Commutation circuit for an HVDC circuit breaker

Title: Commutation circuit for an HVDC circuit breaker

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Abstract

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.

Inventors:: Premerlani, W.J.

Issue Date:: 1981-11-10

Research Org.:: General Electric Co

OSTI Identifier:: 7009315

Patent Number(s):: 4300181 A

Application Number:: PPN: US 6-098219

Assignee:: General Electric Co., Schenectady, NY (United States) HQPR; EDB-94-123145

DOE Contract Number:: AC01-76ET29054

Resource Type:: Patent

Resource Relation:: Patent File Date: 28 Nov 1979

Country of Publication:: United States

Language:: English

Subject:: 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-)

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                    Premerlani, W.J. Commutation circuit for an HVDC circuit breaker.  United States: N. p., 1981. 
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                    Premerlani, W.J. Commutation circuit for an HVDC circuit breaker.  United States.

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                    Premerlani, W.J. Tue .  
        "Commutation circuit for an HVDC circuit breaker".  United States.

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@article{osti_7009315,

  title        = {Commutation circuit for an HVDC circuit breaker},

  author       = {Premerlani, W.J.},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1981},

  month        = {11}

}

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Commutation circuit for an HVDC circuit breaker

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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.
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