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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro ELKHA : Jurnal Teknik Elektro BERKALA SAINSTEK Jurnal EECCIS Prosiding Semnastek e-Jurnal Arus Elektro Indonesia Journal of Energy, Mechanical, Material and Manufacturing Engineering TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Dielektrika : Jurnal Ilmiah Kajian Teori dan Aplikasi Teknik Elektro Vivabio : Jurnal Pengabdian Multidisiplin Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri CONSEN: Indonesian Journal of Community Services and Engagement Energy: Jurnal Ilmiah Ilmu-ilmu Teknik
Widyono Hadi
Department Of Electrical Engineering, University Of Jember, 68121, Indonesia
Religion Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Performance Test of Three-Phase Brushless Direct Current Motor Axial Flux with Different Diameter of Neodymium Type Permanent Magnet Nurmalia, Alif; Hadi, Widyono; Cahyadi, Widya
ELKHA : Jurnal Teknik Elektro Vol. 13 No. 1 April 2021
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v13i1.41693

Abstract

Technology that is growing rapidly and innovations that have sprung up in the electrical field today are driving the use of electricity as a source of energy to do work. Electric motor is one component that is very popular in the industrial world and households that are useful to human life. In addition to DC motors and induction motors, there are also 3 phase brushless direct current (BLDC) motors which are a type of synchronous motor where magnetic fields are produced by rotor and stator at the same frequency. The rotor is a moving part of the brushless direct current motor which is a place of permanent magnet called a pole. This paper discusses the performance of brushless direct current 3 phase axial flux motors with different diameters of neodymium type permanent magnets. Tests carried out using neodymium permanent magnets with diameters of 15mm x 2mm and 20mm x 2mm were tested without using a load and using load. The parameters used in testing motor performance include speed, torque, and motor power with a source voltage of 12V, 16V, 20V, and 24V. The test results shows that the speed value of a BLDC motor using permanent magnets with a size of 20mm x 2mm is greater than that of permanent magnets of 15mm x 2mm. The same thing applies to the value of the power produced while, for the value of torque when the motor uses a permanent magnet of 15mm x 2mm will be greater than that of a motor using a permanent magnet of 20mm x 2mm.  
Design and Construction of a 3-Phase Axial Type BLDC Generator for Wind Power Generator Hadi, Widyono; Rahardi, Gamma Aditya; Fathoni, Ahmad Nur; Pratama, Muhammad Rizal; Firdausi, Hasanur Mohammad
ELKHA : Jurnal Teknik Elektro Vol. 16 No.1 April 2024
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v16i1.75626

Abstract

The need for electrical energy in remote areas to improve community welfare must be a concern for universities. The government's ability to build new electricity sources is very minimal because it requires large infrastructure and costs, but the government continues to strive to develop new power plants. Therefore, it is necessary to strive for innovation to build power plants from renewable energy sources. There is a need to use renewable energy as an alternative to replace electrical energy which is increasingly in crisis. One alternative energy that is easy to make is energy that uses magnetic force as a model for generating electricity. Brushless Direct Current (BLDC) motors are an alternative to current DC motors. This three-phase permanent magnet axial flux generator is specially designed for vertical-type wind turbines. This generator consists of two stators and one rotor. where each stator consists of 9 coils and the magnet used is a neodymium permanent magnet. Based on test results, this generator can produce a voltage of 12.57 VDC with a wind speed of 6.84 m/s. So, it can turn on DC lights and charge DC batteries. This three-phase axial BLDC generator was tested in 3 stages, namely without load, using battery load, and DC-light load with wind conditions depending on natural conditions.
Prototype of Temperature and Humidity Control and Monitoring System in 20 Kv Cubicles Using IoT-Based PID Control Satryo Budi Utomo; Widyono Hadi; Arkan Bari Amanullah; Gamma Aditya Rahardi; Zulfa Fahrunnisa; Dananjaya Endi Pratama
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 20 No. 2 (2026)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Cubicles are key parts of electrical power distribution systems. They control, connect, and protect equipment to ensure electricity is delivered safely and efficiently. However, poor regulation of temperature and humidity in medium-voltage cubicles (20 kV) can trigger corona discharge, leading to power losses, insulation degradation, and reduced operational reliability. This study presents the design and implementation of an Internet of Things (IoT)-based automatic control system for maintaining optimal environmental conditions inside cubicles. The system integrates an ESP32 microcontroller, a DHT22 sensor for temperature and humidity measurement, a KY-037 sound sensor for detecting corona discharge, a Positive Temperature Coefficient (PTC) heater, and an exhaust fan. A Proportional-Integral-Derivative (PID) control algorithm adaptively regulates heater and fan operation based on sensor feedback. Real-time monitoring and control are achieved via a Firebase cloud database and a custom mobile application developed with MIT App Inventor. Experimental results show that the system maintains humidity stability within 64%–72% relative humidity, improving energy efficiency and effectively preventing corona discharge conditions. The proposed system enhances operational reliability and extends the service life of cubicle installations in medium-voltage applications.
Design and Testing of a Milliampere Scale Leakage Current Sensor Based on a Current Transformer for Substation Lightning Protection Gamma Aditya Rahardi; Hendra Dharma Putra; Dodi Setiabudi; Widyono Hadi; Arizal Mujibtamala; Dani Hari Tunggal Prasetiyo
ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK Vol. 16 No. 1 (2026): ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK (January-May 2026 Edition)
Publisher : Universitas Panca Marga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51747/energy.v16i1.1611

