SF6-Gas Circuit Breakers & Disconnectors - Eservice
SF6-Gas Circuit Breakers & Disconnectors
SF6-Gas Circuit Breakers (GCB)Business EdgeBusiness EdgeThe Switchgear Works of Crompton Greaves is located on a 1,32,540sq.mtrs. plot in Nashik on the Mumbai Agra National Highway and isdemarcated in four main divisions: HV & EHV SF6 Gas Switchgear, HV &EHV Instrument Transformer, Medium Voltage Vacuum Switchgear andLightning Arresters. Operations commenced in 1980 with the manufactureof Medium Voltage Switchgear, which was relocated from Kanjur MumbaiWorks & extended to all range of MV, HV, EHV & UHV Products.A specialised Business Unit spearheads the export thrust for in-houseproducts as well as carefully out-sourced synergestic products for supplyto Trade, Industry, OEMs and Power Utilities.CG House, MumbaiOur regional establishments throughout India have factory-trainedpersonnel to provide prompt pre & after sales service, supporting ourmarketing & service personnel located at the factory.SF 6 Breaker 145 kVSF6 Breaker 245 kV
SF6-Gas Circuit Breakers (GCB)For Out-Door Use From (24 kV To 800 kV)IntroductionCrompton Greaves Ltd. is one of the leading manufacturers of SF6Gas Circuit Breakers in the world. We manufacture Gas CircuitBreakers ranging from 24kV to 800kV.More than 30,000 Crompton Greaves make SF6 Gas Circuit Breakersup to 420kV rating have been put into service in various environmentsin many countries since 1983 where they are operating satisfactorily.Crompton Greaves has developed 800kV GCB with SpringPneumatic Mechanism indigenously with its own R&D efforts. Therating of the GCB is 800kV, 3150A, 50kA.Crompton Greaves has also developed breakers for -40 Degapplication & 60Hz frequency requirement.improvement in the CTQs with substantial reduction in defects.All the SF6 Gas Circuit Breakers are type tested as per the IEC 62271100 requirements in various world known testing Laboratories likeCESI Italy, KEMA Netherlands, KERI South Korea & CPRI India.Depending upon the application, type SFM GCBs are divided intotwo types as follows;A)Three phase auto re-closing circuit breaker with one commonmechanism for Transformer applications.B)Single / Three phase auto re-closing circuit breaker with threeseparate spring mechanisms (for each phase) for Lineapplications.Our Manufacturing units systems are certified with ISO 9001, ISO14001 for environment control & OHSAS 18001.Also these breakers are categorised as per the drive mechanismused for its operation.At Crompton Greaves there is always a passion for quality. A qualitytrust mark has emerged as Crompton’s biggest brand ambassador.In fact, this is reflected through quality certifications for its productsand services. Further the commitment to responsible businessthrough quality, technology and productivity.The breaker consists of three main parts for its Spring - SpringMechanism type:The company has made considerable progress towards integrationof the Six Sigma methodology in its manufacturing processes withthe ultimate aim of achieving ‘Product Quality as Perceived ByConsumer’. This methodology was actively pursued for products forwhich Critical to Quality (CTQ) characteristics were identified basedon market feedback. Regional team has also been trained in SixSigma technology for capture of customer’s voice.In addition to this, the company has also introduced stringent controlmeasures with suppliers to ensure that inputs support the Six Sigmaquality. In fact, all these measures have resulted in manifoldSF 6 Breaker 72.5 kV1.Vertical porcelain units containing puffer type interrupter2.Spring-spring operating mechanism and control equipment ina single housing3.Base Frame and support columnsThe breaker consists of three main parts for its Spring - PneumaticMechanism type:1.Vertical / Horizontal porcelain units containing puffer typeinterrupter2.Spring-Pneumatic operating mechanism and control equipmentin a single housing3.Support structure.SF 6 Breaker 36 kV
SF6-Gas Circuit Breakers (GCB)For Out-Door Use From (24 kV To 800 kV)The SF6 GCB Product Features:I Easy & convenient in installation, fault-detection and operation.I Proven performance under extreme conditions such as in areaswith seismic activity.I In compliance with the new IEC-62271-100 and ANSI standards.I Insulation with enhanced creepage distance allows forinstallation in highly polluted areas without changes indimensions.I Highly reliable on account of simple design & proven technology.I Robust construction with easy-to-access mechanismsI Type tested at recognised international laboratories- CESI Italy,KERI Korea, KEMA Netherlands.I All range of Circuit Breakers is certified to achieve C2 & M2class as per IEC 62271-100.I Leader in domestic market.I Widely exported to Italy, USA, Brazil, Chile, South Africa andother countries.CGL is the only manufacturer in India for supply of 420kV SF6 CircuitBreakers to meet the high altitude requirement of 1600m.The SF6 Gas Circuit Breaker (GCB) Products range is as follow:1)Medium Voltage Gas Circuit Breaker (MV GCB)a) 36kV outdoor type upto 3150A , 40kAb) 36kV Indoor type upto 2000A, 40kA.2)High Voltage Gas Circuit Breaker (HV GCB)a) 72.5kV outdoor type upto 3150A, 40kAb) 145kV outdoor type upto 3150A, 40kAc) 170kV outdoor type upto 3150A, 40kA3)Extra High Voltage Gas Circuit Breaker (EHV GCB)a) 245kV Outdoor Type upto 3150A, 40kAb) 420kV Outdoor type upto 3150A, 50kA.4)Ultra High Voltage Gas Circuit Breaker (UHV GCB)a) 800kV Outdoor type upto 3150A, 50kA.SF6 Breaker 800 kV
