Title :
Characteristics of the partial discharge pulse burst in transformer and switchgear oils
Author :
Pomp, M. ; Mazzetti, C. ; Bartnikas, R.
Author_Institution :
Roma Univ., Italy
Abstract :
A study was carried out on the partial discharge pulse burst behavior in a mineral oil under AC conditions. The recurrence rate of pulse bursts was found to increase significantly with voltage above partial discharge inception. This was accompanied by an increase of both the number of discrete pulses and their amplitude within the pulse burst itself. These increases were reflected by a substantial rise in the apparent charge transfer per pulse burst as well as the overall charge transfer with increased applied voltage.
Keywords :
impulse testing; insulation testing; partial discharge measurement; power transformer insulation; power transformer testing; switchgear insulation; switchgear testing; transformer oil; AC conditions; apparent charge transfer; insulation breakdown testing; mineral oil; partial discharge inception; partial discharge pulse burst characteristics; power transformer oils; switchgear insulating oils; Charge transfer; Electric breakdown; Oil insulation; Partial discharges; Petroleum; Power transformer insulation; Pulse circuits; Pulse measurements; Pulse transformers; Voltage;
Conference_Titel :
Dielectric Liquids, 2002. ICDL 2002. Proceedings of 2002 IEEE 14th International Conference on
Print_ISBN :
0-7803-7350-2
DOI :
10.1109/ICDL.2002.1022700
