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<![CDATA[ANALISA PROTEKSI HILANG EKSITASI PADA GENERATOR SINKRON DI PLTGU MUARA TAWAR GT UNIT 1.3 ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.77
<![CDATA[One of the operating disruptions that occur in the synchronous generator is the loss of excitation. Where this interference will cause the generated reactive power generator is reduced even lost so that the synchronous generator must absorb the reactive power of the system. If this condition occurs continuously can cause damage to the stator coil, will occur worsening insulation and the stator end iron so as to cause short circuit, or interruption of soil relations in the future. So to anticipate the impact of such disturbances required a protection system. The protection system used in PLTGU Muara Tawar GT unit 1.3 is a minimum reactance relay. This jurnal discusses how to determine the value of loss excitation protection setting using minimum reactance relay and offset relay mho so that synchronous generator can work optimally. From the research calculation the minimum reactance relay usage will work on XA-setting value zone (-2.55 p.u) with 0.5 seconds delay time, XB-setting (offset) of -0.1156 p.u with 0.5 seconds delay time. As for offset relay mho will work on zone 1 and zone 2 for offset value of -0.109 p.u with delay time 0.1 second. As for zone 1 for the base impedance ( ) of -1.0 p.u with a delay time of 0.1 seconds and zone 2 synchronous reactance value ( of 2.423 p.u with a delay time of 0.5 seconds. From those results it is considered sufficient to detect the loss of excitation in the synchronous generator.]]>
<![CDATA[FIRE SENSING SYSTEM ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.78
<![CDATA[The current fire hazard is increasingly common, not only from human error or also gas leakage and the use of electrical equipment that does not detect earlier the possibility of fire and this tool is a fire sensing system. The work system is meant by some of the same ways and the occurrence of fire that exist in a room, and provide it with a buzzer. The purpose of making this tool is for an alarm system that can share a fire and explain how the process works. The result of making this tool, the sensor managed to detect the heat caused by the fire and buzzer issued an alarm sound.]]>
<![CDATA[PENGARUH RUGI-RUGI SALURAN PADA JARINGAN TRANSMISI TEGANGAN MENENGAH PENYULANG E2 GARDU INDUK EMBALUT TENGGARONG ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.79
<![CDATA[A good electric power system must have a voltage value that does not exceed the tolerance limit and small power losses. The tolerable limit for a voltage value (+ 5%; - 10%) of its nominal value. A constant voltage value will optimize the performance of the electrical equipment used by the consumer. While the small power losses will keep the power supply in accordance with the needs of consumers, and can reduce financial losses that occur during the transmission and distribution process. In this thesis will be a study to improve the quality of stress on the distribution network by reconfiguring the network. The process of repair is done on medium voltage network by opening or closing Fuse Cut Out, Load Break Switch, Disconnecting Switch, adding substation insertion, and change the position of Process Tap Changer to provide the most optimum repair value. Improved voltage on this thesis is simulated using ETAP 12.6.0 software. From the simulation results will be obtained the most optimal voltage improvement is in the case study 1 on the most bus end of the Bus GRA 706 with a voltage of 16.12 kV, case study 2 voltage rose to 19.66 kV and case study 3 voltage to 19,661 kV.]]>
<![CDATA[PERANCANGAN KENDALI GARASI RUMAH BERBASIS WEB VIA WIRELESS LAN ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.80
<![CDATA[In this research designed data communication system for home based garage control via wireless LAN. Data communication systems for Web-based control via the wireless LAN is a system used to monitor and control the garage door with the web remotely. Controlling center lies in a browser that can be accessed through a smartphone connected to a LAN network that will be the user interface with the garage door to be controlled. In this system will be paired Ethernet module connected wireless router as telecommunications media. With this system, the user can control the monitor, garage door remotely while it is connected to the wireless router. So the user does not need manual control at close range, the user can also know the state-controlled garage door via the web. The final stage is a software design then the system can be tested as a whole to determine the ability of the system, response time required to perform the command system. And QoS parameter this is a response time and throughput. Testing by means of ping test to obtain. After that will be analyzed in the response time and throughput it takes to send commands from a web browser that is controlled from a smartphone to a microcontroller. The results obtained after the system has been created is a system can connect to a local area network in a home and after testing all of obtained the required response time of the system to perform the command average time 48.106 ms and throughput/ transmission speed 10.989 bit/sec. It can be concluded that the design of microcontroller-based web browser via LAN wireless can be implemented.]]>
<![CDATA[PERANCANGAN RANGKAIAN PENGUAT DAYA DENGAN TRANSISTOR ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.81
<![CDATA[The power amplifier circuit is a circuit used to amplify or magnify input signals. The use of a transistor as an amplifier is that the current on the base is used to control the larger current given to the collector through the transistor. The small current change on the controlling base is what is called a large change in the current flowing from the collector to the emitter. The advantages of the amplifier transistors can not only amplify the signal, but these transistors can also be used as current amplifiers, voltage amplifiers and power amplifiers.]]>
<![CDATA[PERANCANGAN SISTEM KONTROL GLYCOL REGENERATION UNIT DENGAN DCS DeltaV DI ONSHORE GAS PLANT ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.82
