F.7
Date Code 20080103 Instruction Manual SEL-351S Relay
Setting Negative-Sequence Overcurrent Elements
Other Negative-Sequence Overcurrent Element References
Other Negative-Sequence Overcurrent Element
References
The following IEEE paper is the source of the coordination guidelines and
example given in this appendix. The paper also includes analyses of system
unbalances and faults and the negative-sequence current generated by such
conditions:
A. F. Elneweihi, E. O. Schweitzer, M. W. Feltis, “Negative-Sequence
Overcurrent Element Application and Coordination in Distribution
Protection,” IEEE Transactions on Power Delivery, Volume 8, Number 3,
July 1993, pp. 915-924.
The following conference paper gives many good application examples for
negative-sequence overcurrent elements. The focus is on the transmission
system, where negative-sequence overcurrent elements provide better
sensitivity than zero-sequence overcurrent elements in detecting some single-
line-to-ground faults:
A. F. Elneweihi, “Useful Applications for Negative-Sequence
Overcurrent Relaying,” 22nd Annual Western Protective Relay
Conference, Spokane, Washington, October 24-26, 1995.
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