Xd, X’d and X”d are steady-state d-axis synchronous reactance, transient d-axis reactance and subtransient d-axis reactance of a synchronous machine respectively. Which of the following statements is true?
A. Xd > X’d > X”d
B. X”d > X’d > Xd
C. X’d > X”d > Xd
D. Xd > X”d > X’d [GATE E.E. 2001]
Answer:B
Xd, X’d and X”d are steady-state d-axis synchronous reactance, transient d-axis reactance and subtransient d-axis reactance of a synchronous machine respectively. Which of the following statements is true?
A. Xd > X’d > X”d B. X”d > X’d > Xd C. X’d > X”d > Xd D. Xd > X”d > X’d [GATE E.E. 2001]