EXPERIMENTAL RESULTS WITH SMALL AIR GAPS: FURTHER THOUGHTS AND COMMENTS ON THE DISCHARGE (OR CHARGING PHENOMENA) BELOW THE SO-CALLED INCEPTION VOLTAGE
Michael G. Danikas - Nikolaos Vrakotsolis
There has been some research effort on the problem of possible partial
discharges (or charging phenomena) below the so-called inception voltage in both
solid and gaseous dielectrics. In the present paper, we offer more experimental
results on the existence of random partial discharges for a range of small air
gaps at electric fields corresponding to the inception voltage or below it.
There are strong indications that random partial discharges (or charging
phenomena) appear in air gaps greater than those at which discharges normally
take place. The connection of the present results with those of previous work is
discussed. Some thoughts on possible future work are proposed.
Keywords: small air gaps, inception voltage, partial discharges, point-plane electrode arrangement, space charge