That's good stuff...thanks for the diagram.

Now if I have a 20 amp circuit, 120 volts, resistance of .01 ohms, then if I short it to ground it will deliver 1200 amps.

Then, for about 5 cycles, it's still delivering 1200 amps - until the 5 cycles are over, at which time the circuit breaker pops? Please correct me if I'm wrong.

So the circuit breaker waits 5 cycles before doing anything...and during the brief time it takes for those 5 cycles to occur, the 1200 amp load goes through the 20 amp breaker, but the amp load doesn't have time to hurt me (short duration)?

Is this correct?