2 ABB
UniswitchContent
1. Design philosophy ............................... 32. Applications ......................................... 53. Switchgear construction ....................... 64. Cubicle types ........................................ 9
5. Components & accessories ............... 21
7. Ordering example ................................. 38
6. Technical data / dimensions ................ 30
4.1 Cubicle program ................................... 94.2 Cubicle type SDC ..................................... 114.3 Cubicle with fuse, type SDF .................
12
4.4 Cubicle type ZS8.X ...............................13
4.5 Cubicle type DBC ................................14
4.6 Cubicle type SEC ................................15
4.7 Cubicle type SMC ...............................16
4.8 Cubicle type BRC ...............................17
5.1 Mechanism,types single and double spring ...............18
5.2 Switch disconnector , type SFG ............. 195.3 Busbar arrangement .............................. 205.4 Motor operation of switch disconnector .....215.5 Earthing switches................................... 225.6 Vacuum Circuit Breaker VD4-S ..............235.75.8
Fuse link type CEF ................................ 24
5.95.10
Low voltage compartment .....................26
5.1 1
Voltage presence indicating system ......27Control cable entries .............................. 28Arc gas channel ..................................... 29
6.1 Cubicle dimensions .............................. 306.2 Floor plan ............................................. 316.3 Cable arrangement .............................. 346.4 Technical data / Dimensions ................. 36
3ABB
1.Uniswitch, need to say more?
Uniswitch
Design Philosophy
Uniswitch, the light flexible switchgear developed as a modular, simpleto apply design, with fewer components, providing a high reliable,quality and safe product for you, our Customer.
By reducing the number of components, uti-lising modern materials correctly, we havedeveloped an environmentally and userfriendly product. The simple design andconstruction of Uniswitch will stand the testof time for generations to come.
Uniswitch is an air insulated (AIS), metalenclosed, switchgear cubicle design of thenext generation developed through conti-nuous innovation and vision to meet thechanging market needs. The standard cubicleis powder pointed light gray (RAL 7035) onvisible parts.
Uniswitch provides long-term technical solu-tions for various applications. Safety, userfriendliness and environmental concerns havebeen the driving force in the development ofthe switchgear.
Uniswitch switchgear is a compact solutionfor a fully automated power distribution net-work. Supported by sensor technology andthe latest in protection relays, it meets even themost demanding requirements in hospitalsand airports.
Uniswitch is a worldwide switchgear deve-lopment utilising the global experience of ABBto incorporate the needs of Customers fromall over the world. Uniswitch switchgear isavailable from the ABB worldwide networkof Companies.
4 ABB
Uniswitch market segment
Uniswitch
Light compactdistribution switchgear
Ring Main Unit forapplications like:
Residential suburbanElectrical distributionCompact secondary
substation
Heavy switchgearfor demanding
applications including:Primary substations
Power plantsRailwaysMarine
Secondary substationsManufacturing industry
Shopping centresAirports
MetroWindmills
Small/medium sizepower plants
HospitalsSportcenters
Etc.
Switchgear for electricitydistribution application such as:
Uniswitch product provides our Medium Voltage Customer with the best solution for heavy dutyswitchgear in a size only a little than a single tank Ring Main Unit while including:ñ the flexibility in meeting our Customers specification and accomodating on future change and upgradingñ the options include complete control, measuring and protection systems
Uniswitch
Applications2.
1. Airport2. Utility3. Hospital4. Power Plants, Diesel/gas engine (built by W‰rtsil‰)
5. Industry6. Windmills7. Sports center (Botnia Hall, Vaasa)
8. Metro9. Shopping center
5ABB
6 ABB
3.
1
2
3
4
Metal enclosed, cubicle type switchgear
Uniswitch
Switchgear Construction
1. Busbar compartmentThe busbar compartment is located on the top of the cubicle. Thiscompartment contains the main busbars that intreconnect betweenswitchgear cubicles.
2. Switching compartmentA 3-position SF6 switch disconnector with epoxy cast resin housingis provided with inspection windows and available also with gasdensity indicator.
3. Cable compartment75 % of the space in the switch disconnector cubicle is reserved forpower cable connection making it possible to use both 1- and 3-phasecables with most simple unscreened terminations. Space is alsoadequate for cubicle accessories such as surge arresters, currenttransformers, second earthing switch etc. The door has an inspectionwindow and safety interlocking as standard. For cable entry there are3 individual cable gland plates in the bottom with support for a suitabledimensioned cable clamp. The bottom and the threshold of the cubiclecan be removed for ease of cable installation.
