N-Series 0

three phaseautomatic circuit recloser

Introduction and features0

The Nu-Lec Industries N-Series automatic circuit recloser (also known as a circuit breaker) provides the features of traditional reclosers, plus the benefits of up to date design optimised for automation, remote control and monitoring, now and in the future.The development of this product was driven by customer demand for improved return on capital investment in the distribution network. After carefully evaluating customers’ needs, the N-Series reclosers were developed to achieve optimum performance and reliability, making use of the latest in available technology in vacuum arc interruption, communications and microelectronics. The result is the N-Series automatic circuit recloser, a competitive world-class product of which we are justly proud.In the past, distribution equipment such as reclosers have been purchased only to support load growth. Today, your customers, the electricity consumers, are demanding reduced outages and lower tariffs. We at Nu-Lec Industries are continually working to provide advanced equipment needed for tomorrow’s competitive electricity distribution system.By using this technologically advanced equipment, operating costs will be reduced and capital works can be deferred through better management of existing plant. In addition customer revenue lost due to outages will be reduced.In addition to automatic circuit reclosers, the Nu-Lec Industries family of switchgear includes a range of remotely controlled and monitored pole mounted load break switches and sectionalisers as well as remote control and monitoring software. This product family is a complete solution for distribution system automation.

Reduced purchase costb Remote Terminal Unit (RTU) and a range of communication ports are included in the standard equipment. No additional RTU, modem, power supplies, batteries or enclosures are required. b A 400A cable connection kit is provided as part of the standard package. Optional 250A, 630A and 800A cable kits are also available.

Reduced installation costsb Lightning arrester mounting, up to 800A cable tail kit and pole mounting brackets are provided in the standard package. An optional Voltage Transformer (VT) for auxiliary supply is available.b Configuration of the unit is from the Operator Control Panel (OCP), making commissioning simple. b These automatic circuit reclosers are ideally suited as low cost feeder circuit breakers in outdoor primary substations. In this application, connection into the substation control system is simple and low cost.

Reduced operating costsb The integral protection relay provides fast isolation of faults, reducing damage.b The recloser constantly monitors line current and voltage without the need for additional measurement devices. This data can then be used for forward planning and optimisation of existing feeders.b Long lifetime, low maintenance equipment reduces lifetime cost.

DSA/SCADA compatibilityWhen used with a compatible Distribution System Automation (DSA) or SCADA system, Nu-Lec Industries automatic circuit reclosers support remote control and monitoring to provide the following advantages:b Information on recloser status and fault current values transmitted to system control allows fast location of the faulted line section, reducing the travelling time of line crews.b This same information allows informed remote switching which reduces the affected area and quickly restores supply.b Reclosers can be configured and settings managed from system control, without technicians having to visit each individual recloser in the field, with a consequent reduction in travelling time and improved system integrity.

Increased customer satisfactionb Supply can be quickly restored to fault-free areas, resulting in reduced customer minutes lost.

Deferred capital worksb Remotely controlled and monitored reclosers give an improved knowledge of a system and provide better system control. Feeder and substation load can then be remotely managed improving utilisation of existing plant. Purchase of new plant can then most likely be deferred for a considerable period of time.

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Circuit breaker overview and operation

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The N-Series automatic circuit recloser is designed around vacuum interrupters contained in a fully welded and sealed 316 marine grade stainless steel enclosure. The enclosure is filled with sulphur hexafluoride (SF6) gas, which has excellent electrical insulating properties, resulting in a compact and low maintenance device.

