coulomb wrote: ↑
Wed, 13 Mar 2019, 21:41
Arrgh, by bad. MK, or Axpert King, it didn't click with me.
We have no firmware for the MK / King model, so no patched firmware is available for them as yet. So you've bought three of those now?
Yes I did, but maybe I can handle that without patch at first =)
Interesting product. I don't know if you can set up two PIPs to feed two phases to your Accelev
; I suppose it might work, but I have a suspicion it will throw an error if it can't see three machines.
Accelev uses only two phases. So it take that 400V in to the transformer to out 250V from sec. So with 2 x 16A you can use 1 x ~32A current and 6,6kW charger. My use only ~14A from that 250V, because my Leaf have 3,6kW charger. But that 250V helps a bit. My car fill littlebit faster than 3,3kW. Maybe not 250V X 16A = 4kW but appr. that promised ~3,6kW power. When Battery is quite low (like only 0,5kWh remain), then first few kilowatthours go with 4,4kW power.
So, when I got that 3-phase system to work, it must work like now. It stress two pips but smaller current than if I got all from one. Maybe there is too much losses. But now it is easier to follow, I guess. (I have also that one phase 16A charge control box too to compare.)
What I mean with that if I save my 4048MS units, I can use one or two (parallel) to my charge. Of course PIP's give error code if there is not that third machine.
But I can still use that Accelev with new configuration. And if it behave nicely, it will help that 3,3A less current (~760W) what I got when use new ones.
As I say, our feed is now 3 x 25A, that means 17,25kW, after PIP-5048MK x 3 I got 15kW max power. So that is 2,25kW less (750W / phase).
So if I take 3600W from one phase, I must look better than before what I use at same time. But If I can divide that to two phase, then there is more room to use another things like before =).
Ok, maybe there is too much losses, so I just need to look what happens...
I measure first time that Accelev better...
Just now we have 395,2Vac between phases and Accelev take 9,4A, so power is 3715W. Accelev feeds to car 247Vac and 14,6A. That takes 3606W. So 109W goes to transform. That is about 97% eff. Not bad I think.
So, that 3715W means about 16,15A if there is 230V phase, so that Accelev stress two 230V phases about 8,08A.