Commutation circuit for an HVDC circuit breaker

Patent · Tue Nov 10 00:00:00 EST 1981

OSTI ID:7009315

Premerlani, W J

A commutation circuit for a high voltage DC circuit breaker incorporates a resistor capacitor combination and a charging circuit connected to the main breaker, such that a commutating capacitor is discharged in opposition to the load current to force the current in an arc after breaker opening to zero to facilitate arc interruption. In a particular embodiment, a normally open commutating circuit is connected across the contacts of a main DC circuit breaker to absorb the inductive system energy trapped by breaker opening and to limit recovery voltages to a level tolerable by the commutating circuit components. 13 figs.

• Research Organization: General Electric Co., Boston, MA (United States)
• DOE Contract Number: AC01-76ET29054
• Assignee: General Electric Co., Schenectady, NY (United States)
• Patent Number(s): US 4300181; A
• Application Number: PPN: US 6-098219
• OSTI ID: 7009315
• Resource Relation: Patent File Date: 28 Nov 1979
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
CIRCUIT BREAKERS
OPERATION
HVDC SYSTEMS
CAPACITORS
ELECTRIC ARCS
CURRENTS
DC SYSTEMS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
POWER SYSTEMS
240202* - Power System Networks
Transmission & Distribution- DC Systems- (1990-)