The N-Series circuit breaker is controlled by either the pole mounted Advanced Controller (ADVC) or the Pole Top Control Cubicle (PTCC). This booklet describes the features when the N-Series is used with an ADVC. Please see the separate booklet for PTCC features. Enclosed in a 316 marine grade stainless steel enclosure the ADVC provides an Operator Control Panel (OCP) and electronic controller that monitors the circuit breaker and provides protection, measurement, control and communication functions. A detachable control cable is used to connect the controller to the circuit breaker. Combined together, the circuit breaker and ADVC form a remotely controlled and monitored automatic circuit recloser.The circuit breaker is operated by sending a controlled pulse of current from a storage capacitor in the ADVC through a solenoid. This attracts the mechanism plate which in turn closes the contacts in the vacuum interrupter. The contacts are held in the closed position by latch tongues resting on the trip bar.Opening of the contacts is achieved by releasing a controlled pulse of current from a capacitor through the trip coil. This attracts the trip bar armature, turning the trip bar and releasing the latch. The opening spring and the contact pressure springs accelerate the contacts open. A flexible connection is provided to allow movement of the contacts to occur.Epoxy bushings insulate the main circuit conductors from the tank and provide a double “O” ring seal. They also provide the necessary insulation and support for the embedded capacitive voltage transformers (CVT) and for the current transformers (CT). The bushings are DIN 47 636 (threaded option) and allow the connection of alternative cable connection elbows if desired. Lightning arrester mounting is provided for installation convenience. A standard kit for field fitting is supplied with the circuit breaker. It contains Silicone bushing boots and 3 metre lengths of 185 mm² aluminium insulated water tight cable tails rated at 400A. This arrangement results in a recloser suitable for connection into an insulated conductor system, or a bare conductor system, as appropriate. The fully insulated system provides freedom from faults caused by birds and other wildlife. An auxiliary voltage supply of 110, 220 or 240 volts AC is required to power the unit. Where this is inconvenient, a voltage transformer can be provided as a purchase option. The ADVC is connected by a control cable to the bottom of the circuit breaker through a rubber covered plug/socket arrangement.A clearly visible external pointer shows the contact position. The recloser can be tripped from the ground by a hookstick. It can then be locked out by opening the isolating switches located on the Operator Control Panel. These switches are physically connected in series with both the Trip and Close solenoids.The ADVC interfaces to the recloser via the control cable and connects to the Switch Cable Entry Module (SCEM) in the base of the tank. The SCEM uses non-volatile memory to store all relevant calibration data, ratings and number of operations. The SCEM also provides the first stage of electrical isolation and shorting electronics to short the CTs and CVTs in the event the control cable is disconnected while current is flowing through the recloser.Cross section of circuit breaker

Legend1 Cable tails2 Current transformer3 316 grade Stainless

steel tank4 Gas filled tank5 Flexible connection6 Closing solenoid7 Opening spring8 Mechanism plate 9 Switch Cable Entry

Module (SCEM)10 Cable entry cover11 Cable to control cubicle12 Silicone bushing boot

13 DIN 47 636 bushings14 Capacitive Voltage

Transformer (CVT)15 Lightning arresters

and mountings16 Vacuum interrupter17 Contacts18 Pushrod19 Contact pressure spring20 Latch21 Trip bar22 Trip bar armature23 Trip Coil24 Manual trip lever

N-Series circuit breaker

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Controller overview0

The advanced protection, data logging and communications abilities of the N-Series recloser are made possible by the technology housed in the ADVC. It has been designed especially for outdoor, pole mounted operation and is normally mounted low on the pole for ease of access by operating personnel.

The cubicle is insulated and designed to minimise any temperature rise resulting from solar heating. A 316 marine grade stainless steel enclosure is used to mount the Control And Protection Enclosure (CAPE), Power Supply Unit (PSU), customer accessories and Operator Panel. These modules are carefully located so that the batteries at the bottom keep cool. In this way battery life of 5 years 1 can be achieved. All weather access is provided to the Operator Control Panel through a lockable hatch in the front of the control cubicle. Vents are screened against vermin entry and the door is sealed with a rubber gasket. All electronic parts are enclosed in sealed modules which protects them from entry of moisture and condensation ensuring a long lifetime.The standard version of the ADVC is suitable for climates where the temperatures rarely go above 50°C and occasionally go below -5°C, with a lower limit of -10°C.The extended model provides heating to the batteries and has a temperature range of -40°C to 50°C. The ADVC incorporates the functions of a multi-function protection relay, a circuit breaker controller, a metering unit and a remote terminal unit. A built-in microprocessor controlled power supply provides uninterrupted operation of not only the circuit breaker and ADVC, but also the communications radio or modem. These accessories are connected to a built-in user progammable radio power supply. Therefore no other power supplies are required for connection into your SCADA or Distribution Automation System.Due to careful design the efficiency of all parts is extremely high, allowing a battery hold up time of up to 52 hours after auxiliary supply failure (from fully charged battery, excluding telemetry radio or modem usage). The architecture used has the advantage that the circuit breaker operation is independent of the high voltage supply, relying on a set of batteries charged by the auxiliary supply.Due to sophisticated power supply management techniques, a circuit breaker operation is always guaranteed when attempted and alarms are raised over the telemetry when auxiliary power is lost.Communications equipment can be mounted within the Advanced Controller cubicle. A V23 FSK modem, RS232, RS485 and Ethernet TCP/IP are provided as standard to support all of your communications needs.

