Merlin Gerin MCset Metalclad switchgear with withdrawable ... · PDF filetype testing was...

Merlin GerinMCset Metalclad switchgearwith withdrawable circuit breaker1-24kV

1Schneider Electric

Contents

MCset presentation 2

MCset range 10Presentation 10Technical characteristics 12Operating conditions 13Protection of people 14Internal arc protection 14Dependable mechanical control devices 15

Choice of functional units 16

Cubicle description 18AD type cubicles incomer and feeder 18CL - GL type cubicle line-up bussectioning 20TT type cubicles metering and busbar earthing 22DI type cubicles switch-fuse feeder 23

Protection, monitoring and control 24The protection system 24Sepam 2000 26Instrument transformers 30

Switchgear 34Withdrawable parts 34LF Circuit breaker 36SF circuit breakers 40Rollarc contactor 44

DI switch cubicle 48Withdrawable part extraction 51

Installation 52Implementation examples 52Connections 54

Cubicle equipment 56

Current transformers (Selection guide) 58

A few references 59

MCset presentation Field of application

MCset adapts to all electrical power distribution requirements from 1 to 24 kV.MCset is an indoor, metal-clad switchgear unit intended for the MV section of HV/MV substations and high power MV/MV substations. ■ for all your applications:■ power station auxiliary substations ■ industrial process substations

■ MCset offers you:■ pre-engineered and adaptable solutions tailored to your specific

requirements■ significantly reduced maintenance■ local support centres throughout the world.

■ MCset gives you the advantages of:■ continuity of service for your networks■ enhanced safety for your staff and operations■ optimized investment throughout the life of your installation■ the possibility of integrating your Medium Voltage switchboard in a

monitoring and control system.

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2 Schneider Electric

MCset presentation Field of application

The MCset offerProtection and control of medium voltage switchboards is possible at three levels: ■ the MCset cubicle:■ MV switchgear and connections ■ transformers (current, voltage, etc.)■ auxiliaries (earthing switch, lightning arresters)

■ the protection, monitoring and control unit for each cubicle:■ pre-engineered low voltage systems, based around the Sepam offer■ custom designed systems.

■ monitoring and control software for your electrical installation allowing you to manage your MCset switchboard.

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MCset presentation The experience of a world leader

Schneider has equipped medium voltage networks with switchgear and protection, monitoring and control solutions for over 40 years. The MCset range benefits from the cumulated experience of an equipment base of over 100,000 functional units, 200,000 MV circuit breakers and 300,000 MV digital protection functions.

MCset: the advantage of experience■ 1950, invention of the “factory-built cubicle” concept■ 1974, Merlin Gerin's first factory-built switchboard combining breaking

and protection■ 1985, invention of the digital “protection, monitoring and control unit”

concept (Sepam range)■ 1989, first integrated protection circuit breaker in the world without an

auxiliary power supply ■ 1996, market launch of MCset

In choosing MCset, you have the key advantages of:■ the extensive experience of the world leader in medium voltage ■ a host of solutions derived from the most modern concepts■ a comprehensive solution designed to meet the most exacting

standards of professionals involved in installing and operating public or private networks.

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1958: Belledonnne 1980: Fluair 1987: Venus 1996: MCset


MCset presentation Continuity of service and complete safety

MCset is solidly based on extensive experience acquired throughout the world and provides your networks with a high level of dependability and safety. MCset integrates a host of innovative solutions designed around proven techniques: high performance switchgear, digital protection, monitoring and control systems, enclosures capable of withstanding internal arcing. From its very conception, MCset has taken account of three key user requirements:

Reliability■ type testing was carried out for each performance level in the MCset

range■ three-dimensional computer modeling techniques were used to study

the electrical fields■ the design, manufacturing and testing of MCset was carried out

according to ISO 9000 quality standards.

Simplicity■ a user interface which is easily understood by everybody■ interlocks and padlocks preventing operator errors■ Sepam-type protection units enabling on-site information retrieval

without any additional devices■ maintenance limited to simple, routine operating checks and cleaning

and greasing every 5 to 10 years■ easy installation due to identical civil engineering dimensions for all

cubicles and installation being possible against a wall.

Safety■ operations are all performed from the front, including access to

connections and busbars■ racking in and out is only possible with the door closed■ the power-on indicator is situated on the front of the functional unit■ the earthing switch has making capacity■ one single ‘‘anti-reflex‘‘ handle is used for all MCset operations■ internal arc withstand developed for all functional units.

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MCset presentation MCset, a comprehensive solution
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1 Monitoring and controlOptimizing your power supply means finding ways of reducing direct and indirect costs and ensuring continuity of service. To achieve this you need to know more about the way your electrical installation operates: protection plan, consumption, disturbances, harmonics pollution, etc.

Mastering your power from A to Z…

Operating costs

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Operating and maintaining■ real time network information ■ identifying available capacity ■ preventive maintenance■ printing of reports.

Ensuring power quality■ detecting problems through anticipation■ diagnosing disturbances due to harmonics■ monitoring neutral point currents.

Availability of supplyMinimizing power cuts■ diagnosing network faults■ managing the network from a remote site ■ trouble shooting assistance■ network reconfiguration following a fault.

Enhancing reliability■ detecting voltage disturbances■ providing automatic source transfer ■ monitoring the protection plan■ managing the load sustaining plan.

Power consumptionReducing energy costs■ managing peaks in consumption■ optimizing your power contract ■ improving the power factor■ automatic load shedding.

Saving energy■ analyzing operating trends■ making users aware of costs■ internal cost allocation.


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Protection and controlReal time circuit breaker monitoring■ circuit breaker position (open, closed, tripped)■ trip threshold, load percentage■ fault diagnosis, information on causes of tripping.

Circuit breaker control■ remote control through the communication system (open / closed)■ automatic control diagram display.

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Schneider Electric monitoring and control solutions■ Protection, monitoring and control units (Sepam) for functional units ■ A standard power logic system (SMS) software package for installation control ■ Integration of MCset in all monitoring and control systems:■ communication with a Modicon plc unit■ open-endedness through a standard protocol (Modbus).■ Customizing the system to meet your exact requirements.

7Schneider Electric

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Schneider Services, by your side throughout the life of your installation

SpecifyingWe help you to define your solutions: selection guide, technical assistance, advice…

ImplementingWe oversee the completion and commissioning of your installation: design, cost optimization, guaranteed performances and dependability, commissioning tests, etc.

OperatingWe help run your daily operations in real time: maintenance contract, technical assistance, supply of replacement parts, corrective and preventive maintenance, operation and maintenance training, etc.

ModernizingWe can bring the performance of your installation up to date: installation audit, switchgear diagnosis, adaptation and modification, end of life recycling, etc.

Examples of services provided■ Warranty extension:A warranty extension is proposed if your installation is checked by ourselves before being commissioned.

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■ Circuit breaker-contactor diagnosis:Throughout the life of the equipment, it is possible to carry out routine measurement of its characteristics in order to optimize maintenance. This service may be part of a global installation maintenance contract.

■ End-of-life recycling:Schneider Services has an operational subsidiary allowing you to recycle your medium voltage switchgear.

Specifying

Operating Implementing

Modernizing


MCset presentation Quality assurance - environment
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Certified quality: ISO 9001

A major assetIn each of its units, Schneider Electric integrates a functional organization whose main role is to check quality and monitor compliance with standards.This procedure is:■ uniform throughout all departments;■ recognized by many customers and approved organizations.But above all, it is its strict application that has allowed us to obtain the recognition of an independent organization: the French Quality Assurance Association (AFAQ).The quality system for the design and manufacture of MCset is certified to be in conformity with the requirements of ISO 9001 and ISO 9002 quality assurance standards.

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Strict and systematic checks During its manufacture, each MCset is subject to systematic routine testing, intended to check both quality and conformity:■ sealing test■ filling pressure test■ measuring of opening and closing speeds■ measuring of operating torque■ dielectric test■ testing of safety systems and interlocks■ testing of low voltage components■ conformity with drawings and diagrams.The results obtained are given by the quality control department on each device’s test certificate.

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Protecting the environment As part of the group’s environmental policy, Schneider Services provides you with an operational subsidiary to recover medium voltage switchgear and thus eliminate any discharge to atmosphere.In order to help you protect the environment and to relieve you of any concerns in terms of stock or dismantling, Schneider Services offers to take back your equipment at the end of its life. MCset has been designed with environmental protection in mind:■ the materials used, insulators and conductors are identified, easily separable and recyclable■ the SF6 can be recovered at the end of the equipment’s life and reused after treatment■ production sites are certified to ISO 14000

9Schneider Electric

MCset range Presentation
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MCset range Presentation

Make up of an MCset switchboardMCset switchboards are made up of several interconnected functional units. Power connections are made between functional units within a switchboard via a single busbar.The electrical continuity of all metal frames is provided by the connection of each functional unit’s earthing busbar to the switchboard’s main earthing circuit.Low voltage wiring trays are provided in the switchboard above the low voltage compartments.LV cables can enter the switchboard through the top or bottom of each functional unit.

Description of a functional unit A functional unit comprises all equipment in the main and auxiliary circuits which together provide a protection function.Each functional unit combines all the components which are required to fulfil this function:■ the withdrawable part■ the cubicle■ the protection, monitoring and control system.

The cubicleThe cubicle is of “metal-clad” type as defined by IEC standard 60298, in other words the medium voltage parts are compartmented using metal partitions which are connected to earth and which separate:■ the busbars■ the withdrawable part (circuit breaker, fuse-contactor, disconnector truck or

earthing truck)■ MV connections, earthing switch, current sensors and voltage transformers as §

required.The low voltage auxiliaries and monitoring unit are in a fourth compartment separated from the medium voltage section. Four basic cubicle layouts are offered:■ incomer or feeder AD■ line up bussection CL - GL■ busbar metering and earthing TT■ switch-fuse feeder DICubicles of type AD and CL have withdrawable switchgear.

The protection, monitoring and control system This includes:■ Sepam, protection, monitoring and control unit■ current sensors, which may be of 3 types:■ phase and zero sequence current transformers■ core balance CT’s■ non-magnetic Rogowski coils (CSP type).■ voltage transformers■ zero sequence core balance CT’s (CSH type).

