ISRO Electrical Engineering (EE) 2015 - Question 8

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What will be the base impedance for a three phase system with base MVA = 100 MVA and Base kV as 11 kV?

  • A. 1.21 Ohms
  • B. 3.6 Ohms
  • C. 5.2 Ohms
  • D. 2.78 Ohms

Answer: A. 1.21 Ohms

Explanation: Z_base = kV²/MVA = 11²/100 = 1.21 Ω.

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