Results 41 to 50 of about 193,804 (193)
Busbar Fault Direction Identification Using Sequences of Displacement Vectors
In this paper, a novel busbar fault direction identification scheme is presented. The proposed scheme is based on sequences of displacement vectors. The proposed algorithm is fast and simple enough to be embedded in a differential relay to assist the percentage‐restraint differential algorithm.
Mostafa Sarlak
wiley +1 more source
Algoritmos para localización de fallas en líneas de transmisión, análisis para el caso colombiano
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
doaj
Lightning Performance Evaluation of Italian 150 kV Sub-Transmission Lines
A significant majority of overhead transmission lines’ (OHLs) outages is due to backflashovers caused by direct lightning strikes: the realistic assessment of the lightning performance is thus an important task.
Fabio Massimo Gatta +4 more
doaj +1 more source
Simulation analysis of inrush current in no load closing of transformer in Hydropower Station
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
doaj +1 more source
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
wiley +1 more source
基于ATP-EMTP仿真软件的输电线路雷击跳闸率多因素对比分析研究
通过电磁暂态仿真程序ATP-EMTP,建立了110 kV输电线路的雷击分析模型,主要包括:雷电流模型、杆塔模型、绝缘子串闪络模型等,该模型可以真实地反映雷电流在杆塔上的传播过程。然后分别利用规程法和ATP仿真法进行了计算与分析,得到线路在不同条件下的跳闸率;分析了杆塔高度、冲击接地电阻以及线路绝缘水平等因素对雷击跳闸率的影响。结果表明:在同等情况下,ATP-EMTP仿真计算的反击跳闸率略高于规程法的计算值;随着杆塔高度的降低、杆塔冲击接地电阻的减小、绝缘强度的增强,反击跳闸率减小。
肖安南 +6 more
doaj
An ATP-EMTP-Based Model for Analysis of Shielding Properties of Ferromagnetic Cable Sheaths
Ferromagnetic materials, such as steel, are used for shielding of power and telecommunication cables. These shields often provide path for currents during faults or lightning and are important for the integrity and safety of electrical systems and devices.
Popov, M. (author) +3 more
openaire +4 more sources
Implementation of the prime and G3-PLC physical layers in the EMTP-ATP
This paper describes the development of EMTP-ATP models of the emerging Prime and G3-PLC power line communication standards. The transmitters, consisting of a highly configurable orthogonal frequency division multiplexing MODEM, are built in the native ...
Robson, Stephen +2 more
core +1 more source
ANALYSIS OF GENERATOR TRANSIENT STABILITY USING THE ATP-EMTP PROGRAM PACKAGE
U ovom završnom radu analizirana je tranzijentna stabilnost generatora prilikom kratkotrajnog prekida interkonekcije s ostatkom mreže upotrebom programskog paketa ATP-EMTP.
Barać, Ante
core +3 more sources
Use of the EMTP-ATP Software to Develop a Dynamic Model of the Technological Centre
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
doaj +1 more source

