唐山干式变压器：唐山干式变压器铁心柱截面积确定

唐山干式变压器铁心柱截面积确定 　　
唐山干式变压器铁心截面分为铁心柱截面和铁轭截面，铁心柱截面形状与绕组截面形状互相适应。选定铁心柱截面时.应按以下原则：
①铁心柱的填充系数，即铁心柱的几何面积与其外接圆面积之比要大；
②铁心片的加工和叠装方便；
③铁心夹紧时，防止局部变形而超差。
对于现在采用的斜接缝铁轭截面，或级数与片宽与铁心柱相同，这是叠积要求所决定的。
铁心截面积形状应根据绕组结构型式而定。对于心式唐山干式变压器绕组为圆形的，为了适应圆形绕组的要求及充分利用绕组内部空间，铁心住一般制成阶梯圆柱形，各小阶梯(级)均为矩形。
在铁心柱直径一定的情况下，级数愈多，截面积愈大，但级数多，则硅钢片叠片的规格就多、制造工时多。因此，在给定铁心柱直径后.铁心柱级数、各级片宽应该多少时才能得出净截面积大。 制造工时少的佳方案.是首先应当解决的问题。讨论铁心柱直径必须与级数相联系。
当铁心柱直径一定时，很据铁心利用系数确定级数，所谓铁心利用系数.就是铁心柱截面积与其所对应的铁心柱外接圆面积之比。利用系数随硅钢片叠片系数的增大而增高。

Core of cross-sectional area

The transformer core section is divided into the core of the column section and the iron yoke cross-section, the core column cross-section shape of the winding section shape. Selected core column cross section according to the following principles:
The ① core fill factor of the column, the Core of geometric area and its circumcircle area of ??the larger;
② laminations processing and stacking convenience;
③ core clamping to prevent local deformation of ultra-poor.
For now miter joints iron yoke cross-section, or a series of wide piece with the same core column, which is determined by the stacking requirements.
The shape of the core cross-sectional area should be based on the winding structure type. For heart-type transformer winding round, in order to adapt to the requirements of the circular winding and take full advantage of the winding interior space, stepped cylindrical core live generally made ??small ladder (level) are rectangular.
Core of a certain diameter, the series more the greater the cross-sectional area, but the series, the specifications of the silicon steel laminations, manufacturing hours and more. Therefore, in o联系人：陈经理rder to obtain the net in to the fixed core Column diameter. Core of the series, at all levels-chip wide should the number of cross-sectional area. Manufacturing hours less the best solution is the first problem to be dealt. Discuss core column diameter must be contact with progression phase.
When the core column diameter is fixed, is the very core utilization factor to determine the series, the so-called core utilization factor. Core column cross-sectional area and it corresponds to the ratio of the Core of the circumcircle area. Utilization factor increased with increasing coefficient of silicon steel laminations.

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