| 摘要 |
<p>The present invention relates to a partial discharge detecting device for a gas insulated switchgear. The partial discharge detecting device including an antenna which detects a partial discharge signal generated in a gas insulated switchgear comprises: a cover which is coupled to one side of an outer enclosure of the gas insulated switchgear; a case which is disposed between the outer enclosure and the cover to accommodate the antenna therein; a connector which is coupled to an inner surface of the cover and electrically connected to the antenna in the case; a first sealing member which is disposed between the cover and the connector; a probe which is coupled to the inner surface of the cover and inserted into the case to detect a phase signal within the outer enclosure; a second sealing member which is disposed between the cover and the probe; and a third sealing member which is disposed outside the case above the cover to shield internal and external electromagnetic waves of the gas insulated switchgear. The first to third sealing members can prevent an insulation gas or electromagnetic waves from leaking from the inside to the outside of the gas insulated switchgear.</p> |
