بررسی عوامل مؤثر بر اضافه ولتاژ گذرای ناشی از کلیدزنی کلید خلاء در شبکه توزیع و راهکار کاهش شدت آن [PDF]
مجله مدل سازی در مهندسیکلیدهای قدرت از هر نوعی که باشند، به عنوان یک منبع تولید اضافه ولتاژهای گذرا در سیستمهای قدرت شناخته میشوند. در این بین، کلیدهای قدرت از نوع خلاء (Vacuum Circuit Breaker-VCB) اضافه ولتاژهای شدیدتری را نسبت به دیگر انواع کلیدها تولید میکنند.
احمد مرادی +2 more
doaj +1 more source
Analysis of Magnitude and Rate-of-rise of VFTO in 550 kV GIS using EMTP-RV
Journal of Electrical Engineering and Technology, 2013 Very Fast Transients (VFT) originate mainly from disconnector switching operations in Gas Insulated Substations (GIS). In order to determine the rate-of-rise of Very Fast Transient Overvoltage (VFTO) in a 550 kV GIS, simulations are carried out using EMTP-RV.
Hun-Chul Seo +5 more
openaire +2 more sources
Desempenho da proteção diferencial em transformadores de potência perante condições especiais de operação [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia ElétricaRelés digitais vêm gradualmente substituindo os relés eletromecânicos porque são mais sensíveis, mais flexíveis e várias ...
Verney, Luiz Henrique Costa de
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Evaluating the High Frequency Behavior of the Modified Grounding Scheme in Wind Farms
Applied Sciences, 2017 Wind generators are exposed to numerous destructive forces such as lightning and are therefore vulnerable to these phenomena. To evaluate the transient behavior of a wind power plant during direct and indirect strikes, modeling of all relevant components
Seyede Fatemeh Hajeforosh +3 more
doaj +1 more source
, 2023 En el presente Trabajo de Integración Curricular se desarrolla un sistema de estudio en el software EMTP-RV en el cual se ha modelado al aislador ANSI DS-15, junto con los elementos necesarios para la simulación de la prueba de disrupción en seco a baja ...
Paguay Garcés, Diego Sebastián
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Novel Techniques to Reduce Transformer Inrush Current Using EMTP Software
مهندسی مخابرات جنوبTransformer inrush current is a high-amplitude, non-sinusoidal transient that occurs during initial energization, leading to voltage dips, power quality degradation, and relay misoperations.
Amir Ghaedi +2 more
doaj
Iranian Journal of Electrical and Electronic Engineering, 2016 The article presents the transients analysis of the substation grounding systems and transmission line tower footing resistances which can affect to the back-flashover (BF) or overvoltage across insulator chain in an HV power systems by using EMTP-RV ...
F. Amanifard, N. Ramezani
doaj
Electrical Performance of Polymer-Insulated Rail Brackets of DC Transit Subjected to Lightning Induced Overvoltage. [PDF]
Materials (Basel), 2021 Abd Rahman FA +3 more
europepmc +1 more source
Model Reduced of a Three-Phase Uninterruptible Power Unit for the EMTP-RV Software
, 2018 Actualmente la Universidad Distrital Francisco José De Caldas cuenta con un software llamado EMTP-RV, el cual permite realizar modelado y simulación de sistemas eléctricos de potencia. Teniendo en cuenta lo anterior el propósito del proyecto consistió en
Rojas Rojas, Cristian Daniel +1 more
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Transient Electromagnetic Processes Analysis in High Voltage Transmission Lines during Two-Phase Short Circuits. [PDF]
Sensors (Basel), 2022 Perzyński T, Levoniuk V, Figura R.
europepmc +1 more source