DocumentCode :
464093
Title :
A Novel Criterion for Neutral Current Differential Protection
Author :
Zhang, Min ; Wang, HaiGang ; Dong, Xinzhou ; Bo, Z.Q. ; Caunce, B.R.J. ; Klimek, A.
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing
Volume :
1
fYear :
2006
fDate :
6-8 Sept. 2006
Firstpage :
388
Lastpage :
392
Abstract :
A novel criterion for neutral current differential protection is presented in this paper, which is based on a full research into exist neutral current differential protection schemes used in transmission lines. Compared to traditional ones, the novel criterion can improve the sensitivity under internal fault conditions and improve reliability under external fault conditions. More importantly, the novel criterion overcomes the deficiency of sensitivity of traditional criteria under single-pole open condition and possesses more satisfactory performance. The applicable range of the novel criterion is given by theoretic analysis and simulation results are presented to verify the applicability and effectiveness of the proposed criterion
Keywords :
neutral currents; power transmission faults; power transmission protection; power transmission reliability; sensitivity; internal fault condition; neutral current differential protection; reliability; single-pole open condition; transmission line; Analytical models; Automation; Digital relays; Logic; Partial response channels; Power system protection; Power system relaying; Power transmission lines; Protective relaying; Transmission line theory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Universities Power Engineering Conference, 2006. UPEC '06. Proceedings of the 41st International
Conference_Location :
Newcastle upon Tyne
Print_ISBN :
978-186135-342-9
Type :
conf
DOI :
10.1109/UPEC.2006.367504
Filename :
4218710
Link To Document :
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