motor drive ed 100 operating

8/12/2019 Motor Drive ED 100 Operating

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Motor Drive

Unit ED

Operating Instructions


http://slidepdf.com/reader/full/motor-drive-ed-100-operating 2/262 138/03/01/0


http://slidepdf.com/reader/full/motor-drive-ed-100-operating 3/263138/03/01/0

Contents

Contents

NOTE

Data contained herein may differ in small details from the motor drive unit delivered.We reserve the right to make alterations without notice.

1 General ...................................................................................................................................... 5

1.1 Safety instructions ............................................................................................................ 51.2 Specified application ........................................................................................................ 51.3 Function ........................................................................................................................... 61.4 Type designations ............................................................................................................ 6

2 Design ....................................................................................................................................... 7

2.1 Mechanical equipment ..................................................................................................... 72.1.1 Protective housing .............................................................................................. 72.1.2 Protective housing cover ..................................................................................... 72.1.3 Swing frame ........................................................................................................ 72.1.4 Hand crank.......................................................................................................... 72.1.5 Indication field ..................................................................................................... 92.1.6 Hand lamp........................................................................................................... 92.1.7 Control elements ................................................................................................. 92.1.8 Anti-condensation heater .................................................................................... 9

2.2 Gearing ............................................................................................................................ 102.2.1 Transmission gear............................................................................................... 102.2.2 Control gear ........................................................................................................ 102.2.3 Indicating equipment gear ................................................................................... 102.2.4 Position transmitter equipment ............................................................................ 112.2.5 Transmission gear, control gear, motor unit wiring .............................................. 112.2.6 Covering for transmission gear, control gear, motor unit ..................................... 11

2.3 Driving motor .................................................................................................................... 11

2.4 Electrical equipment ......................................................................................................... 122.4.1 Swing frame ........................................................................................................ 122.4.2 Position transmitter equipment ............................................................................ 122.4.3 Terminal rails ....................................................................................................... 13

3 Installation ................................................................................................................................ 14

3.1 Installing the motor drive unit onto the transformer tank ................................................... 14

3.2 Installing the drive shafts and the bevel gear.................................................................... 14

3.3 Coupling on-load tap-changer and motor drive................................................................. 14

3.4 Electrical connection of the motor drive ............................................................................ 17

4 Commissioning ......................................................................................................................... 18

4.1 Function test..................................................................................................................... 18

4.1.1 Preparations........................................................................................................ 184.1.2 Checking the step-by-step operation ................................................................... 184.1.3 Checking the end position switches and the protective device against

passage of positions ........................................................................................... 184.1.4 Checking the motor protective switch.................................................................. 18

4.2 Commissioning on site ..................................................................................................... 18



Contents

5 Transport ................................................................................................................................... 19

6 Maintenance ............................................................................................................................. 19

7 Special designs ........................................................................................................................ 20

7.1 Special designs based on on-load tap-changer features and operating conditions .......... 20

8 Appendix ................................................................................................................................... 21

8.1 Type designations ............................................................................................................ 21

8.2 Technical data: motor drive unit ....................................................................................... 21

8.3 Technical data: position transmitter equipment ................................................................ 22

8.4 Dimension drawings ......................................................................................................... 23



CAUTION

The motor drive unit may only be used to operate theon-load tap-changer/off-circuit tap-changer of thesame serial number. All safety devices have beenadjusted to this specific application.

It is the responsibility of the user to make sure that theequipment is used for the specified application only.For safety reasons, unauthorized work, i.e. installation,modification, alteration, electrical connection or com-missioning of the equipment must not be carried outwithout first consulting MR !The trouble-free operation of the motor drive, the on-load tap-changer/off-circuit tap-changer and thetransformer may be put at risk.

All personnel involved in installation, commissioning,

operation, maintenance or repair of the equipment must:- be suitably qualified and- strictly observe these Operating Instructions.

Improper operation or misuse can lead to

- a reduction in the efficiency of the equipment- damage to the equipment and property of the

user- serious or fatal injury.

Safety instructions in this manual are presented in threedifferent forms to emphasize important information.

