Electrical Equipment (Automatic Transfer Switch)

AI Thread Summary
The Automatic Transfer Switch (ATS) is primarily used to manage the transition between power sources, such as switching to an emergency generator during a power outage. It ensures that the house is not connected to both the power grid and the generator simultaneously, preventing backfeed. Scenarios for ATS operation include switching when a UPS goes into battery mode, managing load drops during source changes, and adjusting voltage and frequency settings. The discussion highlights the importance of understanding these operational scenarios for effective use of the ATS. Proper configuration and usage of the ATS are crucial for safe and reliable power management.
Danielle Agamon
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What are the scenarios for the ATS (Automatic Transfer Switch to operate?)
 
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Depends on what one is doing with it. A typical application of an ATS to start up an emergency generator, and switch load onto it once voltage has stabilized in the event of a power outage.
 
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If you have an emergency generator, such as @Asymptotic mentioned, it is forbidden to have your house connected to the power grid and the generator at the same time. The ATS is used to switch your house loads from the grid to the generator, or the generator to the grid.
 
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Somehow, to me this seems like a question off of a test.
 
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Danielle Agamon said:
What are the scenarios for the ATS (Automatic Transfer Switch to operate?)
Averagesupernova said:
Somehow, to me this seems like a question off of a test.
Agreed. @Danielle Agamon -- what is the context of your question?
 
Danielle Agamon said:
What are the scenarios for the ATS (Automatic Transfer Switch to operate?)
The scenarios to operate ATS are
1.Switching of the ATS when the UPS goes to or from "on battery" mode
2.Dropping the load when the ATS switches sources while both appear to have power
3.Revise the voltage transfer range from medium to wide, revise frequency deviation from +/-2 Hz to +/-3 Hz on the ATS
4. Set the source preference from source A to none on the ATS
 

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