Molecular Simulation Studies on Aging Mechanism in Crazing Zone of the Insulation Paper in Power Transformers 基于分子模拟的变压器绝缘纸无定型区老化微观机理研究
Molecular Dynamics Simulation for Influence of Water on Power Transformer Insulation Paper 水分对变压器绝缘纸性能影响的分子动力学模拟
The utility model provided with an insulation paper inserter has the advantage of feeding paper to various groove stator iron cores at the same time. 本实用新型具有一台绝缘纸插入机可以同时为多种槽型的定子铁芯送纸的优点。
Molecular Simulation for Thermal Degradative Micromechanism of Power Transformer Insulation Paper 变压器绝缘纸热老化降解微观机理的分子模拟研究
Recent developments In thermal Insulation paper 发展中的耐温隔热纸
Through testing on leak electricity sensor and insulation monitoring module, the paper summarizes experience, finds out problems and brings up solutions to temperature excursion and zero excursion in leak electricity sensor, as well as solutions to fault diagnosis in leak electricity sensor itself. 通过对漏电流传感器的测试及绝缘检测模块测试,总结经验,发现问题,提出了漏电流传感器温漂和零漂的解决方案,同时提出了漏电电流传感器自身故障检测的解决方案。
Study on insulation paper band for transformer 变压器用绝缘纸胶带的研制
Application of NOMEX Insulation Paper in Traction Transformer NOMEX绝缘纸在牵引变压器中的应用
The author studied how to integrate small hollow block with high energy saving insulation materials in the paper, so a new multi-function wall material was produced with load-bearing property and thermal insulation property. 本文主要讨论如何将高效节能的保温材料与小型空心砌块进行有机复合,从而达到砌块承重或填充功能与保温性能有效结合,成为一种多功能的新型墙体材料。
Based on the concept of heat dissipation exergy cost exchange factor posed by the author in paper as well as on the derived and revised formula for calculating exergy economic insulation engineering, this paper carries out the insulation engineering calculation exergy economic of steam pipe. 本文在文[4]所提及概念和推导出佣经济保温工程计算简便修正公式的基础上、进行蒸汽输热管道的佣经济保温工程计算、并与含经济保温工程计算比较。
Based on the configuration analysis of neutral point for 110 kV graded insulation transformer, this paper suggested that protective gap should not be installed at neutral point of 110 kV transformer where no power plant is available at low voltage coils. 对110kV分级绝缘变压器中性点保护间隙配置进行了分析,认为低压侧无地方电源介入的110kV变电所内的主变压器中性点不应加装棒间隙。
Based on the fact that the logarithm value of furfural mass concentration has good linear relationship with cellulose polymerization degree reflecting insulation paper aging, this paper describes the empirical formula for calculating cellulose polymerization degree. The accuracy of the formula is verified by examples. 根据糠醛的质量浓度值取对数后与代表绝缘纸老化程度的纤维素聚合度之间有较好的线性关系的情况,介绍了计算纤维素聚合度的经验公式,并列举了实例验证公式的准确程度。
Experiments on detecting DP of the insulation paper are designed. 设计了绝缘纸聚合度测试实验。
The Research on the Electrical Field Distribution in the Insulation of Impregnated Paper Insulated Direct Current Cable s 油浸纸绝缘直流电缆电场分布之研究
The test data analysis revealed: the furfuran content have a very good correlation with polymerization degree of insulation paper, and a correlation model between furfuran content and DP was founded by regression analysis. 本文试验数据逐步分析结果表明:油中糠醛含量对数值与绝缘聚合度相关性最好,与现场实际分析结果一致;通过回归分析建立了绝缘聚合度与糠醛含量对数值的关系模型。
The measurement on average degree of polymerization in insulation paper with viscometry is introduced, and some testing results are analysed. 对用粘度法测定绝缘纸的平均聚合度做了简要介绍,并对试验结果进行了分析。
In the light of the causes, occasions and possibility of the occurrence of weak current system's insulation failure, this paper introduces a easy and fast monitoring method for insulation failure. 针对弱电回路系统绝缘故障发生的原因、场合及发生机率,介绍了一种方便、快捷的绝缘故障监测方法。
In comparison, the heat insulation performance of aluminum silicate heat insulation paper was the best among the three, and magnesium carbonate heat insulation paper was the worst. 相比较之下,硅酸铝的隔热性能是三者之中最好的,其次是硅酸钙隔热纸,最后是碳酸镁隔热纸。
