Electromagnetic operation device for vacuum circuit breaker
AssigneeMitsubishi Electric Corporation
InventorYasushi Takeuchi
Life of this patent
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Abstract
There is provided an electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device including a closing drive coil for the vacuum switch tube; and a first temperature sensor that measures a temperature surrounding the closing drive coil, wherein a current caused to flow through the closing drive coil is controlled based on the temperature measured by the first temperature sensor.
Claims18
An electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device comprising:
- a closing drive coil for the vacuum switch tube;
- and
- a first temperature sensor that measures a temperature surrounding the closing drive coil;
- wherein a current caused to flow through the closing drive coil is controlled based on the temperature measured by the first temperature sensor.
An electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device comprising:
- an opening drive coil for the vacuum switch tube;
- and
- a third temperature sensor that measures a temperature surrounding the opening drive coil;
- wherein a current caused to flow through the opening drive coil is controlled based on the temperature measured by the third temperature sensor.
An electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device comprising:
- a closing drive coil for the vacuum switch tube;
- a first temperature sensor that measures a temperature surrounding the closing drive coil;
- wherein a current caused to flow through the closing drive coil is controlled based on the temperature measured by the first temperature sensor,
- an opening drive coil for the vacuum switch tube;
- and
- a third temperature sensor that measures a temperature surrounding the opening drive coil;
- wherein a current caused to flow through the opening drive coil is controlled based on the temperature measured by the third temperature sensor.
An electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device comprising:
- a closing drive coil for the vacuum switch tube;
- a closing drive capacitor for causing a contact-closing drive current to flow through the closing drive coil;
- a closing charging circuit that charges the closing drive capacitor;
- a first temperature sensor that measures a temperature surrounding the closing drive coil;
- and
- a first temperature-correction indication unit that indicates to the closing charging circuit, a charge voltage correction value for the closing drive capacitor, on the basis of the temperature measured by the first temperature sensor.
An electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device comprising:
- an opening drive coil for the vacuum switch tube;
- an opening drive capacitor for causing a contact-opening drive current to flow through the opening drive coil;
- an opening charging circuit that charges the opening drive capacitor;
- a third temperature sensor that measures a temperature surrounding the opening drive coil;
- and
- a second temperature-correction indication unit that indicates to the opening charging circuit, a charge voltage correction value for the opening drive capacitor, on the basis of the temperature measured by the third temperature sensor.
An electromagnetic operation device for a vacuum circuit breaker, which controls by its electromagnetic operation, a speed of contact switching operation of a vacuum switch tube used in the vacuum circuit breaker, the electromagnetic operation device comprising:
- a closing drive coil for the vacuum switch tube;
- a closing drive capacitor for causing a contact-closing drive current to flow through the closing drive coil;
- a closing charging circuit that charges the closing drive capacitor;
- a first temperature sensor that measures a temperature surrounding the closing drive coil;
- a second temperature sensor that measures a temperature surrounding the closing drive capacitor;
- a first temperature-correction indication unit that indicates to the closing charging circuit, a charge voltage correction value for the closing drive capacitor, on the basis of the temperatures measured by the first temperature sensor and the second temperature sensor;
- an opening drive coil for the vacuum switch tube;
- an opening drive capacitor for causing a contact-opening drive current to flow through the opening drive coil;
- an opening charging circuit that charges the opening drive capacitor;
- a third temperature sensor that measures a temperature surrounding the opening drive coil;
- and
- a fourth temperature sensor that measures a temperature surrounding the opening drive capacitor;
- and
- a second temperature-correction indication unit that indicates to the opening charging circuit, a charge voltage correction value for the opening drive capacitor, on the basis of the temperatures measured by the third temperature sensor and the fourth temperature sensor.
Dependencies are inferred from the claim text.