Some results of power-frequency partial discharge tests carried out on transformer oil are presented, with the aim of characterizing the oil behavior under electrical stress lower than breakdown value. The test results are arranged in order of increasing magnitudes, and the cumulative probability of partial discharge (PD) inception voltage is estimated for each PD intensity level. Curves relating PD level to the inception voltage for different values of probability are given.
PARTIAL DISCHARGES INCEPTION VOLTAGE OF INSULATING OILS IN POWER TRANSFORMERS / MAZZETTI DI PIETRALATA, Carlo; Pompili, Massimo. - STAMPA. - (1986), pp. 108-111. (Intervento presentato al convegno IEEE International Symposium on Electrical Insulation tenutosi a Washington, DC, USA nel 8-11 Giugno 1986).
PARTIAL DISCHARGES INCEPTION VOLTAGE OF INSULATING OILS IN POWER TRANSFORMERS
MAZZETTI DI PIETRALATA, Carlo;POMPILI, Massimo
1986
Abstract
Some results of power-frequency partial discharge tests carried out on transformer oil are presented, with the aim of characterizing the oil behavior under electrical stress lower than breakdown value. The test results are arranged in order of increasing magnitudes, and the cumulative probability of partial discharge (PD) inception voltage is estimated for each PD intensity level. Curves relating PD level to the inception voltage for different values of probability are given.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