WARNING

This information indicates particular danger to life andhealth. Disregarding such a warning can lead toserious or fatal injury.

CAUTION

This information indicates particular danger to theequipment or other property of the user. Serious orfatal injury cannot be excluded.

NOTE

These notes give important information on a certainsubject.

1 General

1.1 Safety instructions 1.2 Specified application

1

General

The motor drive unit ED is to be used exclusively for

operating on-load tap-changers and off-circuit tap-changers in regulating transformers as well as foroperating plunger-core earth-fault neutralizer.

CAUTION

All relevant fire protection regulations must be strictlyobserved.

Lock the motor drive unit using a padlock (not inclu-

ded) to prevent operation by unauthorized personnel.



The modular-designed motor drive unit ED works by

adjusting the operating position of on-load tap-changersand off-circuit tap-changers in regulating transformers tothe individual operating requirements (figs. 2, 3) .

The tap-change operation is activated by starting themotor drive.The on-load tap-changer is set according to the step-by-step operation principle. A single control pulse,triggered by MR voltage regulator for example, initiatesthe tap-change operation.This operation is alwayscompleted regardless of any other control pulsesemitted during the operating time. The next tap-changeoperation can only proceed once the control devices

have been adjusted to their rest positions.

Fig. 1 shows the sequence of a tap-change operation.

1

General

1.3 Function

1.4 Type designations

The various basic designs of the motor drive unit ED are clearly identified by explicit product definitions.

Type designation Description Types

ED 100-SM Product definition Electric Drive

ED 100-SM Type of transmission gear 100 = small transmission gear (motor, 6.5 Nm)

200 = large transmission gear (motor, 13/18 Nm)

ED 100-SM Type of protective housing S = small protective housing

L = large protective housing

ED 100-SM Special designs M = monitoring

C = plunger-core earth- fault neutralizer design

1

Motordrive

Tapselector

Diverterswitchoperation

Diverter switchcontact movement

33 sections

Winding

KHW 220from KHW 938



All control elements are installed in a closed swing-frame panel located behind the protective housingcover. This panel protects all electrical and mechanicalparts of the motor drive against accidental contact. Thehinges of the swing frame are designed to prevent theframe from banging against the base or cover.

The closed swing frame is attached to the protectivehousing by two spring-supported door bolts. The stan-dard design of the swing frame always opens to the left.

2 Design

2.1 Mechanical equipment2.1.1Protective housing

The motor drive unit ED is characterized by two main

features: its uniform construction for all motor drivedesigns and its modular drive concept.

The motor drive is available in two types of protectivehousing with the same arrangements for the attachmentpoints and the drive shaft (fig. 2 ED 100/200 S andfig. 3 ED 100/200 L ).The protective housing consists of two parts, the hous-ing and the cover, both of which are made of non-cor-roding cast-aluminium. They are finished with a one-layer prime coat (RAL 6019) and a one-layer finishingcoat (RAL 7033). The spaces between the housing andthe cover, as well as all apertures required for operation

(driven shaft, inspection window, aperture for handcrank in special arctic design, etc.), are thoroughlysealed to prevent splashes of water and dust fromgetting inside (IP 56).

The protective housing is ventilated by labyrinth vents,with metal filters on both sides of the housing. The bot-tom of the housing is made up of three plates providingentries for the cables.

2.1.2 Protective housing cover

In the standard design, the cover is attached to thebase by two hinges and it opens to the left. The stan-dard cover has an opening angle of 130°.There is a pocket attached to the inside of the protec-tive-housing cover to hold the connection diagrams.

CAUTION

When manually operating the motor drive unit onlyuse the built-in hand crank. Otherwise, there is a riskof serious or fatal injury.The safety switch in the hand crank disconnects themotor drive circuit at two poles; however, it does notdisconnect the control circuit.

2

Design

2.1.4 Hand crank

The hand crank is used to manually operate the motordrive in emergencies or for adjustment purposes. It isattached to the upper cover plate inside the protectivehousing.

WARNING

Before opening the swing frame the relevant safetyinstructions must be observed in order to avoidserious or fatal injury.