Busbar compartment
Switching compartment
Cable compartment
Mechanism, interlocking andlow voltage compartment
4. Mechanism, Interlocking andLow Voltage compartment
Behind a hinged door (which serves as control panel) are located thespring operating mechanism with position indicator and the mechani-cal interlocking unit. There are also facilities for cubicle accessoriessuch as: auxiliary contacts, tripping coil, emergency tripping mecha-nism, capacitive voltage presence indicating system, key interlocks andmotor operating device. Space is also provided for control circuits andmeasuring instruments as well as a protection relay. In the 750 widecubicles there is also a second indentical compartment for furtheraccessories.
The upper part of the cubicle, including the busbar compartment, theswitch disconnector and the mechanism and LV compartment isseparated from the lower part and the cable compartment. Because ofthis it is possible to carry out maintenance, repair and upgrading ofthe unit in the lower module while the switchgear is in service.
41
2
3
7ABB
1
2
Primary part
1 Top unit- 3-position switch disconnector SFG- Operating mechanism with mechanical
position indication- Enclosure of busbar compartment- Integrated low voltage compartment for
secondary components- Interlocking unit- Busbars- Control cable ducts
Uniswitch
Switchgear Construction
2 Bottom unit- Enclosure- Current transformers- Earthing switches- Voltage transformers- Cable entry with cable support
3.
8 ABB
Switch Disconnector Cubicle, type SDC
Width: 375 or 500 mmHeight: 1635 or 1885 mm
Uniswitch
Cubicle Program
Width: 500 mmHeight: 1635 or 1885 mm
4.1
Switch Disconnector with fuse Cubicle, type SDF
Width: 375 or 500 mmHeight: 1635 or 1885 mm
Width: 500 mmHeight: 1885 mm
Circuit Breaker Cubicle, type CBC
Width: 650 mmHeight: 1885 mm
9ABB
Sectionalizing Cubicle, type SEC
Width: 750 mmHeight: 1635 or 1885 mm
Width: 750 mmHeight: 1635 or 1885 mm
Uniswitch
Cubicle Program
Direct Busbar connection Cubicle, type DBC
Width: 375 or 500 mmHeight: 1635 or 1885 mm
Width: 500 mmHeight: 1635 or 1885 mm
4.1
11 ABB
Uniswitch
Cubicle Program
Width: 750 mmHeight: 1635 or 1885 mm
Width: 750 mmHeight: 1635 or 1885 mm
Sectionalizing Metering Cubicle, type SMC
4.1Bus Riser Cubicle, type BRC
Width: 375 or 500 mmHeight: 1635 or 1885 mm
Width: 500 mmHeight: 1635 or 1885 mm
11ABB
Switch Disconnector Cubicletype SDC
Uniswitch
Cubicle Types4.2Basic 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 socket
interface for portable indicators- auxiliary contacts for each position,
2NO+2NC- gas density indication with alarm
contact- motor operation device- current transformers- arc-gas channel- channel for control cables- surge arresters- anti condensation heater- through-going earthing bar- apparatus earthing bar
Data SDCRated voltage [kV]Rated current [A]Rated short-time withstand current [kA]Max. rated duration of short circuit [s]Cubicle dimensions
- width [mm]- depth [mm]- height [mm]
12630252
375/500940+60
1635/1885
24630203
375/500940+60
1635/1885
Switch disconnector cubicle type SDC, ismainly used as an incoming, ring or branchcubicle. The basic unit is equipped with anSF6-insulated, 3-position switch disconnectortype SFG with its operation mechanism. The3-position switch disconnector may be in oneof three positions, "closed", "open" or "earthed",therefore preventing incorrect operation.Access to the cable compartment is possiblein earthed position. The position indicator ofthe switch disconnector (SFG) fulfils therequirements of the standards IEC 129 A2(1996), which determine the requirementsfor such an indicator. "Open" and "earthed"positions are "visible" through the inspectionwindows placed behind the low voltagecompartment door. Inspection of cableconnections and fault indicators, when used,is easily carried out through the front-doorwindow.
For safe cable testing a unique interlockingmechanism is included as standard feature.
12 ABB
Switch Disconnector Cubicle,with fuse type SDF
Data SDFRated voltage [kV] 24Rated current (max. fuse) [A] 80Rated short-time withstand current [kA] 20Max. rated duration of short circuit [s] 3Fuse length [mm] 442Cubicle dimensions
- width [mm] 375/500- depth [mm] 940+60- height [mm]
12125252
292/442
375/500940+60
1635/1885 1635/1885
Uniswitch
Cubicle Types4.3Fused switch disconnector cubicle type SDF,is primarily used for transformer protectionvoltage metering. The cubicle is equippedwith a SF6-insulated, 3-position switchdisconnector and with earthing switch. Forfuse earthing, the integrated earthing switchoperates on the upstream side and separateearthing switch operates on the downstreamside of the fuses.The mechanism used is adouble spring mechanism with automaticfuse-tripping. Access to cable compartmentis possible in earthed-position. The positionindicator of the switch disconnector (SFG)fulfils the requirements of the standards IEC129 A2 (1996), which determine the require-ments for such an indicator. “Open” and“earthed” positions are “visible” throughinspection windows placed behind the lowvoltage compartment door. Inspection ofcable connections and fault indicators whenused, is easily carried out through the front-door window.
