Measured impedance at relaying point considering transmission line capacitance

Author

Shateri, H. ; Jamali, S.

Author_Institution

Center of Excellence for Power Syst. Autom. & Oper., Iran Univ. of Sci. & Technol.

fYear

2008

fDate

1-4 Sept. 2008

Firstpage

1

Lastpage

6

Abstract

This paper investigates the measured impedance by a distance relay considering the transmission line capacitance by utilizing a pi model for the line. The distance relay ideal tripping characteristic is presented. The measured impedance and the tripping characteristic are compared with those of in the case of neglecting the line capacitance. In the case of zero fault resistance, especial attention is paid to the deviation of the measured impedance from its actual value caused by the line capacitance.

Keywords

capacitance; electric impedance measurement; power transmission faults; power transmission lines; relay protection; distance protection operation; distance relay ideal tripping characteristic; impedance measurement; pi model; relaying point; relaying point protection; transmission line capacitance; zero fault resistance; Capacitance measurement; Circuit faults; Electrical resistance measurement; Impedance measurement; Power measurement; Power system measurements; Power system relaying; Protective relaying; Relays; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International

Conference_Location

Padova

Print_ISBN

978-1-4244-3294-3

Electronic_ISBN

978-88-89884-09-6

Type

conf

DOI

10.1109/UPEC.2008.4651493

Filename

4651493