Title :
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
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;
Conference_Titel :
PowerTech, 2009 IEEE Bucharest
Conference_Location :
Bucharest
Print_ISBN :
978-1-4244-2234-0
Electronic_ISBN :
978-1-4244-2235-7
DOI :
10.1109/PTC.2009.5282057
