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All Journal Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Kilat Energi & Kelistrikan Jurnal Ilmiah Sutet TERANG : Jurnal Pengabdian Pada Masyarakat Menerangi Negeri

Ibnu Hajar

Institut Teknologi PLN

Author-ID : 2083722

Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISIS PERBAIKAN FAKTOR DAYA MENGGUNAKAN KAPASITOR BANK DI PLANT 6 PT. INDOCEMENT TUNGGAL PRAKARSA Tbk. UNIT CITEUREUP Ibnu Hajar; Suninda Megi Rahayuni
Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer Vol 9, No 1 (2020): Edisi Juni 2020
Publisher : Fakultas Teknik Elektro - Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/setrum.v9i1.8111

PT. Indocement Tunggal Prakarsa Tbk. is a company that produces cement. Large electrical power requirements are a major factor in running production process. The low power factor caused load system in Plant 6 not to run optimally. For industries, low power factor conditions could not be avoided due to varying motor loads. The power factor improvement used capacitor banks. The power factor is the ratio of active power with apparent power. Capacitor banks are a set of several capacitors connected in parallel to improve the quality of electrical power by increasing the power factor. This study used a quantitative method in which there was clarity of purpose, approach, data sample, and abundantly use of number. Moreover, data analysis was undertaken after all data had been collected. By raising the Cos to 0.95, for the main feeder AA 5 (from main transformer 6.1), a capacitor of banks with a capacity of 6172.33 kVAR must be installed, and for main feeder AA 8 (from main transformer 6.2), a capacitor of banks with a capacity of 5388.88 kVAR must be installed in order that the quality power produced was more optimal.

Analisis Pengaruh Beban Terhadap Efisiensi Generator Unit 2 PLTP PT. Indonesia Power UPJP Kamojang Muharrir Muharrir; Ibnu Hajar
KILAT Vol 8 No 2 (2019): KILAT
Publisher : Sekolah Tinggi Teknik - PLN

Geothermal as a newest natural resource for Indonesian. PLTP PT. Indonesia Power as one of subsidiaries of PLN that is focused on generating using geothermal resource. One of the important components in the system of PLTP is a generator. PLTP Kamojang had been operating for about ±30 years, where there are still some problems that will reduce the efficiency of generator. The generator at PLTP Kamojang unit 2 must be operated more than 90% so that it will be able to supply electric power for 150kV. If the generator operated with the efficiency under 80%, so the supply of energy will not be maximum, because there are so much energy of electric lost caused by the losses in the generator. That is why needs to be analyzed toward the efficiency of the generator, whether the generator still works optimum or not. The result of analyses from the month of February 2019 as long as 1 month, found that the efficiency of generator unit 2 is about 92,888%. If comparing by the efficiency of generator as design as much as 98,4%. The efficiency value of the generator unit 2 Kamojang is decreased for about 5,51%. This condition showed that the generator still reliable one in supllying electric power.

Studi Dampak Level Penetrasi Pembangkit Listrik Fotovoltaik pada Jaringan Distribusi Septianissa Azzahra; Agus Yogianto; Ibnu Hajar
Energi & Kelistrikan Vol 11 No 1 (2019): Energi & Kelistrikan
Publisher : Sekolah Tinggi Teknik PLN

Recently distribution network have connected with power plant unit also with photovoltaic power plant. Therefore voltage profile of distribution grid not any more distance from source there is voltage drop but connected with photovoltaic power plant would be increase grid voltage in this connected point also in the grid line. In this study, the distribution grid with connected with photovoltaic power plant is modelled. By using through MATHLAB / SIMULINK, modeling and simulation can be done ondistribution grid with two point connected to the photovoltaic power plant. From the simulation and analysis obtained, that power injection to grid by photovoltaic power plant can affect voltage grid condition, but not affect grid frequency relatively. The grid voltage will increase if there is power injection to the connected point in grid. Increase the power penetration to the grid would be increase the rise voltage in the grid. The constraint in this case, that power penetration must be considered the condition of quality voltage because any trend for voltage wave become distorted.

