mv distribution - gmset (mv gis) cb

Medium Voltage Distribution

GMset

MV Gas Insulated Switchgear up to 24kV

1

Schneider Electric

GMset

Contents

pages

General presentation

Protection and control of electrical networks 2Main characteristics of medium voltage equipment 4

Functional units

General features 6Choice 8Description 10

Protection monitoring and control

Switchboard monitoring and control 14Functional unit protection 16Current, voltage transformers and live line testing 17

Apparatus

SF1-G and SF-1P circuit breakers 18GMh and RI operating mechanisms 20GMh and RI auxiliary diagrams 21

Installation

Cable terminations 22Example of layout 23

Environment

Preserving the environment 24

2

Schneider Electric

GMset


Protection and controlof electrical networks

For over 30 years, Schneider has been providing Medium Voltage electrical networkprotection, monitoring and control solutions in the public distribution, industry andbuilding sectors.GMset is a range of medium voltage equipment included in an offer that covers allthe functions required for network operation.

Public distribution networks

Network telecontrol (SCADA & DMS)

Milenium

Main functions:

b

supervisory control and data acquisition,

b

network restoration,

b

wallboard replacement,

b

geographic and schematic views,

b

switching schedules,

b

safety, checks and documentation,

b

outage statistics,

b

management of maintenance operations,

b

management of construction programs.

HV/MV substation control

Talus

Main functions:

b

remote control,

b

HV and MV protection integration,

b

data and alarm logging,

b

centralized local control.

Industrial and building networks

Protection, monitoring and control

Isis - Powerlogic SMSSepam - Circuit Monitor - Power Meter.

Main functions:

b

installation display,

b

real time access to protection and control units,

b

alarm management,

b

data analysis,

b

electricity consumption management,

b

power availability and quality,

b

protection functions,

b

web technology.

3

Schneider Electric

GMset offer

Three levels of components are available to protect, monitor and control the mediumvoltage switchboard:

b

A control and monitoring system interfaceable with a higher level system.

b

Sepam: protection and control unit for each switchgear unit (or cubicle).

b

GMset units: medium voltage equipment comprising cubicles with breakingdevices, sensors, medium voltage connections and low voltage auxiliaries.

Pre-engineered and adaptable solutions

The three levels of components may be provided to make up:

b

global solutions from the control centre to the MV switchgear,

b

partial solutions which include 1, 2 or 3 levels of components to fit into projects fornew substations and retrofitting, extending and revamping existing installations.

Services

b

Equipment design, installation and maintenance.

b

Personnel training.

b

Electrical network availability studies.

b

Extended warranty.

4

Schneider Electric

GMset


Main characteristics of MV equipment

GMset is indoor, metalclad switchgear designed for the MV section of HV/MV and MV/MV substations.GMset complies with the International (IEC) and European standards.GMset’s design and functions take into account the three main categories of usersrequirements.bbbb

Investment Optimization and Profitability.bbbb

Service continuity.bbbb

Safety.

Investment Optimization and Profitability

These are achieved through GMset capability to meet all users requirements in themost cost-effective way possible.With GMset, the user benefits from:

b

the most compact equipment ever built in the medium voltage field, providing userswith a high degree of space savings when building or replacing a HV/MV or MV/MVsubstation,

b

pre-engineered solutions built upon the group’s worldwide experience andcollaboration with consultants and contractors, providing users with considerabletime savings when specifying needs,

b

the shortest delivery and installation time possible, providing users with fastcommissioning and quick return on investment,

b

a complete range of remote protection, control and monitoring functions whenrequested by users who want to set up a supervision system in order to optimize theirenergy supply.