2.1.3 Swing frame

2 3KHW 914 KHW 915



9138/03/01/0

2.1.7 Control elements

The standard design contains the following controlelements mounted in the upper part of the swing frame(see fig. 4):

- Door contact for switching on the lamp

- Motor protective device

- Control switch “RAISE/LOWER“ to initiate a tapchange operation by hand.

2.1.8 Anti-condensation heater

2.1.5 Indication field

A clearly arranged indication field (fig. 5) is installed in

the upper part of the control panel cover (fig. 4).The data displayed and the displays are detailed asfollows:

- The mechanical operation counter shows the overall number of operations performed by the

motor drive

- The position indicator shows the position of themotor drive and the on-load tap-changer(standard, max. 35 positions)

- The two drag hands indicate the regulating rangecurrently used

- The tap change indicator shows the currentposition of the control cam (33 sections per tapchange operation)

Pointer and operations counter are mechanically drivenand indicate the switching sequence of the motor drive.

The reset-wheel on the operations counter is lead-sealed at the factory.

2.1.6 Hand lamp

There is a 4 W tubular fluorescent lamp (cable lengthapprox. 1 m long) inside the protective housing which isswitched on via a door contact (fig. 4, no.) when thedoor is opened.

0 3 9 90 0

L R

1514

13

12

11

8

10

9

7

6

5

4

32

1

16 1721

22

23

24

25

26

27

2829

30

31

32

33

201918

3435

2

Design

The anticondensation heater, fig. 4 (ED 100/200 S:50 W, ED 100/200 L: 60 W) is designed as a panelheater which also acts as the front cover of the swingframe.

NOTE

This new heater design:- is a complete anti-condensation

heater suitable for all climate regions exceptthe arctic.

- saves the need for an anti-condensation coat ifit has a MR-standard inside coat.

- does not require a thermostat or a hygrometer.

5 from KHW 934

4

7

5

6

CAUTION

Do not touch the panel heater as it becomes very hotduring operation.



2.2 Gearing 2.2.1 Transmission gear

Transmission gear, control gear and the gear for the

indicating equipment are located in the upper part of theprotective housing. They are protected against acci-dental contact by a cover plate.

The entire gearing system (fig. 6) is located behind theupper control panel in the upper part of the housing.The transmission gear is a low-noise, single-stage belt-type gear which has unchanging 16.5 revolutions(= 33 hand crank rotations) per switching operation.

The transmission is a wear-resistant belt.

It contains cam discs which are used to mechanically

trigger the cam switches. The modular-designed posi-tion indicator equipment and the additional cam-ope-rated contacts are driven by the control gear, the indi-cating equipment gear is driven by a cam shaft (fig. 8).

Electrical limit switches prevent overrunning of the endpositions. In addition to this, mechanical limiting devicesprevent tap change operations beyond the regulatingrange.

2.2.3 Indicating equipment gear

0 3 9 90 0

L R

1514

13

12

11

8

10

9

7

6

5

4

32

16 1721

22

23

24

25

26

27

28

29

30

31

32

33

201918

34

ATTENTION

The transmission gear belt must not come into contact

with lubricants.

2

Design

7 KHW 935

6 KHW 937

2.2.2 Control gear

The control gear (fig. 7) (step-by-step device with cam-operated contacts) is installed below the transmissiongear.

8 KHW 929

The indicating equipment gear (fig. 9) mechanicallyreflects the tap change operation on the indicator panel.

360282

0 3 9 90 0

L R

1514

13

12

11

8

10

9

7

6

5

4

32

1

16 1721

22

23

24

25

26

27

28

29

30

31

32

33

201918

3435

9 from KHW 937



2

Design

2.2.5 Transmission gear, control gear,

motor unit wiring

The transmission gear, control gear and motor unit arewired using black, flexible line material (1.5 mm2).The vibration-resistant plug connector for connectingthe swing frame wiring and the terminal rail wiring islocated below the gear unit block (fig. 10).

2.2.6 Covering for transmission gear,control gear, motor unit

The touch-protected covering of the transmission gear,

control gear and motor unit is provided with an openingfor the hand crank used for manual operation (fig. 11).

