INTANK ONLOAD TAPCHANGERS (OLTC) FOR TRANSFORMERS

  OVERVIEW

  •  Manufactured since 1997 to the design of ELIN OLTC GmbH
  •  Type tested as per IEC: 60214, IS: 8468
  •  For ratings upto 400 kV, 500 MVA
  •  Suitable for ester fluid filled On Load Tapchangers.
  •  Compatible for SCADA and all modern data communication equipment and systems.
  •  Available in several configurations:  
  •  
IS-02
ID-02
IJ-02
IV-02
IM TAPCHANGER
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INTANK ONLOAD TAPCHANGER TYPES

IS-02
IS
  • Legacy product manufactured to ELIN design.
  • Available in various combinations of step voltages and currents upto 35 positions.
  • Suitable for linear, coarse-fine and reversing type of windings.
  • Applications are mostly in transmission/ network transformers.
  • Commonly used for maintaining grid voltage.
  • Also suitable for furnace application, where number of operations are large.
  • Tapchanger rating upto 300 kV, 2100 A suitable for transformers of 765 kV.
IV-02
IV
  • Selector switch type intank On Load Tapchanger.
  • Suitable for distribution, sub-transmission and transmission range of applications.
  • Available in various combinations of step voltage and currents upto 27 positions.
  • Suitable for linear, coarse fine and reversing type of transformer windings.
  • Applications are mostly in transmission or industrial transformers.
  • Tapchanger rating upto 123 kV, 500 A suitable.
Untitled-2-02
ID
  • Intank Onload Tapchanger suitable for special design of legacy transformers used in transmission systems.
  • Available in various combinations of step voltages and currents upto 23 positions.
  • Suitable for linear type of windings.
  • Applications are mostly in transmission/ network transformers.
  • Tapchanger rating upto 123 kV, 400 A.
IM TAPCHANGER
IM
    • Alternative to ‘S’ type tapchanger.
    • Available in various combinations of step voltages and currents for different number of steps.
    • Suitable for linear, coarse-fine and reversing type of windings.
    • Applications are mostly in transmission/ network transformers.
    • Commonly used for maintaining grid voltage.
    • Tapchanger rating upto 300 kV, 1800 A suitable for transformers of 765 kV.
IJ-02
IJ
  • Compact Ontank On load tapchanger suitable for distribution transformers used in Compact/
  • Unitized Substations.
    Supplied with inbuilt online filter to enhance life.
TAPCHANGER FILTER

Helps extend duration between periodic moisture removal filtration activities by maintaining breakdown voltage of oil in the tapchanger.

    • Reliable security protection
    • Frequent automatic online operation
    • Removal of metal particles and other impurities in oil
    • Extension of insulating oil service life
    • Reduction of the outage repair times of transformer
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SYSTEM COMPONENTS

Drive Mechanism

  • Drive Mechanism suitable for On Load Tapchangers of CTR make.
  • Available for different gear ratios and number of turns of handle per tapchange.
  • Drive mechanisms are also available for legacy products like ELIN, etc. tapchangers with customization as per site requirement.

 

APPROVAL /

COMPLIANCES

  • ISO 9001:2008 
  • Domestic Utilities
  • Railways
  • Power Grid Corporation Of India Limited (PGCIL)
  • State Electricity Boards
  • IEC 60214-1
  • Certified Transformer Manufacturers
  • Private And Public Sector Companies
  • National Thermal Power Corporation (NTPC)
  • Reputed consultants
  • IS 8468