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Numerical Method for the Investigation of Fault Containment and Tank Rupture of Power Transformers

机译:电力变压器故障遏制与储罐破裂研究的数值方法

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摘要

This paper presents an analysis method based on explicit dynamic analysis, enabling detailed and representative investigations of the mechanical effects of low-impedance faults in power equipment. To illustrate the effectiveness of the proposed method, a given transformer design having caused the projection of a heavy chimney/bushing assembly over a significant distance is used as a case study. A comparison about the observed projection distance of this assembly shows that the method provides representative results, thus offering the significant advantage of replacing costly and unpractical tests. The method is then used to study the retrofit measure proposed in this case to retain the chimney, further exemplifying its power to effectively study different design and retrofitting options.
机译:本文提出了一种基于显式动态分析的分析方法,可以对电力设备中低阻抗故障的机械效应进行详细而有代表性的研究。为了说明所提出方法的有效性,以给定的变压器设计引起了沉重的烟囱/套管组件在相当大的距离上的投影为例。关于此组件的观察到的投影距离的比较表明,该方法可提供代表性的结果,因此具有取代昂贵且不切实际的测试的显着优势。然后,该方法用于研究在这种情况下建议的改造措施以保留烟囱,从而进一步证明了其有效研究不同设计和改造方案的能力。

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