What is Hertz?

Definition

The SI unit of frequency equal to one cycle per second, abbreviated Hz. Motor speed is directly proportional to supply frequency in Hz, making it the primary control variable in variable frequency drives.

Related Terms

Frequency

The number of complete AC cycles per second, measured in Hertz. AC drives contro...

AC Drive

An electronic device that controls the speed and torque of an AC motor by varyin...

VFD (Variable Frequency Drive)

A power electronics device that controls AC motor speed by varying the frequency...

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