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Perancangan Time Synchronization sebagai Alat Bantu Pengujian Intertrip Relay Distance Ryan Wicaksono; R. Jasa Kusumo Haryo; Basuki Winarno; Yuli Prasetyo; Dimas Nur Prakoso
Nusantara: Jurnal Pengabdian kepada Masyarakat Vol. 6 No. 1 (2026): Februari: NUSANTARA Jurnal Pengabdian Kepada Masyarakat
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/nusantara.v6i1.7422

At the company PT. PLN (Persero) ULTG Madiun carried out many tests relay, one of which is intertrip testing relay distance. Intertrip testing relay distance is a test carried out between 2 (two) relay distance conducting bays in main substations that face each other. Intertrip testing relay distance must be done if replacement occursrelay, replacement of teleprotection equipment, changes to protection schemes, and changes to logic circuitsrelay which is related to the send or receive signal from the opposite substation. However, this test requires synchronization between two intertrip test tools relay distance at each substation. In this final project, it will be designed Time Syncronization As A Tool For Intertrip Relay Distance Testing, to make things easier for PT employees. PLN (Persero) ULTG Madiun when synchronizing two intertrip test equipment relay distance. All process control of this tool uses ESP32 Devkit V1. Meanwhile for displaying setting time for testing can be seen on the web assisted by GPS NEO-6M. The results obtained when testing the Dolopo by Ponorogo R and S phase distance intertrip relay were carried out at 12.00.00, experiencing a delay time of 0.0553 seconds when the PMT tripped. Meanwhile, the Dolopo by Ponorogo T phase distance intertrip relay test was carried out on 12.09.00 and experienced a delay of 0.0529 seconds when the PMT tripped. From two intertrip relay distance tests, the trip time delay is no more than 0.1 second.

Enhancing Power Factor Performance of Capacitor Bank Systems through Control Circuit Reconfiguration Yuli Prasetyo; Budi Triyono; Dimas Nur Prakoso; Santi Triwijaya; Muhammad Marco Dwi Yoga
International Journal of Engineering Continuity Vol. 5 No. 1 (2026): IJEC
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v5i1.454

This study investigates a practical method to enhance the efficiency of a campus electrical distribution system by optimizing the control and power circuitry of a capacitor bank panel. The research addresses the persistent issue of low power factor and phase imbalance resulting from non-standard wiring configurations in existing installations. Unlike conventional maintenance procedures, the proposed rewiring strategy systematically redesigns the control and power connections to ensure accurate capacitor switching and reactive power compensation in accordance with operational load variations. A diagnostic improvement evaluation framework was employed, involving pre- and post-rewiring measurements of power factor, load current balance, and reactive power under both normal and full-load conditions. The rewiring intervention increased the power factor from 0.97 to 0.99 during normal operation and from 0.70 to 0.95 under full-load simulation (1100 kVA). These improvements corresponded to a measurable reduction in reactive power demand and overall system losses, indicating a substantial gain in energy efficiency and voltage stability. The findings confirm that targeted control circuit reconfiguration can significantly enhance the operational reliability of capacitor bank systems beyond conventional maintenance practices. This work contributes a replicable, technically validated approach for improving power quality in educational and industrial electrical installations.

Rancang Bangun Kapasitor Bank Menggunakan PLC dengan Beban 3 Fasa Dimas Nur Prakoso; Yuli Prasetyo; Budi Triyono; Hanifah Nur Kumala Ningrum; Renna Melinda
Jurnal JEETech Vol. 6 No. 1 (2025): Nomor 1 May
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/jeetech.v6i1.6104

Biaya produksi merupakan hal yang harus diperhatikan dalam suatu industri. Biaya produksi tersebut disebabkan salah satunya karena kualitas daya seperti faktor daya dan rugi-rugi daya. Pemakaian beban induktif seperti motor induksi dan tranformator dapat menyebabkan kelebihan pemakaian daya reaktif, dan akan berdampak pada meningkatnya denda PLN yang harus dibayar apabila power factor < 0,85. Hal ini dapat diatasi dengan pemasangan beban yang bersifat kapasitif seperti kapasitor bank untuk menurunkan biaya pemakaian KVAR dan meminimalisir drop tegangan. Tujuan penelitian ini adalah pengoptimalan penggunaan kapasitor bank menggunakan PLC. Stepping otomatis menggunakan cos φ meter sebagai input analog PLC yang akan digunakan untuk penentuan metode yang sesuai dan mengaktifkan kapasitor. Stepping manual dilakukan dengan menekan tombol switch untuk mengaktifkan kapasitor. Hasil dari pengujian, baik stepping manual maupun otomatis sesuai dengan program PLC dan display. Metode sudah dapat bekerja secara otomatis dan penentuan akan sesuai dengan kombinasi kapasitor. Dengan hasil cos φ pada motor 1 yang awalnya sebesar 0,56 menjadi naik sebesar 0,86, pada motor 2 nilai cos φ yang awalnya sebesar 0,74 menjadi naik sebesar 0,93, pada motor 3 nilai cos φ yang awalnya sebesar 0,6 menjadi naik sebesar 0,97 dan pada motor 4 nilai cos φ yang awalnya sebesar 0,65 menjadi naik sebesar 0,95

