Details: 630 kva servo controlled automatic voltage stabilizer (copper) specification : * input voltage range : 138 to 265 volts (phase to natural) and 240 to 460 phase to phase * output voltage range : 415 volts +-2.5% (phase to phase) * frequency : 50hz * capacity overload : 20% overload for one hour.* protections : overvoltage, under-voltage through relays and overload and short-circuit through suitable acb *indoor type *unbalance type * suitable for all power factor. * cooling shall be onan. * efficiency be more than 95% * adequate size of the stabilizer using heavy duty steel * speed of correction more than 10 volt per second.* suitable capacity of ac synchronous servo motor be used * suitable quantity of fresh transformer oil of power oil/savita make for adequate cooling * quality for copper used be 99.97% pure. * main on indication lamp. * visual indication for input voltage beyond the input voltage range. * voltmeter of 96x96 mm size 0-300v range, a.e
Sector: Education Misc