Answer Posted / 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.
Is This Answer Correct ? | 51 Yes | 4 No |
Post New Answer View All Answers
What are the classifications of oscillators?
how braking & making capacity of circuit breaker is calculated?
i am going to attaned the engineer (disign)iterview at HAL please give me duid line
i need previous entrence exam papers of nhpc.
In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???
some basic standard questions on transformer.
PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM
WHICH SIZE A.B.CABLE IS USED FOR 11KV.
how to apply b license to c license in tneb
How to address the servo drive for motor
Form S and "c" license application both are same? @ tneb portal
what is ramping rate of generator
what is saturation kit?which use above 15 kw motors panel side.
Merits & Demarits of Oil circuit & Air circuit breakers ?
why all the feeders are designed in a particular manner ... is there any reason for that???