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All Journal Jurnal Cendekia : Jurnal Pendidikan Matematika Jurnal Pengabdian Polinema Kepada Masyarakat ELPOSYS: Jurnal Sistem Kelistrikan

Mudjiono Mudjiono

Politeknik Negeri Malang

Author-ID : 3825781

Humanities Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mathematics

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Articles

Analisis Peningkatan Hasil Belajar dengan Metode Jigsaw Menggunakan E- Learning Google Meet Pada Materi Persamaan Diferensial Mudjiono Mudijono; Yunia Mulyani Azis
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 6 No 1 (2022): Volume 6 Nomor 1 Tahun 2022
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v6i1.1293

Hasil belajar Matematika dari 95 orang mahasiswa teknik elektro Politeknik Negeri Malang dan manajemen STIE Ekuitas, 56% masih dibawah standar kelulusan minimal, rendahnya kemampuan Matematika tersebut dikhawatirkan akan turut mempengaruhi pemahaman terhadap mata kuliah lainnya mengingat Matematika merupakan ilmu dasar dijurusan teknik. Berbagai cara dilakukan pengajar untuk meningkatkan kerjasama, keaktifan, dan kemampuan mempresentasikan dari peserta didik akan tetapi hasil yang diperoleh masih kurang memuaskan. Kondisi pandemi covid 19 semakin memperburuk perolehan hasil belajar, sehingga diperlukan metode belajar e-learning yang benar-benar dapat meningkatkan keberhasilan belajar peserta didik. Tujuan dari penelitian ini adalah untuk meningkatkan kemampuan kerjasama, keaktifan, presetansi, dan hasil belajar mahasiswa setelah metode Jigsaw dalam pembelajaran e-learning melalui media google meet diterapkan. Sampel dari penelitian sebanyak 48 responden yang terbagi kedalam 12 kelompok. Pengukuran peningkatan kemampuan kerjasama, keaktifan, dan presentasi menggunakan skor dari 1–4. Analisis dilakukan secara kualitatif dengan menggunakan teknik membandingkan prosentase siklus I dan siklus II dalam tindakan penelitian. Kesimpulan yang diperoleh dari penelitian ini adalah unsur kerjasama, keaktifan, dan presentasi implementasi metode jigsaw e-learning melalui media google meet pada materi diferensial tingkat satu berada pada kategori baik, sehingga terjadi peningkatan hasil belajar peserta didik. Kelebihan metode Jigsaw yang tidak dapat membuat peserta didik bersikap pasif, dapat memotivasi peserta didik untuk mengembangkan pengetahuannya melalui sarana internet sehingga ketika bekerja sama dan presentasi peserta didik merasa percayaan diri.

PELATIHAN PEMBUATAN ALAT PERAGA IPA BAGI GURU SMP IT AL HIKMAH Abdullah Mas’ud; Mudjiono; Aly Imron
Jurnal Pengabdian Polinema Kepada Masyarakat Vol. 7 No. 2 (2020): Jurnal Pengabdian Polinema Kepada Masyarakat
Publisher : UPT Penelitian dan Pengabdian Kepada Masyarakat Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jppkm.v7i2.39

Permasalahan yang dihadapi guru-guru SMP IT AL HIKMAH adalah terbatasnya dana dan tersedianya alat peraga pada proses pembelajaran IPA. Demikian juga minimnya pengetahuan, pengalaman dan ketrampilan dalam penggunaan dan pembuatan alat peraga IPA yang akan digunakan untuk menyampaikan materi pembelajaran IPA pada siswa. Melalui pelatihan dan bimbingan teknis membuat alat peraga IPA dengan memanfaatkan barang yang murah atau barang yang tidak terpakai, kami menawarkan solusi guna meningkatkan kemampuan dan ketrampilan guru dengan memberi pelatihan dan bimbingan teknis yang meliputi: a). cara mengunduh materi pembelajaran IPA (Buku BSE, youtube,power point, animasi) dari internet. b) Memberi bimbingan teknis pembuatan alat peraga IPA. Desain penyampaian materi pelatihan dan bimbingan teknis dengan enggunakan metode ,antara lain: a) Menyampaikan tujuan PKM, b) Mendemonstrasikan Keterampilan penggunaan alat peraga IPA, c) Pelatihan dan bimbingan teknis pembuatan alat peraga IPA dan sekaligus menyusun lembar kerja siswa, d) Mengecek dan umpan balik dari materi yang telah disampaikan dan e) diskusi Pelatihan lanjutan dan penerapan. Desain materi pelatihan dan bimbingan teknis di atas diharapkan dapat,meningkatkan pengetahuan, pengalaman, ketrampilan dan kemampuan guru pembuatan alat peraga IPA dan penyampaian materi kepada siswanya,

