Relation between the Trend of Partial Discharges and Aging Models under AC Voltage
The research work reported in this paper has the aim to contribute in the development of a new physical aging model for damage inception and growth from micro-cavities in polymeric insulating materials subjected to partial discharges (PD) under AC voltage. Aging tests were performed on polyethylene (PE) layered specimens with cylindrical micro-cavities. The PD activity taking place inside the micro-cavities was monitored during the aging process. PD patterns, discharge repetition rates and discharge amplitudes were recorded. Common features can be extracted in the changing trend of PD repetition rate and discharge amplitude. Furthermore, damage growth rate, as well as degradation severity, are inferred through simple statistics.
aging model partial discharge damage growth rate
Le WANG Luigi TESTA Andrea CAVALLINI Gian Carlo MONTANARI
DIE-LIMAT, University of Bologna, Viale Risorgimento, 2-40136 Bologna, Italy
国际会议
哈尔滨
英文
268-271
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）