The covering is equipped with fixing clamps and hooksto hold the hand lamp and the hand crank.

10 KHW 929

11 KHW 933

MRMaschinenfabr ik Reinhausen

0 3 9 900

L R

1514

13

12

11

8

10

9

7

6

5

4

32

1

1617

2122

23

24

25

26

27

28

29

30

31

32

33

201918

3435

=1

33x

2.3 Driving motor

The ED motor drive is equipped with a three-phasemotor which covers a wide voltage range as well ascovering the 50/60 Hz frequencies. The motor unit isinstalled below the transmission gear.

The on-load tap changers and their correspondingmotor drive unit designs are listed in a separate selec-tion table.

2.2.4 Position transmitter equipment

The position transmitter equipment comprises:

- the position transmitter,

- the position transmitter module and

- a plug-in connecting cable.

The position transmitter is installed below the controlgear. The position transmitter module for the connectionby the customer is located on the terminal rails (fig. 13).



2.4 Electrical equipment 2.4.1 Swing frame

The electric equipment is mounted on the back of theswing frame (fig. 12). Mounting rails and clamping rails(some two-sided) allow for an easy installation ofcomponents.The individual devices are clearly marked with designa-tions for easier identification on the connection diagramkept in the pocket of the door.

In the standard design, the swing frame is equippedwith the following components:

- anti-condensation heating: designed as a panel heater (temperature increase in relation to ambient

temperature by ∆T ≈ 7 K)

- motor protection with trip coil

- control switch for RAISE/LOWER control

- contactors for RAISE/LOWER- auxiliary contactor for step-by-step operation

- door contact for hand lamp

The cable connection bundle between the swing frame

and the terminal rails has a zip and a strain relief device

on both sides.

2

Design

2.4.2 Position transmitter equipment

In the standard model, the following designs of the

position transmitting equipment are available:

- resistor-type position transmitter device

- N/O contact position transmitter device

- break before make-type

- make before break-type

M R

M a s c h i n e n f a b r i k

R e i n h a u s e n

360282

1 33

4

32

30

3132

1

0 3 9 90 0

KHW 93612



The terminal board facilitates an easy electrical connec-

tion of the motor drive unit (fig. 13).

2

Design

The wiring is easily connected using vertically

arranged clamping rails and terminal bars.

1 - cable entries(closed by 3 bottom plates)

2 - terminal bar X13 - cable duct4 - clamping rail5 - position transmitter module6 - connection bundle

swing frame – terminal rails7 - connection bundle

terminal rails - transmission gear, control gear,motor unit

MR

M a s ch i n enf a b r i k

R ei nh a u s en

MR

M a s ch i n enf a b r i k

R ei nh a u s en

M R


R e i n h a u s e n

M R


R e i n h a u s e n

6 5

4

3

2

13 KHW 939

7

1

2.4.3 Terminal rails



The motor drive unit is installed using 4 stud bolts (not

included in MR delivery) attached to the transformertank. The necessary drill holes are located outside onthe brackets of the protective housing. The drill holearrangement in all ED motor drive designs is identical.

For correct attachment of the 4 stud bolts onto thetransformer tank see the dimension diagram in para-graph 8.4.

If the transformer causes extremely strong mechanicalvibrations, the use of vibration absorbers (not includedin MR delivery) is recommended.

3.2 Installing the drive shafts and the bevelgear

Further information on attaching these drive com-ponents can be found in the Operating Instructions No.

BA 42.

3.3 Coupling on-load tap-changer andmotor drive

The above-mentioned requirements are met by settingthe time at which the diverter switch operation occurs1.5 - 2 sections before the grey area of the tap changeindicator (fig. 14) .

The centre mark in the grey field of the tap-changeindication will be used as reference for followingprocedures.

One tap-change operation is represented by onerotation of the pointer on the tap change indicator. Thisindicator is divided into 33 sections where one sectioncorresponds to one rotation of the hand crank.

The number of sections from the beginning of thediverter switch action until the pointer reaches the

centre mark of the resting range should be equal in bothdirections.

