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High-frequency partial discharge detection system and method

A detection system and partial discharge detection technology, applied in the field of power systems, can solve the problem of low detection accuracy of partial discharge signals

Pending Publication Date: 2020-10-23
SHENZHEN POWER SUPPLY BUREAU
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the detection accuracy of PD signals using high-frequency PD detectors is low

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  • High-frequency partial discharge detection system and method
  • High-frequency partial discharge detection system and method
  • High-frequency partial discharge detection system and method

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Embodiment Construction

[0061] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0062] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in th...

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Abstract

The invention relates to a high-frequency partial discharge detection system and method. The high-frequency partial discharge detection system comprises a signal acquisition device, a frequency selection device and a partial discharge signal detection device, wherein the signal acquisition device is used for acquiring a mixed signal; the frequency selection device is in signal connection with thesignal acquisition device and is used for acquiring a signal of a preset transmission frequency point in the mixed signal, so as to obtain a frequency selection signal; and the partial discharge signal detection device is in signal connection with the frequency selection device, and is used for detecting a partial discharge signal in the frequency selection signal. The high-frequency partial discharge detection system provided by the invention has relatively high accuracy when detecting the partial discharge signal.

Description

technical field [0001] The present application relates to the technical field of power systems, in particular to a high-frequency partial discharge detection system and method. Background technique [0002] Live high-frequency partial discharge detection is the most effective method for detecting the state of high-voltage cable lines. Usually, when detecting high-frequency partial discharge, it will be affected by interference signals. High-frequency partial discharge signals have wide spectrum characteristics, while interference signals have frequency-division characteristics. [0003] In traditional technology, a high-frequency partial discharge detector is usually used to detect partial discharge signals. However, the detection accuracy of PD signals using high-frequency PD detectors is low. Contents of the invention [0004] Based on this, it is necessary to provide a high frequency partial discharge detection system and method for the above technical problems. [...

Claims

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Application Information

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IPC IPC(8): G01R31/12G01R23/16
CPCG01R31/1272G01R23/16
Inventor 陈腾彪
Owner SHENZHEN POWER SUPPLY BUREAU