Service continuity

Service continuity is achieved by means of GMset, which is a highly reliableequipment offering with all the required functions to provide users with maximumenergy availability and quality.With GMset, the user benefits from:

b

expertise developed by the group in the area of operating dependability thanks tofeedback on experience gained with an installed equipment base of 100.000 cubiclesand 200,000 medium voltage circuit breakers,

b

quality organization in accordance with the ISO 9000 and ISO 14001 standards,

b

the latest CAD/CAE techniques with 3D modeling of electric fields in SF6 andinsulating materials,

b

fully factory-tested equipment with type test reports available for eachperformance and type of cubicle,

b

a supervision offer open to all specifications regarding substation managementand enabling users to control and follow up their energy supply,

b

equipment that cannot be affected by humid, dusty, corrosive or polluted operatingenvironments since all live parts are contained in SF6 filled and sealed enclosures,

b

suitable for installation over 1000 mt (a.s.l.),

b

tested against seismic activities according to IEC 68.3.3 (please, consult us).

Safety

Maximum safety is achieved through GMset’s design and functions.With GMset, the user benefits from:

b

a very comprehensive set of mechanical and electrical interlocks preventingoperator errors and compliant with the user’s security protocol,

b

internal arc withstand of all the functional units, validated in accordance with IEC60298, appendix AA, criteria 1 to 6, class A accessibility,

b

a complete range of protection and control features with the Sepam range, suitablefor any function requested by the user,

b

equipment which is part of the GIS range with all live parts completely segregatedfrom operators since they are fully contained in sealed enclosures.

5

Schneider Electric

General characteristics

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

Normal operating conditions, according to IEC 60694 for indoor switchgear

(5)

bbbb

Ambient air temperature:

v

less than or equal to 40 °C,

v

less than or equal to 35 °C on average over a 24-hour period,

v

greater than or equal to -5 °C.

(

1)

bus-section unit 2000A(

2)

the short-circuit making current is equal to 2.5 times the short time current.

(3)

short time withstand current for any application with earthing switch (AD1-ES and TT1-ES) is up to 1 sec.(

4)

standard degree of protection, for other values, please consult us.(

5)

for different conditions, please consult us.

Standards

GMset range meets the following international standards:

b

IEC 60694

: common specifications to high voltage switchgear and controlgear

b

IEC 60298

: A.C. metal-enclosed switchgear and controlgear for rated voltagesabove 1kV and up to and including 52kV

b

IEC 62271-100 (60056)

: high voltage alternating current circuit breakers

b

IEC 62271-102 (60129)

: alternating current disconnectors and earthing switches

rated voltage (kV) 12 24rated insulation level

power-frequency withstand voltage (kV) rms 28 50lightening impulse withstand (kV) imp 75 125

rated normal current

busbar (A) 1250 12502500

(1)

2500

(1)

functional units (A) 630 6301250 12502000 2000

short time withstand current (kA/3 sec)

(2) (3)

16 1625 25

short circuit breaking current (kA)16 1625 25

internal arc withstand (kA/1 sec) 25 25SF6 gas pressure at 20° C (Mpa) relative 0,015 0,015standard degrees of protection (4)

SF6 filled compartment IP65 IP65enclosure IP3X IP3Xinternal partitions IP2XC IP2XC

6Schneider Electric

GMset Functional unitsGeneral features

GMset switchgear is made up of interconnected functional units.Each functional unit contains all the elements needed to perform its function:b a gas-insulated, metalclad cubicle, for indoor use,b a circuit breaker using SF6 as a breaking medium, sealed for life,b a digital protection and control system.

Power connections are made between functional units by a busbar set located insidea SF6 compartment. Steady electrical continuity of all metal frames is ensured byconnection of each functional unit’s earthing busbar to the switchgear’s mainearthing circuit.Low voltage wiring ducts are provided in the switchgear, above the low voltagecompartments.

CubicleThe cubicle is a set of earthed, metal-enclosed, gas insulated switchgear thatcomplies with the requirements of the IEC 60298 standard.

The cubicle comprises four independent compartments, in accordance with thedefinition of “metalclad” switchgear given in the standard.

The busbar compartment, using SF6 as an insulating medium, is situated in the topof the unit and it contains:b main busbars,b three-position disconnector.

