Partial discharge signal generator

A technology of discharge signal and generator, applied in the field of power system, can solve problems such as lack of inspection methods

Active Publication Date: 2015-04-22
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a lack of effective inspection methods for the test performance of these devices

Method used

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  • Partial discharge signal generator
  • Partial discharge signal generator
  • Partial discharge signal generator

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation will be described in detail below in conjunction with the accompanying drawings:

[0024] see figure 1 , the partial discharge signal generator of the present invention includes a keyboard 4, a photodiode D connected in sequence, a synchronous trigger circuit 1, a single-chip microcomputer 3, a signal generating circuit 2 and an output interface J.

[0025] The keyboard 4 is connected with the single-chip microcomputer 3 .

[0026] see again figure 2 The synchronous trigger circuit 1 includes a first power supply DVCC1, a first triode Q1, a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, wherein: The anode of the photodiode D is connected to the base of the first triode Q1 through the first capacitor C1, and the cathode of the photodiode D is gr...

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Abstract

The invention discloses a partial discharge signal generator which comprises a keyboard, a photosensitive diode, a synchronous trigger circuit, a single chip microcomputer, a signal generating circuit and an output interface. The photosensitive diode, the synchronous trigger circuit, the single chip microcomputer, the signal generating circuit and the output interface are sequentially connected with one another, and the keyboard is connected with the single chip microcomputer. The partial discharge signal generator has the advantages that signals which simulate four actual typical partial discharge types can be outputted, an ultrahigh-frequency partial discharge detecting device detects the partial discharge signals generated by the partial discharge signal generator to display detection results, and accordingly the test performance of the partial discharge detecting device can be judged.

Description

technical field [0001] The invention relates to a device in the technical field of electric power systems, in particular to a partial discharge signal generator for testing the test performance of ultra-high frequency detection equipment. Background technique [0002] The switchgear is an important equipment commonly used in the power system. When there is an insulation defect inside the switchgear, partial discharge will be generated. Through the detection of partial discharge, the insulation state of the switchgear can be effectively judged, and the effective detection of partial discharge is very important to ensure the safety and stability of the switchgear. Running is important. [0003] The partial discharge phenomenon caused by insulation defects in the switchgear mainly includes four types: corona defect discharge, air gap defect discharge, floating electrode defect discharge and particle defect discharge. The partial discharge pulse wave has a strong correlation wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/00
Inventor 薛明黄成军殷怡杰郭灿新
Owner STATE GRID CORP OF CHINA
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