| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a partial discharge measuring method for gas insulation suitchgear detecting a partial discharge from noise with high sensitivity and capable of easily specifying an insulating spacer generating the partial discharge during the measurement of the partial discharge of the insulating spacer. SOLUTION: Potential differences are kept between a high-voltage conductor 12 and a plurality of insulating spacers 15a, 15b, 15c, and partial discharges are concurrently detected from at least two portions of the insulating spacers 15a, 15b, 15c by partial discharge detectors 17a, 17b, 17c. The difference of partial discharge quantities is obtained between two or more portions by a comparator 18, and a generating source of the partial discharge is specified from this value.</p> |
