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Drum Controller for DC Series Motor

Drum Controller for DC Series Motor

Drum Controller for DC Series Motor: DC series motors are often employed on cranes, elevators, tramcars and other applications, where the motor is under the direct control of an operator. In these applications, frequent starting, variations of speed, stopping and reversing may be necessary. A manually operated controller, more rugged than a starting rheostat, called

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Repulsion Induction Motor – Construction, Working Principle and Applications

Torque-Speed Characteristic of a Repulsion Induction Motor

Repulsion Induction Motor – Construction, Working Principle and Applications: The repulsion induction motor has a single phase stator winding, as a repulsion-start induction motor has, but it has two separate and independent windings on rotor in common slots. The inner winding is a squirrel cage winding with rotor bars permanently short-circuited while outer winding is

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Compensated Repulsion Motor – Construction and Working Principle

Compensated Repulsion Motor

Compensated Repulsion Motor – Construction and Working Principle: Compensated Repulsion Motor is a modified form of the repulsion motor. It is provided with an additional winding, called the compensating winding, to improve power factor and provide better speed regulation. This winding is much smaller than the stator winding and is usually wound in the inner

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Repulsion Motor – Construction, Working Principle and Applications

Repulsion Motor

Repulsion Motor – Construction, Working Principle and Applications: The characteristics of repulsion motors are similar to those of a series motor, i.e., high start­ing torque and high light-load speed. Its construction is also similar to that of a series motor except that armature is short circuited on itself instead of being connected in series with

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