Power System-1 PTU Question Paper Archives

Download Previous Year PTU University Question Paper of Power System-1 BTEE-405 4th Sem Batch 2011 Onwards B.Tech PTU April 2013 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 April 2013 Question Paper

SECTION-A

Q1. Write Short Notes on :

a) State disadvantages of HVDC transmission.
b) Give the advantages of high voltage AC transmission.
c) Mention limitations of Kelvin’s law.
d) Enumerate merits of bundled conductor.
e) Define safety factor of insulator and give its significance.
f) What is skin effect ? Why is it absent in the dc system?
g) Define the terms feeder and distributor.
h) What is the importance of intersheath in cables?
i) State advantages of placing series capacitors in transmission lines.
j) What is meant by surge impedance loading?

SECTION-B

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

2. Compare the volume of conductor material required in dc single phase and three-phase ac system.
3. In a 33 kV overhead line, there are three units in the string of insulators. If the capacitance between each insulator pin and earth is 11% of self-capacitance of each insulator, find :
(a) the distribution of voltage over 3 insulators
(b) string efficiency.
4. A single phase transmission line has two parallel conductors 3 m apart, the radius of each conductor being 1 cm. Calculate the loop inductance per km length of the line if the material of the conductor is :
(a) copper
(b) steel with relative permeability of 100.
5. Show how regulation and transmission efficiency are determined for medium lines using nominal T method. Illustrate your answer with suitable vector diagram.
6. Derive an expression for the insulation resistance of a single-core cable.

SECTION-C

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

7. (a) What is the percentage saving in feeder copper if the line voltage in a 2-wire dc system is raised from 200 volts to 400 volts for the same power transmitted over the same distance and having the same power loss?
(b) Show that in a string of suspension insulators, the disc nearest to the conductor has the highest voltage across it. (6,4)
8. (a) Describe the Receiving end circle diagram for long transmission lines based on ABCD constants.
(b) Discuss the effect of earth on capacitance of conductors. (6,4)
9. Write short notes on any two of the followings :
(a) Synchronous phase modifiers
(b) Kelvin’s law
(c) Compensation of transmission lines. (2×5)

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 April 2013 Question Paper

State disadvantages of HVDC transmission.

Surge impedance loading.

Power System-1 4th Sem Batch 2011 B.Tech PTU April 2013 Question Paper

Section B :Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU April 2013 Question Paper

Compare the volume of conductor material required in dc single phase and three-phase ac system.

In a 33 kV overhead line, there are three units in the string of insulators. If the capacitance between each insulator pin and earth is 11% of self-capacitance of each insulator, find : (a) the distribution of voltage over 3 insulators (b) string efficiency.

A 33 kV overhead line, there are three units in the string of insulators. If the capacitance between each insulator pin and earth is 11% of self-capacitance of each insulator, find :
(a) the distribution of voltage over 3 insulators
(b) string efficiency.

A single phase transmission line has two parallel conductors 3 m apart, the radius of each conductor being 1 cm. Calculate the loop inductance per km length of the line if the material of the conductor is : (a) copper (b) steel with relative permeability of 100.

Single phase transmission line has two parallel conductors 3 m apart, the radius of each conductor being 1 cm. Calculate the loop inductance per km length of the line if the material of the conductor is :
(a) copper
(b) steel with relative permeability of 100.

Show how regulation and transmission efficiency are determined for medium lines using nominal T method. Illustrate your answer with suitable vector diagram.

Show how regulation and transmission efficiency are determined for medium lines using nominal T method.

Derive an expression for the insulation resistance of a single-core cable.

Expression for the insulation resistance of a single-core cable.

Power System-1 4th Sem Batch 2011 B.Tech PTU April 2013 Question Paper

Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU April 2013 Question Paper

Get Started https://www.youtube.com/watch?v=UHX6f8TIvX8https://www.youtube.com/watch?v=M_RR6LVICp0https://www.youtube.com/watch?v=mV41CMWonN4https://www.youtube.com/watch?v=s0LVPE0Q3LE&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=14&t=0s

Section c :-Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU April 2013 Question Paper

What is the percentage saving in feeder copper if the line voltage in a 2-wire dc system is raised from 200 volts to 400 volts for the same power transmitted over the same distance and having the same power loss?

Find percentage saving in feeder copper if the line voltage in a 2-wire dc system is raised from 200 volts to 400 volts for the same power transmitted over the same distance and having the same power loss.

Show that in a string of suspension insulators, the disc nearest to the conductor has the highest voltage across it.

Describe the Receiving end circle diagram for long transmission lines based on ABCD constants.

Explain Receiving end circle diagram for long transmission lines based on ABCD constants.

Discuss the effect of earth on capacitance of conductors.

Effect of earth on capacitance of conductors.

