System and method for protecting electromechanical switchgear
AssigneeLeach International Corporation
InventorsTony Hana, Imtiaz Ahmad Khan, Anhtai Le Tran
Life of this patent
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Abstract
A switching system includes: an electromechanical switchgear including main contacts and auxiliary contacts, the main contacts being coupled between a first terminal of the switching system and a second terminal of the switching system and configured to selectively open or close in response to a control signal; and a solid-state switch electrically connected in series with the auxiliary contacts to form a solid-state-auxiliary pair, the solid-state-auxiliary pair being coupled between the first terminal and a second moveable contact of the main contacts.
Claims20
A switching system comprising:
- an electromechanical switchgear comprising main contacts and auxiliary contacts, the main contacts being coupled between a first terminal of the switching system and a second terminal of the switching system and configured to selectively open or close in response to a control signal;
- and
- a solid-state switch electrically connected in series with the auxiliary contacts to form a solid-state-auxiliary pair, the solid-state-auxiliary pair being coupled between the first terminal and a second moveable contact of the main contacts.
A switching system comprising:
- an electromechanical switchgear comprising main contacts and auxiliary contacts, the main contacts being coupled between a first terminal of the switching system and a second terminal of the switching system and configured to selectively open or close in response to a control signal;
- and
- a solid-state switch electrically connected in series with the auxiliary contacts to form a solid-state-auxiliary pair, the solid-state-auxiliary pair being coupled between the second terminal and a first moveable contact of the main contacts.
A switching system comprising:
- an electromechanical switchgear comprising main contacts and auxiliary contacts, the main contacts being coupled between a first terminal of the switching system and a second terminal of the switching system and configured to selectively open or close in response to a control signal, and the auxiliary contacts being coupled between the second terminal and a second moveable contact of the main contacts via an RC network;
- and
- a solid-state switch electrically connected between the first terminal and the second moveable contact of the main contacts.
Dependencies are inferred from the claim text.