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Oriental Motor Asia Pacific Pte. Ltd. > Q＆A > Standard AC Motor Question 8: Will large fluctuations in power supply voltage affect the motor?
Standard AC Motor: Will large fluctuations in power supply voltage affect the motor?
| Question 8: | Will large fluctuations in power supply voltage affect the motor? |
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| Answer : |
The torque produced by the motor is affected by changes in power supply voltage. The torque produced by the motor is proportional to roughly the square of the power supply voltage. For example, if the voltage of a motor rated at 230 V fluctuates between 207 V (90%) and 253 V (110%), the torque produced will vary between 80% and 120%. When using motors under large power voltage fluctuations, remember that the torque produced will vary, so select a motor that provides a sufficient margin. |
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