2012年6月10日星期日

What is the ac and dc difference?


 
AC motor
For mechanical energy conversion and AC power machinery. Due to the tremendous development of the AC power system, AC motor has become the most commonly used motors. Compared to the AC motor and DC motor commutator (see DC motor commutation), simple structure, convenient, and relatively strong, are likely to cause high-speed, high voltage, high current, high-capacity motor. Coverage of the AC motor power from a few watts to hundreds of thousands of kilowatts, or even one million kilowatts. The early 1980s, the largest turbine generator has reached 1.5 million kilowatts.


DC motor
Definition of output or input for the DC rotating electrical machines, known as the DC motor, DC and mechanical energy conversion motor. When it motor running DC motor converts electrical energy into mechanical energy; for generator operation, DC generator, mechanical energy is converted into electrical energy.

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