Frequency Inverter (ac drive) to Save Energy
An ac drive is used for speed control to reduce the energy of the fan and pump.
The motive power can be reduced when the speed of the fan and pump is reduced to control the air volume and flow rate.
Example of the machine for which the frequency inverter can save energy.
Feed water pump, air conditioning pump, plant water pump, drain pump, boiler water pump, etc.
Ventilation fan, cooling tower cooling fan, air conditioning (air supply and exhaust) fan, etc.
Below the figure illustrate frequency inverter for energy saving.
The frequency inverter (ac drive) converts the alternating current into direct current once in the converter unit, then direct current is converted into the required alternating current in the inverter unit and is output. The output frequency can be changed by an external frequency command and frequency command from the panel and terminal. The motor speed is controlled by changing the frequency. The lower speed of the fan and motor decreases the required motive power, thus saving energy for operation when a frequency inverter is adopted.
