TRANSFORMER Russian patent published in 2003 - IPC

FIELD: high-voltage transformers. SUBSTANCE: transformer has molded insulating case that mounts high-voltage bushings made of same material as case and fixed in position on its surface. Windings are disposed in molded case and have minimum two coils of which at least one coil is secured within molded case by means of two stiff strips inclined through certain angle to each other and rigidly fixed together. Strips are made of insulating material whose coefficient of linear expansion is same as that of molded case insulating material. High- voltage bushings are tilted through certain angle to each other and disposed asymmetrically to transformer center line; they are secured on transformer surface by means of adhesive and threaded joint. EFFECT: enhanced operating reliability. 2 dwg