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Analisis dan Simulasi Penerapan Photovoltaic Grid Tied pada Sistem Smart Grid Ratih Puspita Siwi; Lista Litta; Ayu Annisa Akbar
Jurnal Engineering Vol. 5 No. 1 (2023): Volume 5, Nomor 1, 2023
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalengineering.v5i1.23293

Abstract

Perkembangan sistem ketenagalistrikan semakin pesat sejalan dengan pengembangan  energi baru terbarukan. Intermittent menjadi masalah utama pembangkit listrik terbarukan, sehingga penggunaan baterai menjadi solusi. Namun hal ini justru menghasilkan limbah bahan beracun dan berbahaya sehingga tujuan untuk menciptakan energi bersih tidak dapat tercapai. Pengembangan  photovoltaic (PV) dengan sistem grid tied  dapat menjadi solusi dari masalah tersebut. Manfaat dari penggunanaan PV dengan sistem grid tied adalah konsumen dapat menyuplai daya di kondisi daya   berlebih dan digantikan pada malam hari sehingga ada pemotongan dari pembayaran listrik setiap bulannya. Dengan begitu, teknologi penyimpanan tidak lagi digunakan pada sistem ini dan terjadi dampak posisitif dari sisi ekonomi pada konsumen. Penelitian ini menganalisis aliran daya sebelum dan sesudah penggunaan PV pada beban home area network dan menghitung dampak ekonomi pada konsumen setelah menyuplai listrik pada grid utiliti.
SIMULASI ANALISIS GANGGUAN SISTEM KELISTRIKAN SULSELRABAR MENGGUNAKAN POWERWORLD SIMULATOR Ratih puspita siwi
Jurnal Pendidikan Teknik Elektro Undiksha Vol. 13 No. 3 (2024): JPTE Periode Desember 2024
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpte.v13i3.84643

Abstract

The South Sulawesi Electricity System consists of 51 buses with the highest peak load at 19.00 WITA of 1073.9 MW. The number of buses being simulated consists of 41 buses because the maximum number in the PowerWorld Simulator software only reaches 41 buses. In the simulated PowerWorld Simulator program, the Bakaru Bus with a working voltage of 150 kV is assumed to be the reference bus. The simulation results show that for faults that occur on each bus, the largest fault current is 10892,400 A, namely when a 3-phase fault occurs on Bus 5 Sungguminasa smallest fault current is 9433,090 A, namely when it occurs on Bus 5 (Sungguminasa Bus). Meanwhile, the largest instantaneous voltage value lies in the Line to Line fault type, namely Bus 2 (Bontoala Bus) with a disturbance value of 1.01179 kV with a working voltage of 149.07 kV after the disturbance occurs and the smallest instantaneous voltage occurs in the Single Line to Ground fault type, namely Bus 22( Sidera bus) with a disturbance value of 0.95961 kV, working voltage 70.83 kV after a disturbance occurs.
ECONOMIC ANALYSIS OF POWER PLANT USING UNIT COMMITMENT SCHEDULING Ratih Puspita Siwi; Ayu Annisa Akbar; Lista Litta; Andi Alviadi Nur Risal
Jurnal Media Elektrik Vol. 21 No. 3 (2024): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v21i3.3277

Abstract

Unit commitment is the scheduling of disconnected generation of generating units in an electric power system within a certain period, with the aim of meeting load demand. This scheduling is usually determined based on human load demand which always changes over time. This research aims to determine the production costs of thermal plants using the Second Order Gradient method to obtain economical operating costs, to determine fuel costs based on plant loading, and to determine the most economical scheduling using unit commitment. This is to determine the most optimal on/off schedule for generating units to be operated to meet the estimated load to achieve minimum fuel costs in rupiah.
Pengembangan Media Pembelajaran Video Tutorial Pada Mata Kuliah Komputer Pembelajaran Di Jurusan Teknologi Pendidikan Fkip Unismuh Makassar Ardiansa; Ratih Puspita Siwi; M. Rifai Inayatullah
TEKNOS: Jurnal Pendidikan dan Teknologi Vol. 1 No. 1 (2023): April
Publisher : Program Studi Pendidikan Teknologi Informasi Fakultas Keguruan dan Ilmu Pendidikan Universitas Islam Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59638/teknos.v1i1.91

