Choose Best Pole-Slot to Increase Motor Speed

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Discussion Overview

The discussion revolves around selecting the appropriate number of pole-slots to increase the speed of a motor, specifically in the context of permanent magnet (PM) motors. Participants explore various factors influencing motor speed, including voltage, load, and motor specifications.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks suggestions on the optimal number of pole-slots to enhance motor speed.
  • Another participant defines PM motors as permanent magnet motors.
  • A different participant claims that for a DC motor with a commutator, speed is independent of the number of pole slots and is instead influenced by motor voltage.
  • This participant suggests that to increase speed, one could reduce the number of turns on each pole while increasing wire thickness to maintain copper weight, or alternatively increase voltage and reduce load.
  • Questions are raised about whether the magnet or the wound armature is moving, and the power rating of the motor (e.g., 500mW vs. 500kW), indicating a need for more specific information about the motor and desired speed increase.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between pole slots and motor speed, with some asserting independence while others suggest various methods to achieve speed increases. The discussion remains unresolved with multiple competing views present.

Contextual Notes

Participants have not provided specific details about the motor type, load conditions, or the desired speed increase, which may limit the applicability of their suggestions.

kerol
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hye everyone...I wish to ask help from all of you make suggestions to me to choose number of pole-slot that suitable to increase the speed of motor.thank.
 
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What is a PM motor ?
 
PM permanent magnet
 
If this is a DC motor with a commutator then speed is independent of the number of pole slots.
Unloaded speed is proportional to motor voltage. To increase speed, reduce the number of turns on each pole while thickening the wire to maintain the same weight of copper. Alternatively, increase the voltage and reduce the load.

What moves, the magnet or the wound armature? Is it a 500mW or 500kW motor?
You need to be more specific about the motor and load you have and how much faster you want it to go.
 

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