Measuring method for deciding direction to a flickering source

Details Measuring method for deciding direction to a flickering source Measuring method for deciding direction to a flickering source

2003-12-17

2009-12-29

West, Jeffrey R (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C324S512000

Reexamination Certificate

active

07640118

ABSTRACT:
Method and arrangement for deciding the direction to a flickering source in relation to a measurement point in an electrical network with alternating current with a network frequency with low-frequency amplitude variations from the flickering source. The method includes the steps:recording an amplitude-modulated current signal having signals that originate from the network frequency and the low-frequency amplitude variations in the current signal;recording an amplitude-modulated voltage signal having signals that originate from the network frequency and the low-frequency amplitude variations in the voltage signal;creating a flicker power with a sign value by multiplication of the low-frequency amplitude variations in the current signal and the low-frequency amplitude variations in the voltage signal, andanalyzing the sign value, with the sign value indicating in which direction the flickering source is to be found in relation to the measurement point.

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Database WPI Week 199909 Derwent Publications Ltd., London, GB; Class S01, AN 1999-096615 7 CN 1195775 A (Univ Zhejiang) Oct. 14, 1998.

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