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Prodi Teknik Elektro, Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah Jl. AR Hakim No. 150 Surabaya
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J-Eltrik
Published by Universitas Hang Tuah
ISSN : 26569388     EISSN : 26569396     DOI : http://dx.doi.org/10.30649/j-eltrik.v2i2
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering
J-Eltrik merupakan jurnal Teknik Elektro yang terbit secara berkala dua kali dalam setahun. Diterbitkan oleh Prodi Teknik Elektro, Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah Surabaya. Scope J-Eltrik tentang hasi riset dibidang Elektronika, Listrik (Elektro), Telekomunikasi, Komputer, Informatika, Sistem Kontrol. Redaksi menerima hasil penelitian atau artikel ilmiah dari para intelektual, dosen, praktisi dan mahasiswa. Proses peer review dilaksanakan oleh reviewer dan redaksi untuk memperbaiki format artikel sesuai format penulisan J-Eltrik tanpa mengubah tujuan dan isinya.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 5 Documents
 1 
Search results for , issue "Vol 7 No 2 (2025): November" : 5 Documents clear
ANALISIS VARIASI FREKUENSI DAN PEMBEBANAN TERHADAP EFISIENSI MOTOR INDUKSI 3-FASA Kristiawan, Irfan
J-Eltrik Vol 7 No 2 (2025): November
Publisher : Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/je.v7i2.151

Abstract

In the modern industrial era, regulation or control is required in operating 3-phase induction motors. Regulation or control of 3-phase induction motors is to assist production activities in the industry, so that production activities can run according to the company's functions or objectives. There are two ways to regulate the rotational speed of a 3-phase induction motor. The first way is by changing the number of poles on the induction motor. Then the second way is by utilizing the Variable Frequency Drive (VFD) function. This method is quite effective and widely used in modern industries because the motor speed can be controlled according to the required needs by adjusting the frequency input to the 3-phase induction motor. This study aims to determine the effect of changes in frequency and also changes in loading on the efficiency of 3-phase induction motors. The results of the study will be used as guidelines or technical recommendations to regulate the ideal frequency of the 3-phase induction motor in the embossing machine of PT. Hisamitsu Pharma Indonesia, so that the machine can operate effectively and efficiently. The methods used in this study are direct experiments and data analysis. Key words: 3 Phase Induction Motor, Variable Frequency Drive, Frequency, Efficiency
a Design of a Contactor-Based Automatic Transfer Switch Control System for Two Houses Using a Single Generator as a Backup Power System Sanda Agung, Rachmad Mohammad
J-Eltrik Vol 7 No 2 (2025): November
Publisher : Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/je.v7i2.158

Abstract

The availability of electricity from the State Electricity Company (Perusahaan Listrik Negara, PLN) as the primary power source greatly influences the fulfillment of the community’s electrical energy needs. However, the electricity supply from PLN is not always stable or continuously available. Under certain conditions, power outages may occur due to disturbances in the electrical power system. Therefore, when a power outage occurs, a power supply transfer system from the main source (PLN) to a backup source is required to maintain the continuity of electrical power supply. This system functions as a backup to the PLN power supply and consists of a series of electrical components capable of regulating the power transfer process automatically. This system is known as an Automatic Transfer Switch (ATS), which operates automatically through the control of contactors and timers. This study produced a prototype of an ATS system based on contactor and timer control. The objective of this research is to design and implement an ATS control system using contactors and timers for two houses supplied by a single generator as a backup system. The test results show that the contactor- and timer-based ATS system for two houses with one generator as a backup system operates in accordance with the objectives of the study.
Analisa Rangkaian Active High Pass Filter Orde 1 dan Orde 2 Topology Sallenkey Taking, Ahmad; Mulyadi, Mulyadi
J-Eltrik Vol 7 No 2 (2025): November
Publisher : Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/je.v7i2.161

