supply of battery charging unit cum pre-cooling transformer, with enclosure of stainless steel, input voltage -415v ac, 3 phase, 50 hz, output -200 amps, 130v dc, suitable for use in pre-cooling of self generating type ac coaches , as per rcf specification no. edts-041 ( rev-b ).battery charging unit cum pre-cooling transformer, with enclosure of stainless steel, input voltage -415v ac, 3 phase, 50 hz, output -200 amps, 130v dc, suitable for use in pre-cooling of self generating type ac coaches , as per rcf specification no. edts-041 ( rev-b ).,battery charging unit cum pre-cooling transformer, with enclosure of stainl ess steel, input voltage -415v ac, 3 phase, 50 hz, output -200 amps, 130v dc, suitable for use in pre-cooling of self generating type ac coaches , as per rcf specification no. edts-041 ( r ev-b ). [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] carriage stores depot ajmer, rajasthan 5.00 numbers