The withdrawable partThis includes:■ the circuit breaker or contactor with its closing and opening mechanism, the

disconnector truck or the earthing truck■ the lever-type propulsion mechanism for racking in-out■ interlocks to fix the withdrawable part on the fixed part either in service position

or disconnected.

11Schneider Electric

MCset range Technical characteristics

The values below are given for normal operating conditions as defined in IEC 60298 and 60694.

(1) For functional units equipped with circuit breakers or fuse-contactors,the breaking capacity is equal to the short time withstand current. In all cases, the device peak making capacity is equal to 2.5 times the short time withstand current. (2) Lightning impulse dielectric impulse withstand voltage = 60 kV peak.(3) For greater values: please consult us.(4) Limited by fuses.

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Rated voltage (kV)

7.2 12 17.5 24

Rated insulation levelPower frequency withstand voltage 50Hz - 1mn (rms.kV)

20 28 38 50

Lightning impulse withstand voltage 1.2/50µs (kV peak)

60 75 95 125

Nominal current and maximum short term withstand current(1)

Functional unit with circuit breakerShort time withstand current

Ith max (kA/3s) 31.5 31.5 31.5 1640 40 31.5 25

(kA/1s) 50 50 31.5 31.5Rated current In max JdB (A) 3150 3150 3150 2500Rated current In CB. (A) 630 630 630 630

1250 1250 1250 12502500 2500 2500 20003150 (3) 3150 (3) 3150 (3) 2500

Functional unit with fuse-contactor (2)

Short time withstand current

Ith max (kA) 50 (4) 50 (4)

Rated current In max (A) 250 200Functional unit with switch-fuse (cellule DI)

Short time withstand current

Ith max (kA) 50 (4) 50 (4) 31.5 (4) 31.5 (4)

Rated current In max y (A) 200 200 200 200

Internal arc withstand (3)

(kA / 1 s) 25 25 25 25(kA / 0.15 s) 40 40 31.5


MCset range Operating conditions
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Operating conditions Normal operating conditions, according to IEC 60694 for indoor switchgear■ ambient air temperature: ■ less than or equal to 40 °C■ less than or equal to 35 °C on average over 24 hours■ greater than or equal to -5 °C.■ altitude: ■ less than or equal to 1000 m■ above 1000 m, a derating coefficient is applied (please consult us).■ atmosphere: no dust, smoke or corrosive or inflammable gas and vapor, or salt. (clean industrial air)■ humidity: ■ average relative humidity over a 24 hour period, less than or equal to 95%, ■ average relative humidity over a 1 month period, less than or equal to 90%, ■ average vapor pressure over a 24 hour period y 2.2 kPa, ■ average vapor pressure over a 1 month period y 1.8 KPa.

Specific operating conditions (please consult us)MCset has been developed to meet the following specific conditions:■ marine applications (installation of MCset switchboard on boats, off-shore rigs)■ earthquake withstand application (MCset switchboards can be installed in areas with a high seismic risk)■ temperature (possible derating)■ corrosive atmospheres, (possible adaptation).

Storage conditionsIn order to retain all of the functional unit›s qualities when stored for prolonged periods, we recommend that the equipment is stored in its original packaging, in dry conditions sheltered from the sun and rain at a temperetaure of between -25 and +55˚C.

StandardsThe MCset range meets the following international standards:IEC 60694: clauses common to high voltage switchgearIEC 60298: metal-enclosed switchgear for alternating current at rated voltages of between 1 and 52kVIEC 60056: high voltage alternating current circuit breakers IEC 60470: high voltage alternating current contactors IEC 60265-1: high voltage alternating current switchesIEC 60282-2: high voltage fuses IEC 60129: alternating current disconnectors and earthing switchesIEC 60255: measurement relay and protection unit (Sepam)IEC 60044-1: current transformersIEC 60044-2: voltage transformers.

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MCset range Protection of peopleInternal arc protection

Standard IEC 60298 appendix AA gives a “method for testing metal-enclosed switchgear under internal arcing fault conditions”. This test aims to show that an operator present in front of an MCset switchboard during an internal fault will not be at risk from the effects of this arc.

MCset internal arc (in conformity with IEC 60298 appendix A-A)Internal arc version: MCset is designed to withstand and protect operators in the case of failure due to an internal arc. It is in conformity with appendix AA of standard IEC 60298 and has been successfully tested using type tests relative to this standard.MCset proposes several options to install an internal arc switchboard.■ 3-sided internal arc protection. For an MCset switchboard fitted against a wall, access to the rear of the cubicle is impossible. Internal arc protection on 3 sides is sufficient. ■ 4-sided internal arc protection.In the case of an MCset switchboard installed in the middle of a room, internal arc protection on 4 sides is necessary in order to protect an operator who goes behind the cubicle. ■ installation in a room with limited ceiling height■ Ceiling height of between 2.8 and 4 metres, it is necessary to install a tunnel

above the switchboard. This is in order to channel off the hot gas (due to the effects of internal arcing) in order to avoid the gases moving towards any operators present

■ Ceiling height of over 4 metres: tunnel not compulsory■ Internal arcing detectorMCset has a system enabling the detection of internal arcing and disconnecting of internal power supply in order to limit the duration of the fault to less than 140 ms. This system incorporates an electro-mechanical fail-safe trip system, located on the cubicle flaps. This unit transmits information to Sepam to give the circuit breaker upstream of the fault the opening order.

MCsetBasic version (gas exhaust): MCset is designed to offer a good level of safety by eliminating the effects of internal arcing due to:■ metal flaps positioned above the enclosure, which in the case of internal fault,

limit overpressure in the compartments, channelling and evacuating hot gases to the outside, eliminating the hazard for the operator.

■ nonflammable materials used for the cubicle.

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MCset switchboard fitted against the wall

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MCset switchboard with rear access

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MCset switchboard with limited ceiling height


MCset range Protection of peopleDependable mechanical control devices

All operations are carried out from the front face, including access to connections and busbars.The user is guided through icon-diagrams on each front panel making it easy to understand the operating sequence and device status. Interlocks and padlocks prevent operator errors. Several additional levels of security also protect operators: ■ racking in and out is only possible with the door closed■ the very extensive set of mechanical and electrical interlocks do not allow

operator error. These can be added to by key locks or padlocks according to specific operating procedures. Each selector can be fitted with one to three padlocks.

■ all operations are carried out from the front face, including access to connections and busbars

■ the voltage present indicator is located on the front face of the functional unit, in the immediate vicinity of the earthing switch control.

Options■ disarming of circuit breaker when racking out. This function enables the circuit

breaker control springs to be disarmed during the extraction operation■ disabling of racking in. This function disables the possibility of racking the

withdrawable part in if the front pannel (cable compartment) is not installed.

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MCset range Choice of functional units

The MCset range comprises 13 functional applications .The table below can be used to link requirements to functional units and gives basic information on the general composition of each unit.

Selection guide:We want to supply power to a transformer.The chosen solution is a transformer feeder/breaker.The corresponding functional unit will therefore be a TF-B, comprising a AD cubicle equipped with a withdrawable circuit breaker, and a type T Sepam.

(1) The direct incomer (functional unit without a circuit breaker, equipped with a fixed busbar bridge) is produced using cubicles AD1-2-3 for U y to 17.5 kVFor the 24 kV version, the direct incomer is produced using a specific cubicle: RD4.(2) Upstream current transformer impossible for cubicle CL3 - 3150 A.

Function Incomer (1) FeederLine Transformer Generator Line Transformer Transformer

Functional unit LI-B TI-B GI-B LF-B TF-B TF-SCubicle AD (1 to 4) AD (1 to 4) AD (1 to 4) AD (1 to 4) AD (1 to 4) DI (2-4)

Device Circuit breaker Circuit breaker Circuit breaker Circuit breaker Circuit breaker Fuse-switch

Protection, monitoring and control unit

Sepam 2000S Sepam 2000T Sepam 2000G Sepam 2000S Sepam 2000TSepam 1000+S Sepam 1000+T Sepam 1000+S Sepam 1000+T

Single line diagrams

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(optional voltage transformers)


MCset range Choice of functional units

Feeder Bussectioning Metering and busbar earthingMotor Motor Capacitor Capacitor Switchboard Sub-station

MF-B MF-C CB-B CB-C BS-B SS-B BB-VAD (1to 4) AD1 AD (1 to 4) AD1 CL (1 to 4) and

GL (1 to 4)AD (1 to 4) TT (1-2-4)

Circuit breaker Fuse-contactor Circuit breaker Fuse-contactor Circuit breaker Circuit breakerSepam 2000M Sepam 2000M Sepam 2000C Sepam 2000C Sepam 2000B Sepam 2000SSepam 1000+M Sepam 1000+M Sepam 1000+B Sepam 1000+S

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(optional auxiliary transformers)

(optional instrument transformers) (2)

(optional voltage transformers)


Cubicle description AD type cubiclesincomer and feeder

AD1, AD2, AD3

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AD1 AD2

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AD3

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MV compartments1 busbars for cubicle interconnection2 withdrawable part (circuit breaker LF1-2-3, contactor R400-R400D equipped with

fuse disconnector truck or earthing truck)3 MV connections by cables accessible from the front face4 earthing switch5 current sensors6 voltage transformers (optionally equipped with withdrawable fuses).

LV compartment7 low voltage auxiliaries and the protection, monitoring and control unit are in a

compartment which is separated from the medium voltage part

Characteristics

Rated voltage kVRated insulation level kV, rms. 50 Hz - 1 mn

kV, impulse 1,2/50 µsRated current A 200

2506301250200025003150 (3)

Breaking capacity kAShort time withstand current (kA rms. 1 s)Short time withstand current (kA rms. 3 s)Dimensions and weight H (mm)

W (mm)D (mm) (2)

Weight (kg)(1) limited by fuses(2) overall + 175 mm for 4-sided internal arcing protected switchboards.(3) for greater values: please consult us.