(1) Battery replacement interval is influenced by environmental temperature.

Advanced Controller cubicle

Operator Control Panel swivels out and the customer compartment tray can be moved forward to ease access to communications equipment.

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Modular design0

A marine-grade stainless steel cubicle houses the three main modules and customer compartment of the Advanced Controller. The cubicle is ventilated to help cooling and contains insulation against radiant heating. System health checks, trip circuit monitoring and an IP65 design ensure excellent reliability.

Operator control panelThe Operator Control Panel (OCP) is mounted in the door of the cubicle. Access is through a hatch in the door or, when the door is open, by swivelling the panel away from the door. The menu driven Control Panel provides access to the system status, event log, measurement, protection, automation and communication parameters. A computer port is provided for local control, configuration and data retrieval using the WSOS program.

Customer compartment

Located at the top of the cubicle is the large Customer Compartment. It provides ample mounting space for modems, radios, Input/Output expanders and other customer accessories. During installation it is possible to move the accessory tray to a bracket at the front of the cubicle, making installation and commissioning much easier.

Control and protection enclosure

At the centre of the cubicle is the Control And Protection Enclosure (CAPE). The sealed unit incorporates the switchgear controller and all the control, protection, measurement and communication functions. All the connections are easily accessible. Standard DB9, RJ45 and RJ11 terminations eliminate customised communication cables making installation and commissioning very easy.

Power supply unitThe Power Supply Unit (PSU) and its batteries are located at the bottom of the cubicle. A built in, microprocessor controlled power supply provides uninterrupted power to the switchgear, protection relay and communication devices. A customer auxiliary supply terminates in the PSU and is used to charge the batteries. The battery location on top of the power supply provides easy access for maintenance.

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Block diagram & features0

The Nu-Lec Industries automatic circuit reclosers provide many outstanding advantages to the user. New and innovative features have been made possible by the intimate way the pole mounted circuit breaker and control cubicle work together. The block diagram below shows how the two items are interfaced.

Special extended range current transformers provide a range from 1A to 16,000A for measurement and protection. Embedded voltage screens accurately image the primary voltage value and phase relationship, at the analogue front end, allowing measurement of voltage, current, power factor and frequency in the electronic module.Each recloser is provided with an Operator Control Panel which has a four line liquid crystal display with back lighting for night operation. From here a user can access and program the many measurement and protection features available.Three levels of user interface are available with the Operator Control Panel and Laptop computer. These are as follows:1. Operator levelThis allows basic operation like Trip, Close and display of settings, such as:b Protection settings and fault historyb Line measurements and historical datab Recloser functions such as:

b Alarms/Status such as:v Auxiliary supply failv Battery supply failv Lockoutv Gas loss2. Technician levelThis level is password protected at the user’s discretion in the “Engineer Level” and allows the setting of all protection related parameters.3. Engineer levelThis is accessible through a laptop or desktop computer only and allows advanced customisation of the Operator Panel, setting of passwords, and all the Operator and Technician Level functions.

Telemetry interfaceThe Nu-Lec Industries automatic circuit recloser can be interfaced to your SCADA system either through its built-in V23 modem and a radio, or its RS232 ports and a modem of your choice, RS485 and Ethernet TCP/IP are also available. A variable voltage uninterruptable power supply is included for the radio or modem, which can be mounted inside the communications cubicle. Many telemetry protocols can be supported. DNP3 and IEC 60870-5-101 are examples of the available protocols.

Computer interfaceWSOS is an advanced personal computer based software package to allow off-line and on-line programming, monitoring and control of a recloser via the RS232 port or Ethernet.

Remote controlThe ADVC offers an impressive list of communication ports for use in remote control applications:b 1 x RS232;b 1 x Ethernet; andb Any combination of three of the ports listed below:

- 3 x RS232- 1 x RS485- 1 x V23

As an additional option, Nu-Lec Industries offers the WSOS multiple connect feature that allows the software package to individually remote control and monitor a population of reclosers. The system communicates with the control cubicle by either cable, fibre optic, telephone line or radio. WSOS provides additional features such as alarm and event handling, dial in and dial out facilities and report generation.