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 portable indicators– auxiliary contacts for each position,
2NO+2NC– gas density indication with alarm
contact– 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
13ABB
Circuit Breaker Cubicletype ZS8.X
Data ZS8.X
Uniswitch
Cubicle Types4.4Basic equipmentTop unit , including– low voltage room– shell body of busbar room– busbar
Middle unit , including– breaker room
moveable VD4 vacuum breaker––
enclosure of busbar compartment
Bottom unit, including– enclosure of cable compartment– inlet of cable, with cable support– grounding busbar plate
Cubicle Accessories– current mutual-inductor– voltage mutual-inductor– displayer with electricity– pressure releasing channel– insulated partition
ZS8.X type circuit breaker is used for the leading-in of Uniswitch cabinet, with rated current 1250A.The cabinet is equipped with moveable VD4 vacuum breaker. Operator can obs-erve the handcart position of breaker th-rough the window on the door of breaker room, or observe the connecting of cable through the window on the door of cable room. The breaker cabinet could also be equipped with current mutual-inductor and voltage mutual-inductor.
Rated voltage [kV] 12Rated frequency voltage endurance(1 min)[kV] 42Rated impulse voltage endurance [kV] 75Frequency [Hz] 50Rated main busbar current [A] 1250Rated peak value current [kA] 80Rated resistance current in short time [kA] 31.5Rated continuous time in short circuit [s] 3Auxiliary power supply voltage [V] AC: 110, 220 DC: 24, 48, 60, 110, 220Overall dimension- Width [mm] 650- Depth [mm] 1257- Height [mm] 1885
14 ABB
Direct Busbar Cubicletype DBC
Uniswitch
Cubicle Types4.5Basic equipmentTop unit, including– busbar supports– 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
Cubicle Accessories– integrated voltage indicators or socket
interface for portable indicators– current transformers– earthing switch for CT’s (EM)– arc-gas channel– channel for control cables– surge arresters– anti condensation heater– through-going earthing bar
Data DBCRated voltage [kV] 12Rated current [A] 1250Rated short-time withstand current [kA] 25Max. rated duration of short circuit [s] 2Cubicle dimensions
- width [mm] 375/500- depth [mm] 940+60- height [mm] 1635/1885
24630203
375/500940+60
1635/1885
To connect cables to the busbars, a busbarconnection cubicle is available. This cubicleis equipped with connection lugs for fixing thecables. CT's can be installed in the 500 mmcubicle.
The front door is fixed and can only beopened with a tool when earthing switch is notincluded.
15ABB
Data SECRated voltageRated currentRated short-time withstand currentMax. rated duration of short circuitCubicle dimensions
- width- depth- height
[kV][A][kA][s]
[mm][mm][mm]
12630252
375/500940+60
1635/1885
24630203
375/500940+60
1635/1885
Sectionalizing Cubicletype SEC
4.6 Uniswitch
Cubicle Types
Basic equipmentTop unit, including– 3-position switch disconnector– operating mechanism with mechanical
position indication– enclosure of busbar compartment– integrated low voltage compartment– interlocking unit– earthing bar
Bottom unit, including– enclosure with sectionalizing busbars– bottom cover
Cubicle Accessories– integrated voltage indicators or socket
interface for portable indicators– auxiliary contacts for each position,
2NO+2NC– gas density indication with alarm
contact– 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 sectionalizing cubicle is always usedtogether with the bus riser cubicle. The stan-dard version with 375 mm width is equippedwith a SF6-insulated, 3-position switchdisconnector for sectionalizing the busbars.Earthing facility is provided always as astandard.
