| 摘要 |
PURPOSE:To provide a highly reliable faint ground fault locator in which a faint ground fault generating circuit is provided in each slave station and the slave station is inspected by generating faint ground fault based on an inspection command delivered from a master station. CONSTITUTION:The faint ground fault section locator for distribution line comprises slave stations 5-13 distributed on a high voltage distribution line 2, and faint ground fault generating circuits 14 provided at respective slave stations 5-13, wherein the function of the slave stations 5-13 is inspected by generating faint ground fault based on a command delivered from a master station 3. Since faint ground fault detecting function at each slave station can be constantly monitored, reliability of locator can be enhanced. Furthermore, since the function is inspected by taking advantage of actual distribution line, detection sensitivity is not subjected to system modification. |
