High-voltage switch cabinet wireless temperature measuring system

Abstract

The invention discloses a high-voltage switch cabinet wireless temperature measuring system which comprises a temperature monitoring and early warning workstation, a temperature measuring communication terminal and a plurality of wireless temperature sensors. The temperature monitoring and early warning workstation comprises a management computer and a database. The management computer is connected with the temperature measuring communication terminal through the Ethernet, the wireless temperature sensors and the temperature measuring communication terminal are packaged in a grounding type shielding mode so that anti-electromagnetic interference can be achieved, the 915.00MHz operation frequency based on ISM is applied to wireless data connection so that hurt to the human body and electromagnetic interference in surrounding devices can be avoided, the problem that at the high-voltage, large-current, strong-electromagnetic-interference and high-sealing states, a common sensor can change the creep distance of an electrical device can be effectively solved, the purposes that a high-voltage electrical device is accurately detected online in real time and especially the problem that the hidden danger of overheating exists in each connector position is solved can be effectively achieved, and therefore the application prospect is good.

Description

technical field [0001] The invention belongs to the technical field of smart grids, in particular to a wireless temperature measurement system for a high-voltage switch cabinet. Background technique [0002] At present, due to the airtightness of the high-voltage switchgear, the conductive busbar connectors in the cabinet, the dynamic and static contacts of the circuit breaker, the isolating switch, the wiring pile of the cable terminal head and other equipment have the characteristics of exposed high voltage, closed position, narrow space, etc. Therefore, problems such as surface oxidation and corrosion of electrical connectors, loosening of fastening bolts, and aging of contacts and busbar connections that often occur during operation cannot be found in time. The traditional methods for monitoring the temperature rise of the weak point of the electrical connection exceed the standard include: temperature test wax sheet method, temperature recording label method, infrared i...

AI Technical Summary

Problems solved by technology

The temperature test wax film method requires the on-duty personnel to inspect all the temperature test plates at regular intervals, and deal with them in a timely manner if they are found to be melted. If the temperature test plates are not found to be heated and melted due to negligence, there will be hidden dangers of accidents; the temperature recording label method is small in size , The price is low, and the disadvantage is that it cannot reflect the real-time temperature value and requires manual regular inspections; the infrared thermal imager is intuitive to measure the temperature, but it cannot measure the heating of the internal equipment through the switch cabinet door; the optical fiber temperature measurement method is used in high-voltage and high-current high-voltage switches Cabinet, it is easier to cause creepage phenomenon and cause undue accidents

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