TY - BOOK AU - Singh,Ravindra P. TI - Digital power system protection SN - 9788120329805 (pbk.) AV - TK1005 .S56 2007 U1 - 621.31 22 PY - 2007/// CY - New Delhi PB - Prentice Hall of India KW - Electric power system. N1 - Includes bibliographical references and index ER -