At last, to the reasons of the power cable Insulation fault, the paper simulates the fault of the cable joint and designs 4 typical discharge models. 最后,针对造成电力电缆绝缘故障的主要原因,本文模拟了电缆附件故障,设计并制作了4种典型的放电模型。
Different types of insulation paper will affect the measurement results of FDS, hence the using of FDS to diagnose insulating paper transformer of different types should apply relevant data for evaluation. 绝缘纸种类对FDS测量结果影响很大,建议用FDS诊断不同种类绝缘纸的变压器时,采用相对应的数据进行评估。
The results showed that with the deepening of aging, as occurred in the solid insulation paper aging is not reversible, and this aging faster and faster. 实验结果表明,随着老化的加深,作为固体绝缘的纸发生了不可逆的老化裂解,并且这种老化速度越来越快。
Finally, in order to verify the basic functions of the battery management system, the cell voltage detection, current detection, temperature detection and insulation testing respectively, this paper has structured experimental environment for functional and performance tests. 最后,为了验证所设计电池管理系统的基本功能和单体电压检测、电流检测、温度检测以及绝缘检测的系统性能,分别针对高压检测单元和电池检测单元搭建测试环境进行功能和性能测试。
According to the measurement, calculation and verification of the actual project, adopting some methods including sound absorption, sound insulation, sound attenuation and damping vibration insulation, this paper proposes some vibration insulation measures to heat pump systems. 根据对实际项目的测量、计算以及验证,采用吸声、隔声、消声、阻尼隔振等手段,对水源热泵机组的噪声控制系统进行研究。提出了水源热泵机组隔振的相关措施。
Based on the analysis of domestic and foreign signal extraction and pattern recognition in large-scale generators insulation on-line monitoring, this paper developed a set of partial discharge data acquisition and identification system based on virtual instruments. 本文在分析了国内外大型发电机绝缘在线监测信号提取与模式识别的基础上,开发出一套基于虚拟仪器的局部放电数据采集与识别系统。
Finally, in contrast with different wall materials combination of the adjacent room and diagonal room sound insulation performance, this paper analysis different combinations of the room sound insulation properties and summarize sound insulation characteristics between two rooms along with the changes of materials. 最后,分别预测不同材料墙体组合的相邻房间和对角房间的隔声性能,分析不同组合房间的隔声特性,总结材料变化引起的隔声量变化的规律和特点。
Based on analyzing related benefit entity involved in exterior wall external insulation for buildings, the paper establishes target matrix for related decision subject; by further analyzes their cost-value system; constructs life cycle cost model for exterior wall external insulation. 在对建筑外墙保温节能利益相关者分析的基础上,建立了有关决策主体的目标矩阵,并对其成本&效益进行深入分析,构建了外墙外保温生命期成本模型。
But once the transformer is operational, due to inability to obtain samples of the insulation paper, to estimate the moisture content of paper is more difficult. 但变压器一旦投入运行,因无法获取其绝缘纸的试样,要估计纸中的水分含量是比较困难的。
The finally design scheme is that using Polypropylene laminated paper ( PPLP) as the insulation material for main insulation layers and carbon paper as semiconductor materials for stress cone in HTS cable. 确定了采用以绕包结构聚丙烯层压纸(PPLP)薄膜绝缘作为高温超导电缆终端主绝缘、用碳纸作为应力锥半导体材料的设计方案。
At the same time water is dynamic distribution between the insulation paper and transformer oil, the information available but also basically a curve fitting way to give with actual measurement data, again, no precise mathematical model. 同时水分在绝缘纸和变压器油间随温度变化的动态分布,现有资料也基本上是用实际测量数据拟合曲线图的方式给出,同样没有精确的数学模型。
With the depth study of thermal fault of transformer found that the most sensitive part of transformer materials is winding insulation paper, which life affected temperature, and the ageing of insulation paper begins from the hot spot. 随着对变压器热故障的深入研究发现,变压器内部材料寿命受温度影响最敏感的部位是绕组的绝缘纸,绝缘纸的老化是从最热点开始的。