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.
For Oil Distribution and Dry-type transformers (≤ 3150 kVA): 
- PEI corresponds to:
- the maximum efficiency of the transformer
- Ratio between the no load losses and losses
The values given are Maximal value; no more tolerances on design considered:
- Losses levels to be applied (reference of MV ≤ 24 kV and LV ≤ 1.1 kV).
- ODT and CRT not covered by reference transformers (additional losses allowed compared to standard losses ranges):
- Medium power and power transformers: Level of Peak Efficiency (Mix of load losses and no load losses) for transformers > 3150 kVA (limited to 10 MVA 36 kV for Dry-type Transformers)
- PEI corresponds to:
- the maximum efficiency of the transformer
- Ratio between the no load losses and losses
The values given are Maximal value; no more tolerances on design considered:
Released for: Schneider Electric Egypt and North East Africa
