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US 7,102,101 B1Granted
High voltage circuit breaker with internal tank heater
AssigneePennsylvania Breaker LLC
InventorsDavid S. Johnson, Jeffry R. Meyer, Daniel C. Schiffbauer
Life of this patent
Estimating the term…
Abstract
A high voltage circuit breaker with a gas-insulated tank is provided. Enclosed with the tank is an elongated heater having at least one heating element enclosed in an outer tube. The heater is located coaxially within the tank and is surrounded by the insulating gas.
Claims20
A circuit breaker comprising:
- a contact mechanism movable between an open position and closed position;
- a tank having an interior chamber enclosing the contact mechanism, wherein the interior chamber designed to accept an insulating gas;
- and
- a heating assembly comprising a heating element enclosed in an outer tube, wherein the heating assembly is located within the tank, wherein the outer tube is substantially surrounded by the insulating gas when the interior chamber is filled with the insulating gas.
1 more element
A circuit breaker comprising:
- a contact mechanism movable between an open position and closed position;
- a tank having an interior chamber enclosing the contact mechanism, wherein the interior chamber designed to accept an insulating gas;
- and
- a heating assembly comprising a heating element enclosed in an outer tube, wherein the heating assembly is located within the tank, wherein the heating element is operable to selectively supply different heating requirements over the length of the tube, and wherein the outer tube is substantially surrounded by the insulating gas when the interior chamber is filled with the insulating gas.
1 more element
A circuit breaker comprising:
- a contact mechanism movable between an open position and closed position;
- a tank having an interior chamber enclosing the contact mechanism, wherein the interior chamber designed to accept an insulating gas;
- and
- a heating assembly comprising a heating element enclosed in an outer tube that is formed to attract and trap foreign particles, wherein the heating assembly is located within the tank.
1 more element
Dependencies are inferred from the claim text.