Transformer (e.g., Split Core Admits Conductor Carrying Unknown Current) Patents (Class 324/127)
  • Patent number: 11418132
    Abstract: The various embodiments herein provide an energy harvester which can capacitively harvest stray electric field from low-voltage AC power lines without a physical grounding connection. The energy harvester comprises an inner electrode, an outer electrode and a circuit. The inner electrode forms an inner periphery of an upper portion of a harvester housing. The outer electrode forms an inner base of a lower portion of the harvester housing to provide a local ground reference. The circuit is housed within the lower portion of the harvester housing to direct stored energy and control an energy discharge.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: August 16, 2022
    Inventors: Manoj Gulati, Shwetak N. Patel
  • Patent number: 11385262
    Abstract: A measuring shunt includes a resistance element and a magnetic core. The resistance element includes two main contacts and a middle section extending between the main contacts for conducting an electrical current between the two main contacts through the middle section. The magnetic core extends in an annular manner around the middle section of the resistance element.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: July 12, 2022
    Assignee: Siemens Aktiengesellschaft
    Inventor: Roland Lorz
  • Patent number: 11381122
    Abstract: The disclosure relates to methods for detecting a plug-in operation of a charging connector in a charging socket of an electrically drivable vehicle, wherein the charging connector has a control signal line for transmitting control signals between the electrically drivable vehicle and a charging station, including: detecting an amplitude change of a control signal on the control signal line in order to detect the plug-in operation.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: July 5, 2022
    Assignee: Phoenix Contact E-Mobility GmbH
    Inventors: Christian Sander, Ulrich Wasmuth, Marco Seelig
  • Patent number: 11346864
    Abstract: A flexible sensor configured to detect a physical amount of a measurement target in a state surrounding the measurement target includes a sensor cable configured to detect the physical amount of the measurement target and a holding portion on which a base end portion of the sensor cable is mounted, the holding portion having a groove portion in which a distal end portion of the sensor cable is fitted from a side surface.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: May 31, 2022
    Assignee: HIOKI E.E. Corporation
    Inventors: Atsushi Nomura, Yutaka Ashida, Shunsuke Suzuki
  • Patent number: 11333559
    Abstract: Described is an electrical grid sensor comprising: a housing having a bottom surface and a top surface and a ring extending from and integrated with the top surface, the ring sized to accommodate a universal hook end of a standard utility hot-stick tool by way of an aperture defined by the ring. The sensor further comprising a temperature sensor inside of the housing and in communication with the bottom surface and adapted to measure a temperature at the bottom surface when energized. A magnetized element at the bottom surface is adapted to magnetically fix the bottom surface to an iron-based transformer housing. The sensor further providing a wireline extending from the temperature sensor, the wireline adapted to connect to a data consumer transmitter. The sensor is configured and arranged to be manipulated and deployed by a hot stick tool when used with a hot stick at a safe distance from high-voltage electrical grid component.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: May 17, 2022
    Assignee: Inertia Engineering and Machine Works, Inc.
