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Q#1
Synchronous Machines
GATE EE 2023
NAT
+2 marks
-0 marks
A three-phase synchronous motor with synchronous impedance of 
per unit per phase has a static stability limit of 2.5 per unit. The corresponding excitation voltage in per unit is _________(Round off to 2 decimal places).
Explanation:
Developed power of a Synchronous Motor,
Motor is stable if 
Steady state stability Limit
Assume Vt =1pu
Ef = 1.5811 pu
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