Power Electronics diploma important questions

Power Electronics diploma important questions

Dear Friends,

Hi, Welcome to Diploma Exam Corner, In this Section You can find Diploma EEE Study materials and We have added Power Electronics Diploma Important questions. You can Download Power Electronics Diploma Important Questions as Pdf once we complete all the units

Power Electronics diploma important questions
Power Electronics diploma important questions

Subject: Power Electronics

Year : III

Unit – 1 Overview of Power Electronics

Two and Three Marks

  1. Specify the various parts for designing the power electronic equipment.
  2. Define forward break over voltage of SCR.
  3. Define Holding current and Latching current
  4. What are the types and requirements of gate triggering circuits?
  5. Draw the symbol of IGBT and mention its terminals
  6. What are the conditions to turn OFF the conducting SCR?
  7. What is meant by forced commutation? Explain Class B commutation with the circuit diagram.
  8. Define dv/dt and di/dt.
  9. What are the methods used for triggering the SCR?

Ten Marks.

  1. With a neat diagram explain the operation of MOSFET.
  2. With a diagram explain IC based triggering circuits for SCR and TRIAC.
  3. Draw the circuit diagram of synchronized UJT triggering circuit and explain its operation.
  4. Explain Class B commutation with diagram.
  5. With the neat diagram, Explain the principle of operation of IGBT.
  6. Explain the driver and buffer circuits for thristor.
  7. Explain any two types of forced commutation circuits.

Unit – 2, Line Commutated Power Control Circuits 

Two and Three Marks Questions

  1. Define AC Voltage Controller. Mention its two types of Control
  2. Name the types of line commutated converters
  3. Define input power factor.
  4. Define Dual converter
  5. State the applications of phase controlled rectifier.
  6. What is Extinction angle?
  7. What are the effects of free wheeling diode?
  8. Write short notes on rectifying and inverting modes of full converter.

10 Marks

  1. With the neat sketch explain halfwave controlled rectifier with R load
  2. Explain with the diagram the operation of extinction angle control of single phase converter.
  3. With the diagram explain the operation of three phase half controlled bridge converter with RL load.
  4. Explain the operation of three phase fully controlled bridge converter with RL Load.
  5. With the diagram explain the operation of three phase dual converter.
  6. Explain the operation of twelve pulse converter with circuit diagram.

Unit -3, Forced Commutated Power Control Circuits. 

Ten Marks

  1. With the diagram explain the operation of Buck – Boost Converter.
  2. With the diagram explain the operation of sinusoidal pulse width modulation inverters.
  3. Explain the operation of single phase full bridge inverter with diagram and waveforms.
  4. Explain the operation of Buck converter.

Unit 4 – Applications of Power Electronics. 

Ten Marks

  1. Explain Induction heating with a diagram.
  2. With the block diagram, Explain the wind and small hydro inter connection.
  3. With the diagram, Explain the operation of single phase full converter drives.

Unit – 5, Motor Drive Applications.

  1. With the diagram explain the operation of speed control of slip ring motors by using rotor resistance.
  2. Explain the line frequency converters with the diagram.
  3. With the diagram, Explain the variable frequency PWM – VLSI drives.
  4. With the diagram, Explain DC motor with separately excited field Winding.
Join Diploma EEE Study Materials 
WhatsApp Group  Click here
Telegram Group  Click here
Powered By Diploma Exam Corner

 

Check more Diploma EEE Study Materials 
Distribution and Utilization Click here
Operation and Maintenance of Electrical Equipment Click here
Powered By Diploma Exam Corner

Leave a Comment

Ads Blocker Image Powered by Code Help Pro

Ads Blocker Detected!!!

We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker.

error: Content is protected !!