cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Yudhi Ardiyanto
Contact Email
yudhi.ardiyanto@umy.ac.id
Phone
-
Journal Mail Official
ramadoni@umy.ac.id
Editorial Address
-
Location
Kab. bantul,
Daerah istimewa yogyakarta
INDONESIA
Journal of Electrical Technology UMY
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 25501186     EISSN : 25806823     DOI : 10.18196/jet
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Library & Information Science
The Journal of Electrical Technology UMY (JET-UMY) is a peer-reviewed journal that publishes original theoretical and applied papers on all aspects of Electrical, Electronics, and Computer Engineering.
Arjuna Subject : -
Articles 115 Documents
 6   7   8   9   10 
Reliability Analysis of Power Distribution System Ali, Khaidir; Wiyagi, Rama Okta; Syahputra, Ramadoni
Journal of Electrical Technology UMY Vol 1, No 2 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1209

Abstract

Electrical distribution system is a component of electrical power system that is very important because it is closest to the customer. In its operation, the distribution system often suffers that causes the flow of electricity to the customer is interrupted. This situation is not expected by customers or by electric power companies. The more frequent and longer the occurrence of electrical power flow interruption, the lower the system reliability, and vice versa. Reliability of a distribution system can be analyzed based on SAIDI and SAIFI parameters. In this research, reliability analysis of distribution system on Gejayan substation. The analysis result using SAIDI and SAIFI parameters shows that Gejayan substation is reliable enough to national standard, while based on international standard still not reliable.
Energy Efficiency Through Lighting and Cooling System Approach Mujaahid, Faaris; Mustika, Doane Puri; Syahputra, Ramadoni; Putra, Karisma Trinanda; Purwanto, Kunnu
Journal of Electrical Technology UMY Vol 2, No 1 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2127

Abstract

This work reports the implementation of using energy efficient electronic devices to reduce the electricity consumption in Universitas Muhammadiyah Yogyakarta (UMY). The first step taken by UMY is to replace lighting and cooling system in all its rooms using energy saving devices. This research was conducted in building E4. This research was conducted by surveying the designated building to get data about lighting and air conditioner devices used in the E4 building. If the proposed concept is applied to lighting and cooling system, UMY would be able to reduce electricity consumption by 28.1 MWh, and this can support the breakthrough of turning UMY into a green campus.
Microcontroller Based Automatic Calculation of Ideal Weight Body Mustar, Muhamad Yusvin; Chamim, Anna Nur Nazilah; Putra, Karisma Trinanda; Nugraha, Vendy Dwi Hendra; Jusman, Yessi
Journal of Electrical Technology UMY Vol 2, No 4 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2443

Abstract

The development of science and technology is increasing every day, especially in the field of electronics and control systems. This is marked by the rapid progress that has occurred with the creation of increasingly sophisticated electronic devices and all systems have gone from conventional to automatic. Many benefits are obtained from the rapid development in the field of electronics and control systems including being able to assist humans in completing their tasks, increasing human productivity, and increasing the level of effectiveness in doing work. Departing from this, then in this study designed an automatic body ideal value calculation tool that is controlled by a microcontroller chip using C language programming. This study provides another alternative in measuring mass values, height values, and displaying a BMI (Body Mass Index) ) subject automatically. The working system is quite easy where the subject only climbs the scales, the height measuring device with ultrasonic sensors PING)) will work to measure the subject's height, the scales equipped with the HX711 module will measure the mass value of the subject. Then, the microcontroller will process the height value, and the mass value of the subject to calculate the subject's BMI
Analysis of Reliability-based Systems of 20kv Distribution Network Disturbance on PT. PLN Rayon Panam Suripto, Slamet; Putra, Karisma Trinanda; Jusman, Yessi; Aroffi, Muhammad Rusydi Al; Jamaaluddin, Jamaaluddin
Journal of Electrical Technology UMY Vol 3, No 3 (2019): September
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3359

Abstract

Electricity needs for each year has increased, this is due to an increase in people's lives. Reliability is an important factor in the operation of distribution system and is an important factor in the continuity of the waiter to the consumer. Several parameters are used as reference to megukur level of reliability of a distribution system that is SAIFI (avarage interuption of frequency index system) is a calculation of the number of failures or disruptions average - average one year, SAIDI (System of interruption Duration Index) index median duration - average system interruption during the year. In this study was also performed calculations eens (Expected Energy Not Supplied) This calculation is done because of disturbance at each feeder there is energy that can not be channeled, it can happen losses. Based on the calculation and analysis that the reliability index is obtained there are some feeder Rayon Panam categorized as not reliable because it has a high SAIFI value not in accordance with the target SPLN No. 68-2 1986 and IEEE std 1366-2003. Energy losses that can not be distributed annually sizeable each feeder. This indicates a feeder located at Panam Rayon considered less reliable, to the need for repairs and maintenance
Implementation of Automatic Transfer Switch on the Solar Home System at the Goat Farm Houses Chamim, Anna Nur Nazilah; Peggy Irawan, Agil; Syahputra, Ramadoni
Journal of Electrical Technology UMY Vol 4, No 2 (2020): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.v4i2.10680

