Dc 3 Point Motor Starter Diagram. Figure 2 shows a manual starter circuit diagram. Now the question arises that why these dc motors requires the assistance of the starter.
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Such a starter is shown in figger. The arm is spring loaded and is rotated in the clockwise direction gradually reducing the armature resistance as the motor accelerates. Now the question is why these types of dc motors require the assistance of the starter in the first place.
Connected to the positive terminal of the power source 2.
There are different types of manual starters available for dc motor namely 2 point starter 3 point starter and 4 point starter. Figure 2 shows a manual starter circuit diagram. A two point starter is used for starting dc motor which has the problem of over speeding due to loss of lod from its shaft. Connected to the positive terminal of the power source 2.