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All Journal Tekno - Pedagogi : Jurnal Teknologi Pendidikan Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi El-kahfi : Journal of Islamic economics Profesi | Jurnal Ilmu Pendidikan dan Keguruan IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Cosmic Jurnal Teknik
Karti, Karti
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Journal : IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)

 1 
Studi Kasus: Dampak Panjang Kabel Penghantar terhadap Drop Tegangan dalam Distribusi Daya dari Generator ke Motor Induksi 3 Fasa di Unit Screw Press PTP Nusantara II Sawit Hulu Tambunan, Bayu Hillam Saputra; Karti, Karti
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 3 (2023): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i3.71

Abstract

Voltage drop is the amount of voltage lost in a conductor. The voltage drop on electric power lines is generally directly proportional to the length of the line and the load and inversely proportional to the cross-sectional area of the conductor. The magnitude of the voltage drop is expressed either in percent or in Volts. The analysis determines the voltage drop in the power distribution from the generator to the three-phase induction motor at PT. Perkebunan Nusantara II Sawit Hulu uses 30 meters of copper conductor cable with a cross-sectional area of 400 mm2. This type of copper wire material has an absolute sending voltage value of 389 volts and a total receiving voltage value of 385. So there is a voltage drop based on the length of the conducting cable of 4 Volts, and if it is a percentage, the voltage drop value is 1.03%.
Analisis Tegangan dan Arus DC pada Busbar Menuju Plat Anoda dan Katoda dalam Proses Elektrolisis di Unit Chemical Plant PT. Toba Pulp Lestari, Tbk Napitupulu, Natanael; Karti, Karti
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 1 (2024): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i1.92

Abstract

This electrolysis cell is used to convert sodium hydroxide into sodium chloride. This study aims to measure the voltage and DC passing through the cathode and anode plates during the electrolysis process. The power source used in this process provides a DC voltage of 70 volts, a DC of 8 A, and a resistance of 8.75 Ω. The sodium hydroxide solution can be transformed into sodium chloride at PT with this current and voltage. Toba Pulp Lestari Tbk, Porsea, is in the chemical plant unit, and this electrolysis cell operates optimally. It produces a significant amount of sodium chloride, used as a compound in making paper pulp. The analysis results indicate that the types of anode and cathode plates effectively conduct electricity in the electrolysis cell, aided by busbars as conductors.
Tindakan Corrective Maintenance pada Penggantian Poros Elektro Motor yang Patah Akibat Beban Berlebih di Mesin Separator PT. Hutahaean Karti, Karti; Nainggolan, Geo Peterson
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 3 (2024): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i3.159

Abstract

This research discusses the replacement of a broken motor shaft due to overload as a Corrective Maintenance action on the separator unit at PT. Hutahaean, Tapioca Factory. The objective of this research is to understand the Standard Operating Procedure (SOP) for replacing a broken motor shaft and to apply preventive steps to avoid further damage to the electric motor in the separator unit. The electric motor plays a crucial role in driving the separator machine, especially in the separation process of tapioca starch. Overloading led to the breakage of the motor shaft, disrupting the production flow. This study demonstrates that effective Corrective Maintenance can restore the machine's optimal function and reduce production downtime. The findings also highlight the importance of routine maintenance of machine components to prevent future severe damages.
Co-Authors Abdillah Abdillah Damayanti, Roza Darmadi, Herry Dewi Tresnawati Fatih Abdillah, Muhammad Hutagalung, Manahan Kresnapatty, Duva Kurnia, Dian Lukman Hakim Lumbantoruan, Sorta Murhaban Murhaban Nainggolan, Geo Peterson Napitupulu, Natanael Nurya Savitri, Agustin Rahma Melati, Tri Savitri, Agustin Nurya Siregar, Muhammad Iqbal Harapan Muslim Sitorus, Kevin Salomo Tambunan, Bayu Hillam Saputra Wahyu Saputra YANTO YANTO Zikrifah, Amelia