고압회전기 절연열화진단의 현장적용기술연구

A Study on Site Application Techniques for Insulation Reliability of Rotating Machine

  • 김길용 (한전기술연구원 발전연구실) ;
  • 조경해 (한전기술연구원 발전연구실) ;
  • 김택수 (한전기술연구원 발전연구실) ;
  • 한상욱 (충남대 전기공학과) ;
  • 이현수 (충남대 전기공학과)
  • 발행 : 1991.07.18

초록

Most of the failures of rotating machine are stator coil insulation failures. The insulation diagnostic testing for high voltage motors and generators are only megger test and P. I Test which is applied DC voltage until now. But it was impossible to judge insulation deterioration status of high voltage rotating machinery by above testing. In other words, even though the megger measurement values are fairly high, they used to be failed from time to time. Therefore in order to excute reliable and detailed diagnosis of insulation deterioration for rotating machinery, the tangent delta test, the alternating current test and the partial discharge test shall be applied to the insulation diagnostic testing on site.

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