Harold

Who is here at the second session? We are in site 71. Harold Johnson

We will be in Hot Springs, AR for the Eclipse which is 4/8/2024 and the Cajun RV Fest sounds like fun, so we've preregistered. We'd be interesting in meeting some of the group. Harold Johnson

I'll just share my experience with doing exactly what you mention. "Before" when I performed a live power transfer, the transfer switch work great in transferring power from one source to the other. BUT, I had it go wrong one time and the result was a fried converter (not a Monaco) and damage to my A/C control board. With most generators you are transferring (from or to) both legs of 120v in-phase to two 120v out-of-phase sources (i.e. 220/240). The neutral has to cleanly switch (and if it doesn't then you might have 240v momentarily on your 120v lines) and both legs have to cleanly switch. Relays can arc, particularly under heavy load (which was the case in my situation). I also expect the quality of the transfer switch plays a role. If you remove all loads and perform the live switch-over, you'll have less risk of an Arc/surge, but they why not just shutdown the power and then power-up the new source. If your inverter is working, then the loss of power for a minute or two shouldn't matter anyway. From my experience, I will no longer transfer power live, I'll switch off the power and restart the power so that the transfer switch is unloaded when it switches. I'm sure that many will, correctly, tell you that they have never had a problem. For me it only took one bad transfer for me to reconsider a live power transfer as it isn't worth the potential damage.

An EMS will typically show the current on the neutral line which is why it usually disables the display when connected to 50amp. If your is showing amps and you really have 50 amps 220v service, then my guess is that it is showing the neutral amps, if you pull exactly 20amps from each leg, your neutral current should be zero, and if you shut off one of the 20amp legs, then your amps would jump to 20 on the neutral.

Actually '0' ohms is a short, as there is no resistance and infinite current can flow. Infinite resistance is an open circuit and no current will flow.

I'll just point out the presentation of the material is a bit misleading. Air is comprised of around 78% nitrogen (By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.) Nitrogen molecules in Air are the exact same size as Nitrogen molecules in a "pure" Nitrogen environment. Nitrogen doesn't "Improve Fuel Economy" or "Improve safety" as the presentation of the data perhaps might like you to associate with Nitrogen, rather properly inflated tires is the key. I have nothing against Nitrogen and using a high concentrate of Nitrogen to fill tires may work for you to help you properly maintain your tire pressure. The very last sentence is rather funny "Do you have nitrogen in your tires?" - absolutely, I have 78% nitrogen 🙂