Varma,C.V.J & Lal,P.K <br/><br/>
CBIP-274; Manual on protection of generators, generator transformers and 220 Kv and 400 Kv networks 

 - New Delhi  CBI&P  1999 
 - 56p 
<br/><br/><label>Universal Decimal Class. No.: </label>621.313.1/.314  / VAR.99