| 摘要 |
<p>PURPOSE:To locate a generating part of partial electric discharge by constituting this device so that a measured pattern of a level sequence of an output part and a simulation pattern obtained by a simulation signal under the same condition as this time can be compared, even if plural capacitor type partial discharge can detect simultaneously discharge. CONSTITUTION:In a closed container 5, plural capacitor type partial discharge detection sensors 6a - 6f are provided, and by a detection output, a generating part of partial discharge is measured. Also, breakers 2a - 2e, disconnecting switches 3a - 3l and and main circuit conductors 4a - 4k for connecting electrically these apparatuses are provided on the closed container 5, a detection electrode 7 is provided on a position opposed at a prescribed interval of the sensors 6a - 6e, and in a state that the electrode 7 is insulated electrically from the inside of the closed container 5 through a dielectric 9, a detection output is outputted from an airtight terminal 8. Subsequently, when partial discharge is generated, a measured pattern is obtained in order of output levels of each sensor 6a - 6f, and next, compared with a simulation pattern obtained by injecting a simulation signal of the same discharge zone as the detected partial discharge into the electrode 7, and from a discharge position of both the patterns, a generated position of the partial discharge is located.</p> |
