丁津津,程志友,张倩,高博,汪玉,俞斌.新一代智能变电站电子式电压互感器异常分析[J].电测与仪表,2017,54(15):. DINGJINJIN,CHENGZHIYOU,ZHANGQIAN,GAOBO,WANGYU,YUBIN.Anomalies Analysis on Electronic Voltage Transformer in New Generation Smart Substation[J].Electrical Measurement & Instrumentation,2017,54(15):.
新一代智能变电站电子式电压互感器异常分析
Anomalies Analysis on Electronic Voltage Transformer in New Generation Smart Substation
This article introduces exceptional conditions of electronic voltage transformers for New Generation Smart Substation in Anhui among start-up process. By analyzing the recorded data, it is speculated that there are exceptions in voltage converters. Comparing the new waveforms with old ones from the voltage converter, the speculation is demonstrated. With the spectral analysis of waveforms using S-transform, it is further determined that poor performance of voltage converter directly leads to the above exceptions. Finally some reform measures are proposed to prevent this kind of exceptions.