UNIS 5 GB

13ABB

Switch Disconnector Cubicle,type SDC

Uniswitch

Cubicle Types4.1Basic equipmentTop unit, including– 3-position switch disconnector– operating mechanism with

mechanical position indication– enclosure of busbar compartment– integrated low voltage

compartment– interlocking unit– busbars– earthing bar

Bottom unit, including– enclosure of cable compartment– cable entry with cable support

Cubicle Accessories– integrated voltage indicators

or socketinterface for portable indicators

– auxiliary contacts for close(2NO+2NC) and earth (2NO+2NC)position

– gas density indication with alarmcontact

– motor operation device– current transformers– arc-gas channel– channel for control cables– surge arresters– anti condensation heater– through-going earthing bar– apparatus earthing bar– short-circuit indicator

Technical Data SDCRated voltage [kV] 12 17,5 24Rated current [A] 630/800 630/800 630Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 375/500 375/500 375/500- depth [mm] 1000 1000 1000- height [mm] 1635/1885 1635/1885 1635/1885

Switch disconnector cubicle type SDC,is mainly used as an incoming, ring orbranch cubicle. The basic unit is equippedwith an SF6-insulated, 3-position switchdisconnector type SFG with its operationmechanism. The 3-position switch dis-connector may be in one of three posi-tions, “closed”, “open” or “earthed”, there-fore preventing incorrect operation.Access to the cable compartment ispossible in earthed position. “Open” and“earthed” positions are “visible” throughthe inspection windows placed behindthe low voltage compartment door.Inspection of cable connections and faultindicators, when used, is easily carriedout through the front-door window.

For safe cable testing a unique interlock-ing mechanism is included as standardfeature.

UNIS 5 GB

14 ABB

Switch Disconnector cubicle with Fuse,type SDF

Technical Data SDFRated voltage [kV] 12 17,5 24Rated current (max. fuse) [A] 125 100 80Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Fuse length [mm] 292/442 292/442 442Cubicle dimensions

- width [mm] 375/500 375/500 375/500- depth [mm] 1000 1000 1000- height [mm] 1635/1885 1635/1885 1635/1885

Cable shoe, max. width [mm] 30 30 30

Uniswitch

Cubicle Types4.2Fused switch disconnector cubicle typeSDF, is primarily used for transformerprotection voltage metering. The cubicleis equipped with a SF6-insulated, 3-posi-tion switch disconnector and with earth-ing switch. For fuse earthing, the inte-grated earthing switch operates on theupstream side and separate earthingswitch operates on the downstream sideof the fuses.The mechanism used is adouble spring mechanism with automaticfuse-tripping. Access to cable compart-ment is possible in earthed-position.“Open” and “earthed” positions are“visible” through inspection windowsplaced behind the low voltage compart-ment door. Inspection of cable connec-tions and fault indicators when used, iseasily carried out through the front-doorwindow.

Basic equipmentTop unit, including– 3-position switch disconnector– operating mechanism with

mechanical position indication– enclosure of busbar compartment– integrated low voltage

compartment– interlocking unit– fuse tripping with indication– busbars– earthing bar

Bottom unit, including– earthing switch type EF– fuse base– enclosure of cable compartment– cable entry with cable support

Cubicle Accessories– integrated voltage indicators

or socket interface for portableindicators

– auxiliary contacts for close(2NO+2NC) and earth (2NO+2NC)position

– auxiliary contacts for fusetripped, 1NO+1NC

– gas density indication with alarmcontact

– emergency tripping– tripping coil– motor operation device– voltage transformers– arc-gas channel– channel for control cables– anti condensation heater– through-going earthing bar– apparatus earthing bar

UNIS 5 GB

15ABB

Circuit Breaker Cubicle,type CBC

Technical Data CBCRated voltage [kV] 12 17,5 24Rated current [A] 630/800 630/800 630Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 750 750 750- depth [mm] 940+215 940+215 940+215- height [mm] 1635/1885 1635/1885 1635/1885

Uniswitch

Cubicle Types4.3Basic equipmentTop unit on right hand side, including– 3-position switch disconnector– operating mechanism with

mechanical position indication– enclosure of busbar compartment– interlocking unit– busbars– earthing bar

Top unit on left hand side, including– integrated low voltage

compartment for secondarycomponents

– enclosure of busbar compartment

Bottom unit, including– earthing switch type EM– enclosure of cable compartment– cable entry with cable support