The circuit breaker compartment, using SF6 as the medium, is located in thecentral part of the cubicle, linked to the top part part with the busbar compartment bymeans of a bushing insulator. It contains:b disconnectable circuit breaker,b connections

The MV connections compartment is situated in the bottom of the cubicle and itcontains:b MV cable bushing connectors,b current transformers,b voltage transformers.

The Low Voltage compartment, separated from the medium voltage section, islocated in the top of the unit and it contains the low voltage auxiliaries and themonitoring unit.

General arrangementFive basic cubicle layouts are offered:b incoming or outgoing feeder AD1/AD2b incoming or outgoing feeder with separated earthing switch AD1-ESb bus section CL1/CL2b the busbar metering with disconnector TT1b busbar metering and earthing TT1-ES

Disconnectable circuit breakerGMset units use the following circuit breakers:b SF1-P up to 1250A - 24kV - 25kA b SF1-G up to 2000A - 24kV - 25kA The circuit breakers are designed in accordance with IEC 62271-100 standard andthey comply with the definition of «pressure sealed systems» given in IEC 60298standard, appendix GG.They are “puffer” type and use SF6 gas as a breaking and isolating medium. Thecircuit breakers are maintenance free for life. In case of necessity they can bereplaced in short time because the main connections are made by sliding contacts.

Protection and control systemIt includes:b Sepam protection and monitoring unitb current transformersb voltage transformers

7 Schneider Electric

AD1/AD2 type functional unit (incomer and feeder)

1 - SF6 busbar compartment2 - three position disconnector3 - SF6 circuit breaker compartment4 - current transformers5 - cable compartment6 - voltage transformers7 - low voltage compartment8 - SF6 circuit breaker9 - MV plug-in connectors

auxiliary cableway

low voltage compartmentsepam

disconnector operating mechanismearthing switch operating mechanism

instruction plates

cable compartment

1

2

3

4

5

6

7

8

9

BC

HI

DE

F

G

J

K

A

L

M

N

BC

EF

IJ

K

D

G

H

A

L

M

N

A. disconnector on/off positionB. on/off actuating shaftC. disconnector operating deviceD. on/off earth actuating shaftE. earthing switch operating deviceF. earthing switch on/off position indicatorG. voltage indicatorH. CB closing push-buttonI. CB opening push-buttonJ. CB operations counterK. CB compartment SF6 pressure gaugeL. CB spring condition indicatorM. CB manual spring charging deviceN. CB position indicator

AD1/AD2 unit AD1-ES unit

8Schneider Electric

GMset Functional unitsChoice

The GMset range is composed of 9 functional units. The chart below may be used tolink up needs and functional units, and it gives information on the generalcomposition of each unit.How to select: if the user wishes to supply power to a transformer, the solution is a Transformer Feeder.The matching functional unit is therefore a TF, comprising an AD1 cubicle equippedwith a disconnector switch, circuit breaker and a type T Sepam.

function incomer feeder

line transformer line transformer capacitordevice disconnector

circuit breakerdisconnectorcircuit breaker

disconnectorcircuit breaker



functional unit LI TI LF TF CFcubicle AD1-AD2 AD1-AD2 AD1-AD2 AD1-AD2 AD1-AD2protection and control unit Sepam S Sepam T Sepam S Sepam T Sepam Cmain options earthing switch with making capacity (available up to 24kV- 12kA- 25kA x 1sec. on AD1-ES units)

current / voltage transformerssurge/lighting arresters surge/lighting arresters

key locks

Sepam Sepam Sepam

IncomerLI, TI with AD1/AD2

FeederLF, TF, CF with AD1/AD2

FeederLF, TF, CF with AD1-ES


function bus sectionalizing bus meteringswitchboard sectionalizing busbar earthing

device disconnectorcircuit breaker

disconnector disconnectorearthing switch

functional unit BS BB-S BB-EScubicle CL1-CL2 TT1 TT1-ESprotection and control unit Sepam B Sepam B Sepam Bmain options

current transformers voltage transformersurge/lighting arresters

key locks

Sepam Sepam

Busbar metering BB with TT1-ES

Busbar meteringBB-S with TT1

Switchboard bus sectionBS with CL1/CL2

10Schneider Electric

GMset Functional unitsDescription

Functional unit/cubicle corresponding chartThe chart below summarizes the electrical characteristics of each of the GMset functional units.The type of cubicle used for the function varies according to the characteristics. The name of the cubicle (AD1, CL2,...) is the name which appears on the GMset test certificates.How to read the chart:to create a “line incomer” function, an LI functional unit is chosen.The incomer characteristics are:b Un = 24kV,b Isc = 25kA,b In = 2000A.

