Iron core, manufacturing method thereof, and transformer including iron core

Abstract

The invention discloses a high performance iron core and a manufacture method thereof, and a transformer comprising same; the iron core comprises the following composition raw materials by weight parts: iron oxide 85 parts, zinc oxide 55 parts, manganese oxide 25 parts, titanium dioxide 8 parts, silicon oxide 7 parts, glass fibre 5 parts, isocaprylic acid calcium 1-7 parts, polystyrene 6-12 parts, manganese carbonate 1-5 parts, kaolin 8-14 parts, strontium carbonate 0.5-2.5 parts, rubidium 0.1-0.5 parts, cobalt oxide 1-2.6 parts, alumina 5-9 parts, lanthana 0.8-1.2 parts, ferrous chloride 8-12 parts, cuprous bromide 2-8 parts, zirconia 0.3-0.9 parts, Triallyl isocyanurate 1-5 parts, iron chloride 3-7 parts, and samarium 0.4-0.6 parts. The method can improve various performances of the iron core and the transformer; the transformer is small in work vibrations, small in noises, greatly reduced in magnetic resistance, and exciting current can be substantially reduced; no high energy consumption zone is formed; the iron core is small in zero load loss; the transformer anti-short circuit capability can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of transformer equipment, in particular to an iron core, a manufacturing method thereof and a transformer including the iron core. Background technique [0002] At present, energy saving is an essential national policy for my country to build a conservation-oriented society. Due to its remarkable energy-saving and environmental protection performance, amorphous alloy transformers have gradually been accepted by the majority of users and become an ideal new generation of distribution transformers. [0003] Most transformers have a fixed iron core on which primary and secondary coils are wound. The iron core of the transformer is a component made of soft magnetic material with high initial magnetic permeability, low loss and stable magnetic properties. The transformer iron core plays an important role in the transformer and is the core component of the transformer component. [0004] As typical soft magnetic ...

AI Technical Summary

Problems solved by technology

[0005] Although the characteristics of the existing transformer cores have been improved in all aspects, they still need to be improved and developed, and there are the following deficiencies: for example, the stacking of cores is easy to generate additional noise, the reluctance is large when the three-phase power supply is used, and the excitation current increases significantly. High, there is a high energy consumption area, and the loss caused by the air gap formed at the joint is large; the short-circuit resistance of the transformer needs to be improved, etc.