR-90 unit and EPS-1000 when test is completed. REACH TEST - POLAR PLOT 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to rated voltage at 0°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. Set EPS-1000 VA phase angle to 300°. If MTA equals 75° the set

VA at 285°. Position cursor over voltage VA and turn Rotary Knob to adjust voltage to find pickup of MHO unit ohmic reach.

42

43



7. Increase and/or decrease V phase angles for plotting MHO unit. A8. De-initiate SR-90 unit and EPS-1000 when test is completed. OFFSET 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 V to rated voltage at 0°, initiate V ON. A A3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. Set EPS-1000 VA phase angle to 180° opposite MTA, position cursor

over voltage VA and turn Rotary Knob to adjust voltage to find pickup of OFFSET unit ohmic reach. Vary phase angle ±30° to find dropout point of OFFSET unit.



7. Increase and/or decrease V phase angles for plotting MHO unit. A8. De-initiate SR-90 unit and EPS-1000 when test is completed.

44


IEEE Device Number: 32 Function: Directional Power

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the CRN-1 protective relay acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference I.L. 41-251.2K Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The CRN-1 relay is a single phase directionally controlled timing relay used to protect ac generators from motoring. When such a condition occurs and persists for a predetermined interval, the generator may be tripped or an alarm sounded. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

46

Relay Notes:

SETUP AND PROCEDURE For each test: Current source is assigned to the SR-90 unit utilized for the test and voltage source as indicated in the preset conditions table.


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

6

7

VA

120

0°

60.0

MON

10

1

47

MINIMUM PICKUP 1. Block directional unit contacts closed. 2. Set EPS-1000 VA equal to 50% of rated voltage. 3. Initiate EPS-1000, with VA ON. 4. Turn Rotary Knob to increase VA up or down to find minimum

pickup. 5. Minimum pickup should be within ±3% of acceptance value where:

Minimum Pickup = (54% * Rated Voltage). 6. De-initiate V . A7. Refer to relay instruction manual for adjustment to CRN-1 relay

for minimum pickup. TIMING TEST 1. Block directional unit contacts closed. 2. Turn power ON for SR-90, set Timer Control to External and Timer

Start gate to latched. 3. Connect test leads from Timer Relay Contacts on EPS-1000 to Timer

Start gate binding posts on SR-90 and connect Timer Stop gate to CRN-1 trip contacts.

4. Set VA on EPS-1000 equal to normal operating voltage in the Normal Run Screen and set VA equal to fault voltage in the Fault Run Screen.

5. Turn VA ON, Initiate Auto Test to simulate Timing test with VA fault voltage applied to CRN-1.

6. Repeat similar tests for different fault voltage values. 7. Timing accuracy should be within ±5% of rated fault values.

Refer to relay instruction manual for adjustment to CRN-1 relay for accurate timing.

48


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

6

7

VA

120

0°

60.0

IA

9

8

IA

4

0°

60.0

MON

10

1

MAXIMUM TORQUE ANGLE 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 V to rated voltage at 0°, initiate V ON. A A3. Turn SR-90 ON, set SR-90 current I to 4 amperes. A4. CRN-1 relay contacts should be closed. Adjust the Rotary Knob on

the EPS-1000 so VA phase angle is set to 120° (current leads voltage). Relay contacts should be closed. Any increase of 1° leading, 121°, should cause the CRN-1 contacts to open. If contacts open greater than 1°, adjustment is required. Refer to instruction manual for proper adjustment to the back resistor.

5. De-initiate SR-90 unit and EPS-1000 whenever adjustment is required and re-test.

6. De-initiate SR-90 unit and EPS-1000 when test is completed. REACH TEST - POLAR PLOT 1. Use a Smith chart for plotting and scale the chart accordingly

with 5° increments. 2. Set EPS-1000 in Options Screen to External Reference. 3. Set EPS-1000 voltage channel VA to rated voltage at 120°,

initiate V ON. A4. Initiate SR-90 and turn current IA ON, increase current from 0.0

amps until CRN-1 relay contacts close. Record this current reading and increment the phase angle by 5°, continue this sequence until VA on EPS-1000 reaches a point of 300° (60° current lags voltage).

