Switch cabinet temperature measurement control and adjustment device

Abstract

The invention discloses a switch cabinet temperature measurement control and adjustment device, which comprises a central control processor. The central control processor is respectively connected with an alarming circuit, a relay control circuit, an address encoder, an outer display screen, an air conditioning system, a temperature sensor and a temperature collector, and the temperature collector is connected with the contact temperature sensor. According to the switch cabinet temperature measurement control and adjustment device, the structure is simple; temperature of each joint and each contact can be monitored in real time; real-time temperature exceeding alarming is carried out; temperature of joints and contacts inside the switch cabinet or a ring main unit and the like can be monitored in real time; temperature rise conditions of the joints and the contacts are known; temperature inside the cabinet can be adjusted reasonably; the temperature condition of each contact can be known clearly; and in the case of over high temperature, circuit conditions can be quickly controlled, and accidents such as the damaged switch cabinet contact and large-area power failure caused as the joints or the contacts are over heated can be prevented from happening.

Description

technical field [0001] The invention relates to a temperature measuring and regulating device, in particular to a temperature measuring and controlling regulating device for a switch cabinet. Background technique [0002] With the upgrading of power equipment, most of the power plants and substations currently adopt the power transmission method of fully enclosed switch cabinets. The closed switch cabinets cannot be opened during operation, so it is impossible to measure the actual conditions of the joints and contacts in the cabinet during operation. temperature. Contact heating accidents in sealed switchgear have an increasing trend in recent years, and have become a problem that seriously affects safety production. Important equipment such as high-voltage switchgear operates in a complex environment for a long time, and the live contacts inside the equipment are easy to loosen and oxidize. In the case of overload operation and poor installation, the surface contact resis...

AI Technical Summary

Problems solved by technology

[0002] With the upgrading of power equipment, most of the power plants and substations currently adopt the power transmission method of fully enclosed switch cabinets. The closed switch cabinets cannot be opened during operation, so it is impossible to measure the actual conditions of the joints and contacts in the cabinet during operation. temperature

Contact heating accidents in sealed switchgear have an increasing trend in recent years, and have become a problem that seriously affects safety production

Important equipment such as high-voltage switchgear operates in a complex environment for a long time, and the live contacts inside the equipment are easy to loosen and oxidize. In the case of overload operation or poor installation, the surface contact resistance will gradually increase. When the load current flows, The temperature of the contacts will rise, or even burn out, causing large-scale power outages, which poses a great safety hazard

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