Phase Converter:

A phase converter or rotary phase converter is a three phase electrical machine that is energized by single phase power. The phase converter uses the process of induction and capacitors to convert a third phase to be utilized by electrical equipment acceptable to phase converter power.

What is a rotary phase converter?

Abbreviated RPC, a rotary phase converter is a device that allows running three phase loads using single phase electric power, by means of a rotating three phase induction motor called an idler. If the idler's rotor spins while two terminals are energized, it induces voltage in the third terminals that is shifted by +/- 120 degrees from the voltage between the first two terminals, thus generating three phase electricity.

RPCs are used where three phase

devices need to be used, but only single phase power is available. Three phase machines cannot run on single phase power without a device to generate three phase power. Since prices (and quality) of used three phase machines are usually more favorable than those of their single phase counterparts, demand exists for phase converters.

Phase Conversion:

Phase conversion is really an incorrect term. A phase is not converted but produced. Phase conversion really means in the world of a rotary converter that an extra phase is produced in a two phase line that is usually represented by a 1 to 3 phase call out. The 1 to 3 phase is actually two to three phase discussed later. The term phase conversion should be renamed phase production. A convert-a-phase converter or phase converter or better yet rotary converter may be renamed a convert-a-phase phase generator. Phase generator is a more accurate name for what is taking place. Phase conversion only takes place in the sense that one of the phases of the 1 to 3 phase system is connected to the manufactured phase by a capacitor to maintain a correct phase angle with the existing single phase system.

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Rotary Phase Converter (RPC) Configuration & Selection Table

Rotary Phase Converter Silver Line Wiring Diagram

Rotary Phase Converter Silver Line for Multi-Machine Loads

Rotary Phase Converter Load Calculation Form

Rotary Phase Converter Dimensions Chart

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