5. De-initiate SR-90 and EPS-1000. 6. Plot the test values on a Smith chart.

49


IEEE Device Number: 25 Function: Synchronizing

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the CVE and CVE-1 protective relay acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference I.L. 41-681.P Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The CVE is a synchro-verifier relay and the CVE-1 is a synchro-verifier relay with line and bus voltage sensing relays. The synchro-verifier is used to verify the condition of synchronism existing between two system voltages. The relay's contacts will close when these voltages are within the relay's set limits. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

51

Relay Notes:

SETUP AND PROCEDURE For each test: Timing source is assigned to the SR-90 utilized for the test. The test values are based upon a 20° closing angle relay setting.


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

6

7

VA

*

0°

60.0

52

VB 9 8 VB * 0° 60.0

MON 10

1

CENTERING CIRCLE (CVE) 1. Set EPS-1000 to Internal Reference, with no Ganging. 2. Set EPS-1000 voltage channel VA and VB to rated voltage at 0°,

turn VA and VB ON. 3. Position the cursor over phase VB and rotate in the lagging

direction, (0° to 340°), until the contacts open, record this value. Rotate the phase angle in the opposite, leading direction, (0° to 20°), until the contacts open a second time, record this value.

4. If the two angles are not within ±1° of each other, adjustment must be made to center the CVE. Refer to instruction manual for proper adjustment to the resistor.

5. De-initiate the EPS-1000 whenever adjustment to the resistor is required.

6. Re-test as necessary. 7. Record values and de-initiate VA and VB output OFF. TIMING TEST 1. Turn power ON for SR-90, set Timer Control to External and Timer


Start gate binding posts on SR-90 and Timer Stop gate to CVE monitor circuit.

3. Set VA and VB on EPS-1000 equal to normal operating voltage in the Normal Run Screen with 60 cycles delay and set VA and VB equal to normal voltage and VB to fault angle in the Fault Run Screen with 300 cycles delay.

4. Turn VA ON, Initiate Auto Test to simulate Timing test with VB fault angle applied to CVE.

5. Repeat similar tests for different fault angles if necessary. 6. De-initiate VA and VB outputs on EPS-1000.

53


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

5&7

4

VA

*

0°

60.0

VB

6

8

VB

*

0°

60.0

MON

10

1

CENTERING CIRCLE (CVE-1) without COMMON POTENTIAL COILS 1. Set EPS-1000 to Internal Reference, with no Ganging. 2. Set EPS-1000 voltage channel VA and VB to rated voltage at 0°,

turn V and V ON. A B3. Position the cursor over phase VB and rotate in the lagging

direction, (0° to 340°), until the contacts open, record this value. Ramp the phase angle in the, opposite, leading direction, (0° to 20°), until the contacts open a second time, record this value.

4. If the two angles are not within ±1° of each other, adjustment must be made to center the CVE. Refer to instruction manual for proper adjustment to the resistor.


6. Re-test as necessary. 7. Record values and de-initiate VA and VB output OFF. TIMING TEST 1. Turn power ON for SR-90, set Timer Control to External, and Timer


Start gate binding posts on SR-90 and Timer Stop gate to CVE monitor circuit.

3. Set VA and VB on EPS-1000 equal to normal operating voltage in the Normal, Run Screen with 60 cycles delay and set VA and VB equal to normal voltage and VB to fault angle in the Fault, Run Screen with 300 cycles delay.

