Results 11 to 20 of about 10,773 (195)

Development of Railway Protective Relay Simulator for Real-Time Applications

open access: yesApplied Sciences, 2019
Electric railways use a single-phase system, with the line comprising a trolley wire (TF) that supplies power to the load with a neutral wire and an autotransformer (AF) feeder to absorb the return current of the rail.
Joorak Kim, Gyu-Jung Cho, Jaewon Kim
doaj   +2 more sources

Performance analysis of static var compensators for distance protection of Nigerian 132-kV sub-transmission network using Matlab/ Simulink model

open access: yesMANAS: Journal of Engineering, 2022
In this paper, the influence of the Static Var Compensators (SVC) on distance relay protection when connected to the sub-transmission network of the Nigerian 132-kV grid system is investigated.
Akintunde Alayande   +3 more
doaj   +1 more source

Microprocessor protection devices: The present and the future [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
Paper presents the analysis of the basic constructive disadvantages of the present day microprocessor-based protective devices (MBR) and offers the basic principles for creating a new MBR that can be used in newly constructed devices.
Gurevich Vladimir
doaj   +1 more source

Design and Implementation of Multifunction Relay Based on Microcontroller

open access: yesJournal of Techniques, 2021
The power systems are exposed to many abnormal conditions, so an advanced protection system must be provided to stand up to these challenges. Protection devices evolved continuously with the development of power systems.
Ali Abdulsattar Hameed   +2 more
doaj   +1 more source

Koordinasi Proteksi Relai Arus Lebih pada Sistem Distribusi Radial Menggunakan Jaringan Syaraf Tiruan Perambatan Balik

open access: yesElektrika, 2022
To reduce damage to electrical power equipment, protective equipment is needed that is designed as well as possible, so that the protection relay can isolate faults in parts of the distribution network as fast as possible.
Andy Frediansyah   +2 more
doaj   +1 more source

Simulation of a Power Transformer Differential Protective Relay [PDF]

open access: yesEngineering and Technology Journal, 2009
The aim of this work is to simulate a differential relay, which ensures security for external fault, inrush, and overexcitation conditions and provides dependability for internal faults, to protect a single phase power transformer.
Mohammed S. Abdulraheem   +1 more
doaj   +1 more source

Research and Application of Comprehensive Algorithm of Relay Protection Status Assessment Based on Gray Correlation Analysis and TOPSIS Method

open access: yesZhongguo dianli, 2019
At present, the state evaluation for relay devices is too simple, subjective and inconvenient. To make the state evaluation of the relay devices more accurately reflect the state of targeted devices and provide more comprehensive information, a ...
Guosheng YANG   +4 more
doaj   +1 more source

A multi-agent based protection in distribution networks including distributed generations

open access: yesEnergy Reports, 2022
This paper proposes a strategy for protection coordination in distribution networks with DGs penetration. The main objective of the present work is to employ the potential of Multi-Agent Systems (MASs), which have recently been given considerable ...
E. Abbaspour   +3 more
doaj   +1 more source

Line Protection Operate Time: How Fast Shall It Be?

open access: yesIEEE Access, 2021
An ultra-high-speed protective relay has been an important topic within the scientific community, and specifically within the power industry, for decades.
Sinisa Zubic, Zoran Gajic, Davor Kralj
doaj   +1 more source

An Intelligent and Time Adaptive Model for Symmetrical and Asymmetrical Faults during Power Swing [PDF]

open access: yesمجله مدل سازی در مهندسی, 2020
The unwanted operation of the distance relay during the power swing conditions can lead to increased disturbances and exacerbate of the power grid. Therefore, the rapid and accurate detection of the power swing and blocking of the distance relay after a ...
Mostafa Sarlak, Hassan Saeedi
doaj   +1 more source

Home - About - Disclaimer - Privacy