Shell Diala Oil G

Shell Diala Oil G
Gasabsorbing non-inhibited insulating oil
Properties
Shell Diala Oil G is a specially refined naphthenic mineral oil with high oxidation stability, good
electrical properties, excellent low temperature properties and is gasabsorbing under conditions of
electrical stress.

Phân phối dầu cách điện dành cho máy biến áp, máy biến thế cao cấp
Application
Shell Diala Oil G is preferably used in electric equipment with high field strengths. It retains its
high oxidation stability and long service life also at high thermal loads. Its main use is in
transformers of high to extreme voltage ratings as well as in instrument transformers and
capacitors.
Typical Data
Shell Diala Oil G meets the following specifications:
- DIN 57370-1 / VDE 0370 Part 1, Class A
- IEC 296, Class II
 Requirements of
DIN 57370-1/VDE 0370
Part 1 Class A
Shell Diala Oil G
Appearance DIN 57370 clear, free of solids complies
Density at 15°C
 at 20°C
kg/m³
kg/m³
DIN 51757
DIN 51757
<898
<895
887
884
Kinematic viscosity
 at 20°C
 at -30°C
mm²/s
mm²/s
DIN 51562-1
<25
<1800
19
1080
Flash point P.M. °C DIN EN 22719 ≥130 136
Neutralisation value mg KOH/g DIN 51558-2 <0,03 <0,03
Corrosive sulphur DIN 51353 non-corrosive non-corrosive
Breakdown voltage
(after treatment)
kV DIN EN 60156 >50 >60
Dielectric dissipation factor at 90°C
(after treatment)
DIN 57370 <0,005 0,001
Oxidation stability
Baader (140 h/110°C)
 Saponification value
 Sludge content
 Dielectric dissipation factor at 90°C
mg KOH/g
%m
DIN 51554
<0,60
<0,05
<0,18
0,2
0,02
0,01
Oxidation stability (164 h/100°C)
 Neutralisation value
 Sludge content
mg KOH/g
%m
IEC 1125 A
<0,30
<0,06
<0,03
0,04
Gassing tendency mm³/min IEC 628 A - -10