Analysis of the impedance measurement of transmission lines with one-phase ground fault

Author

Deng, Huiqiong ; Yu, Jing ; Geng, Leiming

Author_Institution

Coll. of Electr. Eng., Hebei Univ. of Sci. & Technol., Shijiazhuang, China

fYear

2011

fDate

8-10 Aug. 2011

Firstpage

3768

Lastpage

3771

Abstract

When a short-circuit fault with transition resistance occurs on a transmission line, it is difficult to derive the distribution coefficients if both ends of the transmission line are not synchronous. So, for the distance protection and fault location device, it is difficult to give an accurate analytical expression for the impedance measurement. For this problem, this paper aiming at the one-phase ground fault gives a set of analytical expressions for the impedance measurement. The simulation results prove that the analytical expressions are correct.

Keywords

earthing; electric impedance measurement; fault location; power transmission faults; power transmission lines; power transmission protection; short-circuit currents; distance protection; distribution coefficients; fault location device; ground fault; impedance measurement; short-circuit fault; transition resistance; transmission line; Current measurement; Impedance; Impedance measurement; Phase measurement; Power transmission lines; Transmission line measurements; Voltage measurement; fault; impedance; power system; short circuit; transmission line;

fLanguage

English

Publisher

ieee

Conference_Titel

Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on

Conference_Location

Deng Leng

Print_ISBN

978-1-4577-0535-9

Type

conf

DOI

10.1109/AIMSEC.2011.6010002

Filename

6010002