SPD的接线方式分析

分析电涌保护器的接线方式,重点说明凯文式接线方式,即最大限度地消除雷电流通过时在SPD两端接线上的寄生电阻电感产生的电压降的接线方式。在有条件的情况下应尽量采用凯文式接线方式。但并不是任何情况下均适合该接线方式,在实际运用中,只有合理选择凯文式接线方式才能真正发挥其作用。

Analysis of SPD Wiring Method

The wiring method of SPD is studied with the emphasis on the Kelvin wiring method, which can eliminate farthest the voltage drop imposed across the wires at the two ends of the SPD induced by parasitic resistance when lightning current passing through them. Whenever possible, Kelvin wiring method should be adopted. However, it is not applicable to all, in practice, only the reasonably - selected Kelvin wiring method can play a right role.