Motor

Let me give you a straightforward example. When you push a heavy rock, do you need to exert a lot of force at the moment of pushing? After that, with a certain level of force, you can keep pushing it. Initially, you have to overcome static friction; once it starts moving, you then need to overcome kinetic friction. Even without scientific calculations, it can be understood using common sense, right?

At startup, the instantaneous current is high, but it gradually returns to normal

I have a question: which has a higher starting current, an unloaded motor or a motor under load, or are they the same?

The pneumatic current of a motor under load is high. Is the example I gave incorrect? Is it more difficult to start running with a backpack on or without one? If you can’t figure it out, try carrying a stone on your back

Have you ridden a bicycle? The same principle applies

Electric motors have high starting currents, as the magnetic field is strong at the beginning, which leads to an increase in current. A motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field that acts on the rotor, creating a magnetomotive force torque. Electric motors can be classified into DC motors and AC motors based on the type of power source they use. Most motors in power systems are AC motors, which can be either synchronous or asynchronous motors; in such motors, the speed of the stator’s magnetic field does not match the speed at which the rotor rotates. An electric motor is mainly composed of a stator and a rotor. The direction in which the current-carrying wires move under the influence of a magnetic field depends on the direction of the current and the direction of the magnetic field lines. The working principle of a motor is that a magnetic field exerts a force on electric current, causing the motor to rotate.