Автор работы: Пользователь скрыл имя, 29 Апреля 2012 в 13:09, реферат
AC motors are also fairly simple to understand. They are a little trickier to make but will need single-phase or three-phase AC power to make them work. In the little diagrams above, we have a squirrel cage ac induction motor, a permanent magnet synchronous machine, and a synchronous motor. The inventor of the three-phase AC motor was Nikola Tesla, a pioneer in electromagnetism.
Annotation ………………………...………………………………….……...3
Introduction………………………………………………………………….4
1.Three-phase AC induction motors………………………………………….6
2. Three-phase AC synchronous motors……………………………………....8
3.Advantages…………………………………………………………………9
4.Uses………………………………………………………………………...9
5.Conclusion…………………………………………………………………10
6. References……………