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07-24-2018, 07:01 AM
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#29
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Oct 2014
Location: Lake McClure, CA
Posts: 1,449
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10 1/8" H, 8 1/8" W, 5" D The handle adds 1 3/4" to the height. Hope this helps.
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2018 Dutch Star 4369 Spartan Chassis
2016 Jeep Cherokee, 1952 Willys CJ3A
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08-12-2018, 07:05 PM
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#30
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Senior Member
Join Date: Mar 2017
Location: OTR Western US
Posts: 304
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Just installed mine today. The instructions from Hughes for the 50A install kit don't appear correct, and Hughes never answered my questions by phone or email. It's a heck of a trick to route the cord in the connection box, and the length of cord and exposed line is incorrect. The person answering their phone wasn't equipped to answer my question, basically why their instructions were wrong and what the correct instructions were, and it was suggested I send an email. Still nothing.
Everything worked out despite not understanding when I first turned it on that I was getting 130V at a receptacle. I have mine set up to remove the autoformer if ever needed, and plugged straight in to power the rig up. Without the autoformer I was getting 122V. I plugged the autoformer back in-line and am now showing 126V.
The picture doesn't show the added brackets and strap to hold it down, and the line plugging into the front of the autoformer is now screwed to the wall keeping it away from the cord box.
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08-12-2018, 08:34 PM
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#31
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 24,063
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Okay....I have a question for the electrical engineers. I basically know how the AutoFormer works and why they're used. My question.....in normal use, lets say while parked at home, does the AutoFormer use additional power to operate, even with a good power source?
This question has come up before and I never got a straight answer. The reason for the question.....if you're at home where you TRUST your power, does leaving the AutoFormer inline, while plugged in at the house, cause you to use more power than if you were plugged in without it. If the power use was substantial, could mean an increased monthly electrical bill.
Please don't laugh at my question.....electrical is not my thing.
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Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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08-12-2018, 09:18 PM
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#32
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Jun 2016
Location: Out there, somewhere
Posts: 806
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Transformers are passive devices.
There are step up and down XFRS but passive.
On another note. I installed both the progressive Ind 50 HWC and the HA in the bay of my 4018 using electric stove/dryer pig tails with 4x4 boxes and the NEMA 50 Amp straight blade receptacles that allow me to remove one of both of the components of it fails.
John
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John and Lynn, Fulltimers
2017 Newmar Dutch Star 4018
2011 Jeep Grand Cherokee toad
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08-12-2018, 10:51 PM
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#33
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Member
Newmar Owners Club
Join Date: Feb 2018
Posts: 81
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Quote:
Originally Posted by Dutch Star Don
Okay....I have a question for the electrical engineers. I basically know how the AutoFormer works and why they're used. My question.....in normal use, lets say while parked at home, does the AutoFormer use additional power to operate, even with a good power source?
This question has come up before and I never got a straight answer. The reason for the question.....if you're at home where you TRUST your power, does leaving the AutoFormer inline, while plugged in at the house, cause you to use more power than if you were plugged in without it. If the power use was substantial, could mean an increased monthly electrical bill.
Please don't laugh at my question.....electrical is not my thing.
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Good question. There will be some power consumed by the sensing circuit and those purdy green lights on the box.
My guess it draws < .1 amp which equates to 2.4 amps per day max as its active 24hrs a day. The only way to really know is by measuring the amps with a meter or getting the info from Hughes.
I'll keep the math simple. 1KW of power on 120V circuit equates to about 8.3 Amps. At 2.4 amps it draws 1 kw every 3+ days or around 10kw a month. In FL that would be about $1.50 a month.
If it's disconnected and there is a power surge or in FL lighting strike nearby your not protected.
My recommendation is to keep it connected, drink a cold one and forget about it.
Hope that helps.
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08-13-2018, 05:33 AM
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#34
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Senior Member
Newmar Owners Club Ford Super Duty Owner
Join Date: Aug 2015
Posts: 1,152
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The transformer in the autoformer probably runs at 95-98% efficiency and there is a little additional power used by the control circuit so you will use more power with the autoformer in place. I always use mine if I need the voltage boost, but I also have the progressive hardwired EMS installed.
https://www.electricaleasy.com/2014/...iency.html?m=1
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2017 Newmar Bay Star 3113.
Former owner of a Morgan powered Bennington
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08-13-2018, 05:40 AM
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#35
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Senior Member
Join Date: Jun 2017
Location: Daytona Beach FL
Posts: 310
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What voltage is TOO high? I understand too low of voltage = more amps drawn, burns stuff up, etc. But is 126 volts too high? 130? It always boosts the voltage a small amount, and some campgrounds I'll will already be at 122/123 volts and I'll get 126, 127 if this is being used.
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2023 Renegade Classic
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08-13-2018, 08:02 AM
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#36
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Senior Member
Join Date: Mar 2017
Location: OTR Western US
Posts: 304
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Quote:
Originally Posted by lslblues
What voltage is TOO high? I understand too low of voltage = more amps drawn, burns stuff up, etc. But is 126 volts too high? 130? It always boosts the voltage a small amount, and some campgrounds I'll will already be at 122/123 volts and I'll get 126, 127 if this is being used.
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As noted, my same experience. Can anyone clarify the "extra" volts we're seeing?
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08-13-2018, 08:19 AM
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#37
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Senior Member
Newmar Owners Club Spartan Chassis
Join Date: Oct 2014
Location: Lake McClure, CA
Posts: 1,449
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Quote:
Originally Posted by Dutch Star Don
Okay....I have a question for the electrical engineers. I basically know how the AutoFormer works and why they're used. My question.....in normal use, lets say while parked at home, does the AutoFormer use additional power to operate, even with a good power source?
This question has come up before and I never got a straight answer. The reason for the question.....if you're at home where you TRUST your power, does leaving the AutoFormer inline, while plugged in at the house, cause you to use more power than if you were plugged in without it. If the power use was substantial, could mean an increased monthly electrical bill.
Please don't laugh at my question.....electrical is not my thing.
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When I get home (in a few weeks) I'll will check the difference with and without the H.A. I will leave mine connected all the time as you never know when the voltage could go low. I have had one low leg at home several times when PGE had a problem with their underground wires.
__________________
2018 Dutch Star 4369 Spartan Chassis
2016 Jeep Cherokee, 1952 Willys CJ3A
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08-13-2018, 08:35 AM
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#38
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Senior Member
Join Date: Jul 2018
Posts: 3,165
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I have 132 volts with no load on my permanent campsite with my transformer. Your voltage will always be different at different campsites and how many campers are using electricity. You will always find different reading except at home. That voltage is pretty steady. A range of 108 to 132 is acceptable. 127 is concerned nominal voltage by Florida Power and Light. 110 and 115 are terms of the past. Now it is called 120 volts. 120/240. The transformer uses little to no electricity. My transformer is not Hughes and has no lights or monitoring. It is a universal type with many applications. Also, your voltage will differ depending on the size and type of wire coming to your campsite. ALM vs Copper wire and DISTANCE form power company source. That is not at your pedestal. It's usually at the office or maintenance shed. Measure your voltage with no load. Then plug in your camper and turn on the AC, toaster and coffee pot. Then test the voltage. Get back to us on what you find. Electric 101.
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2011 Keystone Sprinter 323 BHS. Port Charlotte Fl/Hinsdale MA. Retired Master Electrician. All Motor homes are RV's. All RV's are not Motor homes.
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