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INSPECTION SYSTEM OF PHASE COMPARSION RELAY
INSPECTION SYSTEM OF PHASE COMPARSION RELAY
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机译:相比较继电器检查系统
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摘要
PURPOSE:To inspect the quality of a phase comparison relay and a signal transmission line by consecutively transmitting the trip lock signal froma a variable power end and sending back a signal which is different from that at normal time in the other party end, then checking it.
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