公开(公告)号：US20230194587A1

公开(公告)日：2023-06-22

申请号：US18080449

申请日：2022-12-13

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Satish Mohanty ,  Gurmeet Singh ,  Sauradeep Datta ,  Deepak Balaji Somayajula ,  Swati Narula ,  Santosh Kumar Sharma ,  Amresh Kumar

IPC: G01R27/26 ,  G01R27/08 ,  G01R19/02

CPC classification number: G01R27/2605 ,  G01R27/08 ,  G01R19/02

Abstract: A method for determining a capacitance value of a capacitor is provided. The method includes receiving a current signal flowing through the capacitor and receiving a voltage signal applied across the capacitor. The received voltage signal and the received current signal are filtered with a low pass filter. The filtered voltage signal and the filtered current signal are then discretized. The discretized voltage signal and the discretized current signal are transformed into a frequency domain. The capacitance value of the capacitor is determined from the transformed voltage signal and the transformed current signal.

公开(公告)号：US20240369647A1

公开(公告)日：2024-11-07

申请号：US18141490

申请日：2023-05-01

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Viral Shah ,  Gurmeet Singh ,  Jagdambika Srivastava ,  Joshua D. Myers ,  Mark A. Gould

IPC: G01R31/68 ,  G01R19/02 ,  G01R19/10 ,  G01R27/20

Abstract: An automatic transfer switch structured to switch between a first power source and a second power source to supply continuous power to a load includes a power switching mechanism including a switch structured to couple the load to one of the first power source and the second power source; a plurality of sensors including a voltage sensor coupled to a joint on first power source side, a voltage sensor coupled to a joint on second power source side, a voltage sensor coupled to a joint on load side, and a current sensor structured to sense current flowing through the switch; and a controller coupled to the power switching device and the plurality of sensors and structured to control operation of the ATS, the controller including a fault identifier structured to detect and identify a fault within the ATS and estimate severity of the fault.

公开(公告)号：US12140637B2

公开(公告)日：2024-11-12

申请号：US18081190

申请日：2022-12-14

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Gurmeet Singh ,  Deepak Balaji Somayajula ,  Satish Mohanty ,  Chaitanya Pradeep Bhalwankar ,  Stuart John Moody ,  Daniel Peck ,  Nirav Mahenra Parmar

IPC: G01R31/34 ,  G01R25/00 ,  H02P29/024

Abstract: The present disclosure relates to systems and methods for detecting a winding fault and the winding fault severity in a brushless direct current motor before motor failure. Methods for detecting a winding fault include time domain based sequence component analysis, fast Fourier transform analysis, or Hilbert analysis. Methods for detecting the severity of a winding fault include analysis of the standard deviation of real mean squared values determined using motor currents.

公开(公告)号：US20230194612A1

公开(公告)日：2023-06-22

申请号：US18081190

申请日：2022-12-14

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Gurmeet Singh ,  Deepak Balaji Somayajula ,  Satish Mohanty ,  Chaitanya Pradeep Bhalwankar ,  Stuart John Moody ,  Daniel Peck ,  Nirav Mahenra PARMAR

IPC: G01R31/34 ,  G01R25/00 ,  H02P29/024

CPC classification number: G01R31/346 ,  G01R25/00 ,  H02P29/024

Abstract: The present disclosure relates to systems and methods for detecting a winding fault and the winding fault severity in a brushless direct current motor before motor failure. Methods for detecting a winding fault include time domain based sequence component analysis, fast Fourier transform analysis, or Hilbert analysis. Methods for detecting the severity of a winding fault include analysis of the standard deviation of real mean squared values determined using motor currents.

公开(公告)号：US20220025891A1

公开(公告)日：2022-01-27

申请号：US17380531

申请日：2021-07-20

Applicant: Eaton Intelligent Power Limited

Inventor： Sneha Abhyankar ,  Gurmeet Singh ,  Santosh Kr Sharma ,  Swetha Prakash ,  Amresh Kumar ,  Ragini Jain ,  Steven Andrew Dimino ,  David Glenn Loucks

IPC: F04D15/00 ,  F04D13/06

Abstract: A control system includes: a controller configured to: access an estimated torque and estimated speed of a motor mechanically coupled to an impeller of a centrifugal machine; access at least one set of pre-determined performance data values associated with a known speed of the impeller, where each set of pre-determined performance data values includes: a plurality of flowrate values and a plurality of performance metric values; determine an operating point of the centrifugal machine based on the estimated torque, the estimated speed, and the at least one set of pre-determined performance data values; compare the determined operating point to a best efficiency point (BEP) associated with the centrifugal machine; and determine whether to change the speed of the motor based on the comparison.