SF6-Gas Circuit Breakers (GCB)Interrupting PrincipleAbsorbentUpper terminalContact supportSF6 gasFixed arcing contactFixed main contactInterrupter porcelainNozzleMoving main contactMoving arcing contactPistonPuffer cylinderDrive tubeLower terminalContactFIG. 1 : Closed positionFIG. 2 : Open positionKeyFixed main contactLive parts (moving parts)Fixed arcing contactArcLive parts (fixed parts)InsulatorsSF6 gasNozzleMoving arcing contactMoving main contactPuffer cylinderContactPistonFIG. 3 : Interrupting principleINTERRUPTERInterrupting Unit of SF6 Gas Circuit Breaker WorkingPrinciple:The interrupting unit filled with pressurized SF 6 gas is placed atthe top of the pole and contains Stationary Contact, Nozzle,Moving Contact, Puffer Cylinder and Fixed Piston (Fig.1). Duringopening operation (Fig.2), the Moving Contact along with thePuffer Cylinder is pulled down. The Fixed and Moving contactsget separated and arc is formed between fixed arcing contactand moving arcing contact. Motion of the Puffer Cylindercompresses SF 6 gas against the Fixed Piston thus generating apowerful SF 6 gas blast through the Nozzle over the arc. Aftertravelling through some distance, the dielectric strength of thegap is raised sufficiently to extinguish the arc. The reliability ofthe system is further enhanced by the single pressure dual flowpuffer interrupter, which reduces the number of moving parts andauxilliary systems in the circuit breaker. This principle is shownin Fig. 3.
SF6-Gas Circuit Breakers (GCB)For Out-Door Use (24 kV To 245 kV)Spring - Spring Operating MechanismCamTrip springRatchetClosing springLeverRatchet wheelThe spring-spring mechanism consists of two springs –Closing spring and Tripping spring. Closing spring is chargedthrough a motor driven cam, pawl and ratchet mechanism.Fig.4 shows the Breaker in Closed position (Closing springcharged)Closing-holdinglatchClosing triggerTrip-holdinglatchClosing coilInterrupterTrip coilTrip triggerFIG. 4 : Closed position (closing spring charged)Both closing spring and tripping spring are in charged position.The Tripping spring exerts counter clockwise torque on the lever. Atthis stage a locking device called ‘Trip Holding Latch’ avoids levermovement. When the trip coil is energized, the lever is released fromlocking device and rotates to attain the ‘Open’ position.Fig.5 shows the Breaker in Open positionFIG. 5 : Open position (closing spring charged)Tripping spring is in the relaxed condition. Closing spring exertscounter clockwise torque on the Cam and Ratchet wheel. When theClosing coil is energized, the Cam rotates in counter clockwisedirection and in turn, the Lever is rotated clockwise. This levermotion closes the breaker and charges the Tripping spring at thesame time.Fig.6 shows Closed position ( Closing spring discharged )FIG. 6 : Closed position (closing spring discharged)Immediately after the breaker is closed, the spring charging motor gets activated. The closing spring is charged by the ratchet, linked to themotor. When the closing spring is fully charged the Limit Switch disconnects the supply to the motor and the closing-holding latch holds thecompressed spring energy till next discharge.
SF6-Gas Circuit Breakers (GCB)PHASE APHASE BVALVE E [406]VALVE E [406]For Out-Door Use (24 kV To 245 kV)PHASE CVALVE E [406]VALVE D [405]O RING P18[408]TEMPERATURECOMPENSATED GAS PRESSUREGAUGE [402]GAS PRESSURESWITCH [401]GAS FEED PORT [403]COVER [404]ADAPTER V [713]LARGE DIA HOSE [714]Spring Mechanism 145kV - Closing SpringVACUUM PUMP[712]Fig 7. Gas SystemSpring Mechanism 145kV - Opening Spring (Rear View)Gas System (Refer Fig. 7)The gas within the pole units is connected through pipes to form agas system which is monitored by a Gas Pressure Gauge (402) anda Temperature-compensated Gas Pressure Switch (401) located inthe mechanism housing. The gas system also provides a Gas ValveE (406) for shutting of the gauge (402) and switch (401) from thebreaker as to permit their inspection and maintenance Gas Valve D(405) also located in the mechanism housing is provided for gasfilling or evacuation of the breaker during installation or maintenance.
