Enhancement of the reliability of extra and ultra high voltage transmission systems

Author

Ramold, M. ; Jäger, J.

Author_Institution

Dept. of Electr. Power Syst., Univ. of Erlangen-Nurnberg, Erlangen, Germany

fYear

2009

Firstpage

1

Lastpage

8

Abstract

Single-pole auto-reclosing is an approved method to enhance the reliability in transmission systems. But with increasing system voltage, the maximum line length, for which a common single-pole auto-reclosing is successful, decreases. Therefore this paper will show how single-pole auto-reclosing can also be applied in extra and ultra high voltage transmission systems, by extending the system with high-speed grounding switches or with four-legged shunt reactor schemes. The operation mode of both will be illustrated.

Keywords

earthing; power transmission reliability; four-legged shunt reactor; high-speed grounding switches; line length; reliability enhancement; single-pole auto-reclosing; ultra high voltage transmission systems; Circuit faults; Grounding; Nuclear power generation; Power demand; Power generation; Power generation economics; Power system reliability; Power transmission; Switches; Voltage; four-legged shunt reactor scheme; high-speed grounding switches; secondary arc current; single-pole auto-reclosing;

fLanguage

English

Publisher

ieee

Conference_Titel

PowerTech, 2009 IEEE Bucharest

Conference_Location

Bucharest

Print_ISBN

978-1-4244-2234-0

Electronic_ISBN

978-1-4244-2235-7

Type

conf

DOI

10.1109/PTC.2009.5282057

Filename

5282057