EEE - III SEM - ELECTRICAL MACHINES I STUDY MATERIALS

 

ELECTRICAL MACHINES 1

UNIT – 1 ( 10 MARKS )

1.     ARMATURE REACTION IN DC GENERATORS

2.     TYPES OF DC GENERATORS

3.     EMF EQUATION OF DC GENERATORS

4.     METHODS OF IMPROVING COMMUTATION

5.     CAUSES OF FAILURE TO BUILD UP EMF AND REMEDY:

 

UNIT – 2 ( 10 MARKS )

1.     FOUR POINT STARTER

2.     THREE POINT STARTER

3.     SPEED CONTROL OF DC MOTORS

4.     SERVO MOTOR

5.     PERMANENT MAGNET  DC  MOTOR  ( PMDC )

 

UNIT -3 ( 10 MARKS )

 

1.      IDEAL TRANSFORMER

2.     AUTO TRANSFORMER

3.     PARALLEL OPERATION OF SINGLE-PHASE TRANSFORMERS

4.     EMF EQUATION OF TRANSFORMER:

5.     Condition For Maximum Efficiency

6.     ALL-DAY (OR ENERGY) EFFICIENCY

 

UNIT – 4 ( 10 MARKS )

1.     ON-LOAD TAP CHANGER:

2.     PARALLEL OPERATION OF THREE PHASE TRANSFORMER AND CONDITIONS

3.     THREE PHASE TRANSFORMER CONNECTION

4.     CONSTRUCTION OF THREE PHASE TRANSFORMER

5.     BUCHHOLZ RELAY:

 

 

UNIT -5 ( 10 MARKS )

1.     MEASUREMENT OF EARTH RESISTANCE

2.     TRANSFORMER OIL TESTER: ( BDV TEST )

3.     ACIDITY TEST:

4.     PROCEDURE FOR PREVENTIVE MAINTENANCE:

5.     RESURFACING OF COMMUTATOR

6.     DEFECTS IN COMMUTATOR AND REMEDIES

 

EEE - III SEM - ELECTRICAL MACHINES I STUDY MATERIALS

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