Electrical equipment partial discharge detection device

Abstract

The invention provides a electrical equipment partial discharge detection device, and belongs to the technical field of partial discharge detection. The electrical equipment partial discharge detection device comprises a guide part, a detection part and a detection terminal. The guide part sleeves outside a cable to be detected and can move along the cable to be detected. The detection part sleeves outside the guide part and can move along the guide part. When the guide part moves along the cable to be detected, the curled cable to be detected can be straightened. And when the detection part moves along the guide part, the detection part can move from one end of the cable to be detected to the other end, and is used for comprehensively detecting the cable to be detected. When partial discharge exists in the cable to be detected, the detection part can generate induction current based on the partial discharge current. can generate induction current based on partial discharge current. Compared with the prior art, detection dead angles can be avoided, comprehensive detection of the to-be-detected cable can be achieved, and the cable detection device has the advantages of being good in detection effect and accurate and reliable in detection structure.

Description

technical field [0001] The invention belongs to the technical field of partial discharge detection, in particular to a partial discharge detection device for power equipment. Background technique [0002] At present, the aging of power supply cables of power equipment is mostly caused by partial discharge. Therefore, it is necessary to conduct partial discharge detection on power supply cables on a regular basis to eliminate potential safety hazards. [0003] In the prior art, the partial discharge detection of the power supply cable is mostly realized by using the cable to lead out the signal, but this method is limited by the detection occasions, and in some occasions, the high-voltage cable cannot be connected, that is, the partial discharge detection cannot be performed , and some are judged by putting the induction coil close to the power supply cable and observing whether the induction coil generates current through the principle of current mutual induction. However, b...

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Problems solved by technology

[0003] In the prior art, the partial discharge detection of the power supply cable is mostly realized by using the cable to lead out the signal, but this method is limited by the detection occasions, and in some occasions, the high-voltage cable cannot be connected, that is, the partial discharge detection cannot be performed , and some are judged by putting the induction coil close to the power supply cable and observing whether the induction coil generates current through the principle of current mutual induction. However, because some power supply cables are curled or bent inside the power equipment, the hidden cables It cannot be detected by the induction coil, resulting in poor detection effect and low accuracy of detection results

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