Basic selection of Inverter (VFD) to control Induction Motor
Let's get to know Inverter (VFD) in a simple way. What does it do?
Inverter is a device used to control or reduce the speed of a 3-phase AC motor of the magnetic induction type (Induction Motor 3Phase). The main uses are to start and stop the motor, reduce the motor speed (0-50Hz or 0-100%), adjust the left and right rotation direction of the motor (Forward -Reverse), and some models are used to control the water pressure of the water pump (AC 3 Phase) with the PID Controller system, etc. It can adjust the settings, apply to a variety of applications, connect data to control the speed and direction via PLC or other devices.
Sample picture of 3Phase Induction Motor
The initial selection of an Inverter is to look at the Name Plate of the motor or water pump to see if it accepts 3-phase electricity, what voltage is required, and how many kW of electricity it consumes.
As the sample picture, Name Plate is Induction Motor 3 phase, voltage 220V, 380V, 415V, power 0.75kW (1HP).
Sample picture of Name Plate Induction Motor 3Phase
You can see that there are 3 voltages to choose. If the work site has 3-phase power, choose the Inverter as 380V. But if the work site has single-phase power, choose the 220V model and choose the power equal to or higher than the motor, which is 0.75 kW. Now we can choose the right Inverter for us. Next time, we will talk about the benefits of various uses. See you again. Goodbye.
Our company E-Power Service is a distributor ready to provide services, take care of give advice, and recommend the use of Inverter (VFD).
XINJE VH5 series and VH6 series
SAJ VM1000B series
