Title :
A new directional element for numerical distance relays
Author :
McLaren, P.G. ; Swift, G.W. ; Zhang, Z. ; Dirks, E. ; Jayasinghe, R.P. ; Fernando, I.
Author_Institution :
Manitoba Univ., Winnipeg, Man., Canada
fDate :
4/1/1995 12:00:00 AM
Abstract :
This paper describes a new positive sequence directional element for use in numerical distance relays. The element is incorporated in a numerical relay and the relay is tested on a RTDS (real time digital simulator). Results are also shown from on-line tests in two different locations in the Manitoba Hydro network. Finally an accurate software model of the relay, proved against recorded performance on the RTDS tests, is used in off-line tests on complex system configurations
Keywords :
digital simulation; power system analysis computing; power system protection; real-time systems; relay protection; Manitoba Hydro network; numerical distance relays; on-line tests; positive sequence directional element; power systems; real time digital simulator; software model; Circuit faults; Digital relays; Impedance measurement; Phase measurement; Polarization; Protective relaying; Samarium; Software testing; System testing; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
