Scott-T transformer

Type of circuit used to produce two-phase electric power (2 φ, 90 degree phase rotation) from a three-phase (3 φ, 120 degree phase rotation) source, or vice versa.

- Scott-T transformer

9 related topics

Three-phase electric power

Common type of alternating current used in electricity generation, transmission, and distribution.

Common type of alternating current used in electricity generation, transmission, and distribution.

It also makes it possible to produce a rotating magnetic field in an electric motor and generate other phase arrangements using transformers (for instance, a two phase system using a Scott-T transformer).

Charles F. Scott (engineer)

Charles Felton Scott (September 19, 1864 in Athens, Ohio – December 17, 1944) was an electrical engineer, professor at Yale University and known for his invention of the Scott-T transformer in the 1890s.

Transformer

Passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.

Passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.

General winding configuration: By IEC vector group, two-winding combinations of the phase designations delta, wye or star, and zigzag; autotransformer, Scott-T

Two-phase electric power

Early 20th-century polyphase alternating current electric power distribution system.

Early 20th-century polyphase alternating current electric power distribution system.

Two-phase power can be derived from a three-phase source using two transformers in a Scott connection: One transformer primary is connected across two phases of the supply.

Tap converter

Variation on the cycloconverter, invented in 1981 by New York City electrical engineer Melvin Sandler and significantly functionally enhanced in 1982 through 1984 by graduate students Mariusz Wrzesniewski, Bruce David Wilner, and Eddie Fung.

Variation on the cycloconverter, invented in 1981 by New York City electrical engineer Melvin Sandler and significantly functionally enhanced in 1982 through 1984 by graduate students Mariusz Wrzesniewski, Bruce David Wilner, and Eddie Fung.

By employing a Scott transformer input connection, in order to provide a quadrature phase, an even smoother output waveform can be obtained.

8974

Power tetrode designed for megawatt power levels in industrial and broadcast applications.

Power tetrode designed for megawatt power levels in industrial and broadcast applications.

The two filaments may be excited in quadrature to reduce hum contributed by an AC power source.

Synchro

A synchro (also known as selsyn and by other brand names) is, in effect, a transformer whose primary-to-secondary coupling may be varied by physically changing the relative orientation of the two windings.

A synchro (also known as selsyn and by other brand names) is, in effect, a transformer whose primary-to-secondary coupling may be varied by physically changing the relative orientation of the two windings.

A special T-connected transformer arrangement invented by Scott ("Scott T") interfaces between resolver and synchro data formats; it was invented to interconnect two-phase AC power with three-phase power, but can also be used for precision applications.

Mathematics of three-phase electric power

In electrical engineering, three-phase electric power systems have at least three conductors carrying alternating voltages that are offset in time by one-third of the period.

In electrical engineering, three-phase electric power systems have at least three conductors carrying alternating voltages that are offset in time by one-third of the period.

This Scott T connection produces a true two-phase system with 90° time difference between the phases.

Index of electrical engineering articles

Alphabetical list of articles pertaining specifically to electrical and electronics engineering.

Alphabetical list of articles pertaining specifically to electrical and electronics engineering.

Scott-T transformer

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