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Measurement research on magnetic properties of electrical sheet steel under different temperature, harmonic and dc bias

机译:电工钢板在不同温度,谐波和直流偏置下的磁性能测量研究

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摘要

The iron core of large power transformer is mainly composed of electrical sheet steel, which is easily affected by temperature, harmonic, and DC bias. Therefore, it is necessary to measure the magnetic properties of electrical sheet steel under different temperature, harmonic and DC Bias. This paper presents the experiment measurement system for the 30ZH120 electrical steel sheet. The B-H magnetization curve, permeability, and loss curve under different temperature, different harmonic, and different DC bias are given, respectively. The simulation of transformer is carried out by using measuring result under DC bias. The presented research provides a reference for optimizing the design of power transformer.
机译:大型电力变压器的铁芯主要由电工钢板组成,易受温度,谐波和直流偏置的影响。因此,有必要在不同温度,谐波和直流偏置下测量电工钢板的磁性能。本文介绍了30ZH120电工钢板的实验测量系统。分别给出了不同温度,不同谐波和不同直流偏置下的B-H磁化曲线,磁导率和损耗曲线。利用直流偏置下的测量结果对变压器进行仿真。本研究为优化电力变压器的设计提供了参考。

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