How can transformer oil be used in transformers with voltage
rating above its breakdown voltage?

Answers were Sorted based on User's Feedback



How can transformer oil be used in transformers with voltage rating above its breakdown voltage?..

Answer / durga rao .n

in transformers oil be used for insulation purpose between
core and body, reducing winding temperatures. main thing
protecting for the transformer from un-balanced loads,
internal short circuits and winding temperatures. it's should
be have minimum break down voltage is 50KV.

Is This Answer Correct ?    4 Yes 2 No

How can transformer oil be used in transformers with voltage rating above its breakdown voltage?..

Answer / sanjay

Mineral Insulating oil in transformer is basically used as a
medium to transfer heat generated in winding to radiators.
The oil gets heated up when it comes in contact with winding
and gets cooled down when it passes thru radiators. This
constant cycle keeps the transformer oil temperature within
limits. As the oil is in constant contact with windings and
other live parts it should have good insulation level.
The break down voltage of transformer oil is the voltage at
which oil insulation breaks down when voltage is applied
between two electrodes spaced at 2.5 mm. distance.
But as the clearances between live parts maintained is much
more the oil can have lower BDV than voltage rating of
transformer.

Is This Answer Correct ?    2 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

1.why ACB is not connected in HT side what Happens? 2.how much voltage maintained in ACB breaker? 3.OLTC is connected in primary side in case secondary side connected what happened?

3 Answers   L&T,


What are the consequences in using existing step up transformer (primary 6.6kv/175A, secondary 480v/2405A) for step down transformer to have a 6.6kv output?

1 Answers  


corona happens more in ac or dc?

5 Answers   MAHINDRA,


How to know of any cable size if there are not written on cabl?

0 Answers   APGenco, El Seif,


How many types of DC current

2 Answers  






What are the special protection given for high capacity Motor, more then 10mw

2 Answers  


why capacitor bank is not used in generator power

7 Answers   Caterpillar,


what is the generation action and motoring action?

3 Answers  


why any centrifugal blower draw more current in starting. consider id fan and fd fan?

0 Answers  


which protection are used for turbo generator in thermal power plant.

1 Answers   Grasim,


On PVC conduit the class "A" "B" or "C" is marked what does it shows. Either its thickness or its composition?

2 Answers  


a governer in an Ic engine controls the

0 Answers   Caterpillar,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)