Frequency Converter

Frequency Converter


A frequency converter, often known as a variable frequency drive (VFD), is a piece of electrical equipment that changes one frequency of current into another. Normally, the voltage remains constant during and after frequency conversion. Typically, frequency converters are used to control the speed of motors that power pumps and fans.

An electric device known as a frequency converter transforms current from one frequency to another. Normally, the voltage remains constant during and after frequency conversion. Typically, frequency converters are used to control the speed of motors that power pumps and fans.

This is demonstrated by the example that follows:


A 400 VAC, 50 Hz current is used to power a fan. The fan can operate at a specific speed at this frequency (50 Hz). A frequency converter is used to raise the frequency to (for instance) 70 Hz in order to make the fan run more quickly. If the fan is to run slower, the frequency can also be changed to 40 Hz.

Grundfos E-pumps contain a built-in frequency converter for variable speed control, and the Grundfos CUE is an external VFD that works with ordinary pumps in a variety of applications.

Related products:

  • CUE
  • PUMP CONTROLLERS
  • PUMPS
  • MGE, MLE
  • PUMP MOTORS

Related applications:

  • Agriculture solar solutions

  • Commercial air conditioning

  • Commercial fire protection

  •  

    Commercial wastewater

 

 

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