Aug 2026· Journal of Engineering and Technology· Vol 17· 0 citations· 12 references
Abstract
The maintenance of electrical island networks presents major reliability and performance challenges. Traditional methods often overlook the probabilistic nature of failures, leading to avoidable outages. This study proposes an enhanced Reliability-Centered Maintenance (RCM) framework using FMEA-AHP methodology for island networks. An existing network was modelled in ETAP using equipment data and maintenance history from the IEEE Std-493 Gold Book and the Dangote Petroleum Refinery and Petrochemical (DPRP) Captive Power Plant. ETAP simulations quantified energy losses and annual failure rates. Critical equipment was identified using the Pareto Principle, and Failure Mode and Effect Analysis (FMEA) determined failure modes. The Analytical Hierarchy Process (AHP) prioritized high-impact failures, guiding task selection. Implementing ETAP-based reliability assessment combined with RCM, FMEA, and AHP resulted in a 56.36% reduction in interruption duration and a 64.87% reduction in failure rate. A structured preventive maintenance framework was developed to optimize strategies, reduce costs, and improve system reliability in island networks.
This study conducts a detailed a Reliability-Centered Approach to Preventive Maintenance (RCM) evaluation of an 11/0.415 kV secondary distribution substation using actual 2024 operational failure data comprising 187 recorded component failures and 1,003 outage hours across eleven major equipment categories. Reliability...
Engr Dr. E. D. Ekeriance· Engineering and Technology J...· 0 citations
Ice storms threaten distribution network resilience through combined mechanical loading and secondary failures, increasing the risk of prolonged power interruptions. This paper proposes a two-stage robust energy storage planning strategy for evolving ice storm conditions. A line failure probability model combines wind,...
Zhi-Yi Peng, Jian Li, Qing-Yuan Li et al.· Processes· 0 citations
Electric distribution systems on Islands are highly vulnerable to frequent cyclone-induced outages due to their reliance on radial feeders and dependence on diesel for power generation. This work proposes a two-layer resilience framework that integrates battery storage, solar photovoltaic, and vehicle-to-grid enabled e...
Sapna B. Verma, Bhavnesh Kumar, Arjun Tyagi· Proceedings of the Instituti...· 0 citations
Production loss represents a significant hazard in the process industry, and when coupled with catastrophic events, the financial consequences can be severe. High equipment failure rates and the associated risks of lost production time underscore the need for an optimal maintenance program that ensures safe, reliab...
Farhan Baig, Azeem Uddin Uzair, Salman Baig et al.· Life Cycle Reliability and S...· 1 citation
Urban power grids are exposed to coupled equipment ageing, weather stress, peak loading, distributed-generation uncertainty, and communication failures, whereas conventional reliability indices are usually calculated from fixed annual averages. This paper proposes a hierarchical evidence-updated Bayesian network for pr...
This paper presents an innovative approach to optimising the reliability of electrical systems
associated with wind farms by integrating advanced methods, including the Universal
Moment Generating Function (UMGF), artificial neural networks (ANN), and the Harmony
Search (HS) algorithm. The study focuses on modelling mu...
Aissa Assas, H. Guentri, T. Allaoui et al.· ITEGAM- Journal of Engineeri...· 0 citations
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