Unconventional measurement transformer

Details Unconventional measurement transformer Unconventional measurement transformer

1996-11-05

1999-03-30

Kemper, Melanie

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

702 58, G01R 1524, H01F 3834

Patent

active

058900969

ABSTRACT:
The unconventional measurement transformer for protection and/or measurement equipment of a three-phase electricity grid delivers digital information representative of a voltage or of a current of an electricity line by making use of optical sensors that are provided in sufficient number to achieve a certain amount of redundancy in the measurement paths. The output paths of the optical sensors are processed by digital processing means to validate said voltage or current digital information by a majority vote. Advantage is taken of features specific to three-phase high voltage and to the performance of such optical sensors to reduce the number of optical sensors required in an unconventional measurement transformer to obtain a degree of redundancy.

REFERENCES:
patent: 4580234 (1986-04-01), Fujitani
patent: 4999571 (1991-03-01), Ishiko et al.
patent: 5202812 (1993-04-01), Shinoda et al.
patent: 5608327 (1997-03-01), Jones et al.

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