Results 31 to 40 of about 573 (163)
Simulation analysis of inrush current in no load closing of transformer in Hydropower Station
Energy Reports, 2021 When the transformer is switched on without load, the magnetizing inrush current will be caused due to the saturation of the iron core, which may lead to the misoperation of the relay protection device, cause overvoltage and damage the insulation of the ...
Ren Hongtao
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Energy Science &Engineering, Volume 14, Issue 1, Page 377-398, January 2026.Standard and proposed non‐standard OCR characteristics. ABSTRACT This study introduces an advanced adaptive protection approach for AC power systems, designed to address key limitations in current clustering‐based relay coordination methods. Using K‐means, hierarchical, and spectral clustering techniques, the proposed scheme classifies grid operating ...
Feras Alasali +6 more
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Algoritmos para localización de fallas en líneas de transmisión, análisis para el caso colombiano
Dyna, 2004 Se analizan cuatro algoritmos localizadores de fallas en líneas de transmisión, aplicados en el sistema de transmisión nacional colombiano. Se determina cual es más preciso y eficiente. Finalmente, se verifican por medio de simulaciones en EMTP/ATP, y
Gina M. Idárraga Ospina +2 more
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Use of the EMTP-ATP Software to Develop a Dynamic Model of the Technological Centre
Advances in Electrical and Electronic Engineering, 2016 This paper deals with analysis of power generating units installed within the technological centre. To be able to analyse behaviour of such a complex system with accumulation, the dynamic model of the technology was created using the EMTP-ATP software ...
Tomas Mozdren +3 more
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IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.This paper primarily investigates the patterns of overvoltage changes during an interruption of oil‐immersed iron‐core reactors by circuit breakers and their distribution along the axial windings of the reactor, which optimises the winding structure. ABSTRACT This paper primarily investigates the patterns of overvoltage changes during an interruption ...
Hongyan Nie +4 more
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Dianci bileiqi, 2008 简述了电力系统过电压问题的研究方法:TNA具有直观性,实测具有真实性,仿真计算具有灵活性。为研究某超高压变电站雷电过电压与绝缘配合问题,用低压冲击波进行了时间比例尺、阻抗比例尺均为1的现场试验,且用ATP-EMTP仿真计算了设备上的雷电侵入波过电压。试验结果表明,一线一变、一线两变两种运行方式下,降压实测与ATP-EMTP仿真计算结果基本一致,说明将实测与计算结合起来是一种分析此类问题很好的方法。
陈敏 +7 more
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Analytical Frameworks and Theories of Electric Power in Non‐Linear Circuits
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.Based on the challenges of distorted currents and non‐linear components in modern power grids, this article reviews seminal electrical power theories that seek to generalize the traditional definitions of active, reactive, and apparent power. It provides a detailed analysis of their mathematical foundations, practical implementation, and validity.
Rafael Escudero, Luis Ibarra
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Revista Técnica Energía, 2017 En este trabajo, basados en el estado del arte, se presentan los criterios usados para la modelación y validación de los cables tripolares subterráneo y submarino del sistema de subtransmisión Baltra– Santa Cruz. Para modelar los cables en rutinas Cable
L. Dután
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IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.This article presents a practical parameter‐extraction method for a lumped‐element three‐phase transformer model based on primary‐current data from a finite‐element simulation. In particular, the no‐load and short‐circuit cases are used to extract the leakage parameters, also capturing load cases.
Alexander Sauseng +3 more
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MODELO DE TRANSFORMADORES EN SATURACIÓN UTILIZANDO FUNCIONES DE CÁLCULO DE PARÁMETROS EN EMTP-RV
Ingeniería, 2014 La representación del fenómeno de saturación de un transformador es imprescindible en los estudios de transitorios electromagnéticos, principalmente porque debe representar con exactitud la sobrexcitación del transformador durante su energización, además
Leonardo Montealegre Lobo
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