Victron charge settings
- Thread starter Haze
- Start date
sunshine_eggo
Happy Breffast!
It's off because there's nothing for it to do - no PV.
You do not set the MPPT parameters in the Cerbo. Use VictronConnect either through BT locall or through VRM Cerbo gateway (local or remote).
You do not set the MPPT parameters in the Cerbo. Use VictronConnect either through BT locall or through VRM Cerbo gateway (local or remote).
sunshine_eggo
Happy Breffast!
Haze
New Member
- Joined
- Mar 6, 2021
- Messages
- 121
Ok I have a breaker question.
I have 15amp 300VDC midnight breaker for my solar string. I can’t seem to figure out if I add up VOC to get the volts I need to stay under or do I add up VMPP and stay under that ? My VMPP comes out to 276.8 VDC and my VOC comes out to 328 VDC.
So if I go off VOC I’m thinking I would need a higher voltage breaker ?
I have 15amp 300VDC midnight breaker for my solar string. I can’t seem to figure out if I add up VOC to get the volts I need to stay under or do I add up VMPP and stay under that ? My VMPP comes out to 276.8 VDC and my VOC comes out to 328 VDC.
So if I go off VOC I’m thinking I would need a higher voltage breaker ?
sunshine_eggo
Happy Breffast!
Voc.
Brucey
Solar Wizard
If it were me I'd try what you have, there's some leeway on a breaker it's not going to trip at 301V. If you find it nuisance trips on cold mornings then next step up is 600V fuses or breakers.
The safest path is going direct to a 600V protection solution.
sunshine_eggo
Happy Breffast!
Since this might be confusing to a newcomer, to clarify, breakers don't trip on voltage at all. Breakers trip on current. It's about whether it will trip when it's amps are exceeded while above 300V. In very simplistic terms, higher DC voltage WANTS to stay connected. A high voltage breaker must be strong enough to pull the connection apart.
