On-load voltage regulation power transformer

Abstract

The invention discloses an on-load voltage regulation power transformer which comprises a transformer body and a capacitance and voltage regulation tap switch arranged in the transformer body, whereina plurality of groups of vacuum arc extinguishing chambers are arranged in the capacitance and voltage regulation tap switch, and the adjacent vacuum arc extinguishing chambers are fixed with each other through a common static end conductive block in the middle of the vacuum arc extinguishing chambers. The vacuum arc-extinguishing chamber is composed of a static-end conductive block and two contact assemblies symmetrically arranged at the two ends of the static-end conductive block, the static-end conductive block is connected with the inner wall of the ceramic shell in a penetrating mode, amovable conductive rod is longitudinally arranged in the ceramic shell, and the movable conductive rod is perpendicularly connected with the inner wall of the static end conductive block. The outer wall of the movable conductive rod is connected with the outer wall of the static end conductive block through a static contact, the whole device achieves voltage conversion of a high-voltage side winding and series-parallel connection conversion of a low-voltage side winding, the purpose of transformer capacitance adjustment is achieved, the functions of signal collection and data processing are achieved, and operation accuracy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of power transformers, in particular to an on-load voltage regulating power transformer. Background technique [0002] In the process of power transmission, the loss of the distribution transformer is relatively large, and reducing the loss on the distribution transformer is very important to reduce the loss of the entire power grid. Due to the wide area of ​​the rural distribution network and the frequent fluctuations of the power load due to the influence of seasonal periods, the transformer cannot operate at high efficiency for a long time, and the transformer is not fully utilized. Although it is possible to install a "mother-child transformer" to solve the problem, it is unreasonable from an economical point of view. At the same time, the problem of voltage instability at the end of the line also occurs from time to time. Installing an on-load capacity-adjusting voltage-regulating transformer can effect...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the present invention provides an on-load voltage-regulating power transformer, which adopts a capacity-regulating and voltage-regulating tap-changer with a vacuum interrupter to solve the need for manual adjustment of the transformer and the internal unit of the on-load capacity-regulating and voltage-regulating transformer in the prior art. The problem of inaccurate operation caused by the large force of the steady-state permanent magnet operating mechanism

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