Abstract

In Pirak Mertosutan Hamlet, Sleman, Yogyakarta, there is a goat farm complex with about 600 m2. The intricate lighting comes from the National Electricity Company (PLN) and the Solar Home System (SHS). SHS is the primary energy source for lighting, while PLN is a secondary energy source that replaces it when the power supply from SHS goes out. So far, the transfer from SHS to PLN has been carried out by humans. This fact is considered inefficient because the SHS supply does not always die during the day. At night, the officers who move the difficulties have to go to the cage complex located relatively far from residential areas. To facilitate the transfer of energy sources from SHS to PLN and vice versa. It does not need to be done by officers. It is necessary to automatically install a means to automatically move the two sources automatically. This tool is the Automatic Transfer Switch (ATS). This tool can move the energy supply from SHS to PLN and vice versa. By considering the specifications used in the SHS in the farm complex, the ATS is made and then installed in the farm complex. After the installation is carried out, the functional test is carried out. The ATS installation test results show that the ATS can work according to the design; namely, when the SHS is off, the source used is automatically switched to PLN. When the SHS is on, the source that was using PLN will automatically switch to SHS.
Development of User Interface Based on LabVIEW for Unmanned Aircraft Application Faaris Mujaahid; Amir Malik Hizbullah; Febrian Dhimas Syahfitra; Muhammad Abduh Dahlan; Nugroho Dwi Juliansyah
Journal of Electrical Technology UMY Vol 1, No 2 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1214

Abstract

This paper describes the user interface construction of rocket/aircraft condition monitoring systems on LabVIEW, a graphical-based programming language. The interface, placed in the ground station, has some important information transmitted from the rocket. The information contains real-time data from the sensor devices. The aim of the construction of this interface is that the operator in the ground station can monitor the behavior and the condition of the flying rocket, in regard to the self-control mechanism programmed within the rocket. The LabVIEW front panel includes the visualization of 3D rocket motion, accelerometer-graph, gyroscope-graph, rocket navigation, GPS positioning, altitude, and pressure-meter. The result proved that the data transmission was recorded properly to the front panel system and logbook. In addition to the result, the reliability test has 50% probability to the system performance with the given test period of 300 seconds and 600 seconds. The low reliability result might be caused by the size of buffer overflow between the hardware and LabVIEW.
Power Transformer Loading Analysis in Order to Improve the Reliability of a Substation Syahputra, Ramadoni; Arrozak, Loudy Fajar
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1422

Abstract

This paper presents the power transformer loading analysis in order to improve the reliability of a substation. The substation that was the location of the study was the 150/20 KV Kentungan Substation, Sleman, Yogyakarta Special Region. Power transformers are the most important electrical equipment in a substation. The power transformer functions as a provider of electrical energy that has been transmitted from the power plant to then be channeled to electricity loads. In its operational it is very important to know the capacity and capacity of power transformers in serving electric loads for decades to come, with the aim that the electric power service can take place well. Therefore, the forecasting of the power transformer is important to know in the framework of the operational planning of a good substation. The results of the study indicate that the peak load of power transformers in the period 2014 to 2016 is still in a safe level, where the maximum peak load is 93% of the total capacity of the transformer. However, it is recommended that the power transformer capacity be planned to begin to anticipate the growth of loads in the coming years.
Analysis of Losses of propulsion systems on Electric Diesel Rail Trains Jamal, Agus; Chamim, Anna Nur Nazilah; Putra, Karisma Trinanda; Masfiyah, Nisfi Nurlailatul; Jusman, Yessi
Journal of Electrical Technology UMY Vol 2, No 3 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2338

