Electric power high-voltage cable connector non-contact infrared temperature measurement system and temperature measurement method

Abstract

The invention discloses an electric power high-voltage cable connector non-contact infrared temperature measurement system and an electric power high-voltage cable connector non-contact infrared temperature measurement method. The electric power high-voltage cable connector non-contact infrared temperature measurement system comprises a non-contact infrared temperature measurement device and a non-contact infrared temperature measurement probe. The non-contact infrared temperature measurement device comprises an embedded processing unit, a carrier communication module, a data storage unit, a super-capacitor power pack and an SDI communication module. The embedded processing unit is respectively connected with the carrier communication module, the data storage unit, the super-capacitor power pack and the SDI communication module. The non-contact infrared temperature measurement device is connected with the non-contact infrared temperature measurement probe through the SDI communication module, and therefore acquisition of temperature data is achieved. Through measurement, monitoring and statistic analysis of non-contact temperature of a branch box or a switch cabinet or a high-voltage contact, operating staff can comprehensively master operating conditions of the branch box or the switch cabinet or the high-voltage contact, the electric power high-voltage cable connector non-contact infrared temperature measurement system gives out alerting signals to warn relevant people to conduct emergency treatment when temperature rises sharply and reaches ultimate temperature, and therefore occurrence of failures is avoided or reduced.

Description

technical field [0001] The invention relates to the technical field of temperature measurement of connection parts of high-voltage switch cabinets and cable branch boxes in power plants and substations, in particular to a non-contact infrared temperature measurement system and temperature measurement method for electric high-voltage cable joints. Background technique [0002] In the power system, high-voltage switch cabinets and cable branch boxes in power plants and substations are important equipment to ensure stable and reliable power supply. Existing electrical equipment has higher and higher requirements for the reliability of power supply. Under the condition of high voltage and high current, the working reliability of the high-voltage switchgear is closely related to the temperature rise of the isolating switch contacts. During the operation of the power grid, mechanical vibration, contact ablation and other reasons can deteriorate the contact conditions, increase the...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, direct instrument measurement is sometimes used to monitor the temperature of high-voltage switch contacts, which has the problems of inconvenient use, discontinuous measurement, and unreliable data

For example, the patented technology with the publication number CN201210092 provides an online monitoring system for the temperature rise of switchgear contacts. It is a temperature measuring device based on wireless transmission technology. Temperature, although the problem of high-voltage isolation is well solved, but because the sensor is in contact with the contact, there is a certain interference with the temperature field of the contact, so the accuracy of the measurement is affected to a certain extent

[0006] The patented technology with the publication number CN201207000 provides an infrared online temperature measurement device for high-voltage switch cabinets based on wireless transmission. It lacks the functions of historical storage, time recording and environmental temperature collection, so it cannot fully grasp the status information when a fault occurs

[0007] The patented technology with the publication number CN200910074969.2 provides a temperature monitoring device for high-voltage isolating switch contacts. This device can only realize single-point temperature monitoring in the area, and cannot fully reflect the temperature of the monitored switch cabinet and cable branch box. temperature state

Images