Comparative experimental research on the LEMP protection effects of RF surge arresters with low-pass and band-pass frequency characteristics

Abstract

In this paper, we introduced the comparative experimental research results of lightning electromagnetic pulses (LEMP) protection effects of radio frequency (RF) surge arresters with low-pass and band-pass frequency characteristics. It can be conclude that the low-pass arrester based on semiconductor surge protection gap (SSPG) featured shorter response time in comparison with that based on gas discharge tubes (GDT), and the LEMP protection performance of band-pass arrestor was much better than that of the low-pass ones. The residual pulse amplitude of the band-pass arrester was about 1/10∼1/5 of the low-pass arresters, and the specific value was determined by the lower-side-band suppression capabilities of the equivalent band-pass filter.