Arcingfault often happens on HV transmission line. Its transient resistance is usually assumed as a linear constant resistance in most of the locating algorithms.
电弧故障是高压输电线路的多发故障，目前众多故障定位算法大多数把故障过渡电阻视为线性定常电阻。
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This paper describes briefly the physical phenomenon of internal arcingfault, and discusses some mathematic models for calculation. Finally, some protection measures...
Flammable gas found in the relay indicates some internal fault such as overheating or arcing, whereas air found in the relay may only indicate low oil level or a leak.