Hughes Autoformers PWD30-EPO, 30 Amp

wa8yxm wrote:

fj12ryder wrote:
I have the 50 amp model, and am very satisfied with it.

Had the 50 amp module.. My rig was wired as follows

Shore power===Hughes==Surge Guard==Auto Transfer Switch.

One park I often parked at (possibly 2) was very nasty low voltage wise.. Never had a low voltage issue (Saw some truly scary voltages at the post though) Hughes fixed 'em.

Do be aware however that volt-amps are volt-amps

If power coming in is 120 volt and you are drawing 25 amps that's 3000 volt amps.

But if the power goes down to 100 volts that means 30 amps needed to hit 3000 VA (Most people think volts * amps = Watts. true in a DC circuit but in AC it's Volts*Amps = Volt Amps VA times Power Factor = Watts.. COnfused me for about 40 years before I figured it out so don't feel bad.. and I have documents saying I know this stuff)

The device the OP mentioned is not a "Autoformer", it is a surge arrestor device which would take the place of the Surge Guard in your "chain" of devices..

So basically the device the OP mentioned does not correct low or high voltage as in a autotransformer. It only clips surges and shuts off power which high voltage spikes.

Still a potentially useful device but once again, does nothing to correct low voltage without shutting off power..