The cubicle used for this function is an AD2.

A* busbar current(1) Direct incomer (unit without circuit breaker, equipped with fixed bus-bar bridge) is available with RD1 name

function 12 / 24 kVincomer / feeder (1)

AD and RD

bus sectionCL

busbar voltage metering with sectionalizing VTTT1

busbar voltage metering with earthing switchTT1-ES

kA

25

1250 2000 A

AD1RD1 (1)

AD1-ESAD2

630

16

16

kA

25

1250 2000 A

CL1 CL2

kA

25

1250 2000 A*

TT116

kA

25

1250 2000 A*

TT1-ES16


Dimensions (mm) and approximate weights (kg) by type of cubicle

(*) Back to wall:1100mm; free standing 1150mm(1) Direct incomer (unit without circuit breaker, equipped with fixed bus-bar bridge) is available with RD1 name

AD1AD1-ES

AD2 RD1

width (mm) 500 1000 500height (mm) 2390depth* (mm) 1110weight (kg) 500 1000 420

Front views Side views

AD2

RD1(1)

AD1-ESAD1AD1 AD1-ES



(*) Back to wall:1100mm; free standing 1150mm

CL1 CL2

width (mm) 1000 1500height (mm) 2390depth* (mm) 1100weight (kg) 700 1400

CL1

CL2




(*) Back to wall:1100mm; free standing 1150mm

TT1 TT1-ES

width (mm) 500 500height (mm) 2390depth* (mm) 1100weight (kg) 350 400

TT1

TT1-ES



MERLIN GERIN

A V/Hz W/ϕ clear reset

I on trip

alarmWh

O off

MERLIN GERIN


I on trip

alarmWh

O off

MERLIN GERIN


I on trip

alarmWh

O off

MERLIN GERIN


I on trip

alarmWh

O off

MERLIN GERIN


I on trip

alarmWh

O off

MERLIN GERIN


I on trip

alarmWh

O off

GMset Protection monitoring and control Switchboard monitoring and control

GMset supervision system GMset can be provided with a user’s customized supervision system designed tocontrol and monitor GMset switchboards.The use of a supervision system is a key factor in the improvement of the quality ofservice:b efficiency in daily use and operations thanks to a user friendly user interface, b continuity of service by fast intervention provided by remote control of the GMset, b understanding and analysis of events and loads.

User-friendly and dependable operator interfaceThe operator interface of a GMset supervision system is designed to be used by electricians. The ergonomics is intuitive, making the system easy to understand and use.

ArchitectureThe user terminal consists of a compatible personal computer.It is directly connected to the Sepam protection units via a standard communicationbus. The control station can easily be connected to a higher level monitoring and controlsystem.

Basic functionsThe main functions are:b installation display by chained mimic diagrams (animated single line diagram,device position, energized parts, current faults…),b real time access to Sepam protection unit measurements (display ofmeasurements, remote control, protection curve and settings…),b alarm management (tracking, diagnosis...),b data analysis (measurements, monitoring curves, data logging...)b power consumption analysis.


Protection and control solutionEach GMset functional unit is equipped with a protection and control solution suitablefor the function to be performed.The solution comprises :b a Sepam Protection and Control unit(1) suited to the needs,b toroidal current transformers,b voltage transformers,b low voltage auxiliaries: test blocks, auxiliary contacts, terminal blocks ...b low voltage outlets for connection to the switching device.

(1) or any other combination of relays, automation devices, measurements and meteringapparatus.

