Understanding Voltage Induction in Armature Conductors — Lesson 2

This lesson covers the concept of voltage induction in armature conductors under open circuit conditions. The lesson explains how to calculate the voltage induced in a single conductor and then extrapolates this to multiple conductors in parallel paths. It emphasizes the importance of considering the number of conductors present in a parallel path rather than the total number of armature conductors. The lesson also explains how to calculate the total number of armature conductors, considering multi-turn coils and the number of coil sides in each slot.

Video Highlights

01:44 - Explanation of the voltage available across the armature terminals
09:32 - Explanation of the voltage available across the armature terminals
14:16 - Explanation of the expression for torque and electromagnetic torque
27:23 - Discussion on the total torque experienced by a single conductor
31:01 - Explanation of the total electromagnetic torque

Key Takeaways

• The total voltage induced across the armature terminals is not simply the voltage induced in a single conductor multiplied by the total number of armature conductors.
• The total number of armature conductors includes all coil sides in each slot, considering multi-turn coils.
• The total number of armature conductors can be calculated by multiplying the number of slots by the number of coils in each slot.