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Lightning arrester internal monitoring method and system

A monitoring system and lightning arrester technology, applied in the field of power supply, can solve the problems such as self-energy extraction of the arrester

Pending Publication Date: 2021-01-12
XIANYANG POWER SUPPLY CO STATE GRID SHAANXI ELECTRIC POWER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a lightning arrester internal monitoring method and system to solve the problem of lightning arrester self-capturing and comprehensive monitoring for the deficiencies in the above-mentioned prior art

Method used

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  • Lightning arrester internal monitoring method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]10kV built-in arrester monitoring system

[0050]The varistor voltage of the electrovalve 1 is 1kV, and the flow is 5kA;

[0051]The measurement module 2 includes a small current measurement module and a lightning counting module.

[0052]The steady-state working input current of the power module 3 is 0~3mA, and the DC output is 5V.

[0053]The sensor 4 includes temperature, humidity and air pressure sensors.

[0054]The single-chip microcomputer and communication module 5 include MSP430 single-chip microcomputer and peripheral circuits, and NBIOT communication module.

[0055]The server 6 is the integrated automation system server in the substation.

[0056]Parts 1 to 5 of this 10kV line built-in arrester monitoring system are installed in the 10kV arrester cavity, which can measure the leakage current, operation information, internal temperature, humidity and air pressure data of the 10kV arrester and send it to the station automation system, and supply power independently through the leakage cu...

Embodiment 2

[0058]35kV built-in arrester monitoring system

[0059]The varistor voltage of the electrovalve 1 is 3kV, and the current is 10kA;

[0060]The measurement module 2 includes a small current measurement module and a lightning counting module.

[0061]The steady state working input current of the power module 3 is 0~5mA, and the DC output is 3.3V.

[0062]The sensor 4 includes temperature, humidity and air pressure sensors.

[0063]The single-chip microcomputer and communication module 5 include STM32 single-chip microcomputer and peripheral circuits, and 4G communication module.

[0064]Server 6 is a cloud server.

[0065]Parts 1 to 5 of this 35kV line built-in arrester monitoring system are installed in the 35kV arrester cavity, which can measure the 35kV arrester leakage current, operation information, internal temperature, humidity, and air pressure data and send it to the cloud server, and use the leakage current to supply power autonomously. Online monitoring, power acquisition and communication inte...

Embodiment 3

[0067]110kV built-in arrester monitoring system

[0068]The varistor voltage of the electrovalve 1 is 3kV, and the flow is 20kA;

[0069]The measurement module 2 includes a small current measurement module and a lightning counting module.

[0070]The steady state working input current of the power module 3 is 0-10mA, and the DC output is 12V.

[0071]The sensor 4 includes temperature, humidity and air pressure sensors.

[0072]The single-chip microcomputer and communication module 5 include MSP430 single-chip microcomputer and peripheral circuits, and a 5G communication module.

[0073]Server 6 is a cloud server.

[0074]Parts 1 to 5 of this 35kV line built-in arrester monitoring system are installed in the 35kV arrester cavity, which can measure the 35kV arrester leakage current, operation information, internal temperature, humidity, and air pressure data and send it to the cloud server, and use the leakage current to supply power autonomously. Online monitoring, power acquisition and communication int...

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Abstract

The invention discloses a lightning arrester internal monitoring method and system, and the method comprises the steps: collecting a leakage current in a lightning arrester through an electricity taking valve plate, outputting the leakage current to an electricity taking module, wherein the electricity taking module intermittently supplies power to a lightning arrester monitoring system; a measurement module measures the leakage current of the lightning arrester, and sends a lightning stroke trigger signal to the power taking module and the single-chip microcomputer when the lightning arresterpasses through the impact current to trigger the power taking module to supply power, and the single-chip microcomputer records the lightning stroke action; the sensor measures information such as temperature, humidity and air pressure in the lightning arrester cavity; the single-chip microcomputer and the communication module acquire data of the measurement module and the sensor and remotely transmit the data to the server; the server displays leakage current, lightning stroke action records, temperature, humidity and air pressure information of the lightning arrester through the acquired data and analyzes the state of the lightning arrester. According to the invention, the lightning arrester leakage current, the resistive component, the action frequency, the internal temperature and humidity and the air pressure data can be automatically acquired through the lightning arrester leakage current, the whole set of device can be integrated in the lightning arrester cavity, and the integration of the lightning arrester, monitoring and power acquisition is realized.

Description

Technical field[0001]The invention belongs to the technical field of power supplies, and specifically relates to an internal monitoring method and system for a lightning arrester.Background technique[0002]With the construction of the Energy Internet, the demand for various smart terminals continues to expand. At present, hundreds of millions of smart meters and other monitors have been connected to the power grid. In the future, the number of smart terminals that will be equipped in the power grid will be several times greater. There is an urgent need for online monitoring of arresters in the energy Internet. The arresters may increase the leakage current of the arresters due to poor sealing, aging of the valve, and further overheat the valve, which may cause accidents such as the explosion of the arrester, affecting the reliability of the power supply of the power system, and threaten Operators are safe, so online monitoring of arresters is an important part of building the energy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/52G01R19/17G01D21/02
CPCG01R31/52G01R19/17G01D21/02
Inventor 陈溪王鸿范智隆王刚峰王宝乐李庚周梁薛枫赵兴耀赵江杨磊王强刘晓娟杨兰均黄易之刘帅史宇昊
Owner XIANYANG POWER SUPPLY CO STATE GRID SHAANXI ELECTRIC POWER CO LTD
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