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  • Power System-1 BTEE-405 4th Sem B.Tech EE PTU Nov 2016 Paper

Power System-1 BTEE-405 4th Sem B.Tech EE PTU Nov 2016 Paper

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Download Previous Year PTU University Question  Paper of Power System-1 BTEE-405 4th Sem Batch 2011 Onwards B.Tech PTU Nov 2016 Question Paper

B.Tech. (EE-2011 Batch)

POWER SYSTEM-1

Subject Code : BTEE-405          Paper ID : [ A1208]

Time : 3 Hrs.                          Max. Marks : 60

INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions

Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU Nov 2016 Question Paper

SECTION-A

Q1. Write Short Notes on :

  a) Why is electrical power preferably to be transmitted at a high voltage?

  b) What is the purpose of insulator?

  c) What are the materials mainly used in bus bar?

  d) What is the main purpose of armouring?

  e) State Kelvin’s law.

  f) Why all overhead lines use ACSR conductors?

  g) What is meant by inductive interference?

  h) Why transpositions of conductors are done in overhead lines?

  i) Define regulation of power transmission line.

  j) What are the different tests that are conducted on an insulator?

                                      SECTION-B

Q2. Attempt any FOUR questions.                                                                    5×4=20

    2. What are the AC transmission and distribution level voltages we have in India?

   3. Why the concept of self G.M.D is not applicable for capacitance?

   4. What are the various properties of insulators? Also briefly explain about suspension type insulators.

   5. Explain any two methods of grading of cables.

   6. Discuss reactive power requirement of system and series compensation.

                                     SECTION-C

Q3. Attempt any TWO questions.                              2×10=20

   7. Derive the expression for capacitance of a 1 transmission line.

   8. A three phase 5 km long transmission line having resistance of 0.5 , / km and inductance of 1.76 mH/km is delivering power at 0.8 pf lagging. The receiving end voltage is 32 kV. If the supply end voltage is 33 kV, 50 Hz, find line current, regulation and efficiency of the transmission line.

   9. A transmission line conductor at a river crossing is supported from two towers at heights of 30 m and 90 m above water level. The horizontal distance between the towers is 270 m. If the tension in the conductor is 1800 kg and the conductor weighs 1.0 kg per meter. Find the clearance between the conductor and the water at a point midway between the towers? Assume parabolic configuration.

Power Plant Engineer ing BTEE-406 4th Sem Batch 2011 Onwards B.Tech PTU April 2019 Question Paper

Get Started

Section a Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU NOV 2016 Question Paper

Why is electrical power preferably to be transmitted at a high voltage?

Explain Why is electrical power preferably to be transmitted at a high voltage.

 

What is the purpose of insulator?

Purpose of insulator

 

What are the materials mainly used in bus bar?

Materials mainly used in bus bar.

 

What is the main purpose of armouring?

Main purpose of armouring.

 

 State Kelvin’s law.

Kelvin’s law.

 

Why all overhead lines use ACSR conductors.

Explain Why all overhead lines use ACSR conductors.

 

What is meant by inductive interference?

Inductive interference

 

Why transpositions of conductors are done in overhead lines?

Explain Why transpositions of conductors are done in overhead lines.

 

Define regulation of power transmission line.

Regulation of power transmission line.

 

What are the different tests that are conducted on an insulator?

Different tests that are conducted on an insulator.

 

Power System-1 4th Sem Batch 2011 B.Tech PTU Nov 2016 Question Paper 

Section B :Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU NOV 2016 Question Paper              

What are the AC transmission and distribution level voltages we have in India?

AC transmission and distribution level voltages we have in India.

 

Why the concept of self G.M.D is not applicable for capacitance?

Explain Why the concept of self G.M.D is not applicable for capacitance.

   

What are the various properties of insulators? Also briefly explain about suspension type insulators.

Various properties of insulators.

Explain about suspension type insulators.

 

Explain any two methods of grading of cables.

Two methods of grading of cables.

   

Discuss reactive power requirement of system and series compensation.

Reactive power requirement of system and series compensation.

Power System-1 4th Sem Batch 2011 B.Tech PTU Nov 2016 Question Paper Click Here

Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU nov 2016 Question Paper

Get Started

Section c :-Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU nov 2016 Question Paper              

Derive the expression for capacitance of a 1 transmission line.

Expression for capacitance of a 1 transmission line.

 

A three phase 5 km long transmission line having resistance of 0.5 , / km and inductance of 1.76 mH/km is delivering power at 0.8 pf lagging. The receiving end voltage is 32 kV. If the supply end voltage is 33 kV, 50 Hz, find line current, regulation and efficiency of the transmission line.

Three phase 5 km long transmission line having resistance of 0.5 , / km and inductance of 1.76 mH/km is delivering power at 0.8 pf lagging. The receiving end voltage is 32 kV. If the supply end voltage is 33 kV, 50 Hz, find line current, regulation and efficiency of the transmission line.

 

A transmission line conductor at a river crossing is supported from two towers at heights of 30 m and 90 m above water level. The horizontal distance between the towers is 270 m. If the tension in the conductor is 1800 kg and the conductor weighs 1.0 kg per meter. Find the clearance between the conductor and the water at a point midway between the towers? Assume parabolic configuration.

Transmission line conductor at a river crossing is supported from two towers at heights of 30 m and 90 m above water level. The horizontal distance between the towers is 270 m. If the tension in the conductor is 1800 kg and the conductor weighs 1.0 kg per meter. Find the clearance between the conductor and the water at a point midway between the towers? Assume parabolic configuration.

Power System-1 4th Sem Batch 2011 B.Tech PTU Nov 2016 Question Paper 
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