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All Journal International Journal of Electrical, Energy and Power System Engineering (IJEEPSE)
Edy Ervianto
Universitas Riau, Indonesia
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy

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Redesign of Artificial Lighting with Electricity Saving Aspects Linwan Abadi Harefa; Feranita; Edy Ervianto
International Journal of Electrical, Energy and Power System Engineering Vol. 3 No. 1 (2020): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.721 KB) | DOI: 10.31258/ijeepse.3.1.24-29

Abstract

Redesign of artificial lighting with electricity saving aspects at the Putri Tujuh Ujung Batu Foundation aims to evaluate the design of artificial lighting systems in several rooms including the Inayah Islamic Elementary School Office, Putri Tujuh Orphanage Dormitory and Fastabiqul Khairat Mosque by calculating aspects of energy savings. Initial measurement results show that the lighting strength in each room does not meet the specified standards. The measurement results are evaluated using the zonal cavity method. It is recommended that the type of lamps used are 2 Philips LED 27 Watt lamps and 33 Philips LED 33 Watt lamps. Calculations with this method are simulated using the DiaLux Evo V.8.2 software which displays a three-dimensional image along with the strength of the lighting in each room. From the simulation results it was found that the use of pure white paint coated walls increases the lighting strength. The percentage of Electricity savings for Inayah Islamic Elementary School office space was 31.25%, Putri Tujuh Orphanage Dormitory was 61.64% and the Fastabiqul Khairat Mosque was 7.11% when compared to the use of Hannochs lamps.
Sag and Tension of 275 kV Transmission Line using Catenary Dicky Novriandi; Azriyenni Azhari Zakri; Edy Ervianto
International Journal of Electrical, Energy and Power System Engineering Vol. 2 No. 3 (2019): International Journal of Electrical, Energy and Power System Engineering (IJEEP
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.466 KB) | DOI: 10.31258/ijeepse.2.3.15-20

Abstract

This research will develop a catenary method to determine the sag and tension analysis on the 275 kV transmission line conductors. The catenary method is dependent on the equation of the weight of the conductor, the maximum tensile stress of the conducting wire, the length of the span, and the maximum sag of the conductor. The method will be used in determining the value of sag and tension with the design of the model using software AutoCAD. The results of research for the same tower sag height of 6.86 m, with a tension of 4610.83 kg and a conductor length of 401.06 m, while sag for the tower is not the same height of 8.14 m, with a tension of 4612.84 kg, and changes in conductor length 401.06 m. The increase in current causes the sag value to increase, when the minimum current sag value is 6.9828 m, and the maximum current sag value increases to 8.44 m. While the tension will decrease along so that temperature is increased the current minimum pressure of 4531.27kg, and at the time of maximum tension of 3749.728kg. Sag and tension are also affected by ambient temperature when the minimum temperature is 20 ℃ sags are 6.8621 m and when the maximum temperature is 40 ℃ sag increases to 7.793492 m. Tension will decrease with each increase in temperature when the minimum temperature is 20 ℃ tension 4610.538 kg when the maximum temperature is 40 ℃ the tension is reduced to 4062.345 kg.
Co-Authors Azriyenni Azhari Zakri Dicky Novriandi Feranita Feranita Linwan Abadi Harefa