Lightning performance of covered conductors overhead distribution lines

Author

Thanasaksiri, T.

Author_Institution

Dept. of Electr. Eng., ChiangMai Univ., Chiang Mai, Thailand

fYear

2010

fDate

19-21 May 2010

Firstpage

284

Lastpage

288

Abstract

This paper analyzes the lightning performance of 22 kV, ChiangMai substation 4 to Doi-Suthep, overhead distribution line with covered conductors. The performance of line which related to the insulator flashover has been modeled and analyzed using EMTP. The backflashover rate (BFOR), shielding failure flashover rate (SFFOR) and induced voltage flashover rate (IVFOR) of line have been determined. The number of lightning flashovers from simulation, by applying ground flash density N_g = 6.5 × 10^-5 T_d^2.277, are close with the data from the line outages recorder.

Keywords

flashover; overhead line conductors; power overhead lines; shielding; ChiangMai substation; backflashover rate; covered conductors overhead distribution lines; ground flash density; induced voltage flashover rate; insulator flashover; lightning performance; line outages recorder; shielding failure flashover rate; Cable insulation; Conducting materials; Conductors; Flashover; Lightning; Power cable insulation; Power cables; Power distribution lines; Substations; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics Computer Telecommunications and Information Technology (ECTI-CON), 2010 International Conference on

Conference_Location

Chaing Mai

Print_ISBN

978-1-4244-5606-2

Electronic_ISBN

978-1-4244-5607-9

Type

conf

Filename

5491486