Inverter choice?

DDuffeeInc

We have a building that is 120/208 3 Phase. It has one Main Distribution Panel that feeds 3 other sub panels.

We have one panel which feeds our offices and is a single phase panel with nothing but computers and electronic ballast light fixtures. The harmonics are fairly strong on this panel. This panel runs about 4kw most of the time during the day. This panel is 208 single phase as we have a wye transformer feeding the building.

Our other panels are 120/208 3 Phase fed from a wye transformer. The other panels do have a few harmonics but not like the office panel.

My question is this? Should we install a 3 phase inverter at the main panel and at one of the 3 phase panels. I feel if we install a single phase 240 volt inverter it will be correct for the wye setup.

We are looking at 2 installs on the building and looking to just help the loads somewhat. The building uses about 5,500 kwh a month so net metering is probably not going to happen.

mike95490

Re: Inverter choice?

I would think that a 3 phase inverter would be installed at the main panel, the 3 sub panels are likely single phase. Only your panel lable knows.