Advanced Controller block diagram

Basic Display Unit (BDU)

v Remote control ONv Local control ONv Sensitive Earth Fault ON/OFFv Earth Fault ON/OFFv Auto reclose mode ON/OFFv Close/Trip ISOLATE

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WSOS Version 50

WSOS is the Nu-Lec Industries Switchgear Operating System software based on Microsoft Windows®. It provides easy access to all switchgear functions from opening/closing, through configuring protection and communication parameters to accessing measurement and analytical data. By using a desktop or portable PC engineers can manage a large number of reclosers either remotely via a communications link or locally via a serial port or Ethernet connection.

WSOS Version 5 integrates Nu-Lec Industries field proven Windows based switchgear operating system and its powerful features and tools, developed over many years, into a modern desktop. The desktop includes the Switchgear explorer to organise your switchgear the way you like it and the Launch pad for handy links to online help, getting started, updates and much, much more. Controlling, configuring and accessing valuable switchgear data from a local or remote location is now even easier than before.

Local and remote controlb Switchgear operation.b Protection group selection.b Protection group copy.b NPS on/off/alarm control.b Auto reclose, earth protection and SEF on/off control.b Work tag, low gas and dead lockout on/off control.b Configurable Input/Output Expander (IOEX).b Configurable quick keys.b Configurable delay for local Open and Close operations (Hit and run).b Configurable SCADA protocols:

- DNP3.0 is included as standard.

Communication optionsb Local RS232 port connection.b Radio modem.b GSM / PSTN modem.b DNP3 virtual terminal object.b TCP/IP.b Communications output capture.

Measurement screensb Three-phase, earth and sequence current.b Phase voltages:

- Phase - phase,- Phase to earth, and- Sequence voltages.

b Phase live/dead indication.b Apparent, reactive & real power:

- Total, and- Per phase.

b Power factor.b Signed or unsigned power.b Frequency.b Power quality toolkit.

- Waveform capture.- Harmonics.

Credit noticeWindows is a registered trademark of Microsoft Corporation in the United States and other countries.

Example of the WSOS desktop

Switchgear explorer window

Launch pad provides links to frequently used features and online help

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Advanced protection features

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Directional blockingDirectional blocking is a protection feature that restricts tripping on faults to a designated side of the recloser. It prevents nuisance tripping if particular network conditions are causing “false” earth faults. In radial systems Directional Blocking prevents nuisance tripping by blocking faults in the source direction and only responding to faults in the load direction.

Directional protectionDistinct protection for faults in the forward and reverse direction. A forward fault may use a different time-current curve and settings to a reverse fault (i.e. these are individually selectable). Both the forward protection and reverse protection are operating at the same time.

Live load blockingLive load blocking prevents a recloser from closing if any of the load side terminals are live.

Dead lockoutDead lockout prevents a reclose unless one or more of the source side or load side terminals are live. If all terminals are dead then the controller goes to lockout.

Loss of phaseLoss of phase protection trips the recloser if phase-earth voltage on one or two phases falls below a set voltage threshold for a set length of time.

Multiple protection groupsThe ADVC supports up to 10 Protection Groups, each of which can be configured with completely separate protection characteristics with different inverse time curves and setting currents. The number of protection groups available to the operator can be configured using the Windows Switchgear Operating System thereby restricting or enabling access to protection settings as required.

Automatic protection group selectionAutomatic Protection Group Selection is used to change the protection group depending on the direction of power flow. This allows the recloser to be correctly graded with devices downstream regardless of the power flow direction.

WSOS offers a quick, easy way to configurethe protection groups.

b Live Load Threshold Voltage range: 2 - 15kV

b Threshold voltage range: 2 - 15kVb Voltage resolution: 1Vb Time range: 0.1 - 100 secb Time resolution: 0.1 sec

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Advanced protection features

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Inrush restraintInrush restraint raises the phase and earth threshold currents for a short period of time to allow for short duration inrush currents when closing onto a load.

Cold load pick-upCold load pick-up allows for a loss of diversity when a load has been without supply for a period of time.

Under / over frequency protectionThis feature trips the recloser when the system frequency exceeds the under and over frequency trip threshold values.

