VOLT : Jurnal Ilmiah Pendidikan Teknik Elektro
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Design and development of temperature and humidity control system using PID and Labview on a 20 kV cubicle
No full textDamage to the 20 kV cubicle at PLN Branch Lahat often occurs because the overheater causes considerable losses. Insulation failure at the corroded cubicle terminal results in a decrease in heat production and heater resistance. So there is a mall function (saturated) and a short circuit. Therefore, this study aims to design a prototype to maintain temperature and humidity conditions in a 20 kV cell using Proportional Integral Derivatives (PID) and LabVIEW. Set the Kp, Kd, and Ki parameters, namely proportional, derivative, and integral constants, so that the desired temperature can be maintained to prevent corrosion. The parameter value was obtained at the set point of 40 °C by a value of Kp is 1, Ki is 0.1, and Kd is 0.05, resulting in a rise time of 188 s, a peak time of 216 s, stabilization of 288 s, and a steady-state error of 0.30%. In addition, the setpoint is 43°C, the rise time is 272 s, the peak time is 311 s, the settling time is 377 s, and the steady-state error is 0.60%. Moreover, the 45°C setpoint has a rise time of 338 s, a peak time of 380 s, a settling time of 448 s, and a steady-state error of 0.93%. These results indicate a reasonably good prototype performance
Implementation of IoT Gateway based Raspberry Pi 3 B+ in Lora 433 Mhz Communication System on Flood Detection
No full textFrequent floods in Indonesia cause many problems, therefore it is necessary to create devices with the implementation of Raspberry Pi-based IoT Gateways in the LoRa communication system. The gateway has a function as a performance informer and makes it easy to access the exchange of information data and the space to store a lot of data received from the node. To maximize the implementation, a Gateway was designed consisting of Raspberry Pi 3 B+, ESP-32, and LoRa 433 MHz. This research uses the Research and Development method. The data obtained includes how the Gateway works which will be displayed on the Raspberry Pi screen properly, monitoring the state of the water using Thinger io. Data were obtained from the Gateway and data transmission system from Gateway to Client as much as 42 times with an RSSI value of -53.3 dBm in very good condition at a distance of 1.54 km with a wajanbolic antenna and a very poor RSSI of -91.4 dBm at a distance of 8.32 km without a wajanbolic antenna. A poor RSSI value can cause an error. The results obtained from the experiments in the study showed that the implementation of Raspberry Pi-based IoT Gateways in the LoRa communication system on flood detection worked well
Identifying learning strategies among first-year engineering students
Full text linkThe Williamson’s self-rating scale for self-directed learning (SRSSL) questionnaire is applied to determine which learning strategies first-year African engineering students have adopted at the start of a problem-based learning module that is designed to promote self-directed learning (SDL). This approach can help academics to better identify “who” their students are, thereby helping them to leverage and improve on current learning strategies to try and enhance student engagement. A requirement for becoming a great teacher in one’s field of study is to come to know your students cognitively, affectively, and culturally. Many different cultures have strongly embedded identities that would form and shape student learning strategies. Intended outcomes: The purpose of this article is to identify what self-perceived learning strategies engineering students have adopted from their school education, by using a standardized questionnaire. Student perceptions regarding their own levels of SDL, as well as their expectations and actual achievements of academic success, are also presented. The purpose of the problem-based learning module that is used in this study is to give engineering students the opportunity to develop managerial skills as the module involves much teamwork, where imaginary companies are formed with the goal of designing and constructing specific projects for real industry-based clients. A time-lag study is used where quantitative data are collected using a standardized questionnaire. Results indicate that 77% of females report high levels of SDL, while only 66% of males do so. No significant correlation exists between the self-reported scores of the students and their final grades. However, the three most reported learning strategies include interactive teaching and learning sessions, simulations, and educational interactive technologies. It is recommended that academics encourage SDL among first-year engineering students by helping them to identify appropriate learning strategies that can help them to enhance their engagement with the course and subsequent academic success
