Title :
Simulation Tests of a Novel Criterion for Neutral Current Differential Protection
Author :
Zhang, Min ; Dong, Xinzhou ; Bo, Z.Q. ; Caunce, B.R.J. ; Klimek, A.
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing
Abstract :
A novel criterion for neutral current differential protection is presented in this paper, which is based on a full research into traditional neutral current differential protection schemes used in transmission lines. Compared to traditional criteria, the novel one is able to increase sensitivity for an internal fault and remain stable for an external fault. Simulation studies show that the sensitivity of neutral differential protection is improved greatly especially under single-pole open condition.
Keywords :
power transmission faults; power transmission protection; external fault; internal fault; neutral current differential protection; single-pole open condition; transmission lines; Algorithm design and analysis; Automation; Electric resistance; Fault currents; Logic; Power system protection; Power system simulation; Power transmission lines; System testing; Transmission line theory; current differential protection; neutral sequence; operation criterion; sensitivity;
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.2006.321900
