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All Journal Lontar Komputer: Jurnal Ilmiah Teknologi Informasi Jurnal Teknik Mesin Sinergi

Herman Nawir

Unknown Affiliation

Author-ID : 1706902

Computer Science & IT Energy Mechanical Engineering

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Electrical Daily Load Forecasting In Ramadhan Using Type-2 Fuzzy Logic In Sulselrabar System Marhatang Marhatang; Muhammad Ruswandi Djalal; Herman Nawir; Sonong Sonong
Lontar Komputer : Jurnal Ilmiah Teknologi Informasi Vol. 9, No. 3 December 2018
Publisher : Institute for Research and Community Services, Udayana University

This study discusses the daily electricity load forecasting 24 hours on 150 kV electric power systems sulselrabar. Forecasting electrical load requires the accuracy of the results with a small error. Peak load forecasting methods used to use smart methods Interval Type-1 Fuzzy Logic (IT1FL) and Interval Type-2 Fuzzy Logic (IT2FL) to predict the needs of the electrical load 1 Ramadan 2016. As input data, it was used load data from 2012 through 2016 for the same day each 1st of Ramadan each year, and as comparative data, it was used actual load data 1, 2016. For the Ramadan input variable, it was used two of the data Variation Load Difference (VLD Max) 2015 as an input variable X, VLD Max 2016 as an input variable Y. From the simulation results obtained highly accurate results where each method produces a very small error, where for methods of using IT1FL of 1.607778264% while using IT2FL by, 1.344510913%.

Perancangan Gardu Distribusi Pengembangan Perumahan Green Nurhidayat Romang Polong Herman Nawir; Muhammad Ruswandi Djalal; Muh. Yusril Hamma
Jurnal Teknik Mesin Sinergi Vol 19, No 2 (2021): Oktober 2021
Publisher : Politeknik Negeri Ujung Pandang

Green Nurhidayat Romang Polong Residence is a new housing located Samata’s axis road. In the housing development process, an electrical system is something important to supply electrical power in the housing. The distribution of electricity cannot be separated from the distribution substations. This research was conducted to design distribution substations. This research aims to determine the equipment and determine the capacity of each equipment. This research begins with observation, collects the data and data analysis. Data was collected through document study, observation and interview methods. Based on the results of research, distribution substations on Green Nurhidayat Romang Polong Residence used portal type substation with a transformer with a capacity of 400 kVA. The safeguards used are Lightning Arrester has a capacity of 24 kV, 5 kA, Fuse Cut Out with safety capacity of 12.5 A, the conductor area used to connect the Transformer to low voltage panel is a NYY type cable with a cross-sectional area of 4 (1 x 400 mm2 ), the conductor on the primary side that connects low voltage grid to Ligtning Arrester and Lightning Arrester to a transformer is AAAC type cable with a cross-sectional area of 35 mm2, while on the low-voltage grid, NFA2X type cable with a cross-sectional area of 3x70 mm is used. Low voltage panel divided into line, circuit breaker with a safety capacity of 700 A, NH Fuse with a capacity of 224 A and a rod electrode with a length of 5 m on the grounding system.

Analisis Pengaruh Perubahan Beban Generator Terhadap Efsiensi Kinerja PLTU Bosowa Energi Jeneponto Unit 2 Andreas Pangkung; Herman Nawir; Aditya Nugraha Adji Santoso
Jurnal Teknik Mesin Sinergi Vol 18, No 2 (2020): Oktober 2020
Publisher : Politeknik Negeri Ujung Pandang

This study aims to determine the effect of changes in generator load on efficiency performance in steam power plants and to determine the amount of input power in the boiler. Data collection was carried out at PT. Bosowa Energi PLTU Jeneponto. The data are the power output, fuel consumption, and the calorific value of the fuel. Then perform data analysis by calculating input power and efficiency. From the result of the study, the highest efficiency is on May 20, 2018 at 18.00 with a load of 90.00 MW, namely 55.68% and the lowest efficiency is on May 12, 2018 at 03.00 with a load of 64.98 MW, namely 22.69%. The highest boiler input power based on the analysis results was on May 3, 2018 at 20.00, namely 356.61 MW, and the lowest boiler input power based on the analysis was on May 15, 2018 at 07.00, namely 128.14 MW.

Evaluasi Pengaruh Tegangan Kerja Generator terhadap Kualitas Tegangan Jaringan pada PT.PLN (Persero) Area Luwuk Herman Nawir; Muhammad Yusuf Yunus; Ibnu Amir
Jurnal Teknik Mesin Sinergi Vol 19, No 2 (2021): Oktober 2021
Publisher : Politeknik Negeri Ujung Pandang

One of the service quality parameters is that the voltage supplied to consumers is always at the set value, which is 20 kV for medium voltage and 380/220 Volt for low voltage, many factors can affect the magnitude of the voltage starting when the voltage is generated by the generator, the process distribution to consumers by using a conductor and the amount of load that is on the feeder. This study aims to determine how much influence the generator output voltage has on changes in voltage in the medium voltage network and how much voltage drop occurs at the JTM until it reaches the consumer. The results show that the generator output voltage will affect the base voltage, the greater the generator output voltage, the greater the base voltage and operating voltage of the system. The voltage drop along the industrial feeder before the generator voltage is increased is 281,856 Volts or if it is used as a percentage of 1.441% but when the generator output voltage is increased the voltage drop in the industrial feeder decreases by 277.016 Volts or if it is used as a percentage of 1.392%.

Simulasi Pengaruh Variasi Konduktor Berkas Terhadap Gangguan Berisik Dan Radio Interferensi Pada Saluran Udara Tegangan Ekstra Tinggi 275kV Sonong Sonong; Herman Nawir; Fitrawati Suharti; Insan Kamil
Jurnal Teknik Mesin Sinergi Vol 17, No 2 (2019): Oktober 2019
Publisher : Politeknik Negeri Ujung Pandang

The use of extra-high voltage lines can increase efficiency and reduce voltage drop but cause corona generation. Corona that occurs increases channeling losses and causes disruption to the environment in the form of Audible Noise (AN) and Radio Interference (RI). Audible Noise (AN) and Radio Interference (RI) that are too large will disturb the community around the transmission line. The use of a bundle conductor is a way to reduce the risk of corona. This paper discusses the effect of variations in the bundle conductor on noise interference and radio interference in 275kV extra-high-voltage air lines (SUTET). The types of variations include variations in the number of beams, variations in the distance between sub-conductors, and variations in diameter of the conductor. Next, the Audible Noise (AN) and Radio interference (RI) values are calculated for the Latuppa (Palopo) - Pomana channel planning. The results of the calculation of AN and RI values on SUTET 275kV are still included as safe criteria because the value is still below the criteria limits of Perry and SPLN 46-1-1981 concerning the Noise Level Limitation Guidelines and the IEEE Radio Noise Design Guide about the maximum limit of RI.

Co-Authors Aditya Nugraha Adji Santoso Andreas Pangkung Fitrawati Suharti Ibnu Amir Insan Kamil Marhatang Marhatang Muh. Yusril Hamma Muhammad Ruswandi Djalal Muhammad Yusuf Yunus Sonong Sonong

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