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Analisis Perbandingan Faktor Daya Pada Motor Kompressor Type Electromotor 15 KW Juanda Mitra Situmeang; Mustofa Abi Hamid
Emitor: Jurnal Teknik Elektro Vol 23, No 2: September 2023
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v22i2.21956

Abstract

This study analyzes the comparison of the power factor on the compressor motor type electromotor 15 kw (30 Bar/High pressure) at PT. Natural gas is a means of work. The power factor is the power losses generated by the electricity in the compressor motor, the power factor is also useful for limiting large power expenditures and the power factor or cos phi has a ratio between active power and apparent power. The results of this study indicate that the comparison of the power factor on the load of the 15 kw electromotor compressor motor at the initial start of the motor can be seen manually counting data and graphs every week. In the first week of total, 0.85 compared to the data for the second week, third week, and fourth week.
Strategi Guru dalam Proses Pembelajaran Praktik Mata Pelajaran Produktif di Sekolah Menengah Kejuruan Aula Rizqiyana; Mohammad Fatkhurrokhman; Mustofa Abi Hamid
Journal on Education Vol 6 No 1 (2023): Journal On Education: Volume 6 Nomor 1 Tahun 2023
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i1.4175

Abstract

This study aims to reveal the teacher's strategy in the learning process of practical productive subjects. The research was conducted at SMKN 1 Kramatwatu using a qualitative approach with a case study method. Data collection techniques through in-depth interviews, participant observation, and documentation. Determination of informants using snowball sampling technique. Informants in this study were teachers and students of class XI, the competence of Electrical Power Installation Engineering. The validity of the data in this study uses source, technique, and time triangulation. The data analysis technique used in this study is the interactive model Miles, Huberman and Saldana with the help of ATLAS TI 9 software. The results obtained in this study are (1) implementing contextual strategies used when conducting apperception activities and providing stimulus to students; (2) managing the class by implementing a rolling system, supervising and guiding students; (3) applying peer tutors; and (4) communicating persuasively by taking a personal approach to students and giving reprimands and advice when students violate or make mistakes.
Sistem Auto Filling Machine Berbasis Mikrokontroller Human Machine Interface Dengan Water Flow Sensor Puji Pangestu; Didik Aribowo; Mustofa Abi Hamid
INTECOMS: Journal of Information Technology and Computer Science Vol 7 No 3 (2024): INTECOMS: Journal of Information Technology and Computer Science
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/intecoms.v7i3.9742

Abstract

Perkembangan teknologi dibidang industri saat ini sangat berkembang pesat, penggunaan sistem kontrol volume manual pada peralatan pengisian bahan produksi tertentu masih terus berlanjut. Tujuan dari penelitian ini adalah untuk merancang sebuah sistem kontrol pengisian bahan produksi secara otomatis. Sistem ini dibangun dengan memanfaatkan Arduino Uno Atmega328 dan Human Machine Interface, dengan komponen pendukung sistem yang terdiri dari sensor aliran air, pompa air, relai, dan catu daya. Sebuah aplikasi dimasukkan ke dalam sistem untuk pemantauan penggunaan bahan produksi. Sensor Aliran Air menghitung volume air yang dikeluarkan. Kalibrasi melibatkan memasukkan nilai konstan 0,8. Volume air dihitung dengan menjumlahkan debit air per detik melalui sensor Aliran Air. Jika batas pada setpoint sensor aliran air tercapai, pompa air akan berhenti, seperti yang ditunjukkan oleh hasil implementasi alat. Akurasi alat berkisar antara 77,76% hingga 100%, seperti yang ditunjukkan oleh hasil uji coba yang dilakukan. Persentase kesalahan tertinggi yang teramati adalah 22,24%, sedangkan yang terkecil adalah 0%, dengan deviasi rata-rata ±9,00. Kesalahan ini berasal dari perbedaan volume antara nilai yang ditetapkan oleh sensor aliran air dan jumlah material yang dikeluarkan. Data perhitungan volume disimpan dalam mikrokontroler dan ditampilkan pada layar nextion. Pengguna dapat memantau data dengan mentransfernya ke aplikasi. Kata Kunci: Auto Filling Machine, Arduino Uno, Mikrokontroler, Human Machine Interface, Sensor Aliran Air.
ANALISIS ERROR METER DAN CT PADA AUTOMATIC METER READING (AMR) DI PT PLN (PERSERO) UP3 CIKUPA Widya Dwi Agustin; Mustofa Abi Hamid
Jurnal Informatika dan Teknik Elektro Terapan Vol 12, No 1 (2024)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v12i1.3776

