Railway isolation transformer with reliable sealing

Abstract

The invention discloses a railway isolation transformer with reliable sealing, comprising a transformer shell and a shell cover, wherein the upper surface of the transformer shell is movably connectedwith the shell cover, the inner wall of the top end of the shell cover is fixedly connected with a first gasket, the inner side wall of the shell cover is fixedly connected with a second gasket, theouter walls of both side walls of the shell cover are fixedly connected with rolling bearings, the inner walls of the rolling bearings are fixedly connected with threaded cylinders, the inner walls ofthe threaded cylinders are screwed with a threaded rod, the bottom end of the threaded rod is fixedly connected with a connecting plate, and a plurality of fixing blocks are fixedly connected to theupper surface of the connecting plate. The transformer can effectively slow down the aging damage of the first gasket, avoid the oil leakage of the transformer, and ensure the normal use of the transformer. At the same time, the shell cover and the transformer shell are simply and conveniently fixed, which saves time and labor, improves the efficiency of fixing the transformer shell and the shellcover, and can also effectively solve the situation of fire spread when the transformer is on fire to effectively avoid causing greater losses.

Description

technical field [0001] The invention relates to the technical field of isolation transformers, in particular to a railway isolation transformer with reliable sealing. Background technique [0002] An isolation transformer is a transformer in which the input winding and the output winding are electrically isolated from each other to avoid the danger of accidentally touching the live body (or a metal part that may be charged due to insulation damage) and the ground at the same time. Its principle is the same as The same as the ordinary dry-type transformer, it also uses the principle of electromagnetic induction to mainly isolate the primary power supply circuit, and the secondary circuit is floating to the ground to ensure the safety of electricity use. [0003] The existing railway isolation transformer box cover and box body are sealed by a gasket and fixed by multiple bolts. The fixing process is too cumbersome and inconvenient, and the gasket is easily aged due to wind, h...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the sealing between the cover and the box body of the railway isolation transformer in the prior art is sealed by a gasket and fixed by a plurality of bolts. Aging affects the sealing of the transformer, and even leads to oil leakage of the transformer, which affects the normal use of the transformer, and a sealed and reliable railway isolation transformer is proposed

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