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Rancang Bangun Sistem Monitoring Suhu dan Kelembapan serta Kendali Dua Heater pada Kubikel 20 kV Berbasis Sistem Informasi Geografis Arief Rahmadani; Novie Ayub Windarko; Lucky Pradigta Setiya Raharja
Jurnal Teknologi Elektro Vol 21 No 2 (2022): (Juli - Desember) Majalah Ilmiah Teknologi Elektro
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2022.v21i02.P09

One of the disturbances that occur in the medium-voltage switchgear or cubicle 20 kV one of the disturbances that occur in cubicle 20 kV is when the temperature and humidity conditions are high, then one-day water vapor will arise that sticks to the cubicle wall and affects the corona. Therefore, the cubicle has a heater to heat the space to maintain the humidity. However, when in the field, the heater performance condition is often less than optimal and does not work. Under these conditions, a temperature and humidity monitoring system and a control system for two heaters are needed to prevent damage to the heater. The system is built using the STM32F103C8T6 microcontroller, the DHT-22 sensor is equipped with an exhaust fan to maintain the cubicle termination room temperature. The minimum permissible temperature parameter is 35 C to a maximum limit of 40 C with humidity below 90% following the cubicle brand datasheet, Schneider, and IEC 62271-1 standard. Furthermore, the data from the monitoring can be displayed on the LCD and a website-based Geographic Information System. With this tool, it can facilitate the community, especially the PLN, in the process of monitoring and maintaining cubicles 20 kV.

Using Hots ( Higher Order Thinking Skills ) to Improve Students Critical Reading In English Class Arief Rahmadani; Godefridus Bali Geroda; Widi Syahtia Pane
Inquest Journal Vol. 1 No. 02 (2023): April
Publisher : Wadah Inovasi Indonesia

In language classes, there are several skills that must be mastered by students, especially in English, namely reading ability. Based on the information obtained, there are still many students who experience difficulties in practicing reading or answering reading text questions in English. In this study HOTS (Higher Order Thinking Skills) was used to train and assist students in answering questions on reading texts in English, especially to train students' critical reading. This research was conducted in 2 meetings where the results of the data obtained showed that the use of HOTS had an effect on students' critical reading.

Perancangan SEPIC Converter untuk Pengisian Baterai dengan Metode Kontrol PI Rachma Prilian Eviningsih; Arief Rahmadani; Aditya Riska Kinasih
Jurnal ELEMENTER (Elektro dan Mesin Terapan) Vol. 9 No. 1 (2023): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35143/elementer.v9i1.5913

The electricity production generated by solar panels is not stable due to variations in the intensity of sunlight caused by fluctuating weather conditions, which results in the battery not being fully charged. To ensure a constant output voltage, a PI control method was developed in this study to regulate the duty cycle of the SEPIC converter from the solar panel. The modeling of the PI controller involved determining the P and I gains using analytical methods to obtain optimal system characteristics. The results showed that during closed-loop system testing with solar panel conditions of 1000W/m2 and a temperature of 25Â°C, the output voltage reached the set point value of 14 V with a response time of 0.6 s.

Rancang Bangun Sistem Monitoring Suhu dan Kelembapan serta Kendali Dua Heater pada Kubikel 20 kV Berbasis Sistem Informasi Geografis Arief Rahmadani; Novie Ayub Windarko; Lucky Pradigta Setiya Raharja
Jurnal Teknologi Elektro Vol 21 No 2 (2022): (Juli - Desember) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2022.v21i02.P09

One of the disturbances that occur in the medium-voltage switchgear or cubicle 20 kV one of the disturbances that occur in cubicle 20 kV is when the temperature and humidity conditions are high, then one-day water vapor will arise that sticks to the cubicle wall and affects the corona. Therefore, the cubicle has a heater to heat the space to maintain the humidity. However, when in the field, the heater performance condition is often less than optimal and does not work. Under these conditions, a temperature and humidity monitoring system and a control system for two heaters are needed to prevent damage to the heater. The system is built using the STM32F103C8T6 microcontroller, the DHT-22 sensor is equipped with an exhaust fan to maintain the cubicle termination room temperature. The minimum permissible temperature parameter is 35 C to a maximum limit of 40 C with humidity below 90% following the cubicle brand datasheet, Schneider, and IEC 62271-1 standard. Furthermore, the data from the monitoring can be displayed on the LCD and a website-based Geographic Information System. With this tool, it can facilitate the community, especially the PLN, in the process of monitoring and maintaining cubicles 20 kV.

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