Implementation of Brushless DC Motor control system with Six Step Commutation Fuzzy Logic Controller
No full textMotor DC brushless (BLDCM) memiliki karakteristik kecepatan / torsi yang baik, efisiensi dan re-spon dinamis tinggi dan banyak diaplikasikan di industri dan propulsi kendaraan. BLDCM umumnya dikontrol menggunakan jembatan semikonduktor daya tiga fase. Pendeteksian posisi rotor menggunakan 3 sensor hall effect. Berdasarkan posisi rotor komponen switching secara berurutan aktif setiap 60 derajat yang disebut six step commutation. Untuk mencapai performa yang baik, BLDCM membutuhkan pengendali kecepatan yang sesuai. Dalam kasus motor magnet permanen, biasanya kontrol kecepatan menggunakan kontroler proporsional-integral (PI). Pen-gendali ini menimbulkan kesulitan di mana ada beberapa kompleksitas kontrol seperti non-linear dan gangguan beban dan variasi parametrik. Selain itu pengendali PI membutuhkan model ma-tematika linear yang tepat. Penelitian ini membahas Fuzzy Logic Controller (FLC) untuk kontrol kecepatan dari BLDCM. FLC didesain untuk memperbaiki respon dinamis dari sistem penggerak motor dan meminimlisir error steady state. Hasil pengujian menunjukkan fuzzy logic controller berhasil memperbaiki performa BLDC dengan error steady state=0,66 rpm, RMSE= 6,33 rpm dan riak arus 0,899A
Efektivitas Penerapan Service Learning terhadap Peningkatan Kompetensi Siswa Pendidikan Vokasional
No full textUntuk menciptakan pembelajaran yang efektif diperlukan integrasi pengetahuan, keterampilan dan pengalaman. Service learning merupakan pembelajaran yang dapat mengintegrasikan ketiga kompenen tersebut. Penelitian ini bertujuan untuk mengungkapkan efektivitas dari penerapan service learning pada pembelajaran Manual Metal Arc Welding di vocational high school. Efektivitas ditinjau dari peningkatan kompetensi siswa, ketuntasan klasikal dan penilaian masyarakat. Untuk melihat peningkatan kompetensi siswa dilakukan dengan metode pretest dan posttest yang selanjutnya dianalisis dengan persamaan gain score. Ketuntasan klasikal ditinjau dari berapa persen nilai siswa mencapai kriteria ketuntasan minimal. Penilaian dari masyarakat menggunakan instrumen angket. Dari hasil analisis gain score terdapat peningkatan kompetensi siswa dalam kategeri sedang, hasil analisis ketuntasan klasikal menunjukan bahwa ketuntasan siswa 91.67 % dan rata-rata penilaian masyarakat dalam kategori puas. Berdasarkan hasil penelitian dapat disimpulkan bahwa service learning efektif diterapkan untuk pembelajaran pada vocational high school. Siswa mendapatkan pengalaman dalam hal mengaplikasikan kompetensi yang dipelajari disekolah pada proyek pelayanan masyarakat. Interpersonal skill siswa berkembang selama kegiatan pelayanan masyarakat yang dilakukan
Validitas Media Pembelajaran Trainer Dasar Listrik Elektronika di Sekolah Menengah Kejuruan
No full textPenelitian ini bertujuan untuk menentukan validitas media pembelajaran trainer pada dasar listrik elektronika di Sekolah Menengah Kejuruan. Metode penelitian yang digunakan yaitu metode pengembangan (Research and Development) model IDI (instructional Development Institute) yang terdiri dari tahap penentuan (define), pengembangan (develop), dan evaluasi (evaluate). Berdasarkan temuan penelitian, diperoleh kesimpulan bahwa media trainer elektronika yang dikembangkan sudah valid digunakan pada mata pelajaran Dasar Listrik dan Elektronika pada kelas X Jurusan Teknik Instalasi Tenaga Listrik di Sekolah Menengah Kejuruan
Development of interactive multimedia-based learning media on power electronics courses through e-learning
No full textThis research aims to develop interactive multimedia-based learning media that can improve student understanding of the material DC-DC converters and AC-AC converter. The methods used to research and development with the Instructional Development Institute (IDI) model. The subject of the study was a student of electrical engineering education. Data-collecting instruments in the form of a questionnaire. Analytical techniques descriptive data to describe the validity, practicalities, and effectiveness of interactive multimedia-based learning media. The results of this study indicate that interactive multimedia-based learning media on subjects of electronics material power DC-DC converter and AC-AC converter is valid, practical, and effective
