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Old 04-27-2022, 07:53 AM   #1
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Hughes autoformers

Does anyone use the hughes autoformer, it boosts low voltage by 10%.

After recently purchasing a membership at a resort in Arizona, we discovered all of the water front power is only 30-amp post. When we plugged in my voltage meter fluctuated all day, sometimes as low as 107.

I started looking into boosters and found the hughes, which is the only one with multiple windings (instead of one) and surge protector.

Just trying to get some opinions before forking out several hundred big ones.

Thanks
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Old 04-27-2022, 08:16 AM   #2
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I don't have a Hughes but I had to buy one while staying at a campground in the UP of MI about 13 years ago. We still carry it and use it as needed.
If you have fluctuating voltage and low voltage and can't move to a different location you probably don't have a choice. Running low voltage is not good on the appliances, plush it increases the amperage pulled which also hurts if your are trying to get by on a 30 amp circuit.



I have installed a Progressive Surge Protector that also senses voltage and will shut power off it gets too low but does not correct voltage.
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Old 04-27-2022, 08:28 AM   #3
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I don't have a Hughes. However, Hughes has a reasonably good reputation.
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Old 04-27-2022, 09:24 AM   #4
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I have the 30a model. Works very well. In the summer when the park gets very low the boost is activated most of the time. Worth the extra cost over a surge protector only and has a replaceable surge card already. I shortened my shore cord so the unit can now be locked in the utility bin.
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Old 04-28-2022, 03:20 AM   #5
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Thank you for the responses, I purchased the 50A from CW, they had it on sale plus an additional 10% promo code, couldn't pass that up!

We are returning to the resort in a couple weeks, so I'll know for certain if it works. Yesterday I installed a new Samsung fridge and want to protect it, twice the cost of the booster.

Thanks again, safe travels
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Old 04-28-2022, 10:40 AM   #6
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We use the Hughes Autoformer and have not had a single low voltage issue when it is in use, while neighbors will see low voltage. The older parks are simply not wired to carry the load from the newer and larger RVs, some with 3 A/C units.

Ours is mounted in the basement and set up so that I can easily hook it up or unhook it. Some parks will say that you cannot use them. It is out of sight and out of mind when it is mounted in the basement. It does no harm to the undersized park distribution system.

Ken
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Old 04-28-2022, 10:46 AM   #7
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Yes, I've a Hughes Autoformer. Obtained to mitigate the low voltage situations found primarily at 30a sites. Works perfectly. I've it wired into the power bay so always in use.
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Old 04-28-2022, 12:09 PM   #8
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Quote:
Originally Posted by gweedo295 View Post
Thank you for the responses, I purchased the 50A from CW, they had it on sale plus an additional 10% promo code, couldn't pass that up!

We are returning to the resort in a couple weeks, so I'll know for certain if it works. Yesterday I installed a new Samsung fridge and want to protect it, twice the cost of the booster.

Thanks again, safe travels
How much was it?

The main item that gets destroyed by low voltage is your air conditioner. Low voltage causes it to draw too much current and burns out the motor.

Let us know how well the autoformer works. What brand is it?
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Old 04-28-2022, 12:38 PM   #9
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We have used the Hughes (both the 50a and 30a versions) for many years and it has saved us more than a few times.
Amazon shows it available for a good price. There are two versions, one has the surge protection( has sp in the model number) and the other does not. A good thing about the surge protection version is the surge unit part is replaceable if it goes down protecting your stuff.
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Old 04-28-2022, 02:22 PM   #10
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I carry a 50A Hughes autoformer as well.

Only plug it in when I need it. Usually on 30A sites, but do remember needing it once at a 50A site, where just one leg had low voltage.
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Old 12-06-2022, 12:08 AM   #11
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Cart before the Horse

I'm purchasing the Hughes Autoformer 50 Amp version

For those folks using the Hughes Autoformer and connect an additional surge protector like the Progressive Industries RV Surge Protector 50 Amp.

When you hook up your shore power what order do you install the system?

Method 1
Pedestal - Surge protector - Autoformer

or

Method 2
Pedestal - Autoformer - Surge Protector


I realize both units will provide surge protection, however the Progressive unit protects the coach from voltage drops below 104vAC for 6 seconds or above 132vAC for 3 seconds then De-energizes the unit.

Due to the cost of the Huges unit I'm considering installing the Progressive Industries Surge Protectors first in the electrical string offering voltage distrubance low/hi protection ahead of this Autoformer unit. With the method you would be subject to nuisance De-Energizing for low voltage while providing your rig.

On the flip side this Autoformer is not listed as a voltage buck Autoformer meaning if you see high voltage it will not react or lower the voltage to a normal range. Thus with Method 1 the Progressive Industries Surge Protector would De-Energize above 132vAC. Protecting the Autoformer and everything behind it.

Please share your experience with this unit.

Many thanks

Devoir
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Old 12-06-2022, 12:31 AM   #12
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Quote:
Originally Posted by Devoir View Post
I'm purchasing the Hughes Autoformer 50 Amp version



For those folks using the Hughes Autoformer and connect an additional surge protector like the Progressive Industries RV Surge Protector 50 Amp.



When you hook up your shore power what order do you install the system?



Method 1

Pedestal - Surge protector - Autoformer



or



Method 2

Pedestal - Autoformer - Surge Protector





I realize both units will provide surge protection, however the Progressive unit protects the coach from voltage drops below 104vAC for 6 seconds or above 132vAC for 3 seconds then De-energizes the unit.



Due to the cost of the Huges unit I'm considering installing the Progressive Industries Surge Protectors first in the electrical string offering voltage distrubance low/hi protection ahead of this Autoformer unit. With the method you would be subject to nuisance De-Energizing for low voltage while providing your rig.



On the flip side this Autoformer is not listed as a voltage buck Autoformer meaning if you see high voltage it will not react or lower the voltage to a normal range. Thus with Method 1 the Progressive Industries Surge Protector would De-Energize above 132vAC. Protecting the Autoformer and everything behind it.



Please share your experience with this unit.



Many thanks



Devoir
Autoformer goes first to allow it to boost voltage to the Progressive EMS when low.
If the EMS is first, it will shut down before the Autoformer can boost it to normal levels.

I tend to just use the EMS unless voltage is low. It's heavy...
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Old 12-06-2022, 05:36 AM   #13
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I agree, autoformer goes first, then EMS second.

There can be a problem if the voltage at pedestal is already high, as the Hughes will boost voltage about 2% all the time. If this pushes voltage above 132, the EMS will shut down.

Right now Iím using the Hughes because of the physical configuration of the pedestal, itís so low to the ground, that itís impossible to plug in the EMS. The cord of the Hughes will plug in, so Iím using it. The voltage at this pedestal is above 120vac which means at the coach Iím seeing between 124-127vac.


Usually I donít connect the Hughes unless Iím seeing low voltage with the EMS. It stays in the closet.
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Old 12-06-2022, 06:41 AM   #14
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I haven't had to use the autoformer yet, but I have one just in case. I bought the mounting bracket and plug assembly to hard wire it to the coach, but I decided not to do that (yet). I keep it in the electrical cord bay. When I need it, I plan to keep it in the bay and bay door locked since it is so expensive. The manual states it needs to be in a vented compartment. I e-mailed Hughes and they confirmed it will be just fine in the electrical compartment and door closed.
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