Abstract

Penelitian ini bertujuan untuk: (1) menghasilkan media pembelajaran video tutorial, (2) mengetahui keefektifan media pembelajaran video tutorial, mendeskripsikan kelebihan dan kendala yang dihadapi saat media pembelajaran video tutorial. Penelitian pengembangan ini menggunakan model Multimedia Pembelajaran yang terdiri dari tahapan Analisis kebutuhan, Desain pembelajaran, Produksi/pengembangan multimedia, Validasi ahli, Revisi, Uji coba produk. Hasil pengembangan multimedia interaktif melalui validitas ahli dan tahap uji coba telah memenuhi kriteria valid, praktis dan efektif. Setelah diimplementasikan pada mata kuliah komputer pembelajaran semester II menunjukkan bahwa ketuntasan belajar peserta didik memenuhi standar. Hasil dari penelitian pengembangan ini berupa produk video pembelajaran yang telah diuji kelayakannya oleh ahli media, dosen dan mahasiswa sebagai pengguna media tersebut. Berdasarkan hasil uji kelayakan media tersebut maka dapat disimpulkan bahwa media pembelajaran interaktif yang telah dikembangkan efektif dan layak digunakan.
PENGARUH KUALITAS JARINGAN INTERNET, BIAYA DAN FITUR LAYANAN MESIN EDC TERHADAP KEPUASAN PELANGGAN AGEN BRILINK DI KOTA PAREPARE Inayatullah, M Rifai; Ardiansa; Puspita Siwi, Ratih
TEKNOS: Jurnal Pendidikan dan Teknologi Vol. 1 No. 1 (2023): April
Publisher : Program Studi Pendidikan Teknologi Informasi Fakultas Keguruan dan Ilmu Pendidikan Universitas Islam Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59638/teknos.v1i1.92

Abstract

Program layanan keuangan tanpa kantor dalam rangka keuangan inklusif (Laku Pandai) yang diluncurkan oleh Otoritas Jasa Keuangan terus diperkenalkan kepada seluruh masyarakat Indonesia. Setidaknya sudah ada tujuh belas bank yang bergabung dalam program ini salah satunya adalah Bank Rakyat Indonesia (BRI). Program Laku Pandai ini diselenggarakan oleh bank BRI yang dikenal dengan BRILink. BRILink ini merupakan layanan agen Laku Pandai milik Bank BRI yang diluncurkan pada bulan November 2014. Tujuan dari penelitian ini adalah untuk mengetahui dan menganalisis pengaruh Kualitas Jaringan Internet, Biaya Dan Fitur Layanan Mesin EDC terhadap kepuasan pelanggan Agen BRILink di kota Parepare dan untuk mengetahui dan menganalisis variabel manakah yang paling dominan berpengaruh terhadap kepuasan pelanggan Agen BRILink di kota Parepare. Hasil dari penelitian ini adalah Kualitas Jaringan Internet berpengaruh positif dan signifikan terhadap kepuasan pelanggan agen BRILink di kota Parepare. Semakin tinggi Kualitas Jaringan Internet pada agen BRILink maka semakin tinggi pula kepuasan pelanggan agen BRILink di kota Parepare.
DIGITAL TECHNOLOGY – FLIPBOOK MAKER AS THE LEARNING MEDIA TO INCREASE ENGLISH READING SKILL: Teknologi Digital – Flipbook Maker Sebagai Media Pembelajaran Untuk Meningkatkan Keterampilan Membaca Bahasa Inggris Litta, Lista; Ayu Annisa Akbar; Christine Andu; Ratih Puspita Siwi
TEKNOS: Jurnal Pendidikan dan Teknologi Vol. 1 No. 1 (2023): April
Publisher : Program Studi Pendidikan Teknologi Informasi Fakultas Keguruan dan Ilmu Pendidikan Universitas Islam Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59638/teknos.v1i1.98

