Patent ID: 7902950
Filing Date: 2011-03-08
Classification: H01F

Abstract:
1. A system for preventing a rupture of a transformer tank, which is provided on a transformer and prevents a rupture of the transformer tank due to a sudden rise in pressure in the transformer, the system comprising: a support part installed in the transformer tank, and supporting a shielding plate for absorbing a magnetic field so that the shielding plate is not directly attached to the transformer tank; a plurality of rupture discs mounted, respectively, to a plurality of pipes extending outwards from the transformer tank, and ruptured when pressure in the transformer tank reaches a predetermined pressure level, thus opening passages; a plurality of relief tanks vertically installed at a position neighboring the transformer, and coupled to the pipes, thus providing space for storing insulating oil; and an oil gauge mounted at a lower position in each of the relief tanks, and generating a signal when the insulating oil flows into the relief tank, thus informing a manager of rupture of each of the rupture discs and discharge of the insulating oil.