Capacitor harvester
AssigneeHubbell Incorporated
InventorDavid A. Rhein
Life of this patent
Estimating the term…
Abstract
A circuit interrupting device including a vacuum interrupter, a capacitor, and an insulating housing. The vacuum interrupter includes a vacuum bottle and first and second contacts disposed within the vacuum bottle. The second contact is movable relative to the first contact between a closed position and an open position. The capacitor is electrically connected in parallel with the vacuum interrupter and wound around an outer surface of the vacuum bottle. The insulating housing encloses the capacitor and the vacuum interrupter.
Claims17
A circuit interrupting device comprising:
- a vacuum interrupter including
- a vacuum bottle, and
- a first contact and a second contact disposed within the vacuum bottle, the second contact movable relative to the first contact between a closed position and an open position;
- a cylindrical capacitor electrically connected in parallel with the vacuum interrupter and wrapped around an outer surface of the vacuum bottle, wherein the cylindrical capacitor includes a first cylindrical capacitor plate and a second cylindrical capacitor plate, the second cylindrical capacitor plate being radially outside the first cylindrical capacitor plate, wherein the cylindrical capacitor further includes a first dielectric material layer that is disposed between the outer surface of the vacuum bottle and the first cylindrical capacitor plate;
- and
- an insulating housing that encloses the capacitor and the vacuum interrupter.
A recloser comprising:
- a terminal configured to electrically connect the recloser to a power line included in a power distribution network;
- one or more electronic components;
- a vacuum interrupter electrically connected between the terminal and the one or more electronic components, the vacuum interrupter including a first contact and a second contact movable relative to the first contact between a closed position and an open position;
- a cylindrical capacitor electrically connected in parallel with the vacuum interrupter, wherein the cylindrical capacitor includes a first cylindrical capacitor plate and a second cylindrical capacitor plate, the second cylindrical capacitor plate being radially outside the first cylindrical capacitor plate, wherein the cylindrical capacitor further includes a first dielectric material layer that is disposed between the outer surface of the vacuum interrupter and the first cylindrical capacitor plate;
- and
- an insulating housing that encloses the cylindrical capacitor and the vacuum interrupter.
A method of manufacturing a vacuum interrupter including a vacuum bottle enclosing first and second contacts, the method comprising:
- applying a first dielectric material layer to an outer surface of the vacuum bottle;
- wrapping a first capacitor plate around the vacuum bottle;
- wrapping a second capacitor plate around the vacuum bottle;
- and
- enclosing the vacuum bottle, the first capacitor plate, and the second capacitor plate in an insulating housing.
A circuit interrupting device comprising:
- a vacuum interrupter including
- a vacuum bottle, and
- a first contact and a second contact disposed within the vacuum bottle, the second contact movable relative to the first contact between a closed position and an open position;
- a cylindrical capacitor electrically connected in parallel with the vacuum interrupter and wrapped around an outer surface of the vacuum bottle;
- and
- an insulating housing that encloses the capacitor and the vacuum interrupter,
- wherein the cylindrical capacitor includes a first cylindrical capacitor plate, a second cylindrical capacitor plate, a first dielectric material layer that is disposed between the outer surface of the vacuum bottle and the first cylindrical capacitor plate, a second dielectric material layer that is disposed between the first and second cylindrical capacitor plates, and a third dielectric material layer that is disposed between the second cylindrical capacitor plate and an inner surface of the insulating housing.
Dependencies are inferred from the claim text.