Multifunction protective relay. Final report, October 1988-November 1991

Technical Report · Fri Nov 01 04:00:00 EST 1991

OSTI ID:5856006

Harlow, J; Yalla, M; Kantor, J

Since the enactment of the National Energy Act of 1979, many private energy producers have been planning and building small generation and cogeneration facilities in order to sell power to the local utility. Many of the non-utility generators built after 1979 are connected directly to the closest utility distribution circuit. Aware of the problems associated with connecting generators in this manner, electric utilities across the country developed specifications and standards to allow safe and reliable interconnections. The report describes a multifunction protective relay which uses state-of-the-art digital signal processing procedures to accomplish the objective of providing most of the relaying requirements of utility electrical interconnections. The relay has been demonstrated to be suitable for this critical application through extensive laboratory and in-service field testing. The relay, incorporating thirteen distinct protection functions affords the user the savings of the initial capital cost plus simplicity of installation and use.

• Research Organization: Beckwith Electric Co., Inc., Largo, FL (United States)
• OSTI ID: 5856006
• Report Number(s): PB-92-132919/XAB; CNN: GRI-5088-293-1691
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
CAPITALIZED COST
COGENERATION
COMPUTERS
COST
DEUS
DUAL-PURPOSE POWER PLANTS
ELECTRIC UTILITIES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
INSTALLATION
INTERCONNECTED POWER SYSTEMS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
OPERATION
PERFORMANCE TESTING
POWER GENERATION
POWER PLANTS
POWER SYSTEMS
PUBLIC UTILITIES
RELAYS
RELIABILITY
SELLBACK
STEAM GENERATION
TESTING