Which type of Oil is used in transformers, & what is its strength?
Answer / shridhar awasthi
The oil is used is mineral oil,synthetic oil(Chlorinated diphenyl/askarel) and silicon oil.The synthetic oil is used to reduse the risk of fire.it is heavier than water,non-oxidising and has higher dielectric strength than mineral oil.the synthetic oil contains PCB (polychlorinated benzyne)which is hazardous for human being and handling of this oil require great precaution,which is why this oil is banned in many countries.
Silicon oil offers nearly all the advantage of synthetic oil and does not contain PCB also but ten times cost than mineral oil.
Silicon oil is an option where the fire is also a criterion.
Mineral oil in good condition appears clear and transparent.
It degrades faster due to oxidation,so anti oxidant called inhibitors are mixed with the oil to prolong it's life.
Dielectric strength of treated oil should be 50KV
Is This Answer Correct ? | 3 Yes | 3 No |
CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND TAKING OUTPUT FROM PRIMARY?
Why have to use copper cable for local isolator to motor ?
why impudance relay used for medium transmission power system? why not others?
what is significance of B-H curve? how it differs form ordinary transformers to Amorphous Transformer?
Which is is best option for 33 kv line incomer.I am Desinging the panel for new projects and i would like to get Your opinion on this Vcb or sf6. Please help me with your replies. Thanks D p singh
why Batteries & Battery chargers are used in substation? what is the different between UPS & battery charger?
if the length, number of turns and area of coil are doubled then inductance of the coil becomes.?
what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?
how many load we can take for lighting
how much insultion resistance 11kv cable.
how the diesel generator maintain the rpm when the generator loaded varies from 10% to 70% immediately?
A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is