Lightning arrester operation analog simulation system

Abstract

The invention provides a lightning arrester operation analog simulation system. The lightning arrester operation analog simulation system mainly comprises a data processing center, a data interactive processing interface module, a human-computer interface, an optical fiber data communication module, a power supply control measurement module, a harmonic wave power module, a power frequency high-voltage power module, a voltage divider, a high-voltage lightning arrester, a temperature and humidity measuring module, a lightning arrester resistive current precision measurement module and a SO2 environmental testing module. The data processing center, the human-computer interface and the data interactive processing interface module perform operation through a computing control platform, a host machine of the computing control platform is an industrial control computer and is provided with an optical fiber conversion module, and the host machine of the computing control platform is respectively connected with the power supply control measurement module, the lightning arrester resistive current precision measurement module and the SO2 environmental testing module through the optical fiber conversion module. In functional roles, the system can simulate joint effects of double factors including an electrical characteristic and a natural environment to simulate operation condition of an actual electric power system lightning arrester.

Description

technical field [0001] The invention relates to the field of power system test simulation, in particular to a lightning arrester operation simulation test system. Background technique [0002] As an important overvoltage protection device in the power system, the arrester's safe operation is crucial to the safe operation of the power equipment and even the entire high-voltage system. In normal operation, the valve plate is affected by the operating voltage of the power system for a long time, as well as internal damp or overheating and other factors, which will cause the deterioration of the non-linear resistance characteristics of the valve plate. This deterioration is mainly manifested in the increase of resistive current under normal voltage, the increase of resistive current leads to the increase of calorific value, the temperature inside the arrester rises, and the temperature rise accelerates the aging of the valve plate, forming a vicious circle, and finally leads to ...

AI Technical Summary

Problems solved by technology

In normal operation, the valve plate is affected by the operating voltage of the power system for a long time, as well as internal moisture or overheating, which will cause the deterioration of the non-linear resistance characteristics of the valve plate

This deterioration is mainly manifested in the increase of resistive current under normal voltage, the increase of resistive current leads to the increase of calorific value, the temperature inside the arrester rises, and the temperature rise accelerates the aging of the valve plate, forming a vicious circle, and finally leads to the zinc oxide arrester due to Damage due to overheating may cause the arrester to explode in severe cases, causing large-scale power outages, resulting in serious economic losses

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