Cubicle Accessories– circuit breaker, vacuum- or

SF6-type– integrated voltage indicators

or socket interface for portableindicators

– current transformers– voltage transformers– cable core transformer– auxiliary contacts for close

(2NO+2NC) and earth (2NO+2NC)position

– gas density indication with alarmcontact for switch disconnector

– motor operation device– arc-gas channel– channel for control cables– anti condensation heater– through-going earthing bar– apparatus earthing bar

The circuit breaker cubicle, type CBCis designed for control and protectionof distribution lines, networks, motors,transformers, capacitor banks, etc. Thecubicle can be equipped with a vacuumor a SF6-gas circuit breaker. The breakeris rail mounted and fixed to the busbars.To achieve the disconnecting functiona 3-position switch disconnector with anearthing switch is mounted betweenthe breaker and busbars.

The door is mechanically interlockedwith the switch disconnector's earthingposition to provide personal safety. Thecubicle is designed to be equipped withCTs and VTs (Standard DIN size, seeitem 5.10).

UNIS 5 GB

16 ABB

Withdrawable Circuit Breaker cubicle,type CBW

Technical Data CBWRated voltage [kV] 12 17,5 24Rated current, busbars [A] 1250 1250 1250Rated current, circuit breaker [A] 630 / 1250 630 / 1250 630 / 1250Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 800 800 800- depth [mm] 1335 1335 1335- height [mm] 1885 1885 1885

Uniswitch

Cubicle Types4.4Basic equipmentBasic cubicle, including– metal enclosed Alu-zinc steel

cubicle enclosure with integratedrear-mounted arc gas channel

– busbars– non-metallic partitioning and shutter– low voltage compartment for

secondary components– withdrawable circuit breaker,

vacuum- or SF6-type, includinginterlocked LV cable plug

– earthing switch, including inter-locked operation device

– cable entry with cable support

Cubicle Accessories– integrated voltage indicators or

socket interface for portableindicators

– current transformers– voltage transformers or surge

arresters– cable core transformer– additional auxiliary contacts– channel for control cables– anti condensation heater– through-going earthing bar– apparatus earthing bar– electrical position indication– electrical interlocking of earthing

switch– electrical interlocking of truck

The CBW panel is a circuit breaker panelwith a withdrawable circuit breaker. Thecircuit breaker cubicle is designed forcontrol and protection of distributionlines, networks, motors, transformers,capacitor banks, etc. The cubicle is avail-able with either vacuum or SF6-gascircuit breaker. The CB truck handlesthe disconnecting function of the circuitbreaker. A separate earthing switchenables earthing of the cables.

The door is mechanically interlocked withthe circuit breaker and the earthingswitch to provide personnel safety.

A wide range of secondary control &protection equipment is available for thecubicle, from the simplest self-poweredprotection relays to complicated protec-tion, monitoring and controlling devices.

UNIS 5 GB

17ABB

Direct Busbar connection Cubicle,type DBC

Uniswitch

Cubicle Types4.5Basic equipmentTop unit, including– bushings– enclosure of busbar compartment– interlocking unit, but only when

using earthing switch (EM)– integrated low voltage

compartment– busbars– earthing bar

Bottom unit, including– enclosure of cable compartment– parallel cable connection

possibility– cable entry with cable support or

VT mounting bracket

Cubicle Accessories– integrated voltage indicators

or socket interface for portableindicators

– current transformers– earthing switch for CT’s (EM)– arc-gas channel– channel for control cables– surge arresters– anti condensation heater– through-going earthing bar

Technical Data DBCRated voltage [kV] 12 17,5 24Rated current [A] 630/1250 630/1250 630/1250Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 375/500 375/500 375/500- depth [mm] 1000 1000 1000- height [mm] 1635/1885 1635/1885 1635/1885

To connect cables to the busbars, abusbar connection cubicle is available.This cubicle is equipped with connectionlugs for fixing the cables. CT's can beinstalled in the 500 mm cubicle.

The lower front door is fixed and can onlybe opened with a tool when earthingswitch is not included. The door has awindow for inspection.