    Inventor: Dean Carnell Sanders
  • Patent number: 11333684
    Abstract: A cable clamp system comprises a base assembly defining a base notch defining a notch axis and a carriage assembly defining a drive axis. The drive axis is substantially orthogonal to the notch axis.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: May 17, 2022
    Assignee: SENSORLINK CORPORATION
    Inventor: Kelly R. Hefelfinger
  • Patent number: 11300593
    Abstract: A semiconductor component 150 has a semiconductor layer 1 including a winding wire part 10 and a winding return wire part 50 connected at a terminal end part of the winding wire part 10 and returning from the terminal end part toward a starting end part side, wherein the semiconductor component is disposed so as to surround an object to be measured.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: April 12, 2022
    Assignee: SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Kenichi Suzuki, Kazuyuki Sashida, Mizue Yamaji, Kenichi Yoshida, Shinji Kunori
  • Patent number: 11303266
    Abstract: An electronic circuit according to the embodiment of the present invention includes a first circuit, a second circuit electrically insulated from the first circuit, and a transmitter transmitting a signal between the first and the second circuits. The first circuit receives an input signal, generates a first reference signal, and converts frequencies of the input signal and the first reference signal. The transmitter transmits the frequency-converted input signal and first reference signal to the second circuit. The second circuit converts the frequencies of the transmitted input signal first reference signal to obtain a restored input signal and a restored first reference signal, generates a second reference signal, calculates a gain to be adjusted of the restored input signal based on the restored first reference signal and the second reference signal to adjust the gain of the restored input signal.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: April 12, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki Ishihara, Satoshi Takaya
  • Patent number: 11268989
    Abstract: A dual feeder circuit system for supplying electrical power can include one or more feeder groups, each feeder having a first wire and a second wire connected between a source terminal and a load terminal to carry the same electrical signal on both wires. The system can include one or more current transformers disposed on one or more of the feeders groups such that the current transformer is disposed around both the first wire and the second wire. The first wire can be passed directly through a first side of the current transformer to allow current to travel through the current transformer in a first direction, and the second wire can include a loop and be passed through a second side of the current transformer to allow current to travel through the current transformer in an second direction opposite the first direction.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: March 8, 2022
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Ernest Thompson, Dwight D. Schmitt, Jef William Good
  • Patent number: 11268987
    Abstract: A circuit interrupter including a busbar, a Rogowski coil disposed around the busbar and structured to sense current having a first frequency flowing through the busbar, a test injector circuit structured to input a test signal having a second frequency to the Rogowski coil, high or band pass filter circuitry structured to receive an output of the Rogowski coil, the output including a first component having the first frequency and being proportional to the current through the busbar and a second component having the second frequency and being proportional to a temperature of the Rogowski coil, and to attenuate the first component of the Rogowski coil output, and an electronic trip unit including a temperature measurement unit structured to receive an output of the high or band pass filter circuitry and to estimate the temperature of the busbar based on the output of the high or band pass filter circuitry.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: March 8, 2022
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Leonardo E. Bernal, Daniel A. Hosko, John E. Downs, Theodore J. Miller
  • Patent number: 11249111
    Abstract: A test system can include a probe suitable to be coupled between a test measurement device and a device under test (DUT). The probe can include a signal input to receive an active signal from the DUT and a signal output to provide the active signal to the test measurement device. The probe can also include an input ground to connect to the DUT ground and an output ground to connect to the test measurement device ground. A probe ground connection checking device can automatically determine whether the probe ground connections to the DUT ground and test measurement device ground are solid.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: February 15, 2022
    Assignee: Tektronix, Inc.
    Inventors: Daniel G. Knierim, William A. Hagerup, Barton T. Hickman, Ira G. Pollock
  • Patent number: 11215643
    Abstract: A clamped object is reliably clamped. A clamp sensor includes a pair of clamp arms that are formed so as to be substantially arc-shaped in plan view, that are configured so that at least one of the clamp arms is rotatable so that respective front ends of the clamp arms open and close, and that form a ring-shaped body in a state where the front ends are closed. Front end portions of the clamp arms have a pair of facing surfaces that construct the outer circumferential surface and the inner circumferential surface of the ring-shaped body, a pair of facing surfaces that construct two side surfaces of the ring-shaped body, a pair of facing surfaces that are inclined to the facing surfaces, and a pair of facing surfaces that are inclined to the facing surfaces.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: January 4, 2022
