System for preventing rupture of transformer tank

Details System for preventing rupture of transformer tank System for preventing rupture of transformer tank

2011-03-08

2011-03-08

Mai, Anh T (Department: 2832)

Inductor devices

With temperature modifier

C336S057000, C336S058000, C336S059000

Reexamination Certificate

active

07902950

ABSTRACT:
Disclosed herein is a rupture prevention system, which increases a limit of the deformation of a transformer tank, thus primarily preventing a sudden rise in pressure, and which increases the number of rupture disc per unit area, thus preventing the rupture of the tank wherever the arc is generated in tank. The system includes a support part installed in the transformer tank and supporting a shielding plate so that it is not directly attached to the transformer tank. A plurality of rupture discs is mounted to pipes extending outwards from the transformer tank, and is ruptured when pressure in the transformer tank reaches a predetermined pressure level. A plurality of relief tanks is vertically installed at a position neighboring the transformer, and is coupled to the pipes. Further, an oil gauge is mounted at a lower position in each of the relief tanks, and generates a signal when the insulating oil flows into the relief tank.

REFERENCES:
patent: 2923905 (1960-02-01), Weiderkehr
patent: 5046354 (1991-09-01), Mungia et al.
patent: 5391835 (1995-02-01), Yao et al.
patent: 5508672 (1996-04-01), Sokai
patent: 6804092 (2004-10-01), Magnier
patent: 7317598 (2008-01-01), Magnier
patent: 60113912 (1985-06-01), None
patent: WO 00/57438 (2000-09-01), None
English abstract translation for JP 60113912 A.

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