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All Journal Bumi Lestari Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Elektrika Borneo
Sudirman Syam
Jurusan Teknik Elektro, Fakultas Sains Dan Teknik, Universitas Nusa Cendana, Kupang, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Public Health Social Sciences

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ANALISIS EFISIENSI KELUARAN DAYA SOLAR SEL BERDASARKAN SUDUT KEMIRINGAN Sri Kurniati; Sudirman Sudirman
Jurnal Media Elektro Vol 1 No 3 (2013): April 2013
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.6267

Abstract

This study aims to analyze the efficiency of solar cells based on elevation angle. In this system installed panel of 100 Wp solar cells, electrical energy for charging the battery 140 Ah, and a inverter 1300 Watt to turn on the fluorescent lights and the supply of energy resources. The method used is to experiment with the adjust the angle elevation of solar panels in the charging battery cells. The results showed the maximum capacity of the electric power that is able to operate in the application of 350 Watt with elevation position 25O.
PENGARUH VARIASI PENAMBAHAN LAPISAN MAGNET DAN JARAK CELAH UDARA ROTOR TERHADAP KINERJA MOTOR DC MAGNET PERMANEN Sri Kurniati; Sudirman Syam
Jurnal Media Elektro Vol 11 No 1 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.6497

Abstract

A rectangular NdFeB permanent magnet DC motor design has been made and tested experimentally. The use of rectangular permanent magnet rotor teeth made in layers aims to increase the torque of the DC motor. Measurement and testing of DC motor force and torque using a spring balance. In addition, the adjustment of the air gap and the addition of a magnetic layer were carried out to determine the performance of a DC motor with varying rotation. This DC motor design has eight poles with 150 turns per coil and an arrangement of 1-4 layers of permanent magnets with an air gap of 1-4 mm. The results showed that the more layers of permanent magnets with a smaller rotor and stator magnetic air gap, the greater the torque. In measuring the motor's torque with four layers of permanent magnets for an air gap of 1 mm with a field voltage of 50 Volts, the electrical-torque is 0.6910 N-m, and the mechanical-torque is 0.027 N-m at a speed of 780 Rpm. Then at a voltage of 60 Volts with the same air gap distance, an electrical-torque of 0.085 N-m is obtained and a mechanical-torque of 0.0293 with a speed of 860 rpm
PENGARUH VARIASI PENAMBAHAN LAPISAN MAGNET DAN JARAK CELAH UDARA ROTOR TERHADAP KINERJA MOTOR DC MAGNET PERMANEN Sri Kurniati; Sudirman Syam
Jurnal Media Elektro Vol 11 No 1 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.6497

Abstract

A rectangular NdFeB permanent magnet DC motor design has been made and tested experimentally. The use of rectangular permanent magnet rotor teeth made in layers aims to increase the torque of the DC motor. Measurement and testing of DC motor force and torque using a spring balance. In addition, the adjustment of the air gap and the addition of a magnetic layer were carried out to determine the performance of a DC motor with varying rotation. This DC motor design has eight poles with 150 turns per coil and an arrangement of 1-4 layers of permanent magnets with an air gap of 1-4 mm. The results showed that the more layers of permanent magnets with a smaller rotor and stator magnetic air gap, the greater the torque. In measuring the motor's torque with four layers of permanent magnets for an air gap of 1 mm with a field voltage of 50 Volts, the electrical-torque is 0.6910 N-m, and the mechanical-torque is 0.027 N-m at a speed of 780 Rpm. Then at a voltage of 60 Volts with the same air gap distance, an electrical-torque of 0.085 N-m is obtained and a mechanical-torque of 0.0293 with a speed of 860 rpm
RANCANG BANGUN SISTEM PROTEKSI DAN MONITORING ARUS DAN TEGANGAN LEBIH BERBASIS TELEGRAM Nursalim Nursalim; Wellem F. Galla; Sudirman Syam; Sri Kurniati A
Jurnal Media Elektro Vol 11 No 2 (2022): Oktober 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.8241

Abstract

The electrical protection system is designed with the aim of preventing or reducing damage due to interference on equipment that is traversed by short circuit currents, in addition, with a protection system, the undisturbed area can be minimized as small as possible. In a house, a Miniature Circuit Breaker (MCB) is usually used as a means of protection to break the short circuit current that occurs. However, an MCB has limitations including it cannot be controlled from a certain distance, so if the MCB is to reconnect after it has worked, the user must raise the lever manually. The purpose of this research is to make an electrical protection device for household use that can be controlled and monitored remotely. This system is built using the esp module. 8266, pzem-004t sensor and solid state relay by utilizing the telegram application as control and notification. The test results show that the values ​​of current and voltage as well as electrical power can be displayed by smartphone users via the telegram application by using certain commands according to what has been programmed.
ACTIVE FILTER PERFORMANCE IMPROVEMENT ON SINGLE-PHASE RECTIFIER CONTROLLED BY USING PULSE WIDTH MODULATION (PWM) Sudirman Syam; Sri Kurniati
Jurnal Media Elektro Vol 12 No 1 (2023): April 2023
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v0i0.10005

Abstract

Various commutation techniques, such as forced commutation, ignition angle control, and symmetrical angle control, have been developed to improve the input power factor and harmonic level. However, all of these techniques will produce only one pulse per half cycle of the converter input current, and consequently, the lowest order harmonic is the third harmonic. A comparative study of active filter converters between single pulse and PWM control has been investigated. Both converters are given identical R and RL loads to compare power factor (PF) and Total Harmonic Distortion (THD). The method used is a simulation with the PSPICE program. The performance of both rectifiers is evaluated based on the input current waveform, THD, and PF. At RL load, the input current distortion decreases drastically, with a THD of 100.67%. In PWM control, harmonics are reduced with a THD of 25.48%. The rectifier power factor in the active filter obtained PF of 0.25, whereas in PWM control, PF increased by 0.65.
Co-Authors , Sri Kurniati A Beby H.A. Manafe Daniel Adutae Febri Lumban Bantoruan Hendro FJ Lami Jauhari Effendi Jauhari Effendi Johanis F.M Bowakh M. Ikram A. Arifin Nursalim Nursalim Ruslan Wirosoedarmo Silvester Tena Sri Kurniati A Sri Kurniati, Sri Wellem F. Galla