ASV transformer (supply of auxiliary services)


 

ASV transformer (supply of auxiliary services)

Transformer that supplies auxiliaries in the HVB/HVA source station. It is connected to the MV network on the busbar on the power transformer secondary.


Main characteristics

  • Transformers for exterior installation.
  • Sealed vacuum filling tank

Three transformer variants are available:

  • Open ASVT designed to equip HVB/HVA source stations,
  • ASVT T.P.C. integrating in addition a three-phase protection and disconnection device,
  • Closed ASVT designed to equip energy carrying transformer stations (RTE) to supply station auxiliary services and to earth the neutral.
  • For 100 to 250 kVA (open type): Primary voltage from 5 to 36 kV, Adjustment to +/- 5% and secondary voltage of 410 V.
  • For 100 to 250 kVA (open type + TPC function): Primary voltage from 5 to 36 kV, Adjustment to +/- 5% and secondary voltage of 410 V.
  • For 250 kVA (closed type): Primary voltage from 20 kV to 10,5 kV, Adjustment of +/- 5% à +/- 10% and Secondary voltage of 400 V.

Advantages

Protection-disconnection feature for improving the safety and quality of the supply:

  • Removal of all external manifestations of the device in case of an internal fault, ensuring the safety of goods, individuals, and the transformer environment,
  • Contribution to the quality of the supply by preventing disturbances on the MV network: the transformer disconnects before any trigger at the source station,
  • Removal of the risk of distributing LV that are incorrect or hazardous for the receivers.

Uses

  • Rural environment
  • Peri-urban environment

More information

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