Polyphase emulator for single phase circuit

Details Polyphase emulator for single phase circuit Polyphase emulator for single phase circuit

1993-05-27

1994-03-22

Stephan, Steven L.

Electric power conversion systems

Phase conversion without intermediate conversion to d.c.

With automatic voltage magnitude or phase angle control

363148, 328 24, H02M 500

Patent

active

052970167

ABSTRACT:
An emulator which is able to operate on a standard single phase 120 VAC line, generates simulated three-phase alternating current in order to demonstrate the operation of a polyphase electricity meter. The emulator is also capable of demonstrating the operation of the polyphase electricity meter which has been incorrectly wired into the polyphase circuit, i.e., with incorrect or missing connections to the current transformers; or in which there are problems with the phasing of the polyphase circuit, i.e., incorrect phase differences between circuits or between the currents and voltages within any of the phases.

REFERENCES:
patent: 2673954 (1949-10-01), Smith
patent: 3267358 (1966-08-01), Anderson
patent: 4322790 (1982-03-01), Wolfinger
patent: 4618809 (1986-10-01), Maeda
patent: 4887018 (1989-12-01), Libert
patent: 4908744 (1990-03-01), Hollinger
patent: 5133014 (1992-07-01), Pritchard

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