公开(公告)号：US20240288336A1

公开(公告)日：2024-08-29

申请号：US18570975

申请日：2022-06-09

Applicant: Eaton Intelligent Power Limited

Inventor： Gurmeet SINGH ,  Viral SHAH

IPC: G01M13/045

CPC classification number: G01M13/045

Abstract: Methods and apparatus are described to provide notification of a bearing fault in a motor by analysing the motor's current spectrum. Data samples measuring the current drawn by the motor are received from a current sensor. A frequency of the motor supply, speed of the motor and characteristic frequency of the motor are determined. The data samples are processed to produce a frequency spectrum of the current from which it is determined whether any indications of bearing fault are present. These bearing faults are indicated by peaks in the current spectrum corresponding to the characteristic frequencies.