You are currently viewing the content available in Vietnam. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
As per the catalog specification, if we select the heavy duty drive (ATV630 or ATV930) the maximum transient over current is 150%.
But it is given if you used a motor with one power rating lower. For example, if the drive is a 15kW, to have 150% of over current, the motor used is maximum an 11kW (for standard power rating asynchronous motor). Otherwise, if you need for a 15kW motor, over current of 150% you have to used an 18.5kW drive (Pn+1).
In the case of 200% of over current, the principal is similar. I made an example in the excel file in attachment ("example drive selection.xlsx") and in that case drive have to be taken twice the power of the motor (Pn+2).
But it is given if you used a motor with one power rating lower. For example, if the drive is a 15kW, to have 150% of over current, the motor used is maximum an 11kW (for standard power rating asynchronous motor). Otherwise, if you need for a 15kW motor, over current of 150% you have to used an 18.5kW drive (Pn+1).
In the case of 200% of over current, the principal is similar. I made an example in the excel file in attachment ("example drive selection.xlsx") and in that case drive have to be taken twice the power of the motor (Pn+2).
Released for:Schneider Electric Vietnam
