Research on Reliability Evaluation Method of Relay in Pumped Storage Unit
A large number of electromagnetic intermediate relays are used in each system control unit of pumped storage unit.The reliable operation of relays determines the stability of the system.In the past two years,the failures of pumped storage power stations caused by intermediate relay failures occurred frequently.This paper introduces the design of a relay automatic calibration device and summarizes a set of relay reliability evaluation methods.
pumped storage power stationautomatic checkrelayreliabilityevaluate
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