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.
How to size current transformers used with Sepam ?
Current transformers are sized so as not to be saturated by the current values they
are required to measure accurately (minimum 5 In).
For overcurrent protection functions
are required to measure accurately (minimum 5 In).
For overcurrent protection functions
- with DT tripping curve: the saturation current must be 1.5 times greater than the setting
- with IDMT tripping curve: the saturation current must be 1.5 times greater than the highest working value on the curve.
Released for: Schneider Electric Egypt and North East Africa
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