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Compact, three-phase on-load tap-changer for voltage regulation of dry-type transformers

Your benefits at
a glance

  • Integrated voltage regulator and motor-drive unit
  • Simple handling
  • Moving parts encapsulated to protect against contact


Technical Data

Max. rated through-current 170 A
Max. rated step voltage 500 V
Max. rated switching capacity 75 kVA
Max. voltage for operational equipment Um 12 kV
Application: At any selectable winding position.
Operating positions (linear): 9 max.

Product description

The on-load tap-changer VACUTAP® AVT with vacuum interrupters and integrated motor drive serves as switching element and for setting the ratio of dry-type transformers under load.


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