Can I use a VFD rated to input a single phase to also input a three-phase? please clarify
VFD Design
Not every single-phase VFDs are capable of handling three-phase inputs. Some are exclusively intended for single-phase use & will be affected if connected to three-phase power. Constantly verify the manufacturer’s specifications to ensure that the VFD supports three-phase input.
Voltage Compatibility
Even though the VFD supports three-phase input, ensure that the voltage rating meets the incoming three-phase supply. Using a VFD with an unsuitable voltage rating can cause damage.
Derating
Though the VFD takes three-phase input & the voltage is correct, it may need to be derated when utilized with three-phase. This means you may not be able to use the entire power capacity of the VFD. For more particular derating information, consult the manual.
On the contrary, it is not possible to utilize a Variable Frequency Drive (VFD) that is rated for single-phase input to input power that is three-phase. The features and limits of single-phase power sources are specifically taken into consideration while designing variable frequency drives (VFDs) for single-phase input conditions.
An attempt to utilize such a variable frequency drive (VFD) with three-phase electricity could potentially cause damage to the drive & could also represent a risk to the user’s safety. Using the appropriate variable frequency drive (VFD) for the particular power source that you intend to employ is of the utmost importance. You should make use of a variable frequency drive (VFD) that is specifically rated and developed for three-phase input if you want to operate a 3-phase motor.