supply of step down transformer:step down transformer:,step down transformer ( type-ii) 50kva capacity- input voltage 750 volts out put 415 volt ac, 50 hz, conforming to rdso spec.no. el/eog/6/93 (rev-a)-97. rdso drg. no.- 4253 alt . 1. suitable for high capacity power car . [ warranty period: 30 months after the date of delivery ] ] , step down transformer ( type-1) 50kva capacity- input voltage 750 volts out put 415 volt ac, 50 hz, conforming to rdso spec.no. el/eog/6/93 (rev-a)-97. rdso drg. no.- 4251 alt . 1. suitable for conventional eog ac coaches. [ warranty period: 30 months after the date of deli very ] ]