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1.发明申请公开(公告)号：US20170148300A1
公开(公告)日：2017-05-25
申请号：US15353749
申请日：2016-11-17
Applicant: ABB Schweiz AG
Inventor： Marcel Stupak , Tomas Kozel , Massimo Scarpellini , Stefano Magoni
CPC classification number: G08B21/182 , G01K13/00 , G01N25/72 , G01R31/3274 , G01R31/3275 , H02B1/04 , H02B1/06 , H02B1/20 , H02B1/24 , H02B11/12 , H02B13/025 , H02B13/035 , H02B13/065
Abstract: A method for loose joint detection in medium voltage switchgears with busbar joints, circuit breaker upper and lower spouts, and cable connection joints, arranged in an air insulated housing, and medium voltage switchgear itself, in order to create an effective loose joint detection with lower operating expense, but with high performance and accuracy, involves measuring actual temperatures at a first phase as a first temperature (T1), at a second phase as a second temperature (T2), at a third phase as a third temperature (T3), at predefined critical points, such as at the busbar joints, and/or at the circuit breaker upper spouts, and/or at the circuit breaker lower spouts, and/or the cable connection; and comparing temperatures in a logical dependency Ti>(Tj+dT), with i≠j, permuted with i from 1, 2, 3, and j from 1, 2, 3, and setting the alarm if the logical dependency is fulfilled.
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2.发明授权公开(公告)号：US10741051B2
公开(公告)日：2020-08-11
申请号：US15353750
申请日：2016-11-17
Applicant: ABB Schweiz AG
Inventor： Marcel Stupak , Tomas Kozel , Massimo Scarpellini , Stefano Magoni
IPC: G01N25/72 , G08B21/18 , H02B13/065 , G01K13/00 , G01R31/327 , H02B1/04 , H02B1/20 , H02B1/24 , H02B1/06 , H02B13/025 , H02B13/035 , H02B11/12
Abstract: A method for loose joint detection in medium voltage switchgears with busbar joints, circuit breaker upper and lower spouts, and cable connection joints, arranged in an air insulated housing, and medium voltage switchgear itself, in order to create an effective loose joint detection with lower operating expense, but with high performance and accuracy, involves measuring actual temperatures at a first phase as a first temperature (T1), at a second phase as a second temperature (T2), at a third phase as a third temperature (T3), at predefined critical points, such as at the busbar joints, and/or at the circuit breaker upper spouts, and/or at the circuit breaker lower spouts, and/or the cable connection; and comparing temperatures in a logical dependency Ti>(Tj+dT), with i≠j, permuted with i from 1, 2, 3, and j from 1, 2, 3, and setting the alarm if the logical dependency is fulfilled.
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Patent Agency Ranking
公开(公告)号：US20220114519A1
公开(公告)日：2022-04-14
申请号：US17560921
申请日：2021-12-23
Applicant: ABB Schweiz AG
Inventor： Kai Hencken , Massimo Scarpellini , Marco Testa
Abstract: A method for device monitoring includes: providing a plurality of fleet measurement data for at least one device, where the plurality of fleet measurement data includes a number of fleet device data measurements “Nfleet;” providing a plurality of device measurement data for a monitored device, where the plurality of device measurement data includes a number of monitor device data measurements “Ndata;” determining a fleet distribution “Fdist” determined as a distribution of differences between consecutive measurements of the plurality of fleet measurement data; determining a device distribution “Ddist” determined as a distribution of differences between consecutive measurements of the device measurement data; determining an effective number of data measurements “Neff” and determining a probability of failure of the monitored device, the determining including utilising the fleet distribution “Fdist,” the device distribution “Ddist,” the number of monitor device data measurements “Ndata,” and the effective number of data measurements “Neff.”