Loop automationOptional Loop Automation software can be purchased at the time of your order or it can be upgraded at a later stage.Loop Automation is a Distribution System Automation (DSA) scheme that will restore supply to fault-free sections of a network if they have been disconnected because of a fault in another section of the network. Loop Automation can also restore the normal network configuration automatically when the faulted section is repaired.The distributed intelligence embedded in the reclosers operates the scheme without communications or operator intervention by using the built-in voltage detection ofNu-Lec Industries reclosers.

Sequence ComponentsNegative, positive and zero phase sequence currents and voltages can be monitored and logged.In addition, the negative phase sequence current protection can be used for detection of low-level phase-phase faults in the presence of high level three phase loads. Inverse Time, Definite Time and Instantaneous operation is available.

b Multiplier range: 1 - 30b Multiplier resolution: 0.1b Time range: 0.05 - 30 secb Time resolution: 0.05 sec

b Multiplier range: 1 - 5b Multiplier resolution: 0.1b Time Constant range: 1 - 480 min.b Time constant resolution: 1 min.

b Frequency tripping range: 45 - 65 Hzb Frequency calculation: Once per cycle over a two

cycle periodb Number of under/over frequencycycles before tripping:

2 - 1000

b Accuracy: ±0.05Hz

Under / over frequency protection

b Setting current range: 10- 1260 A

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General protection features0

Operating SequenceReclose times are individually selectable. The operating sequence is defined by:

Reclose times

Sequence reset time

Trips to LockoutOvercurrent and fault trips to lockout are selectable between 1 and 4. A separate setting is available for Sensitive Earth Fault and Negative Phase Sequence.

Inverse time curvesThe ADVC offers a total of 48 user selectable inverse time protection curves. These are:

Instantaneous protectionInstantaneous protection works by tripping the recloser if the line current exceeds the Instantaneous Multiplier x Setting Current.

Definite time protectionDefinite Time is an alternative to Inverse Time protection. It works by tripping the recloser at a fixed time after pick-up.

Sensitive Earth Fault (SEF)SEF causes the recloser to trip when the earth current rises above a set level for longer than the set time.

Sequence CoordinationSequence Coordination allows a recloser to keep its trip sequence in step with another recloser downstream.

Inverse time curves

Modified curve

O - 1st rt - CO - 2nd rt - CO - 3rd rt - CO where rt = reclose time.where O = open.where C = close.

b 1st Reclose Time range: 0.5 - 180 secb 2nd Reclose Time range: 2.0 - 180 secb 3rd Reclose Time range: 2.0 - 180 secb Timing resolution: 0.1 sec

b Sequence Reset Time: 3 - 180 secb Timing resolution: 1 sec

b Three IEC60255 curves: Inverse,Very Inverse andExtremely Inverse.

b Three IEEE C37.112 Inverse Time curves: Moderately Inverse,Very Inverse andExtremely Inverse.

b 42 Non Standard Inverse Time Curves: Refer to the Operating Manual for a full listing.

b Multiplier range: 1 - 30b Resolution of setting: 0.1b Max effective setting: 16kA

b Setting current range: 10 - 1260Ab Definite time resolution: 0.1 secb Definite time range: 0.5 - 100 secb Setting current resolution: 1A

b SEF trip current range: 4 - 20Ab SEF option available on request: 1 - 20Ab SEF operating time range: 0.1 - 100 secb SEF trip current setting resolution: 1 Ab SEF operating time resolution: 0.1 sec

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Measurement features0

VoltageTrue RMS voltage is measured on all six terminals. A user configured threshold indicates live terminal.

CurrentRMS current is measured on three phases (reading 2-800A).

Power The Advanced Controller features kW, kVA, kVAr and powerfactor on a per-phase basis.

Configurable historical measurementsAverage demand profiles may be configured using WSOS. Customised configuration enables the user to specify only the parameters that are required, negating unnecessary information capture. Parameters such as line voltages and currents, power, kWh, battery voltage and cubicle temperature can be recorded in intervals selectable between 1 and 1,440 min.

