sm6 switchgear

7/27/2019 SM6 Switchgear

1/51

MV distribution

Factory built assemblies

SM6 range3 to 24 kV

92 16 001 L

interrupteur sectionneurUn

Ith

In

24kV

12,5kA

400A- 50 /60Hz

Uw 125kV

IMA 31 ,5KA

HN 64 S 41 -IEC 298

IM

SM6

MERLIN GERIN

92 16 008 L

interrupteur sectionneurUn

Ith

In

24kV

12,5kA

400A- 50 /60Hz

Uw 125kV

IMA 31 ,5KA

HN 64 S 41 -IEC 298

IM

SM6

MERLIN GERIN

combin interrupteur fusiblesUn

Ith

In

24kV

12,5kA

200A- 50 /60Hz

Uw 125kV

IMA 31 ,5KA

HN 64 S 41 -IEC 298

QM

SM6

MERLIN GERIN

FUSIBLE MERLINGERINTYPEIN

PERCUTEURIEC9221107L

SOLE FUSE

63AMOYEN420

s Merlin Gerin s Square D s Telemecanique


2/511

pages

field of applicationc MV/LV transformer substations 2

c industrial distribution substations 3generalc introduction, standards, designation 4c characteristics 5

description of functionsc connection to the networks 6c protection 6-7c MV metering 8c functions required by private networks8-9

three-component unit 10-11

descriptionc switch and 12circuit breaker cubiclesc contactor cubicles 13c compartments 14-15c switch or disconnector and 16earthing switchc Fluarc SFset or SF1 circuit breaker 17c Rollarc 400 or 400D contactor 18c control/monitoring and 19protection functions

unit selectionc for connection to the network 20c for protection 21 to 26c for MV metering 27-28c for functions required 29 to 33by private networks

operating mechanisms 34-35

auxiliaries 36

instrument transformersc current transformers 37-38c voltage transformers 39

fuses 40-41

interlocks 42-43

connections 44 to 46installation 47-48

VM6 extension and layout examples 49

personal notes 50 to 52

SM6 rangecontents


3/512

SM6 rangefield of application

definitionsBelow is the list of SM6 range units used in

MV/LV transformer substations andindustrial distribution substations.cIM, IMC, IMB: incoming or outgoing unitcPM: fused switchcQM, QMC, QMB: fuse-switch combinationcCRM: contactor and contactor with fusescDM1-A, DM1-D: single-isolation circuitbreakercDM1-W, DM1-Z : withdrawable single-isolation circuit breakercDM2: double-isolation circuit breakercCM, CM2: voltage transformerscGBC-A, GBC-B: current and/or voltagemeasurementscNSM-cables: for main incoming andstandbycNSM-busbars: for main incoming andcables for standbycGIM: intermediate bus unit

cGEM: extension unitcGBM: connection unitcGAM2, GAM: incoming cableconnection unitcSM: disconnectorcTM: MV/LV transformer unit for auxiliariescother units: consult Merlin Gerin.

MV/LV transformer substations

IM IM CM DM2 QM PM IM

PM IM IM QM IM IM QMGIM PMGAM

incoming line of the main distribution switchboard

outgoing line toward other ring substations

other standardsMV consumer substations(MV metering)

outgoing line towardother ring substations

Combined public distribution/consumersubstation

incomingline ofthe maindistribution switchboard

UTE standards

MV consumer substation(LV metering)

MV/LV transformer substation

MV consumer substation(MV metering)

IM IM DM1-D GBC-A QM DM1-A


4/513

industrial distribution substations

IM IMCMDM1-A GBM QMC CM

PM NSM-2 TM NSM-1 QMSM

standby generator source

incoming line n 1of private MV substation

QMC DM1-D DM1-A

GBM

QM QM CMIMCGBMIMBIMCCM QM

Distribution switchboard

MV/LV transformer substations

Distribution switchboard

CRM CRM


standby utility source




5/514

SM6 rangegeneral

introductionThe SM6 range is made up of modular

units containing fixed or withdrawablemetal-enclosed SF6 switchgear, including:c switch-disconnectors;c Fluarc SF1 or SFset circuit breakers;c Rollarc 400 or 400D contactors;c disconnectors.

SM6 units are used for the MV section inMV/LV transformer substations in publicdistribution systems and MV consumer ordistribution substations up to 24 kV.

In addition to its technical characteristics,SM6 meets requirements concerningprotection of life and property as well asease of installation and operation.

SM6 units are designed for indoorinstallation (IP2XC). Their compact

dimensions are:c 375 to 750 mm wide;c 1600 mm high;c 840 mm deep.This makes for easy installation in smallrooms or prefabricated substations. Cablesare connected via the front.All control functions are centralised on afront plate, thus simplifying operation. Theunits may be equipped with a number ofaccessories (relays, toroids, instrumenttransformers, etc.).

standardsSM6 units meet all the followingrecommendations, standards andspecifications:c recommendations: IEC 298, 265, 129,

694, 420, 56;c UTE standards: NFC 13.100, 13.200,64.130, 64.160;c EDF specifications: HN 64-S-41, 64-S-43.

designationSM6 units are identified by a codeincluding:c an indication of the function, i.e. theelectrical diagram code:IM - QM - DM1 - CM - DM2 - etc.;c the rated current:400 - 630 - 1250 A;c the rated voltage:7.2 - 12 - 17.5 - 24 kV;c the maximum short-time withstandcurrent values:

12.5 - 16 - 20 - 25 kA/1s.ExampleFor a unit designated IM 400 - 24 - 12.5cIM indicates an incoming or outgoingunit;c400 indicates the rated current is 400 A;c24 indicates the rated voltage is 24 kV;c12.5 indicates the short-time withstandcurrent is 12.5 kA/1s.


6/515

main electrical characteristicsThe hereunder values are for working temperatures from -5C up to +40C and for

a setting up at an altitude below 1000 m.

rated voltage (kV) 7.2 12 17.5 24

insulation level

insulation 20 28 38 50

isolation 23 32 45 60

insulation 60 75* 95 125

isolation 70 85 110 145

breaking capacity

transformer off load (A) 16

cables off load (A) 25

25 630 - 1250 A

20 630 - 1250 A

16 630 - 1250 A

12.5 400 - 630 - 1250 AThe making capacity is equal to 2.5 times the short-time withstand current.

* 60 kV peak for the CRM unit.

50 Hz / 1 mn(kV rms)

1,2 / 50 s(kV peak)

short-timewithstand current(kA / 1 s)

general characteristicsMaximum breaking capacity

rated voltage (kV) 7.2 12 17.5 24

units

IM, IMC, IMB, 630 ANSM-cables, NSM-busbars

PM,QM, QMC, QMB 25 kA 20 kA

CRM 10 kA 8 kA

CRM with fuses 25 kA 12.5 kA

DM1-A, DM1-D, DM1-W, DM1-Z 25 kA 20 kA

DM2 20 kA 16 kA

Endurance

units mechanical electricalendurance endurance

IM, IMC, IMB IEC 265 IEC 265PM 1000 operations 100 breaksQM*, QMC*, QMB* at In, pf = 0.7NSM-cables, NSM-busbars

CRM IEC 56 IEC 56300 000 operations 100 000 breaks at 320 A

300 000 breaks at 250 A

DM1-A, DM1-D, DM1-W, DM1-Z IEC 56 IEC 56DM2 10 000 operations 40 breaks at 12.5 kA

10 000 breaksat In, pf = 0.7

* as per recommendation IEC 420, three breakings at pf=0.2c 1730 A / 12 kV,c 1400 A / 24 kV.

Electro-magnetic compatibilityc relays: 4 kV withstand capacity, as per recommendation IEC 801.4;c compartments:v electrical field:- 40 dB attenuation at 100 MHz;- 20 dB attenuation at 200 MHz;v magnetic field: 20 dB attenuation below 30 MHz.

Temperatures :c for stocking: from -40C to +70C,c for working: f rom -5C to +40C,c other temperatures, consult us.


7/516

SM6 rangedescription of functions

units for all functions:connection to the networks

Incoming or outgoing unitIM (375 or 500 mm)

Incoming or outgoing unitIMC (500 mm)

Outgoing unit, right or leftIMB (375 mm)

protection

Fused-switch unitPM (375 mm)

Fuse-switch combination unitQM (375 mm)

Fuse-switch combination unitQMC (625 mm)

Fuse-switch combination unit,right or left outgoing lineQMB (375 mm)

page

20

21

22


8/517

protection (cont.)

