Power Transformer Part Anti-Explosion Dehydrating Breather with
Silica Gel
Product Description
Whenever an electrical power transformer is loaded, the temperature
of the transformer insulating oil increases, consequently the
volume of the oil is increased. As the volume of the oil is
increased, the air above the oil level in conservator will come
out. Again at low oil temperature; the volume of the oil is
decreased, which causes the volume of the oil to be decreased which
again causes air to enter into conservator tank.
The natural air always consists of more or less moisture in it and
this moisture can be mixed up with oil if it is allowed to enter
into the transformer. The air moisture should be resisted during
entering of the air into the transformer, because moisture is very
harmful for transformer insulation. A silica gel breather is the
most commonly used way of filtering air from moisture.
Silica gel breather for transformer is connected with conservator
tank by means of flange.
Construction of Silica Gel Breather
The silica gel breather of transformer is very simple in the aspect
of design. It is nothing but a pot of silica gel through which, air
passes during breathing of transformer. The silica gel is a very
good absorber of moisture. Freshly regenerated gel is very
efficient, it may dry down air to a dew point of below -40oC. A
well maintained silica gel breather will generally operate with a
dew point of -35oC as long as a large enough quantity of gel has
been used. The picture shows a silica gel breather of transformer.
Working Principle of Silica Gel Breather
Silica gel crystal has tremendous capacity of absorbing moisture.
When air passes through these crystals in the breather; the
moisture of the air is absorbed by them. Therefore, the air reaches
to the conservator is quite dry, the dust particles in the air get
trapped by the oil in the oil seal cup. The oil in the oil sealing
cup acts as barrier between silica gel crystal and air when there
is no flow of air through silica gel breather. The color of silica
gel crystal is dark blue but, when it absorbs moisture; it becomes
pink.
When there is sufficient difference between the air inside the
conservator and the outside air, the oil level in two components of
the oil seal changes until the lower oil level just reaches the rim
of the inverted cup, the air then moves from high pressure
compartment to the low pressure compartment of the oil seal. Both
of these happen when the oil acts as core filter and removes the
dust from the outside air.
Features
- Very good absorber of moisture
- Freshly regenerated gel is very efficient
- Dry down air to a dew point
FAQ
Q1: What is your MOQ?
A: Our MOQ is 1 piece.
Q2: Do you offer sample?
A: Yes, we can provide you a sample.
Q3: What is your payment term?
A: 100% TT in advance.
Q4: What is your lead time?
A: 3-10 work days after order confirmed. Urgent need please discuss
with us to find a way out!
Q5: Are you a manufacturer or a trader?
A: We are a manufacturer and all the items mentioned are made by
ourselves. We have our own sales team to provide you the best
export service too.
Q6: Can you make the packing and logo as customer request?
A: Yes we can.
Product picture
