This download link is referred from the post: PTU B.Tech 7th Semester Last 10 Years Previous Question Papers|| Punjab Technical University 2011-2021
Roll No.
Total No. of Questions : 18
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Total No. of Pages : 02
B.Tech. (EE) (2012 Onwards E-II) (Sem.-7)
POWER SYSTEM OPERATION AND CONTROL
Subject Code : BTEE-804A
M.Code: 71936
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Time: 3 Hrs.
Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
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SECTION-A
Answer briefly :
- What is the objective of power system control?
- List out the various needs for frequency regulation in power system.
- What happens to frequency if the load on the generator increases?
- What is meant by control area?
- Define Area Control Error.
- What are the methods of increasing response in AVR?
- Define Spinning Reserve.
- Distinguish between economic dispatch and unit commitment.
- What do you mean by priority list method?
- What is contingency analysis program?
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SECTION-B
- Describe the factors affecting security.
- Explain briefly the constraints on unit commitment problem.
- Describe Security analysis.
- Discuss the voltage stability of power system. What are the suitable effective counter measures to prevent voltage instability?
- Derive the necessary formula for active power scheduling taking into effect of transmission loss and also derive the exact and approximate expressions for penalty factor.
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SECTION-C
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- Derive the expression for transmission loss formula and state the assumptions if any to derive this formula.
- Derive the suitable mathematical formulation for voltage stability of a two bus radial systems and correlate it with the PV curve for different values of power factor and QV characteristics for different Values of P/Pmax.
- Derive coordination equation for economic dispatch including losses, in the power system. Give steps for economic dispatch calculation. Neglecting losses.
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.
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This download link is referred from the post: PTU B.Tech 7th Semester Last 10 Years Previous Question Papers|| Punjab Technical University 2011-2021