SISTEM CHARGING 110 VDC SEBAGAI SUPPLY CONTROL CIRCUIT VOLTAGE KUBIKEL 20 KV Dimas Nur Prakoso; Yuli Prasetyo; Basuki Winarno; Budi Triyono; Santi Triwijaya
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 6 No 2: Jurnal Electron, November 2025
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v6i2.322

The 110VDC supply at the substation serves as a supply for the control and protection system at the cubicle panel. In addition, the 110VDC battery used as a backup supply plays an important role when the main supply source is lost. Loss of supply 110VDC is fatal to the electrical system. Causes electrical interference cannot be monitored and protection failure. 110VDC batteries may experience voltage drops. There are several ways to keep the battery in good condition when used, one of them with a charging system which functions to maintain the condition battery. This system uses a Buck converter circuit with charging pulses through the duty cycle can distribute high electric current to battery. With a Buck converter output voltage of 111 Volt 6.54 A at duty cycle 55% using dummy load. Test results with a voltage of 110VDC and a current of 5A in testing with dummy load of 10Ω480W obtained voltage output of 103VDC and current of 8.40A, in testing with dummy load of 10Ω400W received voltage output of 136VDC and current of 6.28A, in testing with dummy load of 12Ω500W received voltage output of 122VDC and current of 6.00 A, in testing with dummy load of 15Ω500W received voltage output of 127VDC and current of 5.88 A, in testing with dummy load of 11Ω500W received voltage output of 111VDC and current of 6.54A. From the overall test data by providing a load in the form of a dummy load, an average error of 9.86% was obtained.

Perancangan dan Pengujian PLTS Off-Grid Portabel Berbasis IoT untuk Aplikasi Darurat Infrastruktur Transportasi Budi Triyono; Dimas Nur Prakoso; Yuli Prasetyo; Basuki Winarno; Ryan Wicaksono; Santi Triwijaya; Satrio Nugroho
Nucleus Journal Vol. 5 No. 1 (2026)
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/nucleus.v5i1.5109

Ketersediaan catu daya yang andal pada infrastruktur transportasi sangat penting untuk menjaga keselamatan, ketertiban, dan kontinambungan layanan, khususnya pada kondisi darurat ketika pasokan listrik dari jaringan terganggu. Penelitian ini bertujuan merancang dan menguji sistem Pembangkit Listrik Tenaga Surya (PLTS) off-grid portabel berbasis Internet of Things (IoT) sebagai sumber daya darurat untuk infrastruktur transportasi berkelanjutan. Metode penelitian menggunakan pendekatan rekayasa sistem yang meliputi studi literatur, perancangan perangkat keras, integrasi sistem monitoring IoT, perakitan prototipe, serta pengujian laboratorium dan lapangan. Sistem yang dikembangkan terdiri atas tiga panel surya dengan total kapasitas 300 Wp, baterai lithium 12 V 100 Ah, solar charge controller PWM 20 A, inverter 1000 W, serta dashboard monitoring berbasis Ubidots. Hasil pengujian menunjukkan bahwa tegangan keluaran panel surya berada pada rentang 19,5–20,5 V dengan daya tertinggi mencapai 89,3 W pada pukul 11.00. Tegangan keluaran solar charge controller relatif stabil pada rentang 13,37–13,43 Vdc selama proses pengisian. Pada pengujian baterai saat pelepasan beban, tegangan menurun dari 13,46 Vdc menjadi 13,37 Vdc, diikuti penurunan tegangan AC inverter dari 205 Vac menjadi 198 Vac. Sistem IoT berhasil menampilkan parameter kelistrikan secara real-time, meliputi tegangan, arus, daya, status charging-discharging, dan state of charge baterai. Hasil penelitian menunjukkan bahwa sistem yang dikembangkan layak digunakan sebagai solusi catu daya darurat yang portabel, efisien, dan mudah dipantau

