Transfer switch apparatus and methods using transition time monitoring and adaptation
AssigneeEaton Corporation
InventorMark Alan Gould
Life of this patent
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Abstract
Methods of operating an automatic transfer switch (ATS) include detecting a first transition of an auxiliary contact set mechanically linked to a switch that selectively couples first and second AC power sources to an output of the ATS, determining a transition duration based on the detected first transition and a first assertion time of a first command for the first transition, identifying a second assertion time based on the determined transition duration, and asserting a second command for a second transition of the switch at the identified second assertion time.
Claims15
A method of operating an automatic transfer switch (ATS), the method comprising:
- detecting a first transition of an auxiliary contact set mechanically linked to a switch that selectively couples first and second AC power sources to an output of the ATS;
- determining a transition duration based on the detected first transition and a first assertion time of a first command for the first transition;
- identifying a second assertion time based on the determined transition duration;
- and
- asserting a second command for a second transition of the switch at the identified second assertion time.
An automatic transfer switch (ATS) comprising:
- a switch configured to selectively couple first and second AC power sources to an output of the ATS;
- an auxiliary contact set mechanically linked to a switch that selectively couples first and second AC power sources to an output of the ATS;
- and
- a controller configured to receive a signal generated by the auxiliary contact set and to control the switch, the controller further configured to determine a transition duration based on the detected first transition and a first assertion time of a first command for the first transition, to identify a second assertion time based on the determined transition duration and to assert a second command for a second transition of the switch at the identified second assertion time.
A method of operating an ATS, the method comprising:
- determining transition durations of a switch of the ATS that selectively couples first and second AC power sources to an output of the ATS from signals generated by an auxiliary contact set mechanically coupled to the switch;
- and
- controlling times at which transitions of the switch are commanded based on the determined transition durations.
Dependencies are inferred from the claim text.