How can the input current to a Variable Speed Drive be less than the output current?

Issue:
Output Current is higher than Input Current to a Drive

Product Line:
All Variable Frequency Drives

Environment:
All Variable Frequency Drives

Cause:
Basic Electrical Theory

Resoultion:
The input current may be less than the output current because the output voltage of the drive may not be equal to the input voltage.
A drive is a power converter.  The power in (Volts x Amps) will be approximately equal the power out (Volts x Amps).
When running at less than full speed the output voltage will be lower than the input voltage, which means the output current may be higher than the input current.

Publié pour:Schneider Electric Belgium