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

fYear

2006

fDate

38869

Firstpage

388

Lastpage

391

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICPADM.2006.284197

Filename

4062686