00499nam a22001457a 4500 9789350141489 (pbk) 621.31 GUP Gupta, B. J. Fundamentals of switchgear and protection Delhi Katson books 2011 330 p. : ill. (Fig.) ; 24 cm. Includes index. Electrical engineering Projection system Apparatus protection Transformer protection Transformer protection Circuit breaker FEAS BK 0 0 0 0 RIU RIU 2014-02-12 Purchased: Allied Book Company 464.00 3 621.31 GUP 20266 2020-03-02 2020-02-17 00:00:00 2020-02-17 1 2019-02-21 BK 11805 11805