Adaptive relay setting for stand-alone digital distance protection

Journal Article · Sat Jan 01 04:00:00 EST 1994 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.277720· OSTI ID:7304317

Xia, Y Q ^[1]; Li, K K; David, A K ^[2]

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1. Tianjin Univ. (China)
2. Hong Kong Polytechnic, Kowloon (Hong Kong)

Reach accuracy of a distance relay on transmission lines is adversely affected by fault resistance combined with remote-end infeed which is not measurable at the relaying point. Different network conditions correspond to different remote-end infeed behavior and in conventional setting a safety margin is necessary so as to avoid maloperation. In this paper an adaptive setting concept which can overcome this disadvantage is proposed. A microprocessor based distance relay with this new technique can respond to network conditions that change from time to time and computer simulation has confirmed the validity of this new concept.

• OSTI ID: 7304317
• 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. 9:1; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
ELECTRIC CONTROLLERS
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
INTERCONNECTED POWER SYSTEMS
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
POWER SYSTEMS
POWER TRANSMISSION LINES
RELAYS