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All Journal International Journal of Applied Power Engineering (IJAPE) Singuda ENSIKOM Indonesian Journal of Electrical Engineering and Computer Science
Naemah Mubarakah
Universitas Sumatera Utara
Computer Science & IT Electrical & Electronics Engineering Engineering

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ANALISIS LINK BUDGET PADA PEMBANGUNAN BTS ROOFTOP CEMARA IV SISTEM TELEKOMUNIKASI SELULER BERBASIS GSM Kevin Kristian Pinem; Naemah Mubarakah
Singuda ENSIKOM Vol 9, No 3 (2014)
Publisher : Singuda ENSIKOM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.259 KB)

Abstract

Teknologi informasi dan telekomunikasi merupakan teknologi yang pertumbuhannya sangat cepat. BTS merupakan jaringan yang dipakai untuk memenuhi kebutuhan telekomunikasi seluler. Salah satu yang harus diperhitungkan dalam membangun sebuah BTS adalah  link budget. Link budget merupakan sebuah cara untuk menghitung mengenai semua parameter dalam transmisi sinyal mulai dari gain dan loss dari transmitter (Tx) sampai receiver (Rx) melalui media transmisi. Penelitian ini dilakukan pada BTS Rooftop yang berlokasi di Cemara IV. Adapun parameter yang dianalisis dalam link budget pembangunan BTS ini antara lain Coverage, Fresnel Zone, Free Space Loss, Effective Isotropic Radiated Power dan Received Signal Level. Analisis link budget dilakukan untuk memastikan bahwa level daya penerimaan lebih besar atau sama dengan level threshold ( RSL ≥ Rth ). Setelah melakukan perhitungan seluruh parameter link budget maka diperoleh nilai RSL pada BTS pancing sebesar  -31,2602 dBm dengan sensitivitas daya RAU (Rth) pada antena microwave BTS tersebut sebesar -76 dBm sedangkan nilai RSL pada MS sebesar -90,9799 dBm dengan sensitivitas MS (Rth) sebesar -101 dBm sehingga BTS Cemara IV layak on air.
Protection coordination analysis applied at biogas power generation plant Yulianta Siregar; Wiwanto Tjumar; Naemah Mubarakah; Riswan Dinzi
Indonesian Journal of Electrical Engineering and Computer Science Vol 30, No 1: April 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v30.i1.pp1-13

Abstract

Biogas from liquid waste from palm oil processing, palm oil mill effluent (POME), can be utilized in biogas power plants as a source of renewable energy (PLTBg). The PLTBg electrical system is equipped with a coordinated protection system. Then, the protection system must also maintain the continuity of electrical service in parts that are not affected by disturbances. Coordination of the protection system is essential. In this research, the electrical transient analysis program (ETAP) carries out the short circuit current analysis, and the coordination of overcurrent protection is constructed from its inverse-definite minimum time characteristics. The analyzed data contributed to selecting the right protection devices. A combination of overcurrent protection, directional protection, and frequency protection change rate supported a reliable electrical power system for a biogas power generation plant as distributed generation. The result shows that modern microprocessor-based protection relays support several protection features in one device and can be integrated into a supervisory control and data acquisition (SCADA)-controlled protection system to enhance their capabilities.
Analysis a mixtures of bentonite, palm kernel shell charcoal and magnesium sulfate (MgSO4) for reducing grounding resistance using rod-type electrodes at varying soil depths Ferry Rahmat Astianta Bukit; Naemah Mubarakah; Adrian Sinaga
International Journal of Applied Power Engineering (IJAPE) Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v15.i3.pp1386-1398

Abstract

A grounding system is an essential electrical safety mechanism designed to protect humans and equipment from disturbances such as lightning-induced surge currents or short circuits. It operates by channeling excess current into the ground through grounding electrodes, thereby reducing the risk of damage and hazards. High grounding resistance can compromise the dissipation of fault currents and overvoltages, leading to safety risks. This study focuses on reducing grounding resistance through chemical soil treatment using bentonite combined with a mixture of magnesium sulfate (MgSO₄) and palm shell charcoal. The optimal composition consists of 10% bentonite, 10% native soil, and 80% of the material mixture. Experiments were conducted at electrode depths of 30 cm, 60 cm, 90 cm, and 110 cm. Results showed that the initial resistance of 312.5 Ω at 30 cm depth decreased to 86.1 Ω, and at 110 cm depth, resistance decreased from 186.5 Ω to 53.0 Ω. The average reduction reached 77.4%, indicating that this material combination is highly effective in lowering grounding resistance and improving system performance.
Co-Authors Adrian Sinaga Candra vernando tambunan Daniel Chandra Simatupang Dian Saiful Ramadhan Elis Fronika Hutasoit Febri uswatun hasanah Fenni alfionita manurung Ferry Rahmat Astianta Bukit Hariadi Masta Imelda Sricavitry Sihaloho Kevin Kristian Pinem Nicholas tanzil Riswan Dinzi Wiwanto Tjumar Yovie Dwi Villasica Yulianta Siregar