Physics · Power Systems
The per-unit impedance Zpu in a three-phase power system is given by which of the following expressions?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11000 × (kV)B / (IB × 106)
- 21000 × (kV)B / (√3 IB)
- 3Z (Ω) × (kV)2B / (MVA)B
- 4Z (Ω) × (MVA)B / (kV)2B✓
Correct answer
Z (Ω) × (MVA)B / (kV)2B
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