Pemasangan Lampu Sorot dan Led Strip Dengan Pengoperasian Otomatis di Gapura Klaster SPI Sukun Kota Malang Muhammad Fahmi Hakim; Imron Ridzki; Sukamdi; Mudjiono; Bakti Indra Kurniawan
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021)
Publisher : Politeknik Negeri Malang

Installation of spotlights and LED strips with automatic operation at the entrance gate of the SPI Cluster RT.10 RW.04 Bandungrejosari Village, Sukun District Malang City is based on the absence of lighting contained in the writing of the Sukun Pondok Indah Cluster (SPI) so that many guests or couriers who are not aware of the housing. With the installation of spotlights and LED strips, it is hoped that the writing on the gate of the Sukun Pondok Indah cluster will be bright and visible so that guests or couriers can immediately know about the housing. Then people can see when installing spotlights and LED strips with automatic operation, they hope that people can install lighting installations automatically in their respective homes correctly and according to standards. Then people do not need to operate the ON / OFF spotlights and LED strip every day. That way, the benefits of installing spotlights and LED strips with automatic operation, people don't need to ON / OFF the lighting every time.

Rancang dan Bangun Mesin Filling Sari Kedelai dengan Pneumatik Tresna Umar Syamsuri; Rahma Nur Amalia; Mudjiono
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : Politeknik Negeri Malang

Currently, the industry is required to work quickly, optimally, and produce products in large and accurate quantities. Due to the high demand, home industries with simple technology are required to produce a lot of goods. One example of a household industry that has a lot of demand for its products is the soybean juice beverage industry. However, in the process of filling soy juice drinks into bottles, there are several shortcomings, including the process is still manual, spills easily, the amount of liquid is not appropriate or not constant, takes a long time, and drains a lot of energy. To maximize production results, a machine with a pneumatic system was made, where this system uses compressed air as the working medium and electricity as the control medium. The design of this filling machine is carried out using several methods such as observation, literature study, and making designs. Soybean filling machine is a tool produced in this study. The operation of the machine can be semi-automatic and automatic has a high level of accuracy and has an error of about 0.045%-0.09%. This filling machine can fill bottles with sizes ranging from 250 ml to 800 ml, besides that this machine is also equipped with a bottle counter that is already filled with drinks. The application of filling machines in home industries has the potential to increase the productivity of soybean juice drinks and the income of their owners.

Rancang Bangun Alat Monitoring Daya Listrik di Asrama Berbasis Web Menggunakan ESP32 Tresna Umar Syamsuri; Rahma Nur Amalia; Mudjiono; Aly Imron
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : Politeknik Negeri Malang

This study aims to design and build tools that can measure current, voltage, and electricity in the dormitory using a current sensor and voltage sensor controlled by a microcontroller. This device can be monitored and controlled on a real-time scale through the Blynk website and displayed through the LCD size. The tools that were built were placed centrally in the dormitory. Through the Blynk website, the dormitory owner gets the authority to determine the limit of the use of electricity in a room and increase the number of rooms as much as needed, while the room owner can monitor the mutation of electricity use. Every time the total power reaches the upper limit, relay will be active to decide on the electric current. This device is expected to be able to help the homeowner of the dormitory in calculating the cost of monthly electricity tokens. The simulation is carried out using a dormitory house model consisting of three rooms with a maximum power of 500 VA per room. Load simulation using lamps, fans, laptops, etc. The test results show a difference in sensor accuracy. The current sensor ACS712 in room 1 has a percentage of error of 11.88%, room 2 has 10.63%, and room 3 has 9.38%. Three ZMPT101B voltage sensors, considered quite accurate with a percentage of error 0.16%. So that the power value obtained has a percentage of power error for room 1 has 24.30%; Room 2 has 13.24%; While room 3 has 18.76%.

Perencanaan Rekonfigurasi Penyulang Mojoanyar Dengan Pengalihan Beban Ke Penyulang Elkishi Di Daerah Kawasan Industri Mojosari Pada PT PLN (Persero) UP3 Mojokerto Mochammad Mieftah; Heri Sungkowo; Mudjiono
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : Politeknik Negeri Malang