Contactor unitCRM (750 mm)

Single-isolation circuit breaker unitDM1-A(750 mm)

Withdrawable single-isolationcircuit breaker unitDM1-W (750 mm)

page

23

24

25-26Double-isolation circuit breaker unit,right or left outgoing lineDM2 (750 mm)

Withdrawable single-isolationcircuit breaker unit,right outgoing lineDM1-Z (750 mm)

Fused-contactor unitCRM (750 mm)

Single-isolation circuit breaker unit,right or left outgoing lineDM1-D (750 mm)


9/518

SM6 rangedescription of functions (cont.)

units for all functions:MV metering

Voltage transformers for mainswith earthed neutral systemCM (375 mm)

Voltage transformers for mainswith insulated neutral systemCM2 (500 mm)

Current and/or voltage measurement unit,right or left outgoing lineGBC-A (750 mm)

Current and/or voltage measurement unitGBC-B (750 mm)

functions required by private networks

page

27

28

29Intermediate bus unitGIM (125 mm)

Connection unit,right or left outgoing lineGBM(375 mm)

Extension unit VM6/SM6GEM(125 mm)


10/519

functions required by private networks (cont.) page

30

31

32-33

Incoming cable-connection unitGAM2 (375 mm)

Incoming cable-connection unitGAM (500 mm)

Disconnector unitSM (375 or 500 mm)

MV/LV transformer unitfor auxiliariesTM (375 mm)

N S

Cables power supply formain incoming line and standby lineNSM-cables (750 mm)

Busbars power supply formain incoming line on right orleft and cables for standby lineNSM-busbars (750 mm)

NS


11/5110

MERLIN

GERIN

SM6

MERLIN

GERIN

VIP13

SM6 rangethree-component unit

cubicle

switchgear

control/monitoring and protection

1

2

3

2

2

3

1


12/5111

factory-built cubicles

Switch cubicle Circuit breaker cubicle Contactor cubicle

incorporating SF6 switchgear

Switch-disconnector and earthing switch Fluarc SFset or SF1 circuit breaker Rollarc 400 or 400D contactor

and control/monitoring and protection functions

The Sepam range is a set of protection andcontrol units which have the capacity tofullfil all types of applications:c substations,c transformers,c motors,c capacitors,c generators.Each Sepam is an optimized solution interms of functions, performance and price.Each Sepam includes all the protection,metering, control, monitoring andannunciation functions required for itsassigned application.

The functions have very wide settingranges, all types of curves and cantherefore fit into any protection system.

VIPinverse time-delay autonomous

source transfer switchescontinuity of the electrical power supply

Designed for energy management anddistribution applications, these electronicunits automatically and safely switchbetween two different MV sources.

Note : these equipments (exept VIP andStatimax) are set up in the low-voltagecompartment of the concerning unit.

Sepamrange of digital multi-functionprotection systems

Integrated protection for the SFset circuitbreaker, without an auxiliary source ofpower. Used for the protection of thetransformers, this relay can also provide ahigh degree of discrimination.

Statimaxdefinite time-delay autonomous

General protection of MV consumersubstations (MV metering). Statimaxensures, without an auxiliary source ofpower and following a given time delay,protection in the event of phase or zero-sequence faults.


13/5112

MERLI

N GER

IN

SM6

SM6 rangedescriptionfactory-built cubicles

switch cubicles 5 compartments:1 switchgear: switch-disconnector and

earthing switch in an enclosure filled withSF6 and satisfying sealed pressuresystem requirements.

2 busbars: all in the same horizontalplane, thus enabling later switchboardextensions and connection to existingequipment using adaptation kits (a 125 mmduct for the VM6).

3 connection: accessible through front,connection to the lower switch-disconnectorand earthing switch terminals (IM cubicles)or the lower fuse-holders (PM and QMcubicles). This compartment is alsoequipped with an earthing switchdownstream from the MV fuses for thetransformer protection units (PM and QMcubicles).

4 operating mechanism: contains theelements used to operate the switch-disconnector and earthing switch andactuate the corresponding indications(positive break). The operating functionsmay be motorized (optional).

5 low voltage: installation of a terminalblock (if motor option installed), LV fusesand compact relay devices. If more spaceis required, an additional enclosure may beadded on top of the cubicle.

circuit breaker cubicle 5 compartments:1 switchgear: disconnector(s) and earth

switch(es) in an enclosure filled with SF6and satisfying sealed pressure systemrequirements.


3 connection and switchgear:accessible through front, connection to thedownstream terminals of the circuit breaker.Current and voltage transformers may beinstalled as needed. Two types of Fluarc

circuit breakers may be used:c SFset: autonomous set equipped with anelectronic protection system and specialsensors (requiring no auxiliary powersupply);c SF1: combined with an electronic relayand standard sensors (with or without anauxiliary power supply).

4 operating mechanism: contains theelements used to operate thedisconnector(s), the circuit breaker and theearthing switch and actuate thecorresponding indications. The circuitbreaker operating functions may bemotorized (optional).

5 low voltage: installation of compact

relay devices (Statimax) and test terminalboxes. If more space is required, anadditional enclosure may be added on topof the cubicle.

2

1

5

4

3

MERL IN

G ERIN

VIP13

MERL IN

G ERIN

VIP13

MERLI

N GERIN

SM6

2

1

5

4

3

4


14/5113

MERLI

N GER

IN

SM6

contactor cubicles 5 compartments:1 switchgear: disconnector and earthing

switch in an enclosure filled with SF6 andsatisfying sealed pressure systemrequirements.


3 connection and switchgear:accessible through front. This compartmentis also equipped with an earthing switchdownstream and current and voltagetransformers may be installed as needed.The Rollarc contactor may be equippedwith fuses. Two types may be used:cRollarc 400 with magnetic holding,cRollarc 400D with mechanical latching.

4 operating mechanism: contains theelements used to operate thedisconnector(s), the contactor 400 or 400Dand the earthing switch and actuate thecorresponding indications.

5 low voltage: installation of compactrelay devices and test terminal boxes.With basic equipment, an additionalenclosure is added on top of the cubicle.

operating safety

switches, circuit breakersand contactorsTotal operating safety is guaranteed in theSM6 range by the division of cubicles intofive distinct compartments and thesimplicity of switching operationsenhanced by functional interlock systems.

Simplicity of operationsc the entire operating mechanism iscentralised in the operating-mechanismcompartment;c operating and protection systems aremounted in the operating-mechanismcompartment of the Fluarc SFset circuitbreaker;c levers require little force to operate;c opening and closing operations usinglevers, push-buttons and trip units(accessories);cposition of disconnector(s) or switchindicated by animated mimic panel;c voltage presence monitored by neonlights connected to the capacitive dividerson the cable heads.

Disconnection and positive-breakindicationThe position indicator placed directly onthe shaft of the moving assemblydependably signals the position of thecontacts due to a direct and reliablemechanical transmission system. Theposition of the inspection windows incubicle panels may vary depending onfuture modifications in specifications andstandards.

2

1

5

4

3

4


15/5114

gamme SM6description (cont.)

Cubicles are made up of five compartmentsseparated by metal or insulating partitions.

switchgear compartment(switch and/or disconnector)

busbar compartment

This compartment is separated from thebusbar compartment and the connectioncompartment by the enclosure surroundingthe switch, the disconnector and theearthing switch.

The three insulated busbars are parallel-mounted. Connection is made to the upperpads of the enclosure using a fielddistributor with integrated captive screws.Ratings 400 - 630 - 1250 A.


16/5115

connection and switchgearcompartment (circuit breaker)

operating-mechanismcompartment

low-voltage compartment

The network cables are connected to theterminals of the switch and the earthingswitch. Transformer cables are connectedto the lower fuse holder or to thedownstream connection pads of the circuitbreaker. Cables may have either:c simplified terminations for dry-type one orthree-core cables*;c heat-shrink ends for dry-type or paper-insulated cables*.With basic equipment, the maximumallowable cross-section for cables is:c 630 mm2 for 1250 A incoming or outgoingunits.c 240 mm2 for 400 - 630 A incoming oroutgoing cubicles.c 95 mm2 for transformer protectioncubicles incorporating fuses.The earthing switch must be closed beforethe cubicle may be accessed. The reduceddepth of the cubicle makes for easyconnection of all phases. A studincorporated in the field distributor makes itpossible to position and secure the cable-end lug with a single hand.

