CONSTRUCTION OF DC MACHINEUNIT-III

BY S RATNA KUMAR

LAP WINDING

LAP WINDING AND WAVE WINDING

WINDING PROGRESSES ,WINDING RETROGRESSES

EQUALIZER RINGS

USES OF LAP WINDING

WAVE WINDING

PROGRESSIVE WINDING,RETROGRESSIVE WINDING

DUMMY COILS

DUMMY COILS

USES OF WAVE WINDING

LAP WINDING AND WAVE WINDING

ARMATURE REACTION

ARMATURE REACTION

GNA ,MNA

EFFECTS OF ARMATURE REACTION

UNIT-4 CHARACTERISTICES OF DC MACHINES

DC GENERATOR SYMBOL

DC COUPLED MACHINES

METHODS OF EXCITATION

SEPERATELY EXCITED GENERATOR

VOLTAGE AND CURRENT RELATION

PROBLEM

SELF EXCITED GENERATOR

SHUNT GENERATOR

PROBLEM

SERIES GENERATOR

PROBLEM

SHUNT AND SERIES FIELD WINDING

LONG SHUNT COMPOUND GENERATOR

SHOT SHUNT COMPOUND GENERATOR

DC SHUNT MACHINE