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I Putu Sutawinaya
Jurusan Teknik Elektro, Poliieknik Negeri Bali, Kampus Bukit Jimbaran, Kuta Selatan, Bali 80364, Indonesia
Automotive Engineering Energy Engineering Mechanical Engineering

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Meningkatkan kinerja gardu distribusi SK76 Penyulang Sukasada dalam menangani overblast menggunakan simulasi perangkat lunak ETAP I Putu Sutawinaya; Anak Agung Ngurah Made Narottama; I Gusti Ngurah Ade Pujana
Journal of Applied Mechanical Engineering and Green Technology Vol. 3 No. 1 (2022): March 2022
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (951.345 KB) | DOI: 10.31940/jametech.v3i1.1-7

Abstract

Distribution transformer serves to transform electrical energy from the power source to the customer. In the transformation process there are power losses which of course can reduce the efficiency of the transformer. The relatively high loading on the transformer will cause an increase in power losses, so its efficiency will decrease. The Sukasada Feeder SK76 Distribution Substation with a transformer capacity of 100 kVA supplies 253 customers with an installed power of 273 kVA. Based on the measurements that have been made during the peak load time (WBP), the average percentage of the transformer loading is 99.57% with an efficiency of 98.02%. Referring to the Circular of the Directors of PT. PLN (Persero) No.: 0017.E/DIR/2014, then the transformer has been declared overload (overblast) because the load has exceeded 80%. Efforts that can be made to improve the performance of the transformer include: upgrading the capacity of the transformer, adding additional substations or through network reconfiguration. Based on the trials that have been carried out by the author through the simulation of the ETAP 16.0 software, several results were obtained. If an uprating is carried out with a transformer capacity of 160 kVA, the percentage of loading decreases to around 61.46% with efficiency increasing to about 98.77%. If additional substations are added with a capacity of 50 kVA as well as network reconfiguration by transferring some of the load to another Distribution Substation (SK63), the result is that the percentage of loading is reduced to around 63.17% and efficiency increases to about 98.46%. The simulation results that have been carried out show that this condition has met the provisions/regulations set by PT. PLN (Persero).
Simulasi penerapan looping system JTR untuk meningkatkan layanan pelanggan PT. PLN (Persero) menggunakan perangkat lunak ETAP I Putu Sutawinaya; I Wayan Sudiartha; I Ketut Ta; I Gede Guntur Saputra
Journal of Applied Mechanical Engineering and Green Technology Vol. 3 No. 2 (2022): July 2022
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v3i2.78-86

Abstract

In the process of implementing a looping low-voltage network. In this study, the author analyzes the application looping of low-voltage networks in premium bronze customers which is applied to the DB0575 and DB0292 substations. There are several things that are analyzed in this study, namely transformer loading, voltage drop, loading of KHA, analysis of the best networks, and protection of NH Fuse. This research uses software in simulating the application looping of low-voltage networks. Transformer loading before the application of looping low voltage networks on DB0575 and DB0292 are 28.2% and 48.95% while after the application of looping of low-voltage networks are 28.2% and 51.9%. The smallest value of voltage drop and loading of KHA are resulted in the 1st direction at the DB0575 substation with a value of 1.17% and 7.08% and the 4th direction at the DB0292 substation with a value of 0.73% and 17.91%, And the recommended protection rating for the DB0575 substation after the application is using the NH Fuse 'gG' rated current 200 A with a maximum voltage of 690 V and a rated breaking capacity of 50 kA as a protection system on low voltage distribution panel for a 3-phase 250 kVA 2-way distribution transformer. Meanwhile, the DB0292 substation uses an NH Fuse 'gG' rated current 125 A with a maximum voltage of 690 V and a rated breaking capacity of 50 kA as a protection system on low voltage distribution panel for a 3-phase 315 kVA 4-way distribution transformer.
Co-Authors Anak Agung Ngurah Made Narottama I Gede Guntur Saputra I Gusti Ngurah Ade Pujana I Ketut Ta I Wayan Sudiartha