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

why causes the burnt of AC Electrical Motor ?

9 Answers  


what type of earthing do for dry fissure rock?

0 Answers  


what is the capacity of storing mass electricity.

1 Answers  


if our load in 3 phase circuit is 4000 amp. calculate the capacity of capacitor panel if line power factor is.80 .

1 Answers   ST Micro,


how to calculate the MF in meter reading

2 Answers  






for compensate 315mh inductance ,how many capaciance required?

1 Answers   Mitsubishi,


the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)?

0 Answers  


if two transformers are parallel & both have fault short ckt. impedance of 50KA in each case will it increase or decrease show example?

1 Answers  


difference between relay and solenoid?

2 Answers  


Can a generator rated 400 V, 60 Hz be used in a 50 Hz System? Yes or No ? Why ?

1 Answers   VECL,


How to know the Max. current caring capacity of the cable by its size ?

0 Answers   SFPL,


Graphs of measuring power and speed on dc motor

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • 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)