davesmith87
New Member
- Joined
- Sep 19, 2021
- Messages
- 24
Hello all,
I've got (2) MPP LV6548 inviters. These inverters can do 250v for solar input. Each inverter can do 8000 watts.
I currently have 24 panels (435 watts) in 2s3p setup. 4 combiner boxes. This put's me using about 10,000 watts (out of 16,000) in peak sun. I want to find a way to utilize the rest of the 6000 watts.
However, if I go 3s3p, this will put be slightly over the inverters rated max. My panels are 5 years old, and about 200 ft from my house (where inverters are). In the 3 years I've had them, I've only recorded 165v once (in 2s3p) configuration (this was in January when it was -10 out and sunny). Adding a third would put me just at about 250v or slightly over.
Could I simply add a breaker at 250v for each string right before the inverter? Any cons to this other than the breaker failing and not tripping?
Ideally, I would just get a higher capacity charge controller, but don't want to replace my inverters.
Thanks in advance,
Dave
I've got (2) MPP LV6548 inviters. These inverters can do 250v for solar input. Each inverter can do 8000 watts.
I currently have 24 panels (435 watts) in 2s3p setup. 4 combiner boxes. This put's me using about 10,000 watts (out of 16,000) in peak sun. I want to find a way to utilize the rest of the 6000 watts.
However, if I go 3s3p, this will put be slightly over the inverters rated max. My panels are 5 years old, and about 200 ft from my house (where inverters are). In the 3 years I've had them, I've only recorded 165v once (in 2s3p) configuration (this was in January when it was -10 out and sunny). Adding a third would put me just at about 250v or slightly over.
Could I simply add a breaker at 250v for each string right before the inverter? Any cons to this other than the breaker failing and not tripping?
Ideally, I would just get a higher capacity charge controller, but don't want to replace my inverters.
Thanks in advance,
Dave