Electric high voltage switch cabinet thermal fault thermal imaging wireless remote control alarm device and application method

Abstract

The invention relates to an electric high voltage switch cabinet thermal fault thermal imaging wireless remote control alarm device and an application method. The alarm device comprises an electric high voltage switch cabinet, an infrared thermal imaging device, a wireless sending device, a wireless reception device and an intelligent thermal imaging alarm device, wherein the electric high voltage switch cabinet is internally equipped with electric high voltage equipment, the infrared thermal imaging device comprises an infrared thermal imaging camera arranged in an electric high voltage switch cabinet casing, an infrared thermal imaging processing arranged in a transformer station main control room and an infrared thermal imaging display, the infrared thermal imaging camera is connected with the wireless sending device through fiber, the infrared thermal imaging processor and the infrared thermal imaging display are connected with the wireless reception device through fiber, and the intelligent thermal imaging alarm device comprises a controller connected with the infrared thermal imaging processor and an alarm device connected with the controller. According to the alarm device, infrared thermal fault detection on the electric high voltage equipment in the electric high voltage switch cabinet is realized through infrared thermal imaging, and working staff are timely prompted to adopt preventive measures.

Description

technical field [0001] The invention relates to on-line temperature monitoring and overheat alarm of electric high-voltage equipment in electric high-voltage switchgear, in particular to a thermal imaging wireless remote-control alarm for thermal failure of electric high-voltage switchgear and an application method. Background technique [0002] Most of the substations in the existing power system are unattended substations, which are generally far away from the manned main control room, and many are even hundreds of kilometers away. Circuit breakers, transformers, lightning arresters, isolating switches, high-voltage leads, busbars and other power high-voltage equipment in unattended substation power high-voltage switchgears will generate heat due to the action of electricity and magnetism, especially when the load increases and contacts Not good, or when the equipment is overheated, the heat will rise sharply. Since the switch cabinet is a small and closed space, the heat ...

AI Technical Summary

Problems solved by technology

Circuit breakers, transformers, lightning arresters, isolating switches, high-voltage leads, busbars and other power high-voltage equipment in unattended substation power high-voltage switchgears will generate heat due to the action of electricity and magnetism, especially when the load increases and contacts Not good, or when the equipment is overheated, the heat will rise sharply. Since the switch cabinet is a small and closed space, the heat dissipation conditions are poor. If it is not found and dealt with in time, it will lead to overheating of the power high-voltage equipment in the power high-voltage switch cabinet A serious accident that aggravates the failure, even causes the equipment to be burned, and seriously affects the safe operation of the power grid

[0003] The overheating monitoring of the power high-voltage equipment in the power high-voltage switchgear of the unattended substation, one is to regularly send people to send cars to the outside of the power high-voltage switchgear of the unattended substation to visually inspect for damage and listen for discharge sounds. The power high-voltage switchgear is switched to the maintenance state after power failure, and then the DC resistance test is carried out on the high-voltage power equipment in the cabinet. This is because the high-voltage power equipment in the switchgear is sealed and operated at high voltage, and it is strictly forbidden to open the cabinet door during operation. For the overheating monitoring of the power equipment in the high-voltage switchgear of the unattended substation in a remote place, there is no effective online continuous online real-time monitoring and alarm device so far

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