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Custom Autotransformers

Our custom Autoformers are designed to fit your system. Our Autoformers are preferred when unusual voltages or currents are required.

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Technical Capabilities

Standard
Power Ratings 500 VA up to 3 MVA
Frequencies
  • 50 Hz
  • 60 Hz
  • 400 Hz up to 20 kHz
No. of Phases
  • 1
  • 3
Voltages Common Custom
  • 110 Vrms
  • 120 Vrms
  • 208 Vrms
  • 220 Vrms
  • 230 Vrms
  • 240 Vrms
  • 277 Vrms
  • 380 Vrms
  • 400 Vrms
  • 415 Vrms
  • 480 Vrms
  • 600 Vrms
Up to 600 Vrms

Autotransformers

Autotransformers have part of a winding in common, resulting in a reduction in size and cost. When the ratio V2:V1 is 0.3 or more, greater cost savings can be seen with an autotransformer. It is important to note that as the difference between input and output voltages increases, as does the savings in materials. Common applications are motor starters, boosters, and static balancers.