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.
The overall protection graph for Phase Overcurrent Protection (ANSI 50-51) is presented by multiple segments as follows:
Calculation of tripping time in terms of settings for each curve/segment can be summarized as detailed in attached file.
Calculation of tripping time in terms of settings for each curve/segment can be summarized as detailed in attached file.
Released for: Schneider Electric Egypt and North East Africa
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