Circuit breaker with arc eliminator and power receiving/distributing equipment using same
AssigneeMitsubishi Electric Corporation
InventorShinichi Numata
Life of this patent
Estimating the term…
Abstract
Power receiving/distributing equipment is composed of a switchgear incorporated for each major electric path section, wherein, when arc fault occurs on an electric path to which a circuit breaker is connected, a high-speed closing device closes to detour arc current so as to flow to a ground conductor, thereby eliminating arc at a fault electric path portion. The high-speed closing device is connected to one pole or both poles of a breaking portion of the circuit breaker, and is incorporated into an insulating support member on a corresponding pole electric path so as to be able to be drawn as a whole.
Claims6
A circuit breaker with arc eliminator, comprising
- a closing device which, when an arc fault occurs on an electric path to which the circuit breaker is connected, closes to cause arc current to detour via a body ground contact provided to the circuit breaker and flow to a ground conductor, thereby eliminating arc at a fault electric path portion, wherein
- the closing device is connected to one pole or both poles of a breaking portion of the circuit breaker, and is incorporated into an insulating support member on a corresponding pole electric path,
- the closing device being assembled in a detachable manner from the insulating support member with the insulating support member formed as an insulating case-shaped component by casting or molding, the closing device configured to be replaceable after use, and
- the circuit breaker is formed in a drawer type as a whole.
Power receiving/distributing equipment, comprising:
- a switchgear having a circuit breaker with arc eliminator incorporated therein for each of major electric path sections, the circuit breaker including a closing device which, when an arc fault occurs on an electric path to which the circuit breaker is connected, closes to cause arc current to detour via a body ground contact provided to the circuit breaker and flow to a ground conductor, thereby eliminating arc at a fault electric path portion, wherein
- the closing device is connected to one pole or both poles of a breaking portion of the circuit breaker, and is incorporated into an insulating support member on a corresponding pole electric path,
- the closing device being assembled in a detachable manner from the insulating support member with the insulating support member formed as an insulating case-shaped component by casting or molding, the closing device configured to be replaceable after use, and
- the circuit breaker is formed in a drawer type as a whole.
Dependencies are inferred from the claim text.