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All Journal Energi & Kelistrikan Teknosains : Jurnal Sains,Teknologi dan Informatika SAINSTECH: Jurnal Penelitian dan Pengkajian Sains dan Teknologi

Tasdik Darmana

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Author-ID : 1597276

Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Mechanical Engineering

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APLIKASI MIKROKONTROLER UNTUK MENGONTROL LEAD-LAG PADA AIR COMPRESSOR Tasdik Darmana; Ariman; Veriah Hadi
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 7 No 2 (2020): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK-Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v7i2.27

Air compressor merupakan peralatan penting untuk menggerakan berbagai peralatan otomatisasi yang menggunakan pneumatik bagi peralatan industri terutama industri makanan dan minuman. Ketersediaan udara bertekanan untuk sistem pneumatik harus selalu siap, pengaturan saat ini dengan metode manual berpotensi terjadinya human error, sehingga jika angin yang dibutuhkan kurang dari yang ditentukan, maka peralatan dan sistem mekanik mesin / alat tidak akan bekerja sebagaimana mestinya sehingga berakibat kerugian terhadap kegagalan fungsi mesin, produktivitas dan output produksi. Penelitian ini bertujuan untuk merancang sistem aplikasi yang akan diterapkan pada mikrokontroler untuk mengatur lead-lag control dua unit peralatan paket pompa angin yang bekerja secara bergantian, dimana satu unit air compressor sebagai leader (pemimpin) dan unit kedua sebagai lagging (pengikut). Metode yang digunakan dengan menggunakan software program assembly yang dimasukan pada mikrokontroler, yang dibantu oleh perangkat hardware. Dengan batasan dari sistem ini tidak ditujukan untuk menanggulangi kekurangan angin bertekanan akibat power mati (shutdown). Hasil implementasi dari rancang bangun sistem ini menunjukan bahwa, alat lead-lag control pada air compressor dengan mikrokontroler yang dibuat dapat bekerja dengan baik jika digunakan pada pengontrolan dua buah unit sistem yang identik. Sehingga bisa mengurangi resiko berhentinya produksi karena suplai angin pada alat-alat produksi berkurang.

PENGARUH KADAR AIR TERHADAP TEGANGAN TEMBUS MINYAK TRANSFORMATOR DISTRIBUSI Christine Widyastuti; Tasdik Darmana; Oktaria Handayani
Energi & Kelistrikan Vol 10 No 2 (2018): Energi & Kelistrikan
Publisher : Sekolah Tinggi Teknik PLN

Abstract Transformer oil is one of the liquid insulating materials that functions as insulation and cooling in the transformer. Some oil insulation materials must have the ability to withstand penetrating stresses, while as a transformer oil cooler must be able to reduce the heat generated, so that with these two capabilities transformer oil is expected to be able to protect the transformer from interference. Examination of breakdown stress using the IEC 60156-1995 method. For evaluation of oil on the power transformer determines the water content. The feasibility of transformer oil uses breakdown voltage and water content testing as a result of feasibility simulations based on international standards to improve reliability in the treatment of power transformers in the industrial world especially for community service. With greater breakdown voltage, it proves that the oil is still suitable for use. Whereas if the oil water content is higher, it proves that the oil is not suitable for use. Transformer oil, according to the PLN (SPLN) test standards 49-1 / 1992, must have a 30kV / 2.5mm breakdown voltage. In the study of sample A and sample B it has a breakdown voltage of 14kVA and 18kVA. With this, sample A and sample B are not suitable for use. Keywords: moisture content, transformer oil, breakdown voltage, SPLN 49-1 / 1992 ABSTRAK Minyak transformator merupakan salah satu bahan isolasi cair yang berfungsi sebagai isolasi dan pendingin pada transformator. Sebagian bahan isolasi minyak harus memiliki kemampuan untuk menahan tegangan tembus, sedangkan sebagai pendingin minyak transformator harus mampu meredam panas yang ditimbulkan, sehingga dengan kedua kemampuan ini maka minyak transformator diharapkan mampu melindungi transformator dari gangguan. Pengujian tegangan tembus menggunakan metode IEC 60156-1995. Untuk evaluasi minyak pada transformator daya menentukan kadar air. Kelayakan minyak transformator menggunakan pengujian tegangan tembus dan kadar air sebagai hasil simulasi kelayakan berdasarkan standar internasional untuk meningkatkan kehandalan dalam perawatan transformator daya dalam dunia industri khususnya terhadap pelayanan masyarakat. Dengan tegangan tembus yang semakin besar membuktikan minyak tersebut masih layak pakai. Sedangkan apabila kadar air minyak tersebut semakin tinggi membuktikan minyak tersebut sudah tidak layak pakai. Minyak transformator, sesuai standar uji PLN (SPLN) 49-1/1992 harus memiliki tegangan tembus 30kV/2,5mm. Dalam penelitian dari sampel A dan sampel B memiliki tegangan tembus sebesar 14kVA dan 18kVA. Dengan ini, sampel A dan sampel B tidak layak pakai. Kata kunci: kadar air, minyak trafo, tegangan tembus, SPLN 49-1/1992

