tender for electrical equipment,switch gear spares, spares for 3.3kv siemens make switchgear panel (swgr231&232) at substation 40, make-siemens - siemens make vacuum circuit breaker for motor feeder of swgr231,feeder for auto transformer of wgc panel (swgr232) & auto transformer neutral panel of swgr232 at substation 40 make: siemens model : 3ah3 (existing model: 3af 1162-3&3af 1152-3) rated voltage (u): 7.2kv rated current (in): 1250a frequency: 50hz insulation level (uw) :75kv short-circuit breaking current (isc) :40ka short-circuit current duration (ith):3 sec. short-circuit making current:100ka rms operating sequence: o-co-3min.-co 70 0107746 001 operating voltage of cc,tc & spring charging motor: 110v dc supplied vcb shall be one to one retrofitting to existing model without any field modifications.