5

26

27

3

Installation

CAUTION

Make sure that the diverter switch/selector switchcompletes the tap-change operation before the motordrive stops by correctly coupling the motor drive to theon-load tap-changer and also ensuring that the po-sition indication of the on-load tap-changer and themotor drive are the same for each operating position.These measures can prevent damage to the motordrive, on-load tap-changer and the transformer.

from KHW 93414

Resting rangeof the motor drive

Centre mark

CAUTION

The motor drive’s protective housing must not bewarped or deformed in any way when fixing it to thetransformer tank.Make sure the motor drive is mounted vertically andthat its driven shaft is correctly aligned with thevertical drive shaft of the bevel gear in order toprevent damage to the motor drive, the on-load tap-changer and the transformer.

3 Installation

3.1 Installing the motor drive unit onto thetransformer tank



3

Installation

Carry out any adjustment work by manual operation only.

Attach the hand crank in the motor drive to the shaft end located in the uppercover plate. This activates a safety switch which disconnects themotor drive at two poles.

Make sure the on-load tap-changer and the motor drive are in their adjustmentpositions before commencing any adjustment work.When adjusting, make sure the position indicators

on the on-load tap-changer and on the motor drive are identical.

Couple the motor drive and vertical drive shaft bymounting the coupling brackets.

Turn hand crank in one direction until the diverter switch operation begins.When operating the motor drive manually, observe the tap changeindicator which mechanically reflects the progress of the tap-changeoperation.

Once the diverter switch operation begins, turn the hand crank in the

same direction while counting the sections required for the pointer to reachthe centre mark of the tap-change indicator.Note the determined value A and the direction of rotation.The tap-change operation is completed.

Procedure Example

A = 5 s

e c t i o

n s

A slight asymmetry of a max. of 1 section is per-

missible. To obtain a symmetrical coupling, proceed asfollows:

WARNUNG

Before starting any coupling work make sure that themotor protective switch is tripped to prevent anunintentional start of the motor drive.

Centermark

Instant of diverter

switch operation

➙➙➙➙➙➙➙➙➙➙



Procedure Example

B = 3 s e c t i o n s

3

Installation

Turn the hand crank in the opposite direction, until the diverterswitch operation occurs.

Rest position

(centre mark)

Instant of

diverter switch

actionCount the remaining sections from the time the

diverter switch operation occurs until the pointer reachesthe centre mark of the tap-change indicator.Note the determined value Band the direction of rotation.

If the values obtained for both directions are identical, the on-load tap-changerand the motor drive are correctly coupled.

As a control measure, carry out several tap-•change operations in both directions.

If the values for A and B are not equal, proceed as follows:

Determine the correction value Cby dividing the difference between Aand B by 2.

Uncouple the motor drive and the vertical drive shaftby removing the coupling brackets

Operate the motor drive using the hand crank in direction of the highervalue, either A or B by the number of sections on the tap-change indicationwhich equals C.

Re-couple the motor drive and the on-load tap-changer, and check the coupling using theabove procedure.

Make sure that the pointer of the tap-change indicator is in centre position within thegrey field once the manual operation is finished.

Check the coupling after adjustment work by carrying out a few tap change operations in both directions.Check that the operating positions of the on-load tap changer and the motor drive are identical.

C =A - B

2

A = B



3

Installation

3.4 Electrical connection of the motor drive

Connect the motor drive to mains supply according tothe connection diagramm in pocket of the swing framedoor (fig. 4). The standard terminal block (fig.15) on theterminal rail X1 illustrated in fig.13 is used for thispurpose.

WARNING

Before connecting the motor drive to the mainssupply, the relevant safety instructions must beobserved in order to prevent serious or fatal injury.

Terminal bar X1

15



4

Commissioning

4 Commissioning

4.1 Function test 4.1.1 Preparations

Phase sequence testWhen checking the motor circuit voltage, make surethat voltage applied to the connecting terminals has aclockwise phase sequence.

4.1.2 Checking the step-by-step operation

- Initiate a tap change operation by turning thecontrol switch S3 (fig. 19) and keeping it turnedwhile themotor drive is in operation.

- Check that the motor drive switches off automatically

after performing one tap-change operation and thatthe pointer of the tap-change indicator stopswithin the grey field.

