Results 11 to 20 of about 43,414 (164)

The Evaluation of Over Current Relay and Ground Fault Relay Settings on Power Transformers

International Journal of Electrical, Energy and Power System Engineering
Power transformer is an important component of the substation and has an important role in the electric power distribution system. During operation the power transformer can’t be isolated from distribution system when abnormal conditions or faults occur.
Fikri Fatwa Ulhuda, Azriyenni Azhari Zakri, Umair Ali   +2 more
doaj   +2 more sources

Analysis of Characteristics Over Current Relay and Ground Fault Relay on Feeder Rayon Tabing [PDF]

MATEC Web of Conferences, 2018
The reliability of power distribution of PT PLN (Persero) branch of Padang especially in Rayon Tabing most of the repeaters is still not optimal. This is due to an uncoordinated protection relay on each feeder.
Arzul, Darmana Ija, Erliwati, Salvayer Adiv Rama, Yetno Tris Safri   +4 more
doaj   +2 more sources

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

E3S 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, Prakash Sharma Jai, A Kumaraswamy   +2 more
doaj   +2 more sources

Adaptive protection coordination scheme in microgrids using directional over-current relays with non-standard characteristics

Heliyon, 2021
Protection coordination of AC microgrids (MGs) is a challenging task since they can operate either in grid-connected or islanded mode which drastically modifies the fault currents.
Sergio D. Saldarriaga-Zuluaga, Jesús M. López-Lezama, Nicolás Muñoz-Galeano   +2 more
doaj   +1 more source

Over Current Relay Coordination System Considering Distributed Generation

Journal of Emerging Supply Chain, Clean Energy, and Process Engineering, 2022
Today, electricity is one of the important components to drive the industrial process and other daily human activities. While the continuity of power supply through the power system grid is impressionable from disturbances such as a short circuit. In addition, the rapid development of distributed generation (DG) technology triggers the industry to use ...
Teguh Aryo Nugroho, null Muhammad Abdillah, Helmi Fauzan, null Nita Indriani Pertiwi, Herlambang Setiadi, Awan Uji Krismanto   +5 more
openaire   +1 more source

Coordination of Over Current Relays in Distributed Generation

International Journal of Recent Technology and Engineering (IJRTE), 2019
The modern power system increases the power by adding Distributed Generation (DG). When distributed energy sources are added to the network, they effect the conventional fault levels and fault current paths and have been proved that the accurate operation of the overcurrent protection is not possible.
Mr. T. Kosaleswara Reddy, Dr. T. Devaraju, Prof. M. Vijaya Kumar, Mr. Y. Paparayudu   +3 more
openaire   +1 more source

Protection coordination of directional over current relay with distributed generation

Indonesian Journal of Electrical Engineering and Computer Science, 2022
The present <span lang="EN-US">study is focussed on a comparative analysis of different meta-heuristic optimization approaches for directional overcurrent relay (DOCRs) coordination which has been discussed and presented in the literature. Further, to have a comparative analysis of the performance of the optimization methods discussed they have ...
Tripathi, Jayant Mani, Gupta, Santosh Kumar, Ranjan, Mrinal, Kumar, Vikash, Yadav, Shivam, Chandel, Aseem, Singh, Smriti   +6 more
openaire   +1 more source

Advanced Coordination Method for Overcurrent Protection Relays Using New Hybrid and Dynamic Tripping Characteristics for Microgrid

IEEE Access, 2022
Nowadays, the Overcurrent (OC) and Earth Fault (EF) relays coordination problem is one of the most complex and challenging concerns of power protection and network operators due to the high and volatile generation capacity of renewable energy sources in ...
Feras Alasali, Abdelaziz Salah Saidi, Naser El-Naily, Sahban W. Alnaser, William Holderbaum, Saad M. Saad, Mahmoud Gamaleldin   +6 more
doaj   +1 more source

Improved Over Current Relay (OCR) Coordination Using Time Multiple Setting (TMS) [PDF]

MATEC Web of Conferences
Proper coordination between overcurrent relay (OCR) is needed to improve the reliability of the power distribution system. By choosing the proper time multiple setting (TMS), an optimum setting of OCR coordination can be achieved.
Prasetijo Hari, Fadli Ari, Renaldi Feby
doaj   +1 more source

Impedance Compensation Method Considering Unbalanced Ground Fault with SFCL in a Power Distribution System

Energies, 2022
As the energy demand increases due to the developing electric power industry, the fault current becomes higher during the fault time. A new approach is needed to reduce a fault current in a power distribution system, since the fault currents influence ...
Yoo-Jung Cho, Sung-Hun Lim
doaj   +1 more source