UNIS 5 GB

18 ABB

Bus Riser Cubicle,type BRC

Technical Data BRCRated voltage [kV] 12 17,5 24Rated current [A] 630/1250 630/1250 630/1250Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 375/500 375/500 375/500- depth [mm] 1000 1000 1000- height [mm] 1635/1885 1635/1885 1635/1885

Uniswitch

Cubicle Types4.6Basic equipmentTop unit, including– bushings– enclosure of busbar compartment– integrated low voltage

compartment– busbars– earthing bar

Bottom unit, including– enclosure with bus riser bars– bottom cover

Cubicle Accessories– integrated voltage indicators

or socket interface for portableindicators

– current transformers– voltage transformers– earthing switch with position

indication– auxiliary contacts for earthing

switch, 2NO+2NC– arc-gas channel– channel for control cables– anti condensation heater– through-going earthing bar

Bus riser cubicle, type BRC, connects thebusbar to the bottom of a sectionalisingcubicle with circuit breaker or switchdisconnector. This 500 mm width cubiclecan be used as a metering cubicle withspace for 3 CTs and 3 VTs.

The lower front door is fixed to the cubicleand has to be released with a tool. Thedoor has a window for inspection.

UNIS 5 GB

19ABB

Technical Data SECRated voltage [kV] 12 17,5 24Rated current [A] 630/800 630/800 630Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 375/500/750 375/500/750 375/500/750- depth [mm] 1000 1000 1000- height [mm] 1635/1885 1635/1885 1635/1885

Sectionalising Cubicle,type SEC

4.7Basic equipmentTop unit, including– 3-position switch disconnector– operating mechanism with

mechanical position indication– enclosure of busbar compartment– integrated low voltage

compartment– interlocking unit– busbars– earthing bar

Bottom unit, including– enclosure with sectionalising

busbars– bottom cover

Cubicle Accessories– integrated voltage indicators

or socket interface for portableindicators

– auxiliary contacts for close(2NO+2NC) and earth (2NO+2NC)position

– gas density indication with alarmcontact

– motor operation device– current transformers– arc-gas channel– channel for control cables– anti condensation heater– through-going earthing bar– apparatus earthing bar– voltage transformers

The sectionalising cubicle is alwaysused together with the bus riser cubicle.The standard version with 375 mmwidth is equipped with a SF6-insulated,3-position switch disconnector forsectionalising the busbars. Earthingfacility is provided always as a standard.

Uniswitch

Cubicle Types

UNIS 5 GB

20 ABB

4.8 Uniswitch

Cubicle Types

Technical Data SEFRated voltage [kV] 12 17,5 24Rated current (max. fuse) [A] 125 100 80Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Fuse length [mm] 292/442 292/442 442Cubicle dimensions

- width [mm] 375/500 375/500 375/500- depth [mm] 1000 1000 1000- height [mm] 1635/1885 1635/1885 1635/1885

Basic equipmentTop unit, including– 3-position switch disconnector– operating mechanism with

mechanical position indication– enclosure of busbar compartment– integrated low voltage compartment– interlocking unit– fuse tripping with indication– busbars– earthing bar

Bottom unit, including– earthing switch type EF– fuse base

Cubicle Accessories– integrated voltage indicators

or socket interface for portableindicators

– auxiliary contacts for close(2NO+2NC) and earth (2NO+2NC)position

– auxiliary contacts for fuse tripped,1NO+1NC

– gas density indication with alarmcontact

– emergency tripping– tripping coil– motor operation device– arc-gas channel– channel for control cables– anti condensation heater– through-going earthing bar– apparatus earthing bar

The cubicle type SEF is used when asectionalising cubicle with fuse protec-tion is needed, or if there is a require-ment for measuring on the transformerfeeder. For fuse earthing, the integratedearthing switch operates on the upstreamside and separate earthing switch oper-ates on the downstream side of thefuses.

The mechanism used is a double springmechanism with automatic fuse tripping.Access to cable compartment is onlypossible in earthed-position. A visiblecheck of the “open” and “earthed” posi-tions is available through inspection win-dows placed in the low voltage compart-ment. Busbar connections to both leftand right are possible.

Sectionalising cubicle with Fuse,type SEF

UNIS 5 GB

21ABB

Uniswitch

Cubicle Types4.9Sectionalising Breaker Cubicle,type SBC

Technical Data SBCRated voltage [kV] 12 17,5 24Rated current [A] 630/800 630/800 630Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 750 750 750- depth [mm] 1155 1155 1155- height [mm] 1635/1885 1635/1885 1635/1885

Sectionalising breaker cubicle is usedtogether with the bus riser cubicle. Thestandard cubicles are equipped witha SF6 insulated 3-position switch dis-connector in series with a circuit breakerfor sectionalising the busbar. The cubi-cle is equipped with a vacuum or a SF6-gas circuit breaker. The breaker is railmounted and fixed to the busbars. Earth-ing facility on the switch disconnector isalways included.