Upper part of the right side including units: 3 station-type loading switch Operated mechanism equipped with mechanical position indicator Integrated low-voltage chamber Interlocking device BusbarUpper part of the left side including units: 3 station-type loading switch Operated mechanism equipped with mechanical position indicator Interlocking device BusbarLower part including units: Shell body of cable roomOptional components of cabinet: Insert interface of integrated electricity displayer or portable electricity displayer Auxiliary contacting point of each position, with 2 always open and 2 always closed. Gas density meter or gas density device with alarming contact. Emergency tripping mechanism Breaking coil Power operated device Voltage mutual-inductor Current mutual-inductor Pressure releasing channel Control cable channel Grounding busbar
16 ABB
Sectional measuring cabinettype SMC
Technical data
Uniswitch
Cubicle Types4.7Basic equipment
––
–––
–––
––
–
Two independent operated SFG type 3 station-type loading switches can be installed in the SMC type sectional measuring cabinet. The two loading switches are placed at both ends of the sectional busbar.There is interlock between the loading switch and the front door of cabinet. The front door can't be opened unless both loading switches at the grounding positions.
––
–
–
–––
––
––
–
Rated current [A]630Rated resistance current in short time[kA]25Rated continuous time in short circuit[s]2Overall dimension- Width[mm]750- Depth[mm]1000- Height[mm]1635, 1885
17ABB
Bus Riser Cubicletype BRC
Data BRCRated voltage [kV] 12 24Rated current [A] 630/1250 630/1250Rated short-time withstand current [kA] 25 20Max. rated duration of short circuit [s] 2 3Cubicle dimensions
- width [mm] 375/500 375/500- depth [mm] 940+60 940+60- height [mm] 1635/1885 1635/1885
Uniswitch
Cubicle Types4.8Basic equipmentTop unit, including– switch substitute– enclosure of busbar compartment– integrated low voltage compartment– earthing bar
Bottom unit, including– enclosure with bus riser bars– bottom cover
Cubicle Accessories– 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– integrated voltage indicators
Bus riser cubicle, type BRC, connects thebusbar to the bottom of a sectionalizingcubicle with circuit breaker or switchdisconnector. This 500 mm width cubicle canbe used as a metering cubicle with space for3 CTs and 3 VTs. The front cover is fixed tothe cubicle and has to be released with a tool.The front door has a window for inspection.
18 ABB
Uniswitch
Components & Accessories5.1Mechanism
UES-A3/2 double springoperating deviceThe UES-A3/2 is used together with the switchdisconnector type SFG and the cubicles ofSDF.
The same mechanism is used to operate theswitch positions between OPEN ñ CLOSEand OPEN ñ EARTH. The UES-A3/2 is alsoused to operate the earthing switch EF. Therehas to be always the central interlockingmodule 1VFJ220001R2 fully assembledin the front of the UES-A3/2 during theoperation.
The UES-A3/2 uses the energy stored in 2 flatsprings. One (K-spring) to close and open theswitch disconnector and another (A-spring)to rapidly open the switch-disconnector.The A-spring charges the K-spring. The Aspring is charged during the manual or motoroperation from the open to the close positiononly once. During the operation the A-springwill be locked and not released before theimpulse from the fuse, shunt trip-coil ormechanical push button. Before that theUES-A3/2 can be used similarly to UES-K3/2.The operation shaft has to be returned to theopen position after the tripping.
The total manual operation angle is approxi-mately 180° (90°+ 90°). The switch iscon-nector is closed by a clockwise operation andthe earthing switch is closed by an anti-clockwise operation.
The mechanism is maintenance free duringthe whole lifetime (i.e. 30 years) in normalconditions. Mechanical endurance is 2000C/O (5000 C/O in a motor use only) and 1000O/Earth.
The UES-A3(M)/2 can be equipped with– Shunt trip-coil type
- 24VDC =1VFJ120007R2 -24VDC- 48VDC =1VFJ120007R2 -48VDC- 60VDC =1VFJ120007R2 -60VDC
- 110VDC =1VFJ120007R2 -110VDC- 220VDC =1VFJ120007R2 -220VDC- 110VAC =1VFJ120007R2 -110VAC- 230VAC =1VFJ120007R2 -230VAC
– Mechanical push button for a rapidopening, type 1VFJ120042R2
– For motor operation device UES-A3M/2
UES-K3/2 single springoperating mechanismThe UES-K3/2 is used together with the switchdisconnector type SFG and the cubicles of– SDC– SEC– SMC
The same mechanism is used to operate theswitch positions between OPEN ñ CLOSEand OPEN ñ EARTH. There has to be alwaysthe central interlocking module 1VFJ220001R2fully assembled in the front of the UES-K3/2during the operation.
The UES-K3/2 uses the energy stored in aflat spring to close and open the switchdisconnector. The total operation angle isabout 180° (90° + 90°). The switch disconnectoris closed by a clockwise operation and theearthing switch is closed by an anti-clockwiseoperation.
The mechanism is maintenance free duringwhole lifetime (i.e. 30 years) in normal condi-tions. Mechanical endurance is 5000 C/Oand 1000 O/Earth.
