Title :
Properties of transformer oil under different types of voltages
Author_Institution :
Alexandria Univ., Egypt
Abstract :
This paper gives the breakdown characteristics of transformer oil under highly nonuniform fields using point-to-plane electrode under different types of voltages (direct voltage, 50 Hz alternating voltage, lightning impulse voltage 1/50 μs and switching impulse voltage 200/2500 μs) using point-plane electrode configuration. The effect of gap spacing, polarity on the breakdown are presented for degassed oil, oxygen saturated oil and SF6 saturated oil
Keywords :
power transformer insulation; 1 to 50 mus; 200 to 2500 mus; 50 Hz; O2; SF6; SF6 saturated oil; alternating voltage; applied voltage types; breakdown characteristics; degassed oil; direct voltage; gap polarity; gap spacing; highly nonuniform fields; lightning impulse voltage; oxygen saturated oil; point-to-plane electrode; switching impulse voltage; transformer oil;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990771
