Volume 15

Volume 15 (2026)

Published in 2026

Issues in this Volume

Issue 2 (December)

Issue 1 (September)

Articles in this Volume

5 articles
1
Research Article

Advancements in Raw Material Availability, Development Strategies, and Industrial Prospects for Zinc-Carbon Dry Cell Production In Nigeria and Uganda

Excellence Favor, Abubakar Abdulkarim*, Yinusa Ademola Adediran

Nigeria could boast of at least six functioning dry cell manufacturing industries. Unfortunately, today, these industries have gone into oblivion with only one trying, epileptically, to survive. One major factor responsible for this is the higher cost of production than the sales price of imported ready-made cells. This, in turn, is due to almost zero local material content of Nigeria-made cells. ...

Oct, 2026 pp. 65-81
2
Research Article DOI: 10.67203/zjeet.2026.db4xw85g

Development of an Optimal On-Load Tap-Changing Scheme for a Transformer to Improve Power Quality

Ahmad Ibrahim*, Boyi Jimoh, Adamu Abubakar Sa’idu

Voltage instability remains a major operational challenge in large-scale transmission networks, particularly in developing power systems with increasing load demand. This paper proposes a coordinated on-load tap changer (OLTC) control strategy based on a Hybrid Particle Swarm Optimization–Grey Wolf Optimization (HPSOGWO) algorithm to enhance voltage stability and power quality. The proposed approa...

Sep, 2026 pp. 53-64
3
Research Article DOI: 10.67203/zjeet.2026.ikd6g1hm

Underground Fault Detection and Classification: An Explainable, SCADA-Ready Pipeline with Adaptive DWT and Compact CNN-Transformer

Kabiru Ibrahim Dahiru*, Abubakar Ahmed, Sulaiman Haruna Sulaiman, Yusuf Idris, Aliyu Lawan Musa, Ibrahim Mahdi

Underground faults are difficult to detect and classify reliably because transient signatures are short-lived, dispersive, and often masked by operating noise. Deployment in supervisory control and data acquisition (SCADA) environments demands deterministic, sub-millisecond latency and transparent decision logic. This research presents an explainable, SCADA-ready pipeline that couples adaptive dis...

Sep, 2026 pp. 35-52
4
Research Article DOI: 10.67203/zjeet.2026.vru9apwd

A Hybrid Artificial Intelligence Framework for OTDR-Based Anomaly Detection and Fault Classification in Optical Fibre Networks

Adams Muhammed*

Optical fibre networks constitute the backbone of modern communication infrastructures, making timely and accurate fault diagnosis essential for maintaining network reliability and service availability. Although Optical Time Domain Reflectometer (OTDR) measurements are widely employed for fibre fault localization, manual interpretation of OTDR traces is labor-intensive, time-consuming, and highly ...

Sep, 2026 pp. 14-34
5
Research Article DOI: 10.67203/zjeet.2026.ru0hxygb

Firefly Algorithm-Based Optimal Deployment of Unified Power Quality Conditioner for Loss Minimization and Voltage Stability Enhancement in Distribution Networks

Musa Mustapha*, Mustapha Kunduli, Babangida Modu, Modu Abbagana, Modu Ali Gana, Musa Baba Lawan

The increasing penetration of nonlinear loads and distributed generation (DG) in distribution networks poses significant challenges to voltage regulation and power loss minimization. Although Unified Power Quality Conditioner (UPQC), has proven effective in enhancing power quality and system stability, determining its optimal location and size remains a complex optimization problem. This study exa...

Sep, 2026 pp. 1-13
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