In a 3 phase system , when using the vigi module for earth leakage protection , the natural unbalance existing in the system will cause the tripping of the vigi module ? | Schneider Electric Egypt and North East Africa

Search FAQs

This FAQ has been written for NEAL (North East Africa and Levant) region. 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.

In a 3 phase system , when using the vigi module for earth leakage protection , the natural unbalance existing in the system will cause the tripping of the vigi module ?

The vigi module measure the vectorial sum of currents in the 3 phases + neutral , so any unbalance in the 3 phases in currents will circulate in the neutral wire and the vectorial sum will be zero , so the vigi module will not trip in case of the unbalance in load , it will trip only for earth leakage