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INDONESIA
JREC (Journal of Electrical and Electronics)
Published by Universitas Islam 45 Bekasi
ISSN : 23025883     EISSN : 25500899     DOI : -
Core Subject : Engineering,
Electrical & Electronics Engineering
Arjuna Subject : -
Articles 262 Documents
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Alat Perajang Pisang Berbasis Arduino Mega 2560 M. Daryono; Setyo Supratno; Seta Samsiana
JREC (Journal of Electrical and Electronics) Vol. 7 No. 1 (2019): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

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Abstract

Rancang bangun alat pada penelitian ini merupakan pengembangan dari alat perajang pisang manual kearah otomatisasi dengan menggunakan arduino mega 2560 sebagai pengendali perangkat elektronik yangdigunakan seperti Motor Stepper, Driver L298N, Push Button, LCD 1602 sehingga dapat bekerja sesuai denganyang diinginkan. Dimana output dari alat berupa ketebalan yang dikategorikan menjadi 3 yaitu tipis, sedang dantebal. Dari hasil percobaan sebanyak 10 kali tiap kategori diperoleh nilai error hasil perajangan sebagai berikut,pada perajangan kategori tipis dengan nilai error sebesar 5%, pada perajangan kategori sedang dengan nilai errorsebesar 8% dan dikategori perajangan tebal dengan nilai error sebesar 8,6%.
Pengujian Dissolved Gas Analysis (DGA) Pada Trafo Tenaga 150/20kv 60mva Di Gardu Induk Tambun Syahril Shidiq; Aeri Sujatmiko; Abdul Hafid Paronda
JREC (Journal of Electrical and Electronics) Vol. 7 No. 1 (2019): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

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Abstract

Penelitian ini bertujuan untuk mengidentifikasi penyebab gangguan pada transformator daya yangmenyebabkan kerusakan atau disfungsi menggunakan Dissolved Gas Analysis (DGA). Setelah memperbaikititik kerusakan, pengujian dan analisis ulang dilakukan untuk mengetahui apakah transformator dapat beroperasidengan baik. DGA dilakukan dua kali, pasca-gangguan transformator dan pasca pemasangan. Hasil pengujianDGA perlu dianalisis dengan menggunakan lima metode, yaitu metode TDCG, metode Key Gas, metode RogerRatio, metode Doernenburg Ratio dan metode Duval Triangle. Beberapa elemen gas utama yang terkandungdalam minyak transformator dalam pengujian DGA adalah H2, CO, CO2, CH4, C2H2, C2H4 dan C2H6. Nilaielemen-elemen gas utama yang digunakan dalam metode-metode tersebut sesuai dengan peraturan dalam IECC57 104 2008 dan IEEE 60599. Hasil dari penelitian ini adalah identifikasi gangguan trafo, keuntungan darimetode-metode tersebut serta metode yang sesuai untuk mendapatkan justifikasi gangguan trafo.
Performansi Kinerja Jaringan WLAN 5 GHz Sebagai Alternatif WLAN 2,4 GHz pada Area Perkantoran Muhammad Amin Bakri; Muhammad Farhan; Aeri Sujatmiko
JREC (Journal of Electrical and Electronics) Vol. 7 No. 2 (2019): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v7i2.1995

Abstract

Penggunaan jaringan nirkabel (Wireless LAN) dalam menunjang pekerjaan sehari-hari semakin meningkat, baikdi kantor maupun non-kantor. Penelitian ini bertujuan menganalisis kinerja jaringan WLAN frekuensi 5 GHz sebagaialternatif WLAN 2,4 GHz yang selama ini banyak digunakan. Observasi dilakukan untuk melihat kinerja WLAN padaimplementasi di lapangan yang sesungguhnya, yakni penggunaan pada ruang perkantoran. Pengujian parameter untukkedua jenis jaringan WLAN dilakukan dengan mengukur throughput, delay, dan packet loss masing-masing padajarak 3m, 6m, 9m, dan 12m. Hasil pengukuran tersebut kemudian dianalisis dengan menggunakan standar kebutuhanpekerjaan dan Standar TIPHON. Hasil pengujian menunjukkan bahwa kinerja jaringan WLAN 5 GHz memang lebihbaik dibandingkan kinerja WLAN 2,4 GHZ sebagaimana fitur yang dijanjikan, khususnya dalam hal throughput dandelay yang dihasilkan. Meskipun demikian, perbedaan yang ditunjukkan tidak begitu signifikan.
Tegangan Jatuh Jaringan Distribusi pada Penyulang Takar Tegangan Menengah 20 KV Gardu Induk Pondok Kelapa PT.PLN (Persero) Rayon Bantar Gebang Andri Ridwan; Andi Hasad; Muhammad Ilyas Sikki
JREC (Journal of Electrical and Electronics) Vol. 7 No. 2 (2019): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