The door is mechanically interlocked withthe switch disconnector's earthing posi-tion to give personal safety. The cubicleis designed to be equipped with CTs andVTs (Standard DIN size, see item 5.9).

Basic equipmentTop unit on right hand side, including– 3-position switch disconnector– operation mechanism with

mechanical position indication– enclosure of busbar compartment– interlocking unit– busbars– earthing bar

Top unit on left hand side, including– integrated low voltage compartment

for secondary components– enclosure of busbar compartment

Cubicle Accessories– circuit breaker, vacuum- or SF6-type– integrated voltage indicators or socket

interface for portable indicators– current transformers– voltage transformers– auxiliary contacts for close

(2NO+2NC) and earth (2NO+2NC)position

– gas density indication with alarmcontact for switch disconnector

– motor operation device– arc-gas channel– channel for control cables– earthing switch type EM– anti condensation heater– through-going earthing bar– apparatus earthing bar

UNIS 5 GB

22 ABB

Uniswitch

Cubicle Types4.10Sectionalising WithdrawableBreaker cubicle, type SBW

Technical Data SBWRated voltage [kV] 12 17,5 24Rated current, busbars [A] 1250 1250 1250Rated current, circuit breaker [A] 630 / 1250 630 / 1250 630 / 1250Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions- width [mm] 800 800 800- depth [mm] 1335 1335 1335- height [mm] 1885 1) 1885 1) 1885 1)

The SBW panel is a sectionalising cir-cuit breaker panel with a withdrawablecircuit breaker. The SBW is used togetherwith the bus riser cubicle (BRC). Thecubicle is designed for sectionalising thebusbar in the switchgear. It is availablewith either vacuum or SF6-gas circuitbreaker. The CB truck handles the dis-connecting function of the circuit breaker.A separate earthing switch enables earth-ing of the busbar.

The door is mechanically interlockedwith the circuit breaker and the earthingswitch to provide personnel safety.

A wide range of secondary control &protection equipment is available for thecubicle, from the simplest self-poweredprotection relays to complicated protec-tion, monitoring and controlling devices.

Basic equipmentBasic cubicle, including– metal enclosed Alu-zinc steel cubicle

enclosure with integratedrear-mounted arc gas channel

– busbars– non-metallic partitioning and shutter– low voltage compartment for

secondary components– withdrawable circuit breaker,

vacuum- or SF6-type, includinginterlocked LV cable plug

– earthing switch, including interlockedoperation device

Cubicle Accessories– integrated voltage indicators or socket

interface for portable indicators– current transformers– additional auxiliary contacts– channel for control cables– anti condensation heater– through-going earthing bar– apparatus earthing bar

1) 1905 with cable channel

UNIS 5 GB

23ABB

Uniswitch

Cubicle Types4.11Sectionalising Metering cubicle withDisconnector, type SMD

Technical Data SMDRated voltage [kV] 12 17,5 24Rated current [A] 630/800 630/800 630Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 750 750 750- depth [mm] 940+60 940+60 940+60- height [mm] 1635/1885 1635/1885 1635/1885

Sectionalising metering cubicle, typeSMD, is mainly used when medium vol-tage metering is required and/or whenthere is a requirement to sectionalisethe switchgear. Cubicle is based onoperation of two separetly operated3-position, SFG type switch disconnec-tors. Switch disconnectors are locatedat both ends of the secitonalised bus-bar. DIN size VT’s and CT’s are avail-able on right hand side of the switchgear.

3-position switch disconnectors areinterlocked with cubicle front door andaccess into cable compartment ispossible only when both switch discon-nectors are in earthed-position.

Basic equipmentTop unit on left hand side, including– 3-position switch disconnector or

bushing– operation mechanism with

mechanical position indication– integrated low voltage compartment– interlocking unit– busbars– earthing bar

Top unit on right hand side, including– 3-position switch disconnector or

bushing– operation mechanism with

mechanical position indication– integrated low voltage compartment– interlocking unit– busbars– earthing bar

Bottom unit, including– enclosure of busbar compartment

Cubicle Accessories– integrated voltage indicators or socket

interface for portable indicators– auxiliary contacts for close

(2NO-2NC) and earth (2NO+2NC)position

– gas density indication with alarmcontact for switch disconnector

– current transformers– voltage transformers– channel for control cables– arc-gas channel– anti condensation heater– through-going earthing bar– apparatus earthing bar

