B.TechSemester 62022-23Power System IiKEE-601
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Power System Ii (KEE-601) - AKTU Question Paper 2022-23

B.Tech · Semester 6 · Free PDF Download

This is the official AKTU Power System Ii Previous Year Question Paper for B.Tech Semester 6, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 6
Session:2022-23
University:AKTU / UPTU

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Questions Asked in 2022-23

Power System Ii (KEE-601) — extracted question text

Section B
  • a
    reactance diagram t for load flow solution using Gauss S eidel Derive the equation for a travelling wave which tra vels over a uniform transmission Explain the low resistance and high resistance meth ods of arc extinction in a circuit
Section CAttempt any one part of the following: 10x1=1 0
  • a
    Derive an expression for a fault current when L-G fault occurs in the line and draw the sequence network showing inter-connections
  • b
    A 25 MVA ,13.2KV alternator with solidly grounded n eutral has a sub transient reactance of 0.25p.u . The negative and zero sequen ce reactance are 0.35 and 0.1 p.u respectively. A double line to ground fault occurs at the terminals of unloaded alternator derive the expression for fault curren t and compute the same , in all the phases
  • a
    Explain the three types of buses in power system. D escribe how the power flows and losses are calculated in load flow solution, with suitable derivations
  • b
    Form the elements of y bus for a below network. Admittance between nodes 1 -2 is 0.02+j0.04 , between node 2-3 is 0.0125+j0.025 , between node 1-3 is 0.01+j0.03 . Assemble the Y BUS and obtain the impedance metrix
  • a
    Derive the expression of reflection and refraction coefficient of voltage and current when a line is terminated by a resistance R
  • b
    Explain Bewlays Lattice diagram with a suitable exa mple . What information is obtained from Bewlays Lattice diagram
  • a
    Derive the swing equation for a machine connected to an infinite bus.. If a synchronous generator is of 100MVA have inertia con stant of 20MJ/MVA. Find the angular momentum
  • b
    Derive an expression for maximum power between two nodes. Show that this power is maximum when x= R3 , where X is the reactance and R is the resistance and torque angle is 60 0
  • a
    Explain the working principle of differential relay and derive its operational condition with a suitable diagram. Why restraining coil is used in differential relay ?
  • b
    Explain the arcing phenomenon in circuit breaker. D efine the terms restriking voltage and recovery voltage with a suitable diagram

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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