Transformer with tap changer


 

Distribution transformer with automatic voltage regulation system.


Main characteristics

Main functions:

The transformer with tap changer can transform the HVA voltage level of the low voltage distribution network by automatically changing the latter within a range compliant with regulations in force in the country in question.

  • Sealed vacuum filling tank
  • PCB-free liquid dielectric
  • Available in a vegetable oil version (natural ester)
  • ONAN cooling mode
  • Copper and aluminium coils, depending on the power
  • Crystal-oriented iron-silicon sheet magnetic circuit
  • Power: from 250 kVA to 630 kVA
  • Frequency: 50 Hz
  • Primary rated voltage: 15 or 20 kV (other voltage, contact us)
  • Secondary rated voltage: 410 V (other voltage, contact us)
  • Automatic voltage adjustment (during charge) within a range that can reach +/-10% with 9 positions

Advantages

  • No maintenance in normal service condition
  • Losses compliant with specifications requested by the customer

Uses

Transformers for distribution network experiencing significant voltage fluctuations due to decentralised energy injection (renewable energies), with the integration of storage devices, with load variations or multi-directional energy flows.

More information

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