方形电压波形对变压器绝缘击穿电压的影响

2011 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2011-10-01 DOI:10.1109/CEIDP.2011.6232593

T. Koltunowicz, A. Cavallini, D. Djairam, G. Montanari, J. Smit

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引用次数: 18

摘要

电压源变换器(VSCs)在高压直流输电中的使用，更普遍的是在灵活的交流输电系统(FACTS)中，引起了对电网/变换器接口变压器匝/匝绝缘耐久性的关注。本文讨论了油浸纸试样的试验情况。结果表明，较短的上升时间和较高的重复频率对局部放电起始电压和击穿电压都有较大的影响。这些结果表明，深入调查可能是重要的，以了解这些绝缘系统的长期行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The influence of square voltage waveforms on transformer insulation break down voltage

The use of Voltage Source Converters (VSCs) in HVDC transmission and, more generally, in flexible AC transmission systems (FACTS), raises concerns over the endurance of turn/turn insulation of grid/converter interface transformers. In this paper, tests performed on oil-impregnated paper specimens are discussed. The results indicate clearly that shorter rise times and higher repetition frequencies have a strong impact on both partial discharge inception voltage and breakdown voltage. These results suggest that deeper investigation might be important to understand the long term behavior of these insulation systems.

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2011 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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