Title :
An operation criterion for line current differential relay with higher sensitivity
Author :
Wang, HaiGang ; Dong, X.Z. ; Bo, Z.Q. ; Caunce, B.R.J. ; Klimek, A.
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing
Abstract :
Based on the analysis of operation criteria of line current differential relays, this paper proposed a new criterion. Comparing with the existing ones, the proposed criterion has a higher sensitivity for internal faults and more dependability for external faults. Combined with fault components, the new operation criterion offers better performance. Theory calculation and RTDS simulation conducted have proved its advantages
Keywords :
power transmission faults; power transmission protection; relay protection; external faults; fault components; internal faults; line current differential relay; Current measurement; Power system faults; Power system protection; Power system relaying; Power system reliability; Power system simulation; Power transmission lines; Protective relaying; Relays; Signal processing algorithms; Current Differential Relay; Power System Protection; Transmission Line Protection;
Conference_Titel :
Power Engineering Society General Meeting, 2006. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0493-2
DOI :
10.1109/PES.2006.1709020
