A Practical Primer On Motor Drives (Part 5): Three-Phase AC Line Current And Winding Configurations
by Ken Johnson, Teledyne LeCroy, Chestnut Ridge, N.Y., How2Power Today, Jun 15 2016
Focus:
In the previous part, the measurement of single-phase ac currents was described. This broad
overview on motor drives continues here with a description of the current vectors in three-phase
ac systems, how current flows in wye and delta winding configurations, and how it is measured.
What you’ll learn:
- How to understand wye and delta three-phase winding conventions
- How to measure three-phase ac currents using oscilloscopes
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