This compartment contains the variousoperating functions for the:c switch and earthing switch;c disconnector(s);c circuit breaker;c contactor;and the voltage indicators.The operating-mechanism compartment forthe switch, earthing switch anddisconnector(s) may be accessed with the

cables and busbars energised and withoutisolating the substation.It also enables easy installation ofpadlocks, locks and standard LVaccessories (auxiliary contacts, trip units,motors, etc.).

If the switch operating mechanism ismotorised, this compartment is equippedwith a terminal block and LV fuses. It maybe enlarged by adding an enclosure with adoor on the top of the cubicle.These compartments may be accessedwith the cables and busbars energised andwithout isolating the substation.

* please consult us.


17/5116

appareil ferm appareil la terreappareil ouvert

SF6 rangedescription (cont.)SF6 switchgear

SF6, the switchgearmanufacturers gas

switch or disconnector and earthing switch

SM6 switch-disconnectors and earthingswitches and the SFset and SF1 circuitbreakers use sulphur hexafluoride gas(SF6) for insulation and breaking.The active parts are placed in an insulatingenclosure in accordance with the definitionof IEC 56/Appendix EE (1987 edition) forsealed pressure systems.SM6 devices offer remarkablecharacteristics:s long service life;s maintenance-free active parts;s high electrical endurance;s very low over-voltage level;s operating safety.

The three rotating contacts are placed in an

enclosure filled with gas to a relativepressure of 0.4 bars (400 hp). This systemoffers maximum operating reliability:cgas tightnessThe enclosure filled with SF6 gas satisfiessealed pressure system requirements andseal tightness is always checked in thefactory.coperating safetyv the switch may be in one of threepositions, closed, open or earthed,representing a natural interlocking systemthat prevents incorrect operation.Moving-contact rotation is driven by a fast-acting mechanism that is independent ofthe action of the operator.v The device combines the breaking anddisconnection functions.v The earthing switch placed in the SF6

has a short-circuit making capacity, incompliance with standards.vany accidental over-pressures areeliminated by the opening of the safetymembrane, in which case the gas isdirected toward the back of the unit, thusavoiding projection or other relatedphenomena in front.cbreaking principleThe exceptional qualities of SF6 gas areused to extinguish the electrical arc. Toincrease cooling of the arc, a relativemovement is created between the arc andthe gas. The arc appears when the fixedand moving contacts separate. Thecombination of the current and a magneticfield created by a permanent magnetprovokes arc rotation around the fixedcontact, resulting in arc extension andcooling until it is extinguished at currentzero.The distance between the fixed and movingcontacts is then sufficient to withstand therecovery voltage.This system is both simple and sure andalso provides improved electricalendurance due to very low wear oncontacts.

1 enclosure

2cover

3 operating shaft

4 fixed contact

5 moving contact

6 seal

2 6

1 3 4 5

contacts open contacts earthedcontacts closed

F

F

F

F

F

F

S


18/5117

Fluarc SFset or SF1 circuit breaker

SFset circuit breaker with integratedprotection relay and sensors

SF1 circuit breaker

The Fluarc SFset or SF1 circuit breaker is

made up of three separate poles mountedon a structure supporting the operatingmechanism. Each pole-unit houses all theactive elements in an insulating enclosurefilled with gas to a relative pressure of 0.5bars (500 hp). This system offers maximumoperating reliability:cgas tightnessThe enclosure filled with SF6 gas satisfiessealed pressure system requirements andseal tightness is always checked in thefactory.coperating safetyAs for switch-units, accidental over-pressures are eliminated by the opening ofthe safety membrane.cbreaking principleThe circuit breaker is based on the SF6 gasautocompression principle. The inherentqualities of SF6 and the soft breakresulting from this technique reduceswitching over-voltages.vprecompressionWhen the contacts begin to open, thepiston slightly compresses the SF6 gas inthe pressure chamber.varcing periodThe arc then forms between the arcingcontacts and the piston continues itsdownward movement. A small quantity ofgas, directed by the insulating nozzle, isinjected into the arc.The cooling of the arc is thus achievedthrough forced convection for theinterruption of low currents, however, duringthe interruption of high currents, thermalexpansion is responsible for the transfer of

the hot gases toward the cold parts of thepole unit. Toward current zero, the distancebetween the two arcing contacts issufficient for final interruption of the currentdue to the dielectric properties of the SF6gas.vsweeping over-strokeThe moving parts finish their travel whereasthe cold gas injection continues until thecontacts are completely open.

appareil ferm priode d'arc appareil ouvertprcompressioncontacts closed precompression arcing period contacts open

2

3

7

10

9

8

5

4

6

11

1

1 enclosure

2 bottom cover

3 operating shaft

4 main moving contact

5 moving arcing contact

6 fixed arcing contact7 sealing system

8 compression chamber

9 moving piston

10 valves

11 insulating nozzle


19/5118

SM6 rangedescription (cont.)SF6 switchgear(cont.)

Rollarc 400 or 400 D contactor

The three phases are placed in an

enclosure filled with SF6 gas to a relativepressure of 2.5 bars (2500 hp).This system offers maximum operatingreliability:cgas tighnessThe enclosure satisfies sealed pressuresystem requirements and seal tightnessis always checked in the factory.coperating safetyAccidental over-pressures are eliminatedby the opening of the safety membrane.cbreaking principleThe contactor implements on the rotatingarc technique using SF6.Rotation of the arc between the circulararcing contacts is driven by anelectromagnetic field.The field is produced by a solenoid through

which the current to be interrupted flowsat the moment of opening. The rotatingmovement cools the arc by forcedconvection.

At the beginning of the opening operation,the main contacts and the arcing contactsare closed.

The main circuit is cut by the separationof the main contacts. The arcing contactsare still closed.

Separation of the arcing contacts closelyfollows that of the main contacts.The arc is subjected to the electromagneticfield produced by the arc-quenching coil,proportional to the current to be interrupted.

The arc rotates rapidly, driven by theelectromagnetic forces and is thus cooledby forced convection.Due to the phase shift between the currentand the magnetic field, this force is stillsignificant at zero current.

At zero current, the gap between the twoarcing rings recovers its initial dielectricstrength due to the intrinsic properties ofSF6.

1 current terminal

2 electro-magnet

3 arc-quenching coil

4 fixed main contact

5 fixed arcing contact

6 moving main contact

7 moving arcing contact

8 sealing system

9 flexible connector

10 enclosure11 molecular sieve

5

7

6

9

1

2

3

4

8

10

11

1

appareil ferm contacts principaux spars priode d'arc appareil ouvertcontacts closed main contactsseparated

arcing period contacts open


20/5119

SF6 rangedescription (cont.)control/monitoring and protection functions

Sepam

The Sepam range is made up of digital

control/monitoring and protection units forMV distribution networks.Starting with the 1000 series designed fornetwork, motor or transformer protectionand current and voltage measurements,... on up to the 2000 series incorporatingcontrol/monitoring and protection functionswith control logic and communicationfeatures, Sepam is a complete range withdigital displays to meet all needs.

c wide dynamic adjustment range;c compatible with all types of sensors;c ease of use with logging of trip currents

for each phase and display of truemeasurement values requiring nocoefficients;c operating reliability with continuousmonitoring, autodiagnostics system and ahigh level of immunity to electromagneticinterference.

VIP

VIP protection systems for the Fluarc SFsetcircuit breaker protect against phase andzero-sequence faults and require noauxiliary power supply. There are two typesof protection, the VIP 13 with only phasesupervising and the VIP 200/201 units withphase and zero-sequence supervisingfor microprocessor-based protection. Allsystems offer a wide setting range for tripcurrents and all settings and operatingcharacteristics are designed for extendeddrift-free operation.

c protection against electromagneticinterference;c highly accurate thresholds and timedelays enable excellent discrimination on anetwork;c easy operation and maintenance with therelay integrated on the circuit breaker, withits sensors.