Abstract

Leakage current in lightning arresters is an important indicator of insulation conditions and protection system performance in substations, so a measurement method capable of detecting currents in milliamperes accurately and stably is required. This study aims to design and test a milliamperes-scale leakage current sensor that can be used for lightning arrester monitoring. The developed sensor is based on a current transformer with an analog signal amplification and filtering circuit, and data acquisition using a microcontroller. Testing was carried out experimentally by varying the resistive load and the number of turns, then the measurement results were compared with an AVO meter as a reference measuring instrument. The test results showed that the sensor was able to measure leakage current with a relatively low error rate, where the lowest error occurred at a load of 33 Ω and increased at larger loads due to a decrease in current. The relationship between current and load variation showed a linear characteristic with a coefficient of determination (R²) value close to 1. In addition, magnetic field analysis showed that the relative permeability value of the ferrite core was in the range of 88.4 to 98, which reflects the stability of the core's magnetic properties under various test conditions. Based on these results, the developed sensor has the potential to be used as part of a lightning arrester leakage current monitoring system to support the maintenance and reliability of the substation protection system.
Co-Authors Adi Putranto Ahmad Syuhri Ainur Rohmah Akhmad Rosid Ridlo, Akhmad Rosid Alfredo Bayu Satriya Ali Rizal Chaidir Andi Setiawan Andi Setiawan Aqila, Rista Nabilla Arizal Mujibtamala Arizal Mujibtamala Nanda Imron Arkan Bari Amanullah Azmi Saleh Bambang Sri Kaloko Bambang Supeno, Bambang Bella Octavia Nurul Hidayah Brianda Rusoneri, Gensen Catur Suko Sarwono Ceriana Eska, Andrita Dananjaya Endi Pratama Dani Hari Tunggal Prasetiyo Dodi Setiabudi Dwi Aryadi Sudibya Sihombing Eka Fitrianingsih Adelina Faisal Alif Hidayat Fajrin Nurul Qomariyah Fathoni, Ahmad Nur Fitoyo, Achmad GAMMA ADITYA RAHARDI Guido Dias Kalandro Hafifi, M Erick Lucky Hasanur Mohammad Firdausi Hendra Dharma Putra Heni Krisdiantoro Ike Fibriani Immawan Immawan Wicaksono Inta Nurkhaliza Agiska Januar Fery Irawan Jodi, Rivaldo Pratama Khikmah, Qoidatul Khoiril Khoiril M Fariz Azizi Mayang Karlia Sari Moch Ghozali, H.R.B. Mohamad Agung Prawira Negara Mohamad Choirul Anwar Muh Asnoer Laagu Nurmalia, Alif Pratama, Muhammad Rizal Pratama, Pandu Putra Raka Aji Sukmayuwana Rizqi Afif rohana Ayu Mustikasari Satrio Budi Utomo Satryo Budi Utomo Setiyawan, Hendro Rosyidi setya budi Sri Kaloko, Bambang Suhanto, Istiana Tirsi Sumardi Syuhri, Skriptyan Triwahju Hardianto Utami, Ayu Lista Vivi, Vivi Nur’anini Sutimi Wahyu Muldayani Widjonarko Widjonarko . Widya Cahyadi Yuski, Moh. Nur Zulfa Fahrunnisa