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Power Systems

Power Systems
If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines?

 5
 6
 4
 3

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Power Systems
Find the value of a729, where "a" is the operator

 1
 0
 α
 α²

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Power Systems
Merze price current scheme protection is used in

  both A and B.
  bus bars.
  alternator.
  transformer.

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Power Systems
The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation

 (Z1 = Z2) > Z0
 Z1 = Z2 = Z0
 (Z1 = Z2) < Z0
 any of the above

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Power Systems
Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable?

 Oil CB.
 Air blast CB.
  Vacuum CB.
 Any of these.

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Power Systems
Asynchronous tie line is a

None of these
 AC transmission line
 either 1 or 2
 DC transmission line

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