What’s The Difference Between A Variable Frequency Drive (vfd) And

1.	What’s The Difference Between A Variable Frequency Drive (vfd) And A Variable Speed Drive (vsd)?
Answer» A variable frequency DRIVE (VFD) refers to AC drives only and a variable speed drive (VSD) refers to EITHER AC Drives or DC Drives. VFD’s vary the speed of an AC motor by varying the frequency to the motor. VSD’s referring to DC MOTORS vary the speed by varying the VOLTAGE to the motor. A variable frequency drive (VFD) refers to AC drives only and a variable speed drive (VSD) refers to either AC Drives or DC Drives. VFD’s vary the speed of an AC motor by varying the frequency to the motor. VSD’s referring to DC motors vary the speed by varying the voltage to the motor.

What’s The Difference Between A Variable Frequency Drive (vfd) And A Variable Speed Drive (vsd)?

Answer»

A variable frequency DRIVE (VFD) refers to AC drives only and a variable speed drive (VSD) refers to EITHER AC Drives or DC Drives.

VFD’s vary the speed of an AC motor by varying the frequency to the motor. VSD’s referring to DC MOTORS vary the speed by varying the VOLTAGE to the motor.

A variable frequency drive (VFD) refers to AC drives only and a variable speed drive (VSD) refers to either AC Drives or DC Drives.

VFD’s vary the speed of an AC motor by varying the frequency to the motor. VSD’s referring to DC motors vary the speed by varying the voltage to the motor.

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