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《Electric Engineering》 2018-15
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Analysis and Treatment of LCU Synchronization Function in Switch Station

ZHANG Yanzhi;LI Yali;HE Lin;HONG Yu;Yellow River Hydropower Development Corporation;  
Aiming at the problem of complex PT switch and locking loop and lots of relays of LCU synchronization function of computer monitor system in switch station Xiaolangdi hydropower station,an intelligent AC sampling device AI-6303 was equipped by each outlet line and bus circuit breaker.Through synchronization function of AI-6303,the synchronization and non-synchronization operation were implemented.The problem of synchronization function abnormal after transformation was analyzed.The safety,economy and the least difficulty solution was proposed,and the automatic synchronization function of the local control unit of the switch station was successfully restored.
【CateGory Index】: TV738
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