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.
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
