Title :
Understanding the tracking phenomena in epoxy nanocomposites adopting UHF technique
Author :
Sarathi, R. ; Karpagam, R.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India
Abstract :
The tracking phenomenon is basically a carbonaceous process, which occurs at the surface of the insulating material during operation. Epoxy nanocomposites have high tracking resistance. Tracking studies were carried out by adopting IEC-587 standards. An attempt has been made to characterize the UHF signal radiated due to discharges during tracking studies. Percentage of clay content in epoxy nanocomposites has not showed any variation in UHF signal generated. It is observed that surface discharges radiates UHF signal with its frequency content lies in the range of 1-3 GHz and at the time of tracking it is in the range of 1-2 GHz. Zero span analysis of UHF signal by using spectrum analyser could help one to identify the point of transition from surface discharge to tracking condition.
Keywords :
IEC standards; UHF measurement; composite insulating materials; insulation testing; nanocomposites; polymers; surface discharges; IEC-587 standards; UHF signal radiation; UHF technique; carbonaceous process; clay content; discharges; epoxy nanocomposites; frequency 1 GHz to 3 GHz; insulating material; spectrum analyser; surface discharges; tracking phenomena; zero span analysis; Degradation; Discharges; Insulation life; Nanocomposites; Surface contamination; Surface discharges; Epoxy resin; UHF; degradation; nano composite; tracking;
Conference_Titel :
Industrial and Information Systems (ICIIS), 2011 6th IEEE International Conference on
Conference_Location :
Kandy
Print_ISBN :
978-1-4577-0032-3
DOI :
10.1109/ICIINFS.2011.6038046
