00526nam a2200169Ia 450000100060000000300040000600500170001000800410002704000110006804100080007908200190008710000240010624500980013094200070022899900170023595201040025228750Ost20260507160248.0251113s9999||||xx |||||||||||||| ||eng||  cnitttr  aeng  a621.319bB63U   aBollen,  Math H. J. 0aUnderstanding power quality problems :b Voltage sags and interruptions /cBollen, Math H. J.  cBK  c28557d28557  00104070aNITTTRbNITTTRd2026-05-07l0o621.319 B63Up46161r2026-05-07 16:02:48w2026-05-07yBK