DUAL POWER TRANSFER SWITCH
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United States of America Patent
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Issued Date -
Oct 10, 2024
app pub date -
Jun 17, 2024
filing date -
Jan 28, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A dual power transfer switch includes a contact system, which has a contact main shaft rotatably arranged to move contact assemblies. The contact main shaft has a first closed position, a second closed position, and an open position. At the first closed position, the contact assemblies connect a first power source to a load. At the second closed position, the contact assemblies connect a second power source to the load. At the open position, the contact assemblies disconnects from the load. The dual power transfer switch also includes a contact main shaft locking device configured to keep the contact main shaft at the open position. The contact main shaft locking device includes a locking link and a first actuator. The dual power transfer switch includes a contact main shaft interlock device.
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