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公开(公告)号：US12087524B2
公开(公告)日：2024-09-10
申请号：US17770210
申请日：2020-10-27
CPC分类号： H01H33/6606 , G01R15/06 , G01R31/58
摘要： A circuit breaker includes a capacitive voltage sensor located within its insulating casing. The voltage sensor includes a capacitor located between the terminals of the circuit breaker adjacent a low potential surface provided by a coil of a current sensor. The capacitor is dome shaped. The voltage sensor does not appreciably increase the size or weight of the circuit breaker and is reliable and accurate.
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公开(公告)号：US20240288511A1
公开(公告)日：2024-08-29
申请号：US18566116
申请日：2022-05-16
发明人： Satoru SAKURAZAWA , Masato IZAWA , Isao KATO , Takumi ASAINA , Shota SHIMIZU , Kanata NISHIDA
摘要： A detection apparatus according to the present disclosure includes a signal output unit configured to output a measurement signal that includes a component having a first frequency to a transmission line, a signal measurement unit configured to measure a response signal, from the transmission line, to the measurement signal output from the signal output unit and a processing unit configured to generate a difference signal that is a difference between the response signal measured by the signal measurement unit and a reference signal that is based on the measurement signal, calculate an index value that indicates a strength of a correlation between the reference signal and the difference signal, and detect an abnormality in the transmission line on the basis of the calculated index value.
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3.发明授权公开(公告)号：US12066498B2
公开(公告)日：2024-08-20
申请号：US15950423
申请日：2018-04-11
发明人： Wiebke Froehner , Ivana Mladenovic , Thomas Werner
CPC分类号： G01R31/50 , G01R25/005 , G01R27/26 , G01R31/58 , G01R27/04
摘要： A method identifies a diagnosis variable which indicates an aging state of an operating device in an electrical energy supply network. In the method, first measurement values of at least one measurement variable are detected at a first measuring point of the operating device. Then simultaneously second measurement values of the at least one measurement variable are detected at a second measuring point of the operating device. The diagnosis variable is identified using respective simultaneously detected first and second measurement values. It is proposed that the first and second measurement values are detected in a time-controlled manner in such a way that a signal of the at least one measurement variable is sampled at a prescribed sampling rate at set times and over a set measurement duration so as to generate time profiles of the first and second measurement values.
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公开(公告)号：US12061217B2
公开(公告)日：2024-08-13
申请号：US18071415
申请日：2022-11-29
发明人： Ian B. Vabnick , Michael Malone
IPC分类号： G01R19/165 , G01R31/54 , G01R31/58 , G01R31/327
CPC分类号： G01R19/16504 , G01R19/16528 , G01R31/54 , G01R31/58 , G01R31/3277
摘要： Circuit test devices and methods are provided. The method includes measuring a voltage between first and second conductor points (CPs) of a circuit under test (CUT), and determining if the measured voltage is less than a low voltage threshold value (LVTV) indicative of electrical continuity (EC) between the first and second CPs. In response to determining that the measured voltage is less than the LVTV, the method includes: transmitting a test signal (TS) to the first or second CP, and determining if the test signal is received after being transmitted. In response to determining that the TS is received, a presence of EC between the first and second conductor points is reported, and in response to determining that the TS is not received, absence of EC between the first and second CPs, or a lack of electrical contact between the VMC and the first and/or second CP(s), is reported.
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公开(公告)号：US20240255586A1
公开(公告)日：2024-08-01
申请号：US18424012
申请日：2024-01-26
申请人： Knowix, LLC
发明人： Luis Padilla
CPC分类号： G01R31/58 , G01R31/088
摘要： Disclosed herein are systems, methods, and computer-readable media for cable analysis and monitoring systems. In one aspect, the method includes obtaining from a plurality of sensors sensor data that includes a plurality of sensor measurements associated with a cable. In one aspect, the method includes storing the sensor data in a database. Each respective sensor measurement of the plurality of sensor measurements is associated with a group identifier included in a set of group identifiers. In one aspect, the method includes retrieving for each selected type of one or more selected types of sensor measurements, a set of time series sensor measurements of the selected type. In one aspect, the method includes determining based on the sets of time series sensor measurements one or more warning events associated with the cable. In one aspect, the method includes automatically generating one or more remediation actions for remediating the warning event.