Peningkatan Produktivitas Penjualan UMKM Kerajinan Kulit Akasia Industry melalui Live Streaming Interaktif dan Manajemen Campaign Marketplace Handika Asep Kurniawan; Sasmito Widi Nugroho; Dimas Nur Prakoso; Zaenal Alwan Said; Berliana Arieska Budianto
KREATIF: Jurnal Pengabdian Masyarakat Nusantara Vol. 6 No. 2 (2026): Jurnal Pengabdian Masyarakat Nusantara
Publisher : AMIK Veteran Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/kreatif.v6i2.11777

This community service program aimed to improve the sales productivity of Akasia Industry, a leather craft small and medium enterprise (SME) located in Ringinagung Village, Magetan Regency, East Java, through the implementation of interactive live streaming and structured marketplace campaign management. The partner has operated since 2019 with 15 workers and a production capacity of 2-5 products per day, with a monthly revenue baseline of IDR 10,000,000 and approximately 100 transactions per month. The program applied a participatory action research (PAR) approach implemented across five stages: socialization and baseline mapping, technology procurement and studio setup, training, mentoring and evaluation, and program sustainability. Key outputs included a 2x2-meter mini live studio equipped with Sony ZV-E10 camera, Boya BY-V10 microphone, and LED lighting; standardized live streaming SOPs and host scripts; product photo guidelines; and structured monthly campaign calendars. Post-program outcomes showed a significant improvement in multi-platform digital presence: TikTok @akasiaindustry reached 3,655 followers with videos garnering up to 81,000 views; Instagram @akasiaindustry grew to 1,839 followers; the Shopee store achieved a 98.6% positive review rate with successful flash sale campaigns at 49% discount; and the Tokopedia store listed standardized handmade vegetable-tanned leather products. Monthly transactions increased from 100 to an estimated 160-220 orders, with market reach expanding beyond Magetan Regency.

Setting Relay Diferensial Siemens 7UT5121 pada Transformator dengan ETAP untuk Meningkatkan Sistem Proteksi Dimas Nur Prakoso; Yuli Prasetyo; Budi Triyono; Basuki Winarno
Jurnal FORTECH Vol. 7 No. 1 (2026): In Progress
Publisher : FORTEI (Forum Pendidikan Tinggi Teknik Elektro Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56795/fortech.v7i1.7102

The development of the electric power system is quite rapid in Indonesia, where the development of the electric power system will not experience a decline and will continue to increase. To distribute electrical energy to consumers, transformers are the main component in the electrical system. During its operation, transformers often experience faults, making reliable protection and security systems necessary to maintain the smooth operation of the system. Protection systems are designed to interrupt faulty currents and protect equipment from damage caused by these currents. One of the primary protection devices for transformers is the differential relay, which operates quickly without requiring coordination with other relays. Differential relays work based on the vector difference between two or more electrical quantities exceeding a predetermined threshold. In this study, a Siemens 7UT5121 protection relay was used. To facilitate testing and fault analysis in the settings of this protection relay, simulations were conducted using ETAP software. The protection relay settings were configured to safeguard the transformer if there was a current difference between the CT on the primary and secondary sides within the protection zone. Based on calculations, the CT ratio for nominal current (I₁) was found to be 230.94 A, and the nominal current (I₂) was 1905.25 A. The CT secondary currents were calculated as 0.769 A for I₁ and 0.866 A for I₂. In the differential relay, the differential current was recorded at 0.097 A, while the restrain current was 0.817 A. The slope percentage analysis yielded values of 11.18% for slope 1 and 23.74% for slope 2. The differential current setting value obtained was 0.379 A. The relay will not operate if a fault occurs outside the protection zone, ensuring the reliability of the transformer protection system

Setting Relay Diferensial Siemens 7UT5121 pada Transformator dengan ETAP untuk Meningkatkan Sistem Proteksi Dimas Nur Prakoso; Yuli Prasetyo; Budi Triyono; Basuki Winarno
Jurnal FORTECH Vol. 7 No. 1 (2026): In Progress
Publisher : FORTEI (Forum Pendidikan Tinggi Teknik Elektro Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56795/fortech.v7i1.7102