Spring-Pneumatic Operated SF6 GCBFor Out-door Use (245 kV - 800 kV)Pneumatic Operating Mechanismthe three poles are pulled down together. The movement of theopening piston compresses the closing spring. At the final positionof the opening operation, the control valve is closed by the linkageand the air in the cylinder is exhausted through the control valveto the outside atmosphere. The piston is held in opening positionagainst force of the closing spring by holding latch.The movement of operating mechanism is illustrated in Fig. 8. Thepneumatic operating mechanism consist of opening piston air cylindercontrol valve tripping coil & closing coil, latch trigger closing spring,shock absorber and others.1) Opening Operation :The opening operation is affected by compressed air. Whenopening signal energizes trip coil, latch and cam are releasedby trip coil plunger and control valve is opened by spring whichallows the compressed air to push down the piston of thepneumatic operating mechanism.The movement of the opening piston is transmitted to the puffercylinder through levers and rods and the moving contact of all2) Closing Operation :In the open position the mechanism corresponds to latchedposition. Closing operation is made by the closing spring, Whenclosing signal energizes the closing coil trigger and holding latchare released by the closing coil plunger and the closing springcloses the breaker.Operating Mechanism (Spring Pneumatic)STATIONARYCONTACTMOVINGCONTACTPIN "A"STATIONARYCONTACTCAMMOVING SPRING ACLOSING COILTRIP RICALVALVEAIR OSINGSPRINGSHOCK ABSORBERCLOSED POSITIONPISTONCYLINDERVALVE SEATOPENING STAGEFIG. 8 : PNEUMATIC OPERATING MECHANISMCOMPRESSEDAIRHOLDING LATCHAIR RESERVOIRPISTON RODSHOCKABSORBEROPEN POSITION
Spring-pneumatic Operated SF6 GCBFor Out-door Use (245 kV - 800 kV)Air And Gas SystemAir System (Refer Fig.9)Gas System (Refer Fig. 9)I The operating mechanism is connected to control valve, airreservoir, air pressure gauge, air pressure switches, airing nozzle& airing stop plug by air piping.I Air reservoir is connected to compressed air supply unitthrough check (NRV) valve.I Safety valve is connected to air reservoir with drain valve.I Compressed air generated by compressed air supply unitis led to air reservoir & control valve through check valve.I Check valve prevents compressed air inside air reservoirfrom returning to compressed air supply unit.I Moisture inside air reservoir is periodically drained throughthe preset timer actuated automatic drain valve (optional).I Three interrupting units connected by gas piping have gasvalves A, B and C individually.I Gas piping is connected to gas pressure gauge, temperaturecompensated gas pressure switch and gas feed port.I Gas valves A, B and C should be normally open.I Gas valves D should be normally closed.I Density of SF 6 Gas is monitored by gas temperaturecompensated pressure switch.I Filling of SF6 gas is possible from gas feed port by openinggas valve D even in energized condition.GAS FEEDPORTVALVE ASF6 GASGAS PIPINGVALVE BVALVE CINTERRUPTING UNITVALVE DAIR PRESSURE GAUGEAIR PRESSURE SWITCH(FOR ALARM & LOCKOUT)GAS PRESSUREGAUGETEMPERATURECOMPENSATEDGAS PRESSURESWITCH63G63AL 63AGAIR PRESSURE SWITCH(FOR COMPRESSOR GOVERNOR)AIRING NOZZLEOPERATINGMECHANISMHOUSINGAIRING STOP PLUGAIRRESERVOIRAIR PIPINGCONTROL VALVEOPERATINGMECHANISMCOMPRESSEDAIRDRAIN VALVESAFETY VALVECHECK VALVE (NRV)Fig. 9 Air & Gas System
