Losing power while plugged into Shore ? Follow up more info

[supercub]

50 amp, plugged into shore power. It's 98 degrees outside, running both AC's, TV, Direct Box and frig.
In the last couple of hours, I've lost the power 5 times, after 30 seconds to a minute, it comes back on. I called the office and they're not losing power. What do you think? Is it the shore power end, or something in my motor home? Thanks

I'm on the end of a row, the camper next to me, has lost power also. His breakers are popping.
Maintenance checked my pedestal and one was 113 and the other around 119.
On my Progressive Industries EMS-LCHW 50 which has surge protection, I'm getting the following readings.
L-1 108V 8A Code EO low voltage
L-2 116V 21A Code is good.

[pianotuna]

Hi,

How high is the voltage coming in?

et2 wrote:
My question, is there a device to reduce a campground voltage coming in? I'm at the other side of this problem.

[CA_Traveler]

As I recall the Sola Basic automatically adjusts the voltage and is for 30A power not 50A.

But almost all of my low voltage has occurred on 30A.

[MrWizard]

a Buck / Boost transformer
can be wired to reduce or increase line voltage

a Sola basic is a buck boost transformer

[supercub]

Got up this morning and took a look at the ECM and both lines were at 116 volts. Just to much power being pulled by everyone yesterday. I'm at a different park tonight, and getting around 116 on both lines here. Thanks for help.
Brian

[CA_Traveler]

et2 wrote:
My question, is there a device to reduce a campground voltage coming in? I'm at the other side of this problem.

The Sola Basic is available in Mexico and controls both high and low voltage. Poster pianotuna is in the process of getting one. Search on Sola Basic.

[CharlesinGA]

et2 wrote:
My question, is there a device to reduce a campground voltage coming in? I'm at the other side of this problem.

Yes its called a telephone......... call to the power company. The campground cannot supply voltage higher than the POCO so if it is high, the power company needs to change taps on the transformer or change it out.

Only exception is if the campground has 480 3phase and is using their own transformer to drop it and break it out to single phase. Those transformers have taps in them that are used to set the output voltage. They have to physically shut down power and move wires to different terminals.

Charles

[msturtz]

I have not seen one.

[et2]

My question, is there a device to reduce a campground voltage coming in? I'm at the other side of this problem.

[enblethen]

Did you check your water heater to have it off when running both AC units?

[CA_Traveler]

Your PI unit is working as designed, low voltage on either leg caused both to disconnect.

So far I've only been to one CG with low voltage on a 50A plug. It was very hot with lots of A/Cs running. Also somewhat older CG so that may be a factor. 30A low voltage is much more common.

BTW The only way maintenance can properly check a pedestal is with a monitoring device over time. No doubt they know about the problem and you were stone walled.

[msturtz]

We have an "Autoformer" that will boost low voltage down to 95VAC. This means our EMS won't trip. We have had an Autoformer since we had some problems in parks with poor electrical systems. It makes a huge difference when everyone is running their AC. My inside voltage is sitting at between 104.5 to 119.9 VAC and everyone else's voltage is from 95 - 109 VAC. Surge Guard has a 50 AMP Autoformer for about $556.99 and Hughes has one for about $100 less. There is no substitute for an Autoformer. My prior post was overly simplified in that I failed to explain that most commercial Autoformer units only boost by 10%. This means that if the input voltage is 95 VAC with an Autoformer the output voltage from the autoformer would be 104.5%, if the input voltage is 109 the output voltage would be 119.9. This has saved us multiple times.

[Ivylog]

If you can move to a site closer to the transformer supplying the power to your section you will have higher voltage. My EMS shuts me down at 107V.

[rgatijnet1]

Yep, there is always a problem with the RV parks where the owner is not willing to spend the money to keep up with changing conditions. Unfortunately I have never heard a park owner tell me when I checked in that he is giving me a large discount because the 50 amp service that I am paying for may or may not work to supply the power that you expect.

[rockhillmanor]

doxiemom11 wrote:
It can be the campground electrical. There was a campground I worked at that had 3 sections wired seperately. The oldest section could not support all the rv's running everything, especially all the AC's when it got hot. One weekend while working the power would go out (main box just about burning up) wait a bit, turn it on and everyone's AC's kicked on at about the same time - that would trip it again. Could not get them to understand that everything coming on at once was also contributing to the problem. We are talking an area with about 50 rv's. Campground and county admin knew about the problem, but planned on redoing that whole section within 2 years so were doing nothing about the electric. Only happened when they were full like on a holiday weekend. What a pain as the campers took their anger and frustration out on us workers. We couldn't do anything about it. Stuck between the powers that be and the campers.

X10
And the elephant in the room, unfortunately the overloads at smaller CG's are caused by the coaches equipped with 2 ac units.

Older CG electrical power were built figuring one RV per site with one ac. Fast forward to today with so many coaches with 2 ac units they are over loaded at the get go. Add hot weather and the CG grid doesn't have a chance.

At a sporting event on a very hot day at a CG they kept loosing power. They made an announcement that the coaches with 2 ac's please only use one. Since we were all friends with the same sporting interest everyone with 2 ac's complied and only used one ac......the power never went down again. Been there seen it.