A novel algorithm for high-resistance earth-fault distance protection

Author

Ye, P. ; Li, K.K. ; Chen, D.S. ; David, A.K.

Author_Institution

Dept. of Electr. Power Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

1996

fDate

15-20 Sep 1996

Firstpage

475

Lastpage

480

Abstract

The steady-state operating characteristic of earth-fault distance protection based on a differential equation is analyzed. It is shown that this system may either over-reach or under-reach at some power system operating conditions. A novel algorithm for high-resistance earth-fault distance protection is put forward. Theoretical analysis and digital simulation results show that this new algorithm can overcome the steady-state over-reach problem with excellent reach accuracy and operating time

Keywords

differential equations; digital simulation; electric resistance; power system analysis computing; power system protection; differential equation; digital simulation; high-resistance earth-fault distance protection; power system operating conditions; steady-state operating characteristic; steady-state over-reach problem; Earth; Electric resistance; Power system faults; Power system protection; Power system relaying; Power transmission lines; Protective relaying; Senior members; Steady-state; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference, 1996. Proceedings., 1996 IEEE

Conference_Location

Los Angeles, CA

Print_ISBN

0-7803-3522-8

Type

conf

DOI

10.1109/TDC.1996.547558

Filename

547558