公开(公告)号：US20230026139A1

公开(公告)日：2023-01-26

申请号：US17868975

申请日：2022-07-20

Applicant: ABB Schweiz AG

Inventor： Joerg Ostrowski ,  Stephan Wildermuth ,  Ralf Gitzel ,  Patrik Reto Kaufmann ,  Joerg Gebhardt ,  Kai Koenig ,  Boguslaw Samul

IPC: G01J5/80

Abstract: A system and method includes at least one temperature sensor, a processing unit, and an output unit. The temperature sensor acquires a temperature measurement at a first location of an operational device, which first location is in thermal contact with a second location of the operational device. The processing unit selects a simulated temperature distribution of the first location of a simulated device from a plurality of simulated temperature distributions of the first location and compares the temperature measurement with simulated temperature distributions of the first location, and determines whether a hot spot exists or is developing at the second location. The determination comprises utilization of a correlation between the simulated temperature distribution of the first location and the second location for the selected simulated temperature distribution of the first location of the simulated device.

公开(公告)号：US20230014691A1

公开(公告)日：2023-01-19

申请号：US17863797

申请日：2022-07-13

Applicant: ABB Schweiz AG

Inventor： Joerg Ostrowski ,  Patrik Reto Kaufmann ,  Stephan Wildermuth ,  Ralf Gitzel ,  Kai Koenig ,  Joerg Gebhardt ,  Boguslaw Samul

IPC: G01J5/00 ,  G01J5/08 ,  G01R19/00 ,  G01R31/327

Abstract: A system and method for monitoring a device includes a temperature sensor, a processing unit, and an output unit. The temperature sensor acquires a temperature measurement during a heat-up phase of a component and provides a temperature measurement to the processing unit, which selects a simulated transient temperature distribution of the simulated component of the simulated device from a plurality of simulated transient temperature distributions of the simulated component of the simulated device. The selection comprises a comparison of the at least one temperature measurement with the plurality of simulated transient temperature distributions at an equivalent time point in the simulated heat-up to a time point at which the temperature measurement was acquired. When a hot spot is developing an output unit outputs an indication of a fault associated with the component.

公开(公告)号：US20220357206A1

公开(公告)日：2022-11-10

申请号：US17871064

申请日：2022-07-22

Applicant: ABB Schweiz AG

Inventor： Joerg Gebhardt ,  Stephan Wildermuth ,  Ralf Gitzel ,  Kai Koenig ,  Joerg Ostrowski ,  Patrik Reto Kaufmann ,  Boguslaw Samul

IPC: G01J5/00 ,  G06T7/00 ,  H04N5/247 ,  G01R31/327

Abstract: A system for monitoring a switchgear includes multiple infrared cameras with fields of view; a processing unit; and an output unit. The cameras acquire multiple image data of a plurality of phases of the switchgear, and the processing unit determines whether there is a phase imbalance in a specific phase comprising a determination from a plurality of image data that temperature information for a plurality of component parts and/or a plurality of connections for that specific phase has an overall enhanced temperature compared to the temperature information for the same plurality of component parts and/or the same plurality of connections for one or more other phases of the plurality of phases. The output unit is configured to output information that a fault or load imbalance has occurred in a phase.