Pre-breakdown discharges in highly non-uniform fields in relation to gas-insulated systems

H Anis, KD Srivastava - IEEE Transactions on Electrical …, 1982 - ieeexplore.ieee.org
In clean SF6 gas-insulated power transmission systems significant pre-breakdown
discharges are rarely observed. This is so because the prevailing electric field is only
moderately non-uniform. In practical systems, however, conducting particle contamination
creates regions of highly non-uniform fields. Initial ionization, under contaminated
conditions, takes the form of pre-breakdown discharges. An understanding of pre-
breakdown discharges is essential for evaluating the conducting particle effects and the …

Pre-breakdown discharges in highly non-uniform fields in relation to gas-insulated systems

KD Srivastava, H Anis - Conference on Electrical Insulation & …, 1981 - ieeexplore.ieee.org
In clean SF 6 gas-insulated power transmission systems significant pre-breakdown
discharges are rarely observed. This is so because the prevailing electric field is only
moderately non-uniform. In practical systems, however, conducting particle contamination
creates regions of highly non-uniform field. Initial ionization under contaminated conditions
takes the form of pre-breakdown discharges. An understanding of pre-breakdown
discharges is essential for evaluating the conducting particle effects and the insulation …
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