Please! Who knows what's different between "nominal power" and "peak power"?

Question

When people talk about the electric motor, why talking about nominal power and peak power? and they are all "power", why makes a difference?

And what is "phase inductance" and why is the rotor posistion so important?
Thanks~

Answer 1

Red has the correct discription of nominal and peak power.

Inductors cause a phase shift between voltage and current usually known as the power factor. The closer the power factor is to 1 the more efficient the motor will run.

Rotor position is important to keep the energy produced (or consumed) balanced. This helps to keep the motor running at the nominal power and prevents damage.

Answer 2

Peak power is the highest power output a generator can have during a cycle. Nominal power is the actual usable ammount you can get over a period of time (or over a number of cycles). If you look at gas powered generators, you will note that it has two power ratings. For instance, one may say 5700Kw (which is the Peak output) but it also has a lower rating like 5400KW (nominal power) which is the max load you can have on the generator before it dies on you. Cheers!

Answer 3

nominal power is the average or what it should run at normally. If you crank the juice up, peak is what you would reach before it blows up.