Cubicle description AD type cubiclesincomer and feeder(cont)

AD4

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AD4

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MV compartments1 busbars for cubicle interconnection2 withdrawable part (SF1-2 circuit breaker, disconnector truck or earthing truck)3 MV connections by cables accessible from the front face4 earthing switch5 current sensors6 voltage transformers (optionally equipped with withdrawable fuses).

LV compartment7 low voltage auxiliaries and the protection, monitoring and control unit are in a

compartment which is separated from the medium voltage part

AD1 AD1 contactor AD2 AD3 AD47,2 12 7,2 12 7,2 12 17,5 7,2 12 17,5 2420 28 20 28 20 28 38 20 28 38 5060 75 60 60 60 75 95 60 75 95 125

■ ■

■

■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■

■

■ ■ ■ ■

■ ■ ■

31,5 31,5 50 (1) 50 (1) 50 40 31,5 50 50 31,5 31,531,5 31,5 50 (1) 50 (1) 50 40 31,5 50 50 31,5 31,531,5 31,5 50 (1) 50 (1) 40 40 31,5 40 40 31,5 16 or 252300 2300 2300 2300 2325570 570 700 900 9001575 1575 1575 1575 1750

600 600 700 800 1100


Cubicle description CL - GL type cubicleline-up bussectioning

The bussectioning functional unit comprises 2 cubicles mounted side by side (one cubicle equipped with a circuit breaker, the other with a busbar return).

CL1, CL2, CL3

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CL1-2-3 and GL1-2-3

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MV compartments1 busbars to connect the bussectioning functional unit with other switchboard

functional units 2 withdrawable part (circuit breaker LF1-2-3, contactor R400-R400D equipped with

fuses, disconnector truck or earthing truck)3 current sensors4 voltage transformers (optionally equipped with withdrawable fuses)

LV compartment5 low voltage auxiliaries and protection, monitoring and control unit are in one

compartment, separated from the medium voltage part.

Characteristics

Rated voltage kVRated insulation level kV, rms 50 Hz - 1 mn

kV, impulse 1,2/50 µsRated current A 630

1250200025003150

Breaking capacity kAShort time withstand current (kA rms. 1 sec)Short time withstand current (kA rms. 3 sec)Dimensions and weight H (mm)

W (mm)D (mm) (1)

Weight (kg)(1) overall + 175 mm for 4-sided internal arcing protected switchboards.

GL1, GL2, GL3GL1, GL2, GL3


Cubicle description CL - GL type cubicleline-up bussectioning

CL4

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A V/H W/jj clear reset

I on trip

alarmWh

O off

L L L

M

W

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MV compartments1 busbars to connect the bussectioning functional unit with other switchboard

cubicles 2 withdrawable part (circuit breaker SF1-2, disconnector truck or earthing truck)3 current sensors4 voltage transformers (optionally equipped with withdrawable fuses)

LV compartment5 low voltage auxiliaries and protection, monitoring and control unit are in one

compartment, separated from the medium voltage part.

GL4GL4

CL1 / GL1 CL2 / GL2 CL3 / GL3 CL4 / GL47,2 12 7,2 12 17,5 7,2 12 17,5 2420 28 20 28 38 20 28 38 5060 75 60 75 95 60 75 95 125■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■

■

■ ■ ■ ■

■ ■ ■

31,5 31,5 50 40 31,5 50 50 31,5 31,531,5 31,5 50 40 31,5 50 50 31,5 31,531,5 31,5 40 40 31,5 40 40 31,52300 2300 2300 2325570 (x 2) 700 (x 2) 900 (x 2) 9001575 1575 1575 1750550 (x 2) 650 (x 2) 750 (x 2) 800 (x2)


Cubicle description TT type cubiclesmetering and busbar earthing

TT1, TT2

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TT1 TT2

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TT4

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TT4

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MV compartments 1 busbars to connect the DI functional unit with other switchboard cubicles2 switch - earthing switch3 MV fuses

LV compartment 4 Low voltage auxiliaries and the protection, monitoring and control unit are in a

compartment which is separate from the medium voltage part.

CharacteristicsTT1 TT2 TT4

Rated voltage kV 7.2 12 7.2 12 17.5 24Rated insulation level kV, rms. 50 Hz - 1 mn 20 28 20 28 38 50

kV, impulse 1.2/50 µs 60 75 60 75 95 125Rated current A 630 ■ ■ ■ ■ ■ ■

(busbar intensity) 1250 ■ ■ ■ ■ ■ ■

2000 ■

2500 ■ ■ ■ ■ ■ ■

3150 ■ ■ ■ ■ ■

Short time withstand current (kA rms. 1 s) 31.5 31.5 50 50 31.5 31.5Short time withstand current (kA rms. 3 s) 31.5 31.5 50 40 31.5 16 or 25Dimensions and weight H (mm) 2300 2300 2325

W (mm) 570 700 900D (mm) (1) 1550 1550 1750Weight (kg) 500 550 560

(1) overall + 175 mm for 4-sided internal arcing protected switchboards.


Cubicle description DI type cubiclesswitch-fuse feeder

DI2

DI cubicles including a fuse switch are used to supply power and protect low power transformers.E.g.: auxiliary service transformers in primary sub-stations.All operations are carried out from the front face, including access to connections and busbars. All functional interlocks meet recommendations in IEC 60298: ■ the switch is only possible to close if the earthing switch is open and the

connection access panel is in place■ closing of the earthing switch is only possible if the switch is open ■ opening of the access panel to medium voltage connections and fuses is only possible of the

earthing switches upstream and downstream of the fuses are closed.

■ the switch is locked in the open position when the access panel is taken off.The voltage presence indicator is situated on the front face of the functional unit, integrated in the switch’s control panel.

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DI2

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DI4

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DI4

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MV compartments1 busbars to connect the DI functional unit with other switchboard cubicles2 switch - earthing switch3 MV fuses

LV compartment 4 Low voltage auxiliaries and the protection, monitoring and control unit are in a

compartment which is separate from the medium voltage part.

CharacteristicsDI2 DI4

Rated voltage kV 7.2 12 17,5 24Rated insulation level kV, rms. 50 Hz - 1 mn 20 28 38 50

kV, impulse 1.2/50 µs 60 75 95 125Rated current A 200 ■ ■ ■ ■

Breaking capacity kA (2) 50 50 31.5 31.5Short time withstand current (kA rms.) (2) 50 50 31.5 31.5Dimensions and weight H (mm) 2300 2325

W (mm) 700 900D (mm) (1) 1550 1750Weight (kg) 500 640

(1) overall + 175 mm for switchboard internal arcing 4 sides.(2) limited by fuses.


Protection, monitoring and control

The protection system

Each MCset functional unit is equipped with a comprehensive protection, monitoring and control system comprising:■ instrument transformers to measure the necessary electrical values (phase

current, residual current, voltages, etc.)■ protection relays, providing functions adapted to the part of the network to be

protected■ metering equipment, to inform operators■ low voltage relaying, i.e. to provide control of the breaking device (contactor or

circuit breaker) and of the withdrawable part■ various auxiliaries: secondary circuit test units, etc.

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Sepam range

Sepam: protection, monitoring and control unitsSepam is a range of digital monitoring protection and control units.Sepam is at the centre of the protection, monitoring and control system for MCset functional units: all the necessary protection, metering, control, monitoring and signalling functions are carried out by Sepam.

Like the MCset range, the Sepam range is a range of units defined to provide an optimal solution for each application, and includes:■ Sepam S, sub-station incomer and feeder■ Sepam B, bussectioning■ Sepam T, transformer feeder■ Sepam M, motor feeder■ Sepam C, capacitor feeder■ Sepam G, generator feeder.

The Sepam range hinges around 2 functional and hardware bases:■ Sepam 2000, focused on performance, covers all MCset functional applications ■ Sepam 1000+, simple and modular, offers an optimized solution for most

common applications.

The Sepam offer panorama presents the major functional differences between Sepam 1000+ and Sepam 2000 on pages 28-29.

Sepam advantagesSepam, a digital multi-functional protection unit, provides you with the following advantages:■ simple to use for better daily efficiency: user-machine interface (UMI) which is

ergonomic and which provides comprehensive and clear information to operators

■ simple to incorporate: flexibility and user friendliness of parameter setting software, simplified tests

■ money saving: ■ integrating all functions required in one single, ready to use product■ upgradable solution, to spread the cost of investment over time■ centralized MCset switchboard management: ■ Sepam is easily integrated into all network control systems, due to its Modbus

communication interface.■ all data required for installation monitoring and control are accessible through the

Modbus communication.■ better network knowledge through the oscillo-disturbance recording function and

measurement of the imbalance ratio, motor operation parameters, etc.■ improving continuity of service ■ through effective preventive equipment maintenance using switchgear diagnosis

functions: time and number of operations, sum of breaking currents A2, etc. ■ through clear and comprehensive information, both locally and remotely,

reducing the time needed to act in the event of a fault.

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Sepam 1000+ and Sepam 2000

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Modbus communication architecture



Sepam 2000

Sepam 2000, for all applicationsThe Sepam 2000 range of digital protection, monitoring and control units provides a comprehensive solution for all applications:sub-station, busbar, transformer and motor, as well as generators and capacitors.

Different types of Sepam 2000 are proposed for each type of equipment to be protected. For example, there are 30 different types of Sepam 2000 dedicated to protection, monitoring and control of transformers. Each Sepam 2000 is an optimized solution, designed to provide an exact response to the actual requirements of a functional application, including all the required functions, ready to use.

Focused on performance, Sepam 2000 includes the following functions:■ metering functions: measurement of current and voltage, measurement of power

and active and reactive energy, etc.■ protection functions: directional phase and earthing protection, differential

transformer or machine protection, etc.■ monitoring and control functions: in its function as a programmable logical

controller, Sepam 2000 is pre-programmed to carry out standard monitoring and control functions, and can be reprogrammed to handle any specific automatic control function!

To choose the type of Sepam 2000 best suited to your application, the "Sepam range" catalogue includes selection charts for the whole Sepam 2000 range.(document AC0401). A "Sepam 2000 Selection Guide" software package is also available for computer-aided selection of Sepam 2000 for a given application.Protection, monitoring and control

E61

786R

Sepam 2000

E61

780



Sepam 1000+ / Sepam 100

Sepam 1000+, for the most common applicationsSepam 1000+ is a new range of protection, monitoring and control units which are both cost-effective and high performance.

