Pitch Factor and Winding Factor in Coils — Lesson 2

This lesson covers the concept of elliptical machines and coil distribution. It explains the distribution factor and how coils are distributed in elliptical machines. The lesson also discusses the angle between two consecutive slots and the number of coils distributed. It further elaborates on the concept of distribution factor using a practical example of a four-pole machine. The lesson also introduces the concept of pitch factor and explains how to calculate the RMS voltage induced in coils. Towards the end, the lesson discusses the concept of a short pitched coil and how it affects the induced voltage.

Video Highlights

01:16 - Discussion on the angle between two consecutive slots
05:15 - Practical example of a four-pole machine
10:37 - Introduction to pitch factor
13:35 - Discussion on short pitched coil
20:44 - Calculation of induced voltage in short pitched coil

Key Takeaways

- The distribution factor in elliptical machines is generally less than one.
- The angle between two consecutive slots and the number of coils distributed are crucial factors in coil distribution.
- The pitch factor is another important concept in elliptical machines, which affects the RMS voltage induced in the coils.
- A short pitched coil, which falls short of 180 degrees, can still induce some RMS voltage, but it will be less than that of a full pitched coil.