Abstract

Abstrak. Ketidakakuratan atau kerusakan pada meter dan CT dapat menghasilkan kesalahan pengukuran yang signifikan, yang pada gilirannya dapat berdampak pada penagihan yang tidak akurat, perencanaan jaringan yang tidak efisien, dan pelaporan yang salah. Penelitian ini menggunakan metode kualitatif. Teknik pengumpulan data yang digunakan adalah observasi dan studi pustaka. Penelitian ini dilakukan pada tiga pelanggan untuk menjaga nilai akurasi Meter dan Current Transformator (CT) pada pelanggan potensial sesuai dengan batas kelasnya. Kegiatan pengujian meter yang dilakukan oleh PT PLN (Persero) UP3 Cikupa menggunakan alat emsyst yaitu rutinitas pengecekan AMR untuk memastikan pembacaan meter oleh AMR masih berfungsi dengan baik atau error yang terdapat pada meter dan CT tersebut masih dalam batas kelas. Sehingga, pembacaan pemakaian listrik pada pelanggan masih akurat sesuai dengan jumlah energi yang dipakai.  Abstract. Inaccuracies or damage to meters and CTs can result in significant measurement errors, which in turn can impact inaccurate billing, inefficient network planning, and incorrect reporting. This research uses qualitative methods. The data collection techniques used are observation and literature study. This research was conducted on three customers to maintain the accuracy value of the Meter and Current Transformator (CT) on potential customers according to the class limit. Activities carried out by PT PLN (Persero) UP3 Cikupa using the emsyst tool, namely the AMR checking routine to ensure that the meter reading by AMR is still functioning properly or the error contained in the meter and CT is still within the class limit. Thus, the reading of electricity usage on customers is still accurate according to the amount of energy used.
Peningkatan Kompetensi Siswa SMKN 1 Kramatwatu dalam hal comunication, critical thingking, collaboration dan creative pada kegiatan Kihajar STEM Tingkat Nasional 2023 Alamsyah Alamsyah; Apriliano Chandra Diva; Irwan Syah; Alif Kautsar; Mustofa Abi Hamid
Jurnal Sadewa : Publikasi Ilmu Pendidikan, pembelajaran dan Ilmu Sosial Vol. 2 No. 1 (2024): Februari : Publikasi Ilmu Pendidikan, pembelajaran dan Ilmu Sosial
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/sadewa.v2i1.528

Abstract

The author provides training and guidance aimed at improving student competence in terms of communication, creative thinking, collaboration and creativity at the 2023 national level Ki Hajar STEM activities. This research uses quantitative research methods with a quasi-experimental type. There are two stages in this research, the preparation stage, namely the preparation stage before the competition and the implementation stage, namely the stage of participating in the Kihajar STEM competition activities. The innovation they created, namely a cellphone device or automatic sprinkler based on solar cells, increased their abilities in terms of creativity and were able to work together in making this cellphone device which was used as a tool to compete in the Kihajar STEM competition. 4C competencies consist of critical thinking competencies, creativity competencies, communication competencies and collaborative competencies.
Pengembangan Sistem Pakar Identifikasi Modalitas Belajar Siswa Menggunakan Metode Forward Chaining dan Certainty Factor Hardiansyah, Rudi; Aribowo, Didik; Hamid, Mustofa Abi
Building of Informatics, Technology and Science (BITS) Vol 3 No 4 (2022): March 2022
Publisher : Forum Kerjasama Pendidikan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (595.483 KB) | DOI: 10.47065/bits.v3i4.1226

