电弧重燃后瞬时能量再快速地降到基值。
The instantaneous energy falls again rapidly to base after arc re-striking.
试验结果表明，瞬时能量可以综合地反映电流电压对电弧动态性能的影响。
The experimental results indicate that the instantaneous energy can synthetically reflect the influence of current and voltage on dynamic arc characteristics.
在此基础上我们研究讨论了时延周期延拓相对瞬时能量聚类，但发现存在相位模糊的问题。
Based on the method we study the phase of the cycle to cluster the power in each frequency point. Through clustering we find it has the phase ambiguity.
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