【Daily Topic】【Electrical Edition 20151229】
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. 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. [Production and Management Division] Seeking moderators and technical discussants to join
B: The rated speed increases, while the maximum torque decreases
For a squirrel-cage asynchronous motor, when the supply voltage remains unchanged and only the frequency is changed from 50 Hz to 60 Hz, ( B ). 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: The rated speed increases, while the maximum torque decreases
For a squirrel-cage asynchronous motor, when the supply voltage remains unchanged and only the frequency is changed from 50 Hz to 60 Hz, ( B ). 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
For a squirrel-cage asynchronous motor, when the supply voltage remains unchanged and only the frequency is changed from 50 Hz to 60 Hz, ( B ). 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
In a squirrel-cage asynchronous motor, when the supply voltage remains unchanged and only the frequency is changed from 50 Hz to 60 Hz, (B) the rated speed increases while the maximum torque decreases.
B: The rated speed increases, while the maximum torque decreases
For a squirrel-cage asynchronous motor, when the supply voltage remains unchanged and only the frequency is changed from 50 Hz to 60 Hz, ( B ). 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
A. The rated speed increases, and the maximum torque increases