ORCID
0000-0003-2735-643X
Abstract
Rural electrification faces challenges due to significant voltage drops over long transmission distances, affecting reliability and power quality. While the Iliceto Shield Wire Scheme (ISWS) offers a modern cost-effective solution, voltage stability remains a challenge. This study analyses voltage profile enhancement within ISWS, focusing on the Chalinze-Mbwewe section of the 132 kV transmission line, using LTSpice simulations. Due to LTSpice limitations, direct solar PV integration was mimicked by introducing a secondary voltage source at each load centre, producing 33 kV to match the original source voltage. This approach maintained improved voltage profile from Msoga Village to Mbwewe over 80.9 Kilometers. Simulation results with existing 50 mm² indicate that before solar PV integration, voltage drops averaged 17.8%, exceeding acceptable limits. After integration, voltage drops were reduced to within 5%, improving system stability. Upgrading to a 100 mm² conductor further enhanced voltage profile and minimized transmission losses, highlighting the importance of solar PV integration and conductor optimization for sustainable rural electrification in Tanzania.
Recommended Citation
Chaula, E., Mwammenywa, I., & Kihwele, S. (2026). Voltage Profile Enhancement in Iliceto Shield Wire Scheme for Rural Electrification: Case Study of Chalinze-Mbwewe Transmission Line in Tanzania. Tanzania Journal of Engineering and Technology (TJET), 45(1), 141-151. https://doi.org/https://doi.org/10.65085/2619-8789.1032
Publisher Name
University of Dar es Salaam