Penerapan Algoritma Kunang – Kunang (Firefly Algorithm) untuk Optimasi Rekonfigurasi Jaringan Distribusi Radial Yoakim Simamora; Ibnu Hajar; Alex Fernandes
Energi & Kelistrikan Vol 11 No 2 (2019): Energi & Kelistrikan
Publisher : Sekolah Tinggi Teknik PLN

ABSTRAK Penelitian ini membahas tentang rekonfigurasi jaringan untuk meminimalkan rugi jaringan pada sistem distribusi. Nilai rekonfigurasi jaringan dibatasi oleh jumlah tie switch yang ada pada jaringan distribusi. Rekonfigurasi jaringan Distribusi merupakan salah satu cara yang dilakukan untuk memperbaiki kualitas daya, kualitas daya dalam hal ini adalah perbaikan jatuh tegangan dan rugi – rugi daya. Binary firefly algorithm digunakan untuk optimasi rekonfigurasi jaringan Distribusi IEEE 33 bus. Skema ini diujikan pada sistem 12,66 kV. Hasil simulasi dengan menggunakan binary firefly algorithm pada saat belum dilakuakn optimasi pada sistem distribusi IEEE 33 bus memiliki rugi jaringan sebesar 202,69 kW dengan tegangan minimum 0,91 pu. Setelah rekonfigurasi jaringan rugi jaringan yang optimal sebesar 139,53 kW dengan tegangan minimum 0,95 pu. Kata kunci: Rekonfigurasi, Rugi-rugi Daya, Fire Fly Algorithm

Analisa Pengaruh Luas Penampang Penghantar dan Cuaca Terhadap Rugi Daya Akibat Korona Pada SUTT 150 kV (Studi Kasus: Gardu Induk Bangkalan – Gardu Induk Sampang) Ibnu Hajar; Tito Dias Fernando
Energi & Kelistrikan Vol 11 No 2 (2019): Energi & Kelistrikan
Publisher : Sekolah Tinggi Teknik PLN

PT. PLN (PERSERO) as a state-owned company responsible in the electricity sector is required to improve the quality of electricity transmission. In the transmission of electrical power to consumers will be got losses of power. Raising the voltage is an alternative to this problem but it creates new problems because the higher the voltage has increased the corona will occur. The impact of the corona in addition to damaging equipment, noise, and disturbing radio waves, the corona also causes power losses that are proportional to the length of the transmission line. This study uses a quantitative method, by calculating the corona power losses by comparing 4 different cross-sectional areas of the conductor and 4 different air temperatures. The results of this study found that the smaller the cross-sectional area of the conductor the power losses due to corona are smaller, conversely the greater the cross-sectional area the greater the power losses. At the smallest cross-sectional area of 282.6 mm2, the power losses that occurred were 2.013% and at the largest cross-sectional area of 378.7 mm2, the power losses were 5.251%. While the influence of air temperature, the lowest corona losses occur at 29 0C which are 1,223,886 kW and the biggest occur at 24 0C which are 1,373,419 kW, so the higher the air temperature the smaller the corona losses, conversely the lower the air temperature than the higher the corona losses that occur.

Review dan Resetting Skema Overload Shadding Interbus Transformer 500/150 kV 1,3 Gandul dan 2 Kembangan Ibnu Hajar; Muhammad Ridho
Energi & Kelistrikan Vol 12 No 1 (2020): Energi dan Kelistrikan: Jurnal Ilmiah
Publisher : Sekolah Tinggi Teknik PLN

Power system protection is one of the most important aspect in power system operation. Power system protection is an attempt to widely prevent the fault over the whole system. One of the power system protection schemes that have been applied by PT. PLN (Persero) to 150 kV Jawa Bali subsystem is Over Load Shedding of Interbus Transformer 500/150 kV. Over Load Shedding scheme has correctly to be set to prevent overload on secondary side of IBT 500/150 kV. Black Out occured on January 2, 2018 at 150 kV subsystem of 1,3 Gandul – 2 Kembangan – Muara Karang is one of the impact caused by incorrect-setting of Over Load Shedding scheme. The purposes of this research are to review the initial setting of Over Load Shedding scheme and to reset it as a follow-up of Black Out event occured in this subsystem. This research uses qualitative method by analyzing the overload points obtained by the simulation of DIgSILENT 14.3.1. This thesis results the new Over Load Scheme setting of IBT 500/150 kV 1 and 3 Gandul those are 3 seconds of pick-up times for the first step and 3,5 seconds of pick-up times for the second step wherein 410,98 MW is necessarily to be shed in 2 steps. Meanwhile, the new Over Load Shedding setting of IBT 500/150kV 2 Kembangan are 2 seconds of pick-up times for the first step and 2,5 seconds of pick-up times for the second step wherein 378,23 MW is necessarily to be shed in 2 steps.

