SAP 22524 IMP Questions for MSBTE Winter 2024 Exam

Welcome to Practicalkida, In this blog post, we shared Switchgear And Protection SAP 22524 IMP Questions for the MSBTE Winter 2024 Exam.

Maharashtra State Board of Technical Education MSBTE winter exam starts in December 2024.

To help electrical fifth-semester students we share all important questions below.

SAP 22524 IMP Questions for MSBTE Winter 2024 Exam

• UNIT I: BASICS OF PROTECTION
• 2 Marks Questions

1. Classify current limiting reactors based on location.
2. Differentiate between symmetrical and unsymmetrical faults. (any two points)
3. State the function of the current limiting reactor.
4. State the difference between normal and abnormal conditions in the power system.
5. State four functions of the protective system.

• 4 Marks Questions

1. With the help of a suitable diagram explain the importance of back-up protection.
2. Explain in brief four causes of faults in the power system.
3. With a neat diagram explain generator reactors.

• UNIT II: CIRCUIT INTERRUPTION DEVICES
• 2 Marks Questions

1. Define i) making capacity and ii) short-time circuit breaker rating.
2. List any two advantages and two disadvantages of the vacuum circuit breaker.
3. State the factors to be considered while selecting MCCB for motor protection.
4. State the need for insulation coordination.

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• 4 Marks Questions

1. Define the following terms related to current interrupting devices: i) arc voltage, ii) re-striking voltage, iii) recovery voltage, and iv) RV
2. Compare HRC fuse and Circuit breakers as interrupting devices on any four points.
3. Describe the arc extinction in the SF6 circuit breaker with a neat sketch.
4. Define the following terms related to CB:
   • i) Rated normal current ii) Rated breaking current:
   • iii) Short time rating iv) Symmetrical breaking current
5. With the help of a neat sketch explain the working of ELCB.
6. Compare the MCCB with ELCB on any three points. State the application of the RCBO.
7. Explain with a neat sketch pantograph type of isolator. State the sequence of operation of the isolator, CB, and earthing switch while opening and closing.

Conclusion

We listed all the important questions of Switchgear And Protection above and solved them using the SAP textbook.

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