Nurhalim Nurhalim, Nurhalim
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Journal : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Analisis Ekonomi Penerapan Konservasi Energi Listrik Penerangan Jalan Umum Jalan Jendral Sudirman Kota Pekanbaru Adli, Rian; Nurhalim, Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

One of the efforts that can be done from the depletion of the electric energy sources supply was to reduce the consumption of electric energy. It can be applied to the streetlights without reduced the use of its value. Jendral Sudirman Street Pekanbaru is one of the arterial roads that used conventional lamp SON-T 250 Watt. The existing streetlights condition at Jendral Sudirman street was not standardize at all points that have been set because of it’s not appropriate specification and placement of the pole. The streetlights conservation at Jendral Sudirman street to the 150 Watt LED energy saving lamp be required investment cost of Rp 1,289,666,668, with the electrical energy savings of 15 264 kWh per month and electrical cost savings per month up to Rp 23,265,999.36. The economic analysis which is obtained from the streetlights conservation activities at Jendral Sudirman in the form of NPV (Net Present Value) as much Rp 957,717,056.10, Gross B / C (Gross Benefit Cost Ratio) 1,742, and the payback period of benefits obtained (Payback Period) for 5.727 years.Keywords : Conservation, LED, economic analysis, NPV, Gross B / C, Payback Periode
Pengaruh Tahanan Kaki Menara Type Gantry Terhadap Terjadinya Back Flashover Pada Isolator Saluran 115 Kv Pt. Chevron Pacific Indonesia Manik, Jefri; Ervianto, Edy; Nurhalim, Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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This study describes analysis of tower footing resistance effected backflash voltage across a transmission line 115 kV insulator at PT. Chevron Pacific Indonesia. Back flashover analysis on insulator string provides ATP software for simulation. Analysis process is done by the entire transmission line parameter model such as a tower, lightning impulse, power line conductor and tower footing resistance. The factor of this study includes,front time of lightning stroke, and tower resistance. Simulations is done with lighting strike on the tower and mid-span with four types of impulse. To analysis of tower footing resistance effected back flashover across a transmission system insulator, Simulations are done by varying the tower footing resistance from 1Ω - 30Ω. Over Voltage on insulator for every tower footing resistance will be compare to critical flashover insulator (CFO) in order to obtain the maximum resistance is allowed to avoid the back flashover on insulator.Keyword: Tower fotting resistance, Back flashover, ATP, Insulator
Perancangan Mesin Penggulung Kumparan Transformator Berbasis Mikrokontroller Atmega8535 Gapita, Reinaldo Syas; Hamzah, Amir; Nurhalim, Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Transformer is a tool to transfer electricity power inter two or more electricity circuit through electro magnetic induction. Transformer consist of two parts, they are primary and secondary part, every part consist of several coils with the certain number and zise. In the making transformer, rolling process is made repeatedly in order to reach the standarized transformer criteria it took time and effort hardly to reduce this impact. It is needed a tool which can rool fastly and automaticly. This tool used 200Vac motor and 1350 RPM speed as the roller, so that it can reach the source electric power and fast speed for autoprocess. It uses ATMEGA8535 microcontroller as the main cycle where the microcontroller receive the number of coil through keypad interface. Microcontroller controls the roller motor by comparing the coils numbers which is entered by the coil numbers processed by the motor. The coil number detection processed by ten magnetic sensor through statical magnet which was available on the shaft of the motor. Comparatorchanges the sensor output voltage into digital pulses. This digital were counted by the microcontroller where every ten pulses equal one coils is same with the input number, it means the microcontroller shut down the motor.Keywords: Transformer, Motor, ATMEGA8535, Magnetic sensor, Comparator.
