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bulraydin asked

Frequent Phase rotation alarms

We have several sites installed with Multiplus II 48/5000 , with three phase and ESS programmed with Batterylife


lately we get very frequently phase rotation alarms and the alarm is usually cleared after half an hour or 1 hour.

When we check the grid, the rotation seems correct.

What could be the reason that Multiplus observes wrong phase rotation ? We have starting having this problem on two sites now. Hence we think there is something wrong with the newest inverter batch. Please help me what else to check. It is very disturbing that suddenly the grid is not accepted.

3 phase
2 |3000

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