The development of the electric power system is quite rapid in Indonesia, where the development of the electric power system will not experience a decline and will continue to increase. To distribute electrical energy to consumers, transformers are the main component in the electrical system. During its operation, transformers often experience faults, making reliable protection and security systems necessary to maintain the smooth operation of the system. Protection systems are designed to interrupt faulty currents and protect equipment from damage caused by these currents. One of the primary protection devices for transformers is the differential relay, which operates quickly without requiring coordination with other relays. Differential relays work based on the vector difference between two or more electrical quantities exceeding a predetermined threshold. In this study, a Siemens 7UT5121 protection relay was used. To facilitate testing and fault analysis in the settings of this protection relay, simulations were conducted using ETAP software. The protection relay settings were configured to safeguard the transformer if there was a current difference between the CT on the primary and secondary sides within the protection zone. Based on calculations, the CT ratio for nominal current (I₁) was found to be 230.94 A, and the nominal current (I₂) was 1905.25 A. The CT secondary currents were calculated as 0.769 A for I₁ and 0.866 A for I₂. In the differential relay, the differential current was recorded at 0.097 A, while the restrain current was 0.817 A. The slope percentage analysis yielded values of 11.18% for slope 1 and 23.74% for slope 2. The differential current setting value obtained was 0.379 A. The relay will not operate if a fault occurs outside the protection zone, ensuring the reliability of the transformer protection system

Implementasi Penerangan Jalan Umum Tenaga Surya pada Jalan Usaha Tani di Desa Dadapan, Kabupaten Ngawi Budi Triyono; Prasetyo, Yuli; Basuki Winarno; Dimas Nur Prakoso; Hanifah Nur Kumala Ningrum; Raden Jasa Kusumo Haryo; Satrio Nugroho
Jurnal Pelayanan dan Pengabdian Masyarakat Indonesia Vol. 5 No. 3 (2026): September : Jurnal Pelayanan dan Pengabdian Masyarakat Indonesia
Publisher : Sekolah Tinggi Ilmu Administrasi Yappi Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jppmi.v5i3.2945

Dadapan Village, specifically Ngrancang Hamlet, is an agricultural area where most farm access roads lack adequate public street lighting. This condition hinders farmers' activities during the night and early morning such as irrigation, fertilization, and crop distribution and poses safety risks. This community service initiative aims to transfer solar-powered street lighting technology to the Ngudi Rahayu Farmer Group to enhance road safety and foster village energy self-sufficiency. The implementation process comprises five stages socialization, training, technology deployment, mentoring and evaluation, and program sustainability carried out collaboratively by lecturers, students, and farmer group members. The technology deployed involves installing two solar-powered street lighting units integrating monocrystalline solar panels, lithium batteries, LED lights, and automatic light sensors along a 300-meter stretch of farm access road. The results indicate that both units are successfully installed and fully functional, automatically illuminating for 10–12 hours without reliance on the national grid (PLN). The installation of these lights enhances safety and convenience for farmers, facilitates crop distribution, and improves the partners' understanding of renewable energy solutions that are self-sufficient, cost-effective, and environmentally friendly.

Design of an IoT System for Real-Time Power Quality Monitoring in Electric Power Distribution Systems Yuli Prasetyo; Budi Triyono; Dimas Nur Prakoso
Nucleus Journal Vol. 5 No. 2 (2026)
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/nucleus.v5i2.5205

This paper presents the design, implementation, and experimental validation of a low-cost Internet-of-Things (IoT) gateway for real-time power quality (PQ) monitoring of industrial distribution panels. The proposed system acquires electrical parameters—phase voltages, line current, active power, and energy consumption—from commercially available powermeters (Schneider Electric PM5560 and Siemens SMART 7KT) via the Modbus RTU protocol over RS-485 serial links. An ESP32 DevKit V4 microcontroller serves as the gateway node, forwarding sensor data to the Google Firebase Realtime Database over Wi-Fi using the HTTPS protocol. A modular PHP-based web dashboard visualises the live and historical PQ data, generates automated daily email reports through a server-side cron job, and issues alarm notifications within 8 s of threshold exceedance. The gateway is positioned as a retrofit enabler for medium-voltage (MV) feeders that supply sustainable transportation infrastructure such as electric-vehicle chargers and urban-rail substations. Experimental validation on a live 20 kV MV distribution panel confirms a measurement accuracy of 99% relative to the Class 0.5S powermeter reference across all voltage channels. The dashboard data refresh latency is 5 s, and the Firebase Realtime Database synchronisation rate reaches 114 allowed transactions per monitoring session without data loss. The complete gateway hardware cost is under USD 4, making the approach economically viable for retrofitting legacy industrial monitoring installations

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