CONCEPTUAL DESIGN FOR MITIGATING HARMONIC DISTORTION ON ESP INSTALLATION: CASE STUDY IN KAJI SEMOGA FIELD, MEDCO E&P INDONESIA

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

STUDI KELAYAKAN PEMBANGUNAN PEMBANGKIT LISTRIK TENAGA UAP 2X50 MW DENGAN MENGGUNAKAN BOILER CIRCULATING FLUIDIZED BED COMBUSTION DI KENDARI, SULSELRABAR

This research is an explanation from feasibility study of the project; Which aims to analyze the feasibility of financially the development of Power Plant (PLTU) Capacity 2 × 50 MW by using boiler circulating fluidized bed combustion (CFB). Indicators used to analyze the feasibility of Power Plant (PLTU) Capacity 2 × 50 MW are: payback period, net present value (NPV), internal rate of return (IRR), sensitivity analysis, variable operating costs, and fixed operating costs. This research analyzes investment feasibility and risk from financial aspect by considering interest rate of loan (in USD) equal to 6% per year. The calculation of the value of investments made amounted to 1074.63 USD / kW, and net present value (NPV) of 61.8270 million USD with an internal rate of return (IRR equity) of 14 percent, and the results of this study has also been calculated payback period (PP) during 6.69 years, very feasible, because it is shorter than the project age (30 years); Then it can be concluded that the tariff of selling electricity after levelized is 8.1582 Cent US

STUDI KOMPARASI ANTARA PRACETAK MASIF DAN FLY SLAB STUDI KASUS: STRUKTUR GEDUNG RUSUNAWA SURAKARTA

Fly slab is one of the precast concrete slab technological development that has been researched and patented by Ir . Sulistyana in 2011. The concept is how to reduce the mass of precast concrete slab with makes ribs on the concrete slab. To minimize the volume of concrete plate and while maintaining tensile area to makes the style transfer mechanism of concrete to reinforcement or otherwise, are expected to reduce the mass of the structure without reducing strength. Comparative study will be conducted in this research based on Planning of Building Construction Rusunawa in Surakarta, Central Java. This comparative study is done by compare the results of the structural design Rusunawa existing Surakarta and ready to build using conventional precast concrete massive, with a new structure plan Rusunawa Surakarta with using fly slab as material plate, beam and column structural elements using conventional concrete. Based on the analysis results, showed reduction in the volume of concrete and reinforcement elements beam and coloumn Rusunawa Surakarta structure is 20,25% and 6,3 %. Reduction reaction in the vertical structure of the Rusunawa Building in Surakarta is 16,93%

MENYUSUTKAN RUGI – RUGI DAYA PADA PENYULANG MTL DAN PENYULANG BJM DENGAN MEREKONFIGURASI JARINGAN TEGANGAN MENENGAH

One way to optimize the flow of energy on a distribution channel is to reconfigure the network. This research aim to get optimal distribution system at PT.PLN Area Banjarmasin Penyulang BJM02, MTL04 and MTL10. The MTL10 repeater that will be recovered by reconfiguring the network to divide the load on the nearest repeater is the BJM02 and MTL04 feeders. This study uses 3 scenarios with regard to the state of the existing network to obtain a minimum power loss. In order to obtain a good conclusion then the analysis obtained that before the reconfiguration penyulang BJM02, MTL04 and MTL10 experienced energy losses 521,286 W. Resolving the problem then the network reconfiguration can be done on the BJM02 Repeater will divide the load of KST02 and the load of the earth in the circumference basirih earth in the feeder MTL04 to the MTL10 feeder. In configuring the network the thing that can be done is to open the KST02 circuit breaker at the KS.Tubun relay substance and close the disconneting switch (BJM02 Repeater) so that it connects with the MTL04 repeater. The MTL04 repeater will cut the muzzle throughput cable and connect the cable to the earth's basirih circular housing so that the load until KST02 is connected. The results obtained after reconfiguration can minimize power losses of 20,418 W

KARAKTERISTIK PEMAKAIAN TENAGA SURYA PADA MODUL SOLAR SMART SEBAGAI IMPLEMENTASI DARI LISTRIK KERAKYATAN

Solar Street Lighting Light (PJU-TS) is a street lighting that uses sunlight as a source of electrical energy. The Solar Street Lighting (PJU-TS) is very suitable for roads in areas not covered by PLN electricity and also areas experiencing electrical energy crisis especially in remote areas. But recently PJU Solar Power is also rife applied in urban areas such as in the main streets, residential street, garden lights, campus area, factory area, bus stops, parking lots, gas stations (gas stations) and so on. In the process of designing the lamps for the first PJU is to determine the load installed,then calculate the number of solar panels or photovoltaic needs, then calculate the battery requirements and determine the capacity of the battery charge regulator (BCR). Then for PJU lamps to operate automatically installed light sensor or light dependent resistor (LDR) as a switch to turn on and off PJU lights. Then after all in the know then in the process of development researchers observed about how the performance of the controller in terms of automatic mode, manually circuit and its equipment components as well as sensors and modems. From there soughtcharacteristics of each

WITRICITY (WIRELESS ELECTRICITY)

