Patent ID: 8013592
Filing Date: 2011-09-06
Classification: G01R

Abstract:
1. A method for detecting in an electrical power distribution system having a power line with a single phase or poly phase wiring, the wiring phase at a remote location relative to a reference wiring phase at a reference location, the method comprising the steps: connecting at least one relay location to a wiring phase of said poly-phase power line at a location between said reference location and said remote location, detecting a first phase relation between the reference wiring phase voltage at the reference location and the wiring phase voltage at a said relay location; detecting a second phase relation between a wiring phase voltage at a said relay location and a wiring phase voltage at said remote location; determining the wiring phase of said remote location relative to the wiring phase at said reference location based on said first phase relation and said second phase relation; and transmitting from said relay location said detected first phase relation towards said remote location.