Statimax

Definite time-delay protection, without an

auxiliary source, against phase and zero-sequence faults. Statimax is made up of anelectronic setting device, three toroidvoltage-matching transformers, a zero-sequence transformer and a regulationdevice that supplies the power for theelectronics and the low-energy Mitoprelease.

c for all neutral systemsv for impedent neutral systems for insulated neutral systems

Note: The source transfer assemblies are described with the corresponding units on page 33.These equipments (except VIP and Statimax) are set up in a low voltage compartment.

selection tableprotection ANSI code typical applications protection units

network coupling transformer motor Sepam Statimaxauto. control P < 3MV 2000 1000

incomer outgoer yes no

3-phase 50 - 51 c c c c c c c c c

overcurrentzero-sequence 50N - 51N c c v v v c c c covercurrent

directional 67N czero-sequence current

undervoltage 27 c c

overvoltage 59 c c

thermal image 49 c c c c

zero-sequence 59N covervoltage

negative sequence 46 c c covercurrent

long start-up and rotor 51LR c c cblocking

maximum number 66 c c cof start-ups

single-phase 37 c c cundercurrent


21/5120

SM6 rangeunit selectionfor connection to the network

IMC(500 mm)Incoming or outgoing unit

IMB(375 mm)Outgoing unit (right or left)

Electrical characteristics

Basic equipment

Versions

c switch and earthing switch,c three-phase busbars,c CIT operating mechanism,c voltage indicators.

c connection pads for dry-type single-corecables.

c enlarged low-voltage compartment,c one to three CTs.

c manual or motorised operatingmechanism CI2 with opening and closingshunt trips.

c 630 A or 1250 A three-phase busbars.

c motor for operating mechanism,c auxiliary contacts,c additional enclosure or connectionenclosure for cabling from above,c key-type interlocks,c50 W heating element,c stands footing.

c phase comparator,cfault indicators,c double connection equipment for dry-type single-core cables.

c enlarged low-voltage compartment.

IM(375 or 500 mm)Incoming or outgoing unit

Optional accessories

c three-phase bottom busbars for outgoinglines (right or left).

c enlarged low-voltage compartment.

kA

12,5

kV12 17,5 24

16

7,2

630 A

400 - 630 A

20

25


22/5121

SM6 rangeunit selectionfor protection

PM(375 mm)Fused-switch unit


kA

12,5

20

kV12 17,5 24

25

16

7,2

200 A

Basic equipment

Versions


cswitch and earthing switch,cthree-phase busbars,cCIT operating mechanism,cconnection pads for dry-type single-corecables,cvoltage indicators,cdownstream earthing switch,cequipment for three UTE or DIN fuses.

coperating mechanism CI1 with openingshunt trip,c630 A or 1250 A three-phase busbars.

cmotor for operating mechanism,cauxiliary contacts,cenlarged low-voltage compartment,c additional enclosure or connectionenclosure for cabling from above,c key-type interlocks,c stands footing,c50 W heating element,c mechanical indication system for blownfuses,cUTE or DIN fuses.


23/5122

SM6 rangeunit selectionfor protection(cont.)

QM(375 mm)Fuse-switch combination unit

QMC(625 mm)Fuse-switch combination unit

QMB(375 mm)Fuse-switch combination unitoutgoing line right or left


Basic equipment

Version


kA

12,5

20

kV12 17,5 24

25

16

7,2

200 A

cswitch and earthing switch,cthree-phase busbars,cCI1 operating mechanism,cvoltage indicators,cequipment for three UTE or DIN strikerfuses,cmechanical indication system for blownfuses.

cconnection pads for dry-type single-core

cables,cdownstream earthing switch.

cthree-phase bottom busbars for outgoing

lines (right or left).


cmotor for operating mechanismwith opening shunt trip,cauxiliary contacts,c key-type interlocks,c50 W heating element,cstands footing,cindication contact for blown fuses,cUTE or DIN striker fuses,copening shunt trip or undervoltagerelease.

cenlarged low-voltage compartment,c additional enclosure or connectionenclosure for cabling from above.

c additional enclosure. cenlarged low-voltage compartment,c additional enclosure or connectionenclosure for cabling from above.

cenlarged low-voltage compartment,cthree CTs.


24/5123

CRM(750 mm)Contactor

CRM(750 mm)Contactor with fuses


kA

10

kV12

8

7,2

400 A

kA

25

kV12

12,5

7,2

250 A

20

16

Basic equipment

Version


c Rollarc 400 or 400D contactor,c disconnector and earthing switch,c three-phase busbars,c contactor operating mechanism R400with magnetic holding or contactor R400Dwith mechanical latching,c disconnector operating mechanism CS,c enlarged low-voltage compartment,c one to three current transformers,

c auxiliary contacts on contactor.c connection pads for dry-type single-corecables,c voltage indicators,c downstream earthing switch,c additional enclosure,c operation counter.


ccubicle :auxiliary contacts on the disconnector,protection using Sepam promable

electronic unit,one to three voltage transformers,key-type interlocks,50 W heating element,stands footing,"double connection" equipment for dry-

type single-core cables.

ccontactor:mechanical interlocking.

c DIN fuses.

c equipment fot three DIN fuses.


25/5124


DM1-A(750 mm)Single-isolation circuit breaker

DM1-D(750mm)Single-isolation circuit breaker,

outgoing line on right

DM1-D(750mm)Single-isolation circuit breaker,

outgoing line on left


Basic equipment

kA

12,5

20

kV12 17,5 24

16

7,2

630 - 1250 A

400 - 630 - 1250 A

25

Version


cFluarc SFset* or SF1 circuit breaker,cdisconnector and earth switch,cthree-phase busbars,ccircuit breaker operating mechanism RI,cdisconnector operating mechanism CS,cvoltage indicators,cenlarged low-voltage compartment,cthree CTs for Fluarc SF1 circuit breaker,cauxiliary contacts on circuit breaker.

cconnection pads for dry-type single-corecables,cdownstream earthing switch.

c630 A or 1250 A three-phase busbars.

ccubicleauxiliary contacts on the disconnector,additional enclosure or connection

enclosure for cabling from above,protection using Statimax relays,

or Sepam programable electronic unit forFluarc SF1 circuit breaker,three voltage transformers for Fluarc SF1

circuit breaker,key-type interlocks,50 W heating element,stands footing.

ccircuit breakermotor for operating mechanism,low-energy Mitop or undervoltage

opening release,opening and closing shunt trips,operation counter on manual operating

mechanism.

cthree-phase bottom busbars for outgoingline on left.

cthree-phase bottom busbars for outgoingline on right.

* only for the 400 - 630 A performances


26/5125

DM1-W(750 mm)*Withdrawable single-isolation

circuit breaker

DM1-Z(750 mm)*Withdrawable single-isolation circuit breakeroutgoing line on right


kA

12,5

20

kV12 17,5 24

16

7,2

630 - 1250 A

400 - 630 - 1250 A

25

kA

12,5

20

kV

16 1250 A

12 17,5 247,2

25

Basic equipment

Version


cFluarc SF1 circuit breaker,cdisconnector and earth switch,cthree-phase busbars,ccircuit breaker operating mechanism RI,cdisconnector operating mechanism CS,cvoltage indicators,cenlarged low-voltage compartment,cthree CTs,cauxiliary contacts on circuit breaker.

cearthing switch operating mechanism CC,cconnection pads for dry-type single-corecables,cdownstream earthing switch.



enclosure for cabling from above.protection using Statimax relays or

Sepam programable electronic unit,three voltage transformers,key-type interlocks,50 W heating element,stands footing.

* please, consult us for the 1250 A performances.

cthree-phase bottom busbars for outgoingline on right.


opening release,opening and closing shunt trips,operation counter on manuel operating

mechanism.


27/5126


DM2(750 mm)Double-isolation circuit breaker


DM2(750 mm)Double-isolation circuit breaker

outgoing line on left


kA

12,5

20

kV

16

630 A

400 - 630 A

12 17,5 247,2

Basic equipment

cFluarc SF1 circuit breaker,cthree-phase busbars,ccircuit breaker operating mechanism RI,cenlarged low-voltage compartment,cthree CTs,cauxiliary contacts on circuit breaker.

cdisconnector and earth switch,cdisconnector operating mechanism CS,



enclosure for cabling from above,protection using Statimax relays or

Sepam programable electronic unit,three voltage transformers,key-type interlocks,50 W heating element,stands footing.


opening release,opening and closing shunt trips,operation counter on manuel operating

mechanism.