- Carry out this test in both directions.

4.1.3 Checking the end position switches

and the protective device againstpassage of positions

- To check the end position switch, operate the motordrive to the penultimate position by turning thecontrol switch S3. Using the hand crank, manuallyoperate the motor drive to its end position.

- Check that when the S3 switch is turned further inthe same direction the motor drive does notcontinue to operate.

- Using the same procedure, operate the motor driveto the other end position and repeat the abovecheck.

Check that the pointer of the tap-change indication is in

the grey field.To check the protective device against passage ofpositions, operate the motor drive using the hand crankwhile the motor protective switch is activated.Check that the motor protective switch trips after a max.of 3 sections.

4.1.4 Checking the motor protective switch

Check the tripping function of the motor protectiveswitch Q1 (fig. 19) by pressing the test button.

4.2 Commissioning on site

The function tests as per 4.1 are to be repeated beforethe transformer is commissioned.

CAUTION

In case of a longer period before commissioning or ashut down period of more than 8 weeks, the heater ofthe motor drive unit should be connected andoperated.

WARNING

The function test must be performed with the supplyvoltage connected. Make sure that the on-load tap-changer completes the tap-change operation beforethe motor drive stops by properly coupling the motordrive to the on-load tap-changer. Also ensure that theposition indications of the on-load tap-changer andthe motor drive are the same for each operatingposition. These measures can prevent damage to themotor drive, the on-load tap-changer and the trans-former.The relevant safety instructions must be strictlyobserved to prevent serious or fatal injury.

CAUTION

Electrical mains supply

Make sure that the mains supply fulfils all theconnection requirements of the motor drive unit.

WARNING

Under no circumstances is the transformer to becommissioned, if the devices described in 4.1 do notpass the function test. Otherwise serious or fatalinjury may result.

EMERGENCY STOP

S 3Q 1S 10

LOWER RAISE

MR Maschinenfabrik Reinhausen

1 20SIEMENS

from KHW 93019

Motor protection



5 Transport

If it is neccessary to remove the motor drive for trans-

porting the transformer, proceed according to section 3of these Operating Instructions when re-installing theunit.

Transport 5

Maintenance 6

NOTE

To prevent damage to the motor drive unit duringtransportation use the packing material provided bythe MR delivery.If the motor drive has to be removed for transporting

the transformer from the factory to the site of opera-tion, operate the on-load tap-changer and the motordrive to adjustment positions beforehand.Reinstall the motor drive according to section 3 ofthese Operating Instructions.

6 Maintenance

The ED motor drive unit does not require regular main-

tenance. However, if used with industrial transformers,our Technical Service department must be contactedafter the unit performs 500.000 tap-change operations.

We recommend that the following control checks becarried out on the motor drive unit during routinetransformer inspections:

- checking that the sealing of the protective housing iswater-proof,

- checking that the built-in electrical heater isfunctioning trouble-free,

- checking the exterior condition of the equipmentinstalled in the motor drive

When inspecting the on-load tap-changer, also carry outa functional test of the motor drive according to 4.1.

WARNING

The control checks must be performed with thesupply voltage connected.

The relevant safety instructions must be strictly

observed. Failure to do so can lead to serious orfatal injury.



7 Special designs

7

Special designs

The standard design of the ED motor drive unit can be modified to accommodate specific operating requirements.

7.1 Special designs based on on-load tap-changer features and operating conditions

Feature Special design in the motor drive

Number of mid-positions of on-load tap-changer >1 Automatic passage of positionsDevice for automatic passage of positions through

one or more operational positions

On-load/off-circuit tap-changer with specified Monitoring of drive shafts and tap-change operationstap-changer monitoringOn-load tap-changer type M-delta;off-circuit tap-changer type U, UR

On-load tap-changer type VT Recovery time delay (60 s)

On-load tap-changer with change-over selector for Monitoring of drive shafts, tap-change operation andstar-delta change-over operation star-delta change-over operation

Furnace and electrolysis operation Additional input terminals for operation without step-bystep switchPossibility to install position indication modules withN/O contact range, 10 A (make-before-break) for thecontrol of external current matching transformers.