SF6-Gas Circuit Breakers (GCB)QualityQuality of the final products are ensured right at the Componentmanufacturing stage, Through,I Six sigma methodology for improving product quality as perceivedby customerI Model Cell Concept (factory within factory)I World class test setupI Structured Policy for supplier qualityI PD Measurement up to 100kVI High precision mass Spectometer Type Gas Leak Detector (withcapability todetect leaks as low as 1 ppm).I Multi-Channel Breaker Speed / Time Analysers.I Mechanical Endurance ControlerI Contact Resistance Meter (Static)I Dynamic Contact Resistance (Signature)I Primary Injection Test Set.Routine TestingFull testing before despatch of breaker ensures trouble free operation atsite and complete customer satisfactionAll routine tests as specified in IEC, are conducted on the fully assembledGCBs at our factory. In addition to the specified tests as per IEC, thefollowing tests are also carried out on each breaker.Fabrication & Surface TreatmentFor all Spring Spring & Spring Pneumatic Breakers.I MECHANICAL OPERATION TESTSI ELECTRICAL SEQUENCE TEST (CONTROL & AUXILIARYCIRCUIT CHECK)I MEASUREMENT OF SPEED & TIME (NO LOAD OPERATINGCHARACTERISTICS)I DCRM TEST as per Customer requirement.I MILLI VOLT DROP TEST (CONTACT RESISTANCEMEASUREMENT)I HIGH VOLTAGE TEST ON MAIN CIRCUITI HIGH VOLTAGE TEST ON CONTROL & AUXILIARY CIRCUITI GAS LEAKAGE TESTSI GAS DENSITY SWITCH OPERATION TESTSI MEASUREMENT OF TRIPPING & CLOSING COIL RESISTANCEIn addition to all above tests following tests are performed on SpringPneumatic Breakers.I REPLENISHING TIME MEASUREMENT FOR COMPRESSED AIRI AIR PRESSURE SWITCHES OPERATIONI SAFETY VALVE OPERATIONI AIR LEAKAGE TESTCGL testing laboratory is fully equipped with the latest testingequipment viz:I 700 kV Test TransformerAll critical components & sheet metal stampings are manufactured onCNC machines ensuring high dimensional consistency. All parts comingin contact with moisture are zinc plated and passivated. All exposed ferrousparts are treated to give high corrosion resistance. They are shot blasted,zinc sprayed, epoxy primer coated and finally painted with polyurethanealiphatic based paint ensuring excellent finish & corrosion protection. Alljoints are secured against loosening by using torque wrenches & othersuitable means. All exposed hardware are of Stainless Steel or Hot DipGalvanised for outdoor GCBs.Transport & Site InstallationAll the Circuit Breakers are factory tested and then depending on thetype involved are partly dismantled into packing units which aredispatched. All the sub-assemblies are individually wrapped to reducethe harmful effects of atmosphere. For Exports, the breakers aredispatched with Sea Worthy Packing. The Circuit Breaker Poles are filledwith a small quantity of SF6 Gas for Transportation (at a guage pressureof 0.5 kg/cm²) to avoid moisture ingress and evacuation at site. Siteinstallation is simple and no site adjustments are required during Erectionand Comissioning, all main adjustments / settings are done in the factoryprior to delivery.Customer Support & After Sales ServiceWe provide solutions to all possible Technical requirements to Customerthrough our highly qualified Engineers having rich experience in the field.Our Service Engineers, Technicians and Authorised Representatives canprovide services supervision of Erection and Comissioning and After SalesService at site.
