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when power transformer is flashed which gas is produce in
side?
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Answer Posted / abbeer
Each of the fault result in thermal degradation of the oil
either alone or in combination with paper insulation. This
gives rise to the evaluation of various hydrocarbon gases,
hydrogen and oxides of carbon, in quantities depending on
the type of fault.
Heavy current arcing is characterized by the evolution of
significant quantities of hydrogen and acetylene (C2H2). If
the arcing also involves paper insulation, the oxide of
carbon will also be present.
Partial discharge usually results in evolution of hydrogen
and lower order hydrocarbons.
Localized heating or hot spot gives rise to methane and
ethane in appreciable amount.
Prolonged overloading or impaired heat transfer can cause
CO and CO2 to be generated due overheating paper
insulation.
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