高压电缆与气体绝缘金属封闭开关设备连接时的快速瞬变测量与仿真

2023 4th International Conference on Smart Grid Metrology (SMAGRIMET) Pub Date : 2023-04-24 DOI:10.1109/SMAGRIMET58412.2023.10128666

Katarina Musulin, B. Filipović-Grčić, V. Milardić, Mario Jurić, Robert Teči, B. Jurišić

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引用次数: 1

摘要

GIS中的瞬态机箱电压上升(TEVR)是由开关操作过程中(主要是在隔离操作过程中)机箱内发生的快速过电压引起的。TEVR是由非常高频的过电压(兆赫数量级)引起的，对于这种过电压，即使很小的接地引线电感也可以表示显着的阻抗。TEVR的水平很大程度上取决于接地引线的设计和长度。因此，本文对110 kV GIS中不同接地线配置进行了过电压测量，并给出了测量结果。在EMTP程序中首先通过仿真验证了接地引线的配置。

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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Measurements and Simulations of Very Fast Transients at the Connection of High Voltage Cable with Gas Insulated Metal Enclosed Switchgear

The transient enclosure voltage rise (TEVR) in GIS is caused by very fast overvoltages that occur inside the enclosure during the switching operation, mainly during disconnector operations. TEVR is caused by very high frequency overvoltages (the order of MHz), for which even small inductance of earthing leads can represent significant impedance. The level of TEVR strongly depends on design and length of the earthing leads. Therefore, overvoltage measurements were performed for different earthing leads configurations in 110 kV GIS and results are presented in this paper. The earthing leads configurations were first verified by simulation in the EMTP program.

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2023 4th International Conference on Smart Grid Metrology (SMAGRIMET)

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