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| 1 | Servicing and Overhauling of 33KV, 630A, 25kA, CGL make, Outdoor, Type 36PV25A, Vacuum Circuit Breaker from Manufacturers Service Technician /Authorized Service Provider. The detailed Scope work is as under: Visual inspection and cleaning, Lubrication of mechanism moving parts, Checking the Operation of Closing and Tripping coil, Checking tripping mechanism operation, Checking Breaker Aux. switch operation, Checking spring charging limit switch operation , checking of damper setting, Measurement of stroke gaps for contacts and adjustment if required, Tightness checking of power connectio n/electrical wiring in breakers, Checking and tightening of nuts/bolts and other fasteners, Checking of all circlips and lock washers, Checking of Breaker ON/Off operation, Measurement of Contact Resistance , HV test, closing & tripping timing, Cleaning of Jaw Contactsetc. Complete as directed by Engineer-in-Charge. |
| 2 | Supply and Replacement of Closing Coil Assembly, 30V DC for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 3 | Supply and Replacement of Tripping Coil Assembly, 30V DC for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 4 | Supply and Replacement of Auxiliary Switch ( 7NO + 7NC) for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 5 | Supply and Replacement of Motor Cut -off Switch (Cherry) for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 6 | Supply and Replacement of Trip Catch with all linkage Assembly for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 7 | Supply and Replacement of Tripping Shaft with Spring & Trip Strips for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 8 | Supply and Replacement of Closing Shaft with Spring & Close strips for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 9 | Supply and Replacement of Closing Spring Assembly for 33KV, 630A, 25kA, CGL make ,Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 10 | Supply and Replacement of Tripping Spring Assembly for 33KV, 630A, 25kA, CGL make, Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 11 | Supply and Replacement of Holding Catch Assembly for 33KV, 630A, 25kA, CGL make, Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 12 | Supply and Replacement of Spring Charging Motor for 33KV , 630A, 25kA, CGL make , Type 36PV25A Vacuum Circuit Breaker at Verna Pumping Station. |
| 13 | Supply, Installation, Testing and Commissioning of Outdoor, Oil cooled, Single Phase, Wound primary type, Hermetically Sealed, Three Core, Live tank type, Hot Dip Galvanized Current Transformer with Porcelain Insulators having creepage distance of 25 mm /kV i.e. 900 mm (min), make Mehru/Pragati. The detailed specifications are as under:Highest System Voltage : 36KV, Rated S.T.C. 25kA for 1 Sec., Nominal System Voltage: 33KV effectively earthed system, Frequency: 50Hz, BIL: 36/70/170kV, Ration : 100-200-400/1-1-1 Amps, Core 1:Secondary terminals: 1S1-1S2-1S3-1S4, Burden :40VA, Accuracy class: 5P,ALF/ISF: 20. Core 2:Secondary terminals: 1S1-1S2-1S3-1S4, Burden:40VA, Accuracy class: 0.5,ALF/ISF: <5. Core 3:Secondary terminals: 1S1-1S2-1S3-1S4, Burden : ----, Accuracy class: PS, ALF/ISF: -- . |
| 14 | Supply, Installation, Testing and Commissioning of Outdoor, Oil Cooled, Single Phase, Single Pole Insulated, Hermetically Sealed, Hot Dip Galvanized, Electromagnetic type Potential Transformer with Porcelain Insulators having a creepage distance of 25 mm/kV i.e. 900 mm (Min) , make Mehru/Pragati. The detailed specifications are as under : Highest system Voltage:36KV, Frequency: 50Hz, Voltage factor : 1.2 Continuous & 1.5 for 30 Sec, Nominal System Voltage : 33KV effectively earthed System, BIL : 36/70/170kV, Ratio :33KV/3/110V/3 - 110V/3, Core 1:Burden : 100VA Class: 05.Core 2 : Burden 100VA,Class - 3P. |
| 15 | Supply Installation, Testing and Commissioning of 30kV , 10kA SL-Station Low duty (Old line Discharge CL-II), Polymer Gapless type Lightning Arrester, model:PBC in Oblem-Hyderabad or equivalent in Crompton / ABB. The detailed specification of Lightning Arrester are us under : Maximum System Voltage :36KV, Nominal System Voltage: 33KV, Rated Voltage: 30KV, MCOV :25KV (RMS), Nominal discharge current : 10kAp ,Pr. Relief Current : 40kA @ 0.2sec, Cantilever Strength: 150kgf, Creepage Distance 31 mm /kV, Line Discharge Class : 2, Frequency : 50Hz. TheLightning arrester Shall becomprising of metal Oxide Elements Housed in FRP CAGE 'DESIGN B'. , duly moulded with silicone Polymer, having insulating base and Terminal Connector etc., Complete as required and as directed by Engineer-in-Charge. |
| 16 | Supply, Installation, Testing and Commissioning of 33KV, 200Amps Horn Gap fuse unit of approved make. The Horn Gap fuse unit shall be complete with Porcelain Post insulators, GI Channel mounting etc. (Set of three) |
| 17 | Supply, Installation, Testing and Commissioning 33KV, 630A, 25KA, 1 Sec, Triple pole, Double Break Manual Operated Isolator with Terminal Connectors, Aux. Contacts, Electrical Solenoid for Interlocking, Supporting Insulators and complete with all accessories including providing mechanical interlock with the existing isolator of make GR Switch Gear Ltd./S&S Power Switchgear Limited, Chennai/ Pensar Electric Pvt. Ltd . Please Enable Macros to View BoQ information |