24 kV - 72.5 kV SF6 Gas CircuitBreaker [Spring - Spring Mechanism]SF6-Gas Circuit Breakers (GCB)Guaranteed Technical Particulars24kV - 72.5kV SF6 Gas Circuit Breaker [Spring - Spring Mechanism]SNDESCRIPTION1. TYPE REFERENCE:UNITS(3 PHASE AUTO RE-CLOSING)20-SFGP-25A 30-SFGP-25A 30-SFGP-40A 70-SFM-32B(1 PHASE AUTO RE-CLOSING)70-SFM-40AA 70-SFM-32B 50-SFGP-20A* 30-SFGP-25A*25KV GCB25KV INT.72.572.5(52KV CLASS) (52KV CLASS)2. RATED VOLTAGE:kV24363672.53. RATED LIGHTNING IMPULSEWITHSTAND:kVp1502002003503503502502504. RATED POWER FREQUENCYWITHSTAND:kV60808016016016095955. CREEPAGE DISTANCE [TOTAL]:mm600900900181518151815130013006. APPLICABLE STANDARDS:-7. TYPE OF MECHANISM:-8. RATED NORMAL CURRENT:A9. RATED OPERATING SEQUENCE:-10. RATED FREQUENCY:Hz11. RATED DURATION OF SHORTCIRCUIT:sec.IEC-62271-100 / IS 13118SPRING-SPRING1250 / 1600 / 2000315031501600800O - 0.3sec - CO - 3min - CO/CO - 15sec - CO50 / 6050 / 6050312. RATED CLOSING/TRIPPING VOLTAGE : V DC13. CURRENT OF CLOSING/TRIPPING:COILIEC 62271-100 / RDSO Spec.110/125/220A1106A MAX. AT 110 V DC14. RATED BREAK TIME: / 250/ 2.5125/ 2.5250/ 2.5——400/ 2.5600/ 2.5400/ 2.5600 / 2.5440 / 2.5440 / 2.5107.9107.9——1.5—15. RATED CLOSING TIME: / mS16. RATED SHORT CIRCUITBREAKING CURRENT:kA17. RATED SHORT CIRCUIT MAKINGCURRENT:kAp252562.519. RATED CABLE CHARGING BREAKING: A / puCURRENT AND OVER VOLTAGE50 / 2.520. RATED SINGLE CAPACITOR BANK: A / puBREAKING CURRENT & OVER VOLTAGE21. RATED OUT OF PHASE BREAKING:CURRENTkA22. FIRST POLE TO CLEAR FACTOR:-23. AUXILIARY CONTACTS:-400/ 2.56.256.251.55 NO 5 NC8 NO 8 NC65801008 NO 8 NC—6 NO 6 NC24. SF6 GAS PRESSURE [ AT 20deg C]- NORMAL: Kg/cm²56565- GAS FEED ALARM: Kg/cm²4.55.54.55.54.5- LOCKOUT: Kg/cm²4545425. 574399845794249:Kg6757807501100820210050050026. WEIGHT [ APPROX ]* For Railway application, **AdjustableStandard Altitude 1000mOptionalsSNDESCRIPTION1. CREEPAGE DISTANCEUNITS(3 PHASE AUTO RE-CLOSING)31(1 PHASE AUTO RE-CLOSING)——V DC48 / 60 /110/125/220——3. CLEARANCE OF LIVE PARTS TOGROUND-AS PER CUSTOMER SPECIFICATIONS——4. MAX. ALTITUDE ABOVE SEA LEVELm2200——5. AUXILIARY CONTACTS-10 NO 10 NC——6. SEISMIC ACCELERATIONg0.3 / 0.4——2. CLOSING / TRIPPING COIL VOLTAGEmm / kV
110 kV - 245 kV SF6 Gas CircuitBreaker [Spring - Spring Mechanism]SF6-Gas Circuit Breakers (GCB)Guaranteed Technical Particulars110kV - 245kV SF6 Gas Circuit Breaker [Spring - Spring Mechanism]SNDESCRIPTIONUNITS(3 PHASE AUTO RE-CLOSING)(1 PHASE AUTO RE-CLOSING)120-SFM-32B 120-SFM-32B 120-SFM-32B 150-SFM-40B 120-SFM-32B 120-SFM-32B 120-SFM-32B 150-SFM-40B 200-SFM-40S1. TYPE REFERENCE:-2. RATED VOLTAGE:kV1231451451701231451451702453. RATED LIGHTNING 53625362542506125:-50/605050/601301351504. RATED POWER FREQUENCYWITHSTAND5. CREEPAGE DISTANCE [TOTAL]6. APPLICABLE STANDARDS7. TYPE OF MECHANISM:-8. RATED NORMAL CURRENT:A9. RATED OPERATING SEQUENCE:-10. RATED FREQUENCY:Hz11. RATED DURATION OF SHORTCIRCUIT:sec.IEC-62271-100 / IS 13118SPRING-SPRING3150O - 0.3sec - CO - 3min - CO/CO - 15sec - CO50 / 6050312. RATED CLOSING/ TRIPPING VOLTAGE : V DC13. CURRENT OF CLOSING/TRIPPING:COIL110/125/220A6A MAX. AT 110 V DC14. RATED BREAK TIME:mS15. RATED CLOSING TIME:mS1301356016. RATED SHORT CIRCUITBREAKING CURRENT:kA31.54031.54017. RATED SHORT CIRCUIT MAKINGCURRENT:kAp801008010018. RATED LINE CHARGING BREAKING: A / puCURRENT AND OVER VOLTAGE19. RATED CABLE CHARGING BREAKING:CURRENT AND OVER VOLTAGEA / pu50/ 2.5160/400/ 2.5160/ 2.520. RATED SINGLE CAPACITOR BANKBREAKING CURRENT AND OVER : A / puVOLTAGE21. RATED OUT OF PHASE BREAKING:CURRENT50/ 2.5160/400/ 2.5160/ 2.5400/ 2.5kA125/ 2.5250/ 2.5400/ 2.57.9107.91022. FIRST POLE TO CLEAR FACTOR:-1.51.51.323. AUXILLIARY CONTACTS:-8 NO 8 NC8 NO 8 NC24. SF6 GAS PRESSURE [ AT 20deg C]- NORMAL: Kg/cm²6767- GAS FEED ALARM: Kg/cm²5.56.55.56.5- LOCKOUT: Kg/cm²565625. 