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Posted: 2024-04-1103:49 AM
XW Pro 6848 Voltage incorrect while on Generator power
Hello, I have a Schneider XW Pro 6848 Inverter in our Off-Grid home. It's been a cloudy week so I fired up the generator and for inverter could not qualify the power coming it. It tried but would shut off after three tries. The inverter also made an almost grinding sound. This only happened when the generator was on and has never happened before.
Looking at the power coming in from the generator it shows around 115V on one leg and 125V on the other. This fluctuated between a 10-15V difference but the total was still always 240V. I talked with Schneider and was told that it is a generator issue and that the inverter wouldn't accept power with the volts off like that.
So I turned my attention to the generator and their tech support suggested changing the bushings in the motor. I have some on order but went ahead and checked out the voltage from the generator and found that it was 120V on both legs and 60Hz. I tested again at the breaker before and after the breaker at the inverter and checked the power going into the inverter. All were 120V.
This tells me that for once the power enters the inverter there is an issue. Does anyone know if there is a way to check or adjust the inverter so the power is at 120V per leg? Again, this isn't an issue for the power coming from the solar panels or the power going out to the house. It is just how the inverter is reading the power from the generator.