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 > Autoformer Voltage Booster Question

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vtchris

vermont

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Posted: 05/20/20 01:01pm Link  |  Quote  |  Print  |  Notify Moderator

I have my RV plugged into this and all is wellDefender Surge Protector

time2roll

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Posted: 05/20/20 03:33pm Link  |  Quote  |  Print  |  Notify Moderator

vtchris wrote:

So what's the deal with reverse polarity?


Need voltmeter to verify.

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pianotuna

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Posted: 05/20/20 03:51pm Link  |  Quote  |  Print  |  Notify Moderator

If the trailer is metal you can have a "hot" skin situation. This is not just undesirable, it is dangerous. Hot skin may work with other devices in your RV, too (for example a metal toaster).

Did you check polarity before plugging in? And did you check polarity at the "2nd" pole as well. It is entirely possible for the entire campground loop to be reversed.

vtchris wrote:

So what's the deal with reverse polarity?



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vtchris

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Posted: 05/20/20 04:05pm Link  |  Quote  |  Print  |  Notify Moderator

Polarity was checked with The Defender Surge Protector previous to plugging in Frank's Autoformer.

time2roll

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Posted: 05/20/20 04:23pm Link  |  Quote  |  Print  |  Notify Moderator

If the booster does not pass through power there may not be much you can do.
Inside is just a transformer, circuit board and a relay. You could open it up and take a look for something burned up. There are a few repair guys that pop in here that might be interested. Shipping might be a bit much for an unknown issue.

vtchris

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Posted: 05/20/20 04:31pm Link  |  Quote  |  Print  |  Notify Moderator

It seems to me that it fits inside one of those flat rate boxes, but yeah, dang thing is heavy. A neighbor of mine says if nothing else there is value in the copper inside.

DrewE

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Posted: 05/20/20 07:04pm Link  |  Quote  |  Print  |  Notify Moderator

If the input cord or plug on the autotrasformer has been replaced, maybe it was miswired there with the hot and neutral reversed.





beemerphile1

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Posted: 05/20/20 07:30pm Link  |  Quote  |  Print  |  Notify Moderator

DrewE wrote:

If the input cord or plug on the autotrasformer has been replaced, maybe it was miswired there with the hot and neutral reversed.


My thought also.


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MEXICOWANDERER

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Posted: 05/20/20 07:59pm Link  |  Quote  |  Print  |  Notify Moderator

For the record

If L1 Is reversed with L0 at the entrance to your rig. It then does not pass through any current limiting device. So 30 amps can pass to a receptacle which means trouble using 14 gauge wire

Yes a voltage protection device would work for incoming but not for reversal after the VCD

wa8yxm

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Posted: 05/21/20 05:25am Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

Seems odd. How did you verify polarity? 30/15 adapter with a 3-light tester?
I have a Frank's and I was not even aware that polarity check was an option.
And yes Frank's is long out of business.


Egg Zactly as they say.

That is the easy way to do it. If you want the hard way (A volt meter) that too can be done

Reverse polarity: What it means
On a 2-wire AC circuit (Say a fan with a plastic body and a 2 wire cord) absolutely nothing

But on a 3 wire "hot/Neutral/Ground". it means hot and neutral have been swapped.

I know of no way that the device can give a false indication UNLESS the plug or cord has been replaced.

But it is easy to wire the outlet that way.


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