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Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika
Published by Asosiasi Riset Ilmu Teknik Indonesia
ISSN : 3031500X     EISSN : 3031349X     DOI : 10.61132
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering
open Industrial Engineering Science Cluster Research journal. This journal is a peer-reviewed and open research journal of the Engineering Science Clump
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 265 Documents
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Distribusi Sistem Kelistrikan pada PT Waagner Biro Indonesia (WBI) Siti Annisa Nindia Larasati; Mohammad Fatkhurrokhman; Siswo Wardoyo
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 4 No. 4 (2026): Juli : Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v4i4.1468

Abstract

Distribution of electricity is very important, because there’s a need for electrical energy to consumers over time. The purpose of this study is to find out how the distribution of electricity from the center to PT. Waagner Biro Indonesia and know the specifications of the distribution support panels contained in the panel room. The research methods used are observation methods, interview methods, and literature study. It can be concluded that The voltage source comes from PLN with a voltage of 20kV which is classified as medium voltage and 1,110,000 VA or 1.11 mVA which is distributed to Cubicle WBI. The distribution of electrical energy sources from PLN to the panel room will be through the PLN cubicle in the concrete substation. Incoming PLN is obtained from the MV Cubicle PLN in the concrete substation to the incoming MVMDB (Medium Voltage Main Distribution Board) via the N2XSEBY 20 kV cable with a distance of 242.5 m from the concrete substation to the incoming PLN. At Outgoing PLN connected to a step-down transformer from a voltage of 20kV lowered to 380V/220V. And the source of electrical energy received from the WBI Cubicle is 20 kV, then the source of electrical energy is stepped down from 20 kV to 380 V, then it is distributed to LVMDP.
Analisis Kualitas Produk Boomerang Table untuk Mengurangi Cacat Produksi Menggunakan Metode Six Sigma di PT XYZ Aldi Armananta; Noor Nailie Azzat
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 4 No. 4 (2026): Juli : Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v4i4.1469

Abstract

PT XYZ is a furniture manufacturing company producing Boomerang Table products. However, its production process continues to experience a relatively high defect rate, resulting in increased production costs, rework activities, and reduced customer satisfaction. Based on the 2024 production data, the defect rate reached 3.14%, with a Defects Per Million Opportunities (DPMO) value of 10,458 and a sigma level of 3.82σ. This study aims to identify the dominant types of defects, evaluate the production process capability, analyze the root causes of defects, and propose improvement strategies using the Six Sigma methodology through the DMAIC (Define, Measure, Analyze, Improve, and Control) framework. This research employed a descriptive quantitative approach with a case study design based on PT XYZ's production data collected throughout 2024. The results indicate that the dominant defects were non-conforming dimensions (38.1%), scratched surfaces (23.1%), and uneven color (14.1%). Fishbone analysis identified six major factors contributing to product defects, namely human, machine, material, method, measurement, and environmental factors. Based on these findings, several improvement initiatives were proposed, including operator training, machine calibration and preventive maintenance, standard operating procedure (SOP) revision, implementation of in-process inspection, enhancement of material quality control, and improvement of the production environment. The proposed improvements are projected to reduce the DPMO to 3,200, increase the sigma level to 4.25σ, and improve the process yield to 99.68%. The findings demonstrate that the implementation of the Six Sigma methodology is effective in improving production quality and can serve as a practical reference for continuous quality improvement in the furniture manufacturing industry.
Perancangan Sistem Kendali Motor DC Berbasis Suhu Menggunakan Logika Perangkat Keras Eric Gamaliel Gurusinga; Taruna Anugrah Lase; Noel Elpidos Bernard
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 4 No. 4 (2026): Juli : Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v4i4.1479

