supply of step down transformer capacity 50kva voltage input 750 volts output 415 volts ac, 50 hz, confirming to rdso spec. no. - el/eog/6/93 (rev-a)-97 , type-1 suitable for conventional type eog ac coaches used in pow coaches.step down transformer capacity 50kva voltage input 750 volts output 415 volts ac, 50 hz, confirming to rdso spec. no. - el/eog/6/93 (rev-a)-97 , type-1 suitable for conventional type eog ac coaches used in pow coaches.,step down transformer capacity 50kva voltage input 750 volts output 415 volt s ac, 50 hz, confirming to rdso spec. no. - el/eog/6/93 (rev-a)-97 , type-1 suitable for conventi onal type eog ac coaches used in pow coaches. [ warranty period: 30 months after the date of de livery ] ]