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Transformers with tap changers

Transformers with tap changers

We produce transformers with installed voltage regulation device under load (OLTC). In cases where deeper and more frequent voltage regulation is required without disconnecting the transformer from the load. On-load regulation allows adjustments to be made almost immediately, without the need to take the transformer out of service, disconnect the consumer or use reserve power. The on-load tap-changer can be made as a stand-alone version or on a hinged frame.

  • On-load tap-changer is used for mains regulation or for low voltage regulation (primary control).
  • Load switching
  • Non-standard control range (up to ±16%)

Installation methods

  • Mounted on the transformer frame
  • Freestanding cabinet
  • Both tap-changers with the possibility of installation in the transformer housing.


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