Analisis Terjadinya Arus Netral Pada Trafo Distribusi 160 kVA

Arfita Yuana Dewi, Asnal Effendi, Fahody M Syafar

Abstract


The Power distribution in a 3-phase system, cannot be separated from the flow of current in the neutral of the transformer, which will cause power losses (losses) where current flows into the neutral conductor and losses that flow into the neutral conductor. This study was conducted to determine the causes and magnitude of power losses that occur due to the occurrence of neutral current flowing in the neutral conductor in a 160kVA distribution transformer. The research location taken is the Distribution Transformer (G187 T) which is located on Jl. Hos Cokroaminoto Wisma Ombilin where load imbalances often occur. From the results, it can be seen that if the neutral wire has a cross-sectional size of 50 mm2, the current that passes through the neutral wire is 6.4% for the day and for the cross-sectional size of the wire is 70 mm2, it can reduce the power flowing to the neutral by a percentage of 4.77%. for the daytime. Efficiency value that occurs is greater at night that is 94.87% while for the day it is 93.44%. For the distribution of each - each phase, especially the S phase, so that it can be balanced because the power supplied to the S phase is too small. We recommend that the current flowing in the neutral wire must be channeled to the ground so that the current flowing in the neutral wire becomes zero.


Keywords


Neutral Current, power losses, efficiency.

Full Text:

PDF

References


Abdul Kadir (1981), “Electric Transformer”, Pradnya Paramita Jakarta

Aditya, L. (2017). Jurnal Ilmiah Elektrokrisna Vol. 6 No.1 Oktober 2017. 6(1), 33–41.

Ginting, Y., Tamba, P., & Agung, U. D. (2019). Sistem Pentanahan Pada Jaringan Distribusi Di PT. PLN

( Persero ). VIII(September), 81–86.

Ohoiwutun, J., Dwiyanto, M., & Sogen, T. (2019). Analisis Pengaruh Ketidakseimbangan Beban Terhadap Efisiensi Transformator Distriusi 100 kVA pada PT . PLN (PERSERO).

Sentosa Setiadji, J., Machmudsyah, T., & Isnanto, Y. (2008). Pengaruh Ketidakseimbangan Beban Terhadap Arus Netral dan Losses pada Trafo Distribusi. Jurnal Teknik Elektro, 7(2), 68–73. https://doi.org/10.9744/jte.7.2.68-73

Stevenson, William D. 2000. Analisa Sistem Tenaga Listrik. Diterjemahkan Oleh: Kamal Idris. Jakarta

Tobi, M. D. (2018). Analisis Pengaruh Ketidakseimbangan Beban Terhadap Arus Netral Dan Losses Pada Transformator Distribusi Di PT PlN (Persero) Area Sorong.




DOI: http://dx.doi.org/10.33087/jepca.v4i1.45

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Journal of Electrical Power Control and Automation (JEPCA)
Program Studi Teknik Listrik, Fakultas Teknik, Universitas Batanghari
Adress: Jl. Slamet Ryadi, Broni-Jambi, Kodepos: 36122, email: teknikjepca@gmail.com

Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.