Multifunction protective relay. Topical report, October 1988-November 1989

Technical Report · Wed Nov 01 04:00:00 EST 1989

OSTI ID:5904888

Yalla, M; Branch, T; Vescovi, D

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. Numerous studies serve to emphasize the novelty of many cogeneration applications and the lack of equipment especially designed to protect the utility interconnection. The report describes a relay which will include in a single package most of the protection functions required for small, up to 5 MVA, gas-fired cogeneration installations. The relay, incorporating thirteen distinct protection functions, is prepared for panel mounting in a size used by the industry for other single-function devices.

• Research Organization: Beckwith Electric Co., Inc., Largo, FL (USA)
• OSTI ID: 5904888
• Report Number(s): PB-91-144568/XAB; CNN: GRI-5077-293-1691
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
CHEMICAL REACTIONS
COGENERATION
COMBUSTION
DESIGN
DEUS
DOCUMENT TYPES
DUAL-PURPOSE POWER PLANTS
ELECTRIC UTILITIES
ELECTRICAL EQUIPMENT
ENERGY SOURCES
ENERGY SYSTEMS
ENGINEERING
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
INTERCONNECTED POWER SYSTEMS
NATURAL GAS
ON-SITE POWER GENERATION
OXIDATION
POWER GENERATION
POWER PLANTS
POWER SYSTEMS
PROGRESS REPORT
PUBLIC UTILITIES
RELAYS
RELIABILITY
SAFETY ENGINEERING
SELLBACK
STEAM GENERATION
THERMOCHEMICAL PROCESSES