ANALYSIS SYSTEM PENTANAHAN grid Rod depot HOME HIGH Voltage 150 KV USING THE PROGRAM MS VISUAL BASIC

University of Lampung

HENRY BH SITORUS (*), HERMAN H. HENRY Sitorus BH (*), HERMAN H. SINAGA (*), Sinaga (*),
HENDRI ALBERT NOPAER SIMANJUNTAK (**) Albert Hendri NOPAER Simanjuntak (**)
(*) Jurusan Teknik Elektro FT Unila (*) Department of Electrical Engineering FT UNILA
(**) Alumni Jurusan Teknik Elektro FT Unila (**) Department of Electrical Engineering Alumni FT UNILA
E-Mail: hbh_sitorus@unila.ac.id, HP: 081369031080 E-Mail: hbh_sitorus@unila.ac.id, HP: 081369031080

ABSTRACT Abstract
Phase to ground fault on 150 kV high voltage subtation will caused current fault flows from apparatus part to grounding Phase to ground fault on 150 kV high voltage is caused subtation fault current flows from apparatus part to grounding
terminal. terminal. This will caused dangerous voltage gradien for human safety around that substation area. This will Find voltage caused dangerous for human safety around that area substation. To prevent this problem To prevent this problem
its needed an excellent grounding system. it needed an excellent grounding system. The main issue on this research is how to resolve the good grounding system, The main issue on this research is how to resolve the good grounding system,
which has resistance, step voltage and mesh voltage that match to IEEE/ANSI Std 80-1986 standard. which has resistance, voltage and step voltage mesh that match to IEEE / ANSI Std 80-1986 standard. The result shown for The result shown for
gravel soil the deeper the conductor burried the larger ground resistance and mesh voltage and for step voltage its smaller. Gravel soil the deeper the conductor burried the larger mesh ground resistance and voltage and voltage step for its smaller.
But for farming and wet sand soil ground resistance, mesh voltage and step voltage will smaller. But for farming, and wet sand soil ground resistance, mesh and step voltage voltage is smaller. The larger the grounding The larger the grounding
area and number of mesh , the smaller grounding resistance, mesh voltage and step voltage. area and number of mesh, the smaller grounding resistance, mesh and step voltage voltage.

Key Words: Grounding resistance, mesh voltage, step voltage Key Words: Grounding resistance, mesh voltage, step voltage
http://lemlit.unila.ac.id http://lemlit.unila.ac.id

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ANALISIS SISTEM PENTANAHAN GRID ROD GARDU INDUK TEGANGAN TINGGI 150 KV DENGAN MENGGUNAKAN PROGRAM MS VISUAL BASIC

Universitas Lampung

HENRY B.H. SITORUS (*), HERMAN H. SINAGA (*),
HENDRI ALBERT NOPAER SIMANJUNTAK (**)
(*) Jurusan Teknik Elektro FT Unila
(**) Alumni Jurusan Teknik Elektro FT Unila
E-Mail: hbh_sitorus@unila.ac.id, HP: 081369031080

ABSTRACT
Phase to ground fault on 150 kV high voltage subtation will caused current fault flows from apparatus part to grounding
terminal. This will caused dangerous voltage gradien for human safety around that substation area. To prevent this problem
its needed an excellent grounding system. The main issue on this research is how to resolve the good grounding system,
which has resistance, step voltage and mesh voltage that match to IEEE/ANSI Std 80-1986 standard. The result shown for
gravel soil the deeper the conductor burried the larger ground resistance and mesh voltage and for step voltage its smaller.
But for farming and wet sand soil ground resistance, mesh voltage and step voltage will smaller. The larger the grounding
area and number of mesh , the smaller grounding resistance, mesh voltage and step voltage.

Key Words: Grounding resistance, mesh voltage, step voltage
http://lemlit.unila.ac.id