Solutions to Auto Transformers Dangers using 230V Inverters in North America

Many folks are using various Auto Transformers on 230V International Inverters in order to make 120V 0 120V Split phase 120/240V. We show the possible pitfalls in doing so, and how to remedy them (in some cases) sometimes unbalanced phases are inevitable - you be the judge. Often, pennies saved by doing this can be far outweighed by possible risks. Where possible, use a unit designed for North America There were lots of comments and requests to highlight issues on the previous video. 00:00 Introduction 08:17 My Solution 2 yrs ago. 08:30 Why we need a neutral in a 240V US North American Breaker panel 10:28 Tripping the breaker to your Auto Transformer 11:34 Voltage fluctuations between phases with(out) the Auto Transformer 12:26 High Solar Voltage 200V +(PV ) Precautions for proper DC breakers 13:32 Cheap PV Breakers - beware! 16:13 Correct labeling for the North American Market (assuming no N & G bonding) 16:44 4.6kVA unbalanced load test on 5kva Auto Transformer - Heat Test 22:20 After 20 mins of load test 23:30 After 30 mins load test 23:48 8Kw Inverter running 5kva load for 30 mins on a 5kva Auto Transformer 237F at an ambient 33F 24:49 If there was thermal protection in the Transformer - conclusion