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Aswir Premadi
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INDONESIA
Jurnal Teknik Elektro
ISSN : 22523472     EISSN : 25988255     DOI : -
Redaksi Jurnal Teknik Elektro Institut Teknologi Padang mengundang para Peneliti, Akademisi, Praktisi dan Profesional untuk menyumbangkan karya tulisnya, di bidang Teknik Elektro, baik berupa hasil penelitian dan kajian pustaka yang belum pernah dipublikasikan sebelumnya di media lain.
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Articles 12 Documents
Search results for , issue " Vol 8, No 1 (2019): Jurnal Teknik Elektro" : 12 Documents clear
Analisa Perancangan Buck Converter Dengan Ground Terpisah (Iso-Buck) Menggunakan Matlab-Simulink Untuk Aplikasi Konverter Daya Multilevel Anugrah, Anggun
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
Publisher : ITP Press

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Abstract

Multilevel inverter is the best DC to AC power converter that was founded by experts in the field of power electronics, because it is able to provide AC voltage output with a very low Total Harmonic Distortion (THD), below 5%. However, this Multilevel Inverter is very difficult to find in the market today because there are no multilevel inverters that are able to work properly for large currents. A quite large pull current can cause voltage imbalances between inverter levels, thereby reducing inverter performance. This paper is presented as an effort to maintain multilevel inverter performance, by supporting the voltage at each regulated level so that the inverter is not affected when there is a large current pulling on the load. The technique used is to offer a Buck Converter Regulator with a separate ground (commonly known as Iso-Buck). The feasibility of this method is further analyzed using MATLAB-Simulink. The analysis shows that Iso-Buck work sufficiently and can regulate voltage well for large currents. So that it can be applied to a low-speed multi-phase permanent magnet generator energy converter.
Pengaturan Kecepatan Motor DC Pada Aplikasi Belt Konveyor Menggunakan Logika Fuzzy Berbasis MC Amalia, Sitti; M., Fadhli
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

In the industrial world, conveyors are used to moving products from one place to another, errors that often occur are instability of the conveyor caused by the given load exceeds the specified limit, so the speed of the conveyor motor drive changes speed, which can disrupt the process production. Seeing the problem above, a system of controlling motor speed is automatically designed by applying a fuzzy logic algorithm using a microcontroller. Fuzzy is used to control motor speed to maintain motor speed stability on the conveyor. While the microcontroller used by Atmega8535. The input variables used are errors and ∆ errors. Both input variables come from PWM input which is read by an optocoupler sensor. Error variable is the difference between the current motor speed and the desired motor speed (setting point) and ∆ error is the error difference with the previous error. For the success rate obtained is 90%.
Pengembangan Perancangan Smart Traffic Light Berbasis LDR Sensor Dan Timer Delay System Alfith, Alfith; Kartiria, Kartiria
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

Traffic light is a road mark that is used to regulate the smooth flow of traffic at a crossroads, by giving road users the opportunity to move alternately from each direction. This development is intended to know the working principle of a smart traffic light with a microcontroller and reduce waiting times for the porters at each intersection. When the four intersections are empty then the four intersections of lights will remain red, if at one intersection there is a vehicle then the intersection of the LDR sensor will detect the vehicle, the light will automatically be green and the other three intersections will remain red, if at one intersection and intersection two vehicles will have three intersections and four intersections will remain red and the intersections one and two will automatically turn green according to the specified delay timer, if there are vehicles at three intersections (intersections 1, 2 and 4) then the green light will launch automatically at the intersection clockwise with the specified delay, so also at the four intersections will work like ordinary light traffic with a delay determined clockwise.
Studi Evaluasi Intensitas Pencahayaan Kamar Operasi Rsup Dr.M.Djamil Padang Sesuai Standar Nasional Akreditasi Rumah Sakit (Snars) Syofian, Andi; Marlisa, Sari
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

General Hospital (RSUP) Dr. M. Djamil Padang is a class-A education hospital with the status of a Public Service Agency (BLU). As a hospital health care facility must maintain the quality of plenary services provided by medical personnel, both in terms of the quality of the physical environment and the quality of environmental health, one of them is the intensity of lighting. This study was to evaluate the intensity of lighting to minimize nosocomial infection in the operating room of Dr. M. Djamil Padang hospital based on National Standards for Hospital Accreditation by measuring directly to the study location and comparing with the results of calculations, then adjusted to Kepmenkes RI Standard number: 1204 / MENKES / SK / 2004 where for general operating rooms 300-500 lux, while for 10,000-20,000 lux operating lamps. From the measurement results and the results of calculations carried out it is known that between the intensity of the lighting with the large room is inversely proportional to the larger the room the resulting lighting intensity will be smaller, and vice versa the smaller the room the greater the intensity of lighting.
Analisa Keandalan SUTT 150 kV Berdasarkan Indeks Keadalan Sistem Transmisi Pada PT. PLN (Persero) Tragi Payakumbuh Erhaneli, Erhaneli; Hendro, Brayove
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

