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

How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?

0 Answers   Elektrotek,

why ten delta testing is carried out on power transformer

0 Answers  

What is mean by earthed & unearthed cable? Voltage grade of 1.9/3.3 kV(E), 3.3/3.3 kV(UE), 3.8/6.6 kV(E)what it indicates??

2 Answers  

What is power transformer?

3 Answers   Welspun,

why pull the single core cable?

1 Answers  

what is mean by descripiency relay? & wht is its ansi code?

0 Answers  

What is an isolation transformer?Why do we need isolate circuits?Where do we use them?

2 Answers  

What is the types of HT motor testing

0 Answers   ABB,

How to calculate PF capactors for a connected load?

2 Answers   FD, Power World,

what is the difference between ups & inverter

4 Answers   Cushman Wakefield, Dana Group,

What will be result if we connect LT votage to the terminal of HT motor?

0 Answers   Equate,

What is gross error?

0 Answers