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On-site assessment system for partial discharge sensor

A technology for evaluating systems and sensors, applied in instruments, measuring devices, measuring electrical variables, etc., and can solve problems such as lack of detection methods

Active Publication Date: 2016-01-27
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the performance verification of GIS built-in sensors, there is a lack of detection methods

Method used

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  • On-site assessment system for partial discharge sensor
  • On-site assessment system for partial discharge sensor
  • On-site assessment system for partial discharge sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] The present invention will be further described below in conjunction with the accompanying drawings.

[0048] Such as figure 1 As shown, an on-site evaluation system for partial discharge sensors includes a signal generation module 1 , a substation GIS device 2 , a signal acquisition module 3 , a safety detection module 4 , a wireless transceiver module 5 and a data processing server 6 .

[0049] The signal generation module 1 is connected with the substation GIS equipment 2, the signal generation module 1 generates a UHF pulse signal (300MHz-3GHz) and injects the pulse signal into the substation GIS equipment, and the frequency and amplitude of the UHF pulse signal are determined by the data processing server 6. Issue command control through the wireless transceiver module 5;

[0050] Substation GIS equipment 2 has a built-in UHF sensor (300MHz-3GHz), which is the object to be evaluated;

[0051] The signal collection module 3 is used to collect and receive the UHF s...

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PUM

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Abstract

The invention discloses an on-site assessment system for a partial discharge sensor, and the system comprises a signal generation module, transformer station GIS equipment, a signal collection module, a safety detection module, a wireless receiving and transmitting module, and a data processing server. The signal generation module is connected with the transformer station GIS equipment, and generates an ultrahigh frequency pulse signal which is injected into the transformer station GIS equipment. The generation frequency and amplitude of the ultrahigh frequency pulse signal are controlled by the data processing server through employing the wireless receiving and transmitting module to send instructions. The system can simulate different partial discharge signal models through the signal generation module, injects signal into the GIS, receives the signals through an ultrahigh frequency sensor, compares results with model signals of the signal generation module, estimates the performance of a built-in sensor in the GIS, can achieve the detection of the safety of the built-in sensor, and enables the detection results to be transmitted to the data processing server in a wireless manner.

Description

technical field [0001] The invention relates to a device in the technical field of power systems, in particular to an on-site evaluation system for partial discharge sensors. Background technique [0002] GIS is an important equipment commonly used in power systems. Partial discharge will occur when there is an insulation defect in the GIS part. The insulation state of the switchgear can be effectively judged through the detection of partial discharge. Effective detection of partial discharge is of great importance to ensure the safe and stable operation of GIS. Significance. [0003] The partial discharge phenomenon caused by insulation defects in GIS mainly includes four types: corona defect discharge, air gap defect discharge, suspended electrode defect discharge and particle defect discharge. The partial discharge pulse wave has a strong correlation with the phase of the power frequency power supply , for example: most of the partial discharge pulses of corona defect di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 卞超孙毅王荣甘强
Owner STATE GRID CORP OF CHINA
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