Power transfer system
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United States of America Patent
Stats
-
Apr 6, 1999
Grant Date -
N/A
app pub date -
Jan 27, 1997
filing date -
Jan 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power transfer system includes four relays for switching power from a primary power supply to an auxiliary power supply having a starter motor and a kill switch. A first relay couples the primary power supply to the load. A second relay is responsive to the failure of the primary power supply and activates the starter motor and deactivates the kill switch. A third relay is responsive to power supplied by the auxiliary power supply and couples the auxiliary power supply to the load. A fourth relay is responsive to power supplied by the auxiliary power supply and decouples the primary power supply from the load and deactivates the starter. An optional time delay relay is provided for delaying the activation of the starter motor upon the loss of power supplied by the primary power supply.
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