Analisis Spasial Kejadian Petir Di Kota Bogor Tahun 2017 Dan Korelasinya Dengan Iklim Musim Serta Curah Hujan

Masruri, M. Fakhrul Islam; Rahman, Aditya

doi:10.24895/sng.2018.3-0.996

Cited by 3 publications

(1 citation statement)

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“…The results showed that South Bogor Subdistrict was the most vulnerable area for lightning. Then the highest incidence of lightning in the transition season and there has not been found a positive correlation between the incidence of lightning with rainfall [11].…”

Section: Introductionmentioning

confidence: 92%

Evaluation of Cloud to Ground Flash Density of 150 Kv Transmission Line Between Parit Baru Substation and Senggiring Substatio

Manalu,

Danial,

Rajagukguk

2024

TELECTRICAL

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SUTT is a high voltage overhead line with a power of 70 kV - 150 kV to distribute electric power from the generating center to the substation or from substation to substation. The purpose of this study was to obtain modeling of lightning strike density on the 150 kV transmission line between Parit Baru substation and Senggiring substation using geostatistical approaches, namely IDW methods (Inverse Distance Weighted). In identifying the level of vulnerability to lightning strikes, Cloud to Ground lightning event data (2018–2020) is used. The aim of this research is to obtain the density pattern of lightning strikes on the 150 kV transmission line between the Parit Baru substation and the Senggiring substation. The process in ArcGIS 10.8 software aims to obtain lightning strike density and display the results of the lightning strike density map. Based on the results of data processing for 3 years, the highest density of lightning strikes occurred in 2019 in Segedong District at 54.52 strikes/km². Meanwhile, the lowest density of lightning strikes occurred in 2018 in East Mempawah District, amounting to 2.86 strikes/km². Based on the lightning strike density map per grid on the 150 kV transmission line between Parit Baru substation and Senggiring substation for 3 years, the results obtained for the highest lightning strike were 36 strikes/km² while for the lowest strike it was 1 strike/km². From this research, it was found that there were 15 transmission towers that passed a high density of lightning strikes with a strike range of 25–36 strikes/km² and the highest lightning strike occurred at tower number 31, number 30, and number 29, amounted to 36 strikes/km².

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Section: Introductionmentioning

confidence: 92%

Evaluation of Cloud to Ground Flash Density of 150 Kv Transmission Line Between Parit Baru Substation and Senggiring Substatio

Manalu,

Danial,

Rajagukguk

2024

TELECTRICAL

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Analysis of lightning disturbance at 150 kV high voltage power lines

Alfita

Ibadillah

Nahari

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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The power transmission line channels electrical energy from power plants to consumers through diverse natural conditions. East Java is an area with a unique topography, where clouds causing rain and lightning are frequently formed. Such clouds strongly interfere with the 500 kV Extra High Voltage Line (SUTET), causing a lightning strikes. Therefore, the lightning strikes along the channel needed to be analyzed. The random method used in this research measured the lightning safety at the tower, within a quarter of the distance from the tower and half the distance from the tower (Lightning disturbance due to back flashover) Based on the calculation, the highest number of disturbances in the phase wire per 100 km2 of conductor per year has obtained and (SFO) was 1.073399.10-3. while tower impedance has found at 273.6219 Ohms.

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Status Nutrisi Mineral Rusa Totol (Axis axis) di Lingkungan Istana Kepresidenan Bogor

Andini

Suryahadi

Suharti

2022

J. Ilmu. Pertan. Indones.

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The study aimed to determine the effect of mineral status (Ca, P, Fe, Mn, Zn, Cu, and Pb) in soil, grass, and hair of spotted deer in the Bogor Presidential Palace. Fifteen male deer were randomly selected with an age of ± 2.5‒6 years. Soil was collected from ten points representing land, and grass samples were obtained by sampling from several points of the grazing area. Mineral content in soil, grass, and deer hair were analyzed using the atomic absorption spectrophotometry. The results showed that the level of Ca (0.03%) and P (0.016%) in the soil are deficient, Mn (1960 ppm), Zn (33.89 ppm), and Cu (77.23 ppm) are considered in the normal range, and Fe and Pb elements are high. Mineral levels of Ca, P, Cu, and Zn in grasses do not meet the daily requirements, whilst high levels of Fe and Mn minerals exceed the requirements for the spotted deer. The Pb content in grass is 0.94 ppm, which is within the normal limit. The levels of Ca (0.02%), Fe (308.11 ppm). and Mn (6.18 ppm) minerals in deer hair are high, however, zinc (44.68 ppm) and Cu (3.08 ppm) levels are low. High Pb level (14.38 ppm) is due to the long-term impact of Pb accumulation. Keywords: Bogor Palace, mineral status, Axis axis

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Analisis Spasial Kejadian Petir Di Kota Bogor Tahun 2017 Dan Korelasinya Dengan Iklim Musim Serta Curah Hujan

Cited by 3 publications

References 0 publications

Evaluation of Cloud to Ground Flash Density of 150 Kv Transmission Line Between Parit Baru Substation and Senggiring Substatio

Evaluation of Cloud to Ground Flash Density of 150 Kv Transmission Line Between Parit Baru Substation and Senggiring Substatio

Analysis of lightning disturbance at 150 kV high voltage power lines

Status Nutrisi Mineral Rusa Totol (Axis axis) di Lingkungan Istana Kepresidenan Bogor

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