Sepam 1000+, a simple solution:■ a lean catalogue adapted to the following typical applications: line incomers and

feeders, transformers, motors and busbars■ ready to use, with integrated settable breaking device control ■ ergonomic user-machine interface (UMI) for intuitive use

Sepam 1000+, a modular solution To adapt to increasing numbers of applications, and to allow the installation to be upgraded at a later date:■ choice between 2 user-machine interfaces (UMI): a basic UMI, or an advanced

UMI with graphic LCD screen and keypad. The advanced UMI can be remotely located and its screens can be customized in all languages.

■ functional enhancement with optional additional modules: on / off input / output, Modbus communication network connection interface, acquisition module for 8 temperature probes or low level analogue output module (4-20 mA).

Sepam 100Sepam 100 units round off the Sepam range and can be installed either separately or combined with either Sepam 1000+ or Sepam 2000.

Sepam 100 has several variants:■ Sepam 100 LD, high impedance differential protection■ Sepam 100 MI, local breaking device control and signalling modules (many

different line diagram types are available).

0576

02H

D

Sepam 1000+

0500

91

0500

92

Sepam 100 LD Sepam 100 MI



Sepam offer panorama

The Sepam offer panorama shows the major functional differences between Sepam 1000+ and Sepam 2000for more information, please refer to the «Sepam range» catalogue ref. AC 0401 containing:■ comprehensive selection guides enabling you to choose the Sepam unit suited to your exact requirements■ Sepam characteristics

FunctionsApplications

MeasurementsCurrents I1/I2/I3/I0

IM1/IM2/IM3Itrip 1/2/3/0

Voltages and frequencies U21/U32/U13V1,V2,V3V0Vdf

Powers and energies P/Q, PM/QM, cosjj ϕEa/Er

TemperaturesProtection ANSI Codes

Phase 50/51Earth 50N/51NImbalance 46Directional 67/67NDifferential 87T/87M/87BRestricted earthing differential 64REFOverload 49/49T/38Motor 37/48/51LR/66Voltage 59/27

59NFrequency 81H/81LUncoupling (df/dt) 81RSpecific

Network diagnosisDisturbance recordingSwitchgear diagnosis

Operation timeTrip currents, sum of breaking currentsTrip circuit monitoringWatchdogCommunication

ProtocolInterfaceMonitoring and control

Inputs / outputs basicMaximum

Breaking device controlLogical selectivityCustomizing Parameter setting

Programming■ available functions


v


Sepam offer panorama

Sepam 2000 Sepam 1000+

Substation

Busbar Transfor-mer

Motor Generator Capacitor Substation

Transfor-mer

Motor Busbar

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■

■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■

■ ■ 67N ■

87T 87M 87M■ ■

■ ■ ■ 49 ■ ■

■ ■

■ ■ ■ ■ 27/59 ■

■ ■ ■ ■

■ ■ ■

32P7927R

2527D

50N/51N: (neutral point) 50/51: (tank earth)27R

32P and32Q/4027D/47

32P, 32Q/402550V/51V

Cap. bank imbalance

79 27D/4727R

2 recordings of 86 periods 2 recordings of 86 periods

■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■

1 output / 4 contacts: 2 x (1NC + 1NO) 1 output / 2 contacts: 1NC + 1NO

Modbus ModbusRS485 2 or 4 wire RS485 remote power supply, 2 or 4 wire

10I/6O in/out 4O in/out26I/14O in/out 10I/8O in/out

1 analogue output■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■



Instrument transformers

Conventional current transformers Conventional current transformers are used to provide power to metering, measuring or control devices. They measure the value of primary current from 10 A to 3150 A. Schneider Electric has drawn up a list of current transformers which are appropriate for use with digital protection devices in order to make it easier to determine accuracy characteristics. This list is available in the selection guide on page 58. characteristics. This list is available in the selection guide on page 64. For contactor cubicle AD1Transformer ARJP1/N2J■ single primary current, double secondary current for measurement or protection■ frequency 50-60 Hz

For cubicle AD1-CL1-GL1-AD2-CL2-GL2-AD4-GL4Transformer ARJP2/N2J■ double primary current, double secondary current for measurement or protection■ frequency 50-60 Hz

For cubicle AD1-CL1-GL1-AD2-CL2-GL2-AD4-GL4Transformer ARJP3/N2J■ single primary current, double secondary current for measurement or protection■ frequency 50-60 Hz

For cubicle AD3-CL3-GL3-AD4-GL4Transformer ARJA1/N2J■ single primary current, double secondary current for measurement or protection■ frequency 50-60 Hz

For cubicle AD3-CL3-GL3Transformer ARO1a/N3■ single primary current, triple secondary current for measurement or protection■ frequency 50-60 Hz

E28

676

ARJP1-2 or 3

I1n (A) 10 20 30 50 75 100 150 200 250Ith (kA) 1.2 2.4 3.6 6 10 10 10 10 10t (s) 1 1 1 1 1 1 1 1 1Measuring* protection*

cl.0.5 15 VA5P20 2.5 VA

I1n (A) 50-100 75-150 100-200 150-300 200-400 250-500 600 750Ith (kA) 40 40 31.5-40 40 40 40 50 50t (s) 1 1 1 1 1 1 1 1Measuring* protection*

cl.0.5 5-10VA 10-20VA 7.5-15VA 10-20VA 20VA 20VA5P20 2.5-5VA 2.5-5VA 2.5-5VA 2.5-5VA 5-10VA 5-10VA 7.5VA 7.5VA

I1n (A) 1000 1250Ith (kA) 50 50t (s) 1 1Measuring* protection*

cl.0.5 30 VA 30 VA5P20 10 VA 10 VA

E74

399

ARJA1

I1n (A) 1500 2000 2500Ith (kA) 50 50 50t (s) 1 1 1Measuring protection

cl.0.5 30 VA 30 VA 30 VA5P20 15 VA 15 VA 15 VA

E74

400

ARO1

I1n (A) 3150Ith (kA) 50t (s) 1Measuring* protection*

cl.0,5 30 VA5P20 7,5 VA

* the secondary current for measuring and protection can be of 1A or 5A.




Core balance CTS type transformer For cubicle AD1-AD2-AD4 with one single-pole cableTransformer ARC2■ single primary current, single secondary current for protection■ frequency 50-60 Hz

■ single primary current, double secondary current for measurement or protection ■ frequency 50-60 Hz

For cubicle AD1-AD2-AD4 with two single-pole cablesTransformer ARC3■ single primary current, double secondary current for measurement or protection■ frequency 50-60 Hz

CSP-type broad-range current transformer CSP type current sensors, designed for the Sepam 2000, work on the Rogowski coil principle.CSP sensors use a winding around an insulating core with no magnetic circuit, which prevents saturated and residual flux.Therefore, they are completely linear, and deliver an accurate secondary signal, a perfect image of the primary current, without distortion for both steady and transient states in the primary circuits.These sensors have much wider primary current ranges than current transformers do.The combining of CSP sensors and Sepam 2000 gives a consistent protection and measurement system. This in turn makes current sensor specification simpler (choosing from 3 sensors for a rated insulation level of 24 kV).

E72

965

I1n (A) 75 100 150 200 250 300 400 600Ith (kA) 50 50 50 50 50 50 50 50t (s) 1 1 1 1 1 1 1 1Protection 5P20 2.5 VA 2.5 VA 5 VA 5 VA 5 VA 5 VA 5 VA 7.5 VA

I1n (A) 200 250 300 400 600Ith (kA) 50 50 50 50 50t (s) 1Measuring protection

5 VA cl.1 10 VA cl.0.5 10 VA cl.0.5 15 VA cl.0.5 15 VA cl.0.55P20 2.5 VA 5 VA 5 VA 5 VA 5 VA

I1n (A) 750 1000 1250Ith (kA) 50 50 50t (s) 1Measuring protection

cl.0.5 20 VA 30 VA 30 VA5P20 7.5 VA 10 VA 10 VA

E34

400

CSP sensorSensors Rated current

CSP 3110 30 to 300 ACSP 3210 160 to 640 ACSP 3310 160 to 1600 ACSP 3410 500 to 2500 A For Sepam 2000, the primary current is chosen to be lower than the indicated range

Cubicle type I rated Isc (kA) 1 sec TypeAD1 - AD2 - AD4 30 - 300 40 CSP 3110AD1 - AD2 - AD4CL1 - CL3 - CL4

160 - 1250 50 CSP 3310CSP 3210

AD3 - AD4CL3 - CL4

500 - 2500 50 CSP 3410

CSP cannot be used with differential protection devices.They should be preferred in all other cases in which measurement and protection uses Sepam.AD4 and CL4 limited to 31.5 kA.




Voltage transformersThese supply power to:■ measuring, metering and monitoring devices ■ relays or protective devices■ auxiliary LV sources for various types of switchgear; all these devices are

protected and insulated from the MV section.They are installed at the bottom of the functional unit. In the withdrawable fuse version, the voltage transformers are attached to a side wall.The energized part is entirely encapsulated in an epoxy resin, which provides both electrical insulation and excellent mechanical strength.

