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Re: How To triping the Automatic Transfer Switch w/ a Portable Genrator

 
 
Carl
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      07-20-2005, 10:41 PM

<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ups.com...
>I have just installed an Generac automatic transfer switch (ATS) for my
> house. I am going to use this with my portable generator. Everything
> has been tested and works fine.
>
> Obviously the portable generator does not have the connections to trip
> the internal coil of the ATS. Generac has provided a manual way to do
> this however it requires that I remove the cover from the panel and use
> an insolated screw driver of sorts.
>
> My Question:
>
> How can I hook up a switch that I can push on the outside of the ATS
> that will mimic my manual pulling of the switch?
>



This is the way a standard automatic transfer switch should operate:

When utility voltage is lost the ATS closes a start contact to the
generator. When the ATS sees stable power from the generator is will use
the generator power to transfer the load to the generator. When utility
power returns for some programmed period of time, the ATS will transfer the
load to the utility, run the generator for a cool-down period and open the
start contacts, shutting down the generator.

In your case your generator may not have remote start capability. If the
utility fails you would plug in your portable, if it's not connected
directly, start it, and when the ATS sees good voltage it should transfer.
When utility returns the ATS will transfer back to utility. It will be up
to you to cool down and shut off the generator.

You can test this by hooking up your generator, starting it and opening the
utility breaker to the ATS. It should transfer to your generator.
Reclosing the utility breaker should cause the ATS to transfer back to
utility after a given time period.

If you have any questions, please supply the model number of the transfer
switch.

Carl


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