Title :
PD patterns in oil-impregnated insulation: A comparative study
Author :
Ariastina, W.G. ; Blackburn, T.R.
Author_Institution :
Dept. of Electr. Eng., Udayana Univ., Bali
Abstract :
This paper presents results of PD test at elevated frequency of supply. Particular attention was given to the discharges that occur in moist pressboard layers immersed in transformer oil. The effect of moisture content on the PD activity was investigated based on the observation of the PD quantities and the characteristics of the PD distributions. Data obtained from the PD test is presented in phase-resolved analysis (PRA) and voltage different analysis (VDA).
Keywords :
partial discharges; transformer oil; PD patterns; oil-impregnated insulation; partial discharge distributions; phase-resolved analysis; transformer oil; voltage different analysis; Accelerated aging; Dielectrics and electrical insulation; Electrodes; Frequency; Laboratories; Materials testing; Oil insulation; Partial discharges; Stress; Voltage; Accelerated ageing; partial discharge; phase-resolved analysis; voltage different analysis;
Conference_Titel :
Condition Monitoring and Diagnosis, 2008. CMD 2008. International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-1621-9
Electronic_ISBN :
978-1-4244-1622-6
DOI :
10.1109/CMD.2008.4580229