GMset switchboard: protection monitoring and control unit Sepam is a range of digital monitoring protection and control units.Sepam is at the centre of protection, monitoring and control system for GMsetfunctional units: all the necessary protection, metering, control, monitoring andsignalling functions are carried out by Sepam.Sepam has a range of units defined to provide an optimal solution for a eachapplication, and includes:b Sepam S, sub-station incomer and feederb Sepam B, bus sectioningb Sepam T, transformer feederb Sepam M, motor feederb Sepam C, capacitor feederb Sepam G, generator feeder

The Sepam range hinges around 2 functional and hardware bases:b Sepam 2000, focused on performance, covers all GMset functional applicationsb Sepam 1000+, simple and modular, offers an optimezed solution for most commonapplications.

Sepam advantagesSepam, a digital multi-functional protection unit, provides you with the followingadvantages:b simple to use for better dayly efficiency: use-machine interface (UMI) which isergonomic and which provides comprehensive and clear information to operatorsb simple to incorporate: flexibility and user friendliness of parameter settingsoftware, simplified testsb money saving:v integrating all functions required in one single, ready to use productv upgradable solution, to spread the cost of investment over timeb centralized GMset switchboard management:v Sepam is easily integrated into all network control systems, due to its Modbuscommunication interfacev all data required for installation monitoring and control are accessible through theModbus communicationb better network knowledge through the oscillo-disturbance recording function andmeasurement of the imbalance ratio, motor operation parameters, etc.:b improving continuity of servicev through effective preventive equipment maintenance using switchgear diagnosisfunctions: time and number of operations, sum of breaking currents A2, etc.v through clear and comprehensive information, both locally and remotely, reducingthe time needed to act in the event of a fault.

sepam

voltagetransformer

currenttransformer


GMset Protection monitoring and controlFunctional unit protection

Sepam 2000, for all applicationsThe Sepam 2000 range of digital protection, monitoring and control units provides acomprehensive 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 beprotected. 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 responseto the actual requirements of a functional application, including all the requiredfunctions ready to use. Focused on performance, Sepam 2000 includes the following functions:bmetering functions: measurement of current and voltage, measurement of powerand active and reactive energy, etc.b protection functions: directional phase and earthing protection, differentialtransformer or machine protection, etc.b monitoring and control functions: in its function as a programmable logicalcontroller, Sepam 2000 is pre-programmed to carry out standard monitoring andcontrol functions, and can be re programmed to handle any specific automatic controlfunction!

Sepam 1000+ series 20Suitable for common applications, Sepam series 20 offers simple solutionsbased on current or voltage metering.b protection of substation incomers and feeders against phase-to-phase andphase-to-earth short circuits with 16 IDTM tripping curves and adjustable timer holdto detect recurrent faultsb protection of overhead lines with built-in recloser functionb protection of transformers against overloads, with ambient temperature-compensated RMS thermal overload protection with 2 groups of settings for differentventilation operating ratesb protection of motors against internal faults and overloads with ambienttemperature-compensated RMS thermal overload protection.

The Sepam series 20 B21 and B22 voltage units are suitable for monitoring ofnetwork voltage - frequency and loss of mains detection by rate of change offrequency protection for installations with local power generation.

Sepam 1000+ series 40Sepam series 40, with its current and voltage metering capabilities, offers high-performing solutions for more demanding applications.Sepam series 40 units perform the following functions in addiction to thoseperformed by Sepam series 20b protection of closed ring networks or networks with parallel incomers, by directional protectionb directional earth fault protection suitable for all earthing systems: impedant, isolated or compensated neutralb protection of networks with variable configurations requiring the switching of groups of settings and logic discriminationb all the necessary electrical measurements: phase and residual currents, phase-to-neutral, phase-to-phase and residual voltage, frequency, power and energy, ...b comprehensive network diagnosis assistance: 20 seconds of disturbance record-ing, detailed history of the last 200 alarms, storage of the last 5 tripping contextsb adaptation of control functions by a logical equation editorb customization of alarm messages to fit each application, and/or in the user’s language

