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Questions and Answers
What is the origin of the name 'synchronous' for synchronous machines?
What is the origin of the name 'synchronous' for synchronous machines?
- It comes from 'syn' meaning system and 'chronos' meaning frequency
- It comes from 'syn' meaning symmetrical and 'chronos' meaning rotation
- It comes from 'syn' meaning synchronized and 'chronos' meaning speed
- It comes from 'syn' meaning equal and 'chronos' meaning time (correct)
What type of AC machine has a field circuit supplied by an external DC source?
What type of AC machine has a field circuit supplied by an external DC source?
- Synchronous machines (correct)
- Induction machines
- Single-phase machines
- Three-phase machines
What determines the mechanical shaft speed of synchronous machines?
What determines the mechanical shaft speed of synchronous machines?
- The induced voltage frequency
- The DC field winding on the rotor
- The power system’s line frequency (correct)
- The AC armature winding on the stator
What is the function of the field circuit in synchronous machines?
What is the function of the field circuit in synchronous machines?
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Why are synchronous machines called 'synchronous'?
Why are synchronous machines called 'synchronous'?
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