SF6 Gas Insulated Ring Main SF6 Gas Insulated Ring Main Unit &Compact Unit &Compact SwitchgearSwitchgear

WFR-12~24 WFR-12~24 Product presentationProduct presentation

GUANGZHOU F-UNITE SMART GUANGZHOU F-UNITE SMART ELECTRIC CO.,LTDELECTRIC CO.,LTD

广州五合智能电气有限公司广州五合智能电气有限公司

SecondarySecondarysubstationsubstation

DistributionDistributionsubstationsubstation

400 kV400 kV

40-70 kV40-70 kV

130 kV130 kV

11/22 kV11/22 kV

TransmissionTransmissionsubstationsubstation

Main substationMain substation

400 V400 V

TransformerTransformer

Secondary distributionSecondary distribution

RMU in networkRMU in network

Applicable standardsApplicable standards IEC 60265 :IEC 60265 : Switching and operations Switching and operations IEC 60420 :IEC 60420 : Switch-fuse co-operation Switch-fuse co-operation IEC 62271-200 :IEC 62271-200 : Alternating-current metal- Alternating-current metal-

enclosed switchgear and controlgear for rated enclosed switchgear and controlgear for rated voltages above 1kV and up to and including 52kVvoltages above 1kV and up to and including 52kV

IEC 62271-102 :IEC 62271-102 : High-voltage alternating High-voltage alternating current disconnectors and earthing switchescurrent disconnectors and earthing switches

IEC 62271-100 :IEC 62271-100 : High-voltage alternating High-voltage alternating current Circuit breakerscurrent Circuit breakers

GB3804: Alternating-current load switchgear for GB3804: Alternating-current load switchgear for rated voltages above 3.6kV and up to and rated voltages above 3.6kV and up to and including 40.5kVincluding 40.5kV

GB1984: High-voltage alternating current Circuit GB1984: High-voltage alternating current Circuit breakersbreakers

GB1985:High-voltage alternating current GB1985:High-voltage alternating current disconnectors and earthing switchesdisconnectors and earthing switches

GB16927: Switch-fuse co-operationGB16927: Switch-fuse co-operation GB3906:Alternating-current metal-enclosed GB3906:Alternating-current metal-enclosed

switchgear and controlgear for rated voltages switchgear and controlgear for rated voltages above 3.6kV and up to and including 40.5kVabove 3.6kV and up to and including 40.5kV

RMU applications RMU applications Compact secondary substationsCompact secondary substations Wind power plantsWind power plants Small industriesSmall industries BuildingsBuildings MiningMining Airports Airports Underground installationsUnderground installations

RMU - technical dataRMU - technical data

C F V

Cable switch Switch fuseVacuum circuit

breaker

Rated voltage 12/15/17,5/24 12/15/17,5/24 12/15/17,5/24Rated current 630 200 200Short circuit breaking current limited by fuse 21/21/16/16Making capacity 52,5/52,5/40/40 limited by fuse

Short circuit current 1 sec. **Short circuit current 3 sec. 21/21/16/16 21*/21*/16*/16*

* Requires 400 series bolted bushings** 1 sec. ratings on request

RMU modulesRMU modules

C- cable switchC- cable switch F-switch fuse disconnectorF-switch fuse disconnector V-vacuum circuit breakerV-vacuum circuit breaker Sl-busbar sectionaliserSl-busbar sectionaliser Sv-with vacuum circuit Sv-with vacuum circuit

breakerbreaker D-direct cable connectionD-direct cable connection De-with earthing switchDe-with earthing switch Be-busbar earthingBe-busbar earthing M-meteringM-metering

C - cable switchC - cable switch

Three position load break switchThree position load break switch Snap action or latched mechanismSnap action or latched mechanism Cable test bushings in front availableCable test bushings in front available

