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Analisis Perawatan Crane Hoist pada Intake PLTA Maninjau Sitti Amalia; Sitti Amalia; Rafika Andari; Sitti Amalia; Syafeii Syafeii
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v7i10.13094

The purpose of this research is to identify the type of crane hoist and examine the maintenance procedure that must be followed if the PLTA Maninjau Intake Hoist crane sustains damage. At the Maninjau hydropower facility, two treatments are carried out: routine maintenance and repair maintenance. Preventive maintenance (routine) is frequently performed on the PLTA Maninjau intake hoist crane four times a month / once a week. Corrective type maintenance is performed for transformer and contactor damage because it replaces components. As for pendan damage, only predictive type maintenance is carried out. Initially, each crane equipment was checked, then tested by operating the crane and checking which parts had malfunctioned or were damaged based on their use. If the crane being operated is damaged, then a re-check is carried out on the circuit or on the crane equipment that has failed. If the crane has no problem/damage, it means that the crane is in good condition and the inspection is complete.

Modeling and simulation for flashover location determination on 150 kV insulator string Sitti Amalia; Sitti Amalia; Warmi, Yusreni; Amalia, Sitti; Zulkarnaini, Zulkarnaini; Dasman, Dasman; Bachtiar, Antonov; Anthony, Zuriman; Azhar, Hamdi
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 4: August 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i4.pp3716-3728

The 150 kV Payakumbuh-Koto Panjang transmission line in West Sumatra is located in an area with high lightning activity. Based on Meteorological, Climatological, and Geophysical Agency (BMKG) data (2017-2023), the average number of lightning days per year (IKL: isokeraunic level) reaches 165-173 days/year, and 79% of the transmission towers are located in hilly and rocky areas. This causes contamination of the insulator, which can reduce its performance and cause flashovers in the insulator circuit. However, in the field, finding flash points in insulators is still a challenge. Therefore, simulation must be used as a tool to determine the location of flashover in an insulator circuit that is affected by temperature and humidity. Simulation by modeling flashover provides an effective solution for determining the location of flashover in insulator circuits, which is the novelty of this research. This research compares laboratory test results with manual calculations modeled using Visual Basic 6. The research results show that temperature and humidity have a significant influence on determining the flashover voltage value on the insulator. The flashover locations during the test are the same as the calculated flashover locations, as shown by these simulations and modeling.

Improving the Quality of Operator Tri's 2G 4G Network Based on Walktest Data at Minangkabau International Airport Yona Pramunita Rusali; Sitti Amalia; Andi Sofyan
Journal of Education Technology Information Social Sciences and Health Vol 3, No 2 (2024): September 2024
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v3i2.3236

This research investigates improving the quality of 2G and 4G networks for Tri operators at Minangkabau International Airport through walktest data analysis. By leveraging tools such as Tems Investigation and Actix Analyzer, parameters such as RSRP, SINR, RxLevSub, and RxQual are evaluated to optimize network performance. This research aims to meet KPI standards and improve user experience by ensuring smooth connectivity. These findings provide valuable insights into network optimization strategies.

Modeling and simulation for flashover location determination on 150 kV insulator string Sitti Amalia; Sitti Amalia; Warmi, Yusreni; Amalia, Sitti; Zulkarnaini, Zulkarnaini; Dasman, Dasman; Bachtiar, Antonov; Anthony, Zuriman; Azhar, Hamdi
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 4: August 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i4.pp3716-3728

The 150 kV Payakumbuh-Koto Panjang transmission line in West Sumatra is located in an area with high lightning activity. Based on Meteorological, Climatological, and Geophysical Agency (BMKG) data (2017-2023), the average number of lightning days per year (IKL: isokeraunic level) reaches 165-173 days/year, and 79% of the transmission towers are located in hilly and rocky areas. This causes contamination of the insulator, which can reduce its performance and cause flashovers in the insulator circuit. However, in the field, finding flash points in insulators is still a challenge. Therefore, simulation must be used as a tool to determine the location of flashover in an insulator circuit that is affected by temperature and humidity. Simulation by modeling flashover provides an effective solution for determining the location of flashover in insulator circuits, which is the novelty of this research. This research compares laboratory test results with manual calculations modeled using Visual Basic 6. The research results show that temperature and humidity have a significant influence on determining the flashover voltage value on the insulator. The flashover locations during the test are the same as the calculated flashover locations, as shown by these simulations and modeling.

