Page 11 - Basic Electrical Engineering

7.12.3 Characteristics of DC Compound Motors

7.13 Losses and Efficiency

7.13.1 Losses in a DC Machine

7.13.2 Efficiency of DC Machine

7.13.3 Condition for Maximum Efficiency

7.14 Applications of DC Machines

7.14.1 DC Generators

7.14.2 DC Motors

7.14.3 DC Series Motors

7.14.4 DC Compound Motors

7.15 Solved Numerical Problems

7.16 Review Questions

8. Three-phase Induction Motors

8.1 Introduction

8.2 Constructional Details

8.3 Windings and Pole Formation

8.4 Production of Rotating Magnetic Field

8.5 Principle of Working

8.6 Rotor-induced EMF, Rotor Frequency, Rotor Current

8.7 Losses in Induction Motors

8.8 Power Flow Diagram

8.9 Torque Equation

8.10 Starting Torque

8.11 Condition for Maximum Torque

8.12 Torque–Slip Characteristic