Title :
The effect of appartus model on Very Fast Transient Over-voltage
Author :
Na, Wang ; Li-ping, Fan ; Yu, Liang
Author_Institution :
Sch. of Inf. Eng., Shenyang Univ. of Chem. Technol., Shenyang, China
Abstract :
Very Fast Transient Overvoltages (VFTO) are caused by disconnector switching operations within a Gas Insulated Substation (GIS). Based on a Hydro-energy storage station, the very fast transient over-voltage in GIS is calculated and simulated based on two transient models of circuit breaker, applying the Electro-Magnetic Transient Program in this paper,the impact of varied models on the values and the frequencies of VFTO in the GIS is intensively focused. It is indicated that the two models of circuit breaker have different effects on the peak voltage of VFTO for different nodes. Under the operation modes, the deviations of the most voltage spectrum frequency are 5.8% at circuit breaker.
Keywords :
EMTP; circuit breakers; gas insulated substations; overvoltage; transient analysis; Electromagnetic Transient Program; GIS; VFTO; circuit breaker; disconnector switching operations; gas insulated substation; hydroenergy storage station; very-fast transient overvoltage; voltage spectrum frequency; Capacitance; Circuit breakers; Geographic Information Systems; Integrated circuit modeling; Surges; Switches; Transient analysis; VFTO disconnector switch; circuit- breaker; distributed parameter;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5778093
