| 摘要 |
<p>PURPOSE:To efficiently locate a trouble place with high accuracy by using a reduced number of detectors usually to perform on-line monitor by properly using detection frequency. CONSTITUTION:When a disconnector 5 on a line side and a disconnector 2A on a bus side are opened in a circuit I, the usual line and main bus 1A of the circuit I are stopped and regions B, D to be monitored are charged through a main bus 1B. Since it is necessary to monitor the partial discharge in both regions B, D to be monitored, the partial discharge detectors 13B, 13D in the respective regions B, D are used to monitor the regions B, D and partial discharge can be detected. By this method, when partial discharge is usually monitored on-line, partial discharge can be efficiently monitored by using only the partial discharge detector of a necessary region.</p> |
