I have a client installation which is a pretty standard 48/5000 Multiplus 2 with ESS.
There is a changeover switch from a genset which is manually operated in the event of a prolonged national grid failure.
For all intents and purposes the Genset is installed as if it is the national grid.
Except, - The Multi does not recognise the Gender and sees the Grid as failed. The genset output is 23x volts and 53.15 Hz at no load
Out National grid code NRS097 stipulates the Multi to disconnect at low Hz 47 and high Hz 52
I suspect that due to the Genset output being 53.15Hz that the Multi recognises this as out of the acceptable parameters.
How can I fix this?
Can I create an identical Grid code but with high Hz cut off being say 54Hz?