Interphase connection assembly method of three-phase combined transformer

Abstract

The invention relates to an interphase connecting and assembling method of a three-phase combined transformer, and belongs to the field of transformer manufacturing, a stainless steel metal corrugated pipe is used as a main connecting structure among three single-phase transformers, a pipe joint is made of a low-magnetic steel material, and fixed plates which are symmetrically and oppositely arranged in pairs are welded on the inner wall of the pipe joint; an L-shaped wire clamp and plate-shaped wire clamps are mounted on the fixing plate, and a pair of buckling structures at the end parts of the plate-shaped wire clamps reliably clamp and fix a lead in the pipe joint; a pipe joint end flange and a metal corrugated pipe end flange are arranged at the joint of the pipe joint and the metal corrugated pipe respectively, fixing lugs are arranged on the peripheral edges of the pipe joint end flange and the metal corrugated pipe end flange, and a full-thread stud penetrates into one set of fixing lugs located on the same horizontal line. According to the invention, the matching problem in the in-place installation process of the transformer is reduced, the lead can be doubly fixed, and the problems of mechanical strength, electrical insulation margin and the like of an interphase connection structure are effectively solved.

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