Quote:
quote:Originally posted by rich2118
I, too, have a Progressive and an Autoformer, but I have the Progressive plugged between the post and the Autoformer. Is this wrong, and why?
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If the voltage is low at the post the EMS will turn off the power before the autoformer could increase the voltage. If the autofromer is plugged in first it would increase the voltage to a safe level but if it can't the EMS would turn off the power to protect the RV. The autofromer will protect from low voltage but it will allow high voltage and the EMS will protect for high voltage as well as the low voltage. The autfromer also has spike and surge protection so it will help to protect the EMS. I hope I have explained my understanding of why I plug the autoformer in first.