BS EN 50708-3-4:2022

Power transformers. Additional European requirements. Large power transformer. Special tests for corrugated tank and radiators | Status: Current

1 Scope This document describes a special test for tanks of liquid-immersed transformers which during service are hermetically sealed and fully filled with liquid and volume change of the liquid due to temperature change compensated by elastic deformation of the cooling element for Large Power Transformers having a rated power greater than 3150 kVA.