Online Temperature Monitor Of10kV Switchgear

High-voltage switching device is an important power system control and protectionequipment, once the high-voltage switching equipment itself fails, it may result in greaterpower system failure, a major cause serious damage. According to statistics from a number ofdomestic and foreign, in terms of high-voltage circuit breakers,12kV switch voltage switch ofthe total number of2/3switching equipment failure rate accounted for63.2%of all switchingdevices, and for10kV high voltage switchgear, the contact (connector) fever is second only toswitch points, closing coil burned the second largest defects, thus combining the operation ofZhaoqing Power Supply Bureau projects that the circuit breaker on10kV high voltageswitchgear, the temperature of the disconnector contacts line measurement is necessary.Departure from the basic concepts of online monitoring, detailed information on thecomposition and working principle of the line monitoring and analysis of high-voltageswitchgear temperature measuring device consisting of software, hardware and onlinetemperature measurement should be noted that. Focusing on wireless temperature measuringand the fiber grating temperature measuring the two temperature measuring technicalcharacteristics analysis, two temperature measuring techniques have their own characteristics,and field application has been carried out in Zhaoqing Power Supply Bureau110kVsubstation. Finally, the operation according to the site, the effect of wireless temperature andthe fiber grating temperature verification, after the on-site temperature effect than confirmedfiber grating temperature measuring technology is stable and reliable, able to meet the10kVhigh-voltage switchgear temperature measuring of Zhaoqing Power Supply Bureau needs, canbe widely applied.Finally, this paper describes the advantages of fiber grating temperature measuringtechnology with the traditional temperature measuring technology, and put forward somethoughts on fiber grating temperature measuring technology large-scale application inZhaoqing Power Supply Bureau.