Abstract

This article discusses a study of transformer–rectifier units with a magnetic core made of amorphous steel. Transformers with various types of amorphous alloys have been analyzed, and the optimum amorphous alloy for transformers was determined. Thermal processes in transformers with magnetic core of amorphous steel have been simulated, and the maximum temperature under normal operating conditions has been determined. The simulation has demonstrated that no special transformer cooling system is required. An experimental transformer–rectifier unit has been designed and manufactured with a magnetic core of amorphous steel installed on an 18-pulse rectifier with a capacity of 10.5 kV A operating with a frequency of 400–800 Hz and voltage of 115/27 V. To verify the obtained data, experimental studies have been performed that confirmed the validity of the selected design procedure of a transformer engineering flowchart. It has been demonstrated that the thermal loads detected in the transformer during testing are in the range of allowable values.

中文翻译：

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带有非晶钢磁芯的18脉冲变压器-整流器单元的研究

摘要

本文讨论了具有由非晶钢制成的磁芯的变压器-整流器单元的研究。分析了具有各种非晶态合金的变压器，并确定了用于变压器的最佳非晶态合金。模拟了具有非晶钢磁芯的变压器的热过程，并确定了正常工作条件下的最高温度。仿真表明，不需要特殊的变压器冷却系统。设计并制造了一个实验性的变压器-整流器单元，其非晶态钢磁芯安装在容量为10.5 kV A的18脉冲整流器上，其工作频率为400-800 Hz，电压为115/27V。验证获得的数据，已经进行了实验研究，证实了变压器工程流程图的所选设计程序的有效性。已经证明，在测试过程中在变压器中检测到的热负荷在允许值范围内。