Answer / jadhav padmakar

DGA Means Dissolved Gas Analysis. While in service
Transformer undergoes various termal,chemical,electrical
stresses due to that some gases generated these gases known
as Fault gases which r quantitified in extremely low level
in Parts Per Million (PPM), the test which is conducted to
analyse these fault gases known as DGA Test.

Answer / pundlik wanwe

Transformer oil is a mineral oil. It is either parafinic
based or napthaline based. Oil contains the hydrocarbons.
When the oil get heted depending upon the temperature rise
oil gets decomposed and gassed begins to evolve.
To analise the composition of the evolved gasses the method
used is called Dissloved Gas Analysis.
Evolved gasses involves Hydrogen, Carbon monoxide, carbon
dixoide, methane, ethane, ethelyene, acetylene etc.
The samples oil is used to pass through the gas
chromatography where as per the temerature rise gasses
evolved can be seen as a spectrum band.
This method is a nice tool to judge the condition of oil in
transformer subsequentely that of transforrmer winding
insulation.

Answer / anil kumar

DGA Means Dissolved Gas Analysis. While in service
Transformer undergoes various termal,chemical,electrical
stresses due to that some gases generated these gases known
as Fault gases which r quantitified in extremely low level
in Parts Per Million (PPM), the test which is conducted to
analyse these fault gases known as DGA Test.

i want to do a project on PLC.... please give me an idea.....

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