B.TechSemester 72022-23High Voltage EngineeringKEE073
View PDFDownload

High Voltage Engineering (KEE073) - AKTU Question Paper 2022-23

B.Tech · Semester 7 · Free PDF Download

This is the official AKTU High Voltage Engineering Previous Year Question Paper for B.Tech Semester 7, 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 7
Session:2022-23
University:AKTU / UPTU

Rate this paper

Questions Asked in 2022-23

High Voltage Engineering (KEE073) — extracted question text

Section AAttempt all questions in brief. 2 x 10 = 20
  • a
    Give the characteristic of liquid dielectrics
  • b
    Explain the time lags for breakdown
  • c
    What is the need of generating high AC and DC voltages?
  • d
    What is a resonant transformer? why it is used
  • e
    Define the front and tail times of an impulse wave
  • f
    What is a trigatron gap?
  • g
    Which factors that affect the spark over voltage of sphere gap
  • h
    Define protective devices? (i) Explain withstand voltage. (j) Define complex permittivity
Section BAttempt any three of the following: 3x10=30
  • a
    Explain the different types of s olid dielectrics materials, Gi ve their properties also
  • b
    Why a Cockcroft-Walton circuit is preferred for voltage multip lier circuits? Explain its working with a schematic diagram
  • c
    What is capacitance voltage tra nsformer? Explain with phasor d iagram how a tuned capacitance voltage t ransformer can be used for vol tage measurements in power systems
  • d
    An infinite rectangular wave on a line having a surge impedanc e of 500 Ω strikes a transmission line terminated with a capacitance of 0.004 µF. Calculate the extent to which the wave front is retarded?
  • e
    Explain three electrode arrangeme nt used in dielectric measurement? Explain with sketches the electrode arrangements for (a) solid specimen
Section CAttempt any one part of the following: 10x1=10
  • a
    What will the breakdown strengt h of air be for small gaps (1 m m) and large gaps (20 cm) under uniform field conditions and standard atmospheric conditions?
  • b
    Differentiate between breakdow n in pure liquid and commercial liquid
  • a
    A 12 stage impulse generator has 0.120 μF capacitors. The wave front and the wave tail resistances connected are 700 ohms and 6000 o hms respectively. If the load capacitor is 1200 pF, Find the front and tail times of the impulse wave produced
  • b
    Define the front and tail times of an impulse wave. What are t he tolerances allowed as per the specifications?
  • a
    Discuss the different methods of measuring high dc voltages. Wh at are the limitations in each method?
  • b
    A generating voltmeter has to be designed so that it can have a range from 20 to 200 KV DC if the indicating meter reads a minimum current of 2 µA and maximum current of 25 µA, what should the capacitance of the generating voltmeter be?
  • a
    Explain the causes for switchi ng and power frequency overvoltag e? How are they controlled in power systems?
  • b
    Write short notes on: (i) Rod gaps used as protective devices ( ii) Ground wires for protection of overhead lines
  • a
    The capacitance and loss angle o f the above specimen were measu red using the same electrode set up. The capacitance and tan δ with t h e specimen are 147 pF and 0.0012, respectively. The air capacitan ce of the electrode system was 35 pF. What is the dielectric constant a n d complex permittivity of Bakelite?
  • b
    Discuss the method of balanced detection for locating partial discharges in electrical equipment

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.

High Voltage Engineering — Other Year Papers

AKTU High Voltage Engineering PYQs from other sessions

High Voltage Engineering2024-25

More B.Tech Semester 7 (2022-23) Papers

Other subjects from same semester and session

Deep Learning2022-23Soft Wareproject Management2022-23Irrigation And Water Resource Engineering2022-23Project Management Entrepreneurship2022-23Advanced Concrete Design2022-23Introduction To Womens And Gender Studies2022-23Power System Dynamics And Control2022-23Soild Waste Management2022-23
View all B.Tech Semester 7 2022-23 papers →

Syllabus & More PYQs

Paper solve karne se pehle unit-wise syllabus dekh lo

AKTU 4th Year PYQs — All Branches