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All Journal Jurnal Pengabdian kepada Masyarakat ELPOSYS: Jurnal Sistem Kelistrikan
Anang Dasa Novfowan
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Agriculture, Biological Sciences & Forestry Humanities Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences Other

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Analisis Koordinasi Relai Proteksi Transformator I 150/20kV GI Bumicokro Akibat Uprating Daya 50MVA Menjadi 60MVA Anang Dasa Novfowan; Mochammad Mieftah; Heri Sungkowo
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 2 (2023): ELPOSYS vol. 10 no. 2 (2023)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v10i2.2521

Abstract

Nowadays, Electricity is a important thing for people. As the load grown at the Bumicokro Substation, transformer I had replaced from 50 MVA to 60MVA. Because of that, the relays protection had to be resetting because of the changes of nominal current. Therefore, the objectives of this research are calculated and simulated the setting of OCR (Over Current Relay), GFR (Ground Fault Relay), SBEF (Stand by Earth Fault), differential and REF (Resistance Earth Fault) relay. ETAPv12.6 software is used to get the relay coordination Outgoing 22kV, Incoming 150kV, OCR (Over Current Relay), GFR (Ground Fault Relay), SBEF (Stand by Earth Fault), differential and REF (Resistance Earth Fault) after the calculation and simulation finished, then the result indicated the appropriate conditions to overcome the distrubance at the transformer according to the protection zone. The result of current setting for Differential relay is 2,88A, Primary REF is 0,5A, Secondary REF is 1,1A, 150kV OCR is 3,5A, and the moment setting is 28A, 22kV OCR 150kV 4,7A, GFR 1,44A, SBEF 1,0A. While, the result of time setting for Differential relay, Primary REF, Secondary REF are instant, for 150kV OCR is 1,06s, 22kV OCR is 1,07s, GFR 1,51s, and SBEF 8,8s.
Power Line Carrier (PLC) sebagai Media Pendeteksi Phasa Pelanggan Tegangan Rendah Anang Dasa Novfowan; Mochammad Mieftah; Wijaya Kusuma; Slamet Nurhadi
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 3 (2023): ELPOSYS vol. 10 no. 3 (2023)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v10i3.4166

Abstract

With so many distribution substations and the number of household customers, most of whom are single-phase low voltage customers, customer phase verification becomes very important in the load balancing proces. The customer phase detection system that has been studied previously, using radio frequency communication media over the air, is considered less valid if used in border areas between 2 (two) distribution substations. It is felt that the low voltage customer phase detection method will be more valid if it is carried out via Power Line Carrier (PLC) media, namely data communication via electrical lines. And this system consists of two devices, namely a transmitter (called the Master) which is installed on the LV Panel and a receiver (called the Slave) which is carried by the mobile to the detected phase point Short distance phase detection using Power Line Carrie from transmitter to receiver has a 100% success rate in one sub-panel with a transfer speed of 9600 baudrate, with an average detection time for short distances of 5 seconds. For long distance detection, sometimes the detection time is relatively long (± 120 seconds) or even failed, possibly due to the quality of the connection along the conductor being detected, thus causing noise in the network.
Sistem Otomatis Penyimpanan Data Pendeteksi Fase Pelanggan Tegangan Rendah Anang Dasa Novfowan; Mochammad Mieftah; Slamet Nurhadi
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 3 (2024): ELPOSYS vol. 11 no. 3 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i3.6251

Abstract

Inaccurate phase detection due to manual data recording often led to errors, impacting load balancing processes in electrical distribution. This research aimed to develop an automated phase detection system for low-voltage customers, utilizing a MicroSD-Card for data storage to reduce human error and enhance data reliability. The device used Power Line Carrier (PLC) communication technology integrated with customer identity (ID PEL) and employed Arduino Uno for phase data processing. The research method involved designing and testing phase detection and data storage functions across various distances to assess system accuracy. Findings indicated the system accurately detected customer phases and stored data efficiently, with minor delays only at longer distances. This automated solution effectively minimized manual errors in phase data entry. Future applications of this system could significantly improve load balancing accuracy and data management in electrical distribution networks
PELATIHAN DESAIN DAN INSTALASI AUTOMATIC FISH FEEDER PADA BUDIDAYA IKAN DI PERUMAHAN BUKIT CEMARA TIDAR Hanifiyah Darna Fidya Amaral; Rahma Nur Amalia; Galuh Prawestri Citra Handani; Afidah Zuroida; Dhimas Dhesah Kharisma; Anang Dasa Novfowan
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 4 No. 7: Desember 2024
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v4i7.8888