F – switch fuse F – switch fuse disconnectordisconnector

Switch fuse combinationSwitch fuse combination Three phase fuse trippingThree phase fuse tripping Mechanism pre-charged for trippingMechanism pre-charged for tripping Up and downstream dual earthing switchUp and downstream dual earthing switch No jammed fuse covers - open by handle No jammed fuse covers - open by handle Fuse tripping in front - real blown fuse Fuse tripping in front - real blown fuse

indicator indicator Fully submersible - unique for switch fuseFully submersible - unique for switch fuse 400 series cable bushings available400 series cable bushings available

V – vacuum circuit V – vacuum circuit breakerbreaker

630A or 200A vacuum 630A or 200A vacuum circuit breakercircuit breaker

Latched mechanism – close Latched mechanism – close and open coiland open coil

Separate isolator/earthing Separate isolator/earthing switchswitch

Protection as specified by Protection as specified by our customersour customers

Tripping facilitated for a Tripping facilitated for a wide range of relayswide range of relays

Sl – busbar sectionaliserSl – busbar sectionaliser

Three position load Three position load break switchbreak switch

Interlocked earthing Interlocked earthing switchswitch

Manual or motor Manual or motor operationoperation

Only 325mm wide when Only 325mm wide when placedplaced

between other modulesbetween other modules

Sv – with vacuum circuit Sv – with vacuum circuit breakerbreaker

630A vacuum circuit breaker 630A vacuum circuit breaker Separate isolator/earthing Separate isolator/earthing

switchswitch

D – direct cable D – direct cable connectionconnection

Direct cable connectionDirect cable connection

De – with earting switchDe – with earting switch

Direct cable connectionDirect cable connection Earthing switch with Earthing switch with

making capacitymaking capacity

Be – busbar earthingBe – busbar earthing

Busbar earthingBusbar earthing Earthing switch with Earthing switch with

making capacitymaking capacity

M - MeteringM - Metering

A

V

Air insulated and factory assembled moduleAir insulated and factory assembled module Type tested with specific transformersType tested with specific transformers 2 or 3 pcs DIN 42600 Narrow type CT’s with 2 or 3 pcs DIN 42600 Narrow type CT’s with

ribs.ribs. 3 pcs. DIN 42600 Narrow type single pole VT’s3 pcs. DIN 42600 Narrow type single pole VT’s Fuses on VT primary (optional)Fuses on VT primary (optional) 400series bushings for busbar connection400series bushings for busbar connection Bottom cable entry availableBottom cable entry available

Switchgear Design (C)Switchgear Design (C)

Three position switchThree position switch Switch, disconnector, Switch, disconnector,

earthearth Arc quenching by SF6 Arc quenching by SF6

gasgas Rough and reliable with Rough and reliable with

a minimum of partsa minimum of parts

Switchgear Design (F)Switchgear Design (F)

Fuse canisters isolated in Fuse canisters isolated in gasgas

Whole fuse system in one Whole fuse system in one module to simplify layoutmodule to simplify layout

No climatic deteriorationNo climatic deterioration Earthing on both sides - Earthing on both sides -

simultaneous upstream and simultaneous upstream and downstreamdownstream

Fuse cover interlock - no Fuse cover interlock - no hazardous accesshazardous access

Fuse solution – fully Fuse solution – fully submersiblesubmersible

Switchgear Design (V)Switchgear Design (V)

Vacuum circuit breakerVacuum circuit breaker Vacuum tube from ChinaVacuum tube from China Interruption in vacuumInterruption in vacuum Insulation provided by gasInsulation provided by gas Reliable and durableReliable and durable No consumable partsNo consumable parts Sealed for lifeSealed for life Separate earthing switchSeparate earthing switch

Fused protectionFused protection Switch fuse combination offers Switch fuse combination offers optimal short circuit optimal short circuit

protection:protection: Fast interruptionFast interruption Current limiting - reduces stressCurrent limiting - reduces stress Cost efficientCost efficient

Considerations:Considerations: Fuses are consumablesFuses are consumables Availability of stockAvailability of stock Transformer sizeTransformer size

Fuse selection table supplied with Fuse selection table supplied with each switchgear - accounting for each switchgear - accounting for thermal de-rating.thermal de-rating.

