Hi Guy
We have a three phase setup installed (three MultiGrid 2) at one of our client’s residential house. We received a call from the client letting us know the system is down, on arrival there were no errors only a down system. We were busy fault finding and an error came up saying phase rotation error. There was a fault from the municipal department the previous day (complete power outage for almost the entire day) we reprogramed the system and confirmed with the municipality that they might have rotated the phases (hesitating to confirm 100%). Now the system is basically working perfectly again but the readings from the colour control does not add up, we are not sure what the fault is but we think it’s the energy meter that got damaged, do you have any advice what the problem could be?
The system is programed not to feed-in excess solarcharger power to the grid but as you can see there is a reading off -2199W (Grid L3). This reading bounces around between the phases and it does not make any sense as the 563W from the grid along with the PV Charger 1962W does not add to the load of 5353W.
Grid: 563W
L1: 2704W
L2: 57W
L3: -2199W
AC Loads: 5353W
L1: 5171W
L2: 181W
L3: 0W
Critical loads: 10W off at that stage (by-pass)
PV Charger: 1962W
