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All Journal Jurnal SPEKTRUM
I G.B. Satcitananda P
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Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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ANALISIS PENGARUH NILAI TAHANAN PEMBUMIAN TITIK NETRAL TRANSFORMATOR TERHADAP PERUBAHAN THD ARUS DAN RUGI-RUGI DAYA DI RSUD KLUNGKUNG I G.B. Satcitananda P; I W. Rinas; I G.N. Janardana
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.769 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i01.p27

Abstract

Harmonics causes an increase in the current flowing in the neutral wire due to the use of unbalanced non-linear loads. THDisimulation was conducted in this study using MATLAB Simulink software and calculating power losses. Based on themeasurement results it is known that THDi transformer one exceeds the standards set by IEEE 519-2014. THDi simulationresults in the existing conditions show the percentage of phase R of 17.27%, S phase of 16.40%, phase T of 16.24% with acurrent flowing on a neutral wire of 19.64 A. Based on the results of simulations with earth resistance 11? shows thepercentage of THDi in the R phase 15.69%, S phase 14.70%, T phase 9.83% and the current flowing on the neutral wire is1.013 A. When the earth resistance is changed to 8? THDi in the R phase by 15.62%, the phase S 14.67%, T phase 9.81% withcurrent flowing on neutral wire 1,297 A. While the earth resistance is reduced to 4? THIn the R phase 13.57%, S phase 14.51%,T phase 9.80% and the current flowing on the neutral wire is 2,518 A. The power losses in the one-time transformer when theexisting conditions are 8,796 kW, while the earth resistance 11? is 6,079 kW, while the ground resistance 8? is 6,032 kW, andwhen 4? is 5,880 kW.
Co-Authors I W. Rinas l Gusti Ngurah Janardana