supply of on load tap changer , oltc for techno 100mva-130183 on load tap changer with motor drive mechanism . conforming as per the order specification sheet sg0100sc , tap changer specifiaction sheet ed/aop15/130183/02 & technical spec ed/tech spec/techno/01 pages 1 ~ 5 max current : at least 315a rated impulse withstand voltage ( in kv , 1 . 2/50 ) : 750 rated power frequency withstand voltage ( in kv , 50 hz , 1min ) : 295 no . of poles : 3 preferably of type 3xm1 351 170/c 12 . 11 . 1w/equivalent unpriced commercial offer clearly mentioning the type of oltc offered & complete set of drawings shall be furnished along with the offer