Abstract

The globalization of Digital technology has impacted all facets of life including education, Therefore, using digital technology in teaching is very important.This research aims to investigate whether or not using digital technology – flipbook maker as a media effective to increase English reading skill and whether or not the students are interested in using digital technology – flipbook maker as a media to increase English reading skill. This research employed Research and development (R&D ) method. The population of this research was the tenth grade students of Frater Senior High School Makassar academic year 2023/2024. This research used cluster random sampling. The sample consisted of 30 students. The data was collected by using a reading test and quisionare. The findings showed that students’ result of the posttest was improved than the students’ result of the pretest by the mean score of 54,83 > 82,17. Then, the mean score of the student’s interest was categorized as strongly interested classification by mean score 88,17.
Teknologi Komunikasi dan Kestabilan Hubungan Pada Pasangan Long Distance Marriage Andu, Christine Purnamasari; Lista Litta; Ratih Puspita Siwi; Ayu Annisa Akbar; Teguh Hartono Patriantoro
TEKNOS: Jurnal Pendidikan dan Teknologi Vol. 1 No. 1 (2023): April
Publisher : Program Studi Pendidikan Teknologi Informasi Fakultas Keguruan dan Ilmu Pendidikan Universitas Islam Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59638/teknos.v1i1.103

Abstract

The research aims to know and understand (1) supporting factors of communication stability to long distance marriage couples (2) the important points that form the basis of communication stability between long distance marriage couples. The research used qualitative descriptive methods. Theresearch was conducted in Makassar city, where research process or data and information collected toward informants were run through communication byphone, directly meet, and also use application such as whatsapp for other or additional information. This research use two kinds of data, which consist of primary and secondary data. Primary data is the result of interviewinginformants which already decided by the researcher to support this research with title “Supporting Factors of Communication Stability to Long Distance Marriage Couple”. Informants consist of ten, then analyzed by using two theories such as : Attribution Theory and Encertainty Reduction Theory. Results show (1) there are eight supporting factors to support the communication stability for long distance marriage couples (2) there are three main point that form the basis of communication stability which is the conclution of the informants responses, such as : commitment, need of each other, ask of eachother conditions.Keywords: Communication Stability, Couple, Long Distance Marriage
Development of a Learning Model Using Practical Unit Modules for Electrical Installation at SMK Negeri 3 Makassar Siwi, Ratih Puspita Siwi; Risal, Andi Alviadi Nur
JURNAL PENDIDIKAN BAHASA DAN BUDAYA Vol 5 No 1 (2025): April (EDULEC)
Publisher : CV. Eureka Murakabi Abadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56314/edulec.v5i1.307

Abstract

Module is one of the teaching materials that can be used by students, either independently or with the assistance of a teacher. Therefore, it is important to develop modules so that they can function optimally as effective learning guides for students. The objective of this study was to develop a practical learning module for electrical installation. The research employed the Research and Development (R&D) method. The stages of the research included: (1) identifying potentials and problems, (2) data collection, (3) product design, (4) product validation, (5) product revision, (6) product testing, (7) further revision, and (8) analysis and reporting. The research design used was Pretest-Posttest Control Group Design. Based on the validity aspects, the results of the development of the practical module for electrical installation are as follows: (1) practical module 1 obtained a score of 85.86% and was categorized as valid; (2) practical module 2 obtained a score of 87.75% and was categorized as valid; and (3) practical module 3 obtained a score of 86.31% and was categorized as highly valid. Student learning activities using the practical electrical installation module were significantly higher compared to students who used worksheets (LKS). Learning outcomes in the cognitive, affective, and psychomotor domains of students who used the practical module were significantly higher than those who used worksheets, with a significance value of 0.001.