Transformer iron core side column shielding forming device and method

Abstract

The embodiment of the present application provides a transformer core side column shielding forming device and method, the device includes: a side plate, a top plate, a fixing frame, a side plate moving drive assembly and a top plate moving connector fixedly connected to the fixing frame respectively; The inner end surface of the plate is fixedly connected with the moving drive assembly of the side plate, and the shape of the outer end surface of the side plate is the same as the shape of the inner wall of the target edge of the transformer core side column shielding structure, so as to form the transformer iron core side column shielding structure The edge inner wall of the top plate; the inner end surface of the top plate is fixedly connected with the moving connector of the top plate, and the shape of the outer end surface of the top plate is the same as that of the target bottom inner wall of the transformer core side column shielding structure, so as to form the The bottom inner wall of the shielding structure of the transformer core side column. The application can realize the forming of shielding devices for side columns of transformer iron cores with different sizes and specifications, has strong pertinence, can effectively improve forming precision, and can effectively improve forming efficiency.

Description

technical field [0001] The present application relates to the technical field of transformers, in particular to a shielding forming device and method for a side column of a transformer iron core. Background technique [0002] The transformer core side column shielding structure is suitable for ultra-high voltage large-capacity transformers with an outer coil voltage level of 220 kV and above. A combined shielding structure consisting of one layer of ground shielding, two layers of braces and two layers of arc-shaped shielding cardboard is installed on the surface of the core side column adjacent to the outer coil to improve the resistance between the outer coil and the core side column. Compressive strength, reduce insulation distance, reduce partial discharge and material cost of transformer. Since the side post shielding structure directly affects the coordination between the iron cores, there are strict requirements on the molding dimensions of the side post shielding. ...

AI Technical Summary

Problems solved by technology

However, with the continuous increase of transformer capacity, the diameter of the side column shielding structure is also increasing. There are obvious defects in the traditional manual processing method, because the manual forming cannot guarantee the arc shape and size requirements in the design drawings, resulting in The dimensions of the side columns are seriously inconsistent, which may easily cause safety hazards and affect product quality

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