HVDC Power Transmission MCQ

HVDC or High voltage Direct Current use direct current for bulk transmission of electric power. Unlike AC (which uses three conductors) it uses two conductors (thus requires less material).


Which of the following are pros of HVDC over AC:

  1. Absence of Capacitance
  2. Absence of inductance
  3. Absence of phase displacement
  4. All of these

Correct answer: 4. All of these

VSC Converters use:

  1. Thyristors
  2. Mercury arc valves
  3. Transistors
  4. All of these

Correct answer: 3. Transistors

Generally the Converter transformers used in VSC HVDC systems are _ as compare to LCC HVDC systems:

  1. Complex
  2. Simple
  3. Identical

Correct answer: 2. Simple

Symmetrical monopole converters are earthed with impedance:

  1. Zero
  2. Low
  3. Medium
  4. High

Correct answer: 2. Low

“Statement: Corona is violet glow, hissing noise and ozone formation phenomenon.
Assertion: DC lines have no corona”

  1. Statment is correct, assertion is wrong
  2. Statement is wrong, assertion is correct
  3. Both are correct
  4. Both are wrong

Correct answer: 1. Statment is correct, assertion is wrong

More MCQ on HVDC

  1. Which one is the most popular device used for HVDC
  2. Application of SCR Anode Cathode and Gate in HVDC Applications
  3. A 24-pulse converter unit consists of how many six-pulse bridges

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