4. Turn VAand VB ON, Initiate Auto Test to simulate Timing test with VB fault angle applied to CVE.


54



This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the GCX51A and GCX51B protective relay acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference GEI-98328 Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The GCX51A and GCX51B relays are single-phase, three-zone phase distance relays. The first and second zone distance measurements are made by a unit having a reactance or ohm characteristic while the third zone has a directional mho characteristic. The GCX51A and GCX51B relays are identical except that the GCX51B contains an instantaneous overcurrent fault detector while the GCX51A does not. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

Relay Notes:

SETUP AND PROCEDURE For each test: Current source and monitor is assigned to the SR-90 utilized for the test. Jumper relay terminals 7 to 8. Refer to Relay Notes for GCX monitor contacts. All test values are based upon a 60° maximum torque angle, 5Ω reach


I*2V=Z ÷

56

57


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

17

18

VA

55

0°

60.0

IA

5

10

IA

5

0°

60.0

MON

*

*

MAXIMUM TORQUE ANGLE TEST - MHO UNIT 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 V to rated voltage at 0°, initiate V ON. A A3. Turn SR-90 ON, set SR-90 current I to 5.0 amperes. A4. EPS-1000 position cursor over phase VA and turn Rotary Knob to

adjust phase angle from 0° to 300° (current lags voltage by 60°), vary phase angle ±30° to find dropout point of MHO unit.

5. Record pickup value, refer to GCX51 instruction manual for adjustment.

6. De-initiate SR-90 and EPS-1000 whenever adjustments are required to the GCX51 relay.

7. De-initiate SR-90 unit and EPS-1000 when test is completed. REACH TEST - POLAR PLOT 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 V to rated voltage at 0°, initiate V ON. A A3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. Set EPS-1000 VA phase angle to 300°, position cursor over voltage

VA and turn Rotary Knob to adjust voltage to find pickup of MHO unit ohmic reach.

5. Record pickup value, refer to GCX51 instruction manual for adjustment.

6. De-initiate SR-90 and EPS-1000 whenever adjustments are required to the GCX51 relay.

7. Increase and/or decrease VA phase angles for plotting MHO unit. 8. De-initiate SR-90 unit and EPS-1000 when test is completed. OVERCURRENT UNIT PICKUP - GCX51B 1. Connect SR-90 I to GCX51B relay terminals 5 and 6 respectively. A2. Connect monitor binding posts to relay terminals 2 and 11. 3. Set IA equal to tap value, initiate IA and ramp current up or

down to find minimum pickup. 4. Record value and refer to GCX51B instruction manual for

adjustment. 5. De-initiate SR-90 unit when test is completed.

58



This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the GCY51 protective relay acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference GEI-98338 Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The GCY51 relay is a single-phase, three-zone, expanded range, directional mho step distance relay for transmission line protection phase distance relays. The GCY51 relay is used in combination with other relays and pilot channels to provide high speed protection in directional comparison and transferred tripping schemes. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

Relay Notes:

SETUP AND PROCEDURE For each test: Current source and monitor is assigned to the SR-90 utilized for the test. Jumper relay terminals 4 to 5, 6 to 7, 8 to 9, 17 to 19, and 18 to 20. Refer to Relay Notes for GCY monitor contacts. All test values are based upon a 60° maximum torque, 5 Ω reach angle


I*2V=Z ÷

60

61


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

17

18

VA

55

0°

60.0

IA

3

10

IA

5

0°

60.0

MON

*

*

MAXIMUM TORQUE ANGLE TEST - MHO UNIT1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 V to test voltage at 0°, initiate V ON. A A3. Turn SR-90 ON, set SR-90 current I to 5.0 amperes. A4. EPS-1000 position cursor over phase VA and turn Rotary Knob to

adjust phase angle from 0° to 300° (current lags voltage by 60°), vary phase angle ±30° to find dropout point of MHO unit.

5. Record pickup value, refer to GCY instruction manual for adjustment.

6. De-initiate SR-90 and EPS-1000 whenever adjustments are required to the GCY relay.

7. De-initiate SR-90 unit and EPS-1000 when test is completed. REACH TEST - POLAR PLOT1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to test voltage at 0°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA to 5.0 amperes. 4. Set EPS-1000 VA phase angle to 300°, position cursor over voltage

VA and turn Rotary Knob to adjust voltage to find pickup of MHO unit ohmic reach.

