Results 61 to 70 of about 573 (163)
Dianci bileiqi, 2013 国内煤矿输电线路防雷技术众多,从目前使用情况看,效果不是很好。主要原因是雷电活动的随机性,加上煤矿所处环境的复杂性,很难确定雷击故障的类型,造成防雷措施针对性不够强[1]。介绍了一种基于ATP-EMTP的线路避雷器的仿真,建立的某煤矿的线路防雷模型,仿真并验证了避雷器安装原则,对合理、经济使用线路避雷器这一防雷措施具有建设性的意义。
刘建华, 姚建国, 李慧敏
doaj
Winding-to-ground fault location in power transformer windings using combination of discrete wavelet transform and back-propagation neural network. [PDF]
Sci Rep, 2022 Chiradeja P, Ngaopitakkul A.
europepmc +1 more source
Effect of Ferroresonance on Wind Turbine: Comparison of Atp/Emtp and Matlab/Simulink
Indonesian Journal of Electrical Engineering and Computer Science, 2019 Different developers have produced several software packages as solutions to model electrical power systems for the purpose of carrying out diverse analyses to solve immediate and unforeseen problems in power systems. In this study, ATP/EMTP and Matlab/Simulink packages were compared in regards to their capability to give accurate results, time of ...
Ajibola Akinrinde +2 more
openaire +2 more sources
Dianci bileiqi, 2013 对避雷器内部局部放电的定位方法进行研究,提出了一种有效的针对避雷器及其类似设备内部缺陷定位的极性定位法,并通过EMTP/ATP仿真技术及现场试验验证,验证了该方法的正确性和可行性,具有一定的工程实践意义。
邱太洪 +4 more
doaj
Complexity, 2018 A large number of electromagnetic transient studies have been analyzed for finding the overvoltage behavior of power system. A grounding grid of power system is so important for reducing the effect of overvoltage phenomena during a short-circuit event ...
Saeid Gholami Farkoush +7 more
doaj +1 more source
Characterising power quality disturbances resulting from current limiting fuse operation
Ingeniería e Investigación, 2011 This article presents novel and easily implemented tools for characterising electrical disturbances originated by fuse operations. A methodology is described that (with the use of some descriptors) led to identifying electrical disturbances of this kind.
N. Ortiz S. +3 more
doaj
Evaluation of the efficacy of transient overvoltages suppression measures in different wind farm topologies using SF6 circuit breaker. [PDF]
Sci Rep, 2023 Eliyan T, Wadie F.
europepmc +1 more source
Dianci bileiqi, 2019 配电变压器绝缘水平较低,易遭受雷电侵害,其安全性对配电系统稳定可靠运行具有十分重要的意义。基于散射参数测量法,测量并进行数据处理获得配变的阻抗幅频特性,根据谐振理论构建了宽频数学模型并引入数学算法对模型参数进行优化。通过调研某地区10kV配电线路实际运行中配电变压器的雷击损坏情况,发现了配电变压器中性点绝缘较为薄弱,现有雷电防护措施不能对其进行有效的保护这一问题。利用已建模型,通过在ATP-EMTP中对这一问题进行理论分析与仿真计算,提出了在配电变压器高压侧中性点加装避雷器 ...
汪佛池 +5 more
doaj
Research on On-Line Detection Method of Transformer Winding Deformation Based on VFTO. [PDF]
Sensors (Basel), 2021 Wang Y +7 more
europepmc +1 more source
Nonlinear modeling of magnetic materials for circuit simulations. [PDF]
Sci Rep, 2023 Kutorasiński K +3 more
europepmc +1 more source