They include the following models:■ with one insulated MV terminal, for connection between neutral and phase

conductors in three-phase systems with withdrawable MV fuseswith two insulated MV terminals, for connection between phase conductors.For cubicles AD1-CL1-GL1-TT1-AD2-CL2-GL2-AD3-CL3-GL3Transformer VRQ3n/S2■ phase-earth■ frequency 50-60 Hz

For cubicle AD4-CL4-TT4 Transformer VRQ1N/S2■ phase-earth■ frequency 50-60 Hz

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679

VRQ3

Primary voltage (kV)

3/3 3,3/3 5.5/3 6/3 6.6/3 10/3 11/3 13.8/3 15/3

1st second. voltage (V)

100/3 110/3 110/3 100/3 110/3 100/3 110/3 110/3 100/3

2nd second. voltage (V)

100/3 110/3 110/3 100/3 110/3 100/3 110/3 110/3 100/3

1st secondary accuracy class (VA)

30-50 VA cl.0.5

2nd secondary accuracy class (VA)

50 VA cl.0.5

E74

401

VRQ1

Primary voltage (kV) 20/3 22/31st second. voltage (V) 100/3 110/32nd second. voltage (V) 100/3 110/31st secondary accuracy class (VA)

50 VA cl.0,5100 VA cl.1

2nd secondary accuracy class (VA)

50 VA cl.3P

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680

For cubicle AD2-CL2-GL2-TT2-AD3-CL3-GL3Transformer VRC1/S1F■ phase-phase■ frequency 50-60 HzPrimary voltage (kV) 3.3 5.5 6.6 11 13.8 15Secondary voltage(V) 110 110 110 110 110 100Accuracy class (VA) 75 VA cl.0.5

VRC1/S1F



E
2867

6

For cubicle AD1 contactorThis transformer provides power to the coil in order to keep the magnetic circuit of the Rollarc contactor closed.

Transformer VRCR.S1■ phase-earth■ frequency 50-60 Hz

Primary voltage (kV) 3.3 5.5 6.6VRCR Secpondary voltage (V) 110 110 110

Accuracy class (VA) 50 VA cl.0.5

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678

CSH core balance CTCSH 120 and CSH 200 core balance CT's, provide more sensitive protection by direct measurement of earth fault currents.Specifically designed for the Sepam range, they can be directly connected to the Sepam "residual current" input.They are only different in terms of their diameter:■ CSH 120 - 120 mm internal diameter■ CSH 200 - 200 mm internal diameter core balance CT

CSH core balance CT


Switchgear Withdrawable parts
E
7442

7


Switchgear Withdrawable parts

These include:■ the circuit breaker or contactor with their opening and closing mechanism, the

disconnecter truck or the earthing truck■ the lever-type propulsion mechanism for racking in-pout■ interlocks to fix the withdrawable parts onto the fixed partMCSet circuit breakers LF1-2-3, SF1-2, switches and R400-R400D contactors use sulphur hexafluoride (SF6) for insulation and breaking.The live parts are housed in an insulating enclosure in the sealed pressure system in compliance with IEC 60056.

The devices used to equip the MCset range of functional units have outstanding features:■ long service life■ maintenance-free live parts■ high electrical endurance■ very low overvoltages■ operating safety■ insensitivity to the environment■ breaking capacity and dielectric strength maintained at atmospheric pressure ■ low filling pressure.

Withdrawable partsCircuit breaker

Earthing truck

Disconnector truck

EE

7441

8

A circuit breaker is a safety device enabling switching and protection of electrical distribution networks. Installed in the MCset cubicle, it protects all components situated downstream during a short circuit.

E72

893

The earthing truck is a safety feature which allows the cubicle busbar to be earthed. It is installed instead of the circuit breaker and has the same interlock possibilities.

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894

The disconnector truck enables the upper and lower part of the cubicle to be short-circuited. It is installed instead of the circuit breaker and has the same interlock possibilities.


Switchgear Withdrawable partsLF Circuit breaker

PresentationLF1-2-3 circuit breakers equip cubicles AD1-2-3 and CL1-2-3 for voltage values of between 7.2 and 17.5 kV.Breaking is based on the principle of self-expansion in SF6.The 3 main poles are contained in an insulating enclosure of the sealed system type, which requires no filling during the service life of the device. (In conformity with standard IEC 60056 appendix EE)This gas-tight enclosure is filled with SF6 at a low relative pressure of 0.15 Mpa (1.5 bars).Low pressure filling ensures reliable gas tightness.An optional pressure switch triggers an alarm in the event of a pressure drop.LF1-2-3 circuit breakers are actuated by RI type stored energy release mechanisms.

Principle of the self-expansion breaking techniqueThis technique is the result of a large amount of experience in SF6 technology and significant research effort.It combines the rotating arc technique with thermal expansion to create the conditions to cool and extinguish the arc.This enables the control mechanism energy to be reduced as well as arc contact erosion; mechanical and electrical endurance is therefore increased.

The operating sequence in a self-expansion breaking chamber whose moving part is actuated by the mechanical control is as follows:■ Fig. 1: the circuit breaker is closed■ Fig. 2: on opening of the main contacts (a), the current is transferred to the

breaking circuit (b)■ Fig. 3: on separation of the arcing contacts, an electrical arc appears in the expansion chamber (c); the arc rotates under the effect of the magnetic field created by the coil (d) which has the breaking current running through it; the overpressure produced by the increase in gas temperature in the gas expansion chamber (c) causes gas flow which blows the arc within the tubular arcing contact (e), thus causing it to extinguish when the current passes to zero.■ Fig. 4: circuit breaker open.

E72

887

E28

573-

1

E28

573-

2

Fig. 1 Fig. 2

E28

573-

3

E28

573-

4

Fig. 3 Fig. 4


Switchgear Withdrawable parts LF circuit breaker(cont.)

Characteristics of LF circuit breakers in MCset cubiclesIEC 60056 LF1/MCset1 LF2/MCset2 LF3/MCset3

Rated voltage kV, 50/60 Hz 7,2 12 7,2 12 17,5 7,2 12 17,5Insulation level kV, rms 50 Hz - 1 mn 20 28 20 28 38 20 28 38

kV, impulse 1,2/50 µs 60 75 60 75 95 60 75 95Rated nominal current A 630 ■ ■ ■ ■ ■(la) 1250 ■ ■ ■ ■ ■

2500 ■ ■ ■3150 ■ ■ ■

Breaking capacity Isc kA, rms 31,5 31,5 50 40 31,5 50 50 31,5Making capacity kA, peak 80 80 125 100 80 125 125 80Short time withstand current

kA, rms.3s 31,5 31,5 40 40 31,5 40 40 31,5kA, rms.1s 50 50 50 31,5

Capacitor breaking capacity(1)

A 440 440 440

Rated operating sequence

O-3min-FO-3min-FO ■ ■ ■O-0,3s-FO-3min-FO ■ ■ ■O-0,3s-FO-15s-FO ■ ■ ■

Approximate operating time for supply of releases at Un

ms opening 48 48 48breaking 65 65 65closing 65 65 65

Mechanical endurance Number of switching operations

10 000 10 000 10 000

(1) for other values please consult us.


Switchgear Withdrawable parts LF circuit breaker(cont.)

0551

20

RI operating mechanismLF range circuit breakers are actuated by an RI operating mechanism, that ensures a switching device closing and opening rate that is independent of the operator.This operating mechanism, which is always motorised, can perform remote control functions and enables fast reclosing cycles. The RI operating mechanism includes:■ a spring system that stores the energy needed to close and open the breaker■ a manual spring charging system■ an electrical motor-operated spring charging device that automatically recharges the mechanism as soon as the contacts close (recharging time <15s)■ two mechanical push buttons for opening and closing, accessible with the cubicle door open (circuit breaker in test position) For control with the door closed (circuit breaker racked in):■ circuit breaker opening by controlling the propulsion device■ circuit breaker closing optional■ an electrical closing system comprising a closing release for remote control and an anti-pumping relay■ an electrical opening system comprising one or more opening releases of the following type:■ single or double shunt■ undervoltage■ an operation counter■ an "operating mechanism charged" indication contact (M3)■ an spring charging limit switch contact (M1-M2)■ a black-white mechanical "open-closed" position indicator■ a multi-pin connector to isolate auxiliary circuits in the "racked out" position

Auxiliary contactsThe RI operating mechanism is equipped with a block of 14 auxiliary contacts including:■ 1 changeover contact for the electrical operating mechanism■ 1 changeover contact for indication■ 1 contact for the shunt releaseThe number of available contacts depends on the position of the available operating mechanism and the options chosen (see table opposite)

Contact characteristicsRated current 10 ABreaking capacity CA 10 A at 220 V

DC 1.5 A at 110 or 220 V (L/R y 0.01s)


Switchgear Withdrawable parts LF circuit breakers(cont.)

RI operating mechanism I

Auxiliaries diagram

Type of auxiliary Spring charging motor

Closing release

Opening release Available contactShunt Under

voltageNC NO Ch

Single DoubleSupply voltage AC (V) 50 Hz 48 - 110 - 125 - 220

60 Hz 120 - 240DC (V) 24 - 30 - 48 - 60 - 110 - 125 - 220

Consumption AC (VA) 300 160 160 320 400/100(1)

DC (W) 300 50 50 100 100/10(1)

possible combinations of auxiliairies ■ ■ ■ ■ 5 4 1and quantities or ■ ■ ■ 5 4 1

or ■ ■ ■ ■ 5 3 1or ■ ■ ■ 5 3 1or ■ ■ ■ 5 5 1or ■ ■ ■ 5 4 1or ■ ■ ■ 5 3 1or ■ ■ ■ 5 5 1

(1) pick-up/latched consumption.

J Circuit breakerKN Anti-pumping relayM Spring charging motorM1-M2 End of charging contactsM3 Operating mechanism charged indicationQF Circuit breaker auxiliary circuitsSE Latched tripping contactSm1 Closing push button (external)Sm2 Opening push button for shunt trip release

(external)Sm3 Opening push button for undervoltage release (external)Sn Closing disabling contact (external)SP Pressure switch contactSQ Device ready to operate contactYF Closing releaseY01-Y02 Shunt opening releaseYM Undervoltage opening release

RI circuit breaker operating mechanism

E20

003

Sm2

Sm3

Sm1

Sn

M3

KN

Y01

YM

M2

S

Y

JM1

M

Q

Y02

SP

SQ


Switchgear Withdrawable parts SF circuit breakers

PresentationSF range circuit breakers equip cubicles AD4 and CL4 for rated voltage values of 24kV.They work on the basis of the "puffer" type principle in SF6, which is used as a breaking and insulating medium.Each of the 3 poles have an independent insulating enclosure which forms a filled pressure system in compliance with IEC standard 60056 appendix EE.Each pole forms a gas-tight unit filled with low pressure SF6 at low relative pressure of 0.05 to 0.35 MPa (0.5 to 3.5 bars) according to the performance level required.No filling is required during the equipment's life.According to the performance levels, it is possible to optionally equip SF6 circuit breakers with a pressure switch to act on an alarm in the case of a pressure drop.SF6 range circuit breakers are actuated by a GMH type spring mechanism.

