Title :
Estimating the Size of Ferrite for Suppressing VFTO in GIS
Author :
Lijun, Jin ; Yuanbing, Zheng ; Ge, Pen ; Zheng, Yuan ; Xianggong, Zheng
Author_Institution :
Dept. of Electr. Eng., Tongji Univ., Shanghai
Abstract :
The insulation of apparatus in the power system is often broken by the very fast transient over voltage (VFTO), which cause from the operation of disconnector in gas insulate substation (GIS). In this paper, a new idea for the suppressing VFTO by ferrite is put forward, and the characteristic of ferrite is analyzed. The effect of suppressing VFTO by the ferrite is tested. Methods to estimate the size of ferrite are advanced, and the characters of the two calculating methods between constant magnetic conductivity and constant frequency for the size of ferrite are discussed
Keywords :
ferrite devices; gas insulated substations; overvoltage protection; power system transients; GIS; VFTO suppression; disconnector; ferrite ring size estimation; gas insulate substation; magnetic conductivity; power apparatus insulation; power system; very fast transient over voltage; Ferrites; Frequency estimation; Gas insulation; Geographic Information Systems; Magnetic analysis; Power system analysis computing; Power system transients; Substations; Testing; Voltage control; Ferrite; Suppressing; VFTO;
Conference_Titel :
Properties and applications of Dielectric Materials, 2006. 8th International Conference on
Conference_Location :
Bali
Print_ISBN :
1-4244-0189-5
Electronic_ISBN :
1-4244-0190-9
DOI :
10.1109/ICPADM.2006.284197