The UES-K3/2 can be equipped with motoroperating device UEMC40K8-U/1.The opening time from the impulse is about40 ms.
Central interlocking moduleThere is a new central interlocking moduletype 1VFJ220001R2 used in Uniswitch. Themodule is used to avoid any incorrectoperations and to give more alternatives tointerlock. Padlocks can be used to interlock.Can be equipped with a fast lock.
Position indication andoperator interface moduleDifferent colors of position indication labelsare available.As a standard white color has been used inthe module type 1VFJ120005R2.
Manual operation handleTo avoid any incorrect operations use themanual control handle type 2183-2720CNTHBR1only.
Single spring mechanism
Single spring mechanismwith motor
Double spring mechanismwith motor
19ABB
Switch disconnector, type SFGThe switch disconnector, type SFG, has thefollowing 3 positions:– CLOSE– OPEN– EARTHING
The switch disconnector is using SF6 asextinguishing and insulation medium. Theswitch housing is equipped with two thermoplastic windows to allow visual inspection.Each switch is sealed for life (i.e. 30 years)and maintenance free. SF6 gas pressure is1.4 bar and the SFG switch incorporates acapacitive divider for voltage indication.Mechanical endurance is 5000 C/O and 1000O/Earth.The switch and operation mechanism areinstalled in a removable top unit, making iteasy to convert SDF to a SDC cubicle, or viceversa.
Switch types– SFG with UES-K3 operating mechanism– SFG with UES-A3 operating mechanism
Optional equipmentAuxiliary contacts:– closed position 2NO-2NC– earth position 2NO-2NC
Shunt trip coil:For SFG with UES-A3 operating mechanism.
Push-button for mechanical tripping of SFGwith UES-A3 operating mechanism.
Motor operation: See item 5.4.
Uniswitch
Components & Accessories5.2
oRated v ltage Ur 24
Rated lightning impulse withstand voltage UpCommon value 125Across the isolating distance 145
Rated short-duration power-frequency withstand voltage UdCommon value 50Across the isolating distance 60
Rated frequency 50/60Rated current Ir 630
Rated short-time withstand current 20Max. rated duration of short circuit 3Rated peak withstand current 50
Breaking capacity (IEC 60265-1)Mainly active load 630Closed-loop distribution circuit current 630Cable-charging current 50/10Line-charging current 20Cable and line charging current under earth faults 87
Making capacity (IEC 60265-1) 50
Making and breaking capacity (IEC 60420)Withstanding and making the cut-off current of the fuse 20Breaking test with long prearcing time of fuse okBreaking capacity at rated transfer current 920
Mechanical endurance of switch c/o 5000Mechanical endurance of earthing switch c/o 1000
Ambient temperatureMaximum value + 40Maximum value of 24 h-mean + 35Minimum value - 5 3)
Altitude above sea level
[kV]
[kV][kV]
[kV][kV][Hz][A]
[kA][s]
[kA]
[A][A][A][A][A]
[kA]
[kA]
[A]
[˚C]
[m]
12
85110
4249
50/60800
252
62,5
630/800630
50/102087
62,5
25ok
1500
50001000
+ 40+ 35- 5 3)
<1000 2) <1000 2)
1) Highest values in accordance with national standards.2) Adjustment is necessary for greater altitudes.3) Lower ambient temperature on request.
20 ABB
Busbar arrangementThe copper busbars are located in the TopUnits in their own compartment. The busbarsare provided in sections and connect thecubicles together. This arrangement makesit easy to extend the switchgear.
Busbar set 12/kV,630/1250 APanel width 375 mmPanel width 500 mmPanel width 750 mm
Busbar set 24 kV, 630 A(Insulated with heat shrink sleeve)Panel width 375 mmPanel width 500 mmPanel width 750 mm
Field control caps for 24 kV
Uniswitch
Components & Accessories5.3
Data busbarRated voltage [kV] 12 24Rated current [A] 630/1250 630Rated short-time withstand current [kA] 25 20Max. rated duration of short circuit [s] 2 3Material Cu CuInsulation no yesDimension [mm] 40x8 40x8
21ABB
Motor operation ofswitch disconnector
For single spring mechanism
Uniswitch
Components & Accessories5.4For electrical or remote operation of the switchdisconnector type SFG a motor operationdevice and a control unit are available for allcubicles.
The motor operating devices and the controlunit are mounted in the low voltage compart-ment. They can be mounted without anyadditional parts.
The motor operating devices are DC ope-rated and a rectifier is used when AC supply.For control of motor operating device 2NO+ 2NC aux. contacts on switch disconnectorare required.
