- The induction motor driven by a repulsion mechanism as known by this name is a motor that runs by repulsion method have brushes of its own arranged in a position which is known to have the highest torque position. When load is increased to 75 percent of the synchronizing speed, a default centrifugal device puts a ring with connection to the commutating bars. These bars converts the framework to a rotor of squirrel-cage. Thus the motor acts like an induction motor based on its installation features (Fig. 16).
- These motors was once used entirely where torque must have a high starting value.However, now this motor is replaced by the capacitor motors due to the following factors:
- Necessitates more preservation.
- More costly.
- The motor is too much noisy after giving a start.
- Reasons for radio interference after starting.
- Reversing is not at all easy.
The Repulsion motors gives a start, regardless of all of its drawbacks, and still is in use of fundamental-horsepower because:
- It has a torque of highest value.
- The start requires low current.
- This motor can increase speed with a heavy load than any other double capacitor motors that has a high capacitance power.
Links of Previous Main Topic:-
Links of Next Electrical Engineering Topics:-