What is the difference between the two class motors and the four-stage motors?
The level 2 motor represents 3, 000 revolutions per minute, and the 4 levels of the motor represent 1, 500 revolutions per minute and you need to know more about the xi 'an motor repair factory. That good point depends on your use and speed requirement!
The number of the most numerous is the relation between the electric frequency and the mechanical speed, n = 120f/P, n is the mechanical speed, f is the electric frequency, and P is the extreme number. But it doesn't have anything to do with "good." A lot of people say very many, large torque, in fact the two are no significant relationship, the poles of three-phase motor torque T = kBr * Bsk is constant, Br is the rotor magnetic field intensity, Bs is produced by the armature magnetic field intensity, * to cross. When you're in the 4 pole, you feel like you have two torque T, and the torque seems to be twice,
But, in fact, if the rotor is as large as four pole rotor between, each of the four pole rotor pole, relative only half of the poles, so Br also approximately half, almost the whole torque.
