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전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

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한글제목(Korean Title) 6.6 kV 전동기 고정자 권선의 절연진단과 절연내력 평가
영문제목(English Title) Estimation of Insulation Diagnosis and Dielectric Strength in 6.6 kV Motor Stator Windings
저자(Author) 김희동   공태식   Hee-Dong Kim   Tae-Sik Kong  
원문수록처(Citation) VOL 63 NO. 06 PP. 0780 ~ 0785 (2014. 06)
한글내용
(Korean Abstract)
영문내용
(English Abstract)
To assess the deterioration condition of stator insulation, diagnostic and AC dielectric strength tests were performed on five high voltage (HV) motors (2,000 HP, 6.6 kV) for boiler feed-water pump (BFP). Two HV motors for BFP were installed per unit. Following the long term rewinding program, the diagnostic test was performed on five 6.6 kV motors during the planning maintenance period. After completing diagnostic test, AC dielectric strength test was done on the stator windings of HV motors. The AC dielectric strength test was conducted at 15 kV for one minute. Dielectric strength test and diagnostics test results confirmed that the stator insulation was judged to be in serviceable condition in the five 6.6 kV motors.
키워드(Keyword) Deterioration condition   Stator insulation   HV motor   BFP   Diagnostic test   Dielectric strength test   Serviceable condition  
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