Is there a difference between motors used with frequency converters and ordinary motors? Does adding a frequency converter to an ordinary motor turn it into a frequency-controlled motor?
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Is there a difference between motors used with frequency converters and ordinary motors? Does adding a frequency converter to an ordinary motor turn it into a frequency-controlled motor?
Domestic motors vary, while some foreign motors are the same.
A variable-frequency motor is essentially a regular motor to which an axial flow fan is added. Since the airflow generated by the motor’s fan is designed for operation at the standard frequency, the fan speed slows down when variable frequency is applied, which prevents it from effectively cooling the motor and removing heat from it. An increase in the motor’s heat can lead to premature aging and other damages to the motor’s wiring and other components. Therefore, an axial flow fan is added at the back for independent drive; adjusting the motor speed does not affect the fan’s air volume. Speed regulation requires frequency conversion for control; without a frequency converter, it is impossible to adjust the motor speed! That’s all I know about pump factories. I hope this can help you!
Relatively speaking, variable-frequency motors have higher technical specifications than ordinary motors
The insulation class of variable-frequency motors must be higher than that of ordinary motors, and their bearings are also different from those in ordinary motors; insulated bearings must be used
No, variable-frequency motors are different from ordinary motors; they are not the same
Variable-frequency motors feature an unsaturated magnetic circuit design, while conventional motors use a saturated magnetic circuit design
Variable frequency drives and variable frequency motors are not the same thing