13. 8-kV (ground) fault-bus-relaying study

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6348632

Carden, Jr, W F

This study was made at the request of the committee appointed to investigate a power outage which occurred on May 5, 1980, at the ORGDP in Oak Ridge, Tennessee. A portion of this outage was due to a false ground on the 13.8-kV fault-bus-relaying system. This report covers the following five areas: (1) fundamentals of fault-bus relaying and application at ORGDP; (2) description of the false ground on the 13.8-kV fault-bus-relaying system and corrective actions taken at that time; (3) causes of the false 13.8-kV fault-bus-relay trip; (4) further possible corrective actions to reduce the possibility of another false 13.8-kV fault-bus-relay trip; and (5) effects of reducing ground-fault current magnitude and its effects on ground/relay coordination. Recommendations are presented concerning the reduction of the possibility of another false 13.8-kV fault-bus-relay trip and the reduction of the magnitude of ground-fault current.

• Research Organization: Oak Ridge Gaseous Diffusion Plant, TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6348632
• Report Number(s): K/D-5344-Rev.1; CONF-830509-1-Rev.1; ON: DE83005877
• Country of Publication: United States
• Language: English

Related Subjects

200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
ELECTRIC GROUNDS
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
EQUIPMENT
FAILURES
GASEOUS DIFFUSION PLANTS
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
OPERATION
ORGDP
OUTAGES
POWER DISTRIBUTION SYSTEMS
RELAYS
US DOE
US ERDA
US ORGANIZATIONS