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WEEK. NO. 05
- Reference Learning Outcome :- Execute testing, and maintenance of DC machines and motor starters. (Mapped NOS: PSS/N4402)
- Duration :- Professional Skill 77 Hrs; Professional Knowledge 24 Hrs (for above learning out come)
TRADE THEORY (Professional Knowledge ) :-
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- Principle and types of DC motor.
- Relation between applied voltage back e.m.f., armature voltage drop, speed and flux of DC motor.
- DC motor Starters, relation between torque, flux and armature current.
TRADE PRACTICAL (Professional Skills With Indicative Hours) :- Job no. & Name of the Practical
- 116. Conduct performance analysis of DC series, shunt and compound motors. (14 Hrs.)
- 117. Dismantle and identify parts of three point and four-point DC motor starters. (06 Hrs.)
WEEK. NO. 06
- Reference Learning Outcome :- Execute testing, and maintenance of DC machines and motor starters. (Mapped NOS: PSS/N4402)
- Duration :- Professional Skill 77 Hrs; Professional Knowledge 24 Hrs (for above learning out come)
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TRADE THEORY (Professional Knowledge ) :-
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- Changing the direction of rotation.
- Characteristics, Losses & Efficiency of DC motors.
- Routine and maintenance.
TRADE PRACTICAL (Professional Skills With Indicative Hours) :- Job no. & Name of the Practical
- 118. Assemble, Service and repair three point and four-point DC motor starters. (10 Hrs.)
- 119. Practice maintenance of carbon brushes, brush holders, Commutator and sliprings. (12 Hrs.)
WEEK. NO. 07 & 08
- Reference Learning Outcome :- Distinguish, organise and perform motor winding. (Mapped NOS: PSS/N4402)
- Duration :- Professional Skill 35 Hrs; Professional Knowledge 09 Hrs (for above learning out come)
TRADE THEORY (Professional Knowledge ) :-
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- Methods of speed control of DC motors.
- Lap and wave winding and related terms.
TRADE PRACTICAL (Professional Skills With Indicative Hours) :- Job no. & Name of the Practical
- 120. Perform speed control of DC motors – field and armature control method. (10 Hrs.)
- 121. Carry out overhauling of DC machines. (10 Hrs.)
- 122. Perform DC machine winding by developing connection diagram, test on growler and assemble. (15 Hrs.)
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