A generator is the conversion of mechanical energy into electrical energy. An electric motor is the conversion of electrical energy into mechanical energy. Electric motors and generators are two opposite concepts. We answer from their working principle, energy conversion and the difference in use.
A, the difference between the working principle
The working principle of the generator: there are two types of alternators and DC generators, the rotor and drive machinery connected together, driven by the drive machinery rotation, there is a DC through the rotor winding and generate a magnetic field, the magnetic field of this rotation of the magnetic lines of force cutting the generator stator windings, thus generating potential in the stator windings, multiple windings in series to form a voltage and output power. (The law of electromagnetic induction and the law of electromagnetic force).
The working principle of electric motor: the energized conductor rotates under the action of electromagnetic force and drives the driven machinery to rotate and perform work. Electric motors are divided into DC and AC motors.
Second, the difference between energy conversion
Electric motor: electrical energy is converted into mechanical energy.
Generator: mechanical energy is converted into electrical energy.
Three, the use
Generator: It is mainly used as a backup power supply in case of emergency lack of power supply.
Electric motors: are widely used in automobile motors, life appliances such as electric fans, refrigerators, air conditioners, vacuum cleaners, washing machines, etc.