Event History

Gas Pressure Measurement

Power Quality Toolkitb Supply outage measurement:v The Supply Outage Measurement feature utilises built-in recloser features to record the number and duration of outages. These statistics are recorded in the controller and are available to the Utility to help calculate system outage customer minutes.v The controller records the:

- cumulative total number of outages,- cumulative total outage duration, and- the time and duration of each outage event in the Event Log.

v These records are accessible to the user and can be retrieved using the operator control panel, WSOS or a SCADA System.b Harmonic analysis:v Harmonics 2 to 16 and the Total Harmonic Distortion (THD) are calculated over a 80 ms period for four currents, six line-line voltages and six line-earth voltages. These harmonics are available via WSOS.b Waveform capturev Based on an user defined trigger, the ADVC captures and stores in non-volatile memory scaled raw data (10 x 3200 samples per second) of the six line-earth voltages and four currents for a predefined time window either side of a user-defined trigger.v The user can configure a pre and post trigger time ratio for data to be stored. This defaults to 50% pre-trigger and 50% post-trigger.v The captured data can be uploaded at anytime in COMTRADE (IEEE Std C37.111-1999) format via WSOS.

Harmonic analysis

Waveform capture

b Minimum number of typical eventsstored in the event history:

30,000 events

b Gas pressure display resolution: 1kPa (0.2psi)b Gas pressure display accuracy: ±5kPa (0.7psi)b Gas low alarm setting: 15kPa Gauge @ 20°C

(2.2psi @ 68°F)b Gas low alarm accuracy: ±5kPa (0.7psi)

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N-Series recloser pole mounting details

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Notes(1) Details given in this illustration are subject to change without

notice. For full details see the Installation Manual.(2) Earthing connections are not shown and are to be in

accordance with the Installation Manual.(3) Recloser can be mounted closer to pole if lightning arresters

are pole mounted.(4) Optional substation mounting frame available on request.

Pole mounted N-Series recloserLegend

1 Customer Supplied:- Insulated connectors.- Connecting cables.- Lightning arresters.

2 Nu-Lec Industries Supplied:- 3m, 400A cable tail standard.- 250A, 630A or 800A by request.- Silicone bushing boots.

N-Series Model Rated Voltage

A [mm/in] B [mm/in] C [mm/in] D [mm/in] E [mm/in]

N15 15.5kV 1370 / 54.9 898 / 35.3 525 / 22.1 880 / 33.6 315 / 12.4N27 27kV 1370 / 54.9 898 / 35.3 525 / 22.1 880 / 33.6 315 / 12.4N38 38kV 1410 / 55.5 898 / 35.3 525 / 22.1 955 / 37.5 480 / 18.9

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N-Series recloser specifications

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(1) -40 to +50°C (-40 to 122°F) available as option when battery heater is fitted.(2) For altitudes above 1000m (3280 feet), derate in accordance with ANSI C37.60.

Ratings 12/15kV12.5kA

27kV12.5kA

38kV12.5kA

38kV16kA

Maximum system voltage 12/15.5kV 27kV 38kV 38kVRated continuous current 800A 800A 800A 800AEmergency current (8 hours) 850A 850A 850A 850AFault make capacity (RMS) 12.5kA 12.5kA 12.5kA 16kAFault make capacity (Peak) 31.5kA 31.5kA 31.5kA 40kAPower operating time (Close/Open) 0.1 / 0.05s 0.1 / 0.05s 0.1 / 0.05s 0.1 / 0.05sMechanical operations 10,000 10,000 10,000 10,000Rated full load operations 10,000 10,000 10,000 10,000Short time current (1 & 3s RMS) 12.5kA 12.5kA 12.5kA 16kA

Breaking capacityMainly active (0.7pf) 800A 800A 800A 800AFault break capacity 12.5kA 12.5kA 12.5kA 16kACable charging 25A 40A 40A 40ATransformer magnetising 22A 22A 22A 22ACapacitor bank 250A

Lightning impulse withstand levelPhase to earth 110kV 150kV 170kV 170kVAcross interrupter 110kV 150kV 170kV 170kVOn loss of SF6 60kV 70kV 70kV 70kV

Power frequency withstand voltagePhase to earth 50kV 60kV 70kV 70kVAcross interrupter 50kV 60kV 70kV 70kV

Service conditionsAmbient temperature °C(1) -10 to 50 -10 to 50 -10 to 50 -10 to 50Ambient temperature °F (1) 14 to 122 14 to 122 14 to 122 14 to 122Radiation (Max) 1.1kW/m² 1.1kW/m² 1.1kW/m² 1.1kW/m²Humidity 0 to 100% 0 to 100% 0 to 100% 0 to 100%Altitude meters (Max) (2) 3000 3000 3000 3000Altitude feet (Max) (2) 9840 9840 9840 9840

