Phase identification system and method

Details Phase identification system and method Phase identification system and method

2005-11-17

2008-05-13

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Conductor identification or location

C324S076520, C324S076770, C702S072000

Reexamination Certificate

active

07372246

ABSTRACT:
A system and method for determining the relative phase between current-carrying conductors. A reference unit samples and digitizes a voltage waveform at a reference location and transmits the digitized voltage waveform. A field sampling unit is placed on or directly adjacent a field conductor at a field location and transmits a signal representative of the voltage waveform of the field conductor. A field unit receives and digitizes the waveform received from the field sampling unit, and receives the digitized voltage waveform from the reference unit, and compares the digitized field waveform and the digitized reference waveform.

REFERENCES:
patent: 5473244 (1995-12-01), Libove et al.
patent: 6642700 (2003-11-01), Slade et al.
patent: 6734658 (2004-05-01), Bierer
patent: 2003/0169029 (2003-09-01), Piesinger

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