Results 21 to 30 of about 99,550 (205)

A Comprehensive Assessment of Fundamental Overcurrent Relay Operation Optimization Function and Its Constraints

open access: yesEnergies, 2022
The optimization of overcurrent relays’ operation is a topic associated with protection coordination of distribution networks. Usually, this refers to medium-voltage networks, since they are protected by numerical relay devices, as opposed to low-voltage
Michele Rojnić   +3 more
doaj   +1 more source

A Fuzzy Approach for Overcurrent Relays Simulation [PDF]

open access: yes, 2003
Accurate models for Overcurrent relays (OC) with inverse time characteristics have an important role for efficient coordination of power system protection devices. This paper proposes a new method for modelling of OC relays based on fuzzy logic. The new model is more accurate than traditional models and has been validated by comparing it with the ...
Hossein Askarian Abyaneh   +2 more
openaire   +2 more sources

Application of evolutionary algorithms for optimal directional overcurrent relay coordination [PDF]

open access: yes, 2014
Includes bibliographical references.Relay coordination is necessary to ensure that while protection relays operate as fast as possible, they are also able to isolate only the faulted parts of the system from the network, ensuring that a power system ...
Stenane, Ndabeni Moses
core   +1 more source

Analysis of overcurrent protection relay settings of a commercial building [PDF]

open access: yes, 2016
This paper presents analysis of overcurrent relay settings for the selected commercial building using radial system, Library of Universiti Malaysia Pahang, Pekan Campus. The main software used is Electrical Transient and Analysis Program (ETAP) software.
Nurul Syaqirah, Mohd Sufi
core   +2 more sources

Study of Coordination on Protection Relay in High Voltage Transmission 150 kV (Payakumbuh – Koto Padang, West Sumatra)

open access: yesMATEC Web of Conferences, 2018
The disturbance of the high voltage transmission can be caused by a short circuit, overload, lightning surge, and other natural disturbances. That disturbance can lead to disruption of the distribution of electricity and damage to the electric power ...
Zulkarnaini Zulkarnaini, Rizki Muhammad
doaj   +1 more source

A Novel Reactive Current Injection (RCI) Control for Microgrid Protection with Inverter Based Distributed Generation (IBDG)

open access: yesEnergies, 2019
As the development of renewable distributed generations (DGs) is growing rapidly, the autonomous self-healing microgrid had emerged as an effective solution for integrating renewable DGs in the distribution networks.
Kheng Heong Oon   +4 more
doaj   +1 more source

Coordination of Overcurrent Relay In Distribution System

open access: yesELEKTRIKA- Journal of Electrical Engineering, 2022
The overcurrent phenomena are a dangerous condition that can be occurred in the electrical system and equipment. The condition of the overcurrent will cause the short-circuited current flows through the system and affect the other distribution line. The purpose of this study is to investigate the coordination of the overcurrent relay in different types
Rasyidah Mohamad Idris   +1 more
openaire   +1 more source

Design of an Arduino-Based Inverse Type Overcurrent Relay

open access: yesEmitor: Jurnal Teknik Elektro
An overcurrent relay is an important device in protection systems to protect electrical equipment from damage caused by excessive overcurrent. The objective of this study is to design and implement an overcurrent relay system that can detect and mitigate
rizky susilo   +2 more
doaj   +1 more source

Design and Analysis of an Over Current Relay Based on MATLAB/Simulink Environment [PDF]

open access: yesE3S Web of Conferences
The work aims to develop and comprehensively analyze an advanced overcurrent relay system for protecting power transmission networks. Overcurrent relays are critical components used either as main protection relays or as backup protection relays in the ...
Shankar Tiwari Ravi   +2 more
doaj   +1 more source

Design and Implementation of O/C relay using Microprocessor

open access: yesTikrit Journal of Engineering Sciences, 2012
This work presents the design and implementation of a versatile digital overcurrent (O/C) relay using a single microprocessor. The relay is implemented by a combination of a look-up table and a counter.
Abdul-Sattar H. Jasim   +1 more
doaj   +3 more sources

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