DC Motor

Ø WorkingPrinciple of DC Motor

Ø Motor and Generator Action -Comparison

Ø Back EMF and its Importance

Ø Power Relationship in Motor

Ø Types of DC Motors

Ø Direction of Rotation of DC Motors

Ø Speed Regulation of DC Motors

Ø Torque and Speed of DC Motor

Ø Armature Reaction in DC Motors

Ø Operating Characteristics of DC Series Motor

Ø Operating Characteristics of DC Shunt Motor

Ø Operating Characteristics of DC Compound Motor

Ø Performance Curve of DC Motor
       a. Performance Curves of DC Shunt Motor
        b. Performance Curve of DC Series Motor

Ø Speed, Cost and Selection of Electric Motors

Ø Speed Control of DC Motors
       a.  Speed Control of DC Shunt Motor
        b. Speed Control of DC Series Motor

Ø Starter for DC Shunt and Compound Motors
        a. Three Point Starter
        b. Four Point Starter

Ø Series Motor Starter

Ø Electric Braking
        a. Types of Electric Braking

Ø Electrical Braking with DC Motors

Ø Losses in a DC Motor

Ø Efficiency of DC Motors

Ø Testing of DC Machine
        a. Brake Test
        b. Swinburne's Test
        c.Regenerative or Hopkinson's Test
       d. Retardation Test

Ø Testing of DC Series Machines

Ø Maintenance of DC Machines

Ø Faults in DC Machines

Ø Noise in Electric Motors - Causes and Treatments

Ø Special Types of DC Machines

Ø Thyristor Control of Electric Motors

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