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http://dx.doi.org/10.5370/KIEEP.2010.59.3.311

A Study on Insulation Property of VPI Type Generator Stator Winding Through the Case Analysis of Insulation Breakdown  

Kong, Tae-Sik (한전 전력연구원)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.59, no.3, 2010 , pp. 311-316 More about this Journal
Abstract
According to increase of combined cycle power generation, the manufacturing market of gas turbine generator has become more competitive, so there is high pressure on the manufacturer to reduce generator price. Global VPI(vacuum pressure impregnation) method is effective to save the production cost and time for manufacturing stator windings, but it has an abrasion problem by vibration between stator windings and slots. This paper presents the insulation breakdown case, which is for VPI type generator during high voltage insulation tests, and also shows the cause analysis, repair works as well as reliability test. the purpose of this paper is to understand the insulation properties of VPI type generator and to know prevention of insulation weakness.
Keywords
Generator; Vacuum Pressure Impregnation; Vibration; Abrasion; Insulation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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