synchronous machines
synchronous machines
synchronous machines
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DIRECT CURRENT MACHINES<br />
Major Types of DC <strong>machines</strong>.<br />
• Compound DC machine.<br />
The machine has two field windings: One connected in series; the other<br />
in parallel.<br />
The series winding provides additional, load dependent excitation.<br />
Reduced voltage drop at high load.<br />
Φ s<br />
Φ f<br />
V a
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