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All Journal GERVASI: Jurnal Pengabdian kepada Masyarakat JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) ELPOSYS: Jurnal Sistem Kelistrikan
Resi Dwi Jayanti Kartika Sari
Universitas Merdeka Malang
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Rancang Bangun Elektronik Motor Relay sebagai Proteksi Berbagai Gangguan Motor Listrik Resi Dwi Jayanti Kartika Sari; Yahya Chusna Arief; Suryono Suryono
JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Vol. 4 No. 2 (2022): Desember 2022
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jasiek.v4i2.8921

Abstract

The protection system against disturbances in induction motors has an important role in industry. In general, protection in electrical installations only uses MCB (Miniature Circuit Breaker) and fuses which can only protect against overcurrent and short circuits and there are still many kinds of important protection that have not been covered in it even though along with technological developments many electronic protection devices have been created. The purpose of this final project is to plan and manufacture electronic motor relays against over load, phase loss, phase reverse, phase unbalance, short circuit, ground fault, and locked rotor disturbances. The AVR microcontroller is used as a controller for all systems in detecting disturbances. Where the current setting range and trip time are programmed using the C language which is operated with a keypad and displayed on the LCD. As current and voltage sensing using current transformers and voltage transformers. As for sensing phase reverse, it takes the signal from the differential amplifier and forwards it to zero crossing, trigger and X-or. Testing the accuracy of the electronic motor relay is carried out in each fault. The data obtained shows that the microcontroller can be used as a precision analog voltage controller. This is because the AVR microcontroller has good features and is supported by adequate processor speed for use in this kind of application.
Pelatihan Pembuatan dan Penggunaan Panel Surya Pada Siswa Sekolah Menengah Pertama Aries Boedi Setiawan; Rifki Hari Romadhon; Basitha Febrinda Hidayatulail; Resi Dwi Jayanti Kartika Sari
GERVASI: Jurnal Pengabdian kepada Masyarakat Vol. 7 No. 2 (2023): GERVASI: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM IKIP PGRI Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31571/gervasi.v7i2.5478

Abstract

Perkembangan teknologi terutama panel surya sangat dibutuhkan dalam dunia industri maupun pendidikan, dengan adanya panel surya diharapkan dapat menjadi energi alternatif dalam menghasilkan arus listrik. Program pelatihan kemitraan masyarakat (PKM) ini bertujuan untuk mengenalkan proses terjadinya panel surya kepada siswa Sekolah Menengah Pertama Bani Hasyim dan memberikan contoh panel surya sehingga dapat digunakan oleh pihak sekolah. Kegiatan ini diikuti oleh 15 orang peserta terdiri dari siswa dan siswi SMP Bani Hasyim. Pelatihan dilakukan dalam kurun waktu satu hari, pada tanggal 1 April 2022. Metode pelaksanaan pengabdian yaitu sosialisasi dan praktik penggunaan alat panel surya. Pelaksanaan terdiri dari tiga tahap, yaitu perencanaan, pelaksanaan, dan evaluasi. Setelah PKM dilaksanakan, terjadi peningkatan pemahaman siswa SMP Bani Hasyim mengenai proses terbentuknya panel surya. Dengan pengetahuan ini, siswa mampu menggunakan panel surya dengan memanfaatkan energi alternatif yang digunakan di sekolah.
Pengaruh Kopel 20 kV Antar Trafo terhadap Proteksi dan Keandalan Distribusi Yudha Adhe Widodo; Resi Dwi Jayanti Kartika Sari; Rahman Arifuddin
Elposys: Jurnal Sistem Kelistrikan Vol. 13 No. 1 (2026): ELPOSYS VOL. 13 NO.1 (2026)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v13i1.9210

Abstract

Lumajang Substation operates three power transformers; however, to date, a 20 kV coupling system between Transformer 2 and Transformer 3 has not yet been implemented. The absence of this coupling potentially leads to transformer overloading, protection coordination mismatch, and reduced reliability of the power supply. This study aims to analyze the impact of implementing a 20 kV inter-transformer coupling on protection system performance and distribution reliability improvement, as indicated by changes in SAIDI, SAIFI, and CAIDI indices at Lumajang Substation. After the implementation of the 20 kV coupling between Transformer 2 and Transformer 3, the SAIDI index decreased from 5.93% to 2.636%, the SAIFI index declined from 137.97% to 72.30%, and the CAIDI index was reduced from 0.269% to 0.242%. Short-circuit current calculations and simulations show that the maximum fault current, represented by a three-phase fault, reaches 17.981 kA, while the minimum fault current, represented by a single-phase-to-ground fault, is 23.092 A. The results yield an OCR setting with an Ipickup of 0.625 A and a TMS of 0.1565 SI, as well as a GFR setting with an Ipickup of 0.1385 A and a TMS of 0.6092 SI. The fault clearing time of the OCR on the coupling is 0.4 seconds, while that of the GFR is 4 seconds. These values fall between the clearing times of the 20 kV incoming feeder and outgoing feeders, thereby satisfying protection coordination principles as verified through simulations using ETAP 19.0.1 software.
Co-Authors Aries Boedi Setiawan Arifuddin, Rahman Basitha Febrinda Hidayatulail Rifki Hari Romadhon Suryono Suryono Yahya Chusna Arif Yudha Adhe Widodo