SYSTEM DETAIL:
30KvA 3 phase DC coupled system - 3 x 10Kva
system has a small temporary battery of 300ah
phase 3 went into overload a few days ago and had to be reset manually
the load on that phase at the time was 11 550 Watts while the other phases were in the region of 3000 to 4000 watts - with mains present.
The heaviest loads on the system are aircons - one of which is 3 phase. the client has recently balanced the loads in his distribution
1) I realise the battery is small for the system - but the log shows no drop in battery voltage.
2) Dc cabling is 90mm so i don't see a problem there
3) the load shows 11 500 watts (note that mains is present at the time of overload), whereas the inverter should be able to supply 30KW + with mains present
4) the log shows no unusual activity the i can see - no voltage drops -AC or DC. No excessive loads.
Any ideas as to where to look next?