The electrical power system on the island of Sumatra that has been increasing from year to year due to population growth in line with economic growth have led to trasfer terjadi. Hal power from the plant to the central area of the higher load. SUTT (High Voltage Air Channel) is one medium of transmission of electrical energy the most widely used. Disturbances on the transmission line can hamper power supply of electrical energy. Disturbances on the transmission line caused by diverse causes. One cause of the disorder is lightning. This paper analyze the reliability of Line High Voltage (SUTT) 150 kV transmission system reliability index based on PT. PLN (Persero) Tragi Payakumbuh. From the calculation and analysis found that the reliability of the transmission system TLOD index is still below the target set by PLN. While the transmission system reliability index exceeded the target set TLOF PLN. And the most common cause during 2015 was the lightning that as many as 12 times with long blackouts 3, 32 hours and not channeled load of 188 160, kWH. To minimize the amount of interference that occurs is expected that the electricity providers improve maintenance schedules and improve knowledge tenetang interference caused by lightning so that energy can not be channeled minimized.
Analisa Setting Over Current Relay Pada Penyulang Banteng Gardu Induk Bukit Siguntang Noer, Mohammad; Marniati, Yessi
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

Short circuit fault current magnitude is affected by the disorder point distance, the greater distance the smaller the interference point of the fault current in short-circuited. Based on the analysis on the calculation of the value of setting TMS with existing field is still under appropriate conditions, the calculation of the value obtained at the feeders Banteng Tms OCR is 0.11 seconds while the data field is 0.1 seconds, and to the values calculated on the incoming side of the OCR TMS is 0,249 seconds while data in the field by 0.25 seconds. So also for the OCR setting on the incoming side is for the calculation of 952.63 A and for field of 1000 A. However, for the current setting of the OCR obtained at feeders is 609.125 A computed value that is much larger than the results on the field that is equal to 320 A. So it can be concluded that the existing OCR settings cannot be said to be a good setting in the field. Seen from TMS settings and current values, where the value of the setting on the feeder faster than setting the incoming. This is because if an interruption occurs, the feeders will be used to overcome the disorder so that interference can be minimized to the incoming side.
Perancangan Smart Meter Berbasis IoT Untuk Aplikasi Pembangkit Listrik Tenaga Surya Microgrid: Proposal Penelitian Hidayat, Taufal; Firmansyah, Dwiki
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

Photovoltaic (PV) Microgrid is one solution to meet the electricity demand in remote areas and is difficult to reach by the PLN. This type of PLTS has advantages over the types of off grid Photovoltaic, especially in terms of installation and financing costs. One of the challenges in the application of PLTS microgrid is the process of monitoring power and performance of PLTS. Smart meters are one of the most potential solutions to be applied to monitor solar power plants. In this study, a prototype of a smart meter system from PLTS will be designed using the Arduino micro controller as a data processing module, ESP12 module as a communication module and ACS712 sensor as a current and voltage sensor.
Analisa Pengendali Arah Putaran Motor Induksi 3 Fasa 1 KW Dengan Menggunakan Note Book Arduino Uno R3 Nurhaida, Nurhaida; Noer, Mohammad; Nofiansah, Nofiansah; Mutiar, Mutiar
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

Induction motors are widely used in industry. One example is applied to elevators used in multi-storey buildings. In its application, the elevator uses the principle of forward and reverse circuits because there are options when the elevator goes up or down. Based on the description of the above problem then designed a prototype reversal control device rotation 3k phase induction motor based on ATmega 328p microcontroller board. The entire core system is controlled by Arduino Uno R3 (Microcontroller ATmega 328p) with Visual Basic version 6.0 software. The inverting process of a three-phase induction motor based on ATmega 328p microcontroller board can simplify the equipment and can be operated from a place far enough that it tends to be more efficient and sophisticated than the conventional way.
Implementasi Sistem Payment Toll Dengan Barcode Reader Berbasis Mikrokontroler Yultrisna, Yultrisna; Antonisfia, Yul; Syofian, Andi
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

Nowadays, to pass through the toll road, mostly riders often complain that the queue is quite long and quite long. Implementing Tool for Toll Payment Systems Using a Microcontroller-based Bar Code Reader is designed to facilitate transaction processing and make the time spent in the process of using the toll road more efficient. This paper describes the process of making automatic vehicle detection devices so that drivers do not need to stop to process the toll road usage. This tool is designed using a barcode reader as input data, Ethernet shield as an internet network (local), Arduino Uno as a process controller in sending data from barcode reader into SPT application, servo motor / as a driver to automatically open the gate and Android as notification/notification for toll road users. From the results of testing all input and output functions can be performed. In testing using a toy car unit, the reading distance of the barcode with the barcode reader is ± 7cm. In this case, the system can run well and has a pretty good performance because the barcode reader can read a maximum of ± 15cm.
Pembuktian Pemakaian Alat Penghemat Daya Listrik Di Masyarakat Dengan Uji Laboratorium Marsus, Sutan; Marniati, Yessi; Suryadi, Andri; Yani, Herman
Jurnal Teknik Elektro - ITP Vol 8, No 1 (2019): Jurnal Teknik Elektro
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Abstract

The electric power saving devices work using the working principle of the capacitors, which reduces reactive power and improve the power factor in home installations. However, based on research conducted by the authors in the Electrical Laboratory at State Polytechnic of Sriwjaya Palembang, the power saving devices can not reduce reactive power and improve the power factor on the circuit. This is because the value of the capacitor to the appliance does not correspond to the value of the total load on the circuit to be repaired, if the capacitor value is too large, the capacitor itself would be a load on the circuit. In this experiment load used is inductive loads ( L ), such as transformator lamp, television, and fan with a total peak power of 402 Watt and 315 VAR reactive power. After doing the analysis and calculation, the rating value of the capacitor is needed to reduce reactive power and improve the power factor of 0.78 up to 0.9 and reduce the reactive power of 315 VAR  down to 191.77 was 8.1 μF.

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