Asked by Naderay Atefi on May 22, 2024

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A squirrel-cage rotor induction motor has a synchronous speed of 3600 RPM and an actual rotor speed of 3450 RPM. What is the percent slip?

A) 4.17%
B) 4.35%
C) 24%
D) 23%

Synchronous Speed

The speed at which the magnetic field in an AC machine rotates, typically in motors or generators, determined by the machine's electrical frequency and the number of magnetic poles.

Rotor Speed

The rotational speed of the rotor in a motor or generator, typically measured in revolutions per minute (RPM).

Percent Slip

In an induction motor, the difference between the synchronous speed and the actual rotor speed, expressed as a percentage of the synchronous speed.

  • Compute the average percent slip in squirrel-cage induction motors.
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SZ
samia zafarMay 23, 2024
Final Answer :
A
Explanation :
Slip is calculated as [(Synchronous Speed - Actual Speed) / Synchronous Speed] * 100. So, [(3600 - 3450) / 3600] * 100 = 4.17%.