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| 750kV GIS用环氧浇注式保护级电流互感器关键技术 | |
| 引用本文： | 龚立群,郎福成,佟贵新.750kV GIS用环氧浇注式保护级电流互感器关键技术[J].东北电力技术,2012,33(6):8-12. |
| 作者姓名： | 龚立群 郎福成 佟贵新 |
| 作者单位： | 1. 沈阳世意电器制造有限公司,辽宁 沈阳,110027 2. 辽宁省电力有限公司电力科学研究院,辽宁沈阳,110006 3. 国家大容量第一计量站,辽宁 抚顺,113112 |
| 摘 要： | 为提高750 kV GIS用环氧浇注式保护级(5P级)电流互感器(TA)伏安曲线性能的稳定性,对浇注成品进行了例行试验,得出影响750 kV GIS用环氧浇注式5P级TA绕组伏安曲线性能稳定的主要因素是铁心强度和铁心受力。通过对比分析不同包扎结构的750 kV GIS用环氧浇注式5P级TA浇注前与浇注后的伏安曲线数据变化,得出750 kV GIS用环氧浇注式5P级TA的铁心加装非导磁性金属护盒是保证其伏安曲线性能稳定的有效方法。 |
| 关 键 词： | 环氧浇注 TA 750kV GIS 非导磁 |
Key Technologies of Protection Level Current Transformer with Epoxy Cast for 750 kV GIS |
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| GONG Li-qun , LANG Fu-cheng , TONG Gui-xin.Key Technologies of Protection Level Current Transformer with Epoxy Cast for 750 kV GIS[J].Northeast Electric Power Technology,2012,33(6):8-12. | |
| Authors: | GONG Li-qun LANG Fu-cheng TONG Gui-xin |
| Affiliation: | 1.Shenyang Shiyi Electric Manufacturing CO.,Ltd.,Shenyang,Liaoning 110027,China; 2.Electric Power Research Institute of Liaoning Electric Power Co.,Ltd.,Shenyang,Liaoning 110006,China; 3.The First National High-capacity Metering station.,Fushun,Liaoning 113112,China) |
| Abstract: | In order to improve the stability of Volt-Ampere characteristic of protection level(5P class)current transformer(TA)with epoxy resin cast for 750 kV GIS,routine test is made for that.Seen from the test results the main factors influencing the stability are the iron core strength and its force.By the comparison and analysis of the test data of Volt-Ampere characteristic of TA with different wrap structures before and after casting epoxy resin,the ideal and optimal method which is used to ensure the stability of Volt-Ampere characteristic is offered.That is,the iron core with non-magnetic metallic box is an effective and ideal method to ensure its volt-ampere performance and stability. |
| Keywords: | Epoxy cast Current transformer(TA) 750 kV GIS Non-magnetic |
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