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 > A very good reason Not to scrimp on surge protectors.

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Acdii

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Posted: 07/07/20 01:35pm Link  |  Quote  |  Print  |  Notify Moderator

Nice, about the same cost as progressive without the remote

Lwiddis

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Posted: 07/07/20 01:35pm Link  |  Quote  |  Print  |  Notify Moderator

"As an owner of a 30AMP RV, do I need one of these?"

Yes! You can FRY a 30AMP rig just like a 50 with voltage under or over. Checking when plugging in is a great habit but voltage may be fine then but when everyone starts their A/C...bingo.


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Posted: 07/07/20 02:27pm Link  |  Quote  |  Print  |  Notify Moderator

In the past 5 years my PI (50) has tripped three times. Twice for low voltage (both times in Canada) and once for no ground when my neighbor drove over his ped while leaving the CG.


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Posted: 07/07/20 02:29pm Link  |  Quote  |  Print  |  Notify Moderator

Have EMS in my 5ver in Florida (50 amp) in my 5ver at home (30 amp) and my truck camper (30 amp). Saved me several times. Ron


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Veebyes

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Posted: 07/07/20 06:05pm Link  |  Quote  |  Print  |  Notify Moderator

We have a PI 50amp. First thing that happens after the brakes are set is the DW gets the box out & plugs it into the post to check the voltage. If that passes we continue with the setup. Sites have been refused more than a few times due to power issues found by the box.


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pianotuna

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Posted: 07/07/20 06:54pm Link  |  Quote  |  Print  |  Notify Moderator

work2much wrote:

Went with the Hughes watchdog hardwired on our new 5th wheel. I liked the bluetooth monitor and alerts it sends if there is an issue. I thought about their auto former but we can run a long time without shore power or use the hybrid inverter to boost voltage in load sharing mode.


Hi work2much,

Hybrid inverter chargers do not do voltage support unless you "force" them to do so. This may result in damage to the unit. DAMHIK


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pianotuna

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Posted: 07/07/20 07:09pm Link  |  Quote  |  Print  |  Notify Moderator

Thermoguy wrote:

Seems like I am not quite up on these things. I have read quite a bit of these posts about electrical issues and such. As an owner of a 30AMP RV, do I need one of these? Should I be as concerned about surge and low power? I do have a couple different meters and could measure the outlet before plugging in. I also do not have any delicate electronics, just typical fridge, A/C, TV, lights. I haven't seen a problem yet, knock on wood...

Thanks


There is less risk on 30 amp, but it is still there.

There are computer boards in most if not all fridges. The same is true for most air conditioners with a thermostat on the wall.

There is far more damage caused by low voltage than by surge. Low voltage is endemic in campgrounds in the summer time. If there are 36 or more spots, the current electrical code allows for just 41% of the total demand be provided. No wonder, when a park is full and it is 30 C (86 f), the voltage is low.

There is no affordable surge device that protects an RV against a lightening strike on the feed to the campground.

I never plug in the RV until I have tested for polarity and voltage under load.

I do have surge protection--but it was hand made for me and incorporates 3 different methods.

work2much

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Posted: 07/08/20 12:13pm Link  |  Quote  |  Print  |  Notify Moderator

pianotuna wrote:

work2much wrote:

Went with the Hughes watchdog hardwired on our new 5th wheel. I liked the bluetooth monitor and alerts it sends if there is an issue. I thought about their auto former but we can run a long time without shore power or use the hybrid inverter to boost voltage in load sharing mode.


Hi work2much,

Hybrid inverter chargers do not do voltage support unless you "force" them to do so. This may result in damage to the unit. DAMHIK


According to Magnum low voltage from shore will be raised during load support. Not as an advertised feature by as a byproduct of the inverter adding higher voltage and the two combining.


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pianotuna

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Posted: 07/08/20 06:05pm Link  |  Quote  |  Print  |  Notify Moderator

work2much wrote:

pianotuna wrote:

work2much wrote:

Went with the Hughes watchdog hardwired on our new 5th wheel. I liked the bluetooth monitor and alerts it sends if there is an issue. I thought about their auto former but we can run a long time without shore power or use the hybrid inverter to boost voltage in load sharing mode.


Hi work2much,

Hybrid inverter chargers do not do voltage support unless you "force" them to do so. This may result in damage to the unit. DAMHIK


According to Magnum low voltage from shore will be raised during load support. Not as an advertised feature by as a byproduct of the inverter adding higher voltage and the two combining.


Hi work2much,

Load support is NOT voltage support. I have a Magnum 3000 hybrid. Trust me. It does NOT do voltage support unless you deliberately lower the input amps, which forces it to do so. When that is done the majority of the load may be coming from the battery bank.

Further, I've spoken to the tech support desk who told me the Magnum product load support is not designed nor intended to do voltage support.

It is true that when connected to a 15 amp source you can prevent the breaker tripping by setting the input amps to 15. That allows you to run a load that totals 24 amps for a time. If, during that time, the battery bank becomes exhausted, the shore power 15 amp breaker will trip. DAMHIK

In my experiments with load support, which were done on a 30 amp pedestal, it was a heck of a hot summer day. I had to reduce the input amps to just 11 amps on the ARC remote before voltage support happens and I stopped when voltage was 107. I had the fridge on propane, and the water heater off. The air conditioner was drawing 1900 watts.

My testing, using my autoformer with a 15 amp circuit which under "no load" was at 100 volts I had 113 volts inside the RV.

shore power 100-->autoformer-->RV 113.

The sola basic autoformer boosts at 110, 100, and 90 volts as it comes from the factory. It is possible to tweak those numbers and I have done so putting the first boost at 113 volts.

I should also mention that my first Magnum with no shore power displayed 120 volts no load. That does drop as the load increases.

The replacement unit does a no load voltage of 122.

The above data was gathered in 'real life' using a watt meter and a kill-a-watt meter.

Dtank

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Posted: 07/11/20 03:51pm Link  |  Quote  |  Print  |  Notify Moderator

Thermoguy wrote:

Seems like I am not quite up on these things. I have read quite a bit of these posts about electrical issues and such. As an owner of a 30AMP RV, do I need one of these? Should I be as concerned about surge and low power? I do have a couple different meters and could measure the outlet before plugging in. I also do not have any delicate electronics, just typical fridge, A/C, TV, lights. I haven't seen a problem yet, knock on wood...

Thanks


Here's another - *VERY*- good reason not to scrimp on surge protectors !! (Preferably a PI)

"......measuring the voltage at the 30 amp pedestal".

Note the "typical" items (in your post) that *were* damaged...[emoticon]
(LOTS of "reasons" by LOTS of RV owners!!)

THE ELECTRICIAN SAID... "OOPS"

[emoticon]

.

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