The motor operation device types whenmechanism UES-K3/2 is used
Type
UEMC 40 K8-24 VDC/3UEMC 40 K8-48 VDC/3UEMC 40 K8-60 VDC/3UEMC 40 K8-110 VDC/3UEMC 40 K8-125 VDC/3UEMC 40 K8-220 VDC/3
Includes:– Motor– Position limit switches
The operating device type UES-A3M/2 has tobe chosen instead of type UES-A3/2 when adouble spring device is needed.
Control push buttonsIncludes:– I-button with text CLOSE– O-button with text OPEN– On/Off selector switch with
text REMOTE ON/OFF
For double spring mechanism
Type
1VFU 12003R2-24VDC1VFU 12003R2-48VDC1VFU 12003R2-60VDC1VFU 12003R2-110VDC1VFU 12003R2-125VDC1VFU 12003R2-220VDC
Includes:– Motor + double spring device– Position limit switches
The operation shaft has to be returned tothe open position after the motorized openoperation if a manual closing is to be exe-cuted.
22 ABB
Earthing Switches
Technical Data IEC 129/265-1Rated voltage 12 kV 24 kVMaking capacity
EF - 210 [kA] 5 5EM - 210 [kA] 62,5 50
The main earthing switch is incorporated inthe switch disconnector SFG. The earthingswitch has 3 double bladed moving knives.The fixed contacts are connected togetherto a common earthing bar inside the switchhousing.
The earthing switch, type EF, has reducedmaking capacity due to the fact that no fullshort circuit current can occur (Fuse down-stream).
Earthing switch, type EM, is used for earthingcurrent transformers and circuit breaker.
All earthing switches have true position indi-cators through the front door and are ope-rated by the main operating shaft in the frontof the panel.
For fuse base (down-stream)EF - 210
For current transformers (down-stream)EM - 210
Optional equipment– auxiliary contacts 2NO-2NC
+ extension 2NO-2NC
Different configurations
EM
EF
SFG
Uniswitch
Components & Accessories5.5
23ABB
Vacuum Circuit Breaker
Uniswitch
Components & Accessories5.6CBC-D type breaker cabinet adopts the VD4 vacuum breaker, which technology and main components are provided by CALOR-EMAG Company, Germany, and assembled and man-ufactured in CNDMX. The breaker is fully conforming to the IEC60056 and GB1984.
VD4 vacuum breaker can be operated freque-ntly in the scope of working current, open and close short circuit current many times. It app-lies to reclosing operation, with extreme high reliability of operation.
As for detailed technical parameter of VD4 vacuum breaker, refer to product specification of the breaker.
24 ABB
Fuse link type CEFThe Uniswitch system is designed forHRC-fuses according to IEC Publication 282-1.The dimensions are in accordance to DIN43625 with length «e» 292 mm for 12 kV and442 mm for 24 kV. To select and orderfuse for the transformer protection see tablebelow.
The lower fuse contacts are mounted on theinsulators. These insulators can be selectedwith or without capacitive voltage trans-mitters.The upper fuse contact with fuse trippingrelease is fixed directly on the switch-disconnector.
Medium voltage - HRC fuse links
Selection of fuses: According to IEC 60420
Uniswitch
Components & Accessories5.7
1) Unique ratings on request
Type Rated Rated e/d Ident. No.voltage current
kV A mmCEF 12 6 292/65 NHPL052721R1
10 292/65 NHPL052723R116 292/65 NHPL052724R125 292/65 NHPL052725R140 292/65 NHPL052726R150 292/65 NHP241036R1263 292/65 NHPL052727R180 292/87 NHPL052703R1
100 292/87 NHPL052728R1125 442/87 NHPL052704R1
CEF 24 6 442/65 NHPL052741R110 442/65 NHPL052743R116 442/65 NHPL052744R125 442/65 NHPL052745R140 442/65 NHPL052746R150 442/87 NHP241038R663 442/87 NHPL052747R180 442/87 NHP200473R2
Transformer rating [kVA]57 75 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500
Fuse selection (ratings in Amps)3 25 25 40 40 63 63 63 80 100 1005 16 25 25 25 40 40 63 63 63 80 100 1006 16 16 25 25 25 40 40 63 63 63 80 100 10010 10 16 16 16 25 25 25 40 40 63 63 63 80 100 10012 10 16 16 16 16 25 25 25 40 40 63 63 63 80 100 12515 10 10 16 16 16 16 25 25 25 40 40 63 63 63 100 10020 10 10 10 16 16 16 16 25 25 25 40 40 63 63 63 80 1)24 10 10 10 10 16 16 16 16 25 25 25 40 40 63 63 63 80
Ope-ratingvoltage kV
S L J series of fuse
25ABB
The product, manufactured by Xian Fuse Plant, is suitable for indoor AC 50 Hz, rated voltage 12KV system. Length of 12KV is 292mm. The type of specification as follows:
S L J
Choose and order for the fuse with transformer protection, see the table below:
Uniswitch
Components & Accessories5.7
Transformer rating [kVA]
Insert type
N: none; A: power type; D: spring type
Length of fuse piece: 292mm
Diameter of fuse piece: D=51mm, F,K=76mm
New type fuse with transformer protection
Transformer preliminary voltage 10kV
Type of fuse Rated current of fuse [A]
100 12KVSDLDJ 16
125 12KVSDLDJ 16
160 12KVSDLDJ 16
200 12KVSDLDJ 20
250 12KVSDLDJ 25
300/315 12KVSDLDJ 31.5
400 12KVSDLDJ 40
1250 12KVSDLDJ 100
1250 12KVSDLDJ 125
500 12KVSDLDJ (SFLDT) 50
630 12KVSDLDJ (SFLDT) 63
750/800 12KVSDLDJ 80
1000 12KVSDLDJ 80
26 ABB
Low Voltage CompartmentThe Uniswitch system contains an integratedlow voltage compartment whitch is segre-gated from the high voltage side by a metalpartition.