Write short notes on of the followings : (a) Synchronous phase modifiers

Write short notes on
(a) Synchronous phase modifiers

Write a Short Note on (b) Kelvin’s law

Short Note on (b) Kelvin’s law

Write a Short Note on (c) Compensation of transmission lines.

Short Note on (c) Compensation of transmission lines.

Power System-1 4th Sem Batch 2011 B.Tech PTU April 2013 Question Paper

MY YOUTUBE CHANNEL

JK Smart Classes Upload Lecture for Degree classes like B.TECH,M.TECH in any stream like ECE,EE,ME and Civil Engineering

JK SMART CLASSES ER.JASWINDER KUMAR

JK SMART LECTURE ER.JASWINDER KUMAR Engineering Classes Upload Lecture for Polytechnic Diploma classes in any stream like ECE,EE,ME and Civil Engineering

ENGINEERING CLASSES ER.JASWINDER KUMAR

er.jaswinder kumar Senior Lecturer

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

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

MY YOUTUBE CHANNEL

JK Smart Classes Upload Lecture for Degree classes like B.TECH,M.TECH in any stream like ECE,EE,ME and Civil Engineering

JK SMART CLASSES ER.JASWINDER KUMAR

JK SMART LECTURE ER.JASWINDER KUMAR Engineering Classes Upload Lecture for Polytechnic Diploma classes in any stream like ECE,EE,ME and Civil Engineering

ENGINEERING CLASSES ER.JASWINDER KUMAR

er.jaswinder kumar Senior Lecturer

Download Previous Year PTU University Question Paper of Power System-1 BTEE-405 4th Sem Batch 2011 Onwards B.Tech PTU April 2013 Question Paper

B.Tech. (EE-2011 Batch)

POWER SYSTEM-1

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

Time : 3 Hrs. Max. Marks : 60

Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU April 2013 Question Paper

SECTION-A

Q1. Write Short Notes on :

SECTION-B

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

SECTION-C

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

Disadvantages of HVDC transmission.

Advantages of high voltage AC transmission.

Limitations of Kelvin’s law.

Merits of bundled conductor.

Safety factor of insulator and give its significance.

Skin effect and Why is it absent in the dc system

Feeder and distributor.

Importance of intersheath in cables.

Advantages of placing series capacitors in transmission lines.

Surge impedance loading.

Power System-1 4th Sem Batch 2011 B.Tech PTU April 2013 Question Paper

Compare the volume of conductor material required in dc single phase and three-phase ac system.

A 33 kV overhead line, there are three units in the string of insulators. If the capacitance between each insulator pin and earth is 11% of self-capacitance of each insulator, find :(a) the distribution of voltage over 3 insulators(b) string efficiency.

Single phase transmission line has two parallel conductors 3 m apart, the radius of each conductor being 1 cm. Calculate the loop inductance per km length of the line if the material of the conductor is :(a) copper(b) steel with relative permeability of 100.

Show how regulation and transmission efficiency are determined for medium lines using nominal T method.

Expression for the insulation resistance of a single-core cable.

Power System-1 4th Sem Batch 2011 B.Tech PTU April 2013 Question Paper

Power System-1 4th Sem Batch 2011 Onwards B.Tech PTU April 2013 Question Paper

Find percentage saving in feeder copper if the line voltage in a 2-wire dc system is raised from 200 volts to 400 volts for the same power transmitted over the same distance and having the same power loss.

Show that in a string of suspension insulators, the disc nearest to the conductor has the highest voltage across it.

Explain Receiving end circle diagram for long transmission lines based on ABCD constants.

Effect of earth on capacitance of conductors.

Write short notes on (a) Synchronous phase modifiers

Short Note on (b) Kelvin’s law

Short Note on (c) Compensation of transmission lines.

Power System-1 4th Sem Batch 2011 B.Tech PTU April 2013 Question Paper

MY YOUTUBE CHANNEL

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

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.

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

Purpose of insulator

Materials mainly used in bus bar.

Main purpose of armouring.

Kelvin’s law.

Explain Why all overhead lines use ACSR conductors.

Inductive interference

Explain Why transpositions of conductors are done in overhead lines.

Regulation of power transmission line.

Different tests that are conducted on an insulator.

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

AC transmission and distribution level voltages we have in India.

A 33 kV overhead line, there are three units in the string of insulators. If the capacitance between each insulator pin and earth is 11% of self-capacitance of each insulator, find :
(a) the distribution of voltage over 3 insulators
(b) string efficiency.

Single phase transmission line has two parallel conductors 3 m apart, the radius of each conductor being 1 cm. Calculate the loop inductance per km length of the line if the material of the conductor is :
(a) copper
(b) steel with relative permeability of 100.

Write short notes on
(a) Synchronous phase modifiers