Electrical Engineering › Section Z · AC motors › Topic Z.2
Synchronous motors, synchronous condensers, and reluctance motors
A synchronous motor turns in exact step with the supply frequency, whatever its load, and by adjusting its field it can even correct a plant's power factor. Reluctance motors reach the same lock-step with nothing on the rotor but shaped iron.
In this topic
- Locked to the supply
- The rotating field and synchronous speed
- Worked example: poles for a clock motor
- Load angle and pull-out torque
- Worked example: how far the rotor falls back
- Starting a synchronous motor
- Field current and power factor
- Worked example: a synchronous condenser
- Condensers on the grid
- Reluctance motors
- Common mistakes to avoid
- Key takeaways
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