How Do You Calculate Torque and RPM in a 3-Pole Pair Synchronous Motor?

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SUMMARY

The discussion focuses on calculating torque and RPM for a 3-pole pair synchronous motor operating at a line frequency of 50 Hz and delivering a mechanical power of 1200 W. Key equations involve determining the angular velocity of the rotary magnetic field and subsequently calculating the number of rotations per minute (RPM) and torque. The importance of showing working steps for accurate assistance is emphasized, highlighting the educational context of the inquiry.

PREREQUISITES
  • Understanding of synchronous motor principles
  • Knowledge of angular velocity calculations
  • Familiarity with torque equations in electrical engineering
  • Basic grasp of mechanical power formulas
NEXT STEPS
  • Learn how to calculate angular velocity in synchronous motors
  • Research the relationship between torque and power in electric motors
  • Explore the formula for calculating RPM from frequency and pole pairs
  • Study the impact of pole pairs on motor performance
USEFUL FOR

Electrical engineers, students studying motor dynamics, and professionals involved in motor design and analysis will benefit from this discussion.

Marketgirl
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Homework Statement


a synchronous motor has ;
pole pairs =3
line frequency = 50hy
mechanical power P=1200W


Homework Equations





The Attempt at a Solution


the questions are
angular velocity of the rotary magnetic field = (i solved this one)
number of rotations 1/min units = ?
the torque of the motor =?


thank you from now
 
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Hi Marketgirl. You are required to show some working before you can be assisted in these forums.

The notation (i solved this one) [/color] in lieu of any working does not earn credit in examinations, nor does it here, unfortunately.
 
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