00249nam a2200097Ia 4500008004100000041001200041100002200053245006400075260000600139650000600145221030s9999    xx            000 0 und d  aEnglish  aT. S. Madhava Rao 0aPower system Proteciton Static Relayscby T. S. Madhava Rao  c0  aB