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SOLID - STATE TRIP UNIT FOR DC CIRCUIT BREAKERS
SOLID - STATE TRIP UNIT FOR DC CIRCUIT BREAKERS
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机译:固态断路器的直流断路器
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摘要
55, 183 A contactor includes two DC sensors within the housing which are isolated from the tripping unit, from the power supply and from each other by the combination of a transformer and photoelectric coupling, the sensed signals being pulse width modulated and demodulated on the respective sides of the photoelectric coupling barrier.
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