28/5127

SM6 rangeunit selectionfor MV metering

CM(375 mm)Voltage transformers for mains

with earthed neutral system

CM2(500 mm)Voltage transformers for mains

with insulated neutral system


kA

12,5

20

kV12 17,5 24

25

16

7,2

50 A

Basic equipment

cdisconnector and earth switch,cthree-phase busbars,coperating mechanism CS,cLV circuit isolating switch,cLV fuses,cenlarged low-voltage compartment.

cthree 6.3 A UTE type fuses,cthree voltage transformers(phase-to-earth).

cthree 6.3 A UTE or DIN type fuses,ctwo voltage transformers(phase-to-phase).

Version

c630 A or 1250 A three-phase busbars


cauxiliary contacts,cadditional low-voltage enclosure,c50 W heating element,cstands footing,cindicating contact for blown fuses.


29/5128

GBC-A(750 mm)Current and voltage measurements,


GBC-A (750 mm)Current and voltage measurements,outgoing line on left

GBC-B (750 mm)Current (and voltage) measurements

Basic equipment


kA

12,5

20

kV12 17,5 24

25

16

7,2

630 - 1250 A

400 - 630 - 1250 A

c one to three CTs,c connection bars,c three-phase busbars.


cadditional enclosure,c three voltage transformers(phase-to-earth),c or two voltage transformers

(phase-to-phase).

SM6 rangeunit selectionfor MV metering (cont.)


30/5129

SM6 rangeunit selectionfor functions required by private networks

GIM(125 mm)Intermediate bus unit

GEM(125 mm)Extension unit VM6/SM6

GBM(375 mm)Connection unit,

outgoing line right or left

Basic equipment

c three-phase busbars. c connection bars,c three-phase busbars for outgoing lines(right or left).


c stands footing.

cadditional enclosure.

kA

12,5

20

kV12 17,5 24

25

16

7,2

630 - 1250 A

400 - 630 - 1250 A

kA

12,5

kV24

400 A



31/5130

GAM2 (375 mm)Incoming cable-connection unit

GAM (500 mm)Incoming cable-connection unit


Basic equipment

cthree-phase busbars,cvoltage indicators,cconnection pads for dry-type single corecables,cconnection bars.

coperating mechanism CC,cearthing switch.

kA

12,5

20

kV12 17,5 24

16

7,2

630 - 1250 A

400 - 630 - 1250 A

25

SM6 rangeunit selectionfor functions required by private networks(cont.)

Optional accessoriescauxiliary contacts,cenlarged low-voltage compartment,ckey-type interlocks.

kA

12,5

kV12 17,5 24

16

7,2

630 A

400 - 630 A

20

25


32/5131

SM(375 ou 500 mm*)Disconnector unit

TM(375 mm)MV/LV transformer unit

for auxiliaries


kA

12,5

20

kV12 17,5 24

25

16

7,2

630 - 1250 A

400 - 630 - 1250 A

kA

12,5

20

kV12 17,5 24

25

16

7,2

50 A

Basic equipment

c disconnector and earth switch,c operating mechanism CS.

c connection pads for dry-type single-corecables,c three-phase busbars,c voltage indicators.

c three-phase busbars,c two Solefuse-type 6.3 A fuses,c LV circuit isolating switch,cone voltage transformer (phase-to-phase),c enlarged low-voltage compartment.

Version


c auxiliary contacts,clow-voltage compartment,c key-type interlocks,c stands footing,c 50 W heating element.

c enlarged low-voltage compartment,c connection enclosure for cabling fromabove,c "double connection" equipment for dry-type single-core cables for the 400 - 630 Acubicles.


* 500 mm width for the 1250 A unit.

cmechanical indication system for blownfuses.


33/5132

SM6 rangeunit selectionfor functions required by private networks (cont.)

NSM - cables (750 mm)Cables power supply for main incoming

line and standby line

NSM - busbars (750 mm)Busbars power supply for main incoming

line on right and cables for standby line

NSM - busbars(750 mm)Busbars power supply for main incoming

line on left and cables for standby line

NSN S N S


Basic equipment

cmanual versionswitches and earthing switches,three-phase busbars,connections pads for dry-type single-core

cables,voltage indicators,mechanical interlocking,operating mechanism CI2,enlarged low-voltage compartments.

cautomatic versionswitches and earthing switches,three-phase busbars,connections pads for dry-type single-core

cables,voltage indicators,mechanical interlocking,motorised operating mechanisms CI2 with

24 V DC opening and closing shunt trips,enlarged low-voltage compartments and

additional enclosure,automatic-control equipment.


cmanuel versionmotor for operating mechanism with

24 V DC opening and closing shunt trips,opening and closing shunt trips,auxiliary contacts,additional enclosure,key-type interlocks,50 W heating element,stands footing,double connection equipment for dry-


cautomatic versionauxiliary contacts,key-type interlocks,50 W heating element,stands footing,double connection equipment for dry-


kA

12,5

kV12 17,5 24

16

7,2

630 A

400 - 630 A

20

25


34/5133

Automatic control equipment

Transfer switch RVH 215 Ic possibility of parallel operation,c autonomous 24 V DC supply for tripsunits and motor type:v-10C < T < +40C or,v0C < T < +60C,cwithout CT for lockout in the event ofdownstream faults;c with six toroidal type CTs with rectifiersfor downstream fault detection to preventtransfer in the following cases:v 80 A 10% earth fault;v 1200 A two-phase fault;v 450 A symmetrical three-phase fault.

Operating sequencesctransfer (figure 1)Four conditions are required for transfer tostandby source:v voltage loss on main feeder (Ua);v voltage presence on standby feeder (Us);v no downstream fault (optional);v above conditions maintained for5 seconds.c return to initial status.Return is not automatic but may beundertaken if there is no fault.

Transfer switch RCV 420c locking function in the event of a fault,c possibility of parallel operation,c autonomous 24 V DC supply for trip unitsand motor type:v-10C < T < +40C or,v0C < T < +60C,cterminal block for external orders to blocktransfer.

Operating sequencec transfer to standby source (figure 1)1. voltage loss on main feeder (Ua) lastingfor a time set to 0.1 - 0.2 - 0.4 - 0.6 - 0.8 - 1- 1.5 - 2 s (T1) and voltage present onstandby feeder (Us).2. transfer.c transfer back to main source (figure 2)1. voltage present on main feeder (Ua)lasting for a time set to 5 - 10 - 20 - 40 - 80- 100 - 120 s (T2).2. return transfer.

Transfer switch RNS 11c locking function in the event of a fault,cautonomous 24 V DC supply for trip unitsand motor type:v-10C < T < +40C or,v0C < T < +60C,cterminal block for external orders to blocktransfer.

Operating sequencec transfer to standby generator (figure 1)1. voltage loss on main feeder (Ua) lastingfor a time set from 1 to 15 s (T1 is factoryset).2. generator start-up (T2).3. transfer when generator voltage Us ispresent (external relay).c transfer back to main source (figure 2)1. voltage present on main feeder (Ua)lasting for a time set from 60 to 120 s (T3 isfactory set).

2. return transfer.3. generator shutdown 6 seconds afterreturn transfer (T4).

Ua

t

Us

t

U

t

5 s tr

Fig. 1

tr: transfer switch response time (70 to 80 ms)

Ua

t

Us

t

U

t

T1

Fig. 1

Ua

t

Us

t

U

t

tr

Fig. 2

T2tr


Ua

t

Us

t

U

tFig. 1

Ua

t

Us

t

U

t

T4

Fig. 2

T3T1 trT2

tr



35/5134

SM6 rangeoperating mechanisms

The control devices required for the unitoperating mechanisms are centralised onthe front panel. The different types of

operating mechanism are presented in thetable opposite. Operating speeds do notdepend on the operator, except for the CS.

For the interlocks, consult the table page 42according to concerned cubicles.