Sepam 1000+ selection guide

Example: For motor protection and current-voltage measurements, your solution is M41 typeFor detailed information, see catalogues (Sepam Encyclopædia on CD ROM).

selection criteria Series 20 Series 40Measurements I U U I and U I and U I and USpecific protection functions available

Loss of mains (ROCOF)

Directional earth fault

Directional earth fault and phase overcurrent

Applications TypeSubstation S20 S40 S41 S42Transformer T20 T40 T42Motor M20 M41Generator G40Busbar B21 B22


GMset Protection monitoring and controlCurrent and voltage transformers and live line testing

In the protection system, the functional units are fitted with transformers designed tosupply the measurements and/or protection circuits:b current transformers,b voltage transformers,v CSH core balance current transformers.

The live parts are totally encapsulated in an integral epoxy resin molding which serves a dual function:b it ensures electrical insulation,b it guarantees excellent mechanical resistance of the assembly.

Current transformersAD1 and AD2 unitsARF / ARL type toroidal-core current transformers are located around the switchgearbushings. The toroidal core accommodates the secondary windings, the switchgearbushing is the primary winding.The transformers have primary current values from 50A to 1250A and secondarycurrent 1A or 5A.

CL1 and CL2 unitsARJA1 type conventional current transformers, located in the bus-section unit.The transformers have primary current values from 500A to 2500A and secondarycurrent 1A or 5A.Schneider has a standardized list of CTs that are appropriate for use with digitalprotections to simplify the determination of accuracy characteristics. This list is available on request.

Voltage transformerVRT4 type metal shielded voltage transformers, located in the cable compartment.They have one insulated MV end with plug-in connector, for connection betweenearth and phase conductors in 3-phase systems.The cores and windings are overcast in epoxy resin, providing electrical insulation.The external surface is metal shielded.

CSH core balance current transformersThe CSH core balance current transformers, designed by Schneider, provide moresensitive protection by direct measurement of earth fault current.They will be housed in the cable trench at the bottom of the unit.They can be connected to either of Sepam current inputs: 2A or 30A.

VPIS (Voltage Presence Indicator System) StandardThis indicator is in conformity with the standards specifically dealing with VPIS: IEC61958.

RationalisationSince it is designed for all MV products ranges this new VPIS will be used for otherproducts such as SM6, RM6, etc.Its new design integrates better with the earthing switch unit as a whole.The indicator lights are incorporated in the unit in this new version.

ARF type ARJA1 type

VRT4 type

CSH type


GMset ApparatusSF1-G and SF1-P circuit breakers

SF1-G and SF1-P circuit breakersb The SF1-G and SF1-P circuit breakers are “puffer“ type and use SF6 gas as abreaking and insulating medium.They are composed of three poles mounted on a base which supports the operating mechanism. According to IEC 60298 App. GG (1987), the circuit breaker is defined as a sealedpressure system, that is an assembly for which no further gas processing is requiredduring its expected operating life.b The fundamental feature of the circuit breaker- essential for the very concept of afully gas insulated switchgear- is its very high dependability which means:v high reliability,v long mechanical life: the circuit breakers are tested for 10,000 (class M2)mechanical operations with no need to replace parts with only ordinary maintenanceof the operating mechanism,v long electrical life: the capacity of breaking load and short circuit current is muchhigher than it is normally required in 30 years of operational life. The circuit breakerscomply for the electrical endurance life whit IEC 62271-100 (class E2) standard.v no need for any maintenance on the active parts,v manufactured under a fully quality assurance program.

Puffer type: operating principleThe main contacts and arcing contacts are initially closed (fig 1).

Precompression (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 strikes between the arcing contacts. The piston continues its downwardmovement.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 towardthe colder 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 SF6.

