Selective-Pole Switching of Long Double-Circuit EHV Line.

Conference · Thu Jan 01 04:00:00 EST 1976 · IEEE Trans. Power Appar. Syst.; (United States)

OSTI ID:7353934

Kimbark, Edward W

The joint use of several new concepts for improving stability, reliability, and safety of a double-circuit three-phase EHV line is discussed. These concepts include: use of selective-pole switching, that is, only the faulted conductors are opened and reclosed; exclusive use of that arrangement of conductors that gives the least current to ground from a large vehicle capacitively coupled to the line: like phases are in diagonally opposite positions; use of bank of 3 shunt capacitors and 9 shunt reactors for neutralizing the 15 interconductor capacitances and thereby eliminating the shunt capacitive coupling that tends to maintain the secondary fault arc; and sectionalizing the faulted conductor or conductors into two or more longitudinal sections by remote-controlled switches in order to reduce the longitudinal resistive-inductive coupling that also tends to maintain the secondary fault arc. These concepts are illustrated by applying all of them to a simulated 735-kV, heavily loaded, 200-mile line having 6 bundles of 4 Chukar conductors each.

• Research Organization: Bonneville Power Administration, Portland, OR
• OSTI ID: 7353934
• Conference Information: Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Journal Volume: PAS-95:1
• 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
CAPACITORS
CIRCUIT BREAKERS
EHV AC SYSTEMS
ELECTRIC GROUNDS
ELECTRICAL EQUIPMENT
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
Electric power transmission - Equipment and supplies - Protection
OPERATION
OVERCURRENT
OVERVOLTAGE
POWER SYSTEMS
POWER TRANSMISSION LINES
RELIABILITY
SAFETY
STABILITY
SURGES