Mojosari is a customer area consisting of industrial customers and high power customers. Currently, the demand for electrical energy in the area is supported by the Mojoanyar Feeder, which is supplied by the Transformer I Pulling Substation I with a capacity of 30 MVA. The reconfiguration of the feeder was carried out for several reasons, one of which was the addition of power from an industrial customer in the Mojoanyar Feeder area of PT PLN (Persero) ULP Mojosari, namely PT Sinar Karya Duta Abadi (Arwana). If there is additional power, the additional load capacity also increases in a feeder. If the load capacity increases, the current flowing in the conductor also increases. It can be seen from the loading data in February 2021 that the maximum current flowing in the Mojoanyar Feeder during the day is 210 A, the maximum current flowing in the Mojoanyar Feeder at night is 215 A. And if there is a disturbance near the area, the Mojoanyar Feeder will not maneuver because the load is close to the maximum. Therefore, PT PLN (Persero) ULP Mojosari plans a reconfiguration of the feeder by transferring the burden of the Mojoanyar feeder.The analysis was carried out using the simulation program ETAP Power Station 12.6.0. and manual calculations according to standards. After being reconfigured, the Mojoanyar Feeder experienced a decrease in the value of the voltage drop from 8.78% to 7.86%. Mojoanyar feeders experienced a decrease in losses of 5.84% compared to before the reconfiguration of 10.4%

Analisis Pengaruh Penambahan Suplai Daya 1000 MW Terhadap Performansi Jaringan Backbone 500 kV Mudjiono; Imron Ridzki; Priya Surya Harijanto
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v8i1.39

Based on the Decree of the Minister of Energy and Mineral Resources (ESDM) Number 0074.K / 21 / MEM / 2015 concerning the Ratification of the 2016-2025 Electricity Supply Business Plan (RUPTL), the load growth every year has increased. Therefore, there will be additional Generating Units with a capacity of 1000 MW at PLTU Paiton, it is necessary to analyze the effect of additional loads in 2017 - 2022 on the 500 KV GITET system before and after the addition of a 1000 MW generator. Based on the analysis, it is known that the additional power of 1000 MW will strengthen the Paiton GITET reserve margin in bearing the load growth, it can be seen from the reserve margin value before the addition of power plants by 16% and after the addition of 29%. For the ability of the Paiton - Grati GITET transmission line until 2022, the load is 62% with a power loss of 35.41 MW (2.85%) and the load on the Paiton - Kediri GITET transmission line is 62% with a power loss of 35.41 MW (2.85%) indicates that the channel still in good shape. In addition, the load condition for the IBT transformer until 2022 is 84%, it can be concluded that the transformer is in good condition

Analisis Keseimbangan Beban dan Harmonisa Di Gedung Graha Polinema Ahmad Hermawan; Mudjiono; Chandra Wiharya; Siffa Seftiana
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v8i3.76

A large load imbalance is caused by the use of single-phase loads in a three-phase system, and poor harmonics are caused by non-sinusoidal loads, which result in losses in the network and poor quality of power distribution. This study aims to monitor and analyze load balance and harmonics in the Graha Polinema Building at Politeknik Negeri Malang. The research is a survey and case study using primary data obtained through direct measurement using a Web-Based Power Quality Meter (PM 5110) to gather data from each SDP panel, and secondary data through observation. From this study, the highest current imbalance value of 133.50% was found in the North 4th Floor SDP Panel of the Grapol Building, exceeding the IEEE 1159-2009 standard, which sets the limit for load imbalance at 30%. Current Harmonic Distortion (IHD) occurred in 8 SDP panels, except for the North and South Water Pump Panels. Total Demand Distortion (TDD) for all panels was within the standard limits. Total Harmonic Distortion (THDv) for all panels was also within the standard limits, with the highest value of 2.37% found in the North 4th Floor Panel.

Aplikasi Particle Swarm Optimization Pada Pemasangan Kapasitor Bank Pada Jaringan Distribusi Mudjiono; Priya Surya Harijanto; Imron Ridzki
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v8i3.81

The length of conductor paths in distribution networks often leads to voltage drop issues and significant network losses. Placing capacitor banks in the distribution network is the primary solution to address these problems. However, optimizing the installation to achieve a significant impact on the voltage level in the network requires complex calculations, especially for very long lines such as in the 20 kV medium voltage network. This paper will use a 20 kV primary distribution system with 10 buses and 9 lines. Based on operational conditions, there are several issues that need to be addressed, and their solutions will be sought through heuristic methods.

Co-Authors Abdullah Mas’ud Ahmad Hermawan Aly Imron Awan Setiawan Bakti Indra Kurniawan Chandra Wiharya Fahmi Hakim, Muhammad Irwan Heyanto/Eryk Mochammad Mieftah Priya Surya Harijanto Rahma Nur Amalia Ridzki, Imron Satrio Pamungkas Bayu Aji Wibowo Siffa Seftiana Sukamdi Sungkowo, Heri Tresna Umar Syamsuri Yunia Mulyani Azis

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