Related Topics

  Protection of Transformer  Equivalent Circuit diagram of single phase Transformer   Core type Transformer and Shell type Transformer  Transformer with winding Resistance and Magnetic Leakage  Transformer with winding Resistance but No Magnetic Leakage  Equivalent Resistance of single phase Transformer  Magnetic leakage of Single Phase Transformer  Oil Flow Indicator of the pump of Power Transformer  Silica Gel Breather of Transformer  Oil Pump of Transformer   Radiator of Transformer and working of Radiator  PRD of Transformer  MOG ( magnetic oil gauge ) of Transformer  Bushing of Transformer ( for H.V side and L.V side )  WTI and OTI of Transformer  Buchholz Relay of Transformer and Working of Buchholz Relay  Conservator tank of Transformer  What is a Power Transformer ?  Short Circuit Test or Full load Cu loss of Transformer   Open circuit test or No load Test of Transformer   Parallel operation of 3-phase Transformer  Earthing or Neutral Grounding Transformer   Transformer on On load Condition   What is a Transformer ?  E.m.f Equation of Transformer   Transformer on No load Condition

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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-generators

Conservator tank of Transformer

Details of Conservator tank of Transformer is given below:

  1. It is a cylindrical shape Tank which is placed on the top of the transformer.
  2. It is connected to main tank of the transformer by short length pipe line.
  3. Conservator tank is partly filled with transformer oil.
    1. Fig-1

      Fig-2

      Now, we describe why the conservator tank fitted to the power transformer?

      Conservator is the most vital part of the transformer, because the Conservator tank takes up the expansion & contraction of oil during running operation. When the load of the transformer is increased, the temperature of oil also increases, hence total volume of the oil increases and absorbs the increased volume of oil in upper space of the conservator tank. If the conservator tank is not fitted to the transformer, the transformer will burst out due to high oil pressure at full loading condition of transformer.The outer and inner portion of conservator tank is shown in figure.


      Fig-3

      Flexible separator or AIR CELL of Conservator Tank

      In the large capacity of the power transformer ( above 5 MVA ), a Flexible separator ( Air Cell ) is provided inside the conservator for avoiding direct contact air with the transformer oil.Air Cell provides a permanent, flexible and non-porous barrier between the atmosphere and the transformer oil without affecting the operational function of the system.

      The basic construction of the separator is a high resistance fabric coated externally to resist transformer oil and internally to Ozone and weather resistance. The following advantage is given below:-

      1. Avoids contact between air and oil.
      2. Protection against water vapor and gases.
      3. Suppression of any gas bubble formation in oil.
      4. Compensation of large volume changes.

      Flexible separators are made from coated fabric consisting of :

    2. Textile reinforcement i.e highly resistant polyamide fabric.
    3. External coating chemically resistance to transformer oils.
    4. Inner coating resistance to Ozone and all weather conditions.
    5. Major characteristics of materials are listed below:-
      Mass-1400 g/m2
      Coating- Poly acrylonitrile butadiene
      Textile Reinforcement- Polyamide
      Breaking Strength before immersion in oil--> 300 da N/5 cm.

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      More details go to:

    6. electrical4u.com
    7. electrical-engineering-portal.com
    8. Youtube.com


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