How can transformer oil be used in transformers with voltage
rating above its breakdown voltage?
Answer Posted / 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 View All Answers
Different types of relay fault which phase sequence??
What is the normal phase difference between the voltage and the no-load current in a transformer?
What is the source of dependent source ?
If UG power cable both ends are to be earthed or what? If not why?
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
what is the voltage rating of chiller unit sensors
Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?
in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.
How to measure size of cable on a given load
Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??
What is reactance, reluctance,capistance, pls give answeer in hinglish and be simply Jo asani we smajh m aa jaye
Define characteristics impedance?
How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.
What is Scheme Test of High Voltage Switchgear. Which tests it includes.
What do you mean by an instrument transformer?