00445pamaa2200145 4500 0000024129 20060622090000.0 8122401023 629.8 PAD 1990 TK3111 PAD 1990 PADIYAR HVDC power transmission systems : technology and system interactions K.R. Padiyar. New Delhi: Wiley Eastern Ltd., 1990. xii, 289p.: ill.; 24cm. Power transmission control