Wireless temperature measurement system and method for low-voltage switch cabinet

Abstract

The invention relates to a wireless temperature measurement system and method, especially a wireless temperature measurement system and method for a low-voltage switch cabinet, and belongs to the field of electrical technology. A low-voltage bus temperature measurement system collects temperature of all places in real time through wireless temperature measurement modules which are distributed at a low-voltage distribution cabinet bus, a power cable connection point, and a vertical bus connection points, and enables the collected temperature values to be transmitted to a data receiver in a mode of wireless high-frequency carrier. The data receiver carries out the frequency modulation, detection and amplification of a received wireless signal, and provides stable output. The data is transmitted to an upper computer through a communication bus, and detection analysis software will display the temperature of all points in real time, draws a temperature change curve, and generates various types of statistical forms. The system and method are advantageous in that the system and method obtain the internal temperature condition of a low-voltage distribution cabinet, avoid the interference from environment factors, and can effectively prevent an electrical fire accident.

Description

technical field [0001] The invention relates to a wireless temperature measuring system and a temperature measuring method, in particular to a wireless temperature measuring system and a temperature measuring method of a low-voltage switch cabinet, belonging to the field of electric technology. Background technique [0002] During the long-term operation of the low-voltage switchgear, the connection points of the bus bar and the power cable contacts are abnormally exothermic due to aging, oxidation, or excessive contact resistance. In the environment, the heating parts on the bus cannot be detected in a timely, effective and convenient manner. If this situation is left unattended, it may eventually lead to serious consequences such as busbar fusion welding, explosion of low-voltage cabinets, and even electrical fires, resulting in huge personal casualties and property loss. In view of the above situation, the following temperature measurement methods are currently used to s...

AI Technical Summary

Problems solved by technology

Infrared temperature measurement is easily affected by environmental factors (ambient temperature, dust in the air, etc.), and it also has a greater impact on temperature readings on bright or polished metal surfaces

Optical fiber temperature measurement can effectively avoid the interference of environmental factors, but the cost of optical fiber temperature measurement system is high, and it is very inconvenient to lay in low-voltage power distribution cabinets

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