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A 3-phase synchronous motor connected to an infinite bus is operating at half-full load with normal excitation. When the load on the synchronous motor is suddenly increased | |
A. | its speed will first decrease and then become synchronous.. [Wrong Answer] |
B. | its speed will first increase and then become synchronous. [Wrong Answer] |
C. | its speed will fluctuate around synchronous speed and then become synchronous. [Correct Answer] |
D. | its speed will remain unchanged. [Wrong Answer] |