UNIS 5 GB

24 ABB

Uniswitch

Cubicle Types4.12Sectionalising Metering Cubicle,type SMC

Technical Data SMCRated voltage [kV] 12 17,5 24Rated current [A] 630/800 630/800 630Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 750 750 750- depth [mm] 940+215 940+215 940+215- height [mm] 1635/1885 1635/1885 1635/1885

Sectionalising metering cubicle, typeSMC, is mainly used when mediumvoltage metering is required and/or whenthere is a requirement to sectionalise theswitchgear. Cubicle is based on ope-ration of one rail mounted circuit breakerand two separetly operated 3-position,SFG type switch disconnectors. Switchdisconnectors are located at both endsof the secitonalised busbar with thecircuit breaker in between, after left handside switch disconnector. DIN size VT’sand CT’s are available on right hand sideof circuit breaker, in previously mentionedorder.

3-position switch disconnectors areinterlocked with cubicle front door andaccess into cable compartment ispossible only when both switch discon-nectors are in earthed-position.

Basic equipmentTop unit on left hand side, including– 3-position switch disconnector or

bushing– operation mechanism with

mechanical position indication– integrated low voltage compartment– interlocking unit– busbars– earthing bar

Top unit on right hand side, including– 3-position switch disconnector or

bushing– operation mechanism with

mechanical position indication– integrated low voltage compartment– interlocking unit– busbars– earthing bar

Bottom unit, including– enclosure of busbar compartment

Cubicle Accessories– circuit breaker, vacuum- or SF6-type– integrated voltage indicators or socket

interface for portable indicators– auxiliary contacts for close

(2NO-2NC) and earth (2NO+2NC)position

– gas density indication with alarmcontact for switch disconnector

– current transformers– voltage transformers– channel for control cables– arc-gas channel– anti condensation heater– through-going earthing bar– apparatus earthing bar

UNIS 5 GB

25ABB

Uniswitch

Cubicle Types4.13Bus Metering Cubicle,type BMC

Technical Data BMCRated voltage [kV] 12 17,5 24Rated current [A] 630/1250 630/1250 630/1250Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 750 750 750- depth [mm] 1000 1000 1000- height [mm] 1635/1885 1635/1885 1635/1885

Metering cubicle, type BMC, is mainlyused when medium voltage metering isrequired. DIN size VT’s and CT’s areavailable on right hand side of cubicle.Access into cable compartment ispossible only when the interlockingunit is in the door open position.

Basic equipmentTop unit on left hand side, including– integrated low voltage compartment– interlocking unit– busbars– earthing bar– bushings

Top unit on right hand side, including– integrated low voltage compartment– interlocking unit– busbars– bushings

Bottom unit, including– enclosure of busbar compartment

Cubicle Accessories– integrated voltage indicators or socket

interface for portable indicators– current transformers– voltage transformers– channel for control cables– arc-gas channel– anti condensation heater– through-going earthing bar

UNIS 5 GB

26 ABB

Uniswitch

Cubicle Types4.14Universal Metering Cubicle,type UMC

Technical Data UMCRated voltage [kV] 12 17,5 24Rated current [A] 630/1250 630/1250 630/1250Rated short-time withstand current [kA] 25 20 20Max. rated duration of short circuit [s] 1 1 1Cubicle dimensions

- width [mm] 750 750 750- depth [mm] 1000 1000 1000- height [mm] 1885 1885 1885

The Universal metering cubicle, typeUMC, is used when special arrange-ments with medium voltage meteringare required. The cubicle is very flexibleand fulfils most customer requirementsof metering and cable arrangements.Please see the available busbar con-figurations in the sketch below.

Thanks to a universal instrument trans-former assembly device, different typesof VT’s and CT’s are possible to installin the cubicle. To provide full flexibility,the busbars in the cubicle will be madeto order, or by the customer. Access intothe cable compartment is only possiblewhen the interlocking unit is in the dooropen position.

Basic equipmentTop unit on left hand side, including– integrated low voltage compartment– interlocking unit– earthing bar– bushings

Top unit on right hand side, including– integrated low voltage compartment– interlocking unit– bushings

Bottom unit, including– enclosure of busbar compartment– instrument transformer assembly

device

Cubicle Accessories– integrated voltage indicators or

socket interface for portableindicators

– current transformers– voltage transformers– channel for control cables– arc-gas channel– anti condensation heater– through-going earthing bar

6 main configurations