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Abstract

Penelitian ini membahas mengenai pengaruh arus, jarak, diameter dan jenis penghantar yang terjadi pada sistemdistribusi jaringan tegangan menengah terhadap tegangan jatuh pada penyulang takar di PT.PLN (Persero) Rayon BantarGebang. Perhitungan tegangan jatuh dilakukan pada tiap-tiap segmen penghantar utama dan dibagi menjadi beberapaskenario berdasarkan jenis dan diameter penghantar. Metode analisis yang digunakan adalah analisis deskriptif dengandistribusi frekuensi, dimana dapat dilihat bahwa peningkatan nilai tegangan jatuh yang terjadi pada penyulang takar akansemakin besar akibat perubahan nilai arus, jarak dan diameter penghantar. Dari hasil perhitunganyang dilakukan,diketahui bahwa tegangan jatuh yang terjadi pada skenario 1 kondisi nyata penyulang takar dengan penghantar AllAllumunium Alloy Conductor 150 sebesar 1,3 kV atau 6,7 persen, paling besar terjadi pada skenario 2 sebesar 2.3 kV atau11.5 persen dan yang paling rendah pada skenario 3 sebesar 0.6 kV atau 3 persen, maka dengan menggunakan skenario3 penghantar All Allumunium Alloy-Solation 150 dapat menekan besarnya jatuh tegangan menjadi 0.6 kV meskipun dalamkeadaan beban puncak maksimal.
Prototipe Antena Mikrostrip Feed Slot Loop Berfrekuensi Milimeter Wave Untuk Teknologi 4G LTE Sukwati Dewi Asrika; Sri Marini; Ninik Paryati
JREC (Journal of Electrical and Electronics) Vol. 7 No. 2 (2019): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

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Abstract

Teknologi 4G LTE membutuhkan antena yang bekerja pada frekuensi 1,8 GHZ - 5 GHZ. Pada Penelitian ini merancang Antena mikrostrip wide-band T tranformer slot loop patch persegi berfrekuensi milimeter wave berkerja pada range frekuensi 2 GHz - 5 GHz. Geometri antena 12 x 18
Antena Mikrostrip Patch Square Double Slit Metode Proximity Couple Untuk Teknologi 5G Sunilam Waridhah; Sri Marini; Muhammad Amin Bakri
JREC (Journal of Electrical and Electronics) Vol. 8 No. 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2199

Abstract

Fifth generation (5G) cellular communication system needs more require higher data rate. One of the major innovations in 5G system is to utilize the millimeter wave (mm-wave) spectrum above 24 GHz together with a beam-controlled phased array antenna. This study aims to design a microstrip antenna with a working frequency of 24.25 GHz- 27.5 GHz with a bandwidth of 3.25 GHz. The patch used is a square double slit and given a U-shaped slot that can change the parameter value, the proximity coupled rationing method with an impedance value (ZL) of 50 Ohms. This microstrip antenna design uses double side PCB RTD Duroid 5880 series dielectric material. The selection of RT Duroid 5880 has a thickness of 1.575 mm, and the dielectric constant value of 2.2 as a substrate is considered suitable for high frequencies (above 10 GHz). The conductor material uses copper with a thickness of 0.035 mm. This study produces dimensional simulation before and after optimization of the working frequency of 26 GHz. Before optimization, the return loss value was -6,625 dB, VSWR 2.7481 and gain 5 dBi. Once optimal, the resulting loss value is -15,821 dB, VSWR 1.3861 and a gain value of 10.1 dBi. Antenna that has been manufactured, is implemented on wifi modem, where the modem The manufactured antenna is implemented on a Wi-Fi modem, where the modem specifications are in 4G. Antenna 5G installed on a wifi modem is still proven to be connected and can be used to access the internet. but the 5G antenna that is attached to the wifi modem can still be connected and can be used to access the internet.
Perancangan Sistem Pemesanan Barang dan Jasa Berbasis IoT (Studi Kasus Pratama Laundry) Aditya Ichsan Ariyanto; Budi Suryadi; Setyo Supratno
JREC (Journal of Electrical and Electronics) Vol. 8 No. 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2200

