The positive (Z1), negative (Z2) and zero (Z0) sequence impedances of a solidly grounded system under steady state condition always follow the relation
- A. Z1 > Z2 > Z0
- B. Z1 > Z2 < Z0
- C. Z1 < Z2 < Z0
- D. Z0 > Z1 > Z2
Answer: A. Z1 > Z2 > Z0
Explanation: For an unloaded synchronous generator, the sequence impedances typically follow the order Z1 > Z2 > Z0 (where Z1 includes synchronous reactance Xd, Z2 is negative-sequence reactance, and Z0 is zero-sequence leakage reactance).