5. Record pickup value, refer to GCY instruction manual for adjustment.

6. De-initiate SR-90 and EPS-1000 whenever adjustments are required to the GCY relay.

7. Increase and/or decrease V phase angles for plotting MHO unit. A8. De-initiate SR-90 unit and EPS-1000 when test is completed.

62


IEEE Device Number: 25 Function: Synchronizing

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the IJS protective relay acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference GEH-1791 Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The IJS a synchro-verifier relay with line and bus voltage sensing relays. The synchro-verifier is used to verify the condition of synchronism existing between two system voltages. The relay's contacts will close when these voltages are within the relay's set limits. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

64

Relay Notes:

SETUP AND PROCEDURE For each test: Timing source is assigned to the SR-90 utilized for the test. The test values are based upon a 20° closing angle relay setting.


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

5

6

VA

120

0°

60.0

VB

7

8

VB

120

0°

60.0

65

MON

1

2

CENTERING CIRCLE (IJS) 1. Set EPS-1000 to Internal Reference, enable Channel A and Channel

B, with no ganging. 2. Set EPS-1000 voltage channel VA and VB to test voltage at 0°, turn

V and V ON. A B3. Position the cursor over phase VB and rotate in the lagging

direction, (0° to 340°), until the contacts open, record this value. Ramp the phase angle in the, opposite, leading direction, (0° to 20°), until the contacts open a second time, record this value.

4. If the two angles are not within ±1° of each other, adjustment must be made to center the IJS. Refer to instruction manual for proper adjustment to the resistor.


6. Re-test as necessary. 7. Record values and de-initiate VA and VB output OFF. TIMING TEST 1. Turn power ON for SR-90 and set Timer Control to External. 2. Connect test leads from Timer Relay Contacts on EPS-1000 to Timer

Start gate binding posts on SR-90 and Timer Stop gate to IJS monitor circuit.

3. Set VA and VB on EPS-1000 equal to normal operating voltage in the Normal Run Screen with 60 cycles delay and set VA and VB equal to normal voltage and VB to fault angle in the Fault Run Screen with 300 cycles delay.

4. Turn VA and VB ON, Initiate Auto Test to simulate Timing test with V fault angle applied to IJS. B


66


IEEE Device Number: 67 Function: Directional Overcurrent

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the IRD and IRV protective relays acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference I.L. 41-133P Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The IRD is a dual polarized relay for directional ground overcurrent faults. The IRV is a directional overcurrent relay for phase protection. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

68

Relay Notes:

SETUP AND PROCEDURE For each test: Current source and monitor is assigned to the SR-90 utilized for the test. Jumper relay terminals 6 to 8. Connect CS-1 unit's relay terminals 10 (+) and 3 (-) to the 125 volt dc source for relay simulation testing of directional overcurrent relays.

EPS-1000 TEST CONDITIONS

69

CONNECT

VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

5

4

VA

120

0°

60.0

IA

9

7

IA

2

0°

60.0

MON

10

1

MINIMUM PICKUP TEST 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 V to test voltage at 0°, initiate V ON. A A3. Turn SR-90 ON, set SR-90 current I equal to tap value. A4. EPS-1000 position cursor over phase VA and turn Rotary Knob to

adjust phase angle from 0° to 300° (current lags voltage by 60°), vary phase angle to find pickup point of directional unit.

5. Record pickup value, refer to instruction manual for adjustment. 6. De-initiate SR-90 and EPS-1000 whenever adjustment is required to

the relay. 7. De-initiate SR-90 unit and EPS-1000 when test is completed. TIMING TEST 1. Turn power ON for SR-90, set Timer Control to External, and Timer

Start gate latched. 2. Connect test leads from Timer Relay Contacts on EPS-1000 to Timer

Start gate binding posts on SR-90 and connect Timer Stop gate to relay trip contacts.

3. Set VA on EPS-1000 equal to normal operating voltage and phase angle in the Normal Run Screen with 60 cycles delay and set VA equal to fault voltage and phase angle in the Fault Run Screen with fault cycles delay equal to TOC curve.

