Results 51 to 60 of about 340 (134)

Investigating the performance of non‐standard characteristics‐based overcurrent relays and their optimum coordination in distributed generators connected networks

IET Generation, Transmission & Distribution, 2023
To handle the challenges attributed to the distributed generators, the protection system of distribution networks needs to be evolved. Recent protection schemes modify the standard characteristics of overcurrent relays, called non‐standard ...
Tejas M. Vala, Vipul N. Rajput, Ameena Saad Al‐Sumaiti   +2 more
doaj   +1 more source

Breakdown Characteristics of PEEK Insulation Immersed in Synthetic Ester Liquid for Subsea Cable Connectors

Electrical Materials and Applications, Volume 3, Issue 1, January/December 2026.
This paper proposes integrating polyether ether ketone (PEEK) with a synthetic ester liquid as the composite insulation system for subsea cable connectors. The study commences with a comparative analysis of the electrical performance of PEEK when immersed in a synthetic ester liquid and a mineral oil.
Danny Guana, Qiang Liu, Michael Jeschke, Daniel Walton   +3 more
wiley   +1 more source

Data‐Driven Hybrid Approach for Condition and Risk Assessment of Secondary Equipment in Converter Stations

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This study develops a data‐driven hybrid framework for assessing the condition and risk of converter stations. By combining adaptive thresholding, a condition assessment algorithm and a two‐stage Weibull failure model, it enables early fault detection and quantification of equipment degradation. Case study shows enhanced sensitivity to latent failures,
Peiyuan Zou, Chang Li, Yong Li, Fei Zhao, Kunfan Jiang, Li Liu, Gang Lin, Jiayan Liu   +7 more
wiley   +1 more source

Adaptive Protection Coordination for Microgrids Using Dual‐Setting Directional Overcurrent Relays: A Real‐Time HIL Validation Approach

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This research presents a robust protection coordination strategy using dual‐setting directional overcurrent relays (DS‐DOCRs) and a novel optimisation approach to address challenges in adaptive protection. A modified objective function, incorporating primary and backup relay operating times along with coordination time intervals (CTIs), is designed to ...
Oussama Merabet, Aissa Kheldoun, Aidil Azwin Zainul Abidin, Saad Mekhilef, Nima Khosravi   +4 more
wiley   +1 more source

Adaptive Hybrid Overcurrent Protection Scheme with High Shares of Distributed Energy Resources

Energies
In this research paper, an adaptive and intelligent protection scheme is developed that brings selectivity and sensitivity to the conventional overcurrent relays considering the changes in grid topologies, changes in grid operation modes, and changes in ...
Gourab Banerjee, Christian Hachmann, Jan Lipphardt, Nils Wiese, Martin Braun   +4 more
doaj   +1 more source

Multi‐point‐line Grounding Fault Section Identification in Urban Distribution Networks by Using Coordinated Multi‐Source Data

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
A multi‐source data collaborative fault section identification method for high fault‐tolerant distribution networks is proposed. The method constructs a robust mixed‐integer linear programming cooperative model by integrating zero‐sequence current direction features and fault indicator alarm signals.
Wangqing Mao, Hangyu Zhao, Xiuru Wang, Jian Sun, Rao Fu, Yuanming Zhang   +5 more
wiley   +1 more source

Design of an Arduino-Based Inverse Type Overcurrent Relay

Emitor: 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, Marselino Pakorong, Priyo Handoko Chusnama Ali   +2 more
doaj   +1 more source

The Plant Propagation Algorithm for the Optimal Operation of Directional Over-Current Relays in Electrical Engineering

Mehran University Research Journal of Engineering and Technology, 2020
In modern and large scale power distribution topologies, directional relays play an important role in the operation of an electrical system. These relays must be coordinated optimally so that their overall operating time is reduced to a minimum. They are
Muhammad Sulaiman, Muhammad Sulaman, Abdelwahed Hamdi, Zubair Hussain Hussain   +3 more
doaj   +1 more source

Short‐Circuit Current Analysis of Grid‐Connected Inverters: An Analytical Approach Using Hardware Natural Response and Control Superposition

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a closed‐form analytical framework predicting the sub‐cycle transient peak currents of grid‐following and grid‐forming inverters during short‐circuit faults. The method uniquely decouples the fault current into a hardware natural response and a control‐commanded response, enabling rapid estimation of instantaneous initial peaks ...
Ziqian Zhang, Robert Schuerhuber
wiley   +1 more source

Distance optimization and directional overcurrent relay coordination using edge-powered biogeography-genetic algorithms

Journal of Cloud Computing: Advances, Systems and Applications
The effective functioning and regulation of power systems crucially rely on the coordination of distance and directional overcurrent relays. Accurate fault detection and successful clearing sequences require support for each relay and the maintenance of ...
Mohammadreza Aminian, Mehdi Jafari Shahbazzadeh, Mahdiyeh Eslami   +2 more
doaj   +1 more source