question

 kWh is a measure of energy, i.e., kW use for h, hours. At times it's not clear what you mean. When discussing power, it's W or kW, no "h". Sometimes, you just use "K", so there's that too.

I always meant kWh as I started using it at the beginning of the thread so that the reader knows what I'm referring to, eventually, I used the shorter version of kW or K for short as I've seen done so many times in many discussions

You are reporting only about 1.5-2X surge on your motors. Most motors have closer to 4-5X surge. Actually, readings can lie. If you are measuring with a MAX function on an ammeter, it's not adequate. You need to use an ammeter specifically with an INRUSH function.

I used a clamp ammeter for this test as that's all I have at present, however, as I said earlier, the problem now is no longer on startup but about half a minute or more after which is why I'm puzzled.

If you're really observing 2X surge vs. run on an INRUSH meter, I question the results unless you have a soft start installed.

There is no soft start now, that was used when I only had one inverter but it didn't do much anyway.

VRM only logs at intervals of 1m or longer. If you enable display min/max, it may capture the minimum. You need to observe voltage on a BMV/Smartshunt on VictronConnect Trends tab where it updates about every second for a better idea of what's happening on a short term basis.

Here are the Lynx readings at the times of the events, I still cannot observe any substantial variation in the voltage there and it shows 14.6A and 4.2A being drawn.

Instead, I can see a visible drop at time 07:47 with a 64.10A discharge but no alarm was raised even though I was using both resistive and inductive loads while preparing breakfast

You are reporting only about 1.5-2X surge on your motors. Most motors have closer to 4-5X surge.

Actually, I didn't, I reported 25A at startup and 17A when running which is consistent with your statement being 5.75 kWh starting and 3.91 kWh running. Having said that the motor is rated 2.1kWh but it seems to be using much more.

Are your inverters properly wired in parallel with equal length/gauge conductors? If one is forced to bear more of the load due to wiring, you can overload it.

All the AC cables are perfectly balanced but I must say that the DC side from the Distributor to the Inverters is marginally different in fact was supposed to rectify that if any noticeable problem arose during heavy loads but, as we can see from the above image no alarm is activated even with a 60 plus Amps.

I did some tests on the DC lines some time ago and the amperage through both lines was reasonably even.

I might want to repeat the test using the compressor instead and see if it shows any difference in which case I'll replace the two shorter DC lines as I already have the new cable here.

The only problem is always been caused by the larger compressor motor from day one.

Are your batteries wired properly such that both inverters share loads with the battery elements equally?

Yes, they both feed into the Power-In before going to the Lynx and the Distributor, the cables are balanced in length and the problem seems to be the same even running on one battery only.

Thank you for your comments, and sorry for the misuse of kW and kWh

You did report a 1.5-2X surge vs. run:

I reported the Amperage during startup as being 25A which times 230V makes it 5250W not 1.5-2k, those fingers are the ratings of the two different motors as I said in the beginning.

Note that same brand model HP-6205. It specifically states an inrush function. So, this is a perfect example of readings that lie. I would trust the run currents, but your surge currents are MUCH higher.

Again thank you for the tip, I have now ordered the HP-6205 so that I can better monitor inrush currents.

However, I'm not sure that the inrush current would persist for 3o/40 seconds like in my case or . . . would it?

Thanks, I'll read the threads however in my case I cannot see this being a potential reason because, as I said earlier, I have been drawing twice as much for months without it tripping, this is only happening with the compressor's motor which only uses 17A after the initial 25A for start-up and it has no problem with that inrush current, only after a while. I suspect a problem with the motor but again it does not cause problems when running from the grid.