Relays - SelfpoweredRelays - Selfpowered

CT powered protection relay CT powered protection relay (no external power supply (no external power supply necessary)necessary)

EconomicalEconomical Easy adjustmentEasy adjustment Perfect for large distribution Perfect for large distribution

transformerstransformers Delivery range:Delivery range: Circutor MPRB 99: Easy to Circutor MPRB 99: Easy to

adjust, the classic solutionadjust, the classic solution WIC1: New flexible relay with WIC1: New flexible relay with

several characteristics several characteristics including definite timeincluding definite time

PR512: Relay with advanced PR512: Relay with advanced earth fault functionsearth fault functions

Relays – feeder Relays – feeder protectionprotection

Advanced protection Advanced protection schemes schemes

Possible use of sensors Possible use of sensors Auxiliary power requiredAuxiliary power required Delivery range:Delivery range: Short circuit and earth Short circuit and earth fault protectionfault protection Offers current and Offers current and

voltage measurementvoltage measurement with combisensorswith combisensors Others on requestOthers on request

Arc suppressorArc suppressor In the rare event of arc-faultIn the rare event of arc-fault 3 phase earthing switch3 phase earthing switch Reacts on pressureReacts on pressure No fatal pressure increaseNo fatal pressure increase No arcing gasesNo arcing gases No need for ventilationNo need for ventilation All parts inside the tankAll parts inside the tank

Superior solution for:Superior solution for: Crowded areasCrowded areas

Closed roomsClosed rooms Underground installationsUnderground installations

Mechanism and Mechanism and interlocksinterlocks

Rough and reliable mechanismsRough and reliable mechanisms Minimum of moving partsMinimum of moving parts High number of operationsHigh number of operations Latched snap action is availabeLatched snap action is availabe

Mechanical interlocksMechanical interlocks - internally, not on the front covers- internally, not on the front covers - fuse compartment- fuse compartment - cable compartment (option)- cable compartment (option) - cable test compartment (option)- cable test compartment (option) True position indicationTrue position indication

Padlocking devicePadlocking device

C mod.

F mod.

V mod.

Cable termination - Cable termination - bushingsbushings

Serie 600, bolted, 630A

Serie 200, bolted, 200A

Cable connectionCable connection All bushings - same All bushings - same

heightheight Simplified installation:Simplified installation:

Front dismantle Front dismantle Cable cut one lengthCable cut one length RevolvingRevolving Adjustable cable Adjustable cable

supportsupport Double adapters Double adapters

(e.g.NKT) and surge (e.g.NKT) and surge arresters fits behind arresters fits behind cable covercable cover

Double front covers Double front covers availableavailable

Arc proof cable Arc proof cable compartment availablecompartment available

Remote control and Remote control and monitoringmonitoring

Integrated solution with main components:

RTU211: 16DI, 8DO, 6AI, 24-110VDC

Additional I/O: 16DI (option)

Battery charger (110 or 220VAC/24VDC or

48VDC)

Batteries 2x12VDC (20Ah)

Communication devices

V23 fixed line modem

Dial up modem

RS-232 for external devices

Heater (optional)

Surge arresters (aux supply and communication interface)

Installation and Installation and maintenancemaintenance

Compact designCompact design Easy to install and connectEasy to install and connect Open front cable entryOpen front cable entry Commissioning - factory testedCommissioning - factory tested

Maintenance - on demand onlyMaintenance - on demand only NO live parts exposed NO live parts exposed Minimum number of partsMinimum number of parts Fully sealed and screened unitFully sealed and screened unit Virtually maintenance freeVirtually maintenance free At site conditions decidesAt site conditions decides

Production facilitiesProduction facilities

成套设施，一次完成成套设施，一次完成抽真空、氦气检漏、抽真空、氦气检漏、充充 SF6SF6 气体多种功能。气体多种功能。

成套设施，一次编成套设施，一次编程完气箱焊接功能。程完气箱焊接功能。

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