pdh,
Can you document a problem that has actually occurred in the field in either a single or three phase system that was conclusively caused by harmonics? It seems that almost all of the information on the problems caused by harmonics comes from people (companies) with a vested economic interest in solving the problem. Also how is the heating problem that you described in your post a "harmonic" problem?
The above system should eventually trip the 100 amp breaker since the load would be the equivalent of 113.137 amps continuous.
It is very possible that 113 amps will never trip a 100A breaker. The trip curve for a major brand of breakers show that a 113A load on their 100A breaker will trip between 400 seconds and never.
Don
Don
