Details: supply and delivery at site of 25 kva, 3phase, oil cooled type servo motor operated copper wound line voltage corrector conforming to is-9815 (pt.-1)- 1994 suitable for un-balanced input voltage with following specification including first filling oil as per is-335 where applicable.a) input voltage:- 3 phase, main supply may or may not be balanced with respect to phase to phase- 200v-500v phase to neutral-115v-290v.b) output voltage:-3 phase balanced output voltage. phase to phase- 400vor 415v± 1%, phase to neutral- 230v-240v ± 1% (provision should be made to adjust the variation of output voltage per phase by a variable oil within ± 5% of output).c) line regulation:- out put voltage should remain well with ±1% of set voltage (from minimum to maximum i.e. either 400v. or 415v. supply variation).d) load regulation : output voltage should remain neutral well within ±1% of set voltage be ( from no load to full load ) i.e. either 400v. or 415v.e) correction speed:- better than 35 volt /
Sector: Water supply and Sewerage