Answer / suneel

napthaenic oil

Answer / v.srinivas

In 1970s polychlorinated biphenyls(PCB) Is used.But this is in toxicity, so (PCB) is banned in many countries. Today we are using non-toxic,stable silicon based OR flouridated hydrocarbons are used,so pentaerythritol tetra fatty acid(C7, C8) Esters are also becoming increasingly common as alternatives to Naphthenic mineral oil.

Answer / ambuj kumar

Transformer oil is basically a fresh dielectric oil and we call it transformer oil only.The qualities that it should posses are as follows
1. High dielectric strength. around 30kv/cm.
2. High flash and pour point.
3. It should not form toxic substances at high temprature.
4. It should have good insulation and cooling properties.

Answer / shibnath paul

polychlorinated Biphynile synthetic oil

Answer / imam hossain

silicon based mineral oil that can provide proper cooling,
insulation, no formation sludge and high flash point.

Answer / hitesh nandanwar

use of insulating oil in x-mer
because then properly and
directly cooling of x-mer and
ignition low tempreture .

Answer / manikandan.e

Hydro carbon mineral oil.

Answer / abdulquddus

dia cloro dia floro tetra ethyal benzine

Answer / ramesh patel

mainly napthenic oil, polychlorinated biphenyls (PCBs) and mostly all are the part of a hydrocarbon oil.

Answer / raghav

Hydrotreated Light Nepthanic Distillate

Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?

0 Answers  

Why TAP changer provided in primary side of HT transformer ? and why not in secondary?

9 Answers   ABB, Reliance,

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0 Answers  

Why in ESP Positive earthed

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In UPS what does 600va reffer to?

4 Answers  

What is the two pole structure?

0 Answers   Foxconn,

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0 Answers  

Why we are testing a tan delta test in transformer? which purpose conduting that test? and time priode test?

1 Answers  

What is the difference between Class PX & Class X CT's

2 Answers   ABB,

what is softstarter? explain briefly where it is used?

2 Answers   Essar,

what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

0 Answers   ME,

what is vector diagram in three phase transformer

1 Answers