The influence of impulse current waveform on 50 Hz continuous current of switching type surge protective device(SPD) was studied.
研究了冲击电流波形对开关型电涌保护器（SPD）的工频续流的影响。
Computation of spark discharge radius, impulse grounding potential distribution, current waveform and impulse grounding resistance is conducted by using this model.
应用该模型进行了火花半径、接地体冲击地电位分布、电流波形及冲击接地电阻的计算。
应用推荐