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Old 08-07-2012, 12:33 PM   #1
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Sequence of wiring EMS and Voltage Controllers


I have read many postings all over the web regarding voltage controllers and EMS's on the do's and doníts ...... that I'm really frustrated! Can someone please explain what sequence to have these CORRECTLY installed? If you put the EMS first and it shuts down the shore power under low voltage, then how is the voltage controller supposed to work?? If you put the voltage controller first.... what protects it from being "spiked or surgedĒ??
Also, where is the best/cheapest dealer for both of these?
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Old 08-07-2012, 03:59 PM   #2
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I'm a bit confused. With an EMS (surge protector, not energy management or load sheader) why would you want/need a voltage regulator? A surge protector will only allow voltage in that will not hurt your 110v appliances. So to try to regulate that seems redundant. If you have a special reason for both it may help us understand a bit better.

That said, if you had the regulator first, the surge protector would always be happy. The problem is, if you got hit with 1000v, will this voltage regulator handle that?

If the surge protector was first, the voltage regulator would be redundant. Unless you had some special need to maintain say 115v rather than say a range from 108 to 122v.
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Old 08-08-2012, 06:54 PM   #3
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I'm confused as well.

But if OP is calling an Autotransformer a voltage controller, then that goes first.
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Old 08-08-2012, 07:32 PM   #4
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I guess we'll be in the dark until the OP comes back.
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Old 08-08-2012, 08:06 PM   #5
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all resolved. I called Todd yesterday!
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Old 08-08-2012, 09:15 PM   #6
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Park---Autoformer (Voltage controller)---Power guard (Surge supressor is a poor name for them----Coach (RV)

The EMS if such exists, is inside the coach. You don't get to pick where it goes.

Just read about a new auto transfer switch, It combines the functions of the ATS and the Power guard.. Kind of neat, but I think I like discreate devices better.
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Old 08-09-2012, 06:50 AM   #7
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Quote:
Originally Posted by friday
all resolved. I called Todd yesterday!
That's great Friday, but you're leaving all of us here hanging. It's generally expected on the forum to share resolutions to problems to help others in the future.
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