Power Protection Device, Do you?

pnichols wrote:
Kwi too,

I shouldn't have recommended both units in my earlier post. My original thought was to have the PI unit first so as to protect an expensive Hughes unit from surges like lightening strikes ... the Hughes unit design probably is taking care of that internally anyway - not sure.

You're right on a PI unit not being before an autoformer because then the autoformer would be subject to power shutoffs from the PI - thus negating the autoformer's feature of automatically providing continuous power to an RV regardless of outside voltage levels.

A person should use either the PI to save money and have at least some raw protection - or spring for the $$$ and really do it right with an autoformer. However, as I understand it some campgrounds don't like - or allow if they know about it - autoformers because they take more current from campground circuits in order to keep the voltage high for the individual autoformer owner. Maintaining the total energy for the autoformer owner's RV has to come from somewhere and total energy comes from a combination of both voltage and current.

I have both. I do not think the Hughes autoformer is enough protection.

There are talks about some CG not allowing an autoformer but I have never been to one, yet.