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http://dx.doi.org/10.5370/KIEE.2014.63.6.780

Estimation of Insulation Diagnosis and Dielectric Strength in 6.6 kV Motor Stator Windings  

Kim, Hee-Dong (Korea Electric Power Corporation (KEPCO) Research Institute)
Kong, Tae-Sik (Korea Electric Power Corporation (KEPCO) Research Institute)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.63, no.6, 2014 , pp. 780-785 More about this Journal
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.
Keywords
Deterioration condition; Stator insulation; HV motor; BFP; Diagnostic test; Dielectric strength test; Serviceable condition;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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