Novel intelligent lightning arrester monitoring device

Abstract

The invention discloses a novel intelligent lightning arrester monitoring device which is used for being matched with a lightning arrester device to realize a function of monitoring a lightning arrester. The novel intelligent lightning arrester monitoring device comprises an energy obtaining device, a singechip control unit, a hardware clock unit and a data storage unit, wherein the energy obtaining device is arranged on a lightning arresting device and is used for obtaining electric energy form a power transmission line; the hardware clock unit and the data storage unit are connected with corresponding ports of the singe chip microcomputer control unit respectively; an energy obtaining coil can be used for providing the obtained electric energy to the singechip control unit. According to the novel intelligent lightning arrester monitoring device, the condition of whether a lightning conductor of the power transmission line or a building is subjected to lightning stroke or not and the frequency of being subjected to the lightning stroke can be monitored continuously; a special triggering circuit is not needed; the novel intelligent lightning arrester monitoring device has the characteristics of high precision, simple structure, small volume, low cost, high safety and the like.

Description

technical field [0001] The invention relates to the technical field of substation overvoltage recording, in particular to an arrester action recording detection system. Specifically, it can be applied to the real-time monitoring of the number and time of lightning strikes of lightning arresters in substations. Background technique [0002] With the development of the national economy, the voltage level and scale of the power system develop and expand rapidly, and higher requirements are placed on the reliability and safety of the power system operation. Therefore, the failure rate must be reduced. The function of the arrester is to release the charge of the grid to the ground grid through the action of the arrester, thereby suppressing the overvoltage of the grid and ensuring the safety of power transmission and transformation equipment. A new type of intelligent arrester monitoring device can record the action of the arrester, which is convenient for the understanding of o...

AI Technical Summary

Problems solved by technology

The traditional surge arrester monitoring device can only reflect the number of arrester actions under the action of overvoltage. After multiple arrester actions, the recorded number of times will overflow or return to zero and recount. It is impossible to obtain accurate arrester action times, and the arrester action time cannot be recorded.

Utility model 200720173616.4 "a lightning current detection device" solves the problem of detecting whether the lightning arrester is struck by lightning. Additional power supply required

The utility model 98228178.1 "Lightning Counter" introduces a lightning counter composed of a current sensing device, a signal processing circuit and an electromagnetic counter. Although the device has a simple structure, does not need a power supply, and is safe, fast and accurate, it is greatly affected by electromagnetic interference. , and the placement position will interfere with the magnetic field of the device itself, affecting the measurement accuracy

Chinese invention patent 201010246956.1 "An automatic continuous test device for lightning strike counter" realizes automatic continuous detection of the number of lightning strikes, saving time and labor costs, but the energy supply part needs to use high-voltage and low-voltage power supplies, The power supply needs to be tested regularly. When the power supply is insufficient, this method will be greatly limited, and long-term real-time detection cannot be performed.

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