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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
Released for:Schneider Electric Egypt and North East Africa
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