If all the contributions are remote, then in step 1332 the remote MF (MFr) can be calculated and Tint can be calculated using the following: Iint=r*Iintrmssym
If all the inputs are local, then in step 1334 MFl can be calculated and Iint can be calculated using the following: Iint=MFl*Iintrmssym
If the contributions are from NACD, then the NACD, MFr, MFl, and AMFl can be calculated in step 1336. If AMFl is less than 1, then AMFl can be set equal to 1. lint can then be calculated using the following: Iint=AMFl*Iintrmssym/S.
In step 1338, the 3-phase device duty cycle can be calculated and then it can be determined in step 1340, whether the device rating is greater than or equal to Iint. Whether the device passed or failed can then be determined in steps 1342 and 1344, respectively. The percent rating can be determined in step 1346 using the following: % rating=Iint*100/3p device rating.