Answer / raven

it is placed in long cylinder which is internally connected
to transformer.This gel absorbs any moisture preset in
transformer,it changes its color/state indicating it is time
to replace the gel with a new one.There is no fan present
near silicon gel as far as i know.I visited loco shed of
railways where there are huge transformers.
Well i hope this is correct. :)

Answer / thowsif

Silicon gel is an good absorber of Moisture,their is no fan
in breather of the tansformer.

Answer / blake_australia

answer 1 is correce.
The air in a transformer expands as the transformer heats,
and contracts as it cools. This causes the air flow. This
expansion of gasses is the reason that the transformer is
open to air.

Some transformers have a bladder seperating the transformer
oil/air and the outside air, and dont need this silica gel.

Answer / pillay

BLAKE_AUS and THOWSIF ARE right so as raven but i just want
to add something to it.The silica gel is placed in the only
way air can get into or get out of the transformer so
whenever there is some movement of air it passes through the
silica gell

why capacitor using the induction motor?

5 Answers  

---

Why voltage regulation of an alternator is negative for a leading power factor?

3 Answers  

---

How to calculate transformer capacity requirement for a project site?

5 Answers   ABB,

---

How can we find out earth leakage,(shock)in side the house?.. (with out ELCB)

3 Answers  

---

you are a electrical student, why are you coming for software job.

4 Answers   TCS,

---

how the capacitance is caluclated if the load is varying to keep the power factor constant(above0.95)

1 Answers  

---

why we use circuit breakers for switching instead of normal switching device?

0 Answers  

---

What do you mean by turns ratio of instrument transformer?

0 Answers  

---

Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.

0 Answers  

---

can transformer work on dc or not?if we increase the inductance of transformer can it happen to work on dc?

1 Answers  

---

Resistance of a conductor in a close electrical ckt is practically zero why?

1 Answers  

---

What is meant by Energy Efficient Transformers??? give significance

1 Answers   MahaGenco,

---