This study aims to determine the difference in short circuit current with manual calculation and ETAP 12.60 Simulation in to know the suitability of capacity circuit breaker Substasion 150/20 kV at Gandul. The used method is qualitative descriptive method. The subject that will be studied is short circuit on the substation 150/20 kV Gandul Cinere. The research was conducted by using is manual calculation and software ETAP 12.60 simulation. The results obtained is differences of the short circuit current is not significant between the manual calculation and software ETAP 12.60 simulation in three conditions include 0.572% for the conditions of short circuit fault of one phase to ground, 0.884% for the conditions of short circuit fault of phase to phase and last 0.884% for the short circuit fault of three phase. Furthermore, the result of the calculation of the short circuit current will be used as an indicator of a determinant of the suitability of the capacity circuit breaker substation 150/20 kV at Gandul , obtained that a comparison of the rating circuit breaker installed (existing) is great against the result of the election of the rating circuit breaker base on manual calculation. So it can be concluded that the circuit breaker beinstalled on the substation 150/20 KV at Gandul, has a capacity that suits your needs and still fit for use. ABSTRAK Penelitian ini bertujuan untuk mengetahui perbedaan besar arus hubung singkat antara perhitungan manual dan simulasi ETAP Power Station 12.6 serta untuk mengetahui kesesuaian kapasitas pemutus tenaga GI Gandul 150/20 kV. Metode yang digunakan adalah deskriptif kualitatif. Subjek pada penelitian ini adalah arus hubung singkat pada Gardu Induk 150/20 kV Gandul Cinere. Penelitian dilakukan menggunakan perhitungan manual dan simulasi software ETAP Power Station 12.6. Hasil penelitian diperoleh bahwa perbedaan hasil arus hubung singkat yang tidak signifikan antara perhitungan manual dan simulasi software ETAP Power Station 12.6 dalam tiga kondisi meliputi 0.572% untuk kondisi gangguan hubung singkat salah satu fasa ketanah, 0.884% untuk kondisi gangguan arus hubung singkat fasa ke fasa dan terakhir 0.884% untuk gangguan arus hubung singkat tiga fasa. Selanjutnya, hasil perhitungan arus hubung singkat tersebut akan digunakan sebagai indikator penentu kesesuaian kapasitas pemutus PMT (Circuit Breaker) GI Gandul 150/20 kV, diperoleh bahwa perbandingan rating pemutus PMT yang terpasang (existing) lebih besar terhadap hasil pemilihan rating pemutus PMT berdasarkan perhitungan manual. Sehingga dapat disimpulkan bahwa pemutus tenaga yang terpasang pada di GI Gandul 150/20 kV memiliki kapasitas yang sesuai dengan kebutuhan dan masih layak digunakan.
Irfan Hidayat, Analysis of Inrush Flow when Switching Bank Capacitors on Busbar 2. Thesis. Jakarta, Electrical Engineering Education Study Program, Faculty of Engineering, Jakarta State University 2018. Supervisor: Nur Hanifah Yuninda, ST., MT., And Imam Arif Raharjo, S.Pd., MT. This study aims to analyze the inrush current when switching bank capacitors. The inrush current can be defined as the magnitude of the current surge that first appears in the circuit, when the circuit is connected to the load. As with transient phenomena, inrush currents in electrical circuits are considered undesirable. In every electrical equipment there must be an inrush current. The inrush current is dangerous for the system when the peak value of the inrush current is very large. To reduce the value of inrush current using a series reactor. The research method used in this study is the experimental method using a research design with pre-experimental design used is one-group pretest-posttest design. In collecting data, the circuit inductance data is collected and on the bank capacitors. To analyze how much the inrush current and frequency before and after the addition of a series reactor. The results showed inrush current when switching capacitor banks before the addition of series reactors exceeded the IEEE Std C37.012-2005 standard where the inrush current is allowed 100 times the rms current. The value of the inrush current and frequency at each step before the addition of the series reactor is: step 1 = 16.29 kA, 4.16 kHz; Step 2 = 289.7 kA, 147.32 kHz; Step 3 = 349.22 kA, 133.2 kHz; Step 4 = 372.47 kA, 126.28 kHz; Step 5 = 386.03 kA, 122.7 kHz; Step 6 = 410.146 kA, 125.15 kHz. The value of the inrush current and frequency at each step after the addition of the series reactor is: