Answer Posted / sagar suryawanshi
ONAN stands for oil natural air natural it is a cooling system used for transformer below 30 mva.Hydrocarban minaral oil is used for cooling purpose.
ONAN
ONAF
OFAN
OFAF This 4 colling systems is used .
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
why servomotor motor? where i apply for best output?
Can an inverter be used as a converter? How?
what is inverter and converter
Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803
armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?
Can clean earth cable be considered as low current cable
In siemens PLC, why do we want to move the data ?
Some times to change of DOR of a motor, interchange of R & B is not effected and RYB take same current, but interchange of R&Y is effected ie change the DOR. My doubt is what is the problem in motor and how it is happen.
What is the need of generator relay panel
what is transient stability analysis means?
In the magnetic fluxes, what is the role of armature reaction?
what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/
Classify driling machines.
Define the overload capacity of the motor?
Zone of protection and tripping scheme of arc protection relay.
