Transformer oil is one of the many products
available at your preferred industrial lubricants providers. Such oil is capable
of adding dielectric strength to the transformer, and expedite heat transfer
while providing ample insulation. Still, they are also vulnerable to decay over
time, and you need testing kits to ensure they’re at peak form. You can
identify the faults common to oiled transformers.
Arcs
Arcing is possible during high current, high
temperature conditions wherein the generation process also triggers deposits of
hydrogen, acetylene, methane, and ethylene. The presence of cellulose can
partly result in carbonized oil.
Low or High
Coronas are low-energy discharges that primarily
create hydrogen and methane. On the other hand, a buildup of electrical
flashovers without high current are called sparking, which create methane and
ethane.
Heating up
It is possible that leaks in the transformer casing
can compromise the generation process and increase the oil’s temperature. If
the oil suddenly climbs in temperature, beware that ethylene and methane will
be created at 300 degrees Fahrenheit while hydrogen and methane are produced at
1,112F. Overheated cellulose will generate large amounts of carbon dioxide and
monoxide. Acetylene may be released if there’s a serious defect in the machine
or there was presence of electrical contact.
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