electro7
Senior Member
- Location
- Northern CA, US
- Occupation
- Electrician, Solar and Electrical Contractor
Hi,
I am designing a system and wanted to confirm on some electrical calculations for feeder conductors.
inverter max output current 41.6A and 33.3A.
2 inverters of the 41.6A and 1 inverter of the 33.3A.
41.6 X 1.25 = 52A (OCPD 60A)
33.3 X 1.25 = 41.63 (OCPD 50A)
Thats easy but I was wondering about the feeders feeding this solar PV panelboard these three inverters are connected to.
Can it be:
(41.6 X 2) + 33.3 = 116.5A X 1.25 = 145.63A
USE 150A OCPD
??
Even though the individual inverter output circuit breakers add to 170A can the panelboard feeder still be 150A?
I am designing a system and wanted to confirm on some electrical calculations for feeder conductors.
inverter max output current 41.6A and 33.3A.
2 inverters of the 41.6A and 1 inverter of the 33.3A.
41.6 X 1.25 = 52A (OCPD 60A)
33.3 X 1.25 = 41.63 (OCPD 50A)
Thats easy but I was wondering about the feeders feeding this solar PV panelboard these three inverters are connected to.
Can it be:
(41.6 X 2) + 33.3 = 116.5A X 1.25 = 145.63A
USE 150A OCPD
??
Even though the individual inverter output circuit breakers add to 170A can the panelboard feeder still be 150A?