Abstract

Teachers or educators find it difficult to determine student learning modalities at SMK PGRI 2 Serang City during online and offline learning. Online and offline learning must also be interesting and clear, not only images and text, but must be more interactive, because students have different learning modalities. So that in carrying out online learning the teacher must know the learning modalities of his students in order to make it easier to carry out online and offline learning. So it is necessary to create an expert system that can identify the learning modalities of students and also the accuracy of the expert system, the feasibility of efficient and effective learning modalities in online and offline learning. The stages of developing this website-based expert system design system use the waterfall method. The system development is in stages in 4 stages, namely the needs analysis stage, the design stage, the coding or implementation stage, and the system testing stage. The subjects in this study were 2 media experts, 4 teachers 1 school admin staff, and 36 students. Based on research results from testing the feasibility level of the system or product from media experts, namely 68.5 with these results it means the expert system website is in the "very feasible" category, then the results of testing the feasibility level of the expert system from users (teachers and students) are 94, 8 and 92.75 with these results in the "very feasible" category
ANALISIS PENYEBAB TERJADI FALSE ALARM PADA FIRE ALARM SYSTEM DI GEDUNG NUSANTARA I DPR RI Anggraeni, Destri; Hamid, Mustofa Abi
Teknika Vol 9 No 1 (2024): April 2024
Publisher : Pusat Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52561/teknika.v9i1.324

Abstract

Workplace fire incidents can harm many parties, so a fire can cause fatalities, material losses, work losses, and other losses that can have fatal consequences. This research aims to understand the working principles of the fire detection system, determine the role of the fire alarm system in the security and safety of building occupants, and determine the causes of false alarms in the fire alarm system in the Nusantara I DPR RI Building. This research uses qualitative procedures with a descriptive approach. Information retrieval methods take the form of observation, interviews and documentation. The study showed that this fire warning system could detect and give a warning sound to all building occupants. This is due to a fire initiated by sending a signal from the detector and connected to the master panel. The role of a fire warning system in a building is to warn building occupants, workers or visitors about the presence of a fire so that they can immediately take appropriate evacuation action and extinguish the fire if possible. The factor that causes false alarms is that the detector in this fire alarm immediately detects things like cigarette smoke, dust, problems with the installation, and damaged detectors.
Pengaruh Model Pembelajaran Problem-Based Learning berbantuan Modul dan Jobsheet terhadap Hasil Belajar Instalasi Motor Listrik Pertiwi, Devi; Darmawan, Ilham Akbar; Hamid, Mustofa Abi
Jurnal Pendidikan Teknik Elektro Vol 5 No 2 (2024): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

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

Abstract

The purpose of this study was to determine the effect of the problem-based learning (PBL) learning model assisted by modules and jobsheets on learning outcomes in electric motor installation subjects. This research uses a quantitative approach, the research method used is the quasi-experiment method. The results of this study are: The learning outcomes obtained are not only in the form of increased knowledge but also improved thinking skills that can be applied to real problems. quasi-experimental research or quasi-experimental (quantitative). There is a significant effect of using the Problem-Based Learning model on learning outcomes in the experimental class, and there is an influence on learning outcomes in the control class. This shows that there is a significant difference between the average post-test scores of the experimental class and the post-test scores of the control class using the Problem-Based Learning model assisted by Modules and Jobsheets in learning outcomes in the Electric Motor Installation subject. Then there is the influence of the Problem-Based Learning model on student learning outcomes in the eyes of Electric Motor Installation.
Variable frequency drive trainer kits for electronic control system subjects in vocational secondary schools Hamid, Mustofa Abi; Sudira, Putu; Triyono, Mochamad Bruri; Rizqillah, Muhamad Aqil; Irwanto, Irwanto; Setiawan, Dedi; Desmira, Desmira; Martias, Martias; Hakiki, Muhammad; Subramaniam, Tamil Selvan; Abdurrahman, Abdurrahman
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 5: October 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i5.29333

