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Question:

5.5 kW 4-pole motor with the fastest speed can exceed the rated speed?

5.5 kW 4-pole motor with the fastest speed can exceed the rated speed?

Answer:

Because the frequency converter can reach 60 Hz frequency, while the three-phase power supply is the standard 50 Hz. So the inverter can make the motor speed faster than the rated 1500 rpm. The fastest up to about 1800 turn.
Can not be exceeded Although the inverter can run out of the motor rated speed as the motor will soon burn You want your running speed of 2m / s you have to run 5m / s so go eggs do not pull the
The speed of the AC motor is related to the frequency of the power supply. Frequency AC frequency of 50hz, asynchronous motor rated speed of about 1440 r / min, increase the frequency of course can improve the speed, naturally can exceed the rated speed, provided that the motor load to be reduced. If you need to improve more, need to replace the inverter motor, improve the motor heat dissipation characteristics.

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