supply of transformer oil cooler blower motor- three phase two speed induction motor with b4 type frame size 100 suitable.transformer oil cooler blower motor- three phase two speed induction motor with b4 type frame size 100 suitable.,transformer oil cooler blower motor- three phase two speed induction motor with b4 type frame size 100 suitable and compat ible with abb/siemens make transformer (1250kva) used in medha make 3 phase emu motor coach as per rdso specification no rdso/pe/ spec/emu/0163-2012 rev (1) makes: abb, hindustan or equivalent. type: b4, frame size-100,3phase, 50hz,415v ac,0.4/1.6 kw (0.54/2.2hp ), amps: 1.10/3.50, dual speed: 1430/2920 rpm, power factor 0.75/0.84 with efficiency:73/81%, ip56, insulation class h. [ warranty period: 30 months after the date of delivery ] ]