Abstract

The objective of this study is to create a variable frequency drive (VFD) trainer kit, assess the practicality of the developed VFD educational tool, and evaluate its impact on the academic performance of industrial electronic engineering students, particularly in the area of electronic control systems. The study utilizes the ADDIE model and customized to meet the requirements and consists of the following phases: analysis, design, development, implementation, and evaluation. There were 130 respondents consisting of 122 vocational students, 1 industry expert/practitioner in the field of VFD, 1 vocational training center instructor, 4 vocational teachers, and 2 lecturers. Data were collected using questionnaires with 4 Likert scales from strongly agree to strongly disagree, feasibility assessment sheets from media experts and material experts, interviews, and electronic control system learning outcomes tests. The learning media receives a “highly feasible” and the job sheet obtains 67 “highly feasible”. Moreover, the level of effectiveness of the learning media receives a score of 0.724, indicating high effectiveness. Therefore, they have proven to be effective in enhancing student learning outcomes and developing their proficiency in controlling the speed of electric motors. This will help bridge the gap between the industry's skill requirements and the skills taught in schools.
Jaringan Transmisi Gardu Induk Sekayu 150 KV M. Ashof Azria Azka; Mustofa Abi Hamid
Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Vol. 2 No. 4 (2024): Juli : Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jupiter.v2i4.378

Abstract

A substation is a transmission installation that distributes power to a load in a certain area. The Sekayu 150 KV Substation is the center for controlling electrical power load requirements and functions as a center for securing electrical power system equipment and as a center for the normalization process for disturbances in the Sekayu transmission area. The electrical power distribution system does not rule out the possibility of disturbances, especially disturbances caused by nature. If there is an unpredictable disturbance, appropriate and reliable safety equipment (protection system) is needed to be able to increase the distribution of electrical power to the load (consumer).
Co-Authors Abdurahman Abdurrahman Affero Ismail, Affero Ag. Bambang Setiyadi Agustin, Widya Dwi Akhinov, Ihsan Auditia Alamsyah Alamsyah Alif Kautsar Ambiyar, Ambiyar Anggraeni, Destri Apriliano Chandra Diva Aula Rizqiyana Bakar, Norazhar Abu D. Desmira Darmawan, Ilham Akbar Dedi Setiawan Desmira Desmira Desmira Desmira, Desmira Desmira, D. Didik Aribowo Didik Aribowo Didik Aribowo Didik Aribowo Didik Aribowo Didik Aribowo Dimas Aditama Djejen Nahrowi Doni Oktaviana Edy Supriyadi Een Yayah Haenilah Endi Permata Endi Permata Endi Permata Endi Permata Fadli, Radinal Fatkhurrohman, M. Fera Puspitasari Fredy Kusuma Nugraha Gunadi Gunadi Hakiki, Muhammad Hani Subakti Hardiansyah, Rudi Hartati Hartati Hidayaturrohman, Maman Hijroh Tamamil Gina I Dewa Putu Nyeneng Ilham Effendy Indra Mutiara, Indra Irwan Syah Irwanto Irwanto Juanda Mitra Situmeang Kartika, Rani Kassymova, Gulzhaina K. Lely Yuliawati M. Ashof Azria Azka M. Sukarno M.Fatkhurokhman M.Fatkhurokhman Marcel Ade Satria Martias Martias Martias, M. Mochamad Bruri Triyono Mohammad Fatkhurrokhman Mohammad Fatkhurrokhman Mohd Ruzaini Hashim Muhammad Amir Baihaqi Muhammad Nurtanto Muhammad Reza Nugraha Mulyono, Raden Sugeng Munandar, Tb. Ai Nahrowi, Djejen Norazhar Abu Bakar Norazhar Abu Bakar Noviawati, Lilis Nur Kholifah NUR KHOLIFAH Nurhasan Syah Nurlaksana Eko Rusminto Nuur Wachid Abdul Majid Permata, Endi Pertiwi, Devi Puji Pangestu Purwanti, Bernadeta Siti Rahayu Putu Sudira Ratna Ekawati RESTI UTAMI Rian Raina Pertiwi Rini Anggraini, Rini Risma Margaretha Sinaga Rizqillah, Muhamad Aqil romi wiryadinata Septyanto, Kukuh Siswantoyo Subhanadri, Subhanadri Subramaniam, Tamil Selvan Sudirman, Okky Sunardi Sunardi Tarkul Hammi Taufik Alfiansyah Tiyas Abror Huda Triani Wahyuningsih Undang Rosidin Wahyuni, Arum Widya Dwi Agustin Yasmiri Yasmiri Yasmiri, Yasmiri Yuliawati, Lely Yuni Suprapto, Yuni