Title :
Reduction of Very Fast Transient Over-Voltages in GIS
Author :
Naveed, Syed A. ; Amaranath, J.
Author_Institution :
Jawaharlal Nehru Technol. Univ., Hyderabad, India
Abstract :
This paper describes the high voltage transients generated in a 245 KV gas insulated system (GIS). These over voltages are generated due to switching operations and faults. This can lead to breakdown in GIS. Here equivalent circuits have been developed for GIS and very fast transient over-voltages are calculated for fixed and variable arc resistance. These over voltages have been suppressed by inserting a resistor of appropriate value during switching.
Keywords :
arcs (electric); equivalent circuits; gas insulated substations; overvoltage; transients; GIS breakdown; arc resistance; equivalent circuit; gas insulated substation; switching operation; transient over-voltage reduction; voltage 245 kV; Circuit faults; Conductors; Gas insulation; Geographic Information Systems; Power system transients; Power transformer insulation; Substations; Surges; Switches; Voltage control;
Conference_Titel :
High Voltage Engineering and Application, 2008. ICHVE 2008. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-3823-5
Electronic_ISBN :
978-1-4244-2810-6
DOI :
10.1109/ICHVE.2008.4773869
