Digital data processing system with asynchronous sensing units

Details Digital data processing system with asynchronous sensing units Digital data processing system with asynchronous sensing units

H - Electricity

04

L

340/90

H04L 5/14 (2006.01) G06F 17/40 (2006.01)

Patent

CA 1160310

?4-25411M/KH/81 ABSTRACT OF THE DISCLOSURE A digital data processing system in which system parameters in an electric power system such as current or vol- tage are sampled at predetermined time intervals and converted into digital data by analog-to-digital converter units. The sampling frequency is made higher than the expected frequency of variation of these parameters. Sensing units located re- motely from one another sample these parameters at rates which are asynchronous between sensing units. The data transmitted from the various sensing units is sent to a central processing unit where the received signals are sampled synchronously and then processed in order to provide protection for the electric power system.

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