Hughes autoformers
Anyone use a autoformer power regulator? They seam to have a lot of protective features As well as stabilizing the voltage into the coach.
Forum Discussion
cavie wrote:pianotuna wrote:
Hi,
I use an autoformer from Mexico (Sola Basic) that has three "layers" of boost (110, 100, 90) and one of buck (135). I use external surge only, not EMS. I do use an inverter charger that allows me to limit demand on the shore power side of the equation.
The Sola Basic is rated at 4000 VA so is just about a perfect fit for a 30 amp Rv service. They do make 50 amp units, too.
I use it in the winter time, too to let me get best performance from electric heating.
I have "tweeked" the boost to start at 113 volts. I have used it (previous to tweak) on a 100 volt shore power (that is unloaded voltage).
They are a commonly available item in Mexico, and considerably cheaper than the Hughes (which is a good unit).
Because the Autoformer boost voltage and protects from Large surges, that's all. It does not protect like the EMS does. Using both is nessessary. There is a very big differance between Surge protector and an EMS.
Yes there is a big difference, but my system has load support via the inverter/charger and better surge protection than the PD, SG or Hughes units.
EMS that does load shedding automatically is nice--but I do not need that. I'm glad you enjoy your EMS. Would you care to share what it does for you?
I have no use for the units that simply disconnect power at a voltage far too low for my comfort zone.
