| 摘要 |
<p>PURPOSE:To get information for the early recovery at the time of an accident by accurately judging an accident block, using the magnitude of a current for detection of the accident. CONSTITUTION:A gas-insulated switchgear 3, where a container for accommodating each element is divided into a plurality of gas blocks, are provided with current detectors, which severally detect the currents of three-phase buses built in insulating spacers 1AB, 1AC, 1CD, 1DE, 1DF, 1E, 1F, and 1A for dividing each gas block, and an accident block judging part 4, which compares the magnitude of this current with the specified judgment level and judges the gas block of accident occurrence.</p> |
