Skip to content

EHV AC Transmission important questionsMost repeated in SPPU papers

These 11 questions appeared in more than one SPPU EHV AC Transmission paper we have: 3 papers, from Feb 2023 to Nov 2023. The most-asked come first. Each one links to the papers it was asked in.

All EHV AC Transmission papers and notes

Repeated questions

Endsem questions (11)

  1. 2×asked

    Define tan δ loss factor and derive an expression for insulation resistance of acable.  

    Nov 2023 ·May 2023

  2. 2×asked

    Derive expression for electrostatic induction on un energized circuit of double circuit line.

    Nov 2023 ·May 2023

  3. 2×asked

    Derive the expression for magnetic field calculation of horizontal configuration of Single circuit of three phase lines.

    Nov 2023 ·May 2023

  4. 2×asked

    Discuss effect of high electrostatic field on: i) Humans ii) Animals iii) Plants 2

    Nov 2023 ·May 2023

  5. 2×asked

    Evaluate the horizontal, vertical and total value of electrostatic field components near the single circuit transmission line, which are energized by three phase voltages.

    Nov 2023 ·May 2023

  6. 2×asked

    Explain the corona formation and methods to reduce the corona effects.

    Nov 2023 ·May 2023

  7. 2×asked

    Name the materials used for insulation in E.H.V cables; and state the properties of SF6 gas as an insulating in cables.

    Nov 2023 ·May 2023

  8. 2×asked

    State and explain at least 4 formulae for power loss due to corona.

    Nov 2023 ·May 2023

  9. 2×asked

    State and Explain at least four factors to be considered in the design of EHV lines based upon the steady state limits. Also state their limiting value.

    Nov 2023 ·May 2023

  10. 2×asked

    With the help of simple block diagram, explain the audible noise measuring circuit in EHV AC lines.

    Nov 2023 ·May 2023

  11. 2×asked

    Write note on various properties of XLPE used in EHV cables.

    Nov 2023 ·May 2023

Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.