This standard BS EN 50708-2-4:2022 Power transformers. Additional European requirements is classified in these ICS categories:
29.180 Transformers. Reactors
This document describes the special tests for Medium Power Transformers ≤ 3150 kVA compliant with the EN 50708 2 series: - for corrugated tank for liquid immersed transformers, - for the method of measurement of losses for one winding in Highest Voltage (HV) and windings in Lowest Voltage (LV) for liquid immersed and dry type transformers.