THE EFFECT OF LOADING ON THE LIFETIME OF A 50 KV DISTRIBUTION TRANSFORMER ON THE LMS01 FEEDER IN TAMBAKREJA VILLAGE, ULP CILACAP CITY
DOI:
https://doi.org/10.58436/jeepa.v5i2.2481Keywords:
Distribution transformer , Loading, Lifetime, PLN, Thermal analysisAbstract
This Study Aims To Analyze The Effect Of Loading On The Life-Time Of A 50 Kv Distribution Transformer at Penyulang LMS01, Tambakreja Village, ULP Cilacap Kota. Distribution transformers are critical components in power systems, and overloading can accelerate performance degradation and reduce their lifespan. The research method involves measuring current, voltage, and load power of a B&D transformer from 2019 to 2023. The analysis reveals that excessive loading, especially during nighttime, reduces the transformer's lifespan by 8 years and 9 months from the standard 20 years, with an error value of 44,25%. The remaining lifespan is estimated at only 11 years and 3 months. This study recommends regular monitoring and limiting loads to below 80% capacity to extend the transformer's operational life.
References
O. S. Adekunle, “Strategies for Managing End-of-Life Power Transformers,” International Journal of Electrical Engineering Education, vol. 58, no. 2, pp. 120–130, 2021.
C. D. Brown, “Analysis of Voltage Sags and Swells in Distribution Networks and Their Impact on Equipment Life,” International Journal of Power Systems and Technology, 2021.
E. F. Davidson, Transformer Design and Theory of Operation, 2020.
S. Gupta, “Accelerated Thermal Ageing of Transformer Insulation,” Journal of Electrical Engineering, vol. 70, no. 1, pp. 50–58, 2019.
International Electrotechnical Commission, IEC 354: Loading Guide for Oil-Immersed Power Transformers, IEC Standard, 1972.
International Electrotechnical Commission, IEC 60599: Mineral Oil-Filled Electrical Equipment in Service – Guide to the Interpretation of Dissolved and Free Gases Analysis, IEC Standard, 2020.
T. J. Kim, “Performance Evaluation of Dry-Type Transformers in High Humidity,” in Proc. IAS Annu. Meeting, pp. 1–6, 2020.
H. Li, “Probabilistic Reliability Assessment of Transformers,” Reliability Engineering & System Safety, vol. 195, p. 106720, 2020.
J. P. Singh, “Review on Condition Monitoring and Health Management of Power Transformers,” Renewable and Sustainable Energy Reviews, vol. 135, p. 110410, 2021.
Manurung, Yosua Bitcar Jonathan. Studi Analisis Keandalan dan Efisiensi Transformator Daya di Gardu Induk Denai Pt. Pln Persero. Diss. Universitas Sumatera Utara, 2021.
Ramadhan, Tabah. "Pengaruh Rugi-Rugi Total Terhadap Suhu Dan Tepat Guna Transformator Akibat Pembebanan Distribusi Di PT Dow Agrosciences Indonesia." Jurnal Ilmiah Mahasiswa Teknik [JIMT] 2.2 (2022).
Aditama, I., I. Putu Sutawinaya, and I. Wayan Sudiartha. Analisis Pengaruh Treatment Minyak Transformator terhadap Penurunan Rugi-Rugi Daya Transformator Berdasarkan Perubahan Temperatur Transformator pada DS0873 Penyulang Katedral UP3 Bali Selatan. Diss. Politeknik Negeri Bali, 2022.
Nugraha, Mohammad Trian, and DINI FAUZIAH. "Penanggulangan Overload Transformator Distribusi dengan Metode Uprating di Gardu PNBS 20 KV ULP Pangandaran." Prosiding Seminar Nasional Energi, Telekomunikasi dan Otomasi (SNETO). 2021.
Maruf, Ali, and Yohanes Primadiyono. "Analisis Pengaruh Pembebanan Dan Temperatur Terhadap Susut Umur Transformator Tenaga 60 Mva Unit 1 Dan 2 Di Gi 150 Kv Kalisari." Edu Elektrika Journal 10.1 (2021): 19-24.
Setyadi, Firman Yuris. Analisa Peramalan Beban pada Gardu Induk 150 KV Mranggen dengan Metode Regresi Linear dan Eksponensial. Diss. Universitas Islam Sultan Agung Semarang, 2024.
Firmansyah, Septian. Analisa Pembebanan Gardu Distribusi KT 105 Penyulang Muara. Diss. Politeknik Negeri Bali, 2024.
Fauzan, Yasir, et al. "Persentase Pembebanan Trafo untuk Melayani Gardu-Gardu Distribusi pada Jaringan Tegangan Menengah." Arus Jurnal Sains dan Teknologi 2.2 (2024): 348-352.
Alfita, Riza, Rosida Vivin Nahari, and Adi Kurniawan Saputro. TEKNIK TENAGA LISTRIK (KONSEP DAN APLIKASI). PENERBIT KBM INDONESIA, 2025..
Sukadana, I. Wayan, Ketut Dody Darmawan, and I. Wayan Sutama. "Deteksi Dini Gangguan Transformator Berbasis Manajemen Transformator Untuk Meningkatkan Kinerja Operasi dan Finansial Di PT. PLN ULP Singaraja." Jurnal Teknik Elektro 10.2 (2021): 77-85.
Yasa, I. Wayan Sugara. "Mengatasi Transformator Overload Dengan Metode Uprating Transformator Pada Gardu Distribusi." Jurnal Kajian Teknik Elektro 8.2 (2023): 82-91.
Alfaresi, Bengawan, Dhany Rafiko, and Feby Ardianto. "Penerapan Metode TDCG dan Duval Triangle untuk Diagnosis Gangguan Internal pada Transformator Distribusi (Studi Kasus PT. Angkasa Pura Indonesia SMB II Palembang)." Jurnal Ampere 10.2 (2025): 233-242.
Nugroho, Haryoto Prasetyo. Dissolved Gas Analysis (Dga) untuk Diagnosis Gangguan pada Transformator Daya Pltgu Pt Pln (Persero) Unit Pelaksana Pembangkitan Belawan. Diss. Universitas Sumatera Utara, 2021.
Nisworo, Sapto, Arnawan Hasibuan, and Muhammad Daud. "Evaluasi Kondisi Belitan Generator Transformers (GT) Dengan Sweep Frequency Response Analysis." RELE (Rekayasa Elektrikal Dan Energi): Jurnal Teknik Elektro 5.1 (2022): 51-56.
Akhdiyatul, Akhdiyatul. "Analisis Kegagalan Transformator Pltu Sukabangun 2x10 MW Melalui Pengujian Dissolved Gas Analysis (Dga) Dan Breakdown Voltage (BDV)." Electrical Network Systems and Sources 1.1 (2022): 30-36.
Setiawan, Ferry, Farhan Alkhalif, and Aldi Henda Hermawan. "Analisis Kegagalan Transfomer Rectifier Unit 3 Pada Pesawat Boeing 737-200 Dengan Metode FMEA." Inaque: Journal of Industrial and Quality Engineering 13.1 (2025): 51-67.
CP, Angger Yulinda, M. Taqijjuddin Alawiy, and Bambang Minto Basuki. "Analisis Kegagalan Trafo Berdasarkan Hasil Pengujian Dissolved Gas Analysis Pada Trafo I 50 MVA 150/20kV GI PIER." SCIENCE ELECTRO 10.1 (2019).
