Understanding DC Machines and Testing Techniques

This course covers the comprehensive understanding of Direct Current (DC) machines, their testing techniques, and efficiency calculations. It provides a deep dive into the connection of machines, the concept of the Hopkinson test, and the Swinburne test. For instance, learners will explore how two machines are connected as a shunt machine, how their armatures and fields are arranged, and how to calculate the efficiency of a machine. The course also delves into the intricacies of armature winding in DC machines, focusing on lap winding and wave winding. It further explains the importance of coil span and commutator pitch in determining the induced voltage in a coil.