Method and apparatus for three-phase to single-phase power...

Details Method and apparatus for three-phase to single-phase power... Method and apparatus for three-phase to single-phase power...

2005-10-04

2005-10-04

Zarroli, Michael C. (Department: 2839)

Electrical connectors

Jumper

C363S148000

Reexamination Certificate

active

06951478

ABSTRACT:
In a piece of equipment deriving power from a three-phase power supply, a method and a connector provide a country-independent arrangement of connection pins to interface with the equipment, so as to provide one or more single-phase output voltages at designated pins. The connector includes a number of electrical terminals wired to the connection pins according to a country-dependent arrangement. In one embodiment, the connector includes one or more jumpers each configured to provide a short circuit between a designated pair of connection pins according to the country-dependent arrangement scheme. The country-independent arrangement provides a single-phase output voltage between 200-240 volts (RMS) across a designated pair of connection pins. In one application, a connector configured for the United States is used in conjunction with a 4-conductor cable having a U.S. conforming connector for plugging into a U.S. three-phase specification wall socket (e.g., NEMA). Similarly, a connector configured for Europe is used in conjunction with a 5-conductor cable having a conforming connector for plugging into a three-phase specification wall socket of the host European country (e.g., IEC 309).

REFERENCES:
patent: 3853376 (1974-12-01), Marechal
patent: 3982804 (1976-09-01), Marechal
patent: 4609244 (1986-09-01), Buscher et al.
patent: 6240249 (2001-05-01), Henderson et al.

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