Rancang Bangun Alat Monitoring Ketidakseimbangan Beban Pada Jaringan Tegangan Menengah
Main Article Content
Keywords
Abstract
Load unbalance is a fault that can damage power transformers in medium voltage networks. The larger load or current unbalance cause heating at the transformer winding and can cause fatal damage if it occurs in a long time. One way to prevent this damage is by monitoring the percentage of load unbalance or current unbalance in medium voltage network. This paper presents the design of load unbalance monitoring equipment on medium voltage networks. Arduino microcontroller is used as the main controller. Current sensors and voltage sensors are used to obtain the data of current and voltage at any time. The load unbalance monitoring result that exceeds the setting value is sent to a warning systems and mobile phones. The test results on the secondary side of the power transformer showed that the equipment can monitor load (current) unbalance with a maximum difference of 0.17%, voltage unbalance with maximum difference of 0.033% and neutral current with maximum difference of 3.29A compared to the actual values. The monitoring equipment is also capable of sending data to sound warning system and to the mobile phone when the percentage of load (current) unbalance exceeds the setting value, i.e. 30%.
Keywords : load unbalance,monitoring, medium voltage network, power transformer
Abstrak— Ketidakseimbangan beban merupakan gangguan yang dapat merusak transformator daya di jaringan tegangan menengah. Ketidakseimbangan beban atau ketidakseimbangan arus yang besar menyebabkan pemanasan pada belitan transformator dan menyebabkan kerusakan fatal bila berlangsung pada waktu yang lama. Salah satu cara untuk mencegah kerusakan ini adalah dengan memonitoring persentase ketidakseimbangan beban atau ketidakseimbangan arus di jaringan tegangan menengah. Makalah ini menyajikan perancangan dan pembuatan alat monitoring ketidakseimbangan beban pada jaringan tegangan menengah. Mikrokontroler Arduino digunakan sebagai pengendali utama. Sensor arus dan sensor tegangan digunakan untuk memperoleh data arus dan tegangan setiap saat. Hasil monitoring ketidakseimbangan beban yang melebihi nilai yang sudah ditentukan dikirim ke sistem peringatan dan handphone. Hasil pengujian pada sisi sekunder transformator daya menunjukkan bahwa peralatan dapat memonitoring ketidakseimbangan beban (arus) dengan perbedaan maksimum 0,17%, ketidakseimbangan tegangan dengan perbedaan maksimum 0,033% dan arus netral dengan perbedaan maksimum 3,29A dibandingkan dengan nilai-nilai sebenarnya. Alat monitoring juga mampu mengirimkan data arus ke sistem peringatan bunyi dan ke handphone bila persentase ketidakseimbangan beban (arus) melebihi nilai yang sudah ditentukan, yakni 30%.
Kata Kunci : ketidakseimbangan beban, monitoring, jaringan tegangan menengah, transformator daya
References
[2] Motors and Generators, Nema Standards Publications No.MG-1, (1993).
[3] Wang, Y.J., and Yang, M.J., Probabilistic Modeling of Three-Phase Voltage Unbalanced Caused by Load Fluctuations, IEEE PES Winter Meeting, pp.2588-2593, (2000).
[4] von Jouanne, A., and Banerjee, B., Assessment of Voltage Unbalance, IEEE Transaction on Power Delivery, vol. 16, no.4, pp.782-790, (2015).
[5] Kolagar, A. D., Hamedani, P., and Shoulaie, A., The Effects of Transformer Connection Type on Voltage and Current Unbalance Propagation, 3rd Power Electronics and Drive Systems Technology Conference, pp.308-314, (2012).
[6] Kurnianto, D., Hadi, A.M. dan Wahyudi, E., Perancangan Sistem Kendali Otomatis Pada Smart Home Menggunakan Modul Arduino Uno, Jurnal Nasional Teknik Elektro, vol. 5, no.2, hal.260-270, (2016).
[7] PT. PLN (Persero) P3B SUMATERA, Pedoman O dan M Transformator Tenaga, (2014).
Article Sidebar
Article Details
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-NonCommercial-ShareAlike 4.0 International 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).
The authors declare that:
1. This paper has not been published in the same form elsewhere.
2. It will not be submitted anywhere else for publication prior to acceptance/rejection by this Journal.
3. A copyright permission is obtained for materials published elsewhere and which require this permission for reproduction.