Sem-IV

1 Three phase Induction motor
Free hand sketching of Slip-ring and Squirrel cage Induction motor.
Typical wiring diagram for drum controller operation of A.C. wound rotor motor.
Drawing the schematic diagram of Autotransformer starter, DOL starter and Star Delta
Starter.
Drawing the schematic diagram of A.C. motor speed control by SCR /AC Drive.

2 Alternator
Tracing of panel wiring diagram of an alternator.
Drawing the schematic diagram of automatic voltage regulators of A.C. generators.

• Determine the value of resistance by colour code and identify types.
• Test active and passive electronic components and its applications. 
• Determine V-I characteristics of semiconductor diode. 
• Construct half wave, full wave and bridge rectifiers using semiconductor diode. 
• Check transistors for their functioning by identifying its type and terminals. 
• Bias the transistor and determine its characteristics. 
• Use transistor as an electronic switch and series voltage regulator. 
• Operate and set the required frequency usi

• Resistors – colour code, types and characteristics. Active and passive components. Atomic structure and semiconductor theory.
• P-N junction, classification, specifications, biasing and characteristics of diodes. Rectifier circuit - half wave, full wave, bridge rectifiers and filters. Principle of operation, types, characteristics and various configuration of transistor. Application of transistor as a switch, voltage regulator and amplifier.
• Basic concept of power electronics devices.