Abstract

A filter is defined as an electrical circuit or network designed to pass or direct alternating current signals generated at certain frequencies while blocking or attenuating all alternating current signals generated at other frequencies. Filters can be classified as analog or digital, passive or active, and audio frequency (AF) or radio frequency (RF) filters. Analog filters are designed to process analog signals, whereas digital filters process analog signals using digital techniques. Depending on the type of elements used in the circuit, filters are categorized into active filters and passive filters. Passive elements include resistors, capacitors, and inductors. Active filters are equipped with transistors or operational amplifiers (op-amps) in addition to resistors and capacitors. The type of element used is determined by the operating frequency range of the circuit. For example, RC filters are generally used for audio or low-frequency operations. In the design of a high-pass filter system, the Sallen-Key topology of first-order and second-order configurations is used, which functions as a building block for implementing higher-order active filters
Implementasi Sistem Hybrid Photovoltaic–Thermoelectric Generator sebagai Sumber Energi Listrik pada Kapal Nelayan Rahmawati, Maulidiah; Hazami, Faiq Rasyad
J-Eltrik Vol 7 No 2 (2025): November
Publisher : Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/je.v7i2.162

Abstract

Electrical energy systems on small-fishing-vessels are still predominantly dependent on fossil-fuel-based generators, resulting in high fuel consumption and environmental emissions. This study aims to implement a hybrid photovoltaic–thermoelectric generator (PV–TEG) system as an additional electrical energy source for fishing-vessels by utilizing solar energy and diesel engine waste heat. The research employed a quantitative experimental approach through the development of a hybrid prototype consisting of a 20 WP photovoltaic module, four SP1848-27145-SA thermoelectric generator modules, a buck-boost converter, and a 12 V battery. Field testing was conducted on a diesel-powered fishing-vessel in the Suramadu coastal area, Surabaya, under two experimental scenarios with a 6-hour observation period from 09:00 to 15:00 WIB. The evaluated parameters included photovoltaic voltage, thermoelectric generator voltage, temperature difference (), and hybrid system output power. The results showed that the photovoltaic system produced an average voltage of 20.00 V during the first test and 20.63 V during the second test. The thermoelectric generator achieved a maximum output voltage of 6.3 V at a temperature difference of 47.3°C. The implementation of the hybrid PV–TEG system increased output power from 14.46 W to 17.28 W during the first test, representing a 19.50% improvement, while during the second test the output power increased from 41.15 W to 48.72 W, corresponding to an 18.40% improvement. These findings demonstrate that the integration of photovoltaic and thermoelectric generator systems can improve the continuity of electrical power supply on fishing-vessels through simultaneous utilization of solar energy and diesel engine waste heat.
Rencang Bangun Alat Pendeteksi Aroma Urine untuk Fasilitas Umum pada Panti Jompo Wahyudi, Hendi Nur; Mulyadi, Mulyadi
J-Eltrik Vol 7 No 2 (2025): November
Publisher : Fakultas Teknik dan Ilmu Kelautan, Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/je.v7i2.163

Abstract

The cleanliness of toilet facilities in nursing homes is an important factor in maintaining comfort, health, and environmental hygiene for the residents. Urine odor that is not immediately cleaned can cause discomfort and reduce the quality of sanitation in public facilities. This study aims to design and develop a urine odor detection device based on an automation system to help maintain toilet cleanliness in nursing homes. The designed system uses an ammonia gas sensor to detect urine odor, a PIR (Passive Infrared Receiver) sensor to detect user presence, LED lights for automatic lighting, and a water pump for an automatic flushing system. The research method used was an experimental method through hardware design, microcontroller programming, sensor testing, and system performance analysis. The results showed that the system worked properly through two automation features, namely automatic lighting and automatic flushing. The PIR sensor was able to automatically turn on the LED lights when detecting the presence of an object, making the toilet brighter and indicating that the toilet was being used. In addition, the ammonia gas sensor was able to detect urine odor and activate the water pump to automatically flush the toilet. The water pump stopped operating when ammonia gas was no longer detected. The designed system can help maintain toilet cleanliness, reduce unpleasant odors, and improve the efficiency of water and electrical energy usage in public facilities at nursing homes.

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