Unit operating mechanisms

units operating mechanism

CIT CI1 CI2 CS CC RI

IM, IMC, IMB s s

PM s s

QM, QMC, QMB s

DM1-A, DM1-D, DM2 s s

DM1-W, DM1-Z s s s

CM, CM2 s

CRM s

NSM-cables, NSM-busbars s

GAM s

SM s

TM s

s standards option

Double-function operating mechanismCIT

sswitch function:independent-operation opening or closingby lever or motor.searthing-switch function:independent-operation opening or closingby lever.Operating energy is provided by acompressed spring which, when released,provokes closing or opening of thecontacts.

cauxiliary contactsvswitch (2 O + 2 C)vswitch (2 O + 3 C) and earthing switch(1 O + 1 C)vswitch (1 C) and earthing switch(1 O + 1 C) if motor optioncmechanical indicationsfuses blown in unit PMcmotor option

Double-function operating mechanismCI1

cswitch function:v independent-operation closing by lever ormotor.Operating energy is provided by acompressed spring which, when released,provokes closing of the contacts.v independent-operation opening by push-button (O) or trip units.cearthing-switch function:independent-operation closing and openingby lever.

Operating energy is provided by acompressed spring which, when released,provokes closing or opening of thecontacts.

Double-function operating mechanismCI2

cswitch function:v independent-operation closing in twosteps:- operating mechanism recharging by leveror motor;- stored energy released by push-button (I)or trip unit.v independent-operation opening by push-button (O) or trip unit.cearthing-switch function:independent-operation closing and openingby lever.Operating energy is provided by acompressed spring which, when released,provokes closing or opening of thecontacts.

cauxiliary contactsv switch (2 O + 2 C)v switch (2 O + 3 C) and earthing switch(1 O + 1 C)vswitch (1 C) and earthing switch(1 O + 1 C) if motor optioncopening releaseshunt tripcclosing releaseshunt tripcmotor option

cauxiliary contactsv switch (2 O + 2 C)v switch (2 O + 3 C) and earthing switch(1 O + 1 C)vswitch (1 C) and earthing switch(1 O + 1 C) if motor optionvfuses blown (1 C)cmechanical indicationsfuses blown in units PM, QMcopening releasesv shunt trip

v undervoltage for unit QMcmotor option


36/5135

Double-function operating mechanismCS

c

switch and earth switch functions:dependent-operation opening and closingby lever.

c

auxiliary contactsv disconnector (2 O + 2 C) for units DM1-A,DM1-D, DM1-W, DM2 and CRM withoutVT,v disconnector (2 O + 3 C) and earthingswitch (1 O + 1 C) for units DM1-A, DM1-D,DM1-W, DM2 and CRM without VT,v disconnector (1 O + 2 C) for units CM,CM2, TM, DM1-A, DM1-D, DM2 and CRMwith VT.v mechanical indicationfuses blown in units CM, CM2 and TM.

Single-function operating mechanismCC

cearthing switch function:independent-operation opening and closingby lever.Operating energy is provided by acompressed spring which, when released,provokes opening or closing of the contacts.

cauxiliary contactsearthing switch (1 O + 1 C)

Single-function operating mechanismRI

ccircuit-breaker function:v independent-operation closing in twosteps. First operating mechanism rechargeby motor or lever, then release of the storedenergy by push-button (I) or trip unit;v independent-operation opening by push-button (O) or trip units.

cauxiliary contactsv circuit breaker (4 O + 4 C)v mechanism charged (1 C)c mechanical indicationoperation countercopening releasesv Mitop (low energy)v shunt tripv undervoltagecclosing releaseshunt tripc motor option


37/5136

SM6 rangeauxiliaries

Motor option and releases forswitch-unitsThe operating mechanisms CIT, CI1 and

CI2 may be motorised.

Un DC AC

power supply (V) 24 48 110 125 120 230 (50 Hz)*

motor option

(W) 200

(VA) 200

(s) < 5 < 5

opening releases

Mitop (low energy)(W) 3

shunt trip (W) 200 250 300 300

(VA) 400 600

undervoltage pick-up (W) 160

(VA) 280 550

hold (W) 4

(VA) 50 40

closing release

shunt trip (W) 30

(VA) 60

Motor option and releases forcircuit breakersOperating mechanism RI may be equippedwith the motor option for the rechargingfunction.

Un DC AC

power supply (V) 24 48 110 125 220 120 230 (50 Hz)*motor option

(W) 300

(VA) 380

(s) 15 15

opening release *Mitop (low energy)(W) 3

shunt trip (W) 85

(VA) 180

undervoltage pick-up (W) 160

(VA) 280 550

hold (W) 10

(VA) 50 40

closing release

shunt trip (W) 85

(VA) 180

* possible combinations between opening releasesSF1 SFset

Mitop (low energy) s s s s s s

shunt trip s s s s

undervoltage s s s s

* please consult us for other frequencies.


38/5137

for unit IMCtransformer ARM2/N2Fc single primary winding

c double secondary winding for measurement and protection

Short-time withstand current Ith (kA)

I1n (A) 50 75 100 150 400 600

Ith (kA) 12.5 16 25

t (s) 0.8 1 0.8 1

5 A 7.5 VA - class 0.5

1 A 1 VA - 10P30

5 A 10 VA - 5P10

SM6 rangeinstrument transformers

current transformers

for unit QMCtransformer ARM1/N1Fcsingle primary windingcsingle secondary winding for measurement or protection


I1n (A) 10 15 20 25 30 50 75 100 150 200

Ith (kA) 0.8 1.2 1.6 2 2.4 4 6 8 12.5

t (s) 1

5 A 7.5 VA - class 0.5

5 A 5 VA - 5P15

measurementandprotection

measurementorprotection


for units CRMtransformer ARJP1/N2Fcsingle primary windingcdouble secondary winding for measurement and protection


I1n (A) 50 100 150 200

Ith (kA) 10

t (s) 1

5 A 7.5 VA - class 0.5

5 A 5 VA - 5P10

Note: Please consult us for other characteristics.


39/5138

current transformers

SM6 rangeinstrument transformers (cont.)

Note: Please consult us for other characteristics.

for 400 - 630 A units DM1-A, DM1-D, DM1-W, DM2, GBC-A, GBC-B

transformer ARM3/N2Fcdouble primary windingcdouble secondary winding for measurement and protection


I1n (A) 10-20 20-40 50-100 100-200 200-400 300-600

Ith (kA) 5 12.5 25

t (s) 1 0.8 1

5 A 7.5 VA - class 0.5

1 A 1 VA - 10P30

5 A 5 VA - 5P10 5 VA - 5P15 5 VA - 5P10


for 1250 A units DM1-A, DM1-D, DM1-W, DM1-Z, GBC-A, GBC-Btransformer ARJP2/N2Fcsingle primary windingcdouble secondary winding for measurement and protection


I1n (A) 600 750

Ith (kA) 25

t (s) 1

1 A 20 VA - class 0.5

1 A 10 VA - 5P20

5 A 20 VA - class 0.5

5 A 10 VA - 5P20


for 1250 A units DM1-A, DM1-D, DM1-W, DM1-Z, GBC-A, GBC-Btransformer ARJP3/N2Fcsingle primary windingcdouble secondary winding for measurement and protection


I1n (A) 1000 1250

Ith (kA) 25

t (s) 1

1 A 30 VA - class 0.5

1 A 15 VA - 5P20

5 A 30 VA - class 0.5

5 A 15 VA - 5P20



40/5139

voltage transformers

Note: The above mentioned voltage transformers are grounded neutral.For other characteristics, please consult us.

rated voltage (kV) 24

primary voltage (kV) 10/ 3 15/ e 15-20/e 20/e

secondary voltage(V) 100/ e

thermal power (VA) 250 150-250 250

accuracy class 0.5 0.5-1 0.5 0.5-1

rated output for 30 30 30single primary winding (VA)

rated output for 30-50

double primairy winding (VA)

for units CM, DM1-A, DM1-D, DM2, GBC-A, GBC-B

transformers VRQ2-n/S1 (phase/masse)


primary voltage (kV) 10 15 20

secondary voltage (V) 100

thermal power (VA) 500

accuracy class 0.5

rated output for 50single primary winding (VA)

for units CM2, GBC-A, GBC-Btransformer VRC2/S1 (phase-to-phase)

for unit TMtransformer RV9 (phase-to-phase)


primary voltage (kV) 10 15 20

secondary voltage (V) 220

output (VA) 2500

4000


41/5140

SM6 rangefuses

transformer protectionFuse ratings for SM6 protection units such

as the PM, QM, QMB and QMC depend,among other things, on the followingcriteria:c service voltagec transformer ratingc fuse technology (manufacturer).Different types of fuses with medium loadedstriker may be installed:c Solefuse fuses as per standard UTENFC 64.210c Fusarc CF fuses as per IECrecommendation 282.1 and DINdimensions 43.625.Example:For the protection of a 400 kVA transformerat 10 kV, select either Solefuse fuses rated43 A or Fusarc CF fuses rated 50 A.

