【Daily Question】Electrical Technology 2019-3-14
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In a squirrel-cage asynchronous motor, when the supply voltage remains unchanged and only the frequency is changed from 50 Hz to 60 Hz, … A. The rated speed increases, and the maximum torque increases. B. The rated speed increases, but the maximum torque decreases. C. The rated speed remains unchanged, while the maximum torque decreases. B
B. Rated speed increases, maximum torque decreases
B. Rated speed increases, maximum torque decreases
B. Rated speed increases, maximum torque decreases