Model Doubly Fed Induction Generator (DFIG) untuk Analisis Performa Kontrol pada Pembangkit Listrik Tenaga Angin Tri Wahyu Oktaviana Putri; Agus Yogianto; Ibnu Hajar
Energi & Kelistrikan Vol 12 No 2 (2020): Energi dan Kelistrikan: Jurnal Ilmiah
Publisher : Sekolah Tinggi Teknik PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/energi.v12i2.1095

Studi mengenai pengoperasian pembangkit listrik dari energi terbarukan dengan tenaga angin khususnya terkait dengan peran sistem kontrol pada pembangkit listrik tenaga angin relatif masih sangat terbatas. Peran sistem kontrol sendiri sangat penting di dalam konversi daya pembangkit listrik seperti ini. Oleh sebab itu untuk mengetahui serta menyelidiki pengaruh sistem kontrol konverter daya pada pembangkit listrik tenaga angin khususnya dengan Double-Fed Induction Generator (DFIG) dibutuhkan pemodelan dari pembangkit listrik tenaga angin dengan DFIG serta sistem kontrol yang dapat digunakan untuk simulasi pada jaringan atau sistem tenaga listrik. Penelitian dengan demikian bertujuan untuk menghasilkan model pembangkit listrik tenaga angin dengan generator DFIG beserta sistem kontrolnya yang dapat mengatur konversi daya secara optimal pada operasi yang terkoneksi ke jaringan listrik. Beberapa tahapan dilakukan pada penelitian ini yang terdiri dari kajian literatur, persiapan perangkat untuk simulasi memakai MATLAB/Simulink, pemodelan DFIG dengan penurunan persamaan yang berlaku, penyederhanaan model, disain kontrol, simulasi dan analisis. Pada tahapan penelitian ini hasil yang didapat merupakah sebagian tahapan penelitian yaitu mendapatkan pemodelan DFIG yang disederhanakan. Model DFIG yang disederhanakan ini diperoleh setelah melalui perumusan persamaan matematis dari rangkaian ekuivalen DFIG, menurunkan persamaan untuk model transien DFIG dan menyusun model DFIG dalam bentuk state space. Selanjutnya penyederhanaan dari bentuk state space diperoleh hubungan antara stator dan rotor DFIG.

Analisa Setting Rele Differensial Pada Generator PT. PJB UBJ O & M PLTU Rembang Ibnu Hajar
Sutet Vol 9 No 1 (2019): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/sutet.v9i1.325

ABSTRACT PT PJB UBJ O&M Rembang PLTU is one of the Java Bali steam power plants, which the output that produced by the Rembang PLTU generator is 315 MW. Generator is the core equipment of system which has different of operating characteristics and protection systems. Disturbances in generators include damage to generators or auxiliary devices, single-phase short circuit current, three-phase short-circuit current and imperfect electrical contacts. To avoid such interferences, a protection system is needed, one of which uses differential relay. This device works very fast and does not require time delay by detecting the difference in the current entering the stator coil, if the current accross on the stator coil is different then the differential relay will work. The purpose of this study is to analyze the differential relay settings on generators installed at PT PJB UBJ O&M Rembang PLTU which affect the reliability of the generator. The method used in this study is a quantitative method, where in this method a research approach is widely demanded to use numbers from data collection, processing of data, and appearance of the results. The relay setting obtained from this study is 0.1804 A, which means it is still in good condition, so it can carry out its duties as a protection system.Keywords: Generator, Differential Relay, Short Circuit, Protection System ABSTRAK PT PJB UBJ O&M PLTU Rembang merupakan salah satu pembangkit listrik tenaga uap Jawa Bali, dimana output yang dihasilkan generator PLTU Rembang sebesar 315 MW. Generator merupakan peralatan utama dari sistem pembangkitan yang memiliki karakteristik pengoperasian dan sistem proteksi yang berbeda. Gangguan pada generator diantaranya kerusakan generator atau alat bantu generator, arus hubung singkat satu fasa, arus hubung singkat tiga fasa dan kontak-kontak listrik yang belum sempurna. Untuk menghindari gangguan tersebut diperlukannya sistem proteksi, salah satunya menggunakan rele differensial. Rele differensial ini bekerja dengan sangat cepat dan tidak memerlukan penundaan waktu (time delay) dengan cara mendeteksi perbedaan arus yang masuk melalui kumparan stator, apabila arusnya berbeda maka rele differensial akan bekerja. Tujuan penelitian ini adalah untuk menganalisis penyetelan rele differensial pada generator di PT PJB UBJ O&M PLTU Rembang yang berpengaruh terhadap keandalan pembangkit. Metode yang digunakan pada penelitian ini adalah metode kuantitatif, dimana dalam metode ini dilakukan pendekatan penelitian yang banyak dituntut menggunakan angka dari pengumpulan data, pengolahan terhadap data, serta penampilan hasilnya. Hasil yang didapat dari penelitian ini setelan rele differensialnya sebesar 0,1804 A, yang berarti masih dalam keadaan baik, sehingga dapat menjalankan tugasnya sebagai sistem proteksi.Kata kunci: Generator, Rele Differensial, Hubung Singkat, Sistem Proteksi