The effectiveness of project-based learning in the course of industrial electrical installation practice
No full textArtikel ini bertujuan untuk mengetahui efektifitas penerapan pembelajaran berbasis proyek (Project Based Learning) pada Mata Kuliah Praktek Instalasi Listrik Industri di Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang. Jenis Penelitian ini adalah Quasy Experiment, subyek penelitian adalah mahasiswa Prodi Teknik Elektro Industri (D4) Jurusan Teknik Elektro FT UNP yang mengambil Mata Kuliah Praktek Instalasi Listrik Industri. Dimana terdiri dari 2 Grup Praktek yang masing-masing berjumlah 16 orang. Instrumen yang digunakan adalah langkah-langkah dalam kinerja dan hasil produk. Hasil yang diperoleh nilai rata-rata kinerja 82,3, sedangkan pada hasil penilaian produk diperoleh nilai rata-rata 88,75. Dari pencapaian hasil pembelajaran mahasiswa dengan penerapan pembelajaran berbasis proyek dalam kategori tinggi (45%), dan sangat tinggi (55%), Sehingga disimpulkan penerapan pembelajaran berbasis proyek efektif untuk meningkatkan hasil belajar mahasiswa
Evaluasi Program Praktek Kerja Lapangan Siswa SMK Negeri 1 Padang Menggunakan Logic Model
No full textPenelitian ini bertujuan untuk mengevaluasi Pelaksanaan Praktek Kerja Lapangan SMK Negeri 1 Padang. Evaluasi Praktek Kerja Lapangan (PKL) tersebut dilihat dari aspek Input, Process, Output, Outcome yang dihadapi dalam pelaksanaan PKL. Metode Penelitian yang digunakan yaitu metode kombinasi desain Concurrent Embedded, menggabungkan metode penelitian kuantitatif dan kualitatif secara berurutan, dimana pada tahap pertama penelitian menggunakan metode kuantitatif dan pada tahap kedua metode kualitatif. Hasil penelitian menunjukan bahwa Pelaksanaan Praktek Kerja Lapangan di SMK Negeri 1 Padang Program keahlian Teknik Kelistrikan secara keseluruhan meliputi. Evaluasi Input sesuai kenyataan memperoleh standar skor rata-rata 74,27% dengan kategori Cukup, dan evaluasi Input sesuai harapan memperoleh standar skor rata-rata 89,58% dengan kategori Sangat Baik. Indikator Process sesuai kenyataan diperoleh tingkat persentase sebesar 74,14% dengan kategori Cukup. Sedangkan untuk indikator Process sesuai harapan diperoleh tingkat persentase sebesar 88,56% dengan kategori Baik. Indikator Output sesuai kenyataan diperoleh tingkat persentase sebesar 72,65% dengan kategori Cukup. Sedangkan untuk indikator Output sesuai harapan diperoleh tingkat persentase sebesar 89,13%. dengan kategori Sangat Baik. Indikator Outcome sesuai kenyataan diperoleh tingkat persentase sebesar 72,36% dengan kategori Cukup. Sedangkan untuk indikator Outcome sesuai harapan diperoleh tingkat persentase sebesar 88,41% dengan kategori Baik. Berdasarkan temuan penelitian ini disimpulkan bahwa program Praktek Kerja Lapangan (PKL) siswa diSMK Negeri 1 Padang masih dalam kategori Cukup, perlu diperbaiki untuk masing-masing aspek
Competency Analysis of The Graduate of Vocational High School Using Dual Response Surveys
No full textThe problem in this research is that there are still graduates of Vocational High School No. 9 Padang who are unemployed after graduating. This study aims to analyze the competencies of culinary graduation at Vocational High School No. 9 Padang. This research is a quantitative study using the need assessment instrument with the dual-response survey technique. The results of the discrepancy analysis show that there is no high gap between the competencies of Vocational High School No. 9 Padang graduates and the competencies expected by the industry. The results of the direction analysis show that all the gap categories are in a low category, so it can be concluded that there is no high gap between the competencies of graduates of Vocational High School No. 9 Padang and the competencies expected by the industry. Based on the results of the priority analysis, it is known that there are differences in priority indicators in the three industries. Based on the research findings, it can be concluded that the graduates of culinary in Vocational High School No. 9 Padang have good competence based on an industry perspective