SIRIO变压器技术特点

技术

Technology

要生产高频变压器，要有良好的电磁现象理论知识、对所用原材料的深入了解以及良好的生产技术经验。

Sirio所使用的技术总体上是上述知识的结合。其中一些技术使 Sirio 获得了重要成果，为 Sirio 产品带来了很高的技术价值。

在高频下工作的变压器必须满足多项技术要求，这些要求通常总结在数据表上。

To produce a high frequency transformer it is necessary to have a good theoretical knowledge of electromagnetic phenomena, an in-depth knowledge of the raw materials that are used and a good experience of the production techniques.

The technology used by Sirio is on the whole the combination of above mentioned knowledge. Some of those technologies allow Sirio to obtain important results that bring high technical value in Sirio products.

A transformer that is working in high frequency has to meet several technical requirements, that are normally summed up on the data sheet.

不同变压器的要求可能会有所不同。但有一些共同的要求：

• 绝缘材料厚度非常薄，绝缘性高；

• 产品电气特性的稳定性：所有组件必须尽可能相同；

• 元件的及时可靠性。

The requirements can change from one transformer to another. But there are some common requirements:

• high insulation in very thin thickness of the insulating material;

• the constancy of the electrical features of the products: all components have to be as much identical as possible;

• the reliability of the components in time.

以上功能是Sirio通过研发部门多年来开发的特定技术获得的。

Above features are obtained by Sirio through a specific technology developed during the years by R&D Department.

厚度极薄，绝缘性高

High Insulation in very thin thickness

高频工作的变压器有两个相反的要求：

• 绕组之间良好的耦合，以尽可能减少漏感：这意味着绕组彼此靠近；

• 同一绕组之间良好的绝缘，以实现电路的低压部分和高压部分之间的高绝缘：这意味着有必要在绕组之间引入绝缘原材料。但这意味着绕组之间的距离增加，对漏感产生负面影响。绕组之间的绝缘材料必须特别好，因为它们必须承受大幅度的电势变化，频率为每秒数千次，并且具有多年的寿命。室温也会影响绝缘材料的性能，有必要予以考虑。

A transformer that works in high frequency has two opposite requirements:

• a good coupling between the windings to reduce the leakage inductance as much as possible: this means that the windings are close each other;

• a good insulation between the same windings to enable a high insulation between the low voltage parts and high voltage parts of the circuit: this means that it is necessary to introduce insulating raw materials between the windings. But this means an increase of the distance between the windings with a negative effect on the leakage inductance. The insulating materials put between the windings have to be particularly good because they have to support changes of electric potential of big amplitude, with frequency of thousands of times per second, and with a life of many years. Also the room temperature affects the behaviour of the insulating materials, and it is necessary to take it into account.

Sirio 可以在上述两个相反的要求之间取得良好的折衷，将隔热层的厚度降低到更低水平：通过适当选择原材料和真空铸造技术可以达到这些结果。

Sirio can obtain a good compromise between the two above mentioned opposite requirements reducing the thickness of the insulation at the minimum level: it is possible to reach these results with a suitable choice of raw materials and with the under-vacuum-casting technology.

特征的稳定性

Constancy of features

在高频下，每个变压器在机械上必须与相同型号的其他变压器相同。

事实上，在放置绕组匝数时进行一些小的修改也会导致绕组之间的耦合不同。 但不同的耦合意味着变压器的不同电磁行为，并因此导致插入变压器的电子电路应用发生故障。

In high frequency each transformer has to be mechanically identical to the others of the same model.

In fact, also some little modifications in placing the winding turns bring to different coupling between the windings. But a different coupling means different electromagnetic behaviour of the transformers and a consequently malfunctioning of the electronic circuit applications where the transformers are inserted.

尽管工人的工作很好，但他无法在一个工作日内使用手动绕线机保持相同的机械精度，其中线匝的的完美位置完全取决于他的能力。

Sirio 通过用于绕线和焊接的自动生产线的重要新型机械解决了这个问题。 这些生产线保证了低于十分之一毫米的机械精度。

Although a worker is very good in his job, he cannot maintain the same mechanical accuracy a working day long with using manual winding machines, where the perfect placement of the turns depends exclusively on his capability.

Sirio solved this problem with important and new machinery for the winding and soldering automatic lines. Those lines guarantee a mechanical accuracy lower than one tenth of a millimeter.

由于自动机器是由计算机控制的，因此降低了错误的可能性（例如错误计算匝数或绝缘材料层数）。

此外，机器保证了电线与输出引脚的连接，并且还自动控制良好的焊接水平。

最后，高度自动化除了对生产质量产生积极影响外，还减少了生产时间，因此还可以降低生产成本。

Since the automatic machines are controlled by computers, the mistakes possibilities (like wrong counting of turns or insulating materials layers) are eliminated.

Furthermore, the machines guarantee a perfect connection of the wires to the output pins and a good level of the soldering is also controlled automatically.

Finally, the high automation, besides the positive influence on the production quality, reduces the production times, therefore it allows to reduce also the production costs.

及时可靠

Reliability in time

Sirio的变压器插入工业设备中，要正常工作多年。 因此，它们的使用寿命要比设备更长。

Sirio 变压器的及时可靠是通过不同因素的结合获得的：

• 使用优质原材料；

• 通过测试检查生产过程，逐步跟踪生产进度；

• 100% 生产的最终检验。

Sirio transformers are inserted into industrial equipment that have to work correctly for many years. Therefore it is necessary that they have a longer life than that of the equipment.

The reliability in time of Sirio transformers is obtained through the combination of different elements:

• use of high quality raw materials;

• checking of production processes with tests that follow the production progress step by step;

• final inspection on 100% production.

Sirio 拥有大量仪器和自动控制机械。但还有另外两个重要因素会对时间可靠性产生积极影响：

• 投影、生产、检验程序均经过认证：Sirio公司多年来已通过ISO 9001认证；

• 在变压器工作电压范围内，绝缘内部不存在局部放电。

Sirio has a large fleet of instruments and automatic machinery for control.

But there are two other important elements that influence positively the reliability in time:

• the certified procedures of projecting, production and inspection: Sirio company is certified ISO 9001 since many years;

• the absence of partial discharges inside the insulation in the working voltage range of the transformer.

随着时间的推移，局部放电会损坏绝缘层，从而导致变压器内部短路。 如何解决这个问题并找出局部放电（如果存在）？

Sirio 真空铸造技术可以消除气泡的存在，从而消除绝缘层内的局部放电。

此外，该公司还有一些可以感应局部放电的仪器，甚至可以检测皮库仑放电，电压测试可达30 kV。

The partial discharges damage the insulation over time and consequently cause short circuits inside the transformers. How to solve this problem and find out the partial discharges, if present?

The Sirio technology of vacuum casting allows to eliminate the presence of air vacuoles, and so also the partial discharges inside the insulation layers.

Furthermore the company has some instruments that can sense partial discharges, even few pico Coulomb, with voltage tests till 30 kV.

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- 文章转载自SIRIO，由爱泽工业翻译，如有侵权，请联系删除！

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