Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / pillay
Answers #1 & #2 is correct but i can add something for the the benefit of some.
In ONAN the oil in the TX former circulates on its own due to hot oil goes up & cooler oil goes down.The TX former is cooled by just the air around it.
In ONAF the oil circulates as above but a fan is used to cool it.
In OFAF the oil is pumped with a pump for circulation and the air is cooled by a fan.
In DYN the primary winding of the tx former is wound in delta and the secondary is wound in star with tapping for neutral connection.
| Is This Answer Correct ? | 10 Yes | 0 No |
Post New Answer View All Answers
What is the limitation of kirchoffs law?
What is dc current source? Differentiate between ideal and non ideal current sources?
how is capacitor bank look like
Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.
11000volt DG set carnt kaise banvay
what is the criteria for selection of conductor used for ehv ac electrical dischrge
What is shutdown of electrical sub station?
how to design the heater in temperature control unit to heat 50KL of water?
How many types of losses occur in a transformer?
what is p.s impedance measurement test in earthing transformer?
What is the power factor of an alternator at no load?
hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds
lenz law application and define
what is class of SPD and dittels of all class ?
WHAT IS counter flux IN CT?
