Pada laboratorium teknik elektro dibutuhkan alat pengukur daya sebagai alat bantu dalam proses perkuliahan, dengan adanya alat ini dapat memudahkan mahasiswa dalam proses perkuliahan terutama dalam mata kuliah praktikum yang berhubungan dengan pengukuran daya. Sehingga pada penelitian ini dirancang alat ukur power meter yang dapat mengukur tegangan, arus, daya aktif, daya semu, frekuensi, dan faktor daya untuk mempermudah proses perkuliahan terutama dalam mata kuliah praktikum. Alat ukur ini berbasis Arduino ATmega 328P dan menggunakan ZMPT101B dan ZMCT103C sebagai sensor. Hasil pengukuran ditampilkan pada layar LCD 2004. Untuk bagian perangkat lunak, alat ini menggunakan library PowerMonitor. Alat ukur ini diharapkan dapat digunakan pada laboratorium teknik elektro. Dari pengujian di laboratorium dengan menggunakan beban resistif dan dibandingkan dengan power meter pabrikan, didapatkan error presentasi untuk tegangan sebesar 0,33%, arus sebesar 0,26%, dan daya aktif sebesar 0,63%. Hasil ini menunjukkan bahwa power meter rancangan dapat memberikan pengukuran dengan keakuratan yang sangat baik.In the electrical engineering laboratory, a power meter is needed as a tool in the lecture process, with this tool it can facilitate students in the lecture process, especially in practicum courses related to power measurement. So that in this research is a design of an electrical instrument that is able to measure, voltage, current, active power, apparent power, frequency, and power factor to facilitate the lecture process, especially in practicum courses. This instrument is based on the Arduino Atmega328P, and it use ZMPT101B and ZMCT103C as sensors. Th measurement results are displayed on the 2004 LCD screen. This instrument employs the PowerMonitor library for its software. This measuring instrument is expected to be used in electrical engineering laboratories. Based on laboratory testing of a resistive load which compared to a manufactured power meter, it reveals that the percentage error of a voltage, a current, and active power is 0.33%, 0.26%, 0.63%, respectively. This signifies that the design of a power meter can provide an accurate measurement.
The proposed digital parity generator circuit is an integrated circuit functions to detect data errors at the transmitter end, and check it at the receiving end. In digital communications, the digital messages are transmitted in the form of 1’s and 0’s between two points. It is an error free if both are the same. The purpose of this research is to implement a design method of digital parity generator layout with 0.7 micron process technology ECPD07 from Tanner Tools. Layout design starts from making schematic circuit, test function and make a layout. Next, check the layout results in terms of design rules and verify the desired functionality gradually. The results show that the circuit has functioned well as an odd parity generator. The simulation results obtained with loads CL = 25 fF, tpLH = 2nS and tpHL = 1.46 nS indicate that tp = 1.73nS or operating frequency of 578 MHz. The integrated digital parity generator circuit using transmission gate has a size of 14758 um2 (78.5 um x188 um), consisting of 74 gates.<br /><br />
This research focuses on the multi-cycle production development planning for sustainable power systems to maximize the usage of renewable energy sources. The intention of this study is to offer a comprehensive review of the research on the potential of multi-cycle production development planning for the development of sustainable power systems. In pursuit of this objective, the study has incorporated a qualitative research approach to analyze the volume of data available on the research topic to delineate how multi-cycle production development planning can be used for sustainable power systems and the maximization of the use of renewable energy sources. The study also highlights the major models that can be incorporated into the multi-cycle production development planning for sustainable power systems to maximize the use of renewable energy sources. The existing literature was extracted from databases, namely, Google Scholar, EBSCOHost, and Springer. The data comprised peer-reviewed journal articles, books, and credible online sources. Lastly, the practical and theoretical relevance of the study, along with limitations and recommendations for future practitioners, is provided in the conclusion. Doi: 10.28991/CEJ-2022-08-11-018 Full Text: PDF
