AC Rotating Magnetic Field Principle

The dark green plot in the phase diagrams is the resulting relative magnitude of the magnetic field created by the sine wave source currents. Within the vector plots, the red ball represents the time position and the dashed black vector is the resultant vector when the phases are added together.
The consistent magnitude of the magnetic field is apparent when viewing poly-phase systems and varies greatly with a single-phase source. Adjusting the magnitude or phase displacement of one of the phases in any of the systems illustrates the resulting change in magnetic field magnitude. Any inconsistency in the magnitude of the magnetic field results in a change in torque development and possibly speed variation of an electrical machine.
Phase can be adjusted in magnitude and phase relationship to the other phases. This allows for demonstrating the effects of high or low current on a leg due to voltage variations. The phase adjustment allows for illustration of the effects of a power factor change on one phase only.



  • [Snapshot]
  • [Snapshot]
  • [Snapshot]
  • [Snapshot]
  • [Snapshot]
  • [Snapshot]
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.

Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-Step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2018 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+