1200-kV system study

Technical Report · Mon Feb 01 00:00:00 EST 1982

OSTI ID:5459811

The 1200kV Systems Study Project consisted of two major tasks: definition of performance requirements for a 1200kV circuit breaker for use in a gas-insulated substation; and performance analysis of a 1200 kV insolator/disconnect switch for gas-insulated substation. For the first task, the performance requirements included: insulation requirements - 60 Hz, switching surge and lightning, both phase to ground and across the open breaker; prospective transient recovery voltage requirements related to fault current interrupting; an opening scheme capable of limiting phase to ground and across the breaker overvoltages resulting from line dropping and out of phase switching; a closing scheme capable of limiting line overvoltages during reclosing to 1.5 pu (2 percent level). The investigation of each of these items and of lightning characteristics and effects is discussed. The 1200 kV disconnect switch study analyzed bus energizing, bus de-energizing, transformer de-energizing, and the effect of hysteresis losses. Results from these analyses are presented. (LCL)

• Research Organization: Brown Boveri Electric, Inc., Chalfont, PA (USA)
• DOE Contract Number: AC01-78ET29064
• OSTI ID: 5459811
• Report Number(s): DOE/ET/29064-1; ON: DE82014512
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
CIRCUIT BREAKERS
PERFORMANCE
SPECIFICATIONS
GAS-INSULATED SUBSTATIONS
SWITCHES
OVERVOLTAGE
CONTROL
UHV AC SYSTEMS
ELECTRICAL INSULATION
FAILURES
LIGHTNING
SURGES
AC SYSTEMS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
POWER SUBSTATIONS
POWER SYSTEMS
200301* - Power Transmission & Distribution- AC Systems
EHV & UHV- (-1989)