-
公开(公告)号：US20240248137A1
公开(公告)日：2024-07-25
申请号：US18417283
申请日：2024-01-19
Applicant: ABB Schweiz AG
Inventor： Simi Valsan , Ranjeet Kumar , Arinjai Gupta
IPC: G01R31/34
CPC classification number: G01R31/343
Abstract: A system and method for detecting stator inter-turn fault in induction machines includes receiving a time series data of a stator current using a plurality of current sensors connected to a stator of the induction machine, determining first and second signature time series data of stator current using fundamental components and harmonic components of the stator current, determining first and second scaled signatures using an Unbalance Factor, determining a discrimination factor, and detecting a stator inter-turn fault when the discrimination factor is greater than a predetermined stator inter-turn fault threshold value.
-
2.发明公开公开(公告)号：US20240192713A1
公开(公告)日：2024-06-13
申请号：US18582853
申请日：2024-02-21
Applicant: ABB Schweiz AG
Inventor： Simi Valsan , Arinjai Gupta
Abstract: A method and a system for controlling an on-load tap changer of a transformer during reverse power flow includes determining a loss ratio factor using voltage and current values for each of a primary side and a secondary side of a transformer. Further, the method comprises determining a relative strength of a first source connected to the primary side and a second source connected to the secondary side of the transformer based on the loss ratio factor. Thereafter, transmitting a control signal to an on-load tap changer of the transformer to regulate voltage on the primary side or on the secondary side of the transformer based on the relative strength of the first source and the second source.
-
Patent Agency Ranking
公开(公告)号：US20230400499A1
公开(公告)日：2023-12-14
申请号：US18450592
申请日：2023-08-16
Applicant: ABB Schweiz AG
Inventor： Simi Valsan , Apala Ray , Ketan Kulkarni , Arinjai Gupta
CPC classification number: G01R31/086 , H02H3/28
Abstract: A system and method for detecting location of fault in a cable receives disturbance data from first and second protection relays when one of the first protection relay and/or the second protection relay detects a fault in a section of the cable. The system extracts voltage and current data for each segment in the section using the disturbance data, cable parameters and length of each segment, and determines a fitness value for each segment in the section using the extracted voltage and current data. The system identifies a segment with a lowest fitness value from the fitness value determined for each segment in the section by comparing the fitness value of each segment with the fitness value of subsequent segments in the section and detects the segment with the lowest fitness value as fault location in the cable.
-
4.发明授权公开(公告)号：US11656280B2
公开(公告)日：2023-05-23
申请号：US17050850
申请日：2019-05-30
Applicant: ABB Schweiz AG
Inventor： Simi Valsan , Arinjai Gupta
CPC classification number: G01R31/343 , G01R15/181 , G01R19/0092 , G01R23/15 , H02H5/10 , H02H7/08
Abstract: The present disclosure discloses a device and a method for condition monitoring and protection of rotating electrical motors. The device receives measurements of current flowing in a power line connected to the rotating electrical machine. The device extracts a frequency band content containing information representative of condition of rotor bar from the measured current signal using wavelet filters. Further, the device compares the frequency band contents with a predefined threshold value and identifies a condition of the rotor bars. The condition includes damages caused to the rotor bars. Based on the condition, the IED generates one or more status signals (alarm signals or trip signals). The trip signal is provided to a switch connected to the power line to disconnect the rotating electrical machine.
-
公开(公告)号：US12292466B2
公开(公告)日：2025-05-06
申请号：US18450592
申请日：2023-08-16
Applicant: ABB Schweiz AG
Inventor： Simi Valsan , Apala Ray , Ketan Kulkarni , Arinjai Gupta
Abstract: A system and method for detecting location of fault in a cable receives disturbance data from first and second protection relays when one of the first protection relay and/or the second protection relay detects a fault in a section of the cable. The system extracts voltage and current data for each segment in the section using the disturbance data, cable parameters and length of each segment, and determines a fitness value for each segment in the section using the extracted voltage and current data. The system identifies a segment with a lowest fitness value from the fitness value determined for each segment in the section by comparing the fitness value of each segment with the fitness value of subsequent segments in the section and detects the segment with the lowest fitness value as fault location in the cable.
-
公开(公告)号：US11836036B2
公开(公告)日：2023-12-05
申请号：US17439020
申请日：2020-03-09
Applicant: ABB Schweiz AG
Inventor： Abhilash Gopalakrishnan , Jithin Kizhakey Putanvetil , Manigandan P , Arinjai Gupta , Martin Nykvist
IPC: G06F11/00 , G06F11/07 , G06F11/30 , G06F18/2415
CPC classification number: G06F11/079 , G06F11/0772 , G06F11/3006 , G06F18/24155
Abstract: A method for detecting a fault in an intelligent electronic device that includes components uses a Bayesian network. The method includes detecting a failure event in the components, obtaining a first list of cause of failures in the component using a fault tree model, computing probability of the cause of failures to obtain a second list of probable causes of failure by monitoring of information about the elements identified in the first list, identifying a root cause of failure associated with the element comprised in the component using the Bayesian network based on the second list, and initiating a function. The function may be one of restarting the element having the root cause of failure, a filtering operation for input data provided to that element; and providing an alert in the human machine interface associated with the intelligent electronic device.
-
公开(公告)号：US20220147410A1
公开(公告)日：2022-05-12
申请号：US17439020
申请日：2020-03-09
Applicant: ABB Schweiz AG
Inventor： Abhilash Gopalakrishnan , Jithin Kizhakey Putanvetil , Manigandan P , Arinjai Gupta , Martin Nykvist
Abstract: A method for detecting a fault in an intelligent electronic device that includes components uses a Bayesian network. The method includes detecting a failure event in the components, obtaining a first list of cause of failures in the component using a fault tree model, computing probability of the cause of failures to obtain a second list of probable causes of failure by monitoring of information about the elements identified in the first list, identifying a root cause of failure associated with the element comprised in the component using the Bayesian network based on the second list, and initiating a function. The function may be one of restarting the element having the root cause of failure, a filtering operation for input data provided to that element; and providing an alert in the human machine interface associated with the intelligent electronic device.
-
-
-
-
-
-
Search Results
7
records
(took 0.013 seconds)
