Foretravel Owners' Forum

Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: Peter on August 14, 2023, 10:33:18 pm

Title: AC voltage at pedestal
Post by: Peter on August 14, 2023, 10:33:18 pm
Here is the issue.
Am at a site that does not have the best ac power. It fluctuates between 99 and 115 voltage at the pedestal throughout the the day depending on when in the day it is. So the voltage measured through my power watchdog when it is steady and I turn on the ac in the coach drops the inbound voltage so low it shuts down the system
Is there an issue with my internal system??

I should also add when I disconnected ac power and fired up the generator everything worked perfectly
Title: Re: AC voltage at pedestal
Post by: Peter on August 14, 2023, 11:09:13 pm
Pic of my powerwatchdog
Title: Re: AC voltage at pedestal
Post by: oldguy on August 14, 2023, 11:12:13 pm
As soon as you turn your AC on you would drop the voltage at the pedestal. There probably
nothing wrong with your system but low voltage could harm your components.
Title: Re: AC voltage at pedestal
Post by: Peter on August 14, 2023, 11:28:56 pm
So just bad power at pedestal???
Title: Re: AC voltage at pedestal
Post by: Woody & Sitka on August 14, 2023, 11:40:18 pm
Some RV Parks were wired by morons and/or criminals, or have just been neglected.  Period.  Unplug and run the APU.  If they complain, call 911 and report the park to the county DA for code violations.  Or go somewhere else.  Your call, but NEVER stay plugged in to faulty power,  EVER!!!! 
Title: Re: AC voltage at pedestal
Post by: Peter on August 15, 2023, 12:09:20 am
Thanks oldguy

Should not the park power remain constant enough to absorb the drop in power. That seems ridiculous that the park power would not support one AC unit
Title: Re: AC voltage at pedestal
Post by: oldguy on August 15, 2023, 12:19:42 am
A lot of it is caused by the size of wire and the length of the run.
Title: Re: AC voltage at pedestal
Post by: Peter on August 15, 2023, 01:06:24 am
Hmmmm. Standard 50 amp cable into my powerwatchdog then into a 30 amp adapter into the pedestal.  Late a t night here now and the power watch says 109.
Title: Re: AC voltage at pedestal
Post by: turbojack on August 15, 2023, 04:10:53 am
I think you need to move. You do not have good power at your pedestal. You are going to burn up a AC unit or something else if you stay connected.
Title: Re: AC voltage at pedestal
Post by: juicesqueezer on August 15, 2023, 07:32:30 am
I would have already left that RV park!  Just saying................  I do have soft starts on all 3 of my airs and it makes a difference, but when I have an issue with one of those, color me GONE!
Title: Re: AC voltage at pedestal
Post by: FourTravelers on August 15, 2023, 09:36:54 am
It's a voltage drop problem at the pedestal, could be caused by the feeder to the pedestal being too small or a poor connection. The larger the amp load the greater the voltage drop will be. Try another site, it could be a problem with just that particular site. To be on the safe side, stay within +10% or -10% of the appliance rating. (120v in this case)
Title: Re: AC voltage at pedestal
Post by: Peter on August 15, 2023, 04:32:11 pm
We have running the generator during the day as this is only way to get consistent power throughout the day. At night the power seems to level out and we can plug in. Just burning fuel during the day.  Am supposed to be here for the next 8 days....everything is booked up elsewhere
Will have to deal with this way I guess. How much fuel does the 10 kw power tech burn an hour?
Title: Re: AC voltage at pedestal
Post by: turbojack on August 15, 2023, 04:42:16 pm
Will have to deal with this way I guess. How much fuel does the 10 kw power tech burn an hour?

 Close to 1 gallon per hr.  It all depends on generator load.  Ie AC compressors running or not.
Title: Re: AC voltage at pedestal
Post by: Barry & Cindy on August 15, 2023, 07:49:33 pm
We tracked our gen to 4/10 gallon per hour.

Also made an investment in a Hughes Autoformer and only use it a few times when campground had low voltage. But it saved us every time. As all motors that run at voltages under 110 volts will strain and shorten motor life.

You could try a different campsite if you can move within the park. They will not be surprised at your low voltage issue.
Title: Re: AC voltage at pedestal
Post by: AC7880 on August 15, 2023, 08:33:58 pm

Will have to deal with this way I guess. How much fuel does the 10 kw power tech burn an hour?
I have read multiple times approx 1/2 gallon per hour
Title: Re: AC voltage at pedestal
Post by: Jeff & Sandy on August 16, 2023, 06:50:10 am
We have running the generator during the day as this is only way to get consistent power throughout the day. At night the power seems to level out and we can plug in. Just burning fuel during the day.  Am supposed to be here for the next 8 days....everything is booked up elsewhere
Will have to deal with this way I guess. How much fuel does the 10 kw power tech burn an hour?

Have you complained to the campground office? Maybe they can fix it.
Title: Re: AC voltage at pedestal
Post by: Stonyfork on August 16, 2023, 01:04:10 pm
Have you complained to the campground office? Maybe they can fix it.
I have to admit, the optimist in me wants to believe this but the realist part of me knows they probably won't — at least not in a timely fashion.  This is doubly true if the park in question is corporate owned.

Bill
Title: Re: AC voltage at pedestal
Post by: turbojack on August 16, 2023, 01:16:26 pm
Have you complained to the campground office? Maybe they can fix it.

I have to admit, the optimist in me wants to believe this but the realist part of me knows they probably won't — at least not in a timely fashion.  This is doubly true if the park in question is corporate owned.

Bill

Kind of like winning the lottery. If you don't buy a ticket you will never win.  I would at least ask since you are going to be there so long. They might even thank you for bringing it to their attention.  You will never know if you don't tell them.  It might even save you some $ in fuel that you are burning in the generator.

Now going to the store to buy a Texas Lotto ticket.

Title: Re: AC voltage at pedestal
Post by: Peter on August 16, 2023, 04:29:40 pm
Stony fork
That is exactly the case as I have talked to the office about it and they are aware of issues. I also stated that they really are false advertising until they get the situation fixed. AND they will not refund the money. Sad to say cause the rest of the site is spectacular that I will not come back here.
Barry
We too are using the the Hughes autoformer at the pedestal as well the built in one in the coach. It shuts the power down with anything lower than 104 volts. Annoying as hell but effective. Live and learn....