A modular combined power transformer

Abstract

The invention relates to a power transformer based on the modular combination. A double-arc-shaped roll-core element of each phase of a three-phase three-dimensional roll-core comprises two straight line parts and two arc-shaped parts which are in end-to-end alternate connection, an open / closed yoke structure is arranged on each double-arc-shaped roll-core element and used for nesting a winding of the corresponding phase, and the six straight line parts of the three roll-core elements are bonded to one another respectively to form three iron columns of a three-phase three-column three-dimensional structure. An integrated low-voltage winding and a high-voltage foil winding are nested from inside to outside on each iron column, and each high-voltage foil winding consists of a group of high-voltage foil winding modules which are in series connection. The power transformer adopts the three-dimensional roll-core structure which has the novel double-arc shape and is formed by staggered open / closed yoke structures, and has the advantages of high overall stability, low noise, high operating safety, economic benefit and high reliability. Besides, the whole machine is diversified by the winding modules of fewer types, and the winding modules can be provided by different factories, are easy for on-site defect inspection and convenient for dismounting, replacing and recycling, and can meet the requirements for environmental protection and circular economy to the greatest extent.

Description

Technical field [0001] The invention relates to a new type of modularly manufactured and installed rolled iron core and foil winding power transformer, which can be used to construct a diversified transformer complete machine with fewer types of modules, and belongs to the technical field of power distribution static induction equipment. Background technique [0002] In order to meet various manufacturing requirements such as voltage, capacity, insulation, function, no-load, temperature rise, performance, life, etc., the current transformer factory is like a full workshop with a long product cycle. The transformer is like a handmade artwork. Transformer manufacturing Did not enter the industrial age. The industry is very envious of the industrialization of cables. Products can be produced through assembly lines. Therefore, people call for a variety of complete machines to be built with fewer types of modules, and these modules can be manufactured by different manufacturers, and s...

AI Technical Summary

Problems solved by technology

An object of the present invention is to provide a three-dimensional wound core structure composed of new double-arc wound core elements with staggered open / closed yoke structures, which overcomes the fact that the existing three-dimensional wound core cannot be adapted to the society Minimized production and repeated transportation defects, laying the foundation for on-site and winding assembly, and the iron core support is more stable

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