Multiphase flashover analysis in Japanese 6.6kV medium voltage line

Author

Sekioka, Shozo

Author_Institution

Shonan Inst. of Technol., Fujisawa, Japan

fYear

2014

fDate

11-18 Oct. 2014

Firstpage

688

Lastpage

693

Abstract

This paper discusses multiphase flashover simulations in a Japanese 6.6kV medium voltage line caused by direct lightning stroke to the line. The multiphase flashover causes a short circuit in the line, and sometimes causes serious damages in power apparatuses and cables. The flashover on an insulator is judged using an integration method, which can consider an influence of voltage waveform on the flashover by the use of the EMTP. The simulation results suggest the integration method is an important tool for accurate lightning surge analysis with special reference to multiphase flashover.

Keywords

flashover; insulators; lightning protection; power cables; power transmission lines; EMTP; Japanese medium voltage line; insulator; integration method; lightning stroke; lightning surge analysis; multiphase flashover analysis; multiphase flashover simulations; power apparatuses; power cables; short circuit; voltage 6.6 kV; voltage waveform; Cable insulation; EMTP; Estimation; Flashover; Insulators; Suspensions; Switches; 6.6kV medium voltage line; direct lightning stroke; integration method; multiphase flashover;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightning Protection (ICLP), 2014 International Conference o

Conference_Location

Shanghai

Type

conf

DOI

10.1109/ICLP.2014.6973211

Filename

6973211