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System for monitoring high voltage switch cabinet partial discharge online

A high-voltage switchgear, partial discharge technology, applied in the direction of testing dielectric strength, testing using acoustic measurement, testing using optical methods, etc., can solve the problem of switchgear insulation failure threatening the safe operation of the power system, affecting life, production and even society Stability, equipment damage and other problems, to achieve the effect of high sensitivity and anti-interference ability, low false alarm rate, real-time remote monitoring

Inactive Publication Date: 2018-02-23
WUXI 720 DEGREE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operating state of the switchgear has a major impact on the reliability of the power supply of the power system. The consequences of the occurrence of the fault are very serious. The direct harm is the damage to the lines and equipment protected by the equipment, and the indirect harm caused by the loss of power will cause users Large-scale power outages affect normal life, production and even social stability
At present, switchgears are more and more widely used in power systems, and the insufficiency of on-site test methods for switchgears and the insulation failure of switchgears in operation seriously threaten the safe operation of power systems.

Method used

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  • System for monitoring high voltage switch cabinet partial discharge online

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0021] Such as figure 1 As shown, a system for on-line partial discharge monitoring of high-voltage switchgear, including ZigBee sensor nodes, wireless communication modules and host computer monitoring modules, ZigBee sensor nodes include ultrasonic sensor modules, ultrasonic signal conditioning modules, ultra-high frequency sensor modules, UHF signal conditioning module, ultraviolet sensing and conditioning module and processor, ultrasonic signal conditioning unit includes amplifier circuit, filter circuit and A / D conversion circuit, ultraviolet sensing and conditioning module includes ultraviolet photoelectric conversion unit, high voltage drive unit, I / U conversion unit, pulse amplification unit and pulse discrimination unit; wherein,

[0022] The ultrasonic sensor module, amplifier circuit, filter circuit, A / D conversion circuit and processor...

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Abstract

The invention discloses a system for monitoring a high voltage switch cabinet particle discharge online. The system for monitoring a high voltage switch cabinet partial discharge online comprises a ZigBee sensor node, a wireless communication module and an upper computer monitoring module. The ZigBee sensor node comprises an ultrasonic sensor module, an ultrasonic signal conditioning module, an ultrahigh frequency sensor module, an ultrahigh frequency signal conditioning module, an ultraviolet ray sensing and conditioning module and a sensor. The ultrasonic wave signal conditioning unit comprises an amplification circuit, a filtering circuit and an A / D conversion circuit. The ultraviolet ray sensing and conditioning module comprises an UV photoelectric conversion unit, a high voltage driving unit, a I / U conversion unit, a pulse amplification unit and a pulse discrimination unit. The system for monitoring high voltage switch cabinet partial discharge online can perform comprehensive andreal-time monitoring on the switch cabinet and is low in cost, low in false alarm rate and easy to install.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a system for on-line monitoring of partial discharge of a high-voltage switchgear. Background technique [0002] With the development of the national economy and the support of relevant industrial policies for the power industry, the power industry has become an important pillar to ensure the operation of the national economy. With the development of the power industry, the requirements for the stability and reliability of power system operation are getting higher and higher, and the disadvantages of ordinary power grids are gradually exposed. Therefore, in the case of traditional grid operation problems, smart grid is entering people's field of vision, and has gradually become the main force of modern urban grid transmission. The smart grid is derived from the fusion of modern advanced technologies, such as intelligent decision-making technology, integration technology, mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1209G01R31/1218
Inventor 杨楠王升鑫
Owner WUXI 720 DEGREE TECH CO LTD
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