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Optical Impedance Transformer for Transparent Conducting Electrodes
Optical Impedance Transformer Transparent Conducting Electrodes
2014/8/6
A fundamental limitation of transparent conducting electrode design is thought to be the trade-off between photonic and electronic performances. The photonic transmission property of a transpare...
Modeling and calculation of electromagnetic field in the surroundings of a large power transformer
Large power transformer electromagnetic field finite element method
2010/1/11
The presented study compares measured and calculated electromagnetic field quantities in the surroundings of a large power transformer with the aim to avoid the necessity of measuring the field on sub...
广州换流站408329号换流变压器的网侧绕组更换（Replacement of the Line-side Winding for No. 408329 Converter Transformer in Guangzhou Converter Station）
换流变压器 网侧绕组 负载损耗
2009/12/31
针对利用色谱分析发现的广州站408329号换流变压器的重大缺陷，在检修时采用单一线规绕制两个网侧新线圈并进行整体替换。仿真计算表明，该方案实施后可消除环流损耗，但横向涡流损耗会稍为增加，总体负载损耗基本不变。出厂试验数据显示，各项关键性指标如局放量、温升后的色谱结果、总损耗等均接近甚至优于出厂值，表明修复工作取得了圆满成功。
新型节能配电变压器的经济性分析及选型建议（Economic Analysis and Application Advice onthe New Types of Energy-Saving Distribution Transformer ）
配电变压器 节能 应用研究
2009/12/31
S13型、S14型和非晶SBH15型变压器都是非晶合金变压器，是具有节能效果的变压器新产品。文章分析了这些变压器的损耗特性，并采用TOC法比较其技术经济性。从与S11型变压器比较的结果可知，非晶SBH15型的空载损耗最低，S13型变压器的负载损耗最低，因此，在使用这些变压器替换已有的变压器时，要根据变压器的用途和费用加以选型。
MONITORING AND DIAGNOSTICS OF POWER TRANSFORMER INSULATION
transformer insulation monitoring
2009/10/13
Liberalization of the energy market drives utilities to a more cost-effective power system. Power transformers are the most complex, important and critical components of the transition and distributio...
PCA based protection algorithm for transformer internal faults
Protection internal faults transformers
2009/7/28
In this paper a new protection scheme is introduced to detect and identify transformer winding faults.
The new approach is based on artificial neural networks (ANNs) using radial basis functions (RBF...
A Sensitive ANN Based Differential Relay for Transformer Protection with Security against CT Saturation and Tap Changer Operation
Differential protection power transformer current transformer saturation
2009/7/28
This paper presents an artificial neural network (ANN) based scheme for fault identification in power transformer protection. The proposed scheme is featured by the application of ANN to identifying s...