Electrified detection system for partial discharge of electric sleeve

A partial discharge and charged detection technology, applied in the detection field, can solve problems such as low sensitivity and poor anti-interference

Inactive Publication Date: 2014-04-02
GUANGZHOU POWER SUPPLY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a partial discharge live detection system for power bushings t

Method used

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  • Electrified detection system for partial discharge of electric sleeve
  • Electrified detection system for partial discharge of electric sleeve
  • Electrified detection system for partial discharge of electric sleeve

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Embodiment Construction

[0014] Various embodiments of the electrical bushing partial discharge live detection system of the present invention will be described in detail below.

[0015] like figure 1 As shown, it is a schematic structural diagram of an embodiment of the electric bushing partial discharge live detection system embodiment of the present invention, including: a directional antenna, a signal conditioner, and a signal collector;

[0016] The directional antenna, the signal conditioner, and the signal collector are connected in sequence; wherein, when in use, the receiving end of the directional antenna points to the part to be measured of the electric bushing, and the signal output end of the alignment antenna is connected to the signal conditioner. The connection among the directional antenna, the signal conditioner, and the signal collector can be a wired connection or a wireless connection.

[0017] The directional antenna is used to detect the electromagnetic wave signal radiated by ...

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Abstract

The invention discloses an electrified detection system for partial discharge of an electric sleeve. The electrified detection system comprises a directional antenna, a signal conditioner and a signal collector, wherein the directional antenna, the signal conditioner and the signal collector are sequentially connected; the directional antenna is used for detecting an electromagnetic wave signal radiated due to discharge of a to-be-detected position of the electrified sleeve, converting the electromagnetic wave signal into a voltage signal and sending the voltage signal to the signal conditioner; the signal conditioner is used for carrying out noise removing on the voltage signal, amplifying the voltage signal and sending the conditioned signal to the signal collector; the signal collector is used for obtaining a digital signal by carrying out AD (Analog to Digital) conversion on the conditioned signal, and storing and displaying the digital signal. According to the technical scheme disclosed by the invention, the detection sensitivity is increased, and strong interference from severe electromagnetic environment of a transformer substation to partial discharge detection is overcome.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a partial discharge live detection system for electric bushings. Background technique [0002] Power bushings with a voltage level of 110kV and above are the main power equipment in substations. Once insulation failure occurs, it often leads to power outages in substations and even local areas, which has a huge negative impact on economic and social stability. Partial discharge is the early sign and important cause of internal insulation failure of these equipment. Timely detection of partial discharge phenomenon, determination of discharge location and elimination of insulation defects causing partial discharge are effective measures to avoid internal insulation failure of equipment. With the improvement of power supply reliability requirements and the development of condition-based maintenance technology in economic and social development, live detection of partial discharge ...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 曲德宇王勇黄炎光肖天为张显聪陈俊刘民熊俊郑书生李成榕
Owner GUANGZHOU POWER SUPPLY CO LTD
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