Garuda - Garba Rujukan Digital

Persebaran Medan Listrik akibat Proses Exothermic Welding pada Kabel Tegangan Menengah 20 kV Riyani Prima Dewi; Saepul Rahmat
Infotekmesin Vol 12 No 1 (2021): Infotekmesin: Januari 2021
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v12i1.432

In the 20 kV distribution system, insulated cables and conductors of fibrous and solid copper are used. Some problems on 20 kV system occur due to the line length of the lines. This obstacle occurs in the cable, mostly at the cable connection. To overcome this problem, a cable connection technique known as extothermic welding was developed. However, in this process, it is also undeniable that there is a thickening due to the contact which causes the uneven distribution of the electric field in the cable. To see the distribution of the electric field on the surface of the cable that was carried out by the exothermic welding process, a simulation was carried out in FEMM 4.2 with 3 final connection conditions, namely perfect jointing, jointing with a thickness of 0.5 mm and jointing with a thickness of 1 mm. As a result of this imperfect connection, the distribution of the electric field on the surface cable is uneven. There was a high electric field surge at the ends of the cable joint with a thickness of 1 mm and a reduced surge in the cable with a thickness of 0.5 mm at the joint. In a perfect connection, the distribution of the electric field occurs evenly.

Optimalisasi Kapasitas Rooftop PV System Skala Rumah Tangga di Perumahan Riyani Prima Dewi; Fadhillah Hazrina; Betti Widianingsih
Infotekmesin Vol 13 No 1 (2022): Infotekmesin: Januari, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i1.937

One of the renewable energies in Indonesia is solar energy. The geographical condition of Indonesia, which is a tropical country, is one of the advantages it has for applying solar energy. The Indonesian government is gradually regulating the population system for Solar Power Plants (PLTS). The resident system is in demand because of the advantage that it can be connected to the PLN grid and used as an energy reserve. The installation of rooftop PLTS both in government buildings and on the roofs of houses has now become a common trend in the community as a form of participation in the use of New and Renewable Energy (EBT). Before installing PLTS Roofs, it is necessary to determine in advance how much capacity will be installed. This is also related to the community's question, what is the percentage of electricity costs if PLTS roofs are installed in bulk. These designs and calculations are generally carried out with the help of simulations. To discuss these problems, in this article, we will discuss a simulation of the potential for electrical energy generated from rooftop solar power plants in Cilacap Green Smart Living housing. The simulation was carried out with the help of the SolarGIS PV lunar device. Analytical calculations are carried out by software based on input of regional location and solar irradiation. SolarGis will calculate the daily output power generated by the rooftop PV mini-grid and the average monthly and yearly power. The simulation results show that one house with a daily energy requirement of 13 kWh by installing a rooftop PLTS with a capacity of 3 kWp, the demand for electrical energy imported from the PLN network to the house is only 7.8% in one year.

Unjuk Kerja Pengembangan Prototype Alat Pengering Padi Metode Thin Layer Afrizal Abdi Musyafiq; Riyani Prima Dewi; Purwiyanto Purwiyanto; Rafiq Subarkah
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i1.1564

Based on data from the Central Statistics Agency (BPS) for 2019, Cilacap Regency has an area of 14,000 hectares of rice farming land with a potential for harvesting up to 920,000 tons of rice, then the Binangun District area has 66.5 hectares of rice farming land with a potential of harvesting up to 32,000 tons of rice. Turning paddy into rice requires many processes, one of which is drying rice. Traditional rice drying takes a relatively long time, has an uneven moisture content, and is under an unstable temperature therefore it is necessary to develop a thin-layer method for drying rice. This study used the Rex C100 Thermocontrol as a drying temperature controller, used an Arduino Uno equipped with a BTS 7960 driver to adjust the stirring speed, and a YL-69 sensor to read the rice moisture content. Tests in this study were carried out using Inpari-32 rice with a mass of 2 Kg and a drying temperature of 50-80oC. The result of this study was that the relationship between temperature and time in drying was inversely proportional. The rice drying process uses the highest drying power of 654.5 watts while the lowest power is 467.5 watts. The lowest overall energy use was 2.05 x106 J and the highest energy was 2.60 x106 J. The highest drying rate was 0.50%bk/minute. Effective drying uses a temperature of 80oC with a time of 30 minutes to reach the store-dry rice and 70 minutes to reach the dry milled rice category.