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

fig.1 fig.2

fig.3 fig.4


Characteristics of circuit breakers in GMset GIS

Main switching featuresb low overvoltages when breaking small inductive currentsb suitable for rapid autoreclosing dutyb suitable for switching capacitor banks

StandardsThe indicated features are referred to the following standards and specifications:IEC 62271-100, 60056 and 60694 International Standards

Operating time definitionb opening time: interval of time between the instant of energizing the openingrelease and the instant when the arcing contacts have separated in all polesb break time: interval of time between the instant of energizing the opening releaseand the instant when the arc extinguishes in all polesb closing time: interval of time between energizing the closing circuit and the instantwhen the contacts touch in all poles

Operating sequenceConsult our technical department for other operating sequences.

electrical characteristics SF1-G SF1-Prated voltage kV, 50/60Hz 12 24 12 24

insulation level kV, rms 50Hz - 1 mn 28 50 28 50kV, 1,2/50 µs impulse 75 125 75 125

rated normal current A 630 b b1250 b b2000 b b

short circuit breaking current

kA, rms 25 25 25 25

short circuit current kA, peak 63 63 63 63

short-time withstand current

kA, rms 3s 25 25 25 25

capacitor breaking current

A 875 875 440 440

rated operating sequence

O-0,3s-CO-15s-CO b bO-0,3s-CO-30s-CO b b b bO-0,3s-CO-3m-CO b b b b

approximate operating time

ms opening 35-50 35-50 35-50 35-50breaking 35-65 35-65 35-65 35-65closing 50-70 50-70 50-70 50-70


GMset ApparatusGMh and RI operating mechanisms

Operating mechanismsGMh and RI operating mechanismsSF1-G and SF1-P range circuit breakers are actuated respectively by GMh and RIoperating mechanisms that ensure switching device closing and opening speed thatis indipendent of the operator. The operating mechanisms, which are alwaysmotorized, can perform remote control funtions and implement fast reclosing cycles.The operating mechanisms are located outside the SF6 compartment. Maintenanceis reduced by using self lubrificating parts.

GMh and RI electrical operating mechanisms include: b a spring system which stores the energy needed to close and open the breaker,b a manual spring charging system, b an electrical motor spring charging device that automatically recharges themechanism as soon as the contacts close (time ≤ 15 s),b two mechanical push-buttons on the front panel for opening and closing,b an electrical closing system including:v a closing release for remote control and an anti-pumping relay.b an electrical “opening” release system featuring one or more releases of thefollowing types:v shunt,v undervoltage*v low power-consuming mitop**,b operation counter,b a mechanical “charged-discharged” position indicator of closing springs,b a closing springs end-of-charging contact (NO or NC),b a mechanical “open-closed” position indicator,b a multi-pin connector for isolating auxiliary circuits.

Auxiliary contactsThe GMh and RI operating mechanisms are equipped with auxiliary contacts. Thenumber of available contacts depends on the composition of the operatingmechanism and the options chosen. However at least three CO contacts areavailable on the switchgear outgoing terminal block for the external signals.

* on request as special solution, please contact us.** mitop: current-operated release used as an option with the Sepam 100 LA protection relay.*** hold consumpion

rated current 10A

breaking capacity AC 10A with 220V(p.f. ≥ 0,3)

DC 1,5A with 11 or 220V(L/R ≤ 0,01s)

GMh and RI operating mechanisms characteristicstype of auxiliaries spring

charging motor

closing release

shunt opening release undervoltage opening release

“Mitop” opening release **

single doublesupply voltage AC (V) 50Hz 48-110-220

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

consumption AC (VA) 500 (GMh)400 (RI)

100 (GMh)100 (RI)

100 (GMh)100 (RI)

200 (GMh)200 (RI)

75***

DC (W) 300 (GMh)250 (RI)

70 (GMh)70 (RI)

70 (GMh)70 (RI)

140 (GMh)140 (RI)

