The power developed by a synchronous motor for constant supply voltage and constant excitation will be maximum when load angle δ is
A. 90°
B. 0°
C. slightly less than 90°.
D. slightly more than 90°.
Answer:C
The power developed by a synchronous motor for constant supply voltage and constant excitation will be maximum when load angle δ is
A. 90° B. 0° C. slightly less than 90°. D. slightly more than 90°.