Scott-T transformer
Overview
Transformer
A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer's coils. A varying current in the first or primary winding creates a varying magnetic flux in the transformer's core and thus a varying magnetic field...
(also called a Scott connection) is a type of circuit used to derive two-phase (2-φ) current from a three-phase
Three-phase
In electrical engineering, three-phase electric power systems have at least three conductors carrying voltage waveforms that are radians offset in time...
(3-φ) source or vice-versa. The Scott connection evenly distributes a balanced load between the phases of the source.
The Scott three-phase transformer was invented by a Westinghouse engineer, C. F. Scott, in the late 1890's to bypass Edison's more expensive rotary converter
Rotary converter
A rotary converter is a type of electrical machine which acts as a mechanical rectifier or inverter. It was used to convert AC to DC or DC to AC power before the advent of chemical or solid state power rectification...
and thereby permit two-phase generator plants to drive Tesla's three-phase motors.Harold C.
