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All Journal Journal of General Education Science Electrical Today
Ramadhani, Nabila Aulia
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Application of the Picture and Picture Learning Model to Increase Low Class Students' Interest in Learning Zulyadain, Ahmad; Dimansyah, Athalia; Ramadhani, Nabila Aulia
Journal of General Education Science Vol 2 No 1 (2023) Journal of General Education Science, November
Publisher : Berpusi Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62966/joges.vi.485

Abstract

The application of innovative learning models as an effort to improve the learning process is very enjoyable, thereby increasing students' interest in participating in the implementation of learning. The use of learning models in learning activities is important. A teacher must choose the right learning model so that the teaching and learning process meets the desired goals. However, in reality teachers still tend to use conventional learning models so that students become less interested and become inactive in participating in learning, even though interest is one of the factors that influences student learning success. Therefore, the model that can be used as a solution to this problem is the picture and picture learning model. This research was carried out at SD Negeri 050724 which is located at Jl. T. Amir Hamzah Kel. Pekan Tanjung Pura District. Tanjung Pura, Kab. Step up. In this research, the PTK (Classroom Action Research) type of research was used. Data collection techniques used were observation, questionnaires and tests. The subjects in this research were all class I students at SD Negeri 050724, totaling 16 people. The object of this research is to increase student interest and learning outcomes through the use of the picture and picture learning model.
Rancang Bangun Autotransfer Soft starter Untuk Pengoperasian 3 Buah Motor Induksi 3 Phasa Gunawan, Arif; Yusuf Prasetya; Syamsir, Hendri Novia; Syahrizal, Syahrizal; Sahar, Muzni; Ramadhani, Nabila Aulia
Electrical Today Vol 1 No 02 (2025): Electrical Today: December 2025
Publisher : Asosiasi Material Terapan dan Teknologi (AMTT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65794/J.Electo.1.02.79-89

Abstract

Motor induksi tiga fasa merupakan komponen penting dalam sistem industri karena keandalan dan efisiensinya yang tinggi. Namun demikan, metode pengoperasian langsung menggunakan Direct-On-Line (DOL) sering menimbulkan lonjakan arus starting yang sangat tinggi, yaitu hingga 5-9 kali arus nominal. Kondisi arus awal yang tinggi ini berpotensi menurunkan kualitas daya, memperpendek umur motor, dan meningkatkan risiko gangguan pada sistem kelistrikan. Untuk mengatasi permasalahan tersebut, penelitian ini mengembangkan sistem Autotransfer Soft Starter yang berfungsi sebagai pengatur tegangan bertahap saat proses starting sekaligus mampu mengoperasikan tiga motor induksi tiga fasa secara bergantian menggunakan satu unit Soft Starter. Sistem ini dilengkapi dengan mekanisme transfer otomatis yang memungkinkan perpindahan suplai daya dan kendali antar motor tanpa gangguan. Metode penelitian meliputi perancangan rangkaian daya dan rangkaian kontrol, implementasi sistem Autotransfer, serta pengujian kinerja dengan membandingkan metode soft starting terhadap metode DOL. Parameter utama yang diamati adalah besarnya arus starting motor. Hasil pengujian menunjukkan bahwa penggunaan Soft Starter dengan setelan 50% dan 70% mampu menurunkan arus starting masing-masing sebesar 50% dan 70% dibandingkan metode DOL. Selain itu, sistem Autotransfer Soft Starter mampu mengoperasikan tiga motor secara berurutan tanpa menimbulkan lonjakan arus tambahan. Dengan demikian, sistem yang dikembangkan efektif dalam meningkatkan efisiensi penggunaan perangkat dan keandalan pengoperasian motor induksi tiga fasa pada aplikasi industri multi-motor
Co-Authors Arif Gunawan Dimansyah, Athalia Sahar, Muzni Syahrizal Syahrizal Syamsir, Hendri Novia Yusuf Prasetya Zulyadain, Ahmad