Here's when to use linear-static FEA and when to use a nonlinear program. Most engineering problems contain nonlinear effects. Take a paper clip, for example. Push on one end hard enough and the clip ...

In Part 1, we looked at how to size a branch circuit and walked through a simple example. So if you’re sizing a feeder, why don’t you do it the same way? Except in cases where a feeder is also ...