4. Turn VA ON, Initiate Auto Test to simulate Timing test with VA fault voltage and phase angle applied to relay.


Refer to relay instruction manual for adjustment to relay for accurate timing.

70


the relay. 9. De-initiate SR-90 unit and EPS-1000 when test is completed. DIRECTIONAL UNIT TEST 1. Turn power ON for SR-90 and set Timer Control to Monitor/Horn. 2. Connect test leads from relay contacts to monitor binding posts

on SR-90. 3. Set VA on EPS-1000 equal to normal operating voltage and phase

angle in the Normal Run Screen. 4. Set I on SR-90 equal to fault current. A5. Reduce V equal to minimum directional fault voltage. A6. Repeat similar tests for different fault voltage values. 7. Record pickup value, refer to instruction manual for adjustment. 8. De-initiate SR-90 and EPS-1000 whenever adjustment is required to

the relay. 9. De-initiate SR-90 unit and EPS-1000 when test is completed. INSTANTANEOUS OVERCURRENT PICKUP TEST 1. Connect monitor circuit of SR-90 to relay terminals 10 and 2. 2. Block normally open directional unit contacts closed. 3. Set I equal to instantaneous fault current level(s). A4. Initiate I , upon contact closure, record the pickup value. A5. Repeat test as necessary. 6. De-initiate SR-90 whenever adjustment is required to the relay. 7. De-initiate SR-90 when test is completed.

71


IEEE Device Number: 67 Function: Directional

Overcurrent This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the JBC and JBCV protective relays acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference GEK-49848 & GEK-49850 Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The JBC is a phase directional overcurrent relay. The JBCV is a phase directional overcurrent relay with voltage restraint. Both relays are for phase protection. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

73

Relay Notes:

SETUP AND PROCEDURE For each test: Assign current source and monitor circuit to SR-90. Jumper relay terminals 4 to 5.


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

120

0°

60.0

74

IA 3 6 IA 2 0° 60.0

MON 1

11

MINIMUM PICKUP TEST 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to rated voltage at 0°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA equal to 1.5 times tap value. 4. EPS-1000 position cursor over phase VA and turn Rotary Knob to



the relay. 7. De-initiate SR-90 unit and EPS-1000 when test is completed. TIMING TEST 1. Turn power ON for SR-90, set Timer Control to External and Timer

Start gate latched. 2. Connect test leads from Timer Relay Contacts on EPS-1000 to Timer


3. Set VA on EPS-1000 equal to normal operating voltage and phase angle in the Normal Run Screen with 60 cycles delay and set VA equal to fault voltage and phase angle in the Fault Run Screen with fault cycles delay equal to TOC curve.







angle in the Normal Run Screen. 4. Set I on SR-90 equal to fault current. A5. Reduce V equal to minimum directional fault voltage. A6. Repeat similar tests for different fault voltage values. 7. Record pickup value, refer to instruction manual for adjustment. 8. De-initiate SR-90 and EPS-1000 whenever adjustment is required to

the relay. 9. De-initiate SR-90 unit and EPS-1000 when test is completed.

75

INSTANTANEOUS OVERCURRENT PICKUP TEST 1. Connect monitor circuit of SR-90 to relay terminals 1 and 12. 2. Block normally open directional unit contacts closed. 3. Set I equal to instantaneous fault current level(s). A4. Initiate I , upon contact closure, record the pickup value. A5. Repeat test as necessary. 6. De-initiate SR-90 whenever adjustment is required to the relay. 7. De-initiate SR-90 when test is completed. DIRECTIONAL UNIT POTENTIAL POLARIZATION TEST 1. Connect relay terminals 9(±) and 10(N) to VA and relay terminals

5(±) and 6(N) to IA. 2. Maximum torque angle is 60°(current lags voltage), make

appropriate adjustment to calibrate relay's maximum torque angle to within (±5%).

