Related Post

Transformer on No load ConditionE.m.f Equation of Transformer Transformer on load Condition Transformer DefinitionEarthing or Neutral Grounding Transformer Parallel operation of TransformerOpen circuit test or No load Test of Transformer Short Circuit Test or Full load Cu loss of Transformer What is a Power Transformer ?Conservator tank of TransformerBuchholz Relay of Transformer and Working of Buchholz RelayBushing of Transformer ( for H.V side and L.V side )WTI and OTI of TransformerMOG ( magnetic oil gauge ) of TransformerPRD of TransformerRadiator of Transformer and working of RadiatorOil Pump of Transformer Silica Gel Breather of TransformerOil Flow Indicator of the pump of Power TransformerMagnetic leakage of Single Phase TransformerEquivalent Resistance of single phase TransformerTransformer with winding Resistance but No Magnetic LeakageTransformer with winding Resistance and Magnetic LeakageCore type Transformer and Shell type TransformerEquivalent Circuit diagram of single phase Transformer Protection of Transformer


SymbolsTransformerRelayPower-SystemBasic-electricalACSR-ConductorCircuit-BreakerInterview-questions-of-Basic-ElectricityInterview-questions-of-transformerInsulatorCurrent-TransformerMCQMCQ-powersystemThermal-power-stationInterview-questions-of-Power-SystemPower-ElectronicsInterview-questions-of-Underground-CableInterview-questions-of-IlluminationIlluminationMCQ-of-ElectronicsMCQ-of-Basic-ElectricalMCQ-of-Transformers MCQ-of-D.C-motor MCQ-of-D.C-generatorsMCQ-Control-SystemMCQ-Measurementsmcq-of-Generation-power-systemMCQ-of-Induction-MotorMCQ-of-Transmission-DistributionMCQ-of-Electrical-MachinesMCQ-of-Alternator-and-Synchronous-MotorsMCQ-Electric-Power

Silica Gel Breather of Transformer

≪ Previous Next ≫

Silica gel Breather is cylindrical type container which is fitted to the conservator tank through a pipe line which is totally filled with silica gel crystals used for absorbing any moisture present in the air during breathing action of transformer due to expansion and contraction of transformer oil in the transformer. The size of Breather depends on the volume of transformer main tank as well as quantity of transformer oil in the transformer. A oil pot is connected under the breather. The details of silica gel Breather is shown in figure.

Fig. 1 ( Before moisture absorbed )

Maintenance of Silica gel Breather

When the Silica gel breather is first installed, the crystals have a blue tint, and after a period of operation, the colour of the tinted crystals gradually changes to pink , this is an indication that the silica gel is becoming saturated and losing its absorbent properties. When there is a preponderance of pink crystals the silica gel should be changed or reactivated.

Fig. 2 ( after moisture absorbed )

Silicagel may be reactivated by heating in a thin pan at a temperature of 1500C to 2000C for two to three hours when the crystals should have regained their original blue tint.
Before filling the container with silica gel, clean and dry all parts of the breather. Verify that the oil level in the oil cup is correct or not –correct.
Finally ensure that the breather is not choked and is free for passage of air.

More details go to:-


  • ≪ Previous Next ≫

    Related topics :

    Recent Post

    Multiple Choice Question (MCQ) of Materials page-6:
    51. The permeability and permittivity of a medium are
    A) independent of each other
    B) related by the atomic number
    C) related by the Boltzmann’s constant
    D) related by the velocity of electromagnetic waves.


    Multiple Choice Question (MCQ) of Materials page-5:
    41. Bakelite is
    A) highly inflammable
    B) low resistance conductor
    C) a semi-conductor
    D) uncombustible.


    Multiple Choice Question (MCQ) of Materials page-4:
    31. Which of the following pairs is commonly used in thermocouples?
    A) Copper-constant
    B) Aluminium-tin
    C) Iron-steel
    D) Silver-German silver.