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A Analisis Kelayakan Battery 110 VDC Dalam Mengsuplai Pembebanan ( Studi Kasus Gardu Induk Perawang 150 kV ) : Feasibility Analysis of 110 VDC Battery in Supplying Loading (Case Study of 150 kV Perawang Substation) nurhadi, irvan
Indonesian Journal of Electrical Engineering and Renewable Energy (IJEERE) Vol 2 No 1 (2022): IJEERE Juni 2022
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.725 KB) | DOI: 10.57152/ijeere.v2i1.179

Abstract

The rectifier functions as a transformer from AC voltage to DC voltage. The problem generally lies in the AC voltage when entering the recifier, namely the occurrence of trip disturbances on the side of the self-use transformer (PS) at the substation which is usually caused by disturbances in the transmission line or disturbances in the power transformer. The purpose of this research is to determine the condition and feasibility the battery in the perawang substation. From the measurement of each cell on the 110 Vdc battery unit 1 month of February, it can be seen that the average charge voltage is 1.40V, when the average discharge voltage is 1.29 V. Then the unit 2 battery is in charge the average voltage is 1, 41 V while when the discharge state the average voltage is 1.29 V. Thus, according to PLN measurement standards a good and decent battery has a voltage of 1.30 V to 1.450 V when charged while a decent battery discharge has a voltage of 1.10 V up to 1.25 V, it is stated that the 110 Vdc battery at the Perawang Substation unit 1 and unit 2 are in decent condition. Based on the calculation results, it can be seen that the unit 1 load on the 110 Vdc substation battery is 770 watts, and the unit 2 load is 1540 watts.
Perancangan set meja makan minimalis berkonsep Japandi Style Nurhadi, Irvan; Susila, Dwi Agus; Ariyanto, Ariyanto
PRODUCTUM Jurnal Desain Produk (Pengetahuan dan Perancangan Produk) Vol 8, No 2 (2025)
Publisher : Institut Seni Indonesia Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24821/productum.v8i2.15450

Abstract

This research aims to design a minimalist dining table set using the Japandi style concept for the dining room. In the era of rapid growth in the global furniture industry, where the need for an efficient dining room is indispensable, the Japandi style concept was chosen for its flexibility in adjusting to the size of the space. This dining table set is designed to be modular when installed according to the user's needs, maximizing the efficiency of the dining room without compromising aesthetics. This research employs a qualitative method with a Design Thinking approach, involving five stages: empathize, define, ideate, prototype, and test. Teak wood was chosen as the primary material due to its durability and aesthetic value of its fibers. The Japandi style concept design not only meets the needs of the dining room but also supports the principle of sustainability through the use of durable and environmentally friendly materials. The results of the study show that the design with the Japandi style concept is effective in optimizing the dining room.