DIRECTIONAL UNIT CURRENT POLARIZATION TEST 1. Connect relay terminals 5(±) and 8(N) to IB. Jumper relay

terminals 6 to 7. 2. Polarization angle is 0°, make appropriate adjustment to

calibrate relay's maximum torque angle to within (±5%).

76


IEEE Device Number: 67 Function: Directional Overcurrent

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the JBCG51E protective relays acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference GEK-49849A Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The JBCG51E is a ground directional overcurrent relay. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

78

Relay Notes:

SETUP AND PROCEDURE For each test: Current source assigned to the SR-unit utilized for the test and voltage sources as indicated in the preset conditions table. Jumper relay terminals 4 to 5.


VALUES

ASSIGN

±

N

TEST

∠

HZ

79

VA

9

10

VA

*

0°

60.0

IA

3

6

IA

*

0°

60.0

MON

1

11

MINIMUM PICKUP TEST 1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to rated voltage at 0°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA equal to 1.5 times tap value. 4. EPS-1000 position cursor over phase VA and turn Rotary Knob to



the relay. 7. De-initiate SR-90 unit and EPS-1000 when test is completed. TIMING TEST 1. Turn power ON for SR-90, and set Timer Control to External, and

Timer Start gate Latched.. 2. Connect test leads from Timer Relay Contacts on EPS-1000 to Timer


3. Set VA on EPS-1000 equal to normal operating voltage and phase angle in the Normal Run Screen with 60 cycles delay and set VA equal to fault voltage and phase angle in the Fault Run Screen with fault cycles equal to TOC curve.







angle in the Normal Run Screen. 4. Set IA on SR-90 equal to fault current. 5. Reduce V equal to minimum directional fault voltage. A6. Repeat similar tests for different fault voltage values.

80


the relay. 9. De-initiate SR-90 unit and EPS-1000 when test is completed. INSTANTANEOUS OVERCURRENT PICKUP TEST 1. Connect monitor circuit of SR-90 to relay terminals 1 and 12. 2. Block normally open directional unit contacts closed. 3. Set IA equal to instantaneous fault current level(s). 4. Initiate IA, upon contact closure, record the pickup value. 5. Repeat test as necessary. 6. De-initiate SR-90 whenever adjustment is required to the relay. 7. De-initiate SR-90 when test is completed. DIRECTIONAL UNIT POTENTIAL POLARIZATION TEST 1. Connect relay terminals 9(±) and 10(N) to VA and relay terminals

5(±) and 6(N) to IA. 2. Maximum torque angle is 60°(current lags voltage), make

appropriate adjustment to calibrate relay's maximum torque angle to within (±5%).

DIRECTIONAL UNIT CURRENT POLARIZATION TEST 1. Connect relay terminals 5(±) and 8(N) to IB. Jumper relay

terminals 6 to 7. 2. Polarization angle is 0°, make appropriate adjustment to

calibrate relay's maximum torque angle to within (±5%).

81


IEEE Device Number: 21 Function: Distance

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the KD-4, KD-10, KD-11 and KD-41 protective relays acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference I.L. 41-490D & 41-491.4N Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The KD relay designed by Westinghouse Electric Corporation (ABB). The KD compensator relay is designed where a polyphase four-pole cylinder relay unit is used for the 3-phase and another polyphase unit is used for the phase-to-phase unit. This allows the KD relay 3-phase unit to respond to 3-phase faults and the phase-to-phase unit to respond to phase-to-phase faults. Between these two units, one or the other unit will respond to any double-phase-to-ground fault, regardless of which pair of phases is involved. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the outputs OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

83

Relay Notes:

SETUP AND PROCEDURE For each test: Current source and monitor is assigned to the SR-90 utilized for the test. The test values are based upon a 75° maximum torque angle setting and open delta voltages. Jumper relay terminals 12 to 19 and 14 to 16 to 18. These terminals will remain jumpered throughout all testing of the KD relay. Test parameters for VA, VB, and VC are based upon a balanced open delta, using line-neutral voltages. This setup does not require the

84

operator to move the voltage test leads or subtracting 30° from the 3∅ maximum torque angle. Refer to I.L. which explains the differences in using line-neutral voltages versus line-line voltages along with specific internal schematic on KD relay under test for appropriate monitoring circuit of 3∅ and ∅ to ∅ tests. 3-Phase Reach Test


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

30

285°

60.0

VB

9

VB

30

210°

60.0

IA

13

18

IA

*

0°

60.0

MON

*

*

3 ∅ Reach Test 1. Connect monitor circuit from SR-90 to appropriate KD relay

terminals, (these terminal designators are dependent upon the internal schematic of the KD), to observe 3∅ contact operation.

