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All Journal JURNAL SURYA ENERGY Journal of Airport Engineering Technology (JAET) Analit: Analytical And Environmental Chemistry
Idris, Iswadi
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Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Environmental Science Mechanical Engineering Transportation Other

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Pengaruh Pembebanan Terhadap Nilai Resistansi Pentanahan Pada Transformator 250 KVA Gardu BA 0005 PT. PLN (Persero) UP3 Bengkulu ULP Teluk Segara Bengkulu Putra, Dian Eka; Idris, Iswadi
JURNAL SURYA ENERGY Vol. 5 No. 1 2020
Publisher : UNIVERSITAS MUHAMMADIYAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jse.v5i1.2767

Abstract

The distribution transformer is an electromagnetic device that converts and transfers electrical energy to the primary and secondary electrical distribution networks, which are directly related to the ever changing load center. As a result of high and unbalanced loading, it will cause an increase in current in neutral, of course, to anticipate changes in the load that cause a neutral phase current in the distribution transformer, a low grounding resistance value is required in the neutral phase.The resistance value or grounding resistance according to PUIL 2000 and SPLN3-1978 Regarding PLN Low Voltage Network Grounding and Installation Grounding does not exceed 5 ? or a maximum of 5 ?. The calculation results obtained that the grounding resistance value in the neutral phase and the transformer body 250 KVA Distribution Substation BA 005 is 4.11 ?. From these results there is a need for a comparative study of the resistance value from the calculation results with the value of the direct measurement results in the neutral phase grounding system and the 250 KVA transformer body BA 005 Distribution Substation. From the results of direct measurements between 14.00 to 15.00 WIB with 50 percent loading on The transformer has the largest value of resistance in the neutral phase of 8.1 ? and on the transformer body of 8.3 ?. Then the increase in the value of the neutral grounding resistance and the grounding resistance of the transformer body 250 KVA is caused by the transformer load factor and weather factors, especially in sunny and hot weather.
DESIGN OF AN IOT-BASED LONG-DISTANCE CONTROL SYSTEM MODEL FOR ESCALATORS AT AIRPORT Ramadhan, M. Agrist P.; Idris, Iswadi
Journal of Airport Engineering Technology (JAET) Vol. 5 No. 2 (2025): Journal of Airport Engineering Technology (JAET)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat Politeknik Penerbangan Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52989/jaet.v5i2.199

Abstract

The current manual system at Sultan Mahmud Badaruddin II Airport presents significant challenges in the real-time monitoring and control of escalators, resulting in inefficiencies and delays in addressing operational issues. These limitations can result in prolonged downtime, increased maintenance costs, and potential safety risks for passengers. To address these issues, this study proposes an IoT-based control system model designed to enhance the operational efficiency and safety of escalators. This research employs the Research and Development (R&D) method, utilizing the Borg and Gall model, to design, develop, and evaluate the system. The system integrates ultrasonic sensors to detect passenger movement and transmits data via an ESP32 microcontroller to a central control center for real-time analysis. This approach enables continuous monitoring, immediate detection of system anomalies, and prompt responses to technical issues. Additionally, the IoT system reduces downtime by providing technicians with real-time data, thereby ensuring a faster resolution of escalator problems. Testing results indicate that the system performs well under various conditions, including high passenger traffic, making it a reliable solution for the airport. By implementing this IoT-based control system, escalator operations at the airport are expected to become more efficient, safe, and reliable, ultimately improving the overall passenger experience while reducing maintenance costs and downtime.
ANALISIS KANDUNGAN LOGAM BERAT MERKURI (Hg) PADA CUMI-CUMI (Loligo sp.) DENGAN MENGGUNAKAN METODE ATOMIC ABSORPTION SPECTROSCOPY (AAS) Yula, Hesty Rodlotu; Bahri, Syaiful; Ambarwati, Yuli; Idris, Iswadi; Andhulangi, Ganjar
Analit : Analytical and Environmental Chemistry Vol. 6, No. 01 April (2021) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v6i1.2021.p83-91

Abstract

Tingkat bahaya dari logam berat merkuri (Hg) yang ter-bioakumulasi pada cumi-cumi (Loligo sp.) tidak hanya memberikan implikasi bagi lingkungan, namun juga terhadap kesehatan manusia.  Hal inilah yang menjadi dasar penelitian dikarenakan cumi-cumi memiliki kemampuan mengabsorpsi logam melalui jaringan otot dan didukung dengan tingginya produksi cumi-cumi di Indonesia yang mencapai 216 ribu ton per tahun 2018 berdasarkan data KKP RI yang sejalan dengan tingkat konsumsi.  Selain itu, relevansi kebijakan Pemerintah Republik Indonesia dengan penandatanganan Konvensi Minamata tentang bahaya merkuri yang telah ditetapkan sebagai permasalahan global, peraturan BPOM No.5/2018, dan SNI 7387-2009 tentang batasan maksimum cemaran logam berat dalam pangan olahan menjadi acuan pendukung. Tujuan penelitian ini yaitu untuk mengetahui kadar logam berat merkuri (Hg) yang terakumulasi dalam daging cumi-cumi.  Kadar logam berat Hg pada cumi-cumi dianalisis menggunakan metode Atomic Absorption Spectroscopy (AAS) melalui sampel jaringan otot daging.  Secara keseluruhan, data analisis menunjukkan bahwa kandungan logam berat merkuri (Hg) pada daging cumi-cumi adalah 0,038 μg/g (uji#1) dan 0,035 μg/g (uji#2) dimana lebih rendah dari standar baku mutu PerBPOM dan SNI 7387-2009 tersebut yaitu 0,5 mg/kg dan 1,0 mg/kg, masing-masing.  Oleh karena itu, hasil tersebut mengindikasikan bahwa cumi-cumi tersebut aman untuk dikonsumsi.http://dx.doi.org/10.23960/aec.v6.i1.2021.p83-91 
Co-Authors Ambarwati, Yuli Andhulangi, Ganjar Putra, Dian Eka Ramadhan, M. Agrist P. SYAIFUL BAHRI Yula, Hesty Rodlotu