Electricity is an integral part of every human being and power transmission by wires is a necessityto fulfill the need of electricity. ‘What if we can come out of this tangled wire-theory?’- With this view, Nikola Tesla introduced the concept of wireless power transfer in early 20th century. Wireless Power Transfer (WPT) is not only reliable and efficient but it is also eco-friendly and cost effective. A lot of concepts for WPT are already discussed by researchers, scientists and inventors. In addition to the available works and principles, this paper explains the basic concept, design and implementation of wireless electricity with magnetic induction technique and determining its practical result carried out with the same

DESK CHECK TABLE PADA FLOWCHART OPERASI PERKALIAN MATRIKS

Untuk menentukan output suatu pseudocode algoritma biasanya mengalami kesulitan, terutama pada logika algoritma repetition control stucture atau nested looping, yang biasanya rumit, sehingga sulit untuk ditebak atau ditentukan outputnya. Misalkan, apakah akhir dari suatu looping? Dimanakah batas awal (start) dan batas akhir (stop) dari suatu looping? Mulai dari manakah dan sampai dimanakah batas badan looping? Apakah harus looping atau berhenti? Apakah hasil looping bernilai true atau false? Apakah looping selama hasil boolean atau kondisi bernilai true? Apakah looping sampai kondisi bernilai true? Selain hal tersebut, mengingat keterbatasan nalar manusia untuk mengingat atau melakukan hal tersebut, maka kepentingan akan suatu tools sangat sekali dibutuhkan dalam hal menganalisa ini. Berdasarkan kondisi permasalahan itu, penulis mencari suatu rancangan atau suatu metode, bagaimana cara mudah untuk menganalisa variable baik input atau ouput beserta logika algoritmanya pada suatu pseudocode algoritma, inilah tujuan penulis merancang suatu tabel, yang penulis bernama desk check table. Dalam hal ini fungsi desk check table adalah mendokumentasikan history dari setiap perubahan sejumlah variabel yang dianalisa, baik variabel input atau output beserta logikanya dengan menggunakan suatu tabel. Artikel ini juga, sekaligus sebagai artikel lanjutan dari artikel penulis sebelumnya, dengan judul “Algorithm Design Of Operation Multiplication Matrix By Using Flowchart Method”. Berarti tujuan dari artikel ini adalah menganalisa kebenaran jawaban-jawabanyang sudah penulis jawab pada artikel tersebut, serta pembuktian yang akan penulis jadikan contoh soal, yaitu pada soal Aljabar Linier mengenai Perkalian Matriks, sama halnya dengan artikel sebelumnya

MODEL DATA LOGGER UNTUK MENGUKUR ARUS, TEGANGAN, DAN DAYA PADA SIMULASI PEMBANGKIT LISTRIK TENAGA ANGIN DAN SURYA MENGGUNAKAN ANDROID

Monitoring System data at a power plant is the most important part in controlling and supervising a power plant. But in fact its technology monitoring system is still a lot of weakness. This thesis aims to innovate in reading current, voltage, and power at power plants by creating a data logger models that utilize the Arduino microcontroller. Current and voltage will be read by the ACS712 current sensor, then the value of current and voltage will be processed by the Arduino to be changed from analog data into digital data. Once the data is processed and the data will be sent to the Web Server as a database via GPRS Module by utilizing the internet signal. Applications designed on this system using a mobile based application programming android. Application as a user interface making it easier to monitor the generation of data in realtime via android smartphone. Then the data will be processed by the application so that it can be used to view history data readout and print reports. So later this monitoring system will be used to check power at a power plant using only virtual android smartphone and can be accessed anywhere

UPAYA TERTIB LISTRIK TERHADAP INSTALATIR KABEL DI DAERAH PADAT PENDUDUK (STUDY KASUS KEC. TAMBORA)

Electricity is a very important thing in everyday life, in the absence of electricity all things related to this heat energy will experience obstacles. The densely populated residential area located in Tambora Village, Kosambi District, West Jakarta, are a targeted area for an orderly area of electricity, where some of its people illegally stole electricity. This is very dangerous for users or harm PLN, for that criminal effort must be eradicated through the extension program or orderly socialization in order not to cause a fire. The method used is observation in the area of tambora village by looking at the connection installation used. The objectives of the program of orderly electricity socialization are: to give understanding to the people of Tambora Village due to electrical locking (stolen) and electrical installer failure of fire hazard due to short circuit

PROSES PERAKITAN DAN PENGUJIAN KUBIKEL SM6 VACUUM CIRCUIT BREAKER 20 kV DI PT. GALLEON CAHAYA INVESTAMA

At PT. Galleon Cahaya Investama which in this case much needed electrical appliance to be used in distribution network that is one tool of cubicles before marketed at other company. Cubiclesis a connecting device, divider and disconnecting load doing testing. In this cubicle insulation testing,cubicle is already in pairs and have connected with The transformer after that just done insulation testing with mega ohm meter, because cubicle is already 5 with the transformer then the insulation resistance value will be reduced because of the existing transformer windings in it. In testing leakage current PMT component is still in good condition, seen from test results that is still Below 300 μA, and in the test of isolation resistance, also in good condition, looking from the results that have been tested still shows the value above the standard isolation resistance. With visual inspection by looking at the results of work with the eyes and tools, namely see the shape, rust and placement of components that have been right