    Assignee: HIOKI E.E. CORPORATION
    Inventors: Kentaro Nakajima, Tetsuya Nakamura, Takeaki Miyazawa, Yusuke Abe
  • Patent number: 11171447
    Abstract: Plug and socket assemblies that operatively associate with a safety locking mechanism to enable plugging and unplugging ceiling and wall electrical fixtures safely and conveniently.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: November 9, 2021
    Inventor: Yosef Bitton
  • Patent number: 11169198
    Abstract: The invention relates to a magnetic field measuring device and a method for detecting a localization current in a branched AC power supply system. Furthermore, the invention relates to a use of the magnetic field measuring device according to the invention as a device for detecting a test current for an insulation fault localization system. By combining two current sensors having a different magnetic field measuring sensitivity and a different magnetic field measuring range, it can be achieved that a reliable detection of localization currents in insulation fault localization systems is possible by means of a constructionally easy and cost-effective realization, in particular as retrofitting in existing systems.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 9, 2021
    Assignee: BENDER GMBH & CO. KG
    Inventor: Dieter Hackl
  • Patent number: 11169186
    Abstract: A heat-resistance element includes: a heat-resistant substrate including a ceramic material; one or more power wires embedded in the heat-resistant substrate; and a coil structure that is configured by a coil wire extending between start and end points and includes coil segments. The coil segment includes or corresponds to one winding of the coil wire. The coil segment includes: a first conductor extending along the power wire; a second conductor arranged farther from the one or more power wires than the first conductor, the second conductor extending along the power wire; a first connection wire coupling the first and second conductors in the same coil segment; and a second connection wire coupling first and second conductors of adjacent coil segments in the circumferential direction, all of which are embedded in the heat-resistant substrate, and at least the first conductor and the second conductor are not exposed from the heat-resistant substrate.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: November 9, 2021
    Assignee: NGK Insulators, Ltd.
    Inventor: Toshikatsu Kashiwaya
  • Patent number: 11172273
    Abstract: A transformer monitor, communication and data collection device features a signal processor configured to receive signaling containing information about collected data, including some combination of electrical signaling data related to electrical signaling being processed by a transformer located and arranged in a grid network and to which the apparatus is mounted, metered data related to associated electrical signaling being provided from the transformer to a building or structure in the grid network, and other wireless network data related to other wireless network communication devices/nodes/end points deployed in the grid network; and determine corresponding signaling containing information about collected data for transmitting back to a central location or other connection device for further processing, based upon the signaling received.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: November 9, 2021
    Assignee: DELTA ENERGY & COMMUNICATIONS, INC.
    Inventors: Scott Foster, Angelo Borrelli, Keith Teichmann
  • Patent number: 11156641
    Abstract: A power distribution network monitoring system includes a CT sensor and a power management device. The CT sensor includes a measurement component and a transmitter. The measurement component is installed at a plurality of predetermined positions along a power line constituting the power distribution network, and measures current of the power line at each predetermined position. The transmitter wirelessly transmits, as transmission data, the power spectrums of the fundamental wave, third harmonic, and fifth harmonic, as well as the effective current values used to detect abnormalities in the power distribution network, the data being at least part of the data measured by the measurement components. The power management device includes a receiver and a management database. The receiver receives the transmission data. The management database stores the received data.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: October 26, 2021
    Assignee: Omron Corporation
    Inventors: Hiroaki Takeya, Tatsuya Adachi
  • Patent number: 11150276
    Abstract: Provided is a current detection device including: a first board; a second board provided above the first board in parallel to the first board; a magnetic measurement element provided between the first board and the second board; a first coil having at least one of a first wire provided on the first board or a second wire provided on the second board and having a first connection conductor connected to the first wire provided on the first board or the second wire provided on the second board; and a second coil having at least one of a third wire provided on the first board or a fourth wire provided on the second board and having a second connection conductor connected to the third wire provided on the first board or the fourth wire provided on the second board, the second coil being connected to the first coil such that magnetic fields generated in the first coil and the second coil by a current for electrically conducting the first coil and the second coil have the same direction.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: October 19, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Jia Liu, Toshihiro Tsujimura
