Voltage-regulating winding structure of splitting winding type on-load tap-changing transformer

Abstract

The invention relates to a voltage-regulating winding structure of a splitting winding type on-load tap-changing transformer, belonging to the technical field of transformers. In a technical scheme, for a winding arrangement sequence, an iron core-inner voltage-regulating winding (1), an inner low-voltage winding (2), a high-voltage winding (3), an outer low-voltage winding (4) and an outer voltage-regulating winding (5) are sequentially arranged from inside to outside, wherein the inner voltage-regulating winding and the outer voltage-regulating winding are symmetrically distributed at two sides of the high-pressure winding by taking the high-voltage winding as a center; the inner voltage-regulating winding and the outer voltage-regulating winding are sequentially and serially arranged into the tail end of the high-voltage winding stage by stage; and when the inner voltage-regulating winding and the outer voltage-regulating winding are sequentially and serially arranged into the tailend of the high-voltage winding completely stage by stage, the high voltage of the transformer is of limit tapping. In the invention, each stage of voltage regulation is unnecessary to realize by bridging the inner and outer two voltage-regulating windings, and the inner and outer voltage-regulating windings are sequentially and serially arranged into the high-voltage winding stage by stage according to odd number and even number; and the number of lead-out conductor wires of the voltage-regulating windings is reduced by half, the occupied space is effectively reduced, the wire outgoing of the voltage-regulating windings is facilitated, the manufacturing difficulty in the process is reduced, and the safe reliability in production operation is increased.

Description

technical field [0001] The invention relates to a voltage regulating winding structure of a split on-load voltage regulating transformer, which belongs to the technical field of transformers. Background technique [0002] BACKGROUND OF THE INVENTION The voltage regulating winding of a split transformer is divided into inner and outer parts. The structure of the voltage regulating winding of this type of transformer is a series or parallel structure in which each level of voltage regulation is connected to the inner and outer voltage regulating windings. The problem is: The large number of wires is not conducive to design and manufacture. Contents of the invention [0003] The purpose of the present invention is to provide a split voltage regulating winding structure of the on-load voltage regulating transformer, so that the number of leading wires of the voltage regulating winding is halved, which effectively reduces the space occupation, facilitates the outgoing line, red...

AI Technical Summary

Problems solved by technology

[0002] BACKGROUND OF THE INVENTION The voltage regulating winding of a split transformer is divided into inner and outer parts. The structure of the voltage regulating winding of this type of transformer is a series or parallel structure in which each level of voltage regulation is connected to the inner and outer voltage regulating windings. The problem is: The number of wires is large, which is not conducive to design and manufacture

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