TY  - BOOK
AU  - Singh,L.P.
TI  - Digital protection: protective relaying from electromechanical to microprocessor 
SN  - 8122410537
U1  - 621.9 
PY  - 1997///
CY  - Calcutta
PB  - New Age International
KW  - Microprocessors
KW  - Power supply
KW  - Protective relays
N1  - Includes index
ER  -