Download PTU M.Tech. EE 1st Semester 70732 POWER SYSTEM QUALITY ASSESSMENT Question Paper

FirstRanker's choice FirstRanker.com

Roll No.

Total No. of Pages : 02

--- Content provided by FirstRanker.com ---

Total No. of Questions : 08

M.Tech.(Power System) (2013 & Onwards) (Sem.-1) POWER SYSTEM QUALITY ASSESSMENT

Subject Code : MTPS-103 M.Code: 70732

Time: 3 Hrs. Max. Marks : 100

INSTRUCTION TO CANDIDATES:

--- Content provided by⁠ FirstRanker.com ---

1. Attempt any FIVE questions out of EIGHT questions.
2. Each question carries TWENTY marks.

1. a) What are the major power quality issues? Explain in detail. 10
2. b) Define power quality. Explain the various types of power quality disturbances and impacts of power quality. 10

1. a) Explain the following terms related to Power quality: 10
   1. i. Voltage imbalance

   --- Content provided by​ FirstRanker.com ---

   2. ii. Under voltage
   3. iii. Over voltage
   4. iv. Frequency variation
2. b) Define waveform distortion. Explain electromagnetic compatibility in detail. 10

--- Content provided by​ FirstRanker.com ---

1. How does voltage sag affect different equipments in industries, protective switchgears and consumer electronics? Explain using various waveforms. 20

1. a) Explain the assessment of voltage and current unbalance in power system. 10
2. b) What are the various instruments used for power quality measurements? What are the factors to be considered while selecting the instruments? 10

1. a) What is fundamental frequency characterization? Explain window functions. 15
2. b) What are the different effects of harmonics on power system devices? 5

--- Content provided by‌ FirstRanker.com ---

FirstRanker.com

FirstRanker's choice FirstRanker.com

1. a) Write a short note on the following.
   1. i. Event recording 5
   2. ii. Flicker monitoring 5
   3. iii. Assessment of voltage unbalance 5

   --- Content provided by‌ FirstRanker.com ---

2. b) What are the instruments used for analyzing non sinusoidal voltage and currents. 5

1. a) Explain the following :
   1. i. Harmonic sources from commercial loads. 5
   2. ii. Harmonic sources from industrial loads. 5
   3. iii. Harmonic sources from residential loads. 5

   --- Content provided by FirstRanker.com ---

2. b) What are the various waveform distortion categories? 5

1. a) Explain the essentials of a grounded system. 10
2. b) Explain the difference between single point and multipoint grounding. 10

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

--- Content provided by‌ FirstRanker.com ---

FirstRanker.com