Comparative Analysis of Windings and Vector Groups in 20/0.4 kV Distribution Transformers at CV. Centrado Prima
DOI:
https://doi.org/10.32497/eksergi.v18i3.3765Keywords:
distribution transformer, vector group, transformer turns ratio, transformer voltage ratioAbstract
Turn ratio test is a comparison test of the number of secondary turns with the primary turns on the transformer. The turns ratio and group vector testing is one of the routine transformer tests. This test generally uses the Transformer Turns Ratio (TTR) test tool, the test equipment used sometimes experiences technical and non-technical problems so a comparative test method is needed to get a good analysis. The research method used is observational research and literature study, namely analyzing the transformer to be studied by conducting TTR testing in two ways, namely testing with test equipment and three-phase low voltage sources, aiming to obtain a very good level of accuracy. The test results were analyzed and compared with theory and calculations, with reference to the IEC 60076-1 standard. The results of the comparison of windings and group vectors using TTR 100 test equipment and a 3-phase low voltage source (TVR) show the same conclusions as the results of the analysis, where the first transformer sample is in normal condition and meets the requirements. SPLN D3.002-1:2007 or IEC Standard 60076-1. While the second sample transformer is in an abnormal condition in the W winding where the difference value is above 0.5%.References
D. A. Saputra, “Analisis Pengujian Transformator Daya Mt24
KV/33KV 90MVA Di PT. Vale Indonesia, Sorowako - Sulawesi
Selatan.,” Universitas Muhammadiyah Malang, 2018.
A. Makkulau, N. Pasra, and R. R. Siswanto, “Pengujian Tahanan
Isolasi Dan Rasio Pada Trafo Ps T15 Pt Indonesia Power Up Mrica,”
vol. 10, no. 1, p. 21, 2018.
W. H. Mulyadi, R. Khairunnisa, Julita, and J. Kornelius, “Voltage
Ratio Analysis On Routine Testing Of Distribution Transformer In
The Short Circuit Laboratory Of PT. PLN Persero, Duri Kosambi,
Cengkareng,” vol. 4, pp. 127”“131, 2019.
R. Ondrialdi, U. Situmeang, and Zulfahri, “Analisis Pengujian
Kualitas Isolasi Transformator Daya di PT. Indah Kiat Pulp and Paper
Perawang,” SainETIn, vol. 4, no. 2, pp. 72”“81, 2020, doi:
31849/sainetin.v4i2.6288.
R. Fadly, “Analisa Pengujian Tahanan Isolasi Trafo Daya 10 MVA
/20 KV Pada Gardu Induk Talang Ratu PT.PLN (PERSERO)
Palembang,” vol. 53, no. 9, pp. 1689”“1699, 2014.
S. Sudirham, Analisis Sistem Tenaga Listrik, Juli 2012. Bandung:
Erlangga, 2012.
Megger, Three-Phase TTR (Transformer Turn Ratio Test Set)
Intruction Manual AVTM550503, Rev E. Norristown, PA 19403:
Megger, 2005.
Standart International IEC, IEC 60076-1, Edisi 2.1. Swiss, 1999.
SPLN D3 002-1:2007, Spesifikasi Transformator Distribusi. Jakarta,
F. Heathcote, Martin J. CEing, The J & P Transformer Book, Twelfth.
Stafford: Johnson & Philips Ltd., 1998.
M. Manurung, “Studi Pengujian Vektor Group Transformator
Distribusi Tiga Phasa,” Universitas Sumatera Utara, Medan, 2010.
Downloads
Published
Issue
Section
License
Authors who publish with this journal agree to the following terms:Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).