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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Fokus Elektroda (Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali)
Alhidayat
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Analisis Penggunaan Uninterruptible Power Supply (UPS) sebagai Solusi untuk Mengatasi Tegangan Kejut pada Suplai Daya Motor Control Center (MCC) Alhidayat; Samuel Jie; Wa Ode Zulkaidah; Mustarum Musaruddin; Mansur; Agustinus Lolok; Luther Pagiling
Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Vol. 8 No. 4 (2023): Jurnal Fokus Elektroda Vol 8 No 4 2023
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Halu Oleo

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Abstract

Motor circulating water pump (CWP) adalah salah satu peralatan yang sangat penting di sebuah pembangkit listrik. Namun pada PLTU Nii Tanasa sering terjadi jatuh tegangan yang mengakibatkan ikut tripnya peralatan bantu boiler dan turbin Pltu nii tanasa, Untuk mengatasi jatuh tegangan dilakukan modifikasi modifikasi pemindahan tegangan control Motor Circulating Water Pump pada panel Motor Control Center (MCC) menggunakan Uninterruptible Power Supply (UPS). Hasil perhitungan yang telah dilakukan bahwa diketahui jatuh tegangan antara penyulang kendari sampai Pltu Nii tanasa Kendari dengan tegangan kirim 6 kV tegangan terimanya 3.89 kV dengan jatuh tegangan total 2,11 kV dan presentase jatuh tegangan 35,2 % Dari hasil perhitungan di atas, tampak jelas bahwa jatuh tegangan sebesar 38,3 % mengakibatkan tegangan input MCC turun secara drastis dari 380 V menjadi 67,9 V sehingga MCC gagal start untuk menjalankan motor CWP unit 2 yang mengakibatkan Vacuum Condenser low dan relay proteksi trip. Dan hasil perhitungan setelah menggunakan UPS, terlihat bahwa jatuh tegangan (∆V) sebesar 0,64 % pada input MCC adalah dalam batas normal sehingga MCC dapat melaksanakan fungsinya tanpa mengalami trip. Pada suplai motor CWP, tampak pula bahwa jatuh tegangan (∆V) sebesar 3,2 % berada dalam batas normal sehingga motor CWP tersebut dapat start secara normal tanpa terjadi trip.
IMPLEMENTASI METODE PEMBELAJARAN BRAINSTORMING UNTUK MENINGKATKAN HASIL BELAJAR DI SMP NEGERI 30 MAKASSAR Alhidayat; Syahid, Akhmad; Ahmad; Subaedah; Syahrul, Muhammad
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 Nomor 03, September 2026 Publish
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.59236

Abstract

This study aims to improve student learning outcomes in Islamic Religious Education through the application of the Mind Mapping-based Brainstorming method in class VIII.8 of SMP Negeri 30 Makassar. This study was motivated by the low learning outcomes of students, as indicated by the average pre-cycle score of 68, still below the Minimum Completion Criteria (KKM) of 75, as well as the low student activity during the learning process. The type of research used is Classroom Action Research (CAR) with the Kemmis and McTaggart model consisting of the planning, action implementation, observation, and reflection stages. The study was conducted in two cycles with 30 students of class VIII.8 as research subjects. Data collection techniques include observation, learning outcome tests, and documentation. Data were analyzed quantitatively through calculating the average and percentage of learning completion and qualitatively through observations of teacher and student activities. The results showed that the application of the Mind Mapping-based Brainstorming method was able to improve the process and learning outcomes of students. Teacher activity increased from 75% in cycle I to 84% in cycle II, while student activity increased from 66% to 84%. The completion of learning outcomes also increased, namely from 53.33% in cycle I to 86.67% in cycle II. In addition, students showed an increase in active discussion, courage to express opinions, ability to work together, and skills in compiling mind maps. Based on these results, it can be concluded that the Mind Mapping-based Brainstorming method is effective in improving student learning outcomes in Islamic Religious Education subjects in class VIII.8 SMP Negeri 30 Makassar and is worthy of being used as an alternative learning that is innovative, active, and student-centered.  
Co-Authors Agustinus Lolok Ahmad Mansur Mustarum Musaruddin Pagiling, luther Samuel Jie Subaedah Syahid, Akhmad syahrul, muhammad Zulkaida, Wa Ode