Principle of the puffer breaking technique.The main contacts and arcing contacts are initially closed (Fig. 1)

Pre-compression (Fig. 2)When the contacts begin to open, the piston slightly compresses the SF6 gas in the pressure chamber.

Arcing period (Fig. 3)The arc appears between the arcing contacts. The piston continues its downward movement.A small quantity of gas, directed by the insulating nozzle is injected across the arc. For the breaking of low currents, the arc is cooled by forced convection. However, for high currents, thermal expansion causes the hot gases to move towards the cooler parts of the pole unit.The distance between the two arcing contacts becomes sufficient for the current to be broken when it reaches the zero point, due to the dielectric properties of the SF6.

Sweeping overstroke (Fig. 4)The moving parts finish their movement and the injection of cold gas continues until the contacts are completely open.

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888

B18

-696

4

Fig. 3 Fig.4

Fig. 1 Fig. 2


Switchgear Withdrawable parts SF circuit breakers(cont.)

Characteristics of SF circuit breakers in MCset cubiclesElectrical characteristics SF1/MCset4 SF2/MCset4

Rated voltage kV, 50/60 Hz 24 24 24 24Insulation level kV, rms 50 Hz - 1 mn 50 50 50 50

kV, impulse 1,2/50 µs 125 125 125 125Rated nominal current (Ia)

A 630 ■ ■ ■1250 ■ ■2500 ■ ■

Breaking capacity Isc kA, rms 16 25 25 31,5Making capacity kA, peak 40 63 63 80Short time withstand current

kA, rms.3s 16 25 25 31,5

Capacitor breaking capacity

A 630 440 440 4401250 875 8752500 1750 1750

Rated operating sequence

O-3min-FO-3min-FO ■ ■ ■ ■O-0,3s-FO-3min-FO ■ ■ ■ ■O-0,3s-FO-15s-FO ■ ■ ■ ■

Approximate operating time for supply of releases at Un

ms opening 50 50breaking 65 65closing 70 70

Mechanical endurance Nb of switching operations 10 000 10 000



0283

68

GMH operating mechanismSF range circuit breakers are actuated by a GMH operating mechanism that ensures a switching device closing and opening rate that is independent of the operator. This operating mechanism, always motorised, enables remote operation and fast reclosing cycles.

The GMH operating mechanism includes:■ a spring system that stores the energy needed to close and open the breaker■ a manual spring charging system■ an electrical motor spring charging device that automatically recharges the mechanism as soon as the contacts close (recharging time <15s)■ two mechanical push buttons for opening and closing, accessible with the cubicle door open (circuit breaker in test position)■ an electrical closing system comprising a closing release for remote control and ■ an anti-pumping relay■ an electrical opening system comprising one or more opening releases of the following type:■ shunt ■ undervoltage■ an operation counter■ an optional "operating mechanism charged" indication contact■ an end of charging contact■ a black-white mechanical "open-closed" position indicator■ a multi-pin connector to isolate auxiliary circuits in the "racked out" position.

Auxiliary contactsThe GMH operating mechanism is equipped with a block of 14 auxiliary contacts including:■ 1 changeover contact for the electrical operating mechanism■ 1 changeover contact for indication■ 1 contact for the shunt release

Contact characteristicsRated current 10 ABreaking capacity CA 10 A at 220 V

DC 1.5 A at 110 or 220 V



GMH operating mechanism characteristics

Auxiliary diagram

Type of auxiliaires Spring charging motor

Closing release

Opening release Available contactShunt Under

voltageNC NO Ch

single doubleSupply voltage AC (V) 50 Hz 50 - 100 - 140 - 200 - 250 - 380

60 Hz 60 - 110 - 127 - 220 - 250DC (V) 24 - 33 - 48 - 60 - 110 - 136 - 220 - 260

Consumption AC (VA) 700 120 120 240 400/100(1)

DC (W) 570 70 70 140 100/10(1)

Possible combinations of auxiliaries and quantities

■ ■ ■ ■ 5 4 1or ■ ■ ■ 5 4 1or ■ ■ ■ 5 3 1or ■ ■ ■ ■ 5 3 1or ■ ■ ■ 5 3 1or ■ ■ ■ 5 5 1or ■ ■ ■ 5 4 1or ■ ■ ■ 5 3 1

(1) pick-up/latched consumption

J Circuit breakerM Spring charging motorYF Closing releaseM1-M2 End of charging contactQF Auxiliary circuit breaker contactsKN Anti-pumping relaySE Latched release contactY01-Y02 Shunt opening releasesYM Undervoltage opening releaseM3 Operating mechanism charged contactSP Pressure switch contactSQ Device ready to operate contactSM1 Closing push button (external)SM2 Opening push button for shunt releases (external)Sm3 Opening push button for undervoltage releases

(external)Sn Closing disabling contact (external)

GMH circuit breaker operating mechanism

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401

Sm1

Sn

KN

Y01

M2

SE

Y

M1

M

Q

S

SQ

M3

Sm2 Sm3

Y Y02


Switchgear Withdrawable parts Rollarc contactor

Description■ three main poles located in the pressurised enclosure■ electromagnetic operating mechanism with:■ magnetic latching for Rollarc 400■ mechanical latching for Rollarc 400D■ upstream and downstream terminals for power circuit connections■ pressure switch equipped with a NO contact for continuous monitoring of SF6

(option)■ mechanical interlocking of the contactor in the open position to prevent racking

in or out with the contacts closed■ 3 HPC fuses with striker pin and auxiliary contact to trip the contactor

An optimum solutionThe Rollarc contactor uses rotating arc breaking in SF6 gas. A magnetic field causes the arc to rotate between the arcing contacts, The field is created by the passage of the arc through a blow-out coil (Fig. 1).The rotation movement cools the arc by forced convention.The arc rotation rate depends on the current to be broken.The energy required to extinguish the arc is supplied by the electrical system.The operating mechanism is simple and economical.Modulation of the rotation rate ensures soft breaking without any dangerous overvoltage or current chopping.The Rollarc has a high breaking capacity and may be used without a time delay in combination with fuses.

Contactor operationAt the beginning of the opening operation, the main contacts and arcing contacts are closed (Fig. 2).The main circuit is interrupted by the separation of the main contacts (Fig. 3).The arcing contacts are still closed.The arcing contacts separate shortly after the main contacts. The arc that is created is subjected to the electromagnetic field produced by the coil, which is proportional to the current to be interrupted.The arc rotates rapidly, driven by the electromagnetic force and is cooled by forced convection (arcing period, Fig. 4)Due to the phase-shift between the current and the magnetic field, this force is still significant around the current zero point.At the zero point, the gap between the two arcing rings recovers its original dielectric strength due to the intrinsic properties of SF6 (contactor open, Fig. 5).

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889

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029

Fig. 1

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594

Fig. 4 Fig. 5

Fig. 2 Fig. 3


Switchgear Withdrawable parts Rollarc contactor(cont.)

Electrical characteristics of the Rollarc R400/R400D(1) in MCset cubicles

Endurance électrique

Maximum switchable powerCalculation assumptions (motor)Ratio between starting current Id and maximum current In:■ power factor x efficiency0.88 x 0.9 = 0.792 for 300 ≤ P < 600 kW0.9 x 0.92 = 0.828 for 600 ≤ P < 1100 kW0.92 x 0.94 = 0.865 for 1100 ≤ P < 5000 kW.■ Starting time < 10s■ Starts per hour y 3 according to IEC 60644

Operating schemesTemporary service or periodic serviceThe two curve systems (Fig. 1 and 2) can be used to determine the maximum current surges accepted by the Rollarc 400 contactor, in temporary or periodic service.■ temporary service: knowing the steady state current Ip, we determine the maximum duration Ts of a current surge Is from graph 1 (Fig. 2).■ periodic service: knowing 3 of the following 4 parameters:■ overcurrent Is■ overcurrent time Ts■ cooling current Ir■ cooling time TrWe determine the 4th parameter using graph 2 (fig. 1 and 2).

Operating time■ opening time 20 to 35 ms■ arcing time: < 20 ms■ closing time: 80 to 120 ms.

Rated voltage Dielectric strengh Max. operating current

Rated contactor current

Fuse breaking capacity

Short time withstand current (3)

50 Hz 1 mm Impulse 1,2/50µs

(kV) (kV rms) (kV peak) (A) (A) (kA rms) (kA rms.) (kA peak)7,2 20 60 250 400 50 50 12512 28 60 200 400 50 50 125(1) Rollarc 400: without mechanical latching. Rollarc 400D: with mechanical latching.(2) For operating voltages of 3 to 12 kV.(3) Limited by fuses.

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898

E13

151-

1

Fig. 1

E13

151-

2

Fig. 2

Operating voltage(kV)

Direct starting motor (kW) with 315 A fuses

Transformer with 315 A fuses

Capacitor (kVAr) with 315 A fuses

3,3 1170 1130 10004,16 1480 1420 12605 1780 1710 15205,5 1960 1880 16706 2130 2050 18206,6 2350 2250 200010 (fus. 200 A) 2000 2250 2000



FusesThe fuses used are of the FUSARC CF or FERRAZ type (Standard IEC 60282.1 and DIN 43625) with high breaking capacity.Substantial fault current limitation reduces the electrodynamic stresses on the load-side components (contactor, cables, CT, etc).A "blown fuse" device is used to open the three poles of the contactor..

Trip curvesThe trip curves for FUSARC CF (Fig. 1) and FERRAZ (Fig. 2) fuses are shown opposite.These are the average curves with an rms current value tolerance ± 10%.

Limitation curvesFUSARC CF (Fig. 3) and FERRAZ (Fig. 4) fuses have current limiting capacity.These curves give the maximum value of the limited breaking current Ic (in kA peak), as a function of the value Ip (in kA rms) of the presumed current that would be created if there were no protection. For further details ask for the fuse catalogues.