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6.发明公开公开(公告)号：US20240248125A1
公开(公告)日：2024-07-25
申请号：US18016924
申请日：2022-08-22
发明人： Zhifang Li
CPC分类号： G01R27/16 , G01R27/08 , G01R31/58 , H02J7/00034 , H02J7/0047 , H02J7/00712 , H02J2207/30
摘要： This application relates to the field of charging management, and provides a method for detecting impedance of a charging cable, an electronic device, and a power supply device, to more accurately detect impedance of a charging cable. Calculating, by the electronic device, an impedance value of the charging cable according to a first source voltage detection value, a second source voltage detection value, a first final voltage detection value, a second final voltage detection value, a first current value, and a second current value.
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公开(公告)号：US12044596B2
公开(公告)日：2024-07-23
申请号：US17440109
申请日：2020-03-24
申请人： Robert Bosch GmbH
CPC分类号： G01M15/104 , G01N27/4163 , G01R31/58 , H02H3/00 , H02H3/023 , H02H3/20
摘要： An evaluation and control unit for operating a wideband lambda sensor that has at least two electrical lines, the evaluation and control unit having at least two electrical terminals for electrical connection to the electrical lines of the wideband lambda sensor. Each of the electrical terminals has assigned to it a respective electrical switch via which each terminal is capable of being individually connected to at least one defined electrical potential. Each switch is voltage-resistant against the maximum short-circuit voltage that is to be expected at the respective terminal in case of fault. In addition, a method is described for the line-specific short-circuit diagnosis of the wideband lambda sensor (pinpointing).
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公开(公告)号：US20240212885A1
公开(公告)日：2024-06-27
申请号：US18561551
申请日：2022-04-25
IPC分类号： H01B13/012 , G01R31/58 , H01B7/00 , H01B7/28
CPC分类号： H01B13/01209 , G01R31/58 , H01B7/0045 , H01B7/2813
摘要： The present disclosure provides an insulation withstand voltage detection method and detection device for a wiring harness, and an automobile wiring harness assembly line. The insulation withstand voltage detection method for the wiring harness includes: step S10: placing a to-be-detected wiring harness in an enclosed cavity, in which a conductive electrode plate is disposed in the enclosed cavity, and the to-be-detected wiring harness has one end insulated and enclosed, and the other end connected to a power supply; step S20: reducing air pressure in the enclosed cavity; step S30: providing a test voltage by the power supply; and step S40: detecting a voltage of the to-be-detected wiring harness, and/or detecting a leakage current of the to-be-detected wiring harness. Through the present disclosure, it alleviates the technical problem in the prior art that the dielectric insulation detection of a high-voltage wiring harness cannot realize the in-line detection of finished products.
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公开(公告)号：US11965924B2
公开(公告)日：2024-04-23
申请号：US18227670
申请日：2023-07-28
申请人： Robert B. Stuart
发明人： Robert B. Stuart
CPC分类号： G01R31/086 , G01R31/088 , G01R31/52 , H02H1/0007 , G01R31/58 , H02H7/26
摘要： A method for preventing ground fault in a three-phase electric transmission line system caused by a line break, includes: providing a programmable relay protection system, including a plurality of relay devices on each line, programmed to include: monitoring of acceptable preset parameter ranges of at least three pairs electric operating conditions, that include at least one high sensitivity instantaneous undercurrent and at least one high sensitivity condition selected from line differential overcurrent and negative sequence instantaneous overcurrent, zero sequence instantaneous overcurrent, and change in instantaneous undercurrent (and combinations thereof); permitting closed circuit operation when all of the lines show that the operating conditions are within the preset acceptable ranges; tripping a circuit breaker on a broken line when that line shows two operating conditions outside the preset parameter ranges; and shutting down power to the broken line before it otherwise causes a ground fault or other short circuit.
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公开(公告)号：US11919050B2
公开(公告)日：2024-03-05
申请号：US17114775
申请日：2020-12-08
发明人： Linus Weberbeck , Manuel Kagerhuber
CPC分类号： B08B5/02 , B08B5/04 , B08B13/00 , G01R31/58 , G02B27/0006
摘要： The disclosure relates to a test system for optically checking an electrical line, including a test area for arranging the electric line; a plurality of prisms surrounding the test area; a camera directed at the prisms, which is designed to optically detect the electric line arranged in the test area through the prisms from different sides; a shielding mechanism, the curved inner contour of which encloses the test area and the prisms at least in the radial direction; an air duct, which is at least indirectly connected to a nozzle directed towards the test area and which is designed to apply a cleaning air stream to at least some prism surfaces facing the test area and thereby to entrain dirt particles present on these prism surfaces; and further air ducts opening into an area of the inner contour of the shielding.
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