Penggunaan energi listrik telah menjadi hal yang mutlak, seiring dengan berkembangnya perangkat elektronik. Namun dalam penggunaan energi listrik sering menimbulkan masalah seperti terjadi pemutusan arus listrik pada seluruh beban oleh pemutus sirkuit akibat beban lebih. Permasalahan tersebut sering terjadi pada penggunaan energi listrik skala rumah tinggal yang memiliki kapasitas daya maksimal 450 watt. Penelitian ini bertujuan untuk merealisasikan hardware dan software prototipe pengatur beban pintar, serta dilakukan pengujian untuk mengetahui keakuratan alat dalam pengukuran dan unjuk kerja alat dalam memproteksi beban. Dalam penelitian ini menggunakan metode eksperimen yang didalamnya terdapat beberapa langkah diantaranya adalah perancangan perangkat keras dan perangkat lunak, serta pengujian alat. Berdasarkan hasil pengujian yang di lakukan, hasil perhitungan persentase eror antara pengukuran alat rancangan dengan alat ukur berstandarisasi untuk beban resistif yaitu total daya beban sebesar 2,10%, tegangan kerja beban sebesar 0,44%, total arus beban sebesar 2,36%, dan total cos phi beban sebesar 0%. Sedangkan untuk beban induktif yaitu total daya beban sebesar 0,38%, tegangan kerja beban sebesar 0%, total arus beban sebesar 0%, dan total cos phi beban sebesar 1,03%. Adapun alat rancangan bekerja sesuai fungsinya dengan memutuskan beban yang bukan prioritas jika terjadi beban lebih dalam pemakaian energi listrik.The use of electrical energy has become an absolute necessity, along with the development of electronic devices. However, the use of electrical energy often causes problems such as a disconnection of electric current in the entire load by a circuit breaker due to overload. These problems often occur in the use of residential-scale electrical energy, which has a maximum power capacity of 450 watts. This study aimed to realize the prototype hardware and software for smart load control, as well as testing to determine the accuracy of the tool in measuring and the performance of the tool in protecting the load. It applied an experimental method in which there were several steps, including the design of hardware and software, as well as tool testing. Based on the results of the tests carried out, the results of the calculation of the percentage error between the measurement of the design tool and standardized measuring instruments for resistive loads, i.e., the total load power of 2.10%, working voltage load of 0.44%, total load current of 2.36%, and the total cos phi load of 0%. As for the inductive load, the total load power was 0.38%, the load working voltage was 0%, the total load current was 0%, and the total cos phi load was 1.03%. The design tool worked according to its function by deciding which load was not a priority if there was an overload in the use of electrical energy.
Peningkatan infrastruktur melalui alokasi dana desa dalam rangka peningkatan pelayanan masyarakat semakin banyak dilakukan di setiap daerah. Setiap tahun alokasi dana desa melalui APBN terus meningkat. Dalam kegiatan pembangunan infrastruktur desa, penyusunan rencana anggaran biaya adalah hal yang sangat penting dan harus dikuasai agar kegiatan dapat berjalan sesuai rencana dengan target biaya, mutu dan waktu yang efektif dan efisien serta dapat dipertanggungjawabkan. Desa Tunas Jaya sebagai mitra yang bekerjasama dalam kegiatan Pengabdian kepada Masyarakat kali ini telah dibimbing dan dilatih melalui kegiatan pelatihan menggunakan metode learning by doing terkait Penyusunan Rencana Anggaran Biaya (RAB). Adapun materi-materi yang deberikan kepada perangkat desa yakni: pengenalan tentang RAB dan komponen penyusunnya, perhitungan volume pekerjaan, perhitungan estimasi waktu penyelesaian pekerjaan, perhitungan jumlah tenaga kerja dan kebutuhan material dan diakhir pelatihan akan diberikan materi berupa penyusunan RAB dan komponennya menggunakan Microsoft Excel. Dari hasil pelatihan dapat disimpulkan bahwa, perangkat desa telah memahami bagaimana menyusun RAB berdasarkan Analisis Harga Satuan Pekerjaan (AHSP) sesuai Standar Nasional Indonesia (SNI) menggunakan Microsoft Excel. Luaran dari kegiatan pengabdian kali ini adalah berupa modul anggaran biaya yang dapat digunakan oleh perangkat desa dalam rangka kegiatan perencanaan pembangunan di desanya.
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