For 750 mm wide cubicles the LV compart-ment consists of two 375 mm compartments.In 750 mm cubicles the left compartment isreserved for meters, switches & push but-tons (front door) and terminal blocks, mcb¥s& auxiliary relays (rear plate). The right sidecompartment's upper side is reserved for pro-tection relays (SPACOM 100 or 300 series)and the lower side for the SFG switchdisconnector's operating device.
For 375 mm and 500 mm wide cubicles the LVcompartments upper side is reserved for ter-minals. The lower side for the SFG switchdisconnector¥s operating device.
Uniswitch
Components & Accessories5.8
Front view750 mm (CBC) cubicle
750 mm (CBC) cubicle(one part)
375 mm (SDF) cubicle
Cable inlet from cable channel, panel andbetween different panels are shown in item5.13.
The pictures on the left show examples ofhow the components can be arranged in thelow voltage compartment.
Other arrangements and special applicationsare available on request.
Protection relay
LV compartment
Measurements375/500 x 580 x 120 mm(width x hight x depth)
27 ABB
Uniswitch
Components & Accessories5.9 Condenser-type displayer with electricity
It applies to middle voltage(°› 6kV) switch cabinet with high capacity-resistance display system with electricity (VIS), conforming to IEC61243-5.Choose of electricity displaying system:- DXN-T Suggesting style indicator Transfer signal to indicator from three high voltage electrification sensors.Press the key of indicator to indicate high voltage electrification.- DXN-Q Locking style Transfer signal to indicator from three high voltage electrification sensors.Press the key of indicator to indicate high voltage electrification. When there is high voltage electrification signal,the indicator forces the electromagnetic relay to lock the high voltage electrical equipment.
Specificattion
StyleMinimum input Maximum input Secondary power Electromagnetic current current Relay capacityDXN-T 40uA 5000uADXN-Q 40uA 5000uA AC 220V/110V 7A/250V AC DC 220V/110V 7A/30V DC
High voltage capacitance sensor fits: High voltage capacitive senson produced by production of KUVAG,JORDAN and RISHO.
28 ABB
Uniswitch
Components & Accessories5.10Control cable entriesIn the basic cubicle the control cable entryis in the bottom (1). An internal cable duct30 x 60 mm is supporting the cable fromthe bottom up to the upper part (TopUnit).Internal wiring between cubicles (5) is easilydone through openings in side walls.
Several options are available (2, 3, 4, 6) forcontrol cable inlet.
(2) At both ends of the switchgear, it ispossible to have side ducts mounted.
(3) A duct can also be placed on top of theswitchgear supportning cables coming frome.g. overhead cable ladder (4).
..
5
43
2
1
2 6 1
5 5
115
29ABB
Uniswitch
Components & Accessories5.11Arc gas channel
To ventilate the arc-gas out in a certain direc-tion, arc-gas channels are available for theUniswitch system. Vertical channel (1) on therear of each cubicle has been connected toa common horizontal channel (2) on the top ofthe switchgear. The horizontal channel hasbeen connected to an opening (3) in the wall
of the switchgear room. The connecting pointfrom channel (2) to the opening will be locatedin the rear or in the end of the top channel (2).The opening (3) has been equipped with inpressure relief flap.
