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Live detection device applied to lightning arrester with discharge gap and control method

A live detection and discharge gap technology, which is applied in the field of arrester monitoring, can solve the problems of lack of detection and achieve the effects of improving work efficiency, avoiding wiring methods, and ensuring reliability and accuracy

Active Publication Date: 2022-04-01
MAANSHAN POWER SUPPLY COMPANY STATE GRID ANHUI ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the deficiencies of the prior art, the present invention provides a live detection device and control method applied to arresters with discharge gaps, which solves the problem that current live detection tools are mainly aimed at arresters with online monitors containing arresters. The monitor is connected to the lightning arrester of the discharge gap, and there is still a lack of effective detection problems

Method used

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  • Live detection device applied to lightning arrester with discharge gap and control method
  • Live detection device applied to lightning arrester with discharge gap and control method
  • Live detection device applied to lightning arrester with discharge gap and control method

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Embodiment 1

[0041] Embodiment 1: realize the most basic structure of device function of the present invention

[0042] A lightning arrester electrification detection device applied to a discharge gap, comprising a surge arrester electrification detection device and a lightning arrester, the arrester electrification detection device includes a phase A data acquisition device, a B phase data acquisition device, a C phase data acquisition device and a display device, and a phase A data acquisition device The acquisition device, B-phase data acquisition device, and C-phase data acquisition device all include a sampling circuit, a single-chip microcomputer main control unit, a clock module circuit, a multi-voltage output circuit, a digital power amplifier circuit, and a communication module;

[0043] The output end of the digital power amplifier circuit is connected with the low voltage end of the lightning arrester and the upper end of the discharge gap, the input end of the digital power ampl...

Embodiment 2

[0045] Embodiment 2: A selection of communication modules

[0046] The difference from Embodiment 1 is that the communication module is a Bluetooth module.

Embodiment 3

[0047] Embodiment 3: A type selection of clock module circuit

[0048] The difference from Embodiment 1 is that the clock module circuit is a Beidou timing module circuit.

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Abstract

The invention discloses a live detection device applied to a lightning arrester with a discharge gap and a control method, and relates to the technical field of lightning arrester monitoring. According to the live detection device applied to the lightning arrester with the discharge gap and the control method, accurate time service triggering is carried out through the Beidou time service module circuit, total current data of the ABC three-phase lightning arrester are synchronously collected, accurate time service triggering is carried out through the Beidou time service module circuit again, the digital power amplifier circuit is started, and the discharge gap is detected. High-frequency alternating-current voltage is injected from the discharge gap for multiple times, the ground potential of the lightning arrester is raised, disturbance is applied to capacitive current, data acquisition is carried out on total current, Fourier transform is carried out on multiple groups of total current data, and the total current is acquired; lightning arrester operation data such as full voltage, full current, resistive current, third harmonic, fifth harmonic, seventh harmonic, power and phase angle difference of the ABC three-phase lightning arrester are obtained, and full-state live detection of the lightning arrester with the discharge gap is achieved.

Description

technical field [0001] The invention relates to the technical field of lightning arrester monitoring, in particular to a live detection device and control method applied to lightning arresters with discharge gaps. Background technique [0002] Surge arrester is an important overvoltage protection electrical appliance. Its performance not only plays a vital role in the safe operation of electrical equipment, but also has great influence on the economic benefits of the power system, especially the economic benefits of the construction of high-voltage transmission systems. significant impact. [0003] In order to reduce electrical accidents caused by factors such as aging and dampness of the arrester, it is necessary to carry out unscheduled live detection work on the arrester. At present, the live detection tools in China are mainly aimed at arresters with online monitors for arresters. There is still a lack of effective detection devices for arresters with discharge gaps ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R23/16G01R25/00
Inventor 何涛阮兆文张忠张宇王玉燕杨冬叶汉新
Owner MAANSHAN POWER SUPPLY COMPANY STATE GRID ANHUI ELECTRIC POWER
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