Title :
Measured Impedance by Distance Relay Considering Double Model of the Line Capacitance
Author :
Jamali, S. ; Shateri, H.
Author_Institution :
Dept. of Electr. Eng., Center of Excellence for Power Syst. Autom. & Oper., Iran Univ. of Sci. & Technol., Tehran
Abstract :
This paper investigate the measured impedance by distance relay considering the transmission line capacitance by utilizing a double pi model for the line. The distance relay ideal tripping characteristic is therefore presented. The measured impedance and the tripping characteristic are compared with those in the case of not considering the line capacitance. In the case of zero fault resistance, the deviation of the measured impedance from its exact value caused by the line capacitance is also investigated.
Keywords :
electric impedance measurement; power transmission faults; power transmission lines; power transmission protection; relay protection; distance relay; double pi model; impedance measurement; relay tripping characteristics; transmission line capacitance; Capacitance measurement; Circuit faults; Electrical resistance measurement; Impedance measurement; Power system faults; Power system measurements; Power system protection; Power system relaying; Protective relaying; Transmission line measurements; Distance protection; Fault resistance; Line capacitance; Measured impedance; Transmission line;
Conference_Titel :
Power System Technology, 2006. PowerCon 2006. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
1-4244-0110-0
Electronic_ISBN :
1-4244-0111-9
DOI :
10.1109/ICPST.2006.321903