Optimalisasi Labview Sebagai Kendali dan Monitoring Arus Tegangan pada Modul Solar Cell Menggunakan Jaringan Lokal Sugeng Dwi Riyanto; Purwiyanto Purwiyanto; Riyani Prima Dewi
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1910

Renewable energy sources in Indonesia have been widely used, one of which is solar energy, for various needs, one of which is for solar power generation by using solar cells as the medium. In generating electricity, solar cells are very dependent on the intensity of the sun so as to produce currents and voltages that are not constant. Because of this, a monitoring system was created to monitor the current and voltage in a solar cell module to determine current and voltage conditions. In this study, the monitoring system used wireless data transmission via the XBee S2C module installed on the Arduino Mega 2560 and Arduino UNO. The INA 219 sensor is mounted on a solar cell module along with a relay module connected to the Arduino Mega 2560 and the XBee S2C module. The test results show that wireless data transmission cannot be used indoors at a distance of more than 20 meters. The INA 219 sensor as a reader for DC current and voltage parameters has an error rate of 0.49% to 0.75% for voltage and for DC current readings it has an error rate of 1.85%. The results of current and voltage readings are displayed on a LabVIEW interface in real-time and can be accessed via a web browser using a local network. Relay control carried out through LabVIEW has a delay time of 6.08 seconds. Logging data can be stored in .xls files and data displayed on a web browser has a delay of one to two seconds.

Analisa Terjadinya Electrical Treeing Pada Isolator Komposit dengan Bahan Pengisi Serat Pelepah Nipah Saepul Rahmat; Riyani Prima Dewi; Erna Alimudin
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2090

Technological developments in materials are increasingly evolving, one form of development is the type of composite insulation. One of the natural fiber composites currently available is a composite from palm fiber which provides increased dielectric strength. Partial discharge due to voids in the composite results in structures such as electrical treeing due to changes in the properties and morphology of the composite causing increased insulation failure and disrupting power distribution. This research tested the strength of Epoxy composite insulation and palm leaf ash filler. By combining these two materials, a complementary composite insulating material will be formed to prevent electrical treeing. The results of the research show that the composite insulating material with nipa palm fiber as filler has an average breakdown voltage value of 40 kV and is above the standard breakdown voltage value for medium voltage insulators of 30 kV. The addition of more and more palm leaf ash filling material will produce voids, thereby accelerating the occurrence of electrical treeing and decreasing the breakdown voltage of the insulation.

Rancang Bangun CNC Router 3 Axis Ukir Kayu Untuk Kerajinan Kaligrafi Sugeng Dwi Riyanto; Muhamad Yusuf; Riyani Prima Dewi; Robbihim Nurdiansyah
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2156

The Indonesian wood industry is diverse, with wood carving being one of its most popular products. However, the manual wood carving process is not suitable for large-scale production. To address this challenge, a new tool has been developed to increase the production of wood crafts, especially calligraphy carving. This tool is a 3-axis wood carving CNC router machine controlled by a computer and smartphone. The CNC router machine was designed using the CNC Shield V3 and the Arduino Uno R3 motor driver, A4988 as a stepper motor controller. The mechanism applied includes creating vector images programmed with gcode, controlling and engraving calligraphy through software on computers and applications on smartphones with Bluetooth HC – 05 communication with a maximum distance of smaller than 10 meters. Based on control data by computer testing geometry testing circle dimensions of 58 mm x 56 mm and feed rates of 5 mm/sec, 8 mm/sec and 10 mm/sec with engraving times of 01:12, 00:48 and 00:42. Testing Muhammad's carving with dimensions of 100 mm x 100 mm and feed rates of 5 mm/sec, 8 mm/sec and 10 mm/sec with engraving times of 05:22, 03:45 and 03:24. Tests for cutting 12 mm thick MDF wood with a depth 1.5 mm and a feed rate of 5 mm/sec cuts 8 rounds for 13:12 min/sec. The control data by smartphone testing the geometry of the circle with dimensions of 50 mm x 50 mm and a feed rate of 500mm/min with a carving time of 58:43 minutes. Testing Muhammad's engraving dimensions of 70mm x 60mm and feed rates of 500 mm/min, 800 mm/min, and 1000 mm/min with engraving times of 54:34, 39:25, and 35:28. The test for cutting 12 mm thick MDF wood with a depth of 1.5 mm and a feed rate of 500 mm/min-cut 8x rounds for 10:21 minutes/second.

Unjuk Kerja Pengembangan Prototype Alat Pengering Padi Metode Thin Layer Abdi Musyafiq, Afrizal; Dewi, Riyani Prima; Purwiyanto, Purwiyanto; Subarkah, Rafiq
Infotekmesin Vol 14 No 1 (2023): Infotekmesin: Januari, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i1.1564

Based on data from the Central Statistics Agency (BPS) for 2019, Cilacap Regency has an area of 14,000 hectares of rice farming land with a potential for harvesting up to 920,000 tons of rice, then the Binangun District area has 66.5 hectares of rice farming land with a potential of harvesting up to 32,000 tons of rice. Turning paddy into rice requires many processes, one of which is drying rice. Traditional rice drying takes a relatively long time, has an uneven moisture content, and is under an unstable temperature therefore it is necessary to develop a thin-layer method for drying rice. This study used the Rex C100 Thermocontrol as a drying temperature controller, used an Arduino Uno equipped with a BTS 7960 driver to adjust the stirring speed, and a YL-69 sensor to read the rice moisture content. Tests in this study were carried out using Inpari-32 rice with a mass of 2 Kg and a drying temperature of 50-80oC. The result of this study was that the relationship between temperature and time in drying was inversely proportional. The rice drying process uses the highest drying power of 654.5 watts while the lowest power is 467.5 watts. The lowest overall energy use was 2.05 x106 J and the highest energy was 2.60 x106 J. The highest drying rate was 0.50%bk/minute. Effective drying uses a temperature of 80oC with a time of 30 minutes to reach the store-dry rice and 70 minutes to reach the dry milled rice category.

