procurement of 01 no. 11 kv, 2000 amp. vacuum circuit breaker of make schneider electric ex. alstom as per enclosed specification for 3x20 mw bs-3 hps mppgcl deolond , 11 kv, 2000 amp. vacuum circuit breaker type – vcb, serial no. 825108/3/1 enclosure type - hwx rated continuous current – 2000 amp, rated frequency – 50 hz rated breaking capacity a) symmetrical s.c., mva/ka rms – 500 mva / 26.2 ka rms b) asymmetrical s.c., ka rms – 33 ka rms duration for short circuit – 1 sec rated making capacity, ka peak – 66 kap insulation level – 28 kv a) impulse, withstand, kvp – 75 kvp b) one minute power frequency withstands, kv rms – 28 kv rms rated short time current for 3 sec, ka rms – 26.3 ka rms type of arc control device – vacuum interrupter operating duty – o-0.3 sec-co-3 min - co auxiliary contacts – 6 no + 6 nc operating mechanism – motor charged closing coil voltage – 220 v dc tripping coil voltage – 220 v dc for detailed technical specification please refer general technical particulars (annexure -iii) make – schneider electric (ex. alstom)