Elimination of Closing Resistors for Breakers in 1000-kV UHV System by Surge Arresters

Author

He, Jinliang ; Li, Chen ; Hu, Jun ; Zeng, Rong ; Yuan, Jun

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

27

Issue

4

fYear

2012

Firstpage

2168

Lastpage

2175

Abstract

Closing resistors for breakers are used to suppress switching overvoltages, but their shortcomings make it a long-standing goal to eliminate closing resistors. In this paper, different arresters are evaluated as alternative measures to eliminate closing resistors in 1000-kV ultra-high voltage (UHV) systems. Two kinds of arresters with lower residual voltage are introduced to suppress switching overvoltages. The performance of these arresters under different operation conditions is also analyzed to ensure the safety of arresters. It is shown that closing resistors in UHV systems can be eliminated after applying proper arresters and adopting certain distributing measures.

Keywords

arresters; circuit breakers; resistors; UHV system; breakers; closing resistors; long-standing goal; lower residual voltage; operation conditions; suppress switching overvoltages; surge arresters; ultra-high voltage systems; voltage 1000 kV; Absorption; Arresters; Energy management; Resistors; Surges; Thermal stability; Transmission line measurements; Voltage control; Absorbed energy; closing resistors; high applied voltage ratio arrester; low residual voltage arrester; switching overvoltage; ultra-high voltage (UHV) system;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2012.2202293

Filename

6236276