I have a a battery powered ups system.
I Also have solarpanels and an invertor.
The ups I able to controll the output of the invertor if a connect it to the ups line (by frequency modulation). So no problem there.
This all works fine.
But:
I am planning to install a home transfer switch that switches my home from grid to ups.
This switch is so fast that electronics keep running.
When I would switch from grid to ups, there is no problem I think. The invertor and the ups are in sync with the grid. So also in sinc with each other.
Then there is a switch.
The ups will then provide power to the solar-invertor, power that is in phase, so the invertor will just keep running.
But: after few hours running on the ups it is likely that there will be a (big) difference between the phase of the ups and the grid when it comes back.
When the grid come back the transfer switch switches the house and also the invertor back to the grid in a very short time. But the grid will be likely out of phase with the invertor.
Normally if you would switch by hand via a switch that has a 'zero' position. (Not connected) the invertor will lose power and then start to resync, no problem. But if i would use this home transfer switch it is suddenly connected to a phase-out-of-sync powersource without detecting a powerloss.
Question is: can an invertor handle this? Or will there be smoke and fire?
I Also have solarpanels and an invertor.
The ups I able to controll the output of the invertor if a connect it to the ups line (by frequency modulation). So no problem there.
This all works fine.
But:
I am planning to install a home transfer switch that switches my home from grid to ups.
This switch is so fast that electronics keep running.
When I would switch from grid to ups, there is no problem I think. The invertor and the ups are in sync with the grid. So also in sinc with each other.
Then there is a switch.
The ups will then provide power to the solar-invertor, power that is in phase, so the invertor will just keep running.
But: after few hours running on the ups it is likely that there will be a (big) difference between the phase of the ups and the grid when it comes back.
When the grid come back the transfer switch switches the house and also the invertor back to the grid in a very short time. But the grid will be likely out of phase with the invertor.
Normally if you would switch by hand via a switch that has a 'zero' position. (Not connected) the invertor will lose power and then start to resync, no problem. But if i would use this home transfer switch it is suddenly connected to a phase-out-of-sync powersource without detecting a powerloss.
Question is: can an invertor handle this? Or will there be smoke and fire?