Optimasi Pembagian Beban Pada Sektor Pembangkitan Pekanbaru PLTD/G Teluk Lembu Pada BUS 20 KV Dengan Metode Newton Wahyu, Arbi; Firdaus, Firdaus; Nurhalim, Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The electricity demand always increases and electricity consumption too changes every time. The cost of power generation also changes when the electric load changes. planning is required to determine the portion of the generation of each plant in order to obtain an economical generation. In this study, solving solution using Newtons method aided with software Microsoft Office Excel and Matlab 2008b. The results of the testing that has been done, that PLTMG Haleyora operates at 08.00 am at 14.484 MW, while the maximum operating diesel from 10.00 am to 24.00 pm for 7 MW. while the peak load period all plants operate optimallyKeywords: Optimization, Load, Generation, Method Newton
Analisa Kinerja Proteksi Gardu Induk Garuda Sakti Menggunakan Software Berbasis Visual Basic 6.0 Febriyanty, Shely Ayu; Nurhalim, Nurhalim; Ali, Irsan Taufik
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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PT. PLN (Persero) Garuda Sakti Substation is the center of power settings and load demand as the center of security equipment power system as well as the enter of the process of normalization of the disturbances in the territory of Pekanbaru. The goal of research to determine the quantity of fault,protection performance, and reliability of Garuda Sakti Substation. Besides, produce useful software to calculate the percentage of the quantity of fault, the precentage of protection performanceand reliability of the substation by long outages. Type of this research is qualitative descriptive. Thecalculation is done using software based Visual Basic 6.0. From the data obtained, in 2013-2014 occurred 20 times faults in Transformers and Transmission 150 kV. Protection system that works when the interruption occurs 20 times in the Garuda Sakti Substation at 2013-2014, there are five kinds of relay is: relay OVR / UVR, relay REF / SBEF, rele DF / DT, rele rele UVLS and the entire PMT 150 KV rele has a 100% reliability. Garuda Sakti Substation has good reliability because LOLPvalue in 2013 amounted to 0,234953 days per year and in 2014 of 0,09023 days per year (suitable with the standards of PLN below or equal to 3 days per year).Keywords: Fault, Protection, ENS, LOLP, Reliability Substation, Visual Basic 6.0.
Analisis Pembangunan Pembangkit Listrik Tenaga Sampah (Pltsa) Kota Pekanbaru Ditinjau Dari Aspek Ekonomi Teknik Sepriona, Tatik; Nurhalim, Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Renewable energy is a natural energy source that can be directly utilized freely. In addition, the availability of renewable energy is unlimited and can be used continuously. One of them is by utilizing waste that can potentially be converted into electricity. So far in the Pekanbaru the waste has not been sterilized. It is only founded in the garbage dump of Muara Fajar. Pekanbaru has an area of 632.26 km², with a population reaching 1,064,566 people, every day being able to produce trash up to1,112 tons (density 0.3). By looking at the situation, it is necessary to do a proper analysis to determine the feasibility of building a power plant garbage power. The method used for calculating NPV and PP is the least cost method. From the results obtained the amount of electrical energy produced in a year 112592260.99 kWh / year, while the NPV value = Rp 80,061,249,724, and PP value 8 years. Lastly, the results of analysis given the construction of PLTSa in Pekanbaru fulfill the eligibility criteria to be based.. Keywords: energy, garbage dump, NPV, PLTSa, waste
Analisis Efektivitas Pembangunan Gardu Induk New Garuda Sakti Untuk Mengurangi Rugi Daya Saluran Distribusi Primer 20 KV Sulistiani, Rani; Nurhalim, Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The New Garuda Sakti substation (GI NGS) is a substation that function to reduce electrical power losses at Pekanbaru region. This substation has five feeders of 20 KV which are distribution the load from the previous feeders supplied from three substations. By calculating the amount of power losses, electricity costs, comparison of power losses before and after in the New Garuda Sakti Substation, it can be seen the effectiveness of the substation construction. The total power losses before being supplied from the GI NGS is 201,801.77 W and after being supplied from the GI NGS is 34,251.94 W. Then, the average power losses per month can be reduced by 43,600.05 W and the average savings cost per month is Rp. 26,468,513.33. Thus, the presence of GI NGS is very effective in reducing electricity losses for the Pekanbaru region and saving operational cost for the company.Keywords : The effectiveness of GI NGS, distribution load, power losses, average power losses
Analisis Kebutuhan Dan Penyediaan Energi Listrik Di Kota Pekanbaru Tahun 2015-2024 Dengan Menggunakan Perangkat Lunak LEAP Gaffari, M Ridwan; Nurhalim, Nurhalim
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The estimation of power consumption within Pekanbaru area in the coming decades is being analyze using of the software Long-range Energy Alternative Plan Systems (LEAP). The calculation is done by putting some variables of electrical energy consumption and the grow of electric consumption. The result of LEAP analysis is showing the grow of power consumption during period of 2015-2024 by 9,63% per year or in the other word increasement from 1667,43% GWh into 3943,04% GWh. The government and electric company (PLN) need to put attention and effort to make sure the figure of grow are able to realize. The effort is indicated by localizing the potential of power generation to be build within the area of Riau Province. Those potential of power generator includes some renewable energy i.e Microhydro Power Plant, Solar Power Plant Centralized, Solar Street Lighting, and biomass/biogass plant. Some of typical resources can be considered such as water potential, coal potential, and peat potential.Keywords: Electricity, Intensity energy, LEAP, Renewable energy