- Patent Title: Solid-state circuit breaker trips an air gap actuator and solid-state switching components at the same time or the solid-state switching components with a delay
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Application No.: US17648204Application Date: 2022-01-18
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Publication No.: US11798756B2Publication Date: 2023-10-24
- Inventor: Guang Yang
- Applicant: Siemens Industry, Inc.
- Applicant Address: US GA Alpharetta
- Assignee: Siemens Industry, Inc.
- Current Assignee: Siemens Industry, Inc.
- Current Assignee Address: US GA Alpharetta
- Main IPC: H01H9/54
- IPC: H01H9/54 ; H02H3/42 ; H01H71/12

Abstract:
A solid-state circuit breaker (SSCB) comprises a breaker housing, line-in and line-out terminals and one or more solid state switching components. The SSCB further comprises an air gap disposed between the line-in and line-out terminals and coupled in series with the solid-state switching components to complete a current conducting path when closed. The air gap includes an air gap driving mechanism. The solid-state circuit breaker further comprises an air gap actuator to interact with the air gap driving mechanism. The SSCB further comprises a controller that controls the air gap actuator and is configured to: (a). send a tripping signal to the air gap actuator and the one or more solid state switching components at substantially the same time or (b). send a tripping signal to the air gap actuator a short amount of time earlier than sending the tripping signal to the one or more solid state switching components.
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