Tender For Supply Of Sf6 Ckt Breaker Voltage:72.5Kv, Normal Current:1600A, Frequency:50Hz, Power Frequency W ... in India

Work Detail

Tender For Supply Of Sf6 Ckt Breaker ? , Sf6 Gas Circuit Breaker Voltage:72.5Kv, Normal Current:1600A, Frequency:50Hz, Power Frequency Withstand Voltage(Rms):160Kv, Lighting Impulse Withstand Voltage:325Kvp, First Pole To Clear Factor :1.5, Short Time Withstand Current:31.5Ka, Duration Of Short Circuit:3 Second, Short Circuit Making Current: A) Symmertrical:31.5Ka, B) Asymmertrical:37.1Ka, Short Circuit Making Current:79Kap, Out Of Phase Breaking Current:7.9Ka, Operating Sequence:O-.3S-Co-3Min-Co, Sf6 Gas Pressure At 200C,1013 Hpa(Bar), Total Mass Of Sf6 Gas:4.5Kg Control Circuit Voltage: 110V Dc Note: A) Following Protection Required At Circuit Breaker: 1) Circuit Breaker Lockout And Look Into 2) Gas Pressure Low 3)Spring Charged/Spring Discharged 4) Dc On/Dc Off 5) Dc Failure Protection 6)Trip Coil 1 Circuit Faulty B) Dismantlement Of Old Breakers And Installation, Testing And Commissioning Of New Sf6 Breakers Will Be In The Scope Of The Supplier. C) All The Old Dismantled Circuit Breakers Will Be Stored In The Hydel Store By The Supplier. D) All Consumable & Other Material Required To Complete The Commissioning Work Shall Be Remain In The Scope Of Firm.

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