How do you determine/calculate the total load based on the nameplates ( FLAs)? I am trying to find the proper way to size up a transformer with load factor data not available. I know according to NEC and for an existing installation, we can use max demand data over one year with exception of 30 days period. The result will be multiplied by 125% + new load and must not exceed the service rating:
Thank you
- The maximum demand at 125 percent plus the new load does not exceed the ampacity of the feeder or rating of the service.
- The feeder has overcurrent protection in accordance with 240.4, and the service has overload protection in accordance with 230.90.
Thank you