30 ABB
Cubicle dimensions
Uniswitch
Technical data / Dimensions6.1
Main dimensions and the need of space of circuitbreaker cubicle without arc channel
Main dimensions and the need of space of cubicleswithout circuit breaker and with arc gas channel
940
H =
163
5Al
t H
= 1
885
40
35
1000
250
1190
31ABB
Uniswitch
Technical data / Dimensions6.2Floor plan
32ABB
Uniswitch
Technical data / Dimensions6.2Floor plan
33ABB
Uniswitch
Technical data / Dimensions
�Connect with CBC ��
CBC -- UniSwitch installation form
CBC -- UniSwitch dimension of channel steel
��
6.2wall
channel steel
channel steel
secondary cable hole
channel steel channel steel
34 ABB
Cable arrangement
Uniswitch
Technical data / Dimensions6.3
Further information regarding cable arrangement is available in installation manual.
188
By H
/163
5 = 98
0 mm
By H
/188
5 = 12
30 m
m
288
By H
/163
5=46
mm
By H
/188
5=71
0mm
M12Hexagonal bolt
M12Hexagonal bolt
35ABB
Cable arrangement
Uniswitch
Technical data / Dimensions
Further information regarding cable arrangement is available in installation manual.
188
By H
/163
5
12/
17,5
kV
= 60
5
24
kV
=
455
By H
/188
5
12/
17,5
kV
= 85
5
24
kV
=
705
M12Hexagonal bolt
36 ABB
Rated voltage Ur [ kV] 12 24
Width / circuit breaker cubicle [mm] 750 750
Width / other cubicles [mm] 375/500 375/500
Height [mm] 1635/1885 1635/1885
Depth [mm] 940+60 940+60
Height / LV-compartment [mm] 450 450
Dimensions
Technical data
Uniswitch
Technical data / Dimensions6.4
1) Higher values in accordance with national standards on request2) Adjustment is necessary for greater altitudes3) Lower ambient temperature on request.
Rated voltage Ur [ kV] 12 24
Rated lightning impulse withstand voltage UpCommon value [kV] 75 125Across the isolating distance 85 145
Rated short-duration power-frequency withstand voltage UdCommon value [kV] 28 1) 50Across the isolating distance 32 1) 60
Rated frequency [Hz] 50/60 50/60
Rated current IrBusbar [A] 630/1250 630Feeder 630 630
Rated short-time withstand currentMain circuit [kA] 25 20Earthing circuit [kA] 25 20
Max. rated duration of short circuit [s] 2 3Rated peak withstand current [kA] 62,5 50Arc-fault current, 1s [kA] 20 20
Degree of protection (IP-code)For the enclosure IP2XC IP2XCFor the partitions IP 2X IP 2X
Mechanical endurance of switch c/o 5000 5000Mechanical endurance of earthing switch c/o 1000 1000
Ambient temperatureMaximum value [oC] +40 +40Maximum value of 24 h-mean +35 +35Minimum value -5 3) -5 3)
Altitude above sea level [m] <1000 2) <1000 2)
37ABB
Weights (without packing)
Tests and CertificatesType test according to IEC 60298 and certificated by SATSRoutine test IEC 60298Quality certificate ISO 9001Environmental certificate ISO 14001.
Uniswitch
Technical data / Dimensions
Note: Circuit breaker belonging to breaker cubicle is delivered in a separate packing.
1) without CT's and VT's2) without fuses3) without circuit breaker4) including CT's and VT's
Dimensions: (W x H mm) SDC 1) SDF 2) DBC 1) SEC 1) BRC 1) BMC 4)
- 375 x 1635 [kg] 130 140 110 140 140 -- 375 x 1885 [kg] 140 150 120 150 150 -
- 500 x 1635 [kg] 140 150 120 150 150 -- 500 x 1885 [kg] 150 160 130 16 0 160 -
- 750 x 1635 [kg] - - - - - 420- 750 x 1885 [kg] - - - - - 440
SDC SDF DBC SEC BRC SMC PT
38 ABB
Uniswitch
Ordering example7.
Mainoptions
Standardcubicletypes
Voltage indicators
Current transformers
Surge arresters
Voltage transformers
Height Width
1635 375
1635 500
1635 750
1885 375
1885 500
1885 750
[mm] [mm]
FusedSwitchDisconn.Cubicle
The standard range of cubicles and the main options
SwitchDisconn.Cubicle
PTCubicle
DirectBusbarConnectionCubicle
Sectional.CubiclewithLBS
BusRiserCubicle
Sectional.MeteringCubicle
ABB High Voltage Switchgear Co. Ltd., Beijing
Add: No 12 Jingyuan Street,Beijing Economic-Technological Development Area,Beijing, 100176, P. R. China
Tel : +8610 67818000Fax: +8610 67818001Web:www.abb.com