Operating mechanism

■ Rollarc 400 contactorThe contactor is closed by the pick-up coils.

The latching coils are inserted in the circuit at the end of the stroke of the contactor.

■ Rollarc 400D contactorThe contacts are mechanically latched in the closed position. They are opened by a shunt trip release which releases the latching.

Auxiliary contactsAuxiliary contacts are of the common point changeover type. The following are available:■ 9 contacts for the Rollarc 4■ 8 contacts for the Rollarc 4D

Contact characteristics: .

E32

130

Fig. 1

E32

151

Fig. 2

E32

131

Fig. 3

E32

152

Fig. 4

Rated voltage (kV) 7,2 12Max. fuse rating (A) 315 250*Breaking capacity (kA) 50 50* please consult us

Supply voltageDC: 48, 110, 127 and 220VAC: 50, 100, 110, 127 and 220VAcceptable variations: +10% -15%

Consumption Pick-up LatchedDC 1200 W 30 WAC 1200 VA 30 VA

Consumption Pick-up coil Shunt tripDC 1200 W 100 WAC 1200 VA 200 VA(1) optional supply possible by auxiliary transformer (see page 35)(2) supply time <0.12s

Rated current: 10ABreaking capacity: DC (L/R y 0,01 s) : 2 A at 110 V

AC (cos.ϕ u 0,3) : 10 A at 220 V



Auxiliaries diagramFU1 MV fusesFUBT LV fuseK1 R400 AC MV contactorP61 Operation counterS61 Locking contact activated by the pretrip push button and during racking in / out operationsSQ1 Contactor limit switch X20 LV connecter, 42 pins + earthX51 Control plateX61 Contactor terminal blockXAP Instantaneous auxiliary relayXE Instantaneous auxiliary control relayXU 0.6s time delay auxiliary relayYD Shunt trip coilYF Closing coils YM Latching coilS4 Trip button

Operating mechanism for Rollarc 400 contactors

E32

149

Operating mechanism for Rollarc 400D contactors

E32

150


Switchgear DI switch cubicle
E
7422

2

SwitchThe three rotating contacts are placed in an enclosure filled with gas to a relative pressure of 0.04 MPa (0.4 bars)The system offers maximum operating reliability:■ gas tightnessThe SF6 filled enclosure is of the "sealed pressure system type". Sealing tightness is always checked in the factory.■ safety■ the switch may be in one of three positions: "closed", "open" or "earthed", giving a natural interlocking system that prevents operator error.Moving contact rotation is driven by a fast acting mechanism that is independent of the operator.■ the device combines the breaking and disconnecting functions■ the SF6-enclosed earthing switch has a short circuit making capacity in compliance with standards■ breaking principleThe outstanding qualities of SF6 gas are used to extinguish the electrical arc. To increase cooling of the arc, a relative movement is created between the arc and the gas. The arc strikes when the fixed and moving contacts separate. The combination of the current and a magnetic field created by a permanent magnet causes the arc to rotate around the fixed contact, extending and cooling it until it is extinguished at current zero point. The distance between the fixed and moving contacts is then sufficient to withstand the recovery voltage.This system is both simple and dependable, and it provides improved electrical endurance due to very low wear of contacts.

E15

985

1 enclosure2 cover3 operating shaft4 fixed contact5 moving contact6 seal

E15

318

Contacts closed Contacts open Contacts earthed


Switchgear DI switch cubicle(cont.)

Motor option and releases

0414

97

Operating mechanism and auxiliariesCI2 double function operating mechanism■ Switch function:■ independent closing in two steps: - operating mechanism recharged by a hand lever or motor - stored energy released by a push button or trip unit■ independent opening by push button (O) or trip unit■ earthing switch functionindependent closing by a hand leverOperating energy is provided by the compression of a spring which causes the contacts to close or open after the neutral point is passed.■ auxiliary contacts ■ switch (2 O + 2 C)■ switch |(2 O + 3 C) and earthing switch (1 O + 1 C),■ switch (1C) and earthing switch (1 O + 1 C) if motor option■ motor option ■ opening release■ shunt ■ undervoltage (option)■ closing release: shunt trip■ fuse blown release: any fuse blown trips the opening of the switch.

0414

96

Un DC ACSupply (V) 24 48 110 125 220 120 230 (50 Hz) (1)

Motor option(W) 200(VA) 200(s) < 7 < 7

Opening releasesShunt (W) 200 250 300 300 300

(VA) 400 750Under-voltage

Pickup (W) 160(VA) 280 550

Latched (W) 4(VA) 50 40

Closing releasesShunt (W) 200 250 300 300 300

(VA) 400 750(1) please consult us for other frequencies.


Switchgear DI switch cubicle (cont.)

The fuse rating to install in DI2 and DI4 protection cubicles depends amongst other things on the following information:■ operating voltage■ transformer power■ fuse technology (manufacturer).Various types of fuses with medium energy strikers can be installed: ■ according to standard UTE NCF 64.210: Soléfuse type■ according to IEC recommendation 60282.1 and dimensions DIN 43.625: Fusarc CF type.

E.g.: General case for protection of a 400 kVA-10 kV transformer, we will choose Soléfuse fuses, rated at 43 A or Fusarc CF fuses rated at 50 A.

Transformer protection By fuse-switches

Fuse selection tableRating in A - no overload at - 5°C < t < 40°C.Please consult us for overloads or for operation above 40°C.

E74

428

E74

429

Soléfuse Fusarc CF

Rated voltage (kV)

Rating(A)

L (mm)

Ø(mm)

Weight(kg)

Soléfuse (UTE standards)7.2 6.3 to 125 450 55 212 10017.5 8024 6.3 to 63Fusarc CF (DIN standards)

7.2 125 292 86 3.312 6.3 to 20 292 50.5 1.2

25 to 40 292 57 1.550 to 100 292 78.5 2.8

24 6.3 to 20 442 50.5 1.625 to 40 442 57 2.250 to 63 442 78.5 4.180 442 86 5.3

Others (DIN standards)7.2 160 292 85 3.8

200 292 85 3.812 125 292 67 2

160 292 85 3.8200 292 85 3.8

17.5 125 442 85 5.424 100 442 85 5.4

125 442 85 5.4

Operating voltage(kV)

Transformer power (kVA) Rated voltage(kV)

25 50 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500

Soléfuse (standards UTE NFC 13.100, 64.210)5.5 6.3 16 31.5 31.5 63 63 63 63 63 7.210 6.3 6.3 16 16 31.5 31.5 31.5 63 63 63 6315 6.3 6.3 16 16 16 16 16 43 43 43 43 43 6320 6.3 6.3 6.3 6.3 16 16 16 16 43 43 43 43 43 63 24Soléfuse (general case, standard UTE NFC 13.200)

3.3 16 16 31.5 31.5 31.5 63 63 100 100 7.25.5 6.3 16 16 31.5 31.5 63 63 63 80 80 100 1256.6 6.3 16 16 16 31.5 31.5 43 43 63 80 100 125 12510 6.3 6.3 16 16 16 31.5 31.5 31.5 43 43 63 80 80 100 1213.8 6.3 6.3 6.3 16 16 16 16 31.5 31.5 31.5 43 63 63 80 17.515 6.3 6.3 16 16 16 16 16 31.5 31.5 31.5 43 43 63 8020 6.3 6.3 6.3 6.3 16 16 16 16 31.5 31.5 31.5 43 43 63 2422 6.3 6.3 6.3 6.3 16 16 16 16 16 31.5 31.5 31.5 43 63 63Fusarc CF (DIN standard)

3.3 16 25 40 50 50 80 80 100 125 125 160 200 7.25.5 10 16 31.5 31.5 40 50 50 63 80 100 125 125 160 1606.6 10 16 25 31.5 40 50 50 63 80 80 100 125 125 16010 6.3 10 16 20 25 31.5 40 50 50 63 80 80 100 100 125 200 1213.8 6.3 10 16 16 20 25 31.5 31.5 40 50 50 63 80 80 100 125 17.515 6.3 10 10 16 16 20 25 31.5 40 50 50 63 80 80 100 125 12520 6.3 6.3 10 10 16 16 25 25 31.5 40 40 50 50 63 80 100 125 2422 6.3 6.3 10 10 10 16 20 25 25 31.5 40 40 50 50 80 80 100


Switchgear Withdrawable part extraction

Extraction tableAdaptable to 3 cubicle widths, this extraction table enables:- the withdrawable part to be removed from the cubicle- the withdrawable part to be fitted into the cubicle.

Extraction and lowering tool (option)Adaptable to 3 cubicle widths, this extraction tool enables:- the withdrawable part to be removed from the cubicle- the withdrawable part to be introduced into the cubicle- the withdrawable part to be lowered to the ground- the withdrawable part to be lifted from the ground.

Racking handleThis handle enables:- the withdrawable part to be racked in / out- the earthing switch to be open / closed.

E72

890

E72

891

2001

60


Installation Implementation examplesMCset 1-2-3 layout(7.2 to 17.5 kV)

Line up switchboard(2 supply cubicles and 1 bussection at 12 kV - 31.5 kA

E74

430

Civil engineering with utilities space (MCset 7.2 to 17.5 kV)

E74

431

1 minimum dimensions to be complied with when installing the MCset switchboard2 minimum dimensions to be defined according to the cable bending radius 3 operating distance 4 distance needed to extract a functional unit from the switchboard without moving

the other units5 provide an exhaust tunnel above the switchboard when the room height is less

than 4 metres (see page 14)A anchor pointB adjustment pointNota : for further information, refer to the civil engineering, user and instruction manual.


Installation Implementation examplesMCset 4 layout(24 kV)

Line up switchboard (2 supplies and 1 bussection at 24 kV

E74

432

Civil engineering with utility space (MCset 24 kV)

E74

433

1 minimum distance to comply with 2 minimum distance to be defined according to the cable bending radius3 operating distance4 distance needed to extract a functional unit from the switchboard without moving

the other units 5 provide an exhaust tunnel above the switchboard when the room height is less

than 4 metres (see page 14)A anchor pointB adjustment pointNota : for further information, refer to the civil engineering, user and instruction manuals.


