
Originally Posted by
lyapunov00
Thank you, so if I understand your reply properly, what needs to be done is to also corner ground the transformer close to the inverter at the HV side (that transformer comes from us, so we get to pick its configuration). It would only be an issue if there would be no transformer in the middle
Thank you again
No. The utility side of the transformer doesnt get grounded again. The transformer doesnt care that it is fed with one phase that is grounded. The inverter side would be grounded because it is a separately derived system and the grounding configuration would have to match what the inverters want, which for 99% of installs these days would be grounded Wye.
Ethan Brush - East West Electric. NY, WA. MA
"You can't generalize"
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