Normal selection and matching of the inverter

- Aug 06, 2018 -

We should ensure that the capacity of the inverter matches. First, according to the nature of the load, the inverter type is selected correctly. The general principle is what kind of inverter with the characteristics of the load characteristics, the following mainly describes the pump and other equipment.


When selecting the inverter, the actual motor current value should be used as the basis for the inverter selection. The rated power of the motor can only be used as a reference. Secondly, it should be fully considered that the output of the inverter contains higher harmonics, which will cause the power factor and efficiency of the motor to deteriorate.


Voltage matching: The rated voltage of the inverter matches the rated voltage of the motor.


Current matching: Ordinary centrifugal pump, the rated current of the inverter matches the rated current of the motor. For special loads such as deep pumps, it is necessary to refer to the motor performance parameters to determine the inverter current and overload capability with the maximum current. The inverter current setting should be no less than 1.1 times the rated current of the motor. The maximum current is generally set to 1.5 times the rated current of the motor.


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