Technical Support

My installer measured 110V between live and earth and neutral and earth when running 5kW sunsynk with main circuit breaker feeding grid power into inverter tripped. He says we should install an earth-neutral bond relay at the output of the inverter. My question is, since only a portion of the house is fed via the inverter and my earth is common to both inverter connected and non-inverter connected loads, would putting neutral voltage (220V) onto the common earth not cause any problems for the other loads or RCD/RCCB's? My question is specifically for the scenario where grid power is on, but I choose to trip the breaker feeding the input of the inverter. I have asked a few people this same question (including my installer) and all but 1 is happy that all is correct/OK.