2002360246025503300377526. WEIGHT [ APPROX ]4500****AdjustableStandard Altitude 1000mOptionalsSN DESCRIPTION1. CREEPAGE DISTANCEUNITS(3 PHASE AUTO RE-CLOSING)(1 PHASE AUTO RE-CLOSING)mm / kV312. CLOSING / TRIPPING COIL VOLTAGE V DC3. CLEARANCE OF LIVE PARTS TOGROUND-4. MAX. ALTITUDE ABOVE SEA LEVELm5. AUXILLIARY CONTACTS6. SEISMIC ACCELERATIONg110/125/220AS PER CUSTOMER SPECIFICATIONS1600–10 NO 10 NC0.3 / 0.41600–2000
245 kV - 800 kV SF6 Gas CircuitBreaker [Spring - Pneumatic Mechanism]SF6-Gas Circuit Breakers (GCB)Guaranteed Technical Particulars245kV - 800kV SF6 Gas Circuit Breaker [ Spring - Pneumatic Mechanism ]SNUNITS(3 PHASE AUTO RE-CLOSING)1. TYPE M-40A800-SFM-50A2. RATED VOLTAGE:kV2452454208003. RATED LIGHTNING IMPULSEWITHSTAND:kVp10501050142521004. RATED POWER FREQUENCYWITHSTAND:kV460460520/610870/9605. CREEPAGE DISTANCE [TOTAL]:mm6125612510500200006. APPLICABLE STANDARDS:-7. TYPE OF MECHANISM:-8. RATED NORMAL CURRENT:A9. RATED OPERATING SEQUENCE:-10. RATED FREQUENCY:Hz11. RATED DURATION OF SHORTCIRCUIT:sec.IEC-62271-100 / IS 13118Spring-Pneumatic3150O - 0.3sec - CO - 3min - CO/CO - 15sec - CO50 / 6050312. RATED CLOSING/TRIPPING VOLTAGE : V DC13. CURRENT OF CLOSING/TRIPPING:COIL(1 PHASE AUTO RE-CLOSING)110/125/220A2206A MAX. AT 110VDC14. RATED BREAK TIME:mS15. RATED CLOSING TIME:mS16. RATED SHORT CIRCUITBREAKING CURRENT:kA17. RATED SHORT CIRCUIT MAKING:kAp10018. RATED LINE CHARGING BREAKING :A/pu125/ 2.5400/ 2.5900/ 2.519. RATED CABLE CHARGING BREAKING: A / puCURRENT AND OVER VOLTAGE250/ 2.5400/ 2.5—20. RATED SINGLE CAPACITOR BANK: A / puBREAKING CURRENT & OVER VOLTAGE21. RATED OUT OF PHASE BREAKING:CURRENT60401401001504050125400/ 2.5kA400/ 2.5—1012.522. FIRST POLE TO CLEAR FACTOR:-1.323. AUXILIARY CONTACTS:-8 NO 8 NC24. SF6 GAS PRESSURE [ AT 20deg C] :- NORMAL: Kg/cm²6677- GAS FEED ALARM: Kg/cm²5.55.56.56.5: Kg/cm²556626004500**7000**10000**- LOCKOUT25. DIMENSIONSA:mmB:mm4605460568448970H (WITHOUT CLOSING RESISTOR):mm7224696570749184H (WITH CLOSING RESISTOR):mm——7604971426. WEIGHT [ APPROX ]WITHOUT CLOSING RESISTOR:kg.24003900695018900WITH CLOSING RESISTOR:kg.——860022200Standard Altitude 1000m**AdjustableOptionalsSNDESCRIPTION1. CREEPAGE DISTANCEUNITS(3 PHASE AUTO RE-CLOSING)mm / kV(1 PHASE AUTO RE-CLOSING)312. CLOSING / TRIPPING COIL VOLTAGE V DC110/125/2203. CLEARANCE OF LIVE PARTS TOGROUND-4. MAX. ALTITUDE ABOVE SEA LEVELm5. AUXILIARY CONTACTS-10 NO 10 NC6. SEISMIC ACCELERATIONg0.3 / 0.4AS PER CUSTOMER SPECIFICATIONS—1600—
For Out-Door Use(24 kV to 245 kV Spring - Spring GCB]SF6-Gas Circuit Breakers (GCB)Dimensional Details25kV INT/GCB Single Phase Auto Reclosing BreakerFoundation Plan DetailsUpper TerminalInterrupting UnitLower TerminalFoundation Bolt LocationSupport Porcelain20050650BHousing7251350Mounting StructureConcrete LevelGround Level65072524/36kV Three Phase Auto Reclosing BreakerA1350H80Horizontal FrameFoundation Plan DetailsAInterrupting UnitSupport Porcelain50H80450900Horizontal FrameBHousing480Mounting StructureConcrete LevelGround Level72.5kV Three Phase Auto Reclosing BreakerAFoundation Plan DetailsAInterruptingPorcelain5080BHHorizontal Frame450900SupportPorcelainMechanism Housing480Support StructureConcrete LevelGround Level480110/145kV Three Phase Auto Reclosing BreakerAFoundation Plan DetailsUpper Terml. PadALowerTerml. PadInterrupter PorcelainSuggested Trench ForFor Cable EntrySupport Porcelain16673780B280 705Mechanism HousingTripping PlungerSupport Column80240H200Mounting Frame10152000Concrete LevelGround Level250
