00270nam a2200109Ia 4500008004100000041001200041082001100053100001600064245006800080260000600148650000600154221030s9999    xx            000 0 und d  aEnglish  a105.23  aJ. B. Gupta 0aSwitchgear & Protection (Advanced Power System)cby J. B. Gupta  c0  aB