Circuit analyzing system

Details Circuit analyzing system Circuit analyzing system

G - Physics

01

R

G01R 23/165 (2006.01) G01R 19/00 (2006.01) G01R 23/20 (2006.01) H02H 3/52 (2006.01) H02J 3/01 (2006.01)

Patent

CA 2112451

1. A circuit analyzing system includes a current transformer for extracting current from a phase or neutral conductor of a three phase line, a filter connected to the output of the current transformer and functioning to substantially trap current at the fundamental frequency while substantially passing currents at various harmonic frequencies thereof, and signal processing circuitry connected to the output of the filter to perform various functions with the harmonic frequency current input thereto. Among these functions, as shown in various preferred embodiments, are measurement of the harmonic signal in RMS and conveyance of the output to a display instrument for a user or utility's convenience in monitoring harmonic frequency circuits, which have become more common with the advent of electronic equipment having internal power supplies such as personal computers, work stations, printers, and the like. Other functions include a user or utility's connecting a demand circuit mechanism to the measured currents (preferably RMS/harmonic frequency currents), and/or using comparator circuitry to sense the measured harmonic frequency currents and, if they exceed a desired level set by the user or utility, to output a signal to a tripping device such as a power contactor or relay which will in turn institute load shedding.

Affiliated with

Also associated with

Rating

Circuit analyzing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit analyzing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit analyzing system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1943007