基于电场测量的流动荷电油/压板复合绝缘系统的电荷行为

2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2003-10-19 DOI:10.1109/CEIDP.2003.1254825

M. Wakamatsu, K. Kato, H. Koide, H. Okubo

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引用次数: 5

摘要

油浸式电力变压器由于流动带电现象，可能产生静电充电。本文利用电光克尔效应直接测量了流动的带电油中电场强度的时间变化，以阐明流动的油/压板(PB)复合体系中的电荷行为。我们从电荷行为的角度对测量结果进行了讨论。最后我们发现充电过程依赖于外加场、空间电荷场和累积电荷的反场这三种不同的电场，并通过这些电场的平衡来完成。

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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Charge behavior in flowing charged oil/pressboard composite insulation system based on electric field measurement

Electrostatic charging may occur in oil immersed power transformers because of a flow electrification phenomenon. In this paper, we directly measured the time variation of electric field strength in the flowing charged oil using an electro-optic Kerr effect to clarify the charge behavior in the flowing oil/pressboard (PB) composite system. We discussed the measurement results from the viewpoint of charge behavior. Finally we found that the charging process is dependent on the three different electric fields, i.e. applied field, space charge field and counter field by accumulated charges, and is finalized by the balance of these fields.

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2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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