Analisis Perbandingan Efisiensi Penyaluran Listrik Antara Penghantar ACSR dan ACCC pada Sistem Transmisi 150kV Oktaria Handayani; Tasdik Darmana; Christine Widyastuti
Energi & Kelistrikan Vol 11 No 1 (2019): Energi & Kelistrikan
Publisher : Sekolah Tinggi Teknik PLN

Electricity need in Indonesia continues to increase in accordance with the rate of recovery of the economy and industry and the increase in population. The transmission line transmits electricity from the power plant to the load center via the High Voltage transmission lines (SUTT) or Extra High Voltage Transmissio lines (SUTET), because the long distance causes power losses. The condition before the reconducting of Tebing Tinggi - Kuala Tanjung transmission uses ACSR conductor types and after the reconducting has been replaced by the ACCC, where ACCC has 2 times the current trying of the type of ACSR. In this study, we will examine and analyze the magnitude of the power losses and the efficiency of the distribution of the two types of ACSR and ACCC supply channels with a case study of the 150 kV transmission system Tebing Tinggi - Kuala Tanjung which has a distance of 71.5 km. From the calculation results obtained, after the reconducting process using the conductor the ACCC was able to reduce power losses and increase efficiency by 1.35%.

Rancangan Alat Pengisi Baterai Gadget Dengan Menggunakan Pembangkit Listrik Tenaga Surya Titi Ratnasari; Tasdik Darmana; Jumiati Jumiati; Arif Sutyanegara; M Kahfi Fachelinno; Tri Purnama Putra; Ianatut Toyyibah
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 26 No 2 (2016): SAINSTECH
Publisher : Institut Sains dan Teknologi Nasional

Gadget is an innovation of the latest technology with better ability, the shape can be a smartphone, laptop, computers and others. To be able to operate the gadgets required in the form of battery power. When the gadget runs out of power often confused gadget users to charge the battery because in certain conditions. The purpose of this study was to design a tool to help users gadgets run out of battery in a way that is easy and affordable. This study uses the method of literature review, interviews, designing, manufacturing project, test and produce a prototype, using solar panels as power efficient supplier. When the solar panels convert solar energy into electrical energy which is stored in Cell Battery then stabilize by the stabilizer circuit and power supplied via the USB Cable and finally the battery can be charged. This function helps the user gadget in charging the battery. Not only the battery charge, the tool also serves 220 Volt electrical energy saving and environmental advisor gadget users. Gadget users can use these tools for free as there are in public facilities. The results showed that the design of the charger gadget It helps the students and the community in solving the problem of charging the battery of the gadget.

IMPLEMENTASI SISTEM MONITORING BUS TRANS SEMARANG BERBASIS LORA (LONG RANGE) Tasdik Darmana; Fadila Annas; Ariman .
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 32 No 1 (2022): Sainstech : Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

ABSTRACT Trans Semarang buses as transportation used by residents the city of Semarang often experience delays at one corridor stop so that passenger waiting times are quite long, so monitoring is needed on each bus. LoRa with long-distance communication capabilities without an internet signal with low power over a wide area, so it can be used to monitor the position and speed of the Trans Semarang bus for efficient passenger waiting time. The tool used to monitor Trans Semarang bus consists of a transmitter section as a data sender and a receiver as a data receiver with 915 MHz LoRa communication media and there is a buzzer as a bus speed warning and an emergency button when the bus has problems on the road. The test results from this study are the device can send and receive data with the furthest distance of 2200 meters with a maximum speed that can be measured is 46 km/hour, then it can give speed limit warnings and bus emergency warnings. Keywords : LoRa 915 MHz, Trans Semarang Bus, Distance, Speed

Co-Authors Arif Sutyanegara Ariman Ariman . Christine Widyastuti Christine Widyastuti Fadila Annas Hadi, Veriah Ianatut Toyyibah Jumiati Jumiati M Kahfi Fachelinno Oktaria Handayani Oktaria Handayani Titi Ratnasari Tri Purnama Putra

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