Guru
Joined: 13/10/2014
Location: AustraliaPosts: 1845
| Posted: 10:50pm 28 May 2023 |
That's always been a ball park, but it's high for this inverter, around 37uH is the best value for those loads that cause this inverter to complain. The DSO backs that up.
When I have more time I plan to take one toriod ring off and check the value, then swap the colored rings around in combinations until I get the value I need for the sweet spot.
Fuse Test:
Testing the fuse like that is unlikely to trip the BMS units, the combined Battery bank can supply almost 900A at 48v for a brief time, around 400A continually, and 500A for a few minutes before tripping.
There are three LiFePO4 battery banks, each fused with a similar 100A fuse, so a flash blow of a separate Fuse in the inverter is not going to bother those either.
A BMS will likely open before a Battery fuse blows in any case, the Fuses are there for worst case scenarios.
Each battery bank has it's own Isolating switch, Solar Charger and Solar array.
Three of everything and an inverter than can have the driver boards swapped in 10 minutes, redundancy!
The system can run "essential power" on only one 8kW bank if needed.
Finally, any Inverter fault or external fault that cuts DC input to the Control circuits in the inverter, before or after the Inverters input Contactor, will cause the 900V-500A rated Contactor to instantly open.
.
Edited 2023-05-29 10:10 by KeepIS