Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2004-12-08
2009-02-10
Barbee, Manuel L (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S066000, C324S076210
Reexamination Certificate
active
07490013
ABSTRACT:
Electric power grids are usually constantly monitored for AC frequency. The monitoring of the AC frequency, however, usually does not reveal information that would indicate impending failure in the power grid. This document describes several techniques for detecting impending failure in the power grid by examining line data in the frequency domain.
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Barbee Manuel L
Lumen Patent Firm
OSlsoft, Inc.
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