For Out-Door Use(24 kV to 245 kV Spring - Spring GCB]SF6-Gas Circuit Breakers (GCB)Dimensional Details110kV / 145kV Single Phase Auto Reclosing BreakerUpper Terml. PadAAFoundation Plan DetailsLowerTerml. PadAA10851085H1085CementBCable TrenchConcrete LevelGround Level108510851085170kV Three Phase Auto Reclosing BreakerAFoundation Plan DetailsAUpper Terml. PadInterrupter PorcelainLowerTerml. PadSupport Porcelain280280BMounting FrameMechanism HousingA240H1000280A52001967Tripping Plunger4938Support ColumnConcrete LevelGround Level170kV Single Phase Auto Reclosing BreakerUpperTerminalALowerTerminal520 25050H540 802505901000180250B E'AA6000520520520 E'Concrete LevelGround Level540245kV Single Phase Auto Reclosing BReakerFoundation Plan DetailsUpperTerminalAA1200AFoundation Plan DetailsInterruptingPorcelain540 1000250BOperatingMechanismHousing520540 HSupporting.Porcelains520 520 1200LowerTerminalA520520540Concrete LevelGround LevelA
245 kV - 800 kV SF6 Gas CircuitBreaker [Spring - Pneumatic Mechanism]SF6-Gas Circuit Breakers (GCB)Dimensional Details245kV Three Phase Auto Reclosing 00AFoundation Plan DetailsAAC. L.G. L.Side View245kV Single Phase Auto Reclosing BreakerUpper Terminal PadAPHASE B'PHASE Y'Ø410LowerTerminal Pad80Air Reservoir(70 Ltr)540250525A786420kV Single Phase Auto Reclosing BreakerPlinth LevelGround LevelControl CablesStructure LevelP.L.GlControl CablesAir Piping Ø22P.L.Gl200850TrenchFor Cable Entry1000A850 ng UnitMarshalling Box5000400 820 GradingCapacitor650 1000A5955TerminalPad600 Flexible CableConnector24782353Reisitor UnitFoundation Plan Details1600850850Support Structure100AA850 Side View800kV Single Phase Auto Reclosing ctureLevel850850SupportInsulatorHBAir ReservoirOperatingMech. Drg.TerminalPadInterruptingUnitSupport gMechanism HousingFoundation Plan DetailsClosingTerminal Resistor UnitPadAAAConcreteLevelGroundLevel540520Control Cable5205201000850325BOperatingMechanism740 700180 1504001651075 HSupportingPorcelains1000520 200APHASE R'InterruptingPorcelainFoundation Plan Details
Outdoor Off Load Disconnectors12 kV - 420 kV HCB/HDBHorizontal Centre Break Disconnectors Type - HCBaRCbFIG. 1cTable - IOverall 20022341600245260028732000420410042233100** R&D being continuous process, dimensions may change as per finaldesign.Horizontal Centre Break Disconnectors Type - HCBTable - IIIRated Rated Rated short Rated peakVoltage Current Time currentShortCircuitcurrent*kVAkAkAp1250/72.5 1600/4010020001250/123 1600/4010020001250/145 1600/401002000/1250/170 1600/4010020001250/245 1600/ 40/50100/1252000300 4000 40/50100/1252000/42040/50100/1252500* higher current optional.Power FrequencyWithstand Voltager.m.s 1min.Lighting impulseWithstand Voltage1.2/50mSSwitching impulseWithstand Voltage250/2500mSTo earth across isolating To earth across isolating To across 351050 1050( 170) 8505206101425 1425( 240) 1050 900( 345)700( 245)** R&D being continuous process, dimensions may change as per final design.