Abstract

Laundry is a service that is growing very fast. The demands for laundry services in urban areas are very high since its start to become daily necessity. Currently, laundry services are still limited to manual services, where consumers will come directly or contact a laundry employee to pick up. It requires a process and time which is considered quite complicated. Other problems that arise are related to bookkeeping and the possibility of missing data from consumer orders because there is no real time order data. Researchers conducted research with the aim of designing an IoT-based laundry service ordering tool that utilizes Wemos D1 mini, so that order data can be sent in real time to Telegram. The research was conducted by taking a case study "Pratama Laundry" by taking data from consumers who ordered via touch sensor or google voice to be sent to Telegram.
Kinerja Robot Self Balancing pada Lintasan Bergelombang Menggunakan Pengendali PID Digital Bayu Cendana; Sugeng -; Muhammad Ilyas Sikki
JREC (Journal of Electrical and Electronics) Vol. 8 No. 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2201

Abstract

A two-wheeled self-balancing robot is a mobile robot with two wheels on each side. It is equipped with a controller which balances it. A PID controller can be used to control robot’s position so that it can move steadily in bumpy surfaces. Its PID controller moves by calculating suitable proportional constant (Kp), constant integral (Ki) and derivative constant (Kd) using trial and error method. The analysis of controlling system is based on three aspects of analysis; transient response analysis, steady state response analysis, and stability analysis. The results of present research show that the robot maintained its balance when it moved on a bumpy surface with Kp of 50, Ki of 170 and Kd of 2,2. The analysis of PID parameter suggests that the response of self balancing robot is categorized as overdamped with the percentage of error steady state of1,02% while its stability is categorized as marginally stable.
Desain Perilaku Home Position Pada Robot Soccer Dan Kursi Bergerak Otonom Menggunakan Algoritma Q-Learning Andi Hasad; Yusuf Hanafi; Risa Sartika
JREC (Journal of Electrical and Electronics) Vol. 8 No. 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2202

Abstract

Robot soccer is a type of wheeled car robot that has complexity in the design of the robot. The complexity in the design of the robot makes research development in the field of robotics increasing. This study discusses home position behavior (back to its original point) using the Q-learning algorithm which is implemented on robot soccer. Behavior system is implemented, the robot can move randomly in tracing the color box area to reach the target point. On the other side, using a chair as an object that will be randomly controlled with the Q-Learning algorithm combined with a webcam camera as a sensor to detect the color of the robot's movement area. Color acts as an initial identification so that the robot easily recognizes and knows the target point and area of ​​its movement. From the results of tests that have been done, the optimal behavior of robots to reach the target point is purple-yellow-blue with a value of Q = 5.13 and the time response value is time peak (tp) = iteration 12, time rise (tr) = iteration 8, time settling (ts) = iteration 9, time delay = iteration 6, and the value of the steady state error = 0, while in an autonomous moving chair with a value of Q = 5.13, the number of iterations 9, the number of steps is small and the response time response as follows: time rise (tr) = 9 iterations, time peak (tp) = 7 iteration, time settling (ts) = 9 iterations, delay time (td) = 6 iterations and the steady state error value is zero (0) on the 9th iteration.
Analisis dan Perancangan U-Slot Patch Single Layer Microstrip Antenna 2,4 GHz pada Teknologi Zigbee Sri Marini; Sukwati Dewi Asrika; Dwipa Handayani; Habib Mhammadin
JREC (Journal of Electrical and Electronics) Vol. 8 No. 1 (2020): JREC (Journal of Electrical and Electronics)
Publisher : Program Studi Teknik Elektro Fakultas Teknik Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jrec.v8i1.2204

Abstract

The antenna is the most important part in a wireless communication system. Microstrip one type of antenna that has practical size and dimensions that are simple and easy to fabricate. In this research, we designed and analyzed two slit single layer microstrip antennas for Zigbee technology applications that operate in the 2.4 GHz band. Today, this application has become important for everyday use in industry and home automation, in small areas due to low power requirements for operation and long battery life. The antenna is built on FR-4 epoxy substrate with a thickness of 1.6 mm and εr = 4.4. Antennas operating at 2.4 GHz Resonance frequency have a VSWR value of 1.8 and a Returnloss value of -11 dB with a Vertical radiation pattern, resulting in a narrow impedance bandwidth that can protect the Antenna against interference from other applications in the ISM band. The antenna produced has a patch size of 5.2 cm × 5.2 cm2 with a slit distance of 1 mm. Antennas have advantages in simple design, narrow bandwidth, and their compact size and ease of publication, the test results of the parameters-Parameters, the antenna has met the qualifications of a good antenna standard for zigbee technology.

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