公开(公告)号：US20230084963A1

公开(公告)日：2023-03-16

申请号：US17917480

申请日：2021-04-09

Applicant: HATCH LTD.

Inventor： Matthew Gorczyca ,  Mark James Mitchell ,  Patrick Henry McGinn ,  Michael Morgan Campbell ,  Matthew Douglas Brown

IPC: G01R31/52 ,  B60M3/00 ,  B61D15/12 ,  B61K9/08 ,  B61L27/53 ,  G01R33/07 ,  G01R31/00 ,  G01R31/11 ,  G01R33/00 ,  G01R33/028 ,  G01R33/04 ,  G01R33/09

Abstract: A method, device, and system for detecting a current leak in a traction power rail. Magnetic or electrical properties of the rail are measured. The measurements are performed using a rail instrument that senses the properties around the rail at various times while the instrument is being moved down the rail, such as using a cart or train. The rail instrument may be a flux concentrator or open Rogowski coil. The locations of the rail, about which the readings are taken by the rail instrument, may be determined and correlated with the measurements themselves. The method may comprise measuring the magnetic field of the rail along a length of the rail, and identifying a leak based on differences between the magnetic field measurements. The system may comprise a cart comprising the rail instrument and a location instrument.

公开(公告)号：US12145636B2

公开(公告)日：2024-11-19

申请号：US17917480

申请日：2021-04-09

Applicant: HATCH LTD.

Inventor： Patrick Henry McGinn ,  Mark James Mitchell ,  Matthew Douglas Brown ,  Matthew Gorczyca ,  Michael Morgan Campbell

IPC: B61K9/08 ,  B60M3/00 ,  B61D15/12 ,  B61L27/53 ,  G01R31/00 ,  G01R31/11 ,  G01R31/52 ,  G01R33/00 ,  G01R33/028 ,  G01R33/04 ,  G01R33/07 ,  G01R33/09

Abstract: A method, device, and system for detecting a current leak in a traction power rail. Magnetic or electrical properties of the rail are measured. The measurements are performed using a rail instrument that senses the properties around the rail at various times while the instrument is being moved down the rail, such as using a cart or train. The rail instrument may be a flux concentrator or open Rogowski coil. The locations of the rail, about which the readings are taken by the rail instrument, may be determined and correlated with the measurements themselves. The method may comprise measuring the magnetic field of the rail along a length of the rail, and identifying a leak based on differences between the magnetic field measurements. The system may comprise a cart comprising the rail instrument and a location instrument.