| 摘要 |
PROBLEM TO BE SOLVED: To accurately detect only either vertical waves or horizontal waves included in an acoustic signal, and to accurately calculate a partial discharge position based on the detection signal in detecting the partial discharge position due to a defect of power cable connecting part or the like with an ultrasonic sensor. SOLUTION: In this partial discharge generating position detecting device, a pair of ultrasonic sensors 10a and 10b are arranged with a prescribed interval at arbitrary positions from the partial discharge position of an object, and either vertical wave or horizontal wave components are eliminated from each sensor signal by a signal processing part 11, and a distance until the discharge generating point is accurately calculated by an arithmetic part 12 based on any wave component signal.
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