We have an "Autoformer" that will boost low voltage down to 95VAC. This means our EMS won't trip. We have had an Autoformer since we had some problems in parks with poor electrical systems. It makes a huge difference when everyone is running their AC. My inside voltage is sitting at between 104.5 to 119.9 VAC and everyone else's voltage is from 95 - 109 VAC. Surge Guard has a 50 AMP Autoformer for about $556.99 and Hughes has one for about $100 less. There is no substitute for an Autoformer. My prior post was overly simplified in that I failed to explain that most commercial Autoformer units only boost by 10%. This means that if the input voltage is 95 VAC with an Autoformer the output voltage from the autoformer would be 104.5%, if the input voltage is 109 the output voltage would be 119.9. This has saved us multiple times.