Abstract

This study aims to design and simulate a temperature-based three-level DC motor speed control system using non-programmable hardware logic as an alternative that does not depend on a microcontroller. The system is built through a step-by-step circuit, namely the LM35 temperature sensor detects changes in environmental temperature, the signal is conditioned by an LM358 operational amplifier with a non-inverting configuration and a gain of 3.2 times, then digitized by an ADC0804 type Analog-to-Digital Converter (ADC) with a resolution of 10 mV/LSB, and translated by a 3-to-8 line 74HC238 decoder to activate three relays that regulate the external resistance of the motor drive. Testing is carried out through simulations on Proteus VSM software with temperature variations of 25°C to 80°C. Simulation results show that the system is able to maintain standby mode below 30°C and gradually switch to Level 1 (2340 RPM), Level 2 (2800 RPM), and Level 3 (3500 RPM) according to the set temperature threshold, with the entire signal path from the sensor to the relay actuation operating synchronously without any program code intervention. The back EMF also affects the actual terminal voltage of the motor, but the stability of the speed transition is maintained at each level. This study proves that the non-programmable hardware logic approach is feasible as a reliable and simple temperature control solution.
Pengujian Fungsionalitas Aplikasi Shopee Menggunakan Metode Black Box Testing dengan Penerapan Teknik Decision Table Testing pada Fitur Checkout Maulina Mukaromah; Aliya Ratna Ningrum; Dina Hermawati; Chiekan Denanta Alviani; Muhammad Nurfauzi Sahono
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 4 No. 4 (2026): Juli : Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v4i4.1490

Abstract

The checkout feature in e-commerce applications is a critical component that integrates several business processes, ranging from shipping-address validation to payment-method authorization. Functional failures at this stage can significantly reduce transaction conversion rates and erode user trust, particularly because the reliability of digital payment processing is one of the main factors shaping consumer confidence toward e-commerce platforms. This study aims to test the functionality of the checkout feature of the Shopee application using the Black Box Testing approach, specifically the Decision Table Testing technique. This technique was chosen for its ability to systematically map complex condition combinations, and it has been shown to be effective for testing rule-based logic across various types of systems. The testing focused on three main conditions, namely address validation, payment method, and product stock availability, producing eight rule combinations derived from three binary conditions. The results show that Decision Table Testing successfully uncovered functional bugs in certain transactional scenarios, especially in double negative condition combinations that are difficult to detect using single-condition techniques such as Equivalence Partitioning, thereby providing valid improvement recommendations to preserve user transaction comfort and experience.
Analisis Urutan Fasa dan Arus Start pada Mode Forward Motor Induksi Tiga Fasa dengan Starter Direct Online dan Star-Delta Wiwit Santoso; Wawan Gunawan; Yogi Priyo Istiyono; Aripin Triyanto
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 4 No. 4 (2026): Juli : Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informat
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v4i4.1496

Abstract

Three-phase induction motors have the drawback of high starting currents, reaching 5 to 7 times the rated current, which can potentially interfere with other equipment on the same circuit. This study aims to design a trainer kit, analyse phase sequences, and compare the starting currents of three-phase induction motors using the DOL and Star-Delta starting methods in forward mode. The experimental method was implemented by assembling a trainer kit with components such as an MCB, contactor, TOR, and TDR. Testing involved measuring the phase sequence using a Phase Rotation Tester and the starting current using an ampere clamp with varying DC injection braking loads of 0–200 VDC. The results show that the trainer kit functions optimally, with the phase sequence of the power source and the motor in forward mode (R-S-T) rotating clockwise (CW). In the analysis of starting current, the Star-Delta starting method was shown to significantly reduce current surges compared to the DOL starting method. Under no-load conditions at 0 VDC, the Star-Delta method reduced the starting current by 65.98%, from 0.97 A to 0.33 A. However, at a maximum load of 200 VDC, the reduction effectiveness decreased to 31.10%, from 2.99 A to 2.06 A. Star-Delta starting is highly effective at reducing starting current, although its effectiveness decreases as the motor’s mechanical load increases.

Page 27 of 27 | Total Record : 265

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