Analisis Voltage Drop Pada Jaringan Tegangan Rendah Dengan Metode Pecah Beba Pada Gardu KH 007 Di PT PLN (Persero) UP3 Pamekasan Ibnu Hajar; Nurmiati Pasra; Denny Rusmansyah
Sutet Vol 10 No 2 (2020): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/sutet.v10i2.1306

In the operation of the electric power system, good quality service is needed. One of them is thevoltage value received by the customer does not get a voltage drop. Based on SPLN No.1: 1978, theservice voltage is a maximum of 5% and a minimum of 10% of the nominal voltage of the LowVoltage Network that is 220 Volt. One of the locations experiencing voltage drop problems is on theCentral Pakandangan Village, Sumenep. Based on an analysis do by the PT PLN UP3 PamekasanNetwork division, it turns out that the voltage drop that occurred on Central Pakandangan Villagecaused by the location. The location is to far from the KH 007 distribution substation, which is 643meters. Then, the area around the location also has a high burden due to the many standingresidential settlements. Therefore, it is necessary to break the load on the network. This method isdone by moving or transferring part of the load from the old network to the new network. Which isthe last 5 poles in this line. so the load supported by one line does not have voltage drop. The resultobtained after performing the load break is that the voltage on the receiving side rises to phase R200 Volt, phase S 212 Volt, and phase T 202 Volt. Where previously the value of the voltage on thereceiving side is phase R 189 Volt, phase S 206 Volt, and phase T 194 Volt.

Kapasitas Kapasitor Koreksi Faktor Daya Pada Pelanggan Rumah Tangga 6600 VA Ibnu Hajar; Safira Nabilla Julianti
Sutet Vol 11 No 2 (2021): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/sutet.v11i2.1576

It is undeniable that the low value of the power factor can cause problems with the electrical load in the form of power consumed that does not match the installed power. A low power factor can cause power usage to be less than optimal and current increase so that it can result in increased heat losses in the cable. From the data, there are still many customers who have a power factor of 0.5 to 0.7 meaning they are below the standard, for this reason it is necessary to improve the power factor value by installing capacitors where it is necessary to calculate the capacitor’s capacity according to the installed power, so as to optimize the distribution of funds and reduce heat losses from the conductor so that the distribution condition is more stable. The diagram method is used, a diagram showing the kVAR value is needed before and after compensation. With the improvement of the power factor in accordance with the standard, a more optimal use of electric power is obtained. From the results of the calculations, the average capacity of the capacitor used for household customers with a power of 6600 VA is or 37.4 F.

Co-Authors Agus Yogianto Agus Yogianto Agus Yogiyanto Alex Fernandes Azzahra, Septianissa Dela Romadani Denny Rusmansyah Dhami Johar Damiri Edy Ispranyoto I Made Indradjaja M Brunner Jumiati Jumiati Jumiati Jumiati Khoirunnisa Ramadhanti M. Syair Pandu Lesmana Martin Choirul Fatah Martin Choirul Fatah Martin Choirul Fatah Muhammad Iqbal Romadhoni Muhammad Ridho Muharrir Muharrir Nurmiati Pasra Safira Nabilla Julianti Suninda Megi Rahayuni Supriadi Legino Tito Dias Fernando Tri Wahyu Oktaviana Putri Yoakim Simamora Yohanes Carlos Ngaga Sara Yuliansyah Yuliansyah Yuliansyah Yuliansyah yuliansyah yuliansyah Yuliasyah Yuliasyah

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