Surge Protector

Hi Larry,

I find the autoformer useful because, even at 97 volts shore power supply I can run my roof air conditioner safely. The unit raises up the voltage. The unit I have does three layers of boost. One at 110 (10%), 2nd at 100 (20%), and third at 90 (30%) volts. It also bucks at 132.

I believe with 50 pedestals there are 9 on one breaker. If all the roof air and water heaters are on there will be voltage drop. Lots of it.

LarryJM wrote:

pianotuna wrote:
This is exactly why I chose an autoformer. It fixes the low voltage.

seaeagle2 wrote:
My biggest complaint with my PI HW30 is we rarely use our AC and if we want to use it, everyone else in the campground is already using theirs so we usually get a low voltage lockout :E They have excellent customer service, I called on either Memorial Day or Labor Day with an issue and they returned my call, and walked me through resolving the issue.

Not sure why you find an autoformer so useful, but it might be from the poor power at the CGs up north you have. I think for the best cost effective overall protection the PI type EMS is hard to beat. Autoformers IMO have a very limited use (i.e. low voltage) and are much more expensive. For me if I found I needed an autoformer more than once in a "blue moon" I would be looking for a different CG to stay at. Since I've had my PI unit, in the last 11 years I have experienced one low and one high voltage alarm along with several open ground faults. In the event of a low voltage situation the PI units can be locked out manually and you at least have the ability to not use low voltage sensitive equipment (mainly the A/C) and still have lights, etc. while beating up on the CG management to fix their issues or refund you $$$ for not providing the services you have paid for.

Larry