Commutation circuit for an HVDC circuit breaker
Patent
·
OSTI ID:7009315
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
- 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
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
24 POWER TRANSMISSION AND DISTRIBUTION
240202* -- Power System Networks
Transmission & Distribution-- DC Systems-- (1990-)
CAPACITORS
CIRCUIT BREAKERS
CURRENTS
DC SYSTEMS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
HVDC SYSTEMS
OPERATION
POWER SYSTEMS
240202* -- Power System Networks
Transmission & Distribution-- DC Systems-- (1990-)
CAPACITORS
CIRCUIT BREAKERS
CURRENTS
DC SYSTEMS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
HVDC SYSTEMS
OPERATION
POWER SYSTEMS