Please consult us on installation

of fuses from other manufacturers.

55

3545035

6

23

fuse dimensionsSolefuse (UTE standard) Fusarc CF (DIN standard)

rated rating L weightvoltage(A) (mm) (mm) (kg)(kV)

7,2 125 292 86 3.3

12 6.3 to 20 292 50.5 1.2

25 to 40 292 57 1.5

50 to 100 292 78.5 2.8

125 442 86 4.6

24 6.3 to 20 442 50.5 1.6

25 to 40 442 57 2.2

50 to 63 442 78.5 4.1

80 to 100 442 86 5.3

rated rating L weightvoltage (A) (mm) (mm) (kg)(kV)

7.2 6.3 to 125 450 55 2

12 100

17.5 80

24 6.3 to 63

selection table (rating in A, no overload, - 5 C < < 40 C).Please consult us for overloads and operation over 40C.

type of service transformerrating (kVA) ratedfuse voltage 25 50 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 voltage

(kV) (kV)

UTE NFC standards: 13.100, 64.210

Solefuse5,5 6.3 16 31.5 31.5 63 63 63 63 63 7.2

10 6.3 6.3 16 16 31.5 31.5 31.5 63 63 63 63

15 6.3 6.3 16 16 16 16 16 43 43 43 43 43 63

20 6.3 6.3 6.3 6.3 16 16 16 16 43 43 43 43 43 63 24

General case, UTE NFC standard 13.200

Solefuse3,3 16 16 31.5 31.5 31.5 63 63 100 100 7,2

5,5 6.3 16 16 31.5 31.5 63 63 63 80 80 100 125

6,6 6.3 16 16 16 31.5 31.5 43 43 63 80 100 125 125

10 6.3 6.3 16 16 16 31.5 31.5 31.5 43 43 63 80 80 100 12

13,8 6.3 6.3 6.3 16 16 16 16 31.5 31.5 31.5 43 63 63 80 17.5

15 6.3 6.3 16 16 16 16 16 31.5 31.5 31.5 43 43 63 80

20 6.3 6.3 6.3 6.3 16 16 16 16 31.5 31.5 31.5 43 43 63 24

22 6.3 6.3 6.3 6.3 16 16 16 16 16 31.5 31.5 31.5 43 63 63

Fusarc CF3,3 16 25 40 50 50 80 80 100 125* 160* 200* 7.25,5 10 16 31.5 31.5 40 50 50 63 80 100 125 125 160*6,6 10 16 25 31.5 40 50 50 63 80 80 100 125 125 160*10 6.3 10 16 20 25 31.5 40 50 50 63 80 80 100 100 160* 160* 1213,8 6.3 10 16 16 20 25 31.5 31.5 40 50 50 63 80 80 100* 125* 160* 2415 6.3 10 10 16 16 20 25 31.5 40 50 50 63 80 80 100* 125* 160*20 6.3 6.3 10 10 16 16 25 25 31.5 40 40 50 50 63 80 100* 125*

22 6.3 6.3 10 10 10 16 20 25 25 31.5 40 40 50 50 80 80 100*

* please, consult us.

6

27L

45

3333


42/5141

motor protectionwith CRM units

selection of fusesThe current rating of fuses installed in CRMunits depends on:c motor current rating In,c starting current Id,c frequency of starts.The fuses rating is calculated such that acurrent equal to twice the starting currentdoes not blow the fuse within period equalto the starting time.The adjacent table indicated the ratingswich should be used, based on thefollowing assumptions:c direct on-line startup,c Id/In 6,c pf = 0.8 (P < 500 kW) or0.9 (P > 500 kW),c = 0.9 (P < 500 kW) or

0.94 (P > 500 kW),The indicated values are for Fusarc fuses(to DIN standard 43-625).Example:Consider a 950 kW motor at 5 kV.

Id = 6 x In = 780 AThen select the next higher value, i.e. 790 A.For six 5-second starts per hour, selectfuses rated 200 A.

Note :The same motor could not be protected for12 starts per hour since the maximumservice voltage for the required 250 A rated

fuses is 3.3 kV.

In = = 130 AP

e . U . . pf

starting starting 5 10 20 maximum

current time (s) service

(A) number of 6 12 6 12 6 12 voltagestarts (kV)

per hour

1410 250

1290 250 250 250

1140 250 250 250 250 250

1030 250 250 250 250 250 250 3.3kV

890 250 250 250 250 250 250

790 200 250 250 250 250 250

710 200 200 200 250 250 250

640 200 200 200 200 200 250

610 200 200 200 200 200 200 6.6 kV

540 160 200 200 200 200 200

480 160 160 160 200 200 200

440 160 160 160 160 160 200310 160 160 160 160 160 160

280 125 160 160 160 160 160

250 125 125 125 160 160 160

240 125 125 125 125 125 160

230 125 125 125 125 125 125

210 100 125 125 125 125 125

180 100 100 100 100 100 125

170 100 100 100 100 100 100 11 kV

Maximum switchable power (kW)

(direct on-line startup, six 5 sec. starts per hour)

service voltage (kV) 3.3 4.16 5 5.5 6 6.6 10 11

without fuses 1550 1960 2360 2590 2830 3110 4710 5180with fuses 100 A 140 180 215 240 260 285 435 480

200 A 625 800 960 1060 1155 1270250 A 1135

Replacement of fusesWhen fault clearance results in one or twoblown fuses, it is still common practice to

replace only the blown fuses.However, though the remaining fuse(s)may apparently be in good condition, theiroperating characteristics are generallyreduced due to the short-circuit. If non-blown fuses remain in service, they mayblow even at very low over-current values.In systems where continuity of service isof importance, it is recommended toreplace all three fuses, in compliancewith IEC recommendation 282.1.

Access to fusesAccess is via the front with the front panelremoved. Fuses may be removed without

tools by simply pulling them forward. Thefield deflector pivots and automaticallyreturns to its position.


43/5142

SM6 rangeinterlocks

functional interlocksInterlocks comply with IEC

recommendation 298 and EDFspecification HN 64-S-41.

Switch unitsc the switch can be closed only if theearthing switch is open and the accesspanel is in position.c the earthing switch can be closed onlyif the switch is open.c the access panel for connections canbe opened only if the earthing switch isclosed.c the switchislocked in the open positionwhen the access panel is removed. Theearthing switch may be operated for tests.

Circuit-breaker unitsc the disconnector(s) can be closed onlyif the circuit breaker is open and the access

panel is in position.c the earth switch(es) can be closed onlyif the disconnector(s) is/are open.c the access panel for connections canbe opened only if:v the circuit breaker is locked openv the disconnector(s) is/are openv the earth switch(es) is/are closed.

Note: It is possible to lock thedisconnector(s) in the open position for no-load operations with the circuit breaker.

key-type interlocks

In addition to the functional interlocks, eachdisconnector and switch include:sbuilt-in padlocking capacities (padlocks

not supplied)sfour knock-outs that may be used forkeylocks (supplied on request) formechanism locking functions.

Unit interlock

units interlock

A1 A3 A4 C1 C4 P1 P2 P3 P5

IM, IMB, IMC s s s

PM, QM, QMB, QMC, s s sDM1-A, DM1-D, DM1-W, DM1-Z

CRM s

NSM s s

GAM s

SM s s

type A1

O

O

type C1

S

S

type C4

S

O

O

S

outgoing unitsAim :cto prevent the closing of the earthingswitch on a transformer protection unitunless the LV circuit breaker is locked in"open" or "disconnected" position.

cto prevent the access to the transformer ifthe earthing switch for transformerprotection has not first been closed.

cto prevent the closing of the earthingswitch on a transformer protection unitunless the LV circuit breaker is locked in"open" or "disconnected" position.cto prevent the access to the transformer ifthe earthing switch for transformerprotection has not first been closed.