2. Set EPS-1000 in Option Screen to Phase A Enabled and Phase B Enabled, Phase Sync. to External, Ganging A-B.

3. In Run Screen set Fault Mode with above stated voltage and phase angle values. Turn V and V ON. A B

4. Set IA on SR-90 equal to a current value 0.05 amps less than the calculated value of IA, (based upon the formula of Vf divided by Z).

5. Initiate SR-90 and ramp up or down until the 3∅ contact operates.


7. De-initiate SR-90 unit and EPS-1000 when test is completed.

85

Maximum Torque Angle Test 1. Connect monitor circuit from SR-90 to appropriate KD relay

terminals, (these terminal designators are dependent upon the internal schematic of the KD), to observe 3∅ contact operation.

2. Set EPS-1000 in Option Screen to Phase A Enabled and Phase B Enabled, Phase Sync. to External, Ganging A-B.

3. In Run Screen set Fault Mode with above stated voltage and phase angle values. Turn V and V ON. A B

4. Set IA on SR-90 equal to a current value 50% higher than the calculated value of IA, (based upon the formula of Vf divided by Z).

5. Initiate SR-90 and increase VA phase angle from 285° to ±30° to find θ1 and θ2 until the 3∅ contact operates.

6. Refer to the I.L. for determining the maximum torque angle. 7. De-initiate SR-90 unit and EPS-1000 whenever adjustment is

required and re-test. 8. De-initiate SR-90 unit and EPS-1000 when test is completed. A-B Maximum Torque Angle Test


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

30

195°

60.0

VB

9

VB

30

120°

60.0

IA

13

15

IA

*

0°

60.0

MON

*

*

B-C Maximum Torque Angle Test


CONNECT

VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

30

0°

60.0

VB

9

VB

105

278°

60.0

IA

15

17

IA

*

0°

60.0

MON

*

*

86

C-A Maximum Torque Angle Test


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

30

75°

60.0

VB

9

VB

30

0°

60.0

IA

17

13

IA

*

0°

60.0

MON

*

*

A-B Reach Test


CONNECT

VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

30

285°

60.0

VB

9

VB

30

210°

60.0

IA

13

15

IA

*

0°

60.0

MON

*

*

87

B-C Reach Test


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

30

195°

60.0

VB

9

VB

30

120°

60.0

IA

15

17

IA

*

0°

60.0

MON

*

*

C-A Reach Test


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

7

8

VA

30

75°

60.0

VB

9

VB

30

0°

60.0

IA

17

13

IA

*

0°

60.0

MON

*

*

88


IEEE Device Number: 40 Function: Loss of Field

This relay test sheet describes the use of the AVO Multi-Amp EPS-1000 test instrument to perform the KLF protective relays acceptance tests. Test connections to the AVO Multi-Amp EPS-1000 relay test set and manufacturer recommended relay settings are included. References: Manufacturer's Reference I.L. 41-748N Literature Test Equipment EPS-1000 Operating Manual Instructional Material Description of Relay The KLF relay is designed by Westinghouse Electric Corporation (ABB). The KLF is a single-phase relay connected to the ac side of asynchronous machine and contains three units connected so that the operation of two units sounds an alarm, warning of a low excitation condition. If the third unit operates, the trip circuit is energized. The relay consists of two-air gaped compensators. tow tapped auto transformers, one reactor, on cylinder type distance unit, directional unit with adjustable reactor, an under voltage unit with adjustable resistor, telephone relay and an indicating contactor switch. PRECAUTIONS ********************WARNING******************** Dangerous and potentially fatal voltage can be developed across the output terminals of the EPS-1000 relay test set. Refer to the EPS-1000 operation manual for further instructions. Always turn the source output OFF before connecting, removing or touching any output terminal or test lead, use extreme caution when turning on or using the EPS-1000 relay test set. ALWAYS TEST THIS RELAY IN ITS CASE.

