Many commonly used DC motor classifications are: permanent magnet, series pole, self-excited, iterative and compound excitation. The basic structure of the motor is an electrical system consisting of a stator coil that generates a magnetic field and an armature coil and a commutator on the rotor that produces the power....+Read more

“Warm rise” is an important parameter to measure and evaluate the degree of heat generation of the motor. It is measured under thermal equilibrium when the rated load of the motor is used. The terminal customer perceives the motor as good or bad. The usual practice is to touch the motor and see how the temperature of the casing is. Although it is not accurate, it also generally controls the temperature rise of the motor....+Read more

The most familiar electric equipment for electrical workers should be the electric motor. There are many ways to start the motor, including direct start, auto-decompression start, Y-Δ step-down start, soft starter start, drive start, etc. the way. So what is the difference between them?...+Read more