Speed and Direction of Rotating Field — Lesson 5

This lesson covers the concept of resultant field in electrical phases. It explains how to calculate the resultant field at any given time, using the example of a balanced three-phase winding carrying balanced three-phase currents. The lesson also discusses the concept of phase sequence and how reversing it can affect the direction of the resultant field. It further elaborates on the constant magnitude and speed of the rotating magnetic field produced by a balanced three-phase coil.

Video Highlights

00:26 - Explanation of phase fields and their calculations
06:06 - Calculation of the resultant field at any given time
22:40 - Explanation of the concept of phase sequence
25:38 - Discussion on the effects of reversing the phase sequence

Key Takeaways

- The resultant field in electrical phases can be calculated at any given time.
- The phase sequence plays a crucial role in determining the direction of the resultant field.
- Reversing the phase sequence can change the direction of the resultant field.
- A balanced three-phase coil carrying balanced three-phase currents produces a rotating magnetic field of constant magnitude and speed.