PENGGUNAAN TUNING FUZZY UNTUK MENINGKATKAN RESPON SISTEM MANUVER PITCH HEXACOPTER Usman, Gabriel Hafizh; Al Al; Amalia, Sitti; Nur, Andi M.; Syofian, Andi
Kohesi: Jurnal Sains dan Teknologi Vol. 6 No. 9 (2025): Kohesi: Jurnal Sains dan Teknologi
Publisher : CV SWA Anugerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3785/kohesi.v6i9.10246

Penelitian ini bertujuan meningkatkan respons sistem kendali Hexacopter khususnya pada manuver pitch menggunakan Fuzzy Sugeno untuk tuning otomatis parameter PID. Metode PID tradisional sering menghadapi kesulitan dalam lingkungan dinamis karena tuning manual. Fuzzy Sugeno memungkinkan penyesuaian parameter PID secara real-time berdasarkan error, sehingga meningkatkan performa sistem. Hasilnya, waktu naik berkurang hingga 0,3 detik, waktu puncak menjadi 0.8 detik, dan waktu stabilisasi hingga 1,63 detik, dengan overshoot yang jauh lebih kecil 4,1%. Pendekatan ini menawarkan solusi yang lebih cepat dan stabil untuk pengendalian Hexacopter dalam aplikasi yang membutuhkan kestabilan presisi tinggi.

Studi Analisa Pengaruh Desain Kumparan 9-Fasa Simetris Dengan Sistem Desain-3 Lapis dan Kutub Berurutan Terhadap Torsi dan Kecepatan Motor Induksi 3-Fasa Sidiq, Rasyid N; Erhaneli, Erhaneli; Anthony, Zuriman; Syofian, Andi; Amalia, Sitti
Journal of Accounting Law Communication and Technology Vol 2, No 1 (2025): Januari 2025
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jalakotek.v2i1.4833

Penelitian ini untuk mengkaji pengaruh desain kumparan 9-fasa simetris dengan menggunakan sistem desain 3 lapis kumparan pada motor induksi 3-fasa terhadap torsi dan kecepatan motor, dilakukan dengan tujuan untuk membandingkan kinerja motor konvesional 3 fasa dengan motor desain kumparan 9-Fasa. Untuk Mengetahui dan menganalisa pengaruh desain kumparan 9 fasa simetris terhadap torsi dan kecepatan motor induksi 3 fasa dengan menggunakan sistem desain 3 lapis kutup dibuat secara berurutan. Menentukan kumparan yang ditempatkan dan dirancang dalam motor kumparan 9 fasa simetris dengan 3 lapis, serta mengatur kutub dalam urutan tertentu. Perancangan ini penting karena mempengaruhi kumparan pada medan magnet dan arus yang dihasilkan. Motor diuji di laboratorium dengan mengukur torsi, kecepatan, dan efisiensi di berbagai kondisi operasi. Uji eksperimental dilakukan untuk membandingkan hasil simulasi dengan kinerja motor aktual. Data pengujian mencakup pengukuran torsi dan kecepatan dari hasil penelitian ini didapatkan hasil data torsi dan kecepatan yang tidak sama untuk percobaan kedua motor.

A Novel Model for Prediction of Flashover 150kV Polluted Insulator Based on Nonlinear Autoregressive External Input Neural Network Hasanah, Mardini; Novizon, Novizon; Qatrunnada, Rusvaira; Warmi, Yusreni; Amalia, Sitti; Yamashika, Herris
PROtek : Jurnal Ilmiah Teknik Elektro Vol 11, No 3 (2024): Protek: Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v11i3.7344

This study aims to use an artificial neural network to forecast the flashover voltage of a polluted high-voltage insulator. Practical tests were conducted on a high-voltage insulator to gather data for the neural network. These tests were carried out with varying levels of real contaminants from used insulators, with each level of contamination measured in milliliters. The collected data provides flashover voltage values corresponding to different pollution amounts and their conductivity in each insulator zone. The Nonlinear Autoregressive External Input Neural Network (NarxNet) is employed to predict the flashover voltage and assess the pollution state of the insulator. The results demonstrate that the NarxNet method achieves a 93.74% accuracy rate in predicting the flashover voltage of high-voltage insulators, compared to the results from practical tests.

Analysis of the Use of Telkomsel and Indosat Providers on the ITP Campus to Improve Internet Signal Quality for Students Rifqa Durriyatil Ilmi; Sitti Amalia; Andi Syofian
Journal of Education Technology Information Social Sciences and Health Vol 3, No 2 (2024): September 2024
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v3i2.3188

Walktest is a direct signal quality measurement activity which aims to collect signal parameter data for an operator in a certain area. Usually the walk test is carried out indoors by walking around the area to be measured carrying a walk test device that is equipped with supporting software. Walktest data collection was carried out in several buildings on the ITP campus, namely buildings A, B, C, D, E, and F, where each building consists of 2 floors and 3 floors and the operator whose data will be taken is only for 4G networks, especially Indosat and Telkomsel operators. The parameters to be measured are PCI (Physical Cell Identity) parameters, RSRP (Referenced Signal Receive Power) parameters, RSRQ (Reference Signal Receive Quality) and SINR (Signal to Interference Noise Ratio) parameters. From the results of this walktest, we can find out what the signal quality is in the building and the factors that cause differences in signal quality in the building.

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