Physics · Electrical Machines and Power Systems
Identify the correct relation between the positive sequence impedance (Z1), negative sequence impedance (Z2), and zero sequence impedance (Z0) in a traditional three-phase transformer under steady-state conditions.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Z1 > Z0 > Z2
- 2Z0 > Z1 = Z2
- 3Z1 = Z2 and they generally differ from Z0 (typically Z1 = Z2 > Z0 or Z0 based on core type, hence standard sequence comparison shows Z1 = Z2)✓
- 4Z2 > Z1 > Z0
Correct answer
Z1 = Z2 and they generally differ from Z0 (typically Z1 = Z2 > Z0 or Z0 based on core type, hence standard sequence comparison shows Z1 = Z2)
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