Results 81 to 90 of about 6,262 (228)

DESIGN THREE PHASE OVERCURRENT RELAYS

open access: yesTikrit Journal of Engineering Sciences, 2015
 A new design of three phase overcurrent relay described in this paper. The performance of the new design shows the ability to obtain any shape of characteristic with high accuracy and distinguish between transient and steady state fault. This design used more precise and flexible model Sachdev linear model for get any characteristic, also fast ...
Mohammed Y Suliman,, Amer M. Kado
openaire   +1 more source

Simple very high-speed overcurrent protection relay [PDF]

open access: yes, 2007
Приведено описание и представлены результаты экспериментальных исследований быстродействующего гибридного реле тока с чувствительным органом на герконе.
Gurevich, Vladimir
core   +1 more source

Evaluations on Performance of Overcurrent Protection Relay Based on Relay Operation

open access: yesInternational Journal of Electrical Engineering and Applied Sciences, 2019
Protection system plays an important role in detecting the presence disorders and may prevent damage caused interference. This can improve the reliability of the system to maintain continuity of supply to the load.
MOHD SHAHRIEEL MOHD ARAS
doaj  

Enhancing Microgrid Protection Through Adaptive Decentralized Relay Coordination: A Solution to Blinding and Sympathetic Tripping

open access: yesIEEE Access
Integrating Distributed Energy Resources into microgrids modifies the network’s system parameters and causes it to exhibit behaviour, particularly during fault conditions.
Sujatha Balasubramanian   +2 more
doaj   +1 more source

Optimisation of Overload and Overcurrent Protection to Improving Operational Efficiency of Cone Crusher Motor

open access: yesJurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems)
The mining industry occupies a pivotal position in the global economy, particularly in terms of supplying indispensable raw materials. A primary challenge confronting this industry is the imperative to preserve the reliability and operational efficiency
Muhammad Kurniawan   +3 more
doaj   +1 more source

Assessing the impact of distributed energy resources on overcurrent protection in microgrids for enhanced effectiveness

open access: yesResults in Engineering
The inevitable diminutions of fossil fuel, declined energy efficiency, and sustainability considerations have sparked concerns about centralized generating facilities in traditional grids.
Abdelfattah A. Eladl   +4 more
doaj   +1 more source

Optimal Overcurrent Relay Coordination: A Review

open access: yesProcedia Engineering, 2013
AbstractThis paper presents an overview on optimal overcurrent relay coordination in protection system and protective relays. Efforts have been made to include all methods used for the coordination of overcurrent relays. It includes techniques, such as Artificial Intelligence (AI) and Nature Inspire Algorithm (NIA) as well as other conventional methods
Hussain, M.H.   +2 more
openaire   +1 more source

OPTIMUM OVERCURRENT RELAY COORDINATION: A REVIEW

open access: yesThe Nucleus, 2014
In power system the protective relays are coordinated optimally to ensure that only the faulted zone of the system will be detached when the abnormal operating state will occur. The interconnected system as well as deregulated environment and increase in user demand force the utilities to implement optimally coordinated protection scheme to increase ...
S. A. Raza, T. Mahmood, S. B. A. Bukhari
openaire   +1 more source

A Test bed dedicated to the Study of Vulnerabilities in IEC 61850 Power Utility Automation Networks

open access: yes, 2016
International audienceIndustrial control systems rely more and more on digital technologies. Although the cyber risk such technologies induce is widely judged as serious, especially for critical infrastructures, these systems have generally not been ...
Kabir-Querrec, Maëlle   +3 more
core   +2 more sources

A novel protection relay for neutral effectively grounded distribution networks independent on sequence components

open access: yesInternational Journal of Electrical Power & Energy Systems
The neutral effectively grounded system (NEGS), increasingly adopted in medium-voltage urban AC distribution networks, exhibits heightened susceptibility to fault-induced overcurrent.
Xinjie Zeng, Xiangrui Tong, Ning Tong
doaj   +1 more source

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