Net weights Circuit breaker with pole mount bracket (kg) 249 249 249 249Circuit breaker with pole mount bracket (pounds) 549 549 549 549Control cubicle with control cable (kg) 41 41 41 41Control cubicle with control cable (pounds) 90 90 90 90Gross weight of crate (kg) 404 404 404 404Gross weight of crate (pounds) 891 891 891 891External VT (kg) 60 60 60 60External VT (pounds) 132 132 132 132

Crate dimensionsStandard model Width: 1160mm/45.7”

Depth: 730mm/28.7”Height: 1640mm/64.6”

Model with external VT Width: 1160mm/45.7”Depth: 730mm/28.7”Height: 1960mm/77.2”

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Required details for order N-Series Recloser 0

(N15, N27 & N38)

Only one of the boxes (ticked or filled by the needed value) have to be considered between each horizontal line. Blue circle lead-time should be requested from your distributor.If the option required is not available for selection please detail requirements in the “Special notes” section.

Circuit Breaker unit Quantity

Rating (System Voltage / Interrupt / BIL) 15.5kV / 12.5kA / 110kV 27kV / 12.5kA / 150kV 38kV / 12.5kA / 170kV

38kV / 16kA / 170kV

Standard featuresProtection:b Ten protection groups;b Automatic protection group selection;b 48 protection curves;b Sensitive earth fault;b Loss of phase;b Cold load pickup;b Live load blocking;b Directional blocking; andb Over & under frequency.Measurement:b V, I, kW, kVA, kVAR;b Power factor measurement; andb Frequency.

Rated current (A) 630 800

Frequency 50/60Hz standard

Sensitive earth fault rating 1 - 20A 4 - 20A

Additional CTs inside switch tank Not Applicable 200/100/1 600/300/1 800/400/1

Language English US English Spanish Portuguese

Circuit breaker indication I / O English (On / Off)

VT mounting Not Applicable Tank mounted Pole mounted

Controller

Transition cables Advanced controller (ADVC) see separate order form page 15

AccessoriesMounting arrangement Pole mount: B type (15-27kV) C type (38kV)

Substation frame: Adjustable Fixed

Concrete pole clamps Not Applicable 230-270 mm 270-310 mm

Lug transition cable Bushing boots 770mm (15-27 kV) 1100mm (38 kV) Set of 6 Deadbreak elbow

Terminal cable rating 250A (aluminium) 400A (aluminium) (Note: 800A cable is not water blocked) 630A (aluminium) 800A (copper)

Terminal cable length 3 metres 4 metres Set of 6 5 metres 6 metres

Other

1) Transition cables Lug M16 bolt M16 bolt transition cable 1) Maximum 27kV Bare

Control cable length 4 metres 7 metres 11 metres 20 metres

Other

Auxiliary equipmentSurge arresters Not Applicable Surge arresters

Bare transition cable

Special notes

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Required details for order Advanced Controller (ADVC) 0

Only one of the boxes (ticked or filled by the needed value) have to be considered between each horizontal line. Blue circle lead-time should be requested from your distributor.If the option required is not available for selection please detail requirements in the “Special notes” section.

Control unit Quantity

Ambient temperature (ºC) Standard: -10 to 50 Extended: -40 to 50

Auxiliary supply type Single supply: 115Vac 240Vac

Courtesy outlet (2A max.) Australia UK USA South Africa

None Other

Battery hold up time 38 hours 52 hours

Language English US English Spanish Portuguese

Standard protocol DNP3

OptionsAdvanced features Power quality module

Loop Automation

AccessoriesPTCC pole mounting adapter plate Not applicable Yes

Maximum of 1 option in each group column.Group A Group B Group C Group D

IOEX2 (Input output expander)

Modem RS232 Phone:

600 ohm interface TERM1:TERM2:

UHF Radio V23 FSK radio:RS232 radio:

Special notes

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As standards, specifications and designs change from time totime, please ask for confirmation of the information given in thispublication.

Corporate office &factory35-37 South StreetLytton, 4178QueenslandAustralia

Tel: +61 7 3249 5444Fax: +61 7 3249 5888

e-mail: sales@nulec.com.auhttp://www.nulec.com.au

Nu-Lec Industries USA office

1252 Old Alpharetta RoadAlpharetta, Georgia30005-3986United States of America

Tel: +1770 521 2000Fax: +1770 521 2100

e-mail: sales@nulec.comhttp://www.nulec.com

01/2005

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