Frequency Calculator for Rotating Magnetic Field

Formula

The formula to calculate the frequency of a rotating magnetic field is:

\[ f = \frac{p \cdot n}{60} \]

Where:

\( f \) is the frequency in hertz (Hz)
\( p \) is the number of magnetic poles
\( n \) is the rotational speed in revolutions per minute (r/min)

What is Frequency in a Rotating Magnetic Field?

The frequency of a rotating magnetic field in an electric machine is determined by the number of magnetic poles and the rotational speed of the machine. This frequency is essential in the design and operation of electric motors and generators, as it influences the performance and efficiency of these devices.

Example Calculation

Let's assume the following values:

Number of Magnetic Poles (\( p \)): 4
Rotational Speed (\( n \)): 1500 r/min

Step 1: Calculate the frequency:

\[ f = \frac{4 \cdot 1500}{60} = 100 \text{ Hz} \]