15***

possible combinations = + + + +

of auxilaries and quantity b 1 b 1 b 1 b 1or b 1 b 1 b 1 b 1or b 1 b 1 b 1 b 1


SoS

Su

Sf

KN

Y01

YMYF

Q

SN

M

SMMMM

SL

SE

SN SNSM

SP1S

SP2SYD

Y02

KN

GMset ApparatusGMh and RI auxiliary diagrams

Auxiliary diagram

GMh and RI circuit breaker operating mechanismsKN Anti-pumping relay.M Closing spring charging motor.Q Circuit breaker.SE Held tripping contactSF Closing push button (outside).SL Manual charging operation in progress.SM Circuit breaker auxiliary contacts.SN Closing springs end-of-charging contacts.SO Opening push button for shunt trip release (outside).SP1 Pressure-switch contact first level.SP2 Pressure-switch contact second level.SU Opening push button for undervoltage release (outside).YD “Mitop” opening release (current-operated).YF Closing release.YM Undervoltage opening release (*).Y01-Y02 Shunt opening releases.

(*) On request as special solution please contact us


GMset InstallationCable terminations

The switchgear is designed for the use of plug-in terminations according toDIN 47636, CENELEC EN 50181 Interface “C”.It is possible to connect up to two cables (1/3-core cable) for each phase with a max.cable cross section of 630mm2.In order to simplify the assembly and cable-testing work, the height of the connectionpoint is more than 700mm.

Type of cable termination (only for reference, not binding)

Typical configuration of cable connection for unit up to 1250A

Nota : 2000A units suitable for connection up to 4 cables per phase (two bushings in parallel per phase).

rated voltage type of M.V. cable manufacturer termination type

cable section

12kV one or three cores PE or XLPEinsulation type

Euromold 400TB 70-300 440TB 185-630

Felten&Guilleaume ASTS10/630 25-300 Raychem RICS51 25-300 Pirelli FMCTS-400 25-300

24kV one or three cores PE or XLPEinsulation type

Euromold K400TB 35-300 K440TB 185-630

Felten&Guilleaume ASTS10/630 25-300 Raychem RICS51 25-300 Pirelli FMCTS-400 25-300

1 cable per phase 2 cables per phase 1 cable per phase

2 cables per phase cable test device

+ VT connection

+ lightning arresters(or voltage transformers)


GMset InstallationExample of lay-out

Line-up switchgear(two incoming cubicles and one bushing section 24kV 1250A)

Civil engineering with utilities space

(1) minimum(2) in accordance with cable bending radius(3) distance needed to extract a funcional unit from the switchboard without moving the

other units(4) distance needed to extract the circuit breaker with special truck

LV cable entrance from the bottom inside CL cubicle or at the end side of switchboard.

500500(1) 500 1000500 500 500 500 500

1 0100

2 feeders630 A or 1250 A

incomer1250 Awith VT

500

transformerbusbar

bus section 1250 A transformerbusbar

incomer1250 Awith VT

2 feeders630 A or 1250 A

500(1)

100(1)(1

5000

100 (1)

1500 (4) - 2000 (3)

600

see

(2)

2600

(1)

2800

(1)

room entrance


GMset EnvironmentPreserving the environment

The Schneider recycling procedure for SF6 based products is subject to rigorous management, and allows each device to be traced through to its final destruction.

The Schneider recycling procedure

Within the framework of the group’s environmental policy, Schneider services has made an operational procedure available, enabling medium voltage switchgearto be processed while eliminating any release of SF6 into the atmosphere.To help you to protect the environment, and to take care of your storage ordismantling concerns, Schneider services offers to recover any of your equipmentthat is reaching the end of its service life.The GMset has been designed with environmental protection in mind:b the insulating and conducting materials that are used are identified, easy toseparate, and recyclable,b SF6 can be recovered at the end of its life, and reused after treatment.

This document has beenprinted on ecological paper.

ART.88492 09 / 2003

Schneider Electric SA

Postal addressF-38050 Grenoble cedex 9Tel: +33 (0)4 76 57 60 60Telex: merge 320842 Fhttp://www.schneiderelectric.com

Rcs Nanterre B 954 503 439

As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication.

Publishing: Schneider Electric SA.Production, Illustration: Schneider Electric SA

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