Partial discharge detection device evaluation method

Abstract

The invention discloses a partial discharge detection device evaluation method comprising a static state index evaluation method and a dynamic state index evaluation method. The static state index evaluation method is characterized in that the static state calibrating of the partial discharge detection device can be carried out according to the related specification of the partial discharge, and the comparison between the index result and the index of the related specification can be carried out to acquire the static state index evaluation. The dynamic state index evaluation method is characterized in that the ps level pulse signal can be input in the partial discharge detection device, and the dynamic state index evaluation of the partial discharge detection device can be analyzed by comparing the input pulse signal and the output pulse signal according to the spectrum analysis method; and according to the non-distortion transmission condition, whether the dynamic state index evaluation accords with the dynamic state index can be determined. The partial discharge detection device evaluation method is advantageous in that the performance of the partial discharge detection device can be evaluated systematically and accurately, and the realization is simple, and the calibrating cost is low; the requirement of the national standard on the evaluation of the partial discharge detection device can be satisfied, and the standard reference signal can be provided for the calibrating and the correcting of the related device, and the measurement standard and the evaluation system can be provided for the purchase of the partial discharge detection device.

Description

technical field [0001] The invention relates to the technical field of partial discharge diagnosis of power equipment, in particular to an evaluation method of a partial discharge detection device. Background technique [0002] Partial discharge detection, as an important means of insulation diagnosis of power equipment, can not only reflect the early failure of equipment more sensitively, provide a basis for effective preventive measures, but also reflect the insulation status of high-voltage power equipment. At present, there are many products of partial discharge detection devices at home and abroad, but their performance and accuracy cannot meet the requirements of partial discharge testing. Therefore, performance evaluation and calibration of partial discharge detection devices is an essential work. [0003] In the prior art, there are many evaluation methods for partial discharge detection devices, including pulse current method, ultrasonic wave, ultra-high frequency ...

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Problems solved by technology

[0005] An evaluation method of a partial discharge detection device is provided in an embodiment of the present invention to solve the problem of non-standard and uncertain methods for evaluating the performance of a partial discharge detection device in the prior art

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