Is the transformer a motor? Most people are wrong! Let me take you into the world of motors!
Are you all sorts of different types of motors? Let me introduce you to the type of motor and its role!
The motor is a machine that uses the principle of electromagnetic induction. It is widely used, has a wide variety of functions, has different performances, and has many classification methods. According to the function, the motor can be divided into generators, motors and transformers. Therefore, it is necessary to describe the devices on which the motors are used.
The function of the generator is to convert mechanical energy into electrical energy;
The function of the motor is to convert electrical energy into mechanical energy;
Asynchronous motors can be used in such a wide range of applications because of their simple structure, ease of manufacture, reliable operation, low price and high efficiency. Therefore, asynchronous motors are often found in some low-voltage equipment.
2. Synchronous motor
The synchronous motor is also an AC motor, and the synchronous motor is mainly used as a generator. Alternating currents in power grids are almost always generated by synchronous generators in power plants, so synchronous motors are widely used in high-voltage motors.
Third, DC motor
A DC motor is a device that converts mechanical energy and DC power. The DC motor is reversible and can be operated as a generator or as a motor. Early DC power supplies were mainly derived from DC generators. For example, DC power generators are used for DC power supplies required for electroplating, electro-metallurgy, etc., and exciters for synchronous generators. In recent years, due to the rapid development of power electronics technology, DC power sources are mainly derived from thyristor rectifier power supplies. DC motors have excellent speed control performance, starting performance and braking performance, and are therefore widely used in electric locomotives, rolling mills, machine tools, winches and lifting equipment, especially in high-precision, high-performance electric drive systems. DC motors are widely used. Compared with AC motors, DC motors have commutators, which are complicated in structure, high in cost, inconvenient to maintain, and have poor reliability, especially commutation problems, which limits their development and application. In recent years, with the increasing maturity of AC speed regulation technology, the speed regulation performance of AC motors can be comparable to DC motors, resulting in the tendency of DC motors to be replaced by AC motors.