R. Sarathi, R. Bhattarai, and C. Venkataseshaiah (India)
Breakdown impacts, reliability, nonstandard voltage, Insulation co-ordination.1.0
In the present work, a methodical experimental study was carried out to understand the breakdown characteristics of nitrogen gas under non-standard transient voltages (at different frequencies), with different configurations especially of needle-plane and needle-needle type, at different gap spacing and pressure levels. It is observed that the lightning impulse voltage has higher breakdown strength compared to the unidirectional oscillatory impulse voltage (UOIV).
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