EHV reactor/capacitor switch. Final report

Technical Report · Wed Nov 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6530061· OSTI ID:6530061

Fischer, W. H.

A high-performance switching device to meet the growing requirements of switching EHV shunt reactors and capacitors was developed. Its successful application should provide certain improvements over existing devices, such as an enclosed design for closing contacts. The specific objectives of the project were to: develop an SF/sub 6/ gas interrupter for use on a family of switches rated 242 to 800 kV, all capable of interrupting inductive or capacitive currents of 600 amperes; determine the configuration of such a family of switches; and design, build and test a three-phase, 550-kV switch, which would then be sent to the field for evaluation. The three-phase, 550-kV switch was of a live-tank design, and was built with two series interrupter breaks per phase. Resistors are located internal to the interrupters. After passing all mechanical and electrical development tests, the 550-kV switch was sent to Bonneville Power Administration for field evaluation. The proposed family of switches would use one interrupter unit at 242 kV, two at 362 kV and 550 kV, and four at 800 kV. The data indicates that with further development, the number of interrupter units could be reduced at 362 kV and 800 kV, and that the switch application could be expanded to load-break and low-level fault duty.

• Research Organization: Westinghouse Electric Corp., Trafford, PA (USA)
• OSTI ID: 6530061
• Report Number(s): EPRI-EL-934
• Country of Publication: United States
• Language: English

Related Subjects

200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
CIRCUIT BREAKERS
DESIGN
EHV AC SYSTEMS
ELECTRICAL EQUIPMENT
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
PERFORMANCE TESTING
POWER SYSTEMS
POWER TRANSMISSION LINES
SULFUR COMPOUNDS
SULFUR FLUORIDES
SWITCHES
TESTING