Answer / student skill

Parrafinic or naptha

Answer / som

Transformer oil or insulating oil is usually a highly-refined mineral oil that is stable at high temperatures and has excellent electrical insulating properties. It is used in oil-filled transformers, some types of high voltage capacitors, fluorescent lamp ballasts, and some types of high voltage switches and circuit breakers. Its functions are to insulate, suppress corona and arcing, and to serve as a coolant.

Answer / sameer sehgal

Polychlorinated Diphenyl

Equal resistance of 100ohm each are connected to the arms of whestons bridge, which is supplied by 2v battery. The galvanometer can sense a current low as 1microAmp. What is the smallest resistance that can be measered.

1 Answers   GATE,

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Good morning: I'm looking for some informations about the OLTC or the LTC: I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operation Cordially

0 Answers   CMERI,

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What is the mmf,rgt and ngt please brief completely

0 Answers   cpgn,

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can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

3 Answers   GMR,

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What does the a,b,c of 95a,95b,95c relays denotes?

0 Answers   KSEB,

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The ratio of white balls and black balls is 1:2. If 9 gray balls is added it becomes 2:4:3. Then what is number of black balls ?

3 Answers   CTS,

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How the earth fault relay works please explain?????????

2 Answers  

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why is the power generator connected as star earthed or star earthed through reactance and what its features ?

0 Answers  

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purpose of breaker contact multiplication relay?

5 Answers   ABB,

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How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 Answers  

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with help of neat sketch explain principle of TIG welding process

0 Answers  

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Define magnetic centre in a motor?

1 Answers  

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