Relay Notes:

89

90

SETUP AND PROCEDURE For each test: Current source and monitor is assigned to the SR-90 utilized for the test. Make the following tap settings to the KLF relay: TA = 11.5 TC = 2.55 SA = 2 SC = 1 MA = -.03 MC = -.09 TC link in middle block should be set for +TC direction. This setting corresponds to a ZA = 23.7Ω and ZC = 2.80Ω. Distance Unit (Z) Pick-up Test


CONNECT

VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

5

4

VA

80

270°

60.0

IA

9

8

IA

2

0°

60.0

MON

10

1

1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to test voltage at 270°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current I to 2.0 amperes. A4. Relay contacts should be open. Adjust the AC Control Knob on the

SR-90 until the relay operates at approximately ±3% of 2.25 amps. 5. De-initiate SR-90 unit and EPS-1000 whenever adjustment is

required and re-test. 6. De-initiate SR-90 unit and EPS-1000 when test is completed.


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

5

4

VA

80

90°

60.0

IA

9

8

IA

19

0°

60.0

MON

10

1

1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA to test voltage at 90°, initiate VA ON. 3. Turn SR-90 ON, set SR-90 current IA to 19.0 amperes.

91

4. Relay contacts should be open. Adjust the AC Control Knob on the SR-90 so IA until the relay operates at approximately ±3% of 19.0 amps.


6. De-initiate SR-90 unit and EPS-1000 when test is completed. Directional Unit (D) Pick-up Test


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

6

7

VA

1

347°

60.0

IA

9

8

IA

5

0°

60.0

MON

10

1

1. Set EPS-1000 in Options Screen to External Reference. 2. Set EPS-1000 VA at test voltage to 347°, where current leads the

voltage by 13°. The relay contacts should be closed. This is the maximum torque angle position.

3. Turn SR-90 ON, set SR-90 current I to 5.0 amperes. A4. Rotate the Rotary Knob on the EPS-1000 to increase the voltage of

VA to 120 volts and vary the phase angle of VA where the moving contact makes contact with the left-hand contact. These two angles (where torque reverses) should be 77° and 257° current lagging the voltage or concerning the I.L., 283° and 103° current leading the voltage, respectively. All phase angle accuracies should be within ±4°.

5. Record these values and refer to the instruction manual. 6. De-initiate SR-90 unit and EPS-1000 whenever adjustment is

required and re-test. 7. De-initiate SR-90 unit and EPS-1000 when test is completed. Undervoltage Circuit Test


VALUES

ASSIGN

±

N

TEST

∠

HZ

VA

5

4

VA

120

0°

60.0

MON

10

1

1. Set VA to 120.0 volts.

92

2. Initiate EPS-1000 and ramp the voltage down until the relay operates at approximately ±3% of 80.0 volts.

3. De-initiate EPS-1000.

93

Reactor Check 1. Set VA on the EPS-1000 equal to 120 volts ac, connect test leads

to relay terminals 6 and 7. 2. Initiate EPS-1000. 3. Using an external voltmeter measure the ac voltage from relay

terminal 6 to 4 and 7 to 4. These voltages should be equal to each other within ±1 volt. Telephone Relay Pick-up Test 1. Apply rated dc volts across relay terminals 10 and 3 using the DC

VERNIER source on unit 1 of SR-90. 2. The telephone relay (X) should open its contact. 3. Manually close the distance unit (Z) contacts and the directional

unit (D) contacts, with this simultaneous simulation the telephone relay (X) contacts should close.

4. De-initiate the SR-90 DC source.

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