Outdoor Off Load Disconnectors12 kV - 420 kV HCB/HDBHorizontal Double Break Disconnectors Type - HDBb122aFIG. 2cTable - IIOverall 60022002600b2547309921553183320332658c5206501000 1450 1450 1600 2100** R&D being continuous process, dimensions may change as per finaldesign.Horizontal Double Break Disconnectors Type - HDBTable - IVRated Rated Rated short Rated peakVoltage Current Time currentShortCircuit current*kVAkA400/1213.1/25800800/1250/36/38.5 1600/252000800/1250/72.5 1600/ 31.5/402000800/1250/123 1600/402000800/1250/145 1600/4020001250/170 1600/402000245 2000/40/502500300 400040/50420 2000/40/502500* higher current optional.kApPower FrequencyWithstand Voltager.m.s 1min.Lighting impulseWithstand Voltage1.2/50mSSwitching impulseWithstand Voltage250/2500mSTo earth across isolating To earth across isolating To earth across �—100/12538043510501050( 170)850700( 245)100/12552061014251425( 240)1050900( 345)
Switchgear PoemOur Major Customers :There occurs a faultThen the current should haltOtherwise the fault current will increase& the service continuity decreaseBut the relay acts quick& the CIRCUIT BREAKER tripsThe faulty part is disconnected& the power system is protectedThank you Mr. SWITCHGEARBecause of you there is little fear !!International Customers :ENDESA - Spain; ENEL, TERNA - Italy; KEPCO - Korea; TNB - Malaysia; TPC - Taiwan; CEB - Sri Lanka; NPPMB, CPPMB, SPPMB, HCMCPC,PC1, PC2, PC3, PTC4 - Vietnam; PGCB, REB, DESA, BPDB Bangladesh; NPC Transco - Philippines; TXU, ERGON, AGL,POWERCOR, ETSA, TRANSGRID, INTEGRAL, ENERGEX - Australia;ZESA - Zimbabwe; NEPA - Nigeria; PEDEEE, PEEGT - Syria; KWPA,HREC, KHREC - Iran; EPE - Argentina; PT PLN - Indonesia; PEA, EGAT- Thailand; ESKOM, SPOORNET - South Africa; VRA, ECG - Ghana;KPLC - Kenya; AMPLA, COELCE, ELECNOR, COPEL, ELETROSUL,RGE - Brazil; EDELNOR, ELECTRO
CGL is the only manufacturer in India for supply of 420kV SF 6 Circuit Breakers to meet the high altitude requirement of 1600m. The SF 6 Gas Circuit Breaker (GCB) Products range is as follow: 1) Medium Voltage Gas Circuit Breaker (MV GCB) a) 36kV outdoor type upto 3150A , 40kA b) 36kV Indoor type upto 2000A, 40kA. 2) High Voltage Gas Circuit .
molded-case circuit breakers (MCCB), insulated-case circuit breakers (ICCB) and low voltage power circuit breakers LVPCB). Insulated-case circuit breakers are designed to meet the standards for molded-case circuit breakers. Low voltage power circuit breakers comply with the following standards: ANSI Std. C37.16—Preferred Ratings
concept, the SFset circuit breaker with integrated protection functions. SF6 switchgear is thus capable of meeting the most demanding requirements of public and industrial distribution networks world-wide, up to 40.5 kV. 0SF circuit breakers, 1 to 40.5 kV SF6 gas
Air Circuit Breakers Fixed Version for Power Distribution Emax 2 Icu 100kA - 200kA 4.14 . Air Circuit Breakers Accessories 4.16. 4 1SWC 010 000 C 0314 7 Circuit Breakers: 2 ABB SA LV Products Prices exclude VAT, subject to change without notice E & O.E. Terms & Conditions Apply Moulded Case Circuit Breakers
Circuit Breakers A reliable, ef cient and high performance range of SF6 circuit breakers up to 36kV, 1250A and 25kA for MV panel builders to use to build medium voltage switching and protection cubicles, compliant to international standards, with many available options and accessories. Load Break Switches Disconnectors Circuit Breakers inside or
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www.schneider-electric.us 1 . QO Miniature Circuit Breakers QO Plug-On Circuit Breakers Class 685, 690, 730, 912, 950 / Refer to Catalog: 0730CT9801 QO Arc-Fault Circuit Breaker QO arc-fault circuit breakers provide protection for Series and Parallel Type Arcing as required by the NEC and local code adoption, and comply with UL1699. .
The SF6 Gas Circuit Breaker (GCB) Products range is as follow: 1) Medium Voltage Gas Circuit Breaker (MV GCB) a) 36kV outdoor type upto 3150A, 40kA. b) 36kV Indoor type upto 2000A, 40kA. 2) High Voltage Gas Circuit Breaker (HV GCB) a) 72.5kV outdoor type upto 3150A, 40kA. b) 145kV outdoor type upto 3150A, 40kA.
pihak di bawah koordinasi Kementerian Pendidikan dan Kebudayaan, dan dipergunakan dalam tahap awal penerapan Kurikulum 2013. Buku ini merupakan “dokumen hidup” yang senantiasa diperbaiki, diperbaharui, dan dimutakhirkan sesuai dengan dinamika kebutuhan dan perubahan zaman. Masukan dari berbagai kalangan diharapkan dapat meningkatkan kualitas buku ini. Kontributor Naskah : Suyono . Penelaah .