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公开(公告)号：US10295598B2
公开(公告)日：2019-05-21
申请号：US15561478
申请日：2016-03-04
Applicant: ABB Schweiz AG
Inventor： Stefano Magoni , Massimo Scarpellini , Alessandro Oprandi
IPC: G01R31/34 , H02P29/024 , H01H71/70
Abstract: A method is provided for determining the operating status of a spring charging motor of a LV or MV switching apparatus. The method includes acquiring a detection signal (ID) indicative of the behavior of a driving current (IMOT); processing the detection signal (ID) to calculate a steady-state detection signal (IDSS) indicative of the behavior of the driving current (IMOT) during a steady-state time interval (TSS); processing the steady-state detection signal (IDSS) to calculate data (DS) indicative of HF and LF spectral components of the driving current (IMOT); processing the data (DS) to calculate first and second harmonic distortion values (THDLF, THDHF); processing the first and second harmonic distortion values to calculate first and second output data (O1, O2), which are indicative of the variations of the first and second harmonic distortion values with respect to corresponding first and second reference values, respectively.
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5.发明申请公开(公告)号：US20170146471A1
公开(公告)日：2017-05-25
申请号：US15353750
申请日：2016-11-17
Applicant: ABB Schweiz AG
Inventor： Marcel Stupak , Tomas Kozel , Massimo Scarpellini , Stefano Magoni
IPC: G01N25/72 , H02B1/24 , H02B13/025 , H02B13/035 , H02B1/20 , H02B1/06
Abstract: A method for loose joint detection in medium voltage switchgears with busbar joints, circuit breaker upper and lower spouts, and cable connection joints, arranged in an air insulated housing, and medium voltage switchgear itself, in order to create an effective loose joint detection with lower operating expense, but with high performance and accuracy, involves measuring actual temperatures at a first phase as a first temperature (T1), at a second phase as a second temperature (T2), at a third phase as a third temperature (T3), at predefined critical points, such as at the busbar joints, and/or at the circuit breaker upper spouts, and/or at the circuit breaker lower spouts, and/or the cable connection; and comparing temperatures in a logical dependency Ti>(Tj+dT), with i≠j, permuted with i from 1, 2, 3, and j from 1, 2, 3, and setting the alarm if the logical dependency is fulfilled.
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公开(公告)号：US10527652B2
公开(公告)日：2020-01-07
申请号：US15742570
申请日：2016-06-16
Applicant: ABB Schweiz AG
Inventor： Stefano Magoni , Giorgio Magno , Massimo Scarpellini
Abstract: An accessory device for low or medium voltage electric applications includes a casing and electronic means including one or more current sensors for detecting current flowing in an electric cable. The top shell of the casing includes an external recess having a cable seat for accommodating the electric cable in a transversal position with respect to the casing. The cable seat has a cable coupling surface adapted to mechanically couple with the electrical cable. The accessory device includes a holder element mechanically coupleable with the top shell in the external recess. The holder element includes one or more holding surfaces. Each of the holding surfaces is overlapped and mechanically coupled with the electric cable, when the holder element is positioned in the external recess in a corresponding accommodating position that is selectable depending on the size of the electric cable. Each of the holding surfaces, when overlapped and coupled with the electric cable, cooperates with the cable coupling surface to hold the electric cable in a given position with respect to the current sensors.
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公开(公告)号：US20180059188A1
公开(公告)日：2018-03-01
申请号：US15561478
申请日：2016-03-04
Applicant: ABB Schweiz AG
Inventor： Stefano Magoni , Massimo Scarpellini , Alessandro Oprandi
IPC: G01R31/34 , H02P29/024 , H01H71/70
CPC classification number: G01R31/343 , H01H71/70 , H01H2235/01 , H02P29/0241
Abstract: A method for determining the operating status of a spring charging motor of a LV or MV switching apparatus. The method comprise: acquiring a detection signal (ID) indicative of the behavior of a driving current (IMOT), which feeds the spring charging motor during an operation cycle of the spring charging motor; processing the detection signal (ID) to calculate a steady-state detection signal (IDSS) indicative of the behaviour of the driving current (IMOT) during a steady-state time interval (TSS) comprised in the operation cycle of the spring charging motor; processing the steady-state detection signal (IDSS) to calculate data (DS) indicative of HF and LF spectral components of the driving current (IMOT) during the steady-state time interval; processing the data (DS) indicative of the HF and LF spectral components to calculate first and second harmonic distortion values (THDLF, THDHF), which are indicative of the total harmonic distortion of the LF and HF spectral components, respectively; processing the first and second harmonic distortion values to calculate first and second output data (O1, O2), which are indicative of the variations of the first and second harmonic distortion values with respect to corresponding first and second reference values, respectively.
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