Keywords
Neutral Current
Load Imbalance
Harmonics.
Abstract
energy is one of the primary types of energy used to power various electrical appliances, such as household appliances, industries, and transportation. PT. PLN (Persero), as the electricity provider in Indonesia, strives to improve the efficiency of supplying electricity to the public, including reducing technical and non-technical losses. One of the causes of technical losses is the presence of neutral current in the three-phase four-wire system, which often occurs in PT. PLN (Persero) Karebosi Customer Service Unit. The need to calculate the losses resulting from load imbalance and harmonics imbalance poses a challenge for the company.This research aims to analyze the magnitude of losses due to neutral current in distribution transformers and understand how neutral current affects losses in these transformers. Data collection methods involved literature review, observations, and interviews with relevant personnel. The results of the instrument measurements and analysis indicate that the greater the load imbalance on the transformer, the greater the losses generated. Additionally, neutral current also has an impact on transformer losses.References
I. Gusti, N. Dwipayana, W. Rinas, and I. M. Suartika, “Analisis THD dan Peningkatan Arus pada Kawat Netral Akibat Pengoperasian Beban Non Linier yang Tak Seimbang pada Sistem Tenaga Listrik di RSUD Kabupaten Klungkung,” 2017.
PT. PLN (Persero), “Buku 1 Kriteria Enjinering Konstruksi Jaringan Distribusi Tenaga Listrik,” PT PLN, p. 170, 2010.
Syarifuddin and N. A. Noor, Mesin Arus Searah dan Transformator, Bahan Ajar. Makassar: Politeknik Negeri Ujung Pandang, 2012.
F. D. Petruzella, ElEctric Motors Control SyStemS Electric Motors and Control Systems, First Edition, 1st ed. New York: The MCGraw-Hill Companies, 2010. [Online]. Available: www.mhhe.com/EMCS1e
R. F. Sibarani and I. S. Amien, “Pengaruh Arus Netral terhadap Rugi - Rugi Beban pada Transformator Distribusi PLN Rayon Johor Medan,” DTE FT USU, vol. 12, no. 33, pp. 49–54, 2015.
H. Suryawinata, D. Purwanti, and S. Sunardiyo, “Sistem Monitoring Pada Panel Surya Menggunakan Data Logger Berbasis Atmega 328 Dan Real Time Clock DS1307,” J. Tek. Elektro, vol. 9, no. 1, pp. 30–36, 2017.