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Intelligent GIS partial discharge IED test loop and method

A test circuit and partial discharge signal technology, applied in the direction of testing dielectric strength, etc., can solve the problems of partial discharge phase and partial discharge volume can not be adjusted, low partial discharge test voltage, low efficiency, etc., to improve the partial discharge test voltage, test The circuit is simple and the effect of improving test efficiency

Active Publication Date: 2017-09-15
XIAN HIGH VOLTAGE APP RES INST CO LTD
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an intelligent GIS partial discharge IED test circuit and method, which solves the problems of large differences in test results, low partial discharge test voltage, and inability to adjust the partial discharge phase and partial discharge amount when performing the intelligent GIS partial discharge IED test. , low efficiency and environmental pollution

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0027] The invention adds a hand-window type discharge gap to the designed new intelligent GIS partial discharge IED test circuit, and uses a partial discharge signal generator to generate a partial discharge signal for the detection of the partial discharge IED probe. At the same time, the calibrated partial discharge The measuring system measures this partial discharge, and then compares the two measured values.

[0028] Specifically, such as figure 1 As shown, the intelligent GIS partial discharge IED test circuit includes a hand-window type discharge gap (signal transmitting end), a partial discharge signal generator, a partial discharge IED probe, and a coupling capacitor C k , coupling device CD, laboratory calibrated partial discharge measurement system MI, test power supply U an...

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Abstract

The invention discloses an intelligent GIS partial discharge IED test loop and method, and the test loop comprises a partial discharge signal generator, a partial discharge IED probe, a coupling capacitor Ck, a coupling device CD, a partial discharge measurement system MI, and a test power supply U. The high-voltage end of the test power supply U is connected with the coupling capacitor Ck and the coupling device CD, and the other end of the coupling device CD is connected with the lower end of the test power supply U and is also grounded. The partial discharge measurement system MI is connected with the coupling device CD. The high-voltage end of the test power supply U is connected with one end of a bus passing through a GIS housing, and the GIS hosing is grounded. The partial discharge IED probe stretches into the GIS housing, and a signal transmitting end of the partial discharge signal generator stretches into the GIS housing, and is used for generating a partial discharge signal. The test loop is simple. Only if a hand-window type discharge gap is made on an intelligent GIS housing, can the test loop achieve the purposes of improving the partial discharge voltage, improving the testing efficiency and protecting the environment.

Description

technical field [0001] The invention belongs to the technical field of high voltage test, and relates to an intelligent GIS partial discharge IED test circuit and a method. Background technique [0002] Gas-insulated metal-enclosed switchgear (hereinafter referred to as: GIS) has the advantages of small footprint, all components are enclosed without interference from the external environment, reliable operation, long maintenance cycle, etc., and is very popular among users, but there are some problems at the same time: Due to the characteristics of compact structure, difficult disassembly, and difficult maintenance, it is difficult to locate the fault point when there is a fault inside the GIS, which further increases the difficulty of troubleshooting. Therefore, intelligent GIS came into being. [0003] The intelligent GIS partial discharge IED is mainly used to monitor the discharge defects of the intelligent GIS equipment, and conduct online monitoring and positioning of ...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 苏春强李强张弦王春杰邱凌伟
Owner XIAN HIGH VOLTAGE APP RES INST CO LTD
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