What will be the change in its efficiency and other
parameters of a ONAN transformer if it changed to ONAF
transformer ?

Answer Posted / shariff

The cooling capacity will be increased in the transformer,
by which the trf can be loaded to its rated capacity and
the efficency of the trf is also max under its rated
capacity. Other parameters will not change.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing

2170


How many devices can be connected in one zone of FACP

1793


how you configure motorvision relay (L&T make)from DCS

4322


why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?

1617


Define ampere

709






How does a digital electronic meter work??????

1604


why does make gain margin and phase margin on same plot.?

1637


What is meant by Low Resistance Cable and High Resistance Cable.

1426


Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

1745


I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

1740


In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.

1845


i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

1725


Which types of gate insttaled in static switch. Please give me answer.

1175


What is the de rating factor of cable? What is the importance of the de rating factor in cable select

1883


what is the difference b/w pvc cu conductor and cu breaded wire..?

2883