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1. 发明公开

EP3151256A1 ROLLED IRON CORE TRACTION TRANSFORMER 有权转让
标题翻译： TRAKTIONSTRANSFORMATOR MIT GEWALZTEM EISENKERN
公开(公告)号：EP3151256A1
公开(公告)日：2017-04-05
申请号：EP15798885.8
申请日：2015-04-20
申请人： China Railway Corporation , Southwest Jiaotong University , Changzhou Pacific Electric Power Equipment Group Co. Ltd.
发明人： GAO, Shibin , WANG, Baoguo , WU, Zhiqiang , GAO, Mindong
IPC分类号： H01F29/00
CPC分类号： H01F37/005 , H01F17/02 , H01F27/08 , H01F27/29 , H01F29/00
摘要： A rolled iron core traction transformer, comprising an iron core (1); the iron core (1) is formed by splicing two symmetrical annealed iron-core closed single frame (1-1) ; each iron-core closed single frame (1-1) is formed by sequentially coiling continuous silicon steel sheets; the iron-core closed single frame (1-1) has two iron-core column single bodies (1-1-1),which having approximately semicircular cross sections; the iron core (1) has two iron-core columns (1-2), which have approximately circular cross section, thereon formed by splicing two iron-core column single bodies (1-1-1) ; each iron-core column (1-2) is sequentially provided with a low-voltage T winding (6), a low voltage F winding (5) and a high-voltage winding (4) thereon from inside to outside; two sides of each high-voltage winding (4) are respectively provided with a first tapping area and a second tapping area, the first tapping area is provided with low-voltage side high-voltage tapping outgoing lines (16), the second tapping area is provided with high-voltage side high-voltage tapping outgoing lines (18), two low-voltage side high-voltage tapping outgoing lines (16) are connected together with a no-load voltage regulation switch (9), and two high-voltage side high-voltage tapping outgoing lines (18) are connected together with another no-load voltage regulation switch (9).The transformer has a significant the improvement such as a reduced no-load loss, a reduced no-load current, lower noise , stronger anti-short circuitcapability, a reduced electrodynamic force generated by a sudden short circuit, and a improvement of the short circuit tolerance capability of the transformer.
摘要翻译：一种轧制铁芯牵引变压器，包括铁芯（1）; 铁芯（1）通过拼接两个对称退火的铁芯封闭单架（1-1）形成; 每个铁芯封闭单架（1-1）通过顺序卷绕连续的硅钢板形成; 铁芯封闭单架（1-1）具有两个具有近似半圆形截面的铁芯柱单体（1-1-1）; 铁芯（1）具有两个铁芯柱（1-2），其具有大致圆形横截面，其上通过拼接两个铁芯柱单体（1-1-1）而形成; 每个铁芯柱（1-2）从内向外依次设置有低压T形绕组（6），低压F绕组（5）和高压绕组（4）; 每个高压绕组（4）的两侧分别设有第一攻丝区和第二攻丝区，第一攻丝区设有低压侧高压攻丝出线（16），第二攻丝区设有高压侧高压抽头输出线（18），两个低压侧高压抽头输出线（16）与空载电压调节开关（9）连接在一起，电压侧高压抽头出线（18）与另一个空载电压调节开关（9）连接在一起，变压器具有显着的改进，如减少空载损耗，减小空载电流，降低噪声强，抗短路能力强，突然短路产生的电动力降低，以及变压器短路公差能力的提高。

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