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Zhu H.-T.,Northwest Lanzhou Power Transmission and Transformation Operation Company | Liu X.-H.,Northwest Lanzhou Power Transmission and Transformation Operation Company | Li M.,Northwest Lanzhou Power Transmission and Transformation Operation Company | Li H.-B.,Northwest Lanzhou Power Transmission and Transformation Operation Company | And 2 more authors.
Gaoya Dianqi/High Voltage Apparatus | Year: 2010

This paper briefly introduces the partial discharge occurrence on the 75221 phase A disconnector, as well as the testing system theory and testing process of GIS PD ultrasonic detecting; compares the advantages and disadvantages between the ultrasonic method and the traditional PD detecting method, deeply analyzes the PD characteristics of the internal phase 75221 A. The result shows that AIA PD ultrasonic instrument applicable to the apparatus such as: the GIS equipment, which has been put into operation, and SF 6 tank breaker etc. for PD live detecting and short-term on-line monitoring. Source

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