bsreekanth
New User
- Location
- Columbus, OH
- Occupation
- Farmer
Hello
I am helping to design a solar electric system, which combines two sets of 3 inverters configured in three phase.
The architecture is explained in XW Pro Multi-unit Design Guide; specifically page 45 Three-phase with External Contactor.
Schneider engineer explain how to combine the two sets by parallelling them in two, 3 pole 60A breaker in this video at timestamp 32:58.
I want to confirm my assumption about maximum current is correct.
Total power 40.8kVA => each inverter 40.8/6 = 6800 W. This matches the power of one inverter.
Each leg of 3 phase is combined at the 60A breaker, so the max current will never exceed 120A.
Is this correct that each leg of 3 phase service wire need to support minimum 120A.
Is this the correct cable to use to connect the service to main panel
www.needco.com
I see 1/0 Aluminum support this but hard to find a 5 wire cable, but 2/0 is readily available. Can you please point me to the commonly used cable for this.
Thanks
bsr
I am helping to design a solar electric system, which combines two sets of 3 inverters configured in three phase.
The architecture is explained in XW Pro Multi-unit Design Guide; specifically page 45 Three-phase with External Contactor.
Schneider engineer explain how to combine the two sets by parallelling them in two, 3 pole 60A breaker in this video at timestamp 32:58.
I want to confirm my assumption about maximum current is correct.
Total power 40.8kVA => each inverter 40.8/6 = 6800 W. This matches the power of one inverter.
Each leg of 3 phase is combined at the 60A breaker, so the max current will never exceed 120A.
Is this correct that each leg of 3 phase service wire need to support minimum 120A.
Is this the correct cable to use to connect the service to main panel
SER 1/0-1/0-1/0-1/0-#2 Aluminum Round Service Entrance Cable (Cut to Length) | NorthEast Electrical
SER 1/0-1/0-1/0-1/0-#2 Aluminum Round Service Entrance Cable (Cut to Length)
www.needco.com
I see 1/0 Aluminum support this but hard to find a 5 wire cable, but 2/0 is readily available. Can you please point me to the commonly used cable for this.
Thanks
bsr