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Arrester on-line monitoring system

A monitoring system and lightning arrester technology, applied in the monitoring field, can solve problems such as low maintenance efficiency, achieve the effects of reducing equipment damage rate, improving maintenance efficiency, and improving power supply reliability

Inactive Publication Date: 2015-06-17
CHENGDU FUYANG TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides an on-line monitoring system for lightning arresters to solve the problem of low maintenance efficiency in the detection of traditional lightning arresters in the above-mentioned background technology, which generally relies on power supply duty maintenance personnel to find the grounding point of the phase line before performing maintenance.

Method used

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Embodiment

[0027] This embodiment includes: arrester unit ( figure 2 ), voltage and current online detection unit ( image 3 ), main control unit ( Figure 4 ), wireless transmitter unit ( Figure 5 ).

[0028] figure 1 Wherein, the lightning arrester unit is connected with the voltage and current online detection unit, the voltage and current online detection unit is connected with the main control unit, and the main control unit is connected with the wireless transmission unit.

[0029] figure 2 Among them, the lightning arrester unit includes expansion interface J1, capacitor C1, resistance R1, lightning protection tube D1, lightning protection tube D2, lightning protection tube D3, lightning protection tube D4, pin 1 of the expansion interface J1 is connected to one end of capacitor C1, and resistor R1 One end of the detonator, the anode of the detonator D1, the anode of the detonator D2, the anode of the detonator D4 and grounded, the pin 2 of the expansion interface J1 is co...

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Abstract

The invention belongs to the field of monitoring technologies and particularly relates to an arrester on-line monitoring system. The arrester on-line monitoring system comprises an arrester unit, a voltage and current on-line detection unit, a main control unit and a wireless emitter unit. The arrester unit is connected with the voltage and current on-line detection unit which is connected with the main control unit. The main control unit is connected with the wireless emitter unit. Current and voltage signals in the arrester unit are detected out through a current sensor and a voltage sensor, the signals are compared with a reference source phase difference through a comparison amplifier, comparative data are transmitted to the main control module and then transmitted through an antenna in the wireless emitter unit, and remote data transmission is realized, so that defects inside the arrester are effectively detected in time, and maintainers on duty realize remote maintenance without looking for phase line earth points. The maintenance time is largely shortened, the maintenance efficiency is improved, power supplied to users is not effected, power supply reliability is greatly improved, and the equipment damage rate is reduced.

Description

technical field [0001] The invention belongs to the technical field of monitoring, in particular to an online monitoring system for lightning arresters. Background technique [0002] Surge arrester is an important primary equipment in power production in the power industry. Its main function in substations (boosting and stepping down stations) and lines is to protect other equipment from lightning overvoltage and system surge overvoltage. Since the 1980s, metal oxide (ZnO) surge arresters (MOA) have gradually replaced SiC surge arresters. Due to the good volt-ampere characteristics of metal oxide surge arresters, the protection level of major equipment in power production has made a qualitative leap. . With the popularization of MOA, its operation status has been paid more and more attention by the industry. [0003] Chinese Patent Publication No. CN 103762577A, published on April 30, 2014, discloses a communication line lightning protection device, which is characterized ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R19/00G08C17/02
Inventor 车国容
Owner CHENGDU FUYANG TECH DEV
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