Installation Connections

Dry, single pole cableShort end piece, cold connectable

Dry, three-pole cableShort end piece, cold connectable

Connection possibilities using dry cables

E72

901

Switchgear resistance to ageing in a sub-station depends on 3 key factors■ the need for correctly made connections New cold connecting technologies offer easy installation and favour durability in time. Their design means they can be used in polluted environments with harsh atmospheres.■ the impact of relative humidity The installing of a heating element is essential in climates with high relative humidities and significant temperature differentials.■ ventilation control The dimensions of air vents must be appropriate for the dissipated energy in the sub-station. They must only sweep across the transformer environment.

Cold connected terminalsSchneider’s experience has led it to favour this technology wherever possible for optimum durability. The maximum acceptable cable cross-section for standard assemblies are: ■ 630 mm2 for incomer or feeder cubicles with single-pole cables ■ 400 mm2 for incomer or feeder cubicles with three-pole cables ■ 95 mm2 for transformer protection cubicles with fuses.Access to the compartment is only possible when the earthing switch is closed.Tightening torques for cables will be attained using a dynamo wrench set to 50 mN

Performance 3 to 24 kV - 400 A - 3150 ACross section mm2 50 to 630 mm2

Supplier All suppliers of cold connectable terminals: Silec, 3M, Pirelli, Raychem...

Number of cables 1 to 8 per phaseComments For greater cross section and number of cables, please consult us

Performance 3 to 24 kV - 400 A - 3150 ACross section mm2 50 to 400 mm2

Supplier All suppliers of cold connectable terminals: Silec, 3M, Pirelli, Raychem...

Number of cables 1 to 4 per phaseComments For greater cross-section, number of cables, please consult us

Number of câbles

AD1 AD1cont.

AD2 AD32500A

AD33150A

AD4 RD4(2) DI2 DI4

1 s’gle per phase ■ (1) ■ (1) ■ (1) ■ (1) ■ ■ ■

2 s’gle per phase ■ (1) ■ (1) ■ (1) ■ ■ (1) ■

3 s’gle per phase ■ ■ ■ ■ ■ ■

4 s’gle per phase ■ ■ ■ ■

6 s’gle per phase ■

8 s’gle per phase ■

1 thr. per cubicle ■ ■ ■ ■ ■

2 thr. per cubicle ■ ■ ■ ■ ■ ■

3 thr. per cubicle ■ ■ ■ ■ ■ ■

4 thr. per cubicle ■ ■ ■

(1) Possibility of installing LV core balance type transformers.(2) Specific cubicle: direct incomer.


Installation Connection
E
7289

5

Cable connection heightType of cubicle Configuration H (mm)

AD1 - AD2 630A LV core balance CT 650 (2)

1 set of 3 CT’s 5002 sets of 3 CT’s 465

1250A LV core balance CT 650 (2)

1 set of 3 CT’s 4802 sets of 3 CT’s 465

AD3 2500A 1 set of 3 CT’s 4352 sets of 3 CT’s 435

3150A 1 set of 3 CT’s 410AD4 - RD4 630A LV core balance CT 530

630 to 2500A 1 set of 3 CT's 4202 sets of 3 CT's 410

DI2 450DI4 650

figure 1 (1) an additional compartment under the cubicle is compulsory for AD3 3150A equipped with two sets of CT’s (cf. figure 2).(2) when installing with a LV core balance CT, use a LV core balance CT of type ARC3 when connecting with 2 cables (see page 33).

E72

896

■ the cubicles and cables requiring the maximum depth should be taken into consideration when determining the depth P of a switchboard cable duct (cf. figure 1).■ when using cables of length greater than 460 mm for MCset1-2-3 or 430mm for MCset4, install an additional compartment as marked (A) under the cubicle (cf. figure 2).

figure 2


Cubicle equipment

Equipment

SwitchgearCircuit breaker (9)

ContactorPressure switch

Fuse switchDisconnector truckEarthing truckFixed busbarsRacking position indication contact for the withdrawable part 3 NO / 3 NF

6 NO / 6 NFPadlocking of isolating shutters for withdrawable partsLocking of withdrawable part / cable compartmentDisabling of circuit breaker operating mechanismVoltage present indicatorLocking of mechanical racking of the withdrawable partLocking of with keylock or electromagnetic the racking of the withdrawable part

Earthing switch (SMALT)Earthing switchEarthing switch position indication contacts 3 NO / 3 NFEarthing switch position key locking(1)

Electromagnetic earthing switch position locking

TransformersVoltage transformers(1 per phase)

Without fuse Phase-phasePhase-earth

With plug-in fuses Phase-phasePhase-earth

Fuse melting indication contact 1 NOCurrent transformer Single set 3 TC

Double set 6 TCLV core balance CT(5)

ConnectionsConnection with cable terminal height > 460 mm (MCset 1-2-3) or 430 mm (MCset 4)Connection from top bar Connection by cable from the bottom

CubicleKey:b: standardv: option(1) basic equipment with earthing switch option(2) according to the room in which the MCset switchboard is installed, you can choose option 3 or 4 sides, and possibly an exhaust tunnel for hot gases (see page 14)(3) limited to In: 2500 A(4) impossible for AD3 3150 A(5) connection 1 or 2 cables per phase(6) possibility of 1 phase-phase VT(7) only for 630 A cubicle(8) 1 NO / 1 NC available(9) vacuum breaking circuit breakers: please consult us(10) compartment protection

Protection index Enveloppe IP3XIP4XIPX1

Compartiments (10) IP2XCAnti-arcing protection (2) 25 kA - 1 s

40 kA - 0,15 sLightning arrester

Busbars1250 A / 2500 A / 3150 A Exposed

InsulatedLV compartment key lockingLV compartment lighting (220 V DC)Anti-condensation heating element (220 V DC)


v

Type of cubicleAD1 AD1

cont.AD2 AD3 AD4 RD4 CL1 CL2 CL3 CL4 GL1 GL2 GL3 GL4 TT1 TT2 TT4 DI2 DI4

■ ■ ■ ■ ■ ■ ■ ■

■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

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■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ (1) ■ (1) ■ (1) ■ (1) ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (8) ■ (8)

■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ (1) ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ (6) ■ (6) ■ ■ ■ ■ ■ ■ (6) ■ ■ (6)

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ (4) ■

■ ■ ■ ■ (7) ■ (7)

■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■

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■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

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■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ (3) ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

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Current transformers (Selection guide)

Preferred current transformers: 7.2 to 24 kV secondary 1 A or 5 A

Type of cubicle Accuracy class ratio

AD1 AD1 fuse contactor

AD2 AD2 AD3CL3

CL1 CL2 AD4 CL4

Isc kA 1 sec. 31.5 NA (1) 40 50 50 31.5 50 31.5 31.5ratio number 1

40-80/1 or 52.5-5 VA - 5P20

■ 10/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■

50-100/1-52.5-5 VA - 5P20

■ 20/1-12.5 VA - 5P2015 VA - cl 0.5

■ ■ ■

75-150/1 or 52.5-5 VA - 5P20

■ 30/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■

Accuracy class and ratio

100-200/1-1 or 5-52.5-5 VA - 5P20

■ 40/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■

150-300/1-1 or 5-52.5-5 VA - 5P2010-20 VA - cl 0.5

■ 50/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■

200-400/1-1 or 5-55-10 VA - 5P207.5-15 VA - cl 0.5

■ 75/1-1 or 5/52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■

250-500/1-1 or 5-55-10 VA - 5P2010-20 VA - cl 0.5

■ 100/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■

600/1-1 or 5-57.5 VA - 5P2020 VA - cl 0.5

■ 150/1-1 or 5-57.5 VA - 5P1015 VA - cl 0.5

■ ■ ■ ■ ■ ■

750/1-1 or 5-57.5 VA - 5P2020 VA - cl 0.5

■ 200/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■ ■ ■ ■

1000/1-1 or 5-510 VA - 5P2030 VA - cl 0.5

■ 250/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■ ■ ■ ■ ■

1250/1-1 or 5-510 VA - 5P2030 VA - cl 0.5

■ 300/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■ ■ ■ ■ ■

1500/1-1 or 5-515 VA - 5P2030 VA - cl 0.5

400/1-1 or 5-52.5 VA - 5P2015 VA - cl 0.5

■ ■ ■

2000/1-1 or 5-515 VA - 5P2030 VA - cl 0.5

■ ■ ■

2500/1-1 or 5-515 VA - 5P20 30 VA - cl 0.5

■ ■ ■

3150/1-1 or 5-515 VA - 5P20 30 VA - cl 0.5

■

(1) Short circuit current withstand is co-ordinated with the current limited through the fuses. Other characteristics are available, including the possibility of having 3 secondary windings. Please consult us detailing the type of protection or measuring required as well as the impedance of the outside loads and the cabling.


A few references MCset, a product for all your electrical distribution applications

Industry■ oil, Girassol Mpg-Elf, Angola■ oil, Repsol, Santander, Spain■ oil, Sincor (Total), Venezuela■ pharmaceutical, Merck, Singapore■ automotive, Volvo, Belgium■ automotive, Ford, Germany■ cement production, Lafarge, France■ agri-food, Mastellone, Argentina

Infrastructure■ port of KSA Jeddah, Saudi Arabia■ Santafe de Bogota airport, Colombia■ Slim River Hospital, Malaysia■ water treatment, Degremont, Argentina

Energy■ Sarlux power station, Italy■ EVN thermal power station, Vietnam ■ Costa Nera SA power station, Argentina■ electrical distribution, DES (department of electrical services), Brunei■ renovation of the Chernobyl nuclear power station, Ukraine

A53

-MA

PP

E74

223

E74

224

E74

226

E74

225

note: Due to the constant progress in standards and equiptment the characteristics shown in the tests and images are only binding once expressly confirmed by ourselves.


Notes


Schneider Electric Limited Merlin Gerin Medium Voltage 123 Jack Lane Leeds LS10 1BSTel: +44 (0)113 290 3500 Fax: +44 (0)113 290 3710 Email: [email protected]

http://www.schneider.co.uk FEB 2002MVE 5168

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