synchronous machines
synchronous machines
synchronous machines
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DIRECT CURRENT MACHINES<br />
DC machine Construction<br />
Dc motor construction<br />
• The major advantages of DC<br />
<strong>machines</strong> are: easy speed and<br />
torque regulation.<br />
• The stator of the DC motor has<br />
poles, which are excited by DC<br />
current to produce magnetic fields.<br />
• The rotor has a ring-shaped<br />
laminated iron-core with slots.<br />
• Coils with several turns are placed in<br />
the slots. The distance between the<br />
two legs of the coil is about 180<br />
electric degrees.<br />
N<br />
Field<br />
Brush<br />
S<br />
Rotor<br />
Stator with<br />
with poles
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