Intermittent servicing partial discharge online monitoring system

A partial discharge and monitoring system technology, which is applied in the direction of testing dielectric strength, can solve the problems of large power consumption and gap work, and achieve the effects of reducing power loss, increasing service life, and improving adaptability

Inactive Publication Date: 2015-03-04
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing partial discharge on-line monitoring system cannot work intermittently and consumes a lot of power

Method used

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  • Intermittent servicing partial discharge online monitoring system

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Embodiment Construction

[0013] Such as figure 1 As shown, the intermittent work partial discharge on-line monitoring system of the present invention includes on-site acquisition equipment and control center equipment; the on-site acquisition equipment includes power supply modules, on-site controllers, electronic switches, counters, partial discharge sensors, signal processing circuits and on-site wireless Transceiver module; the control center equipment includes central controller, memory, display, switch and central wireless transceiver module; the power output terminal of the power module is connected with the input terminal of the electronic switch, the power supply terminal of the field controller, the power supply terminal of the counter and the field The power supply end of the wireless transceiver module is connected; the control signal input end of the electronic switch is connected with the switch signal output port of the field controller, and the output end of the electronic switch is resp...

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Abstract

The invention provides an intermittent servicing partial discharge online monitoring system. The system comprises field acquisition equipment and control center equipment. The field acquisition equipment comprises a power module, a field controller, an electronic switch, a counter, a partial discharge sensor, a signal processing circuit and a field wireless transmission and receiving module. The control center equipment comprises a central controller, a memorizer, a displayer, a switching switch and a central wireless transmission and receiving module. By means of the system, cable partial discharge can be monitored remotely in an intermittent mode, the system is long in service life, low in power consumption and provided with good market application prospects.

Description

technical field [0001] The invention relates to an on-line monitoring system, in particular to a system for on-line monitoring of partial discharge. Background technique [0002] Under the action of an electric field, the electrical discharge phenomenon in which only a part of the insulation between conductors is broken down (without passing through the conductors to which the voltage is applied) is called partial discharge. High-voltage power cables run with electricity for a long time, resulting in aging and degradation of insulation performance, thus causing partial discharge. If it is not detected in time, it will lead to complete breakdown of the insulation and cause serious accidents. Therefore, it is necessary to monitor the partial discharge state of the cable in real time. [0003] At present, the existing on-line partial discharge monitoring system for high-voltage cables is either continuously working or continuously dormant, and cannot work intermittently when u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 沈培锋王光明肖传强罗任飞
Owner STATE GRID CORP OF CHINA
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