00338nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001400084245005600098260003400154300000900188650000700197221030s9999    xx            000 0 und d  a8174090290  aEnglish  a105.23bRao  aS. S. Rao 0aSwitchgear Protection & Power systemscby S. S. Rao  bKhanna Pub.,aNew Delhic1999  a1691  aEE