METHOD FOR DETERMINING PARTIAL DISCHARGE GENERATION VOID CLASS

摘要

PROBLEM TO BE SOLVED: To provide a method for determining the class of a void in which partial discharge occurs, without depending on a deterioration state of a measurement target.;SOLUTION: A measurement target is installed within a device such as a constant-temperature/constant-humidity tub in which a temperature/humidity can be controlled and under a condition through a step of generating bedewing on a surface of the measurement target and a step of canceling bedewing, a partial discharge initiation voltage with a monopolar pulse voltage as a test voltage is measured. A characteristic where a behavior of the partial discharge initiation voltage in the bedewing canceling step is different in accordance with the class of a void in which partial discharge occurs, is utilized to determine the partial discharge occurrence void class.;COPYRIGHT: (C)2012,JPO&INPIT