Abstract

Train is one of transportation which supports the mobilization of society. Futhermore, it is affordable and comfortable so that people prefer using it. One of trains which is usually used by many people is KRDE or electric diesel railway, which is an innovation of technology in PT. INKA based on railway industry. It is one of railway that need electricity as the main source of energy that comes from alternator. it will handle all power of load needs on KRDE like as propulsion and auxiliary load. Therefore, the fluency of KRDE is affected by electrical system of the railway, which is mostly affected by propulsion load because it needs bigger power than auxiliary load. In this research presents about losses calculation on KRDE that are Three- phase rectifier, Variable Voltage Variable Frequency (VVVF) inverter and Three phase induction motor. Three phase rectifier and VVVF inverter will simulated by PSIM software to understand how the circuit work. The results of this research are explain about the number of loss energy in three phase rectifier is 21,6 Watt. In VVVF inverter and three induction motor, there are five samples. From analysis of the samples result that VVVF inverter has the highest efficiency 95,53% with loss energy 19,992 KW, which on 645 Volt about output voltage and 90 Hz about output frequency. In three phase induction motor, 91, 426% is the highest efficiency and it has 18,211 KW at loss energy, which on 635 Volt about input voltage and 36,38 Hz about input frequency. Then, the highest efficiency of propulsion system is 94,59% and 53,38 KW about loss energy, which on 635 Volt about input voltage and 36,38 Hz about input frequency in induction motor.
Analysis of Power Transformer Insulation: A Case Study in 150 kV Bantul Substation Hidayat, Arief Rahman; Jamal, Agus; Chamim, Anna Nur Nazilah; Syahputra, Ramadoni; Jeckson, Jeckson
Journal of Electrical Technology UMY Vol 3, No 2 (2019): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3254

Abstract

Insulation of the transformer is one of the essential components. So that the quality of the resistance in the isolation of the transformer is essential to note the condition, in order to find out the condition of the transformer isolation, several tests must be performed, namely the polarization index, delta tangent, and break down voltage. In this study, all three tests were carried out on Transformer 1 in the 150 kV Bantul substation. Polarization index testing itself is testing the leakage current on the transformer isolation by comparing the test results for 1 minute with the results of the 10-minute drive test. While delta tangent is testing capacitive leakage current in the isolation transformer, and break down voltage is a test of the ability of the breakdown voltage in transformer insulation oil. Based on the results of the analysis, it can be seen that the value of the transformer polarization index in 2016 and 2018, the average value between the windings has been in the rating of 1.25-2.0. As for the delta tangent test results in 2016 and 2018, the value between the capacitive parts is already in the rating of 0.18% -0.36%. For the breakdown voltage test results in 2016 and 2018, the average breakdown voltage value is 43.9 kV/mm - 65.5 kV/mm. From these data, it can be concluded that the transformer isolation conditions in 2016 and 2018 are in good condition, although there was a decline in the transformer isolation conditions in 2016. However, the National Electric Company has made repairs and maintenance of the isolation transformer. This is seen due to an increase in the quality of transformer insulation in 2018. Repair and maintenance of transformer insulation are done to maximize the work system and the life of the transformer.
Simulation of ATMEGA8 Microcontroller-Based Schizophrenia Patient Detector Loniza, Erika; Utami, Anugrah; Safitri, Meilia; Ermawati, Yuli
Journal of Electrical Technology UMY Vol 4, No 1 (2020): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet umy.v4i1.9641

Abstract

Schizophrenia is a chronic mental disorder causing sufferers experiencing delusions, hallucinations, thoughts distracting, and behavior changing. This condition that usually lasts a long time is often interpreted as a mental disorder, given the difficulty of the patient to distinguish between reality and one's mind. The purpose of this study is to facilitate nurses when doing care, especially in the inpatient room, and so that care is more intensive. By using the magnetic sensor as a detector when the door is open, and the PIR (Passive Infrared Receiver) sensor as a detection of the patients flew motion, and the lamp as an indicator. The results of the data can be obtained from testing by calculating the distance if the sensor can detect. The testing results the device it is proven that the magnetic sensor can detect up to 1 cm, and the PIR sensor can detect up to 5,5 meters.

Page 8 of 12 | Total Record : 115

 6   7   8   9   10 

Filter by Year

2017 2024


Reset
Filter By Issues
All Issue Vol. 8 No. 2 (2024): December Vol 8, No 1 (2024): June Vol 7, No 2 (2023): December Vol 7, No 1 (2023): June Vol 6, No 2 (2022): December Vol 6, No 1 (2022): June Vol 5, No 2 (2021): December Vol 5, No 1 (2021): June Vol 4, No 2 (2020): December Vol 4, No 1 (2020): June Vol 3, No 4 (2019): December Vol 3, No 3 (2019): September Vol 3, No 2 (2019): June Vol 3, No 1 (2019): March Vol 2, No 4 (2018) Vol 2, No 3 (2018) Vol 2, No 2 (2018) Vol 2, No 1 (2018) Vol 1, No 4 (2017) Vol 1, No 3 (2017) Vol 1, No 2 (2017) Vol 1, No 1 (2017) More Issue