step 1 = 1.1 kA, 0.2 kHz; Step 2 = 26.56 kA, 13.5 kHz; Step 3 = 30.68 kA, 11.7 kHz; Step 4 = 36.35 kA, 12.3 kHz; Step 5 = 41.08 kA, 13.05 kHz; Step 6 = 45.27 kA, 13.8 kHz. So that the inrush current is in accordance with the IEEE Std C37.012-2005 standard. ABSTRAK Irfan Hidayat, Analisis Arus Inrush saat Switching Kapasitor Bank pada Busbar 2. Skripsi. Jakarta, Program Studi Pendidikan Teknik Elektro Fakultas Teknik Universitas Negeri Jakarta 2018. Dosen Pembimbing: Nur Hanifah Yuninda, ST., MT., dan Imam Arif Raharjo, S.Pd., MT. Penelitian ini bertujuan untuk menganalisis arus inrush pada saat switching kapasitor bank. Arus inrush dapat didefinisikan sebagai besarnya lonjakan arus pertama kali muncul pada rangkaian, saat rangkaian terhubung dengan beban. Sama halnya dengan fenomena transien, arus inrush dalam rangkaian listrik dianggap sebagai hal yang tidak diinginkan. Pada setiap peralatan listrik pasti terjadi arus inrush. Arus inrush berbahaya bagi sistem ketika nilai puncak arus inrush terjadi sangat besar. Untuk mereduksi besar nilai arus inrush menggunakan reaktor seri. Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimen menggunakan rancangan penelitian dengan desain pre-experimental yang digunakan adalah one-group pretest-posttest design. Pada pengumpulan data, dilakukan pengambilan data induktansi rangkaian dan pada kapasitor bank. Untuk menganalisis seberapa besar arus inrush dan frekuensi sebelum dan sesudah penambahan reaktor seri. Hasil penelitian menunjukan arus inrush saat switching kapasitor bank sebelum penambahan reaktor seri melebihi standart IEEE Std C37.012-2005 dimana arus inrush yang di ijinkan 100 kali arus rms. Besar nilai arus inrush dan frekuensi pada setiap step sebelum penambahan reaktor seri sebesar: step 1 = 16,29 kA, 4,16 kHz; Step 2 = 289,7 kA, 147,32 kHz; Step 3 = 349,22 kA, 133,2 kHz; Step 4 = 372,47 kA, 126,28 kHz; Step 5 = 386,03 kA, 122,7 kHz; Step 6 = 410,146 kA, 125,15 kHz. Besar nilai arus inrush dan frekuensi pada setiap step setelah penambahan reaktor seri sebesar: step 1 = 1,1 kA, 0,2 kHz; Step 2 = 26,56 kA, 13,5 kHz; Step 3 = 30,68 kA, 11,7 kHz; Step 4 = 36,35 kA, 12,3 kHz; Step 5 = 41,08 kA, 13,05 kHz; Step 6 = 45,27 kA, 13,8 kHz. Sehingga arus inrush sesuai dengan standart IEEE Std C37.012-2005.
Abstract This study aims to identify the magnitude of energy consumption currently used and identify all possible energy savings including detecting all possible fire hazards based on audit data obtained using Power Quality Analizer (PQA) and Thermal Imager. The methods included include: collection and introduction of historical data, calculating IKE, measuring real power (kW) / apparent power (kVA), power factor, maximum / minimum frequency, voltage / current between phases, voltage / load unbalance, voltage harmonic / flow, checking Energy Consumption Intensity (IKE), recognizing the possibility of Energy Saving Opportunities (PHE), analyzing PHE, Making PHE recommendations and implementing PHE in the field to obtain the value of Energy Consumption Instances according to standards. Based on the measurement results show the carrying frequency, voltage fluctuations, voltage harmonics, and voltage imbalances are still in accordance with the standard. So that it can be concluded that the Faculty of Engineering, Jakarta State University, is still safe from the danger of building fires. Abstrak Penelitian ini bertujuan dilakukan guna mengidentifikasi besarnya konsumsi energi yang saat ini digunakan dan mengidentifikasi segala kemungkinan penghematan energy termasuk mendeteksi segala kemungkinan bahaya kebakaran berdasarkan data audit yang diperoleh dengan menggunakan Power Quality Analizer (PQA) dan Thermal Imager. Metode yang dilakukan meliputi: pengumpulan dan penyusuan data historis, menghitung IKE, melakukan pengukuran daya nyata (kW)/daya semu (kVA), faktor daya, frekwensi maksimum/minimum, tegangan/ antar phasa, unbalance tegangan/beban, harmonik tegangan/ , pemeriksaan Intensitas Konsumsi Energi (IKE), mengenali kemungkinan Peluang Hemat Energi (PHE), menganalisa PHE, Membuat rekomendasi PHE serta mengimplementasikan PHE dilapangan guna mendapatkan nilai Instensitas Konsumsi Energi sesuai standar. Berdasarkan hasil pengukuran menunjukkan bawa frekuensi, fluktuasi tegangan ,harmonisa tegangan, dan ketidakseimbangan tegangan masih dalam sesuai dengan standar . Sehingga dapat disimpulkan bahwa Fakultas Teknik Universitas Negeri Jakarta dari sisi kelistrikan masih aman dari bahaya kebakaran gedung.
