Quiz OPGI Eps 2
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebutkan nama dan fungsi komponen tersebut ?
Konservator
berfungsi sebagai media isolasi dalam maintank trafo
Bushing
Berfungsi sebagai media hantar arus dalam maintank Trafo
Bushing
sebagai penghubung belitan trafo dan konduktor luar
Radiator
Sebagai media pendingin trafo
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa nama peralatan berikut dan fungsi nya ?
Radiator
Sebagai media pendingin Maintank Trafo
Konservator
Media penampung minyak trafo saat terjadi kenaikan suhu
OLTC
Mengontrol perubahan tegangan sistem 20 kV melalui perubahan tap
NGR
Membatas arus gangguan tanah yang terjadi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apabila tegangan sisi sekunder Trafo melebihi 20 kV (nominal), maka Tap Changer akan dioperasikan ?
Naik
Turun
Tidak perlu dioperasikan
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Neutral Grounding Resistor merupakan salah satu komponen utama Peralatan Trafo dan berfungsi untuk membatasi arus gangguan tanah.
Berapa nominal resistansi NGR dan nominal arus nya ?
80 ohm
288 Ampere
40 ohm
150 Ampere
40 Ohm
288 Ampere
80 Ohm
150 Ampere
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut merupakan proteksi mekanik Peralatan Trafo.
OTI, WTI, Jansen, SBEF
Bucholz, Sudden Press Maintank, Ref HV, Ref LV
Bucholz, Jansen, OTI, WTI
Differential, Ref HV, Ref LV, SBEF
6.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Berapakah Daya Trafo (MVA) terukur saat terdapat beban 100 A di sisi 150 kV ?
Rumus = ∛ x Vphs-phs x Ibeban
28.59 MVA
23.5 MVA
25.98 MVA
27.59 MVA
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Relay Jansen : berfungsi memproteksi aliran gelembung akibat suhu yang sangat tinggi dari kompartemen maintank trafo ke konservator
Relay Bucholz : berfungsi memproteksi aliran gelembung akibat suhu yang sangat tinggi dari kompartemen OLTC ke konservator
BENAR
SALAH
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