Improving 20 kVA Generator Power Performance by Rewinding the Stor Conductor Windings

  • Rianto Wijaksana Silalahi Universitas Pembangunan Panca Budi, Medan, Sumatera Utara
  • Parlin Siagian Universitas Pembangunan Panca Budi, Medan, Sumatera Utara
  • Haris Gunawan Universitas Pembangunan Panca Budi, Medan, Sumatera Utara
Keywords: 20 kVA generator, rewinding, stator winding, efficiency, and power factor

Abstract

The decline in power performance in generators can be caused by various factors, one of which is the degradation of the stator conductor windings due to age, excessive temperature, or unstable operational conditions. This study aims to analyze and improve the power performance of a 20 kVA generator through the rewinding process of the stator windings with new conductors that meet technical standards. In this study, the methods used include initial analysis of the condition of the old windings, planning the winding redesign, the rewinding process, and testing the results through measuring voltage, current, efficiency, and power factor. The test results show a significant improvement in generator performance parameters after the rewinding process. The output voltage becomes more stable, power losses decrease, and efficiency increases from 0% to 80%. In addition, the power factor has improved from 0 to 0.92. This improvement proves that the rewinding process with the right material and technical specifications can restore and even significantly improve generator performance. This study makes a real contribution to the maintenance and reconditioning of electrical equipment, especially in small-to-medium scale power generation systems.

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References

Aryza, S., Novelan, M. S., & Islam, M. R. (2025). A Data-Driven Framework for Integrating Decision-Making and Operational Efficiency in Multi-Product Retail: A Case Study with Experimental Evaluation. ZERO: Jurnal Sains, Matematika dan Terapan, 9(1), 140-149.
B. Satria, et al (2024, December). DEVELOPMENT OF A DC MOTOR SPEED REGULATION SYSTEM USING PWM FOR TWO-WHEELED ELECTRIC VEHICLES. InPROCEEDINGS OF THE NATIONAL SEMINAR FACULTY OF ENGINEERING AND COMPUTER SCIENCE, DHARMAWANGSA UNIVERSITY(Vol. 1, No. 1, pp. 470-477).
Chapman, S. J. (2012). Electric Machinery Fundamentals (5th ed.). McGraw-Hill Education.
Erivianto, D., Dani, A., & Gunawan, H. (2020). Electrical Energy Conversion System as an Alternative Energy for Household Needs. InScenario (Seminar of Social Sciences Engineering and Humanities)(pp. 323-334).
Gunawan, H. (2016). The Effect of Rewinding Process on Synchronous Generator Performance. Journal of Electrical Engineering, 12(1), 33–40.
Nasar, S. A. (1990). Electric Machines and Power Systems. McGraw-Hill.
Theraja, B.L., & Theraja, A.K. (2005). A Textbook of Electrical Technology: Volume II AC & DC Machines. S. Chand Publishing.
Wildi, T. (2006). Electrical Machines, Drives and Power Systems (6th ed.). Pearson Prentice Hall.
Yusuf, M., Haris, D., & Suparman. (2020). Generator Efficiency Analysis After Rewinding. Journal of Technology and Energy, 8(2), 45–52
IEEE. (1995). IEEE Std 115-1995: IEEE Guide: Test Procedures for Synchronous Machines. IEEE Standards.
Siagian, P., Alam, H., & Putra, RR (2023). Low-Speed Wind Energy Potential for Power Generation with Modified Icewind Turbines.INTECOMS: Journal of Information Technology and Computer Science,6(2), 757-763.
Siagian P et al (2024)Optimization Strategy For Light Intensity In Solar Cells To Improve Energy Efficiency. Computer Science Media Journal, 4(1), 91-10.
Sutanto, D. (2018). Electrical Machines: Theory and Practice. Yogyakarta: Andi Offset.
Tharo Z et al (2022)Design and Implementation of a 450 VA Solar Panel-Based Generator. Journal of Electrical and System Control Engineering, 6(1), 50-58.
F.SURYATMO, Electrical Engineering, Alternating Current Motors and Generators
INDRA GUNAWAN, Guide to rewinding single-phase electric motor coils
Zuriman Anthony, Alternating current electric machines
Published
2025-08-25
How to Cite
Rianto Wijaksana Silalahi, Parlin Siagian, & Haris Gunawan. (2025). Improving 20 kVA Generator Power Performance by Rewinding the Stor Conductor Windings. INFOKUM, 13(05), 1838-1847. Retrieved from https://www.infor.seaninstitute.org/index.php/infokum/article/view/3012