The level of electrical quality has become a necessity in supporting human activities, especially in voltage stability. To support the calculation of voltage stability, various load flow methods have been developed. Load Flow Analysis is very important in planning and implementation in designing future power system expansion and in determining the best operation of the existing system. The tools for calculating simulation based power flow are the Power Tool Analysis Toolbox (PSAT) and the Transient and Electrical Analysis Program (ETAP). This paper discusses the comparison of the performance of the two load flow simulation tools, PSAT and ETAP. The Gandul Substation network data in Indonesia in April 2019 with a load of 15.37 MW is used for simulations. Load flow analysis is performed using Newton Raphson method with a network of 11 buses (150 kV, 20kV). The simulation results show that PSAT has a deviation of about 0.663% to the Bus Voltage from GIG and ETAP simulation has a deviation of about 0.562% to the Bus Voltage from GIG.
The purpose of this study was to determine the effect of harmonic distortion with harmonic load on the performance of trip Type C Flow Miniature circuit breakers 2A, 4A, and 6A The method used is descriptive quantitative method. The research subjects to be examined are miniature circuit breakers. In collecting data, carried out harmonic load population testing and testing with a Power Quality Analyzer with a voltage source PLN and Genset, the results of MCB samples obtained were analyzed for trip characteristics referring to SPLN 108 : 1993 and IEEE. The results showed that from testing trip characteristics using harmonic loads and PLN voltage sources and generators carried out on miniature circuit breakers trip changes occurred which were still within the standard limits of SPLN 108: 1993. Then the results of testing of non-linear load such as a combination of incandescent, spotlight lamps, and fluorescent lamp ballast electronic, with currents flowing at 1.5 x In on the MCB. In the MCB using the PLN voltage source get MCB 2A THD Current 71.45%, MCB 4A THD Current 46.64%, MCB 6A THD Current 34.71% while the MCB using Genset voltage source get MCB 2A THD Current 52.07%, MCB 4A THD Current 31.54%, MCB 6A THD Current 24.62%. From the tests that have been done in getting the results, the greater harmonic distortion (THD Current) can affect the working mechanism of the MCB which results in faster MCB termination time in terminating the circuit. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui pengaruh distorsi harmonisa dengan beban harmonik terhadap kinerja trip miniature circuit breaker Tipe C Arus 2A, 4A, dan 6A Metode yang digunakan adalah metode deskriptif kuantitatif. Subjek penelitian yang akan diteliti adalah miniature circuit breaker Pada pengumpulan data, dilakukan pengambilan populasi beban harmonik dan melakukan pengujian dengan alat ukur Power Quality Analyzer dengan sumber tegangan PLN dan Genset, hasil pengujian sampel MCB yang didapat lalu dianalisis mengenai karakteristik trip yang mengacu pada SPLN 108:1993 dan IEEE Hasil penelitian menunjukkan bahwa dari pengujian karakteristik trip dengan menggunakan beban harmonik dan sumber tegangan PLN dan genset yang dilakukan pada miniature circuit breaker terjadi perubahan trip yang masih dalam batas standar SPLN 108:1993. Kemudian hasil pengujian terhadap beban non linear berupa lampu hemat energi, lampu spotlight, dan kombinasi lampu pijar dengan arus yang di alirkan sebesar 1.5 x In pada MCB. Pada MCB dengan menggunakan sumber tegangan PLN di dapatkan MCB 2A THD Arus 71.45%, MCB 4A THD Arus 46.64%, MCB 6A THD Arus 34.71% sedangkan Pada MCB dengan menggunakan sumber tegangan Genset di dapatkan MCB 2A THD Arus 52.07%, MCB 4A THD Arus 33.35%, MCB 6A THD Arus 24.62%. Dari pengujian yang telah dilakukan di dapatkan hasil semakin besar distorsi harmonik arus (THD Arus) maka dapat mempengaruhi mekanisme kerja pada MCB yang mengakibatkan waktu pemutusan MCB menjadi lebih cepat dalam melakukan pemutusan rangkaian.
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