Vicky Chandra
Faculty of Industrial Technology, Petra Christian University

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Pengaruh Perubahan Arus Saluran Terhadap Tegangan Tarik dan Andongan pada Sutet 500 KV di Zona Krian Antonius Ananda, Stephanus; Hosea, Emmy; Chandra, Vicky
Jurnal Teknik Elektro Vol 6, No 1 (2006): MARET 2006
Publisher : Institute of Research and Community Outreach

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (105.753 KB) | DOI: 10.9744/jte.6.1.

Abstract

The transmission lines generally using conductor with ACSR (Aluminium Conductor Steel Reinforced) which has limited temperature until 90 degrees. In this present time, the need of electricity is increasing rapidly; considering from that problem, we need to increase the capacity of transmission line by optimizes the capacity of line conductor from the transmission line before. The main problem of optimizing the transmission line are the tension and sagging of the conductors become bigger. Based from this situation the research is conducted to know about the characteristic of the alteration of current line to tension and sagging of the conductors. Therefore, the result of the research can be useful in designing the structure construction of transmission line which suitable to the conductor's characteristic. As a simulation model, Paiton-Krian 500 kV transmission line is used. The data, including the data of ACSR conductor, are collected from the field. The conductor's temperature is calculated using heat-balance method. Ruling Span method is used to measure the length of equivalent span. Mean while the Catenary method is used to measure the conductor's tension and sagging. In conclusion, it can be seen that the alteration of line current from 10 Ampere to 850 Ampere will cause the conductor temperature increase 125.94%, the tension decrease 36,38% and the sagging increase 26.82%. Abstract in Bahasa Indonesia : Saluran transmisi udara umumnya menggunakan konduktor jenis ACSR (Alumunium Conductor Steel Reinforced) yang memiliki batas temperatur kerja yang diizinkan sebesar 90 C. Mempertimbangkan peningkatan kebutuhan tenaga listrik yang pesat akhir-akhir ini, maka usaha untuk meningkatkan kapasitas saluran transmisi dilakukan dengan mengoptimalkan kapasitas hantaran arus dari saluran transmisi yang telah ada. Permasalahan utama dari peng-optimalan saluran transmisi tersebut adalah tegangan tarik dan andongan yang timbul pada konduktor tersebut menjadi lebih besar, oleh karena itu penelitian ini bertujuan untuk mengetahui karakteristik perubahan arus saluran terhadap tegangan tarik dan andongan konduktor, dengan demikian diharapkan dari hasil penelitian ini akan berguna untuk membangun struktur konstruksi saluran transmisi yang sesuai dengan sifat dari konduktor tersebut. Sebagai model simulasi digunakan saluran transmisi tegangan ekstra tinggi 500 kV jalur Paiton-Krian dengan menggunakan data-data konduktor ACSR yang sesuai dengan yang ada di lapangan. Temperatur konduktor dihitung berdasarkan persamaan keseimbangan panas. Metode Ruling Span digunakan untuk menentukan panjang span equivalen. Sementara itu metoda Catenary digunakan untuk menghitung tegangan tarik dan andongan konduktor tersebut. Berdasarkan hasil dari penelitian ini dapat disimpulkan bahwa dengan adanya perubahan arus saluran dari 10 Ampere menjadi 850 Ampere mengakibatkan terjadinya peningkatan temperatur konduktor sebesar 125.94 % dan penurunan tegangan tarik sebesar 36.38 % serta terjadi peningkatkan pada andongan sebesar 26.82 %. Kata kunci: kuat hantar arus, saluran transmisi, ACSR.
Kurikulum Masjid dan Radikalisme: Strategi Ta'mir Masjid Cegah Konten Radikal di Kota Palembang Abdurrahmansyah, Abdurrahmansyah; Saputra, Ade Akhmad; Chandra, Vicky; Fatrin, Juan Muliawan; Nasution, Nurseri Hasnah
Al-Qalam: Jurnal Kajian Islam dan Pendidikan Vol 16 No 2 (2024): Al-Qalam: Jurnal Kajian Islam Dan Pendidikan
Publisher : LP2M Universitas Islam Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/al-qalam.v16i2.3288

Abstract

This research analyzes the strategies used by mosque administrators in developing a mosque studies curriculum to combat the spread of radical Islamic ideology. The method used is qualitative with a case study approach. Primary data sources are the chairman of the mosque takmir and the head of the Idarah and Imarah section who is responsible for making decisions on mosque management, including the recitation schedule. Secondary sources include mosque congregations involved in mosque activities. Data collection methods include interviews, documentation, and observation. The data analysis process includes data collection, reduction, presentation and drawing conclusions. The study concluded that the main strategy is strict selection of Friday preachers and preachers to prevent the spread of radical views. Mosque administrators also regularly assess the competence of the preacher and reject parties who could cause divisions among the congregation. The current study curriculum is simple, consisting of a preaching schedule and study at books such as Riyadush Shalihin and Adabul Mufrad. However, there is no systematic and comprehensive curriculum structure. Mosque management coordinates with the Ministry of Religion to ensure the quality of preaching and quality of mosque.