New motor circuit calculator

I have begun work on a motor circuit calculator for under 600 volts and for up to 500 horsepower for one and three phase. This calculator uses features from the Table 310.16, OCPD, and voltage drop calculator expanded to find the nontime delay fuse, dual element time delay fuse, instantaneous trip circuit breaker, and inverse time trip circuit breaker sizes. It uses data from Tables 40.248, 430.250 and 430.52. I may add duty cycle from table 430.22(E), disconnect size, and motor controller size. I just started today and was surprised how fast it is coming together. After this one, I think I will do a motor compressor calculator.