SERGI's vocation is to study the prevention of explosion for all transformers and all types of rupture of insulation and its research program philosophy is to maintain a strong connection between experiments and theoretical developments. The experiments made by EDF as well as CEPEL showed the efficiency of the explosion prevention method. This one is based on the fast tank depressurization induced by the quick oil drainage out of the transformer. The oil evacuation is triggered by the direct and passive mechanical response of a depressurization set to the pressure wave. Thus during a transformer short circuit, the transformer protection is activated within milliseconds by the first dynamic pressure peak of the shock wave, avoiding transformer explosions before static pressure increases.
展开▼
