A New Out-of-Step Relay with Rate of Change of Apparent Resistance Augmentation.

Journal Article · Tue Mar 01 04:00:00 EST 1983 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1983.317984· OSTI ID:5977916

Taylor, Carson W; Cresap, R Lee; Haner, Jill M; Hill, Linda A; Mittelstadt, William A

A new concept in out-of-shape protective relaying that has several advantages over conventional out-of-step relaying is developed. The technique involves augmenting apparent impedance or apparent resistance based control with computed rate of change of apparent impedance or resistance. By use of appropriate control laws plus adaptive features, a relay which can be set closer to stability limits is obtained. The concept is being implemented using microprocessors for out-of-step tripping of the Pacific 500 kV AC intertie. Initial installation will be in the fall of 1982.

• Research Organization: Bonneville Power Administration, Portland, Oregon
• OSTI ID: 5977916
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. 102:3; ISSN IEPSA
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
AUGMENTATION
COMPUTERS
CONTROL
ELECTRIC CONDUCTIVITY
ELECTRIC IMPEDANCE
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
EQUIPMENT
IMPEDANCE
INSTALLATION
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
PHYSICAL PROPERTIES
POWER SYSTEMS
RELAYS
STABILITY