GE Meng, LI Peng, TAO An-pei, et al. On-line Detection and Analysis of Partial-discharge FAULT for 220 kV Current Transformer[J]. High voltageapparatus, 2009, 45(6): 153-155+160.
GE Meng, LI Peng, TAO An-pei, et al. On-line Detection and Analysis of Partial-discharge FAULT for 220 kV Current Transformer[J]. High voltageapparatus, 2009, 45(6): 153-155+160.DOI:
The detection and process of a 220 kV current transformer partial-discharge fault between capacitor shields are described.The causes of the fault were analyzed with infrared imaging technology and oil chromatographic analysis.The result indicated that this partial-discharge fault is due to unqualified insulation material
shorter drying time
and poor insulator packing technique
etc.Therefore
an accident of the 220 kV current transformer was avoided.In addition
the importance of on-line detection technology on power system security is discussed.