A digital protection technique for parallel transmission lines using a single relay at each end

Journal Article · Wed Jan 01 04:00:00 EST 1992 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.108897· OSTI ID:5507783

Gilany, M I; Malik, O P; Hope, G S ^[1]

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1. Dept. of Electrical Engineering, Univ. of Calgary, Calgary, Alberta T2N 1N4 (CA)

In this paper a new digital relaying technique for parallel transmission lines is presented. Only one relay at each end of the two lines is used. The idea of the protection algorithm is based on the comparison of the average current of corresponding phases. The technique is simple and avoids many problems of parallel lines. Simulation studies show that the trip signal is generated about 5 ms after the inception of the fault. The stability of the relay under different operating conditions is also examined.

• OSTI ID: 5507783
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 7:1; ISSN 0885-8977; ISSN ITPDE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240300* -- Power Transmission Lines & Cables-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALGORITHMS
COMPUTERIZED SIMULATION
ENERGY LOSSES
FAILURES
LINE LOSSES
LOSSES
MATHEMATICAL LOGIC
POWER LOSSES
POWER TRANSMISSION
POWER TRANSMISSION LINES
SAFETY
SIMULATION
STABILITY