Question

What are different types of losses in a DC motor.

Answer 1

Types of Losses in a DC Machines

The losses can be divided into three types in a dc machine (Generator or Motor). They are.

Mechanical losses.

Armature copper loss = I2a Ra

Shunt field copper loss = I2shRsh

Series field copper loss = I2se Rse

Hysteresis loss Ph= ηB16max fV watts.

Eddy Current loss Pe=KeB2maxf2t2V Watts.

Answer 2

I hope this will help you