High
Voltage Transformer oil is suitable for 500KV super HV transformer, it can also
as insulation and cooling medium in electric power equipments. When we test
transformer oil, SH 0040-91 used in the detection of oil industry
standards. Test project for the
appearance, color, density (20 degrees Celsius), kinematic viscosity and
aniline point, freezing point, pour point, flash point, neutralization value,
water soluble acids or alkalis, corrosive sulfur, oxidation stability
(precipitation, acid), breakdown voltage and dielectric loss factor (90
degrees), Interfacial tension, trace moisture, gassing, dispersion, and so on.
Particular
attentions are:
1.
While observing the appearance of oil, oil injection should be 100ML in the
graduated cylinder, at 20 ℃ ± 5 ℃ environment Visual, If you look the results
disputed, as specified by the GB/T 511
standards for determination of oil content of mechanical impurities.
2.
.Oxidation stability, gassing to super high voltage transformer oil project,
you should testing at least once a year.
3.
When Determination of EHV transformer oil Breakdown voltage and determining the
pour point and freezing point, you can
use qualitative filter paper filtration..
In
the process of oil use, If there is a detection target does not meet SH 0040-91
industry-standard requirements,
you
should replace with new oil in time, or use a private transformer oil filtration
machine to purify the super HV transformer oil.
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