Title :
On the existence of leader discharges in mineral oil
Author_Institution :
All-Russian Electrotech. Inst., Moscow, Russia
fDate :
2/1/1995 12:00:00 AM
Abstract :
Time-resolved pictures of discharges with simultaneous recording of predischarge currents have been obtained in different oil gaps under impulse voltage of positive polarity. It has been stated that in certain experimental conditions, a process similar to the leader process in air occurs, with the typical features of a leader channel and a streamer zone
Keywords :
discharges (electric); electric breakdown; impulse testing; insulation testing; power transformer insulation; power transformer testing; schlieren systems; streak photography; transformer oil; Schlieren photograph; impulse voltage; leader channel; leader discharges; mineral oil; oil gaps; positive discharge propagation; positive polarity impulses; power transformer insulation; predischarge currents; streak photograph; streamer zone; time-resolved pictures; transformer oil breakdown; Air gaps; Circuits; Conductivity; Dielectric liquids; Electric breakdown; Electrodes; Minerals; Petroleum; Terminology; Voltage;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