44/5143

panneau ou porte

lgende serrures avec :

cl absente

cl libre

cl prisonnire

type A3

O

type A4

O

O

O

type P1

type P2

O X

OX

O O

X

X

type P3

X O

XO

A

type P5

P

P

ring unitsAim :c

to prevent the closing of the earthingswitch of a load-side cubicle unless theline-side switch is locked "open".

cto prevent the simultaneous closing oftwo switches.

cto prevent the closing of an earthingswitch if the switch of the other unit has notbeen locked in the open position.

cto prevent on-load operation of thedisconnector unless the switch is locked"open",cto prevent the closing of the earthingswitches unless the disconnector and theswitch are locked "open".

cto prevent on-load operation of the

disconnector unless the switch is locked"open",cto prevent the closing of the earthingswitches with the unit energised, unless thedisconnector and the switch are locked"open",cto allow off-load operation of the switch.

cto prevent the closing of the earthingswitch of the incoming unit unless thedisconnector and the switch is locked"open".

no key

free key

captive key

panel or door

legend for key-type interlocks


45/5144

SM6 rangeconnections

connections with dry-typecables

Dry-type cables connect via short simplifiedterminations (EUIC):c with a field deflector or a linear voltagedistributor for type HN 33-S-22 single-corecopper or aluminium cables;c with a linear voltage distributor for typeHN 33-S-23 single-core or three-core*cables.The termination lug must be connected tothe integrated stud on the field deflector,using a torque wrench set to 50 mN.

cabling from belowall unitscthrough trenchesThe trench depth P is given in the tableopposite for commonly used types of

cables.cwith standsTo reduce P or eliminate trenchesaltogether by placing the units on 400 mmfootings.cwith floor voidThe trench depth P is given in the tableopposite for commonly used types ofcables.

cabling from aboveOn each unit of the range, except thoseincluding an enlarged low-voltagecompartment, the connection is made withdry-type and single-core cables (1 or 2cables per phase up to 240 mm2 *).The enlarged low-voltage compartmentmay be equipped with neon indicators for

cable terminal.

cabling from below for the 400 - 630 - 1250 A unitssingle-core cables units until 630 A 1250 A units

cable bending IM(1), SM(1) IMC(1), CRM, PM, QM, SM, DM1-A (3)X-section radius NSM-cables, DM1-A, DM1-W, QMC (2) GAM DM1-W (3)

(mm2) (mm) NSM-busbars GAM

depth P (mm)

all orientations

P1 P2 P3 P4 P5

50 370 140 400 350

70 400 150 430 350

95 440 160 470 350

120 470 200 500

150 500 220 550

185 540 270 670

240 590 330 730

400 800 1000 1350

630 940 1000 1350(1) double-connection equipment possible up to 240 mm2.(2) must be installed with a 100 mm deep pan.(3) must be installed with a 350 mm deep pan, in a floor void.

Note: The unit and the cables requiring the greatest depth must be taken into account whendetermining the depth P for single-trench installations.In double-trench installations, depth P must be taken into account for each type of unit andcable orientations.

* only for the 400 - 630 A units.


46/5145

trench diagrams: examplesCable entry or exitthrough right or left side

Rear entry or exit with conduits Front entry or exit with conduits

Note: For connection with conduits, the bevel must correspond to the following trench dimensions, P1 = 75 mm or P2/P3 = 150 mm.

600220 P2 600220 200

P1

P3

20

IM

IM

100

20

70

DM1

required dimensions (mm)

600220 200 P1 P2

20

IM

IM

100

20

70

DM1

200

200

200

IM

100

20

70

IM

QMC


47/5146

SM6 rangeconnections (cont.)

cable-connection heightmeasured from floor (mm)

DM1-A SF1 430 or 650 (2)

DM1-A SFset 370

DM1-W 360 or 650(2)

GAM2 760

GAM 470 or 620 (2)

(1) 870 mm for the 1250 A SM unitwith 2 cables per phase.(2) for the 1250 A units.

IM, NSM-cables, 950

NSM-busbars, SM (1)

IMC 450PM, QM 400

QMC 340

CRM 430

400

H

200 200

420

H

200 200420

H

200 200420

H

200 200420

200 200420

H

IM, NSM cables, NSM busbars, SM IMC, PM, QM, QMC CRM

DM1-A, DM1-W 400 - 630 A

GAM2 GAM

200 200420

H

DM1-A, DM1-W 1250 A

H

200 200420


48/5147

SM6 rangeinstallation

floor preparationUnits may be installed on ordinary concrete

floors, with or without trenches dependingon the type and cross-section of cables.Required civil works are identical for all400 - 630 A units.To reduce the depth of trenches by 400 mm(for the 400- 630 A units), which in manycases is sufficient to eliminate trenchesaltogether, units may be installed on aconcrete footing prepared when pouring thefloor.Installation of 400 - 630 A units ona footing:c enables installation in rooms wheretrenches are not possible;c in no way affects substation switchingoperation.

For the 1250 A units DM1-A and DM1-W,a floor void must be foreseen.

fixing of unitsWith each otherThe units are simply bolted together to formthe MV switchboard (bolts supplied).Busbar connections are made using atorque wrench set to 28 mN.On the floorc for switchboards comprising up to threeunits, the four corners of the switchboardmust be secured to the floor using:v M8 bolts (not supplied) screwed into nutsset into the floor using a sealing pistol;v screw rods grouted into the floor;c for switchboards comprising more thanthree units, the number and position offixing points depends on local criteria(earthquake withstand capacities, etc.).

Each unit may be fixed as necessary.c position of fixing holes b depends on thewidth of units:

a

b 15

740840

15

50

5012,3 x 12,3

a (mm) 125 375 500 625 750b (mm) 95 345 470 595 720

Note: In circuit-breaker or contactor units,fixing devices are installed on the sideopposite the switchgear.

dimensions and weightstyp of unit height width depth weight

(mm) (mm) (mm) (kg)IM, IMB 1600 (1) 375 940 120

IMC 1600 (1) 500 940 200

PM, QM, QMB 1600 (1) 375 940 130

QMC 1600 (1) 625 940 230

CRM 2050 750 940 390

DM1-A, DM1-D, DM1-W, DM1-Z, DM2 1600 (1) 750 1220 400

CM 1600 (1) 375 940 190

CM2 1600 (1) 500 940 210

GBC-A, GBC-B 1600 750 1020 290

NSM-cables, NSM-busbars 2050 750 940 260

GIM 1600 125 840 30

GEM(2) 1600 125 920 or 1060 30 or 35

GBM 1600 375 870 120

GAM2 1600 375 870 120GAM 1600 500 1020 120

SM 1600 (1) 375/500 (3) 940 120

TM 1600 375 940 190

Add to heights:(1) 450 mm for low-voltage enclosures for control/monitoring and protection functions.To ensure uniform presentation, all units (except GIM and GEM) may be equipped withlow-voltage enclosures.(2) depending on the busbar configuration in the VM6 unit, two types of extension unitsmay be used:- to extend a VM6 DM12 or DM23 unit, use an extension unit with a depth of 1060 mm;- for all other VM6 units, a depth of 920 mm is required.(3) for the 1250 A unit.


49/5148

SM6 rangeinstallation (cont.)

dimensions

1600

840 30

70

450

1600

840 30

450

1600

84080 100

450

IMC, QMC, CM, CM2 CRMIM, IMB, PM, QM, QMB, SM

1600

84080 100 200

450

1600

840 30

70

450

1600

84080 100

DM1-A, DM1- D, DM1- W, DM1-Z, DM2 NSM-cables, NSM-busbars GBC-A, GBC-B

1600

840

1600

920140

1600

840 30

GIM GEM GBM, GAM2

GAM

1600

84080 30

70


50/5149

IM IMou CM

DM1-Dou DM2

GBC-A QM

20020

1200

20

840

100

100

SM6 rangeVM6 extension and layout examples

Bocage prefabricatedsubstation

conventional masonry substation

minimum required dimensions (mm)

VM6 switchboard extension example

Front view dimensions Bottom view dimensions

1600

375125500

1500VM6 SM6

920ou

1060840

VM6 SM6

front view switchboard


51/51

sm6 switchgear

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