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

[smartatuls]

The measured VFD input current using power analyzer is 2-3 amps and output current shown on drive display is 10 - 12 amps. The VFD is run at full speed(50Hz).

The output current should be closed to input current at full speed.

Can you please support on this query?

[Laureano]

Hello, 

You have to specify how are you measuring the current and the characteristics of the instrument. 

Please read the following articles.

I let you some links to understand the relation between Input current vs Output current in VFD.

ATV process: ¿Porqué la intensidad de linea es inferior a la intensidad máxima de salida?

https://www.se.com/es/es/faqs/FAQ000133906/

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

https://www.se.com/us/en/faqs/FA173702/

VFD INPUT CURRENT VS OUTPUT CURRENT

https://voltage-disturbance.com/variable-frequency-drive/vfd-input-current-vs-output-current/

Cómo medir la tensión de salida de un VFD a un motor

https://www.fluke.com/es-es/informacion/blog/motores-accionamientos-bombas-compresores/como-medir-la...

Is input current of VFD smaller than output current?

https://www.variablefrequencydrive.net/is-input-current-of-vfd-smaller-than-output-current.html

VFD current: input side vs. output side

http://www.vfds.org/vfd-current-input-side-vs-output-side-911332.html#:~:text=At%20frequencies%20bel....