Three terminal operation of the Pacific HVDC intertie for dc circuit breaker testing

Conference · Wed Dec 31 23:00:00 EST 1975 · IEEE Trans. Power Appar. Syst.; (United States)

OSTI ID:7327254

Melvold, D J ^[1]; Shockley, P R; Long, W F; Hingorani, N G

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1. Dept. of Water and Power, Los Angeles

The Pacific Intertie HVDC System has been operated in a voltage-limited three terminal configuration suitable for dc circuit breaker testing. A rectifier at Celilo, Oregon, delivered power down-line 847 miles to a current-controlling inverter at Sylmar, California. Part of the rectifier current was taken by that inverter and returned to Celilo via the ground path. The remainder of the rectifier current returned to a current-controlling inverter at Celilo along the other pole. The system approximated a 1694 mile tapped monopolar line having an inverter at the midpoint. Changes in system configuration, control, and protection are described. Results of close-in and remote fault tests are compared against computer transient simulations. The system operated essentially as predicted and as such, this modification of an existing bipolar dc system has made possible the means to make a meaningful field test of a dc circuit breaker.

• OSTI ID: 7327254
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. PAS-95:4; ISSN IEPSA
• Country of Publication: United States
• Language: English

Related Subjects

200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
CIRCUIT BREAKERS
CONTROL EQUIPMENT
CONTROL SYSTEMS
DC SYSTEMS
ELECTRICAL EQUIPMENT
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
HVDC SYSTEMS
NORTH AMERICA
OPERATION
OVERVOLTAGE
PERFORMANCE TESTING
POWER SYSTEMS
SIMULATION
SURGES
TESTING
TRANSIENTS
USA