00333nam a2200133Ia 4500008004100000020001500041041001200056082001100068100001400079245005600093260003400149300000900183650000700192221030s9999    xx            000 0 und d  a8188458937  aEnglish  a105.23  aS. S. Rao 0aSwitchgear Protection & Power systemscby S. S. Rao  bKhanna  Pub.aNew Delhic2011  a1339  aEE