The importance of simulating surge arresters in fast transients programs stems from their useful property as a means of controlling switching overvoltages in EHV and UHV systems. The paper proposes a surge arrester model to be used in conjunction with a transient program based on Fourier transform technique. The validity of the proposed model is demonstrated by computational results.

In this paper, Intelligent water drop algorithm (IWD) is used to analyze single overhead line connected to grid-grounded arrester. In this approach, at first Norton’s equivalent circuit of the overhead line over lossy soil is computed by method of moments (MoM) and then for the problem under consideration, a nonlinear equivalent circuit in the frequency domain is proposed. Finally applying inte...

In order to analyze the explosion accidents of CRH5 EMU roof arrester in recent years, an internal temperature measuring platform based on fluorescence fiber was established, and distribution characteristics under continuous operating voltage high-current impulse were analyzed. The test results show that passing section overvoltage steep have higher amplitudes, while high-harmonic has a lower a...

Penelitian ini bertujuan untuk menganalisa pemeliharaan Lightning Arrester Pada Gardu Induk GIS Simpang Haru Padang. Metode yang dilakukan kegiatan mencegah agar tidak terjadinya suatu kegagalan pada sebuah peralatan. Ada tiga pengujian dilakukan, yakni berupa tahanan insulasi, pengukuran pentanahan lightning arrester dan surge counter. Berdasarkan hasil insulasi telah di gardu induk diperoleh ...

This paper presents impulse tests results on a zinc oxide (ZnO) surge arrester connected to four ground electrodes, with its resistance values ranging from 17 ? 104 ?. It has been noted that when in series various values, the voltage–current characteristics of are far one tested using common grounding, which is standard measurement method described IEC 60060-1. clarifies relationship between el...

The housing of zinc oxide lightning arresters are playing major role for discharging the lightning surges. Previously porcelain and silicon rubber housings were mainly used depending on the atmospheric conditions but in practice a lot of problems are faced with these housing. Hence this paper presenting the ZnO blocks performance characterizes with different dielectrics such as air, transformer...

The paper presents a comparison of the performance of voltage-switching devices and voltage-limiting devices for late seventies-vintage SPDs as marketed and installed in service panels in the USA and in Europe. Artifacts in the response of a typical oscilloscope to a nearby gap sparkover, and the effect of lead dress inside the panels and outdoor installation are described. Predictably, the per...

The increasing usage of hybrid cable-overhead lines raises concerns over the protection short cable sections against lightning surges, because voltage build-up in section. To set a simulation model phenomenon is time consuming, with numerous parameters impacting overvoltage. This paper (Part I) presents formulas able to perform fast estimation maximum overvoltage at line transition point event ...