TY  - GEN
CY  - UNIVERSITAS LAMPUNG
ID  - eprints56593
UR  - http://digilib.unila.ac.id/56593/
A1  - I Made Bayu Wirawan , 1415031062
Y1  - 2019/05/16/
N2  - MO (Mineral oils) berfungsi sebagai bahan dielektrik dan pendingin pada
transformator tenaga. Minyak mineral berasal dari hasil tambang dan tidak dapat
diperbaharui. Bahan isolasi alternatif JMEO yang berasal dari biji jarak pagar mulai
dikembangkan. Penelitian ini mencakup studi mengenai sifat fisik dari JMEO dan
MO dengan pamanasan paksa selama 38 hari bersama isolasi kertas. Pemanasan
paksa 120 0C ± 10% dilakukan agar waktu pemburukan menjadi lebih cepat. Uji
viskositas mengacu pada standar ASTM-D444, acidity number ASTM-D974,
FTIR, perubahan warna dan uji tensile strength ASTM-E8/EM8. Hasil uji nilai
viskositas MO relatif stabil 9,2-12 mm2
/cSt dan JMEO mengalami perubahan yang
signifikan dari 12,9-34,8 mm2
/cSt. Nilai acidity number pada sampel 18 hari yaitu
JMEO 2,26 mg KOH/g, MO 0,30 mg KOH/g dan sampel 38 hari yaitu JMEO 3,41
mg KOH/g, MO 0,57 mg KOH/g. Sementara nilai acidity number sebelum
pemanasan yaitu JMEO 0,07 mg KOH/g dan MO 0,01 mg KOH/g. Spektrum FTIR
JMEO dan MO memiliki kemiripan namun pada JMEO muncul variasi ikatan C=0
(trigliserida/ester) sementara MO terdapat variasi ikatan N-H. Isolasi kertas
terendam MO memiliki warna yang lebih gelap jika dibandingkan dengan terendam
JMEO dan tidak terendam. Nilai tensile strength terendam JMEO 38,143 MPa, MO
21,961 MPa dan tidak terendam 44,243 MPa.
Kata kunci: Viskositas, Bilangan Asam, FTIR, perubahan warna isolasi kertas,
Tensile Strength, JMEO, MO


MO (mineral oils) used as the dielectric and coolant in power transformers for ten
decades. Mineral oils derived from mining and they are non-renewable. On the
other hand, JMEO alternative insulation materials derived from the seeds of
Jatropha. This research covers the study of the physical properties of JMEO + paper
insulation and MO + paper insulation with forced heating for 38 days. Forced
heating of 120 0C ± 10% is done so that the deterioration time becomes faster.
Viscosity test refers to the standard ASTM-D444, acidity number ASTM-D974,
FTIR, discoloration and tensile strength test ASTM-E8/EM8. The test results show
that the average viscosity values of MO are relatively stable at 9.2-12 mm2
/cSt
while the viscosity of JMEO increases significantly from 12.9 mm2
/cSt to 34.8
mm2
/cSt. The acidity number of JMEO and MO in the 18-day of forced heating are
2.26 mg KOH/g and 0.30 mg KOH/g respectively. These acidity numbers increase
to 3.41 mg KOH/g and 0.57 mg KOH/g for JMEO and MO repectively in 38 days
of forced heating. While before heating, the acidity number of JMEO and MO are
0.07 mg KOH/g and 0.01 mg KOH/g. The FTIR spectrum of JMEO and MO are
similar but in the spectrum of JMEO appears C=0 (triglyceride/ester) bond, while
in that of MO appears N-H bond. Paper insulation submerged in MO has a darker
color than in JMEO which is similar with the new paper insulation. The tensile
strength of paper insulation submerged in JMEO and MO are 38,143 MPa and
21,961 MPa respectively, while the tensile strength of new paper insulation is
44,243 MPa.
Keywords: Viskosity, Acid Number, FTIR, descoloration paper, Tensile Strangth,
JMEO, MO, Paper Insulation 
PB  - Fakultas Teknik
TI  - ANALISIS SIFAT FISIK JMEO (JATROPHA METHYL ESTER OIL) DAN
MO (MINERAL OIL) DENGAN PEMANASAN PAKSA SERTA
PENGARUHNYA TERHADAP ISOLASI KERTAS 
AV  - restricted
ER  -