10kV空气绝缘开关设备金属突起局部放电特性气体的研究

IF 1.4 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Qipeng Tan, Bin Song, Linong Wang, Shaocheng Wu
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引用次数: 0

摘要

空气绝缘开关设备在配电网中占有重要地位,局部放电是其运行中常见的故障之一。检测化学气体产物的气体成分分析方法是发现PD的一种新方法。为了研究该方法的可行性,对金属突起PD的特征气体(包括一氧化碳(CO)、二氧化氮(NO2)和臭氧(O3))进行了监测实验。本文对影响局部放电的三个主要因素:电压、空气湿度和突出程度进行了比较实验,并研究了它们如何影响特征气体的形成。根据实验结果,在相同的条件下,更高的施加电压促进了特征气体的形成。此外,随着湿度从40%增加到75%,气体的产生受到抑制。此外,当针板距离为30mm时,气体浓度在6h内几乎没有变化,这与10mm不同。总之,气体浓度的差异揭示了三个主要因素对特征气体产生的影响,并为通过气体成分分析进行PD检测提供了分析依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Study on characteristics gases of metal protrusions partial discharge in 10-kV air-insulated switchgear

Study on characteristics gases of metal protrusions partial discharge in 10-kV air-insulated switchgear

Air-insulated switchgear plays an important role in distribution network and partial discharge (PD) is one of the common faults in its operation. The method of gas component analysis, which is to detect chemical gas products, is a novel one to discover PD. In order to study the feasibility of the method, the monitoring experiment of characteristic gases, comprising carbon monoxide (CO), nitrogen dioxide (NO2), and ozone (O3), of metal protrusion PD is carried out. This paper conducts the comparative experiments on three main factors affecting PD: voltage, air humidity and degree of protrusion, as well as studies how they affect the formation of characteristic gases. According to the experimental result, higher applied voltage promotes the formation of characteristic gases in the same conditions. In addition, with the increase of humidity from 40% to 75%, the generation of gases is inhibited. Furthermore, when the needle–plate distance is 30 mm, the gas concentration has almost no change within 6 h, which is different from that of 10 mm. In conclusion, the difference in gases concentration reveals the influence of three main factors on the generation of characteristic gases and provides an analytical basis for PD detection by gas composition analysis.

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来源期刊
Iet Science Measurement & Technology
Iet Science Measurement & Technology 工程技术-工程:电子与电气
CiteScore
4.30
自引率
7.10%
发文量
41
审稿时长
7.5 months
期刊介绍: IET Science, Measurement & Technology publishes papers in science, engineering and technology underpinning electronic and electrical engineering, nanotechnology and medical instrumentation.The emphasis of the journal is on theory, simulation methodologies and measurement techniques. The major themes of the journal are: - electromagnetism including electromagnetic theory, computational electromagnetics and EMC - properties and applications of dielectric, magnetic, magneto-optic, piezoelectric materials down to the nanometre scale - measurement and instrumentation including sensors, actuators, medical instrumentation, fundamentals of measurement including measurement standards, uncertainty, dissemination and calibration Applications are welcome for illustrative purposes but the novelty and originality should focus on the proposed new methods.
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