Analisis dan Implementasi Pemeliharaan Transformator Daya 8 MVA di PT. PLN (Persero) ULPL Paok Motong

Muhamad Nanang Indrajaya Saputra Universitas Mataram
I Made Ari Nrartha Universitas Mataram
I Made Ginarsa Universitas Mataram
Bakti Anggara PT. PLN (Persero)

DOI: https://doi.org/10.36546/jte.v15i1.1564

Keywords: Transformer Maintenance, Power Transformer, Polarization Index, Insulation Resistance

Abstract

The maintenance of power transformer is very important in ensuring that the distribution of electrical power runs optimally. One of the crucial aspects of maintenance is the insulation resistance testing, which serves to evaluate the quality of insulation to prevent potential system failures. This research aims to measure and analyse the insulation resistance values on the three parts of transformer, including the primary side, secondary side and primary-secondary side. The method applied includes measuring the insulation resistance on the three side with the polarization index standard as a reference according to the PT. PLN (Persero) board of director’s circular on the distribution transformer maintenance method based on asset management principles no. 0017.E/DIR/2014. The test results show that the polarization index on the primary side, secondary side and primary-secondary side are 1,8; 1,87; and 1,42. The test results can be categorized as good because they are greater than the established standard (good standard between 1,25 – 2,0). This result shows that the transformer has adequate insulation quality, thus it can be declared operationally feasible.

References

[1] Arfianda, M. Analisa Penggunaan Rele Diferensial Sebagai Pada Transformator Daya Gardu Induk Paya Pasir (PT. PLN PERSERO). Skripsi. Universitas Muhammadiyah Sumatera Utara. 2019. [Online]. Available: http://respository.umsu.ac.id/handle/123456789/7158.
[2] Ramadhan, H. D. Analisis Pemeliharaan Prediktif Transformator Daya Di PT. PLN GI Blimbing Malang Dengan Metode Markov. Skripsi. Universitas Brawijaya. 2017. [Online]. Available: https://elektro.studentjournal.ub.ac.id/index.php.teub/article/view/822.
[3] Akbar, M. F. Analisa Karakteristik Minyak Isolasi Transformator Daya 11Kva Menggunakan Metode DGA dan Breakdown Voltage Pada Gardu Kilang Pertamina RU-II Dumai. Skripsi. Institut Tenologi Sepuluh November. 2018. [Online]. Available: http://repository.its.ac.id/id/eprint/52669
[4] Muhammad, R. Perhitungan Health Index Untuk Menentukan Umur dan Kondisi Transformator Daya Kapasitas 80 MVA PT. KDL. Skripsi. Universitas Sultan Ageng Tirtayasa. 2023. [Online]. Available: http://eprints.untirta.ac.id/id/eprints/29932.
[5] Oktaviani, S & Suhendar. Pemeliharaan Komprehensif Komponen Gardu Distribusi Di Desa Luwuk, Kampung Panjong. Jurnal Infoematika dan Teknik Elektro Terapan. Vol. 13, No. 1, pp. 147-153, 2025. Doi: http://dx.doi.org/10.23960/jitet.v13i1.5545.
[6] Gu, Hongrui. Mechanical Fault Diagnosis of On-Load-Tap-Changer Based on Improved Variational Mode Decomposition and Relative Density-Based Outlier Score. IET Electric Power Applications. 17:1423-1436. 2023. Doi: 10.1049/elp2.12354.
[7] Situmeang, U., Mulyanto, B., & Halilintar, M, P. Analisis Kondisi Tahanan Isolasi Transformator Daya 125 MVA Menggunakan Indeks Polarisasi Tangen Delta dan Breakdown Voltage Di PLTU Tenayan Raya 2 X 110 MW. (Jurnal). JTE UNIBA. Vol. 6, No. 2. 206-211. April 2022.
[8] Suganda & Muis, A. Analisa Kualitas Tahanan Isolasi Transformator Daya. (Jurnal). Sinusoida. Vol. XXIII, No. 2 1-10. Desember 2021.
[9] PT. PLN (Persero). Edaran Direksi Tentang Metode Pemeliharaan Trafo Distribusi Berbasis Kaidah Manajemen Aset No. 0017.E/DIR/2014. In PT. PLN (Persero) Pusat.
[10] PT. PLN (Persero). Buku Panduan O&M Tentang Pemeliharaan Transformator Tenaga. Jakarta: PT. PLN (Persero) P3B. 2003.

Published

2025-04-20

Issue

Vol 15 No 1 (2025): JURNAL TEKNIK ELEKTRO

Section

Articles

An author who publishes in the Jurnal Teknik Elektro (JTE) agrees to the following terms:

Author retains the copyright and grants the journal the right of first publication of the work simultaneously licensed under the Creative Commons Attribution-ShareAlike 4.0 License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

Submission of a manuscript implies that the submitted work has not been published before (except as part of a thesis, report, or abstract); that it is not under consideration for publication elsewhere; that its publication has been approved by all co-authors. If and when the manuscript is accepted for publication, the author(s) still hold the copyright and retain publishing rights without restrictions. For the new invention, authors are suggested to manage its patent before publication. The license type is CC-BY-SA 4.0.