Management And Analysis Of Transient Electromagnetic Disturbance Data Of Switching Operations Measured In Substations

Lighting, fault and switching operation are three primary transient electromagnetic disturbance sources in substations, among them, transient electromagnetic disturbance data caused by switching operation is relative easily obtained through the test on spot. Analysis transient electromagnetic disturbance caused by switching operation will be in favor of judging the total level about electromagnetic disturbance in substations, and bringing forward or perfecting transient anti-interference standard about secondary equipments. This paper develops management and analysis software about transient electromagnetic disturbance data, and takes statistics for analysis result by using beisaier formula and 80%/80% standard. The management database is developed basing on Access 2000, data analysis is developed basing on LabVIEW 6.1 combing the concept of virtual instrument. Database is used to store original data and analysis result; data analysis system is used to take time and frequency domain analysis. The total system is easy to operate, having full functions, and can be upgraded synchronously with the software used in this paper, especially the analysis system has an operating interface similarity with traditional instruments panel. The software can satisfy the analysis requirement of transient electromagnetic disturbance in substations.Wang Shuang (Theory and New Technology of Electrical Engineering)Directed by Prof. Cui Xiang...