<![CDATA[The glycol regeneration process is an integrated part of the glycol dehydration unit (GDU) system. Each plant has a customized configuration to the needs of the process, for the case in this onshore field because the gas produced from the well is good enough with a fairly low water content, then does not use Glycol Contactor. Instead used low temperature separator and glycol generation unit. DCS DeltaV is used to operate, documentation and optimization of gas processes. By using oscillation method and closed loop system obtained PID tuning result with parameter P = 387, I = 57 and D = 53. The response of the control system is conditioned overshoot from its setpoint to accelerate the rise of the temperature plant. When the temperature of glycol regeneration is at 2620 F, the alarm will light Hi limit and Hi Hi limit at 2900 F, while at 2450F the alarm will light low limit and Low Low limit at temperature 00 F.]]>
<![CDATA[RANCANG BANGUN RUANG PINTAR MINIMALIS TENAGA SURYA DENGAN SISTEM KONTROL BERBASIS ARDUINO ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.83
<![CDATA[This study aims to design a concept of Smart Room System with a source of electricity derived from the Solar Cell System in a home which can facilitate human activities while in the house such as turning on and off the lights, open and close the door of the house. Smart Room System is a technology that allows homeowners to control the entire contents of the house in one hand, can be a smartphone or other gadgets. In improving security and comfort, this system is controlled by Arduino microcontroller. Arduino is connected to a computer via USB, programmed using C language via Arduino IDE by uploading compiled code to Arduino board. Arduino microcontrollers can be utilized as a home light controller, automatic door control and feature controller of other electronic devices. Associated with the many electronic features used in the Smart Room System, the source of electricity used is from a solar power plant that is known that solar or solar is one source of renewable energy is much cheaper, environmentally friendly and more efficient because it minimizes the use of sources electricity PLN 220 V.]]>
<![CDATA[STUDI PERAMALAN BEBAN RATA – RATA JANGKA PENDEK MENGGUNAKAN METODA AUTOREGRESSIVE INTEGRATED MOVING AVERAGE (ARIMA ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 2 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i2.84
<![CDATA[Forecasting. Plans, power plants ,. Electricity needs are increasingly changing daily, so the State Electricity Company (PLN) as a provider of energy must be able to predict daily electricity needs. Short-term forecasting is the prediction of electricity demand for a certain period of time ranging from a few minutes to a week ahead. in shortterm electrical forecasting much of the literature describes the techniques and methods applied in forecasting, Autoregresive Integrated Moving Average (ARIMA), linear regression, and artificial intelligence such as Artificial Neural Networks and fuzzy logic. Short-term forecasting will be done by the authors using time series data that is the data of the use of electric power daily (electrical load) and ARIMA as a method of forecasting. ARIMA method or often called Box-Jenkins technique to find this method is suitable to predict variable costs quickly, simply, and cheaply because it only requires data variables to be predicted. ARIMA can only be used for short-term forecasting. ARIMA is a special linear test, in the form of forecasting this model is completely independent variable variables because this model uses the current model and past values of the dependent variable to produce an accurate short-term forecast.]]>
<![CDATA[ANALISA DCS (DISTRIBUTED CONTROL SYSTEM) PADA PROSES POLIMERISASI ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 1 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i1.160
<![CDATA[With the growing technology in industrial markets today, many factories require DCS (Distributed Control System) to control the process equipment at the plant. DCS serves to read the response quickly on factory equipment that has been installed with the sensor. This paper will analyze the use of DCS in polymerization process at PT INDORAMA SYNTHETICS factory located in Jatiluhur - Purwakarta, West Java. In PT INDORAMA SYNTHETICS polymerization process using DCS CENTUM 3000 which can control and monitor every machine connected with DCS. With the use of DCS, PT.INDORAMA SYNTHETICS can control the flow of PTA tanks and EG tanks that produce a flow output of 10423 kg / h.]]>
<![CDATA[CONCEPTUAL DESIGN FOR MITIGATING HARMONIC DISTORTION ON ESP INSTALLATION: CASE STUDY IN KAJI SEMOGA FIELD, MEDCO E&P INDONESIA ]]>
<![CDATA[Redaksi Tim Jurnal]]>
<![CDATA[ Sutet Vol 7 No 1 (2017): JURNAL ILMIAH SUTET ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknik - PLN ]]>
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DOI: 10.33322/sutet.v7i1.161
<![CDATA[Meningkatnya penggunaan beban non-linier dalam instalasi kelistrikan mengakibatkan masalah distorsi harmonik dalam sistem kelistrikan industrial dan komersial.Beban non-linier yang banyak digunakan dalam operasi minyak dan gas bumi adalah variable speed drive (VSD) dan uninterruptible power supply (UPS). PT Medco E&P Indonesia memberdayakan Electrical Submersible Pump (ESP) sebagai metode produksi minyak bumi yang diterapkan di lapangan produksi Kaji Semoga. Instalasi ESP dilengkapi dengan VSD sebagai pendukung asut dan pengendali kecepatan motor penggerak ESP demi mencapai besaran produksi minyak bumi. Operasi VSD membangkitkan gangguan harmonik yang dapat mengganggu sistem daya listrik seperti panas berlebih dari peralatan listrik, kegagalan prematur pada peralatan berputar dan pembatas arus yang gagal kerja. Pada umumnya untuk mengendalikan masalah ini, harmonic filter dipasang untuk mengkompensasi distorsi harmonik. Instalasi harmonic filter berkontribusi pada biaya pemeliharan kehandalan sistem daya listrik di lapangan produksi Kaji Semoga. Makalah ini menjabarkan metode-metode alternatif untuk mengendalikan distorsi harmonik dalam sistem distribusi daya lsitrik termasuk pemasangan harmonic filter. Metode untuk mengendalikan distorsi harmoniktersebut termasuk penggunaan trafo phase-shifting. Metode lain untuk menanggulangi distorsi harmonik adalah merancang ukuran konduktor selain sebagai proteksi arus beban-lebih juga bisa menerima pengaruhharmonic pada arus beban. Metode-metode alternatif ini bisa mengurangi biaya dari usaha menghilangkan distorsi harmonik secara signifikan.]]>
