GIS ultrahigh frequency partial discharge online monitoring system

A partial discharge and monitoring system technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of scratching damage to the outer skin of the coaxial cable, trouble in carrying and using, and poor contact of the sensor, so as to facilitate the inspection of equipment. It is convenient for inspection, carrying and on-site use, and the effect of avoiding interference

Inactive Publication Date: 2016-10-26
STATE GRID CORP OF CHINA +2
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Problems solved by technology

Due to the long signal line, it is easy to cause the sensor to be insecure due to the signal line during measurement, which brings great trouble to carrying and using.
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  • GIS ultrahigh frequency partial discharge online monitoring system
  • GIS ultrahigh frequency partial discharge online monitoring system

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[0013] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0014] In the following description, many specific details are explained in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the connotation of the present invention. Similar promotion, therefore, the present invention is not limited by the specific embodiments disclosed below.

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Abstract

The invention discloses a GIS ultrahigh frequency partial discharge online monitoring system, and relates to the technical field of discharge detection devices. The system comprises an ultrahigh frequency sensor, a detection instrument main unit, and a processing terminal. The ultrahigh frequency sensor is provided with a signal transmitting unit, and an induction ultrahigh frequency radio signal sensed by the ultrahigh frequency sensor is transmitted to a signal receiving unit through the signal transmitting unit. The signal receiving unit enables the induction ultrahigh frequency radio signal to be transmitted to the detection instrument main unit for preprocessing. After preprocessing, the induction ultrahigh frequency radio signal is transmitted to the processing terminal for processing through a wired network. The processing terminal operates partial discharge analysis software, carries out the processing of the collected data, recognizes the type of partial discharge, and judges the discharge intensity. The data transmission between the sensor and the detection instrument main unit in the system is achieved through a wireless network. The system is easier for arrangement, is more convenient for measurement, can effectively achieve the electrical isolation, and is higher in safety.

Description

technical field [0001] The invention relates to the technical field of discharge detection devices, in particular to a GIS ultra-high frequency partial discharge on-line monitoring system. Background technique [0002] The dielectric strength and breakdown field strength of power equipment insulators are very high. When partial discharge occurs in a small range, the breakdown process is very fast, which will generate a very steep pulse current and excite electromagnetic waves with a frequency up to several GHz. The basic principle of UHF detection is to use UHF sensors to detect UHF signals generated during partial discharge in power equipment, so as to obtain relevant information about partial discharge and realize partial discharge monitoring. [0003] UHF partial discharge detector generally consists of the following parts: UHF sensor, detection instrument host and analysis host (laptop computer). In the process of use, it is found that the traditional GIS UHF test metho...

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Application Information

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IPC IPC(8): G01R31/12
CPCG01R31/1254
Inventor 柴天龙高振府周明谷雨马静王倩季鹏程翟云飞郝翔宇高起山王海滨金峰郭广森徐春堂王朝阳周晓辰朱桂东
Owner STATE GRID CORP OF CHINA
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