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US 12,494,632 B2Granted
Chargeless interrupter device for surge arrester
AssigneeHitachi Energy Ltd
InventorsJeffrey Joseph Kester, Remo Mugwyler
Life of this patent
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Abstract
An interrupter device provides overload protection. The device includes a first terminal that is configured to establish an electrical connection to a first terminal of a high voltage surge arrester, a second terminal that is configured to establish an electrical connection to an electrical power grid line side conductor, and a chargeless disconnection trigger that causes an interruption in an electrically conductive path between the first and second terminal in response to an overload condition at the second terminal.
Claims18
An interrupter device to provide overload protection, the device comprising:
- a first terminal that is configured to establish an electrical connection to a first terminal of a surge arrester;
- a second terminal that is configured to establish an electrical connection to an electrical power grid line side conductor;
- a disconnection trigger that causes an interruption in an electrically conductive path between the second terminal and the first terminal in response to an overvoltage condition at the second terminal;
- and
- a housing that defines a cavity that is configured to include the disconnection trigger,
- the first terminal of the interrupter device comprising a first end of an elongated conductor and the second terminal of the interrupter device comprises a second end of the elongated conductor that is opposite the first terminal, and
- the disconnection trigger comprising:
- a conductive component that is electrically coupled between the first terminal of the high voltage surge arrester and a solder joint that conductively couples the conductive component to the first terminal of the interrupter device;
- and
- a flexible insulator sleeve that includes a first insulator end that corresponds to the solder joint and that is movable relative to the housing and a second insulator end that is attached to the housing, wherein the first insulator end of the flexible insulator sleeve is attached to the solder joint and the second insulator end of the flexible insulator sleeve is attached to the housing.
7 more elements
An interrupter device comprising:
- an insulating housing that is elongated and that defines a cavity that includes a first housing end that is adjacent a surge arrester terminal and a second housing end that is opposite the first housing end;
- a fixed conductive component that is positioned within the cavity between the first housing end and the second housing end;
- a first terminal that is configured to establish an electrical connection to the surge arrester terminal;
- a second terminal that is configured to establish an electrical connection to an electrical power grid conductor and that is conductively coupled to the fixed conductive component in a first position and that is not conductively coupled to the fixed conductive component in a second position that is different from the first position;
- and
- a disconnection trigger that causes an interruption in an electrically conductive path between the first terminal and the second terminal in response to an overload condition at the second terminal, wherein the disconnection trigger comprises an energy storage component that, responsive to the overvoltage condition, causes the second terminal to move from the first position to the second position.
3 more elements
A method comprising:
- providing an interrupter device comprising:
- an insulating housing that is elongated and that defines a cavity that includes a first housing end that is adjacent a surge arrester terminal and a second housing end that is opposite the first housing end;
- a fixed conductive component that is positioned within the cavity between the first housing end and the second housing end;
- a first terminal that is configured to establish an electrical connection to the surge arrester terminal;
- a second terminal that is configured to establish an electrical connection to an electrical power grid conductor and that is conductively coupled to the fixed conductive component in a first position and that is not conductively coupled to the fixed conductive component in a second position that is different from the first position;
- and
- a disconnection trigger;
- interrupting, by the disconnection trigger, an electrically conductive path between the first terminal and the second terminal in response to an overload condition at the second terminal, and
- moving, by an energy storage component of the disconnection trigger, the second terminal from the first position to the second position responsive to the overvoltage condition.
6 more elements
Dependencies are inferred from the claim text.