Automatic Warning Method for Thermal Faults of High-Voltage Elec-trical Equipment in Substations
[Purposes]Because the working environment of high-voltage electrical equipment in substa-tion is complex and changeable,the thermal state of the equipment is affected by many factors,which are easy to cause thermal failure.Traditional early warning methods are often difficult to comprehensively consider these factors,resulting in low early warning accuracy.Therefore,in view of the above problems,an automatic early warning method for thermal faults of high-voltage electrical equipment in substations is proposed.[Methods]By collecting the temperature data in the running process of the equipment in real time,the running status of the equipment can be grasped,and according to these data,the identifica-tion index of equipment failure can be set to judge whether the equipment has signs of thermal failure.Based on the set fault discrimination index,a fault early warning model is established and trained to real-ize automatic early warning of faults.[Findings]The experimental results show that this method can com-prehensively consider various factors affecting electrical equipment,and the coefficient of determination reaches 0.947,which means the fitting effect is good and the early warning accuracy is high.[Conclu-sions]The application of the proposed method can further improve the efficiency of thermal fault detec-tion and early warning of electrical equipment,reduce the potential risk of equipment accidents,and en-sure the safe and stable operation of power system.
substationhigh voltage electrical equipmentthermal failureautomatic warning
NETL
NSTL
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