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A Partial Discharge Monitoring System

A partial discharge monitoring and partial discharge technology, which is applied in the direction of testing dielectric strength, etc., can solve the problems of heavy maintenance workload and high installation cost of monitoring system, so as to improve utilization rate, reduce installation cost and maintenance workload, and reduce equipment investment. cost effect

Active Publication Date: 2016-06-01
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] However, for the partial discharge monitoring system composed of the above-mentioned partial discharge monitoring devices, due to the large number of local signal acquisition controllers contained in it, there must be problems with high installation costs and large maintenance workload of the monitoring system itself. disadvantages

Method used

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  • A Partial Discharge Monitoring System
  • A Partial Discharge Monitoring System
  • A Partial Discharge Monitoring System

Examples

Experimental program
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Embodiment 1

[0046] Based on Embodiment 1, Embodiment 2 of the present invention discloses yet another partial discharge monitoring system, so as to realize on-line monitoring of the partial discharge of the power system on the premise of reducing the installation cost and maintenance workload of the partial discharge monitoring system. monitoring, see figure 2 ,include:

[0047] Partial discharge sensing terminals 100 installed at each monitoring point of the power system, signal switches 200 equal in number to the partial discharge sensing terminals 100, signal acquisition controller 300, signal bus 401 and control bus 402; wherein the signal acquisition control The device 300 includes a dual-channel signal acquisition port, a signal control port and an output port;

[0048] Wherein, the output port is used to output the amplitude of the original partial discharge signal calculated by using the signal attenuation calculation formula; wherein, the original partial discharge signal is th...

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Abstract

The embodiment of the invention discloses a local discharge monitoring system. The local discharge monitoring system comprises local discharge sensing terminals, signal switches, a signal acquisition controller, a signal bus and a control bus, wherein the local discharge sensing terminals are mounted at each monitoring point of a power system; the quantity of the signal switches is equal to that of the local discharge sensing terminals; the signal acquisition controller comprises a double-channel signal acquisition port and a signal control port; the signal bus is connected with each local discharge sensing terminal and the double-channel signal acquisition port of the signal acquisition controller; the control bus is connected with each signal switch and the signal control port of the signal acquisition controller; and the signal control port outputs control signals for controlling alternating on and off of each signal switch. The local discharge monitoring system can monitor the local discharge condition of the power system in real time on the premise of reducing the mounting cost and the maintenance workload of the local discharge monitoring system.

Description

technical field [0001] The invention relates to the technical field of partial discharge monitoring, and more specifically, relates to a partial discharge monitoring system. Background technique [0002] It is an important means to ensure the reliable operation of the power system to use the partial discharge monitoring technology to monitor the partial discharge of the power system on-line, so as to perform maintenance in time when an insulation fault occurs at a certain monitoring point. [0003] In the prior art, by installing a set of independent partial discharge monitoring devices for each monitoring point in the power system, and manually summarizing the obtained monitoring data (that is, the collected partial discharge signals), it is possible to troubleshoot Obtain the partial discharge sources existing in the entire power system (that is, monitoring points with insulation faults); wherein the partial discharge monitoring device includes: a local signal detection te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
Inventor 杨雁吴高林王谦胡岳毕茂强汤林郝建曹灵钰江秀臣
Owner STATE GRID CORP OF CHINA
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