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What is a motor armature?
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Write the armature current and voltage relationship of a Separately excited DC Generator.

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How does armature reaction affect machine performance?

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Why field rheostat is kept in minimum position while armature rheostat at maximum position?

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In the motors starting purpose why the armature rheostats at maximum position while the field rheostat is kept in minimum position?

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What are the two major methods of minimizing the effects of armature reaction?

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What is the best way to minimize the eddy current in an armature?

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What is the best way of minimizing eddy currents in an armature?

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Define armature reaction in an alternator. Explain the effect of armature reaction at various power factors of loads of alternator.

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State any four advantages of having stationary armature in case of three phase alternator.
Answer : In a three-phase alternator, having a stationary armature (i.e., the armature is fixed and the rotor rotates) provides several advantages: 1. **Simplified Design**: A stationary ... seen in machines with rotating armatures. This leads to lower maintenance requirements and longer operational life....

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What type of material is used to make the armature core?

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What is the significance of lamination in the armature?

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What is the significance of air holes in the armature?

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