Thermoswitch for on-load tap-changers Measuring amplifier with break contact for thecontrol circuit

Higher max. number of operating positions Control gear + position indicator for71 operating positions

Control gear + position indicator for107 operating positions

Special on-load tap-changer arrangement

AB-arrangement Control gear for AB arrangement,operating time = 2,7 s

ABC-arrangement Control gear for ABC arrangement,operating time = 1,8 s

Temperature range < -30 °C Externally-located control elements,main switch for disconnecting all circuits exceptthe heating circuitthermostatically-controlled additional heater



8

Appendix

8.2 Technical data: motor drive unit

The technical data is relevant to the standard design and may vary depending on the design delivered. It is subjectto change without notice.

8 Appendix

8.1 Type designations

Type designation Description Types

ED 100-SM Product definition Electric Drive

ED 100-SM Type of transmission gear 100 = small transmission gear (motor, 6,5 Nm)

200 = large transmission gear (motor, 13/18 Nm)

ED 100-SM Type of protective housing S = small protective housing

L = large protective housing

ED 100-SM Special designs M = monitoring

C = plunger - coil earth-fault neutralizer

Motor drive ED 100/200-S/L

Motor torque 6.5 Nm 13 Nm 18 Nm

Voltage 3 AC/N 230/400 V

Current 1.9 A 5.2 A 6.2 A

Frequency 50 Hz

Synchronous speed 1500 1/min

Rotations of the drive shaft per tap-change operation 16.5

Duration of the tap-change operation approx. 5.4 s

Rated torque of the drive shaft 45 Nm 95 Nm 130 Nm

Rotations of the hand crank per tap-change operation 33 54

Max. number of operating positions 35

Control and heater voltage AC 230 V

Power input of the control circuit(control / operation) 100 VA/25 VA

Heating power 50 W for the ED 100/200 S – 60 W for the ED 100/200 L

Temperature range (ambient temperature) -30°C to +50°C

Test voltage to ground 2 kV

Weight ED 100 S: 80 kg ED 200 S: 80 kgED 100 L: 130 kg ED 200 L: 130 kg ED 200 L: 130 kg

The various basic designs of the motor drive ED are identified by clear product definitions.



8

Appendix

8.3 Technical data: position transmitter equipment

Resistance-type position transmitter

Standard resistance: 10,0

(0,6 W, +/-1 %) per stepThe maximum load on the module is determined by the number of resistors loaded und and can be inferred from thecapability curve below. The permissible supply voltage is calculated from these power ratings and the total resis-tance value. However, the supply voltage should not exceed DC 220 V.

N/O contact position transmitter (break-before-make contact)AC: 250 V, 0.5 A (ohmic load)

DC: 220 V, 0.5 A (ohmic load)Minimum voltage level for signal and data processing: 24 V

N/O contact position transmitter (make-before-break contact)AC, DC: 250 V, 0.02 A (ohmic load)AC, DC: 24 V, 0.20 A (ohmic load)

N/O contact position transmitter, 10 A (make-before-break contact) for controlling current matchingtransformer in industrial applications.AC/DC: 250 V, 10 A (ohmic load)AC, DC: 24 V, 10 A (ohmic load)

Position transmitter, diode matrixDC: 220 V, 0.5 A (ohmic load)

Load on the resistance-type position transmitter

Permissible load in relation to the number of resistors

l o a d o n t h e m o d u l e [ W ]

Number of resistors loaded

4.5

4

3.5

3

2.5

2

1.5

1

0.5

0

5



8

Appendix

8.4 Dimension drawings

Vertical guard platewith spacing ring

Hand crank

Wall of transformer tank

3 dummy plates

Shim

Attachment of protective housing

ca. 690 if opened 130°

ca. 864 if opened 180°

The cover can be opened to the left

or to the right depending on the

arrangement of the hinge pins

Aperture of fixing holes on protective housing

(rear view)

Aperture in protective housing for cables

(underside view)

1 1 8 9 *

4 5 4 *

* for design with

intermediate bearing

Motor Drive ED-S898 801:1E

Protective Housing

motor drive ed 100 operating

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