Optimalisasi Labview Sebagai Kendali dan Monitoring Arus Tegangan pada Modul Solar Cell Menggunakan Jaringan Lokal Dwi Riyanto, Sugeng; Purwiyanto, Purwiyanto; Dewi, Riyani Prima
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1910

Renewable energy sources in Indonesia have been widely used, one of which is solar energy, for various needs, one of which is for solar power generation by using solar cells as the medium. In generating electricity, solar cells are very dependent on the intensity of the sun so as to produce currents and voltages that are not constant. Because of this, a monitoring system was created to monitor the current and voltage in a solar cell module to determine current and voltage conditions. In this study, the monitoring system used wireless data transmission via the XBee S2C module installed on the Arduino Mega 2560 and Arduino UNO. The INA 219 sensor is mounted on a solar cell module along with a relay module connected to the Arduino Mega 2560 and the XBee S2C module. The test results show that wireless data transmission cannot be used indoors at a distance of more than 20 meters. The INA 219 sensor as a reader for DC current and voltage parameters has an error rate of 0.49% to 0.75% for voltage and for DC current readings it has an error rate of 1.85%. The results of current and voltage readings are displayed on a LabVIEW interface in real-time and can be accessed via a web browser using a local network. Relay control carried out through LabVIEW has a delay time of 6.08 seconds. Logging data can be stored in .xls files and data displayed on a web browser has a delay of one to two seconds.

Rancang Bangun CNC Router 3 Axis Ukir Kayu Untuk Kerajinan Kaligrafi Dwi Riyanto, Sugeng; Yusuf, Muhamad; Dewi, Riyani Prima; Nurdiansyah, Robbihim
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2156

The Indonesian wood industry is diverse, with wood carving being one of its most popular products. However, the manual wood carving process is not suitable for large-scale production. To address this challenge, a new tool has been developed to increase the production of wood crafts, especially calligraphy carving. This tool is a 3-axis wood carving CNC router machine controlled by a computer and smartphone. The CNC router machine was designed using the CNC Shield V3 and the Arduino Uno R3 motor driver, A4988 as a stepper motor controller. The mechanism applied includes creating vector images programmed with gcode, controlling and engraving calligraphy through software on computers and applications on smartphones with Bluetooth HC â€“ 05 communication with a maximum distance of smaller than 10 meters. Based on control data by computer testing geometry testing circle dimensions of 58 mm x 56 mm and feed rates of 5 mm/sec, 8 mm/sec and 10 mm/sec with engraving times of 01:12, 00:48 and 00:42. Testing Muhammad's carving with dimensions of 100 mm x 100 mm and feed rates of 5 mm/sec, 8 mm/sec and 10 mm/sec with engraving times of 05:22, 03:45 and 03:24. Tests for cutting 12 mm thick MDF wood with a depth 1.5 mm and a feed rate of 5 mm/sec cuts 8 rounds for 13:12 min/sec. The control data by smartphone testing the geometry of the circle with dimensions of 50 mm x 50 mm and a feed rate of 500mm/min with a carving time of 58:43 minutes. Testing Muhammad's engraving dimensions of 70mm x 60mm and feed rates of 500 mm/min, 800 mm/min, and 1000 mm/min with engraving times of 54:34, 39:25, and 35:28. The test for cutting 12 mm thick MDF wood with a depth of 1.5 mm and a feed rate of 500 mm/min-cut 8x rounds for 10:21 minutes/second.

Sistem Hybrid Energi Terbarukan pada Alat Pemipil Jagung Purwiyanto; Dewi, Riyani Prima; Zuhairi, Rafi
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2773

Mesin pemipil jagung menggunakan motor listrik sebagai penggerak utamanya dan panel surya yang terhubung dengan baterai sebagai sumber energi utamanya dan PLN sebagai sumber energi cadangan. Dengan adanya mesin ini diharapkan mampu meringankan beban petani jagung dalam proses pemipilan yang tadinya masih menggunakan tenaga manual bahkan menggunakan mesin besar dengan biaya yang relatif mahal. Tujuan perencanaan mesin pemipil jagung tenaga panel surya yaitu untuk mengetahui cara membangun alat pemipil jagung menggunakan teknologi panel surya dan untuk mengetahui berapa kapasitas produksi yang dihasilkan mesin pemipil jagung dalam waktu 1 menit. Berdasarkan hasil pengujian sebanyak 5 kali.Nilai rata-rata kapasitas mesin dalam memipil jagung sebesar 760,6 gram/menit.

Title

Found 10 Documents
Search
Journal : Infotekmesin

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 10 Documents Search Journal : Infotekmesin

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 10 Documents
Search
Journal : Infotekmesin