Oil Cooling Unit For Transformer/Converter Including Motor. Specn/ Drg. No. :-As Given B Elow:- [Sr. No. 1] - Oil Cooling Unit For Transformer/Converter With Aluminium Impellor And Casing Spec N/Drg-Clw/Es/3/0647 Alt-E [Sr. No.2] - 30Kw Motor For Cooling Unit (Centrifugal Design) For 3-Phase Lo Cos. Rdso Specn No- E-10/3/09 (Motor) With Amendment No-1 To 06. [ Warranty Period: 30 Months After The Date Of Delivery ] ]