Analisa Uprating Transformator Daya 16 MVA Menjadi 60 MVA pada GI Blora untuk Meningkatkan Mutu Penyaluran Energi Listrik

Afifah, Muthia Nur and , Aris Budiman, S.T., M.T. (2021) Analisa Uprating Transformator Daya 16 MVA Menjadi 60 MVA pada GI Blora untuk Meningkatkan Mutu Penyaluran Energi Listrik. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

In the electricity system, every year there is a growth in the number of customers so that it affects the increase in the amount of electrical energy distributed. The increasing number of electricity consumers, the greater the electrical energy distributed by the substation. If the electrical load on the substation is greater than its capacity, the substation will experience a distribution transformer that exceeds capacity. Ideally the transformer is loaded with 80% of the nominal transformer capacity, transformer loading greatly affects the performance of a transformer that operates with a load of 100% or more in the long term will cause some performance degradation. In the conditions prior to the 16 MVA uprating, the ETAP simulation results obtained at the primary transformer BUS 1 656 kW active power, reactive power 3 kVar and current 2.5 A, active power secondary transformer BUS 2 656 kW, reactive power 0.64 kVar and current 18.9 A. Meanwhile, after an uprating of 60 MVA, the active power of the BUS 1 primary transformer is 1129 kW, the reactive power is 16 kVar and the current is 4.3 A, the active power of the secondary transformer BUS 2 is 1129 kW, the reactive power is 13 kVar and the current is 32. ,6 A. From the data, after the 60 MVA transformer rating up was done, the above was quite good, because the active power, reactive power and current did not decrease but instead increased in each feeder even though there were some feeders who experienced changes in BLA 04 which was originally there in transformer 1 it was changed to BLA 05 which was originally in transformer 2. Total active power, reactive power and current before and after the uprating had a difference of 2360 kW, 25,749 kVar and 95.1 A. Uprating the transformer can increase reliability operational performance in the distribution of electric power to consumers, with changes in the transformer uprating process in the electric power system also greatly affects the protection system that has been installed. This effort is carried out to improve the quality of electricity distribution to consumers, uprating transformers by increasing the transformer power capacity from 16 MVA to 60 MVA on a 150/20 kV network system.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Transformator, Uprating, Pembebanan Penyulang, ETAP
Subjects:	T Technology > T Technology (General)
Divisions:	Fakultas Teknik > Teknik Elektro
Depositing User:	Muthia Nur Afifah
Date Deposited:	23 Oct 2021 02:30
Last Modified:	23 Oct 2021 02:31
URI:	http://eprints.ums.ac.id/id/eprint/93358

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