Silica-Gel Breather
     
  BREATHING PROCESS OF THE TRANSFORMER :
     
    When Transformer is loaded or unloaded, the oil temperature inside the transformer tank rises or foots, Accordingly the air volume inside the tank changes, by either sucking in or pushing out the air , The Phenomenon is called “Breathing” of the transformer . The air which is being sucked in contains either foreign impurities and /or Humidity which changes dielectric strength of transformer oil. Hence, it is necessary that, the air entering into the transformer is free from moisture & foreign impurities.
     
  MAINTENANCE :
     
    The Breather is connected to an outlet pipe of the Conservator Vessel and the air which is being sucked by transformer is made to pass through the Silica Gel Breather to dehumidify the air and to remove foreign impurities. The Silica Gel which is filled in the Breather is hard blue Crystals, which has considerable absorption power for moisture. When it gets saturated with moisture, its changes it colour to pinkish white, For Proper dehumidification of air , It is absolutely necessary that this charge of Silica Gel is re-conditioned from pinkish white to deep blue by heating it to a temperature of 2000C.The air, which is passed through Gel is first made to pass through the oil compartment of Breather. This oil removes all foreign impurities from air which enters the Gel compartment. Hence Oil sealed type Silica Gel Breather will keep the oil properties constant, hereby ensuring proper working and hence longer life of the transformer.
     
  ADVANTAGES OF CLEAR VIEW DESIGN OVER WINDOW TYPE :
   
  • Because of excellent visibility of entire mass of Silica Gel (Due to transparent compartment) Change in colour of Gel in any part of the mass is clearly visible, even from a distance, as against very very poor visibility in window type – design.
  • The entire oil cup is also transparent Hence, Change in the level of Oil as well as any sedimentation in oil is clearly visible. as against almost invisibility in window type.
  • The overall wt. of the Breather is much lighter than the Convention Window type Breathers.
     
   
     
SEMLESS TUBE TYPE (WITHOUT JOINTS)
 
  • Clear View Design (Oil Seal Type)
  • Based on Din Standard -42567.
  • Form – 0.120 Kg. to 35 Kg.
     
   
     
 
  • Top & Bottom Aluminum.
  • Powder Coated Inside & Out Side.
  • 1\2”-3\4”-1” B. S. P. Fitting Thread.
  • Safety Grill.
  • Flexible oil Cup.
  • Center Stud Fitting.
  • Top Side Taper & Gel Filling Plug.
     
 
  • 1Flang Type1”B.S.P. Fitting Thread.
     
     
Metal Body Design
     
 
   
 
     
     
  INSTALLATION :
     
    The Breather is connected to transformer by either threaded of flanged joint (after removing the seal) as per details mentioned below. Before putting the Breather into service, remove the oil Cup, Remove the Seals on the air holes of the Cup an fit the Cup to the anther , The Breather is now ready for installation.
     
  FEATURES :
     
    As the colour of the Silica Gel Changes to pinkish whit after prolong use, it needs recharging .For this, Detach Breather from the Transfer. Detach the Oil Cup (6) and remove the Gel Plug (7) By unscrewing it (For Breather Capacity 500gm. And onward) of unscrew threaded washer (For Breather capacity 250gm. And less.) Take out the Silica Gel and heat it in oven up to 2000C, until colour of Gel and changes to deep blue, Refill the Gel in the Breather, fit Oil Cup and Gel/Plug Threaded washers. The Breather is ready for reuse. Please ensure that, Plastic Container is not heated along with the Gel in oven. The Gel content or the size of the Breather is determined by the volume of air passing through the Breather the Oil consents of the Transformer and the atmospheric conditions at the place of installation. Hence the Transformer Manufacturer of the ultimate user should decide the size of Breather for various transformer rating along with the
corresponding oil content.
     
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