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Where is a Scott-T Transformer used?

Typical applications for a Scott-T transformer include:

  • Used in an electric furnace installation where it is needed to operate two single-phase feeds and draw a balanced load from the three-phase supply.
  • Used to supply the single phase loads such as traction power. This helps to keep the load on the three-phase system as nearly balanced as possible.
  • Used to link a 3-phase system with a two–phase system with the flow of power in either direction.

The Scott-T connection permits conversions of a 3-phase system to a two-phase system or vice versa. Since 2-phase generators are not available, the conversion from two phases to three phases is not a practical application.

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