Invention Grant
- Patent Title: Branch circuit emergency lighting transfer switch utilizing relay controls and safety relay for load power control
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Application No.: US17778440Application Date: 2020-11-20
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Publication No.: US12015305B2Publication Date: 2024-06-18
- Inventor: James Nourse , Tom Stoll , Madan Venn , Mohammad Amini
- Applicant: SIGNIFY HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: SIGNIFY HOLDING, B.V.
- Current Assignee: SIGNIFY HOLDING, B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP 175957 2020.05.22
- International Application: PCT/EP2020/082824 2020.11.20
- International Announcement: WO2021/099537A 2021.05.27
- Date entered country: 2022-05-20
- Main IPC: H02J9/06
- IPC: H02J9/06 ; H05B47/105
Abstract:
A device, system and method for sequenced switching of a transfer switch. The method includes receiving a first monitoring signal indicating either one of an actuation of a fire alarm system or a first change of state in a primary power source from an on state to an off state. The method includes opening a first control relay connected to the primary power source and a second control relay connected to the secondary power source. The method further includes switching a safety relay from a first connection to the primary power source to a second connection to the secondary power source. The method further includes closing the first and second control relays so that the secondary power source energizes the lighting load.
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