State different types of electrical signal and draw all types of waveforms. Answer : Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms ...
For a class D commutation, answer the following: i) Explain the operation with circuit diagram. ii) Interpret with waveforms. Answer : Class D commutation: This is also called as auxiliary commutation because it uses an auxiliary SCR to switch the charged capacitor across conducting SCR to turn it off. In this scheme, the main ... make SCR1 forward biased and keep ready for next triggering. The above cyclic process is repeated. ...
List the main parts of D.C. motor Answer : Main parts of D.C. motor and their functions: Part Functions Yoke i) Provides mechanical support for poles. ii) Acts as protecting cover for machine. iii) Carries magnetic flux. ... a fixed physical position relative to the stator. Shaft Used to transfer mechanical power ...
Write two applications of D.C. series motor. Answer : The applications of D.C. series motor: 1. Cranes 2. Hoists 3. Trolley and cars 4. Conveyors 5. For traction work i.e. electric locomotives 6. Elevator 7. Air compressor...
State the principle of operation of d.c. motor. Answer : When a current carrying conductor is placed in a magnetic field, the conductor experiences the force. The magnitude of force is given by F = BIL newton where F – Force B – maximum flux density I – Current L – Length of conductor...
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