China motor power also includes DC motor. Application principle of DC generator: generator is usually composed of stator, rotor, end cover, brush, frame and bearing, etc.The stator is composed of the frame, the stator core, the wire wrap winding, and other structures that hold these parts together.Rotor by the rotor core, rotor magnetic pole (magnetic pole winding), slip ring, (also known as copper ring. Collector ring), fan and shaft components.Through bearing, frame and end cover to the generator stator, rotor connected together, can make the rotor spinning in the stator, through access to slip ring must be exciting current, make the rotor, a rotating magnetic field of the stator coil cutting lines of magnetic force to do exercise, thus induced potential, through the terminal lead, in the loop, the current is produced.
In terms of physical structure, the stator and rotor of a generator are completely independent and non-interfering parts except the drag of a prime mover.The stator of a generator is an active power source, which generates induced electromotive force and current. Under the drag of the prime mover, the active power of alternating current is output outward, and the active power is determined by the prime mover (amount of oil, air, air, water, etc.).
The rotor of the generator is a reactive source and the winding is introduced from the outside to establish a magnetic field. Under the drag of the prime mover, the reactive power of the ac current is transmitted outward, and the reactive power is determined by the direct current of the external input (most of which are obtained by the spontaneous ac current rectification of the generator).In terms of electromagnetic principle, the rotor and stator are in a precise relationship. The active power and reactive power of the generator are output by the stator. The torque of the rotor determines the active power and the DC current of the rotor coil determines the reactive power.