Abstract

Pemberian pakan ikan merupakan kegiatan yang memerlukan konsistensi baik dalam waktu pemberian pakan dan jumlahnya. Budidaya ikan di Perum. Bukit Cemara Tidar masih menggunakan sistem manual, yang menyebabkan pembudidaya harus mengatur jadwal untuk pemberian pakan. Sistem pemberian pakan secara manual masih banyak memiliki kekurangan seperti jumlah pakan yang tidak sesuai takaran dan waktu pemberian pakan yang tidak teratur. Ketidakteraturan pemberian pakan ini mempengaruhi kualitas ikan dan biaya pembelian pakan. Untuk mengatasi permasalahan tersebut, maka tujuan kegiatan Pengabdian Pada Masyarakat ini dengan memberikan pelatihan desain dan instalasi alat pakan ikan secara otomatis (automatic fish feeder). Alat ini memudahkan pembudidaya dalam mengatur proses pemberian pakan sehingga dapat menjaga kualitas budidaya ikan dan penghematan biaya pakan. Metode kegiatan yang dilakukan adalah pelatihan dan pendampingan. Peserta diberikan ketrampilan dalam merancang automatic fish feeder, cara pengoperasian dan perawatan. Terdapat 2 alat yang terpasang pada kolam ikan. Berdasarkan pengujian kinerjanya, alat ini sudah bekerja sesuai fungsinya dimana dalam kurun waktu sehari setiap pukul 08:00 dan pukul 15:00 alat akan bekerja untuk memberi pakan pada ikan, waktu aktif servo sudah sesuai perencanaan yaitu 1 menit dengan range berat pakan yang dikerluarkan seberat 18 gram.
Pemodelan Kurva Pembebanan Transformator Distribusi Berdasarkan Variasi Penetrasi PLTS Atap Galuh Prawestri Citra Handani; Rahman Azis Prasojo; Nurfi Fuad Al Azah; Salman Alfarisi; Anang Dasa Novfowan; Afidah Zuroida; Rahma Nur Amalia; Rhezal Agung Ananto; Arinalhaq Fatachul Aziiz
Elposys: Jurnal Sistem Kelistrikan Vol. 12 No. 2 (2025): ELPOSYS vol. 12 no. 2 (2025)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v12i2.7326

Abstract

Transformers are considered important equipment in the power distribution system. Determining the state of the distribution network loading curve a network model to analyze the impact of the rooftop PV system penetration level. The assumption of penetration is 10% - 100% and based on the amount of transformer power according to the nameplate, which is 160 kVA. The transformer that used is GTT BB1215, which is one of the distribution transformers in the PT PLN (Persero) UP3 South Surabaya. The loading curve modeling uses DIgSILENT PowerFactory 2021 software with the Quasi-Dynamic Simulation feature. Based on the average loading curve of GTT BB1215 for 14 days, there is a fluctuation, starting at 00.00 a.m - 06.00 a.m the load will decrease, the load will increase again at 06.00 a.m – 07.00 p.m, and the peak load at 06.00 p.m - 07.00 p.m with a current of 140 A (96 kW) or 60% of the transformer capacity load. The lowest load occurs at 06.00 a.m with a current of 94 A (65 kW) or 40% of the transformer capacity load. At a penetration level of 10% - 40%, the transformer load decreases significantly. However, when the penetration level exceeds 40%, there is a reverse power flow from the rooftop PV system to the transformer. This condition make the current to continue flowing even though the load on the transformer has reached 0, because the current represents the power flow from the rooftop PV system to the network, not from the customer load.
Evaluasi dan Mitigasi Distorsi Harmonisa Transformator 1250 kVA Beban Motor Pompa Air Anang Dasa Novfowan; Mochammad Mieftah; Dhimas Dhesah Kharisma
Elposys: Jurnal Sistem Kelistrikan Vol. 12 No. 2 (2025): ELPOSYS vol. 12 no. 2 (2025)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v12i2.7330

Abstract

As a fundamental part of modern life, electricity must be both reliable and efficient—qualities that can be affected by issues like voltage unbalance and harmonic distortion. This study investigates power quality in a 1250 kVA transformer that supplies continuous power to water pump motors at PDAM Wendit, which operate 24 hours a day. Data were collected using the Power Logic PM5100, while a passive filter design was developed and tested through simulations in Matlab/Simulink.The results show a Voltage Unbalance Factor (VUF) of 0,32%, which falls within the acceptable range according to NEMA standards. However, the Total Harmonic Distortion of Voltage (THDV) was found to be between 8% and 9,2%, exceeding the 8% limit recommended by IEEE 519-2014. The average power factor measured was 0,9. To address the excessive harmonic distortion, a single-tuned passive filter was designed targeting the dominant third-order harmonics. Simulations revealed that the filter successfully lowered the THDV to below 6% and reduced current by 1,5% to 3,4%. These findings highlight the importance of harmonic mitigation not only in meeting regulatory standards but also in improving energy efficiency, reducing power losses, and ensuring longer operational life for critical equipment like water pump motors.
Co-Authors Abd. Rasyid Syamsuri Afidah Zuroida Amaral, Hanifiyah Darna Fidya Ananto, Rhezal Agung Arinalhaq Fatachul Aziiz Dhimas Dhesah Kharisma Galuh Prawestri Citra Handani Kharisma, Dhimas Mochammad Mieftah Nurfi Fuad Al Azah Rachmat Sutijpto Rahma Nur Amalia Rahman Azis Prasojo Salman Alfarisi Slamet Nurhadi Sungkowo, Heri Wijaya Kusuma