Research of SF6/N2 Mixture Substitution Technology for SF6 Insulated Current Transformer

WU Jingfeng; ZHANG Lu; ZHONG Pengfeng; MEI Kaisheng; WANG Yanan; DING Weidong

doi:10.13296/j.1001-1609.hva.2018.05.035

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Research of SF₆/N₂ Mixture Substitution Technology for SF₆ Insulated Current Transformer

更新时间：2025-04-26

- Research of SF₆/N₂ Mixture Substitution Technology for SF₆ Insulated Current Transformer
- High VoltageApparatus Vol. 54, Issue 5, Pages: 223-229(2018)
- 作者机构：
  
  1. 国网陕西省电力公司电力科学研究院
  2. 南京大全电气研究院有限公司
  3. 西安交通大学电力设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.05.035
  CLC： TM452
- Published：2018
- 稿件说明：
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[1]吴经锋,张璐,仲鹏峰,梅锴盛,王亚楠,丁卫东.SF_6绝缘电流互感器SF_6/N_2混合气体替代技术研究[J].高压电器,2018,54(05):223-229.

WU Jingfeng, ZHANG Lu, ZHONG Pengfeng, et al. Research of SF₆/N₂ Mixture Substitution Technology for SF₆ Insulated Current Transformer[J]. High voltageapparatus, 2018, 54(5): 223-229.
[1]吴经锋,张璐,仲鹏峰,梅锴盛,王亚楠,丁卫东.SF_6绝缘电流互感器SF_6/N_2混合气体替代技术研究[J].高压电器,2018,54(05):223-229. DOI： 10.13296/j.1001-1609.hva.2018.05.035.

WU Jingfeng, ZHANG Lu, ZHONG Pengfeng, et al. Research of SF₆/N₂ Mixture Substitution Technology for SF₆ Insulated Current Transformer[J]. High voltageapparatus, 2018, 54(5): 223-229. DOI： 10.13296/j.1001-1609.hva.2018.05.035.

摘要

绝缘电流互感器是广泛应用的电力设备

其气体用量巨大

是SF

气体替代或减量应用的重要领域。为此

研究SF

混合气体替代技术具有重要意义。文中提出了针对SF

电流互感器进行混合气体改造的技术方案

并开展了理论分析、关键部件研制、绝缘性能试验和实际挂网运行校验

同时对该改造技术的可行性进行了探索。研究表明

两种气体混合比例（20%SF

/80%N

与30%SF

/70%N

）的电流互感器均通过了工频耐压试验和雷电冲击耐压试验

混合气体替代技术现场可行。文中研究成果对于SF

混合气体绝缘电流互感器技术发展和推广具有重要意义。

Abstract

insulated current transformer is widely used electric equipment. The total amount of gas is huge

andit is an important field of SF

gas substitution or reduction application.Therefore

it is of great significance to studythe alternative technology of SF

gas mixture. In this paper

a technical scheme for reforming SF

gas mixture isproposed

and theoretical analysis

key components development

insulation performance test and actual hangingnetwork op

eration check are carried out to explore the feasibility of the transformation technology. The researchshows that two kinds of gas mixture ratio（20% SF

/80% N

and 30% SF

/70%N

）have passed the power frequency with-stand voltage test and lightning impulse withstand voltage test. The SF

mixed gas replacement technology is feasi-ble. The results of this paper are of great significance for the development and popularization of SF

hybrid gas in-sulated current transformer.

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