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Development of On-Line Monitoring System for Pumped Storage Generator/Motor  

김희동 (한전 전력연구원)
주영호 (한전 전력연구원)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers C / v.53, no.3, 2004 , pp. 168-174 More about this Journal
Abstract
On-line monitoring system(OMS) has been developed for the pumped storage generator/motor The OMS is applied to diagnosis of the PD(partial discharge) activity of stator insulation, the shorted-turn of rotor winding and the variation of the air-gap between stator and rotor. The OMS consists of DAS(data acquisition system), main server system, gateway and display PC. The DAS measures the PD, the shorted-turn and air-gap from three sensors installed on the generator/motor. The gateway controls the data which sent by DAS. The main server system saves the data, analyzes the data and conducts the diagnostic algorithm. The display PC shows the diagnostic results of partial discharge, shorted-turn and air-gap. Field tests were conducted using PDA(partial discharge analyzer). The results of the OMS and PDA measurements can be directly correlated with normalized quantity number(NQN), PD magnitude(Qm) and PD pattern.
Keywords
OMS; generator/motor; partial discharge; shorted-turn; air-gap; DAS; PDA;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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