  • Patent number: 11137427
    Abstract: A method for verifying the wiring of an electrical energy meter, the meter comprising an upstream phase terminal, a downstream phase terminal and a cut-off member mounted between the upstream phase terminal and the downstream phase terminal, the verification method comprising the steps of: opening the cut-off member; measuring an upstream phase voltage upstream from the cut-off member and a downstream phase voltage downstream from the cut-off member; detecting, particularly according to a measurement of the upstream phase voltage and a measurement of the downstream phase voltage, a possible wiring error; if a wiring error is detected, generating and alert; if no wiring error is detected, closing the cut-off member and putting the meter in a nominal operating mode.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: October 5, 2021
    Assignee: SAGEMCOM ENERGY & TELECOM SAS
    Inventors: Henri Teboulle, Paolo Moro
  • Patent number: 11118951
    Abstract: Compact ultrasonic flowmeter for measuring flowrate and other fluid related data, comprising: a flow tube with a flow bore for passage of the fluid between an inlet and an outlet; a flowmeter housing associated with the flow tube; a printed circuit board arranged in the flowmeter housing and including a processor for controlling operations of the flowmeter; a meter circuit including two or more ultrasonic transducers provided on the printed circuit board and configured for operating the ultrasonic transducers to transmit and receive ultrasonic wave packets through the fluid; a display mounted on the printed circuit board and configured for displaying a measured flowrate and other fluid related data; and one or more battery packs for powering flowmeter operations including at least the processor and the meter circuit and the display; wherein the processor and the ultrasonic transducers are surface mounted on a lower side of the printed circuit board and the display is mounted on an upper side of the printed ci
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: September 14, 2021
    Assignee: Kamstrup A/S
    Inventors: Lasse Pilegaard, Anders Hedegaard, Kaspar Raahede Aarøe
  • Patent number: 11081971
    Abstract: An AC/DC power converter includes input terminals, output terminals, a power factor correction circuit coupled between the input and output terminals and including at least one power switch defining a switched current path, and a current transformer including a primary winding and a secondary winding. The primary winding is coupled in series with the switched current path. The power converter also includes a first sense switch coupled with a first end of the secondary winding, a second sense switch coupled with a second end of the secondary winding, and a control circuit. The control circuit is configured to turn on the first sense switch and turn off the second sense switch during a positive polarity of the AC voltage input, and to turn off the first sense switch and turn on the second sense switch during a negative polarity of the AC voltage input.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: August 3, 2021
    Assignee: Astec International Limited
    Inventors: Rahul Vinaykumar Davare, Todd Martin Schaible
  • Patent number: 11067641
    Abstract: Systems and methods provide for display of a deficiency indicator in response detection of a defined deficiency in an electric signal in an insulated wire. Measurement systems may include a housing sized and shaped to be held in a hand, a set of sensors for sensing a set of electrical characteristics of the electric signal, one or more processors, and a display provided on a surface of the housing. The measurement system may obtain measurements from the set of sensors and detect a presence of the defined deficiency based on the set of measurements. In response to detecting the presence of the defined deficiency, the measurement system may display a deficiency indicator that is representative of the defined deficiency detected.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: July 20, 2021
    Assignee: Fluke Corporation
    Inventor: Erik Johan Gervedink Nijhuis
  • Patent number: 11054318
    Abstract: A system may include a first injection electrode, a second injection electrode, a first sensing coil, and a second sensing coil. The first injection electrode and the second electrode may each be configured to contact a material and conduct an alternating current through a portion of the material. The first sensing coil and a second sensing coil may each be configured to inductively sense a Hall current created by the alternating current and a magnetic field perpendicular to the alternating current. The first sensing coil and the second sensing coil may be coupled in series.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 6, 2021
    Assignees: Rolls-Royce Corporation, University of Cincinnati
    Inventors: Waled T. Hassan, Peter B. Nagy
  • Patent number: 11049643
    Abstract: A magnetic connector assembly has two independent magnetic components sharing a common core structure. The magnetic assembly includes first and second bobbins, and includes a magnetic core. The magnetic core includes first and second core halves, each half including a main core body, a first outer leg, a second outer leg, and a middle leg. The first outer leg fits within a passageway of the first bobbin. The second outer leg fits within a passageway of the second bobbin. The middle leg fits between the two bobbins.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 29, 2021
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Donald Folker, Mike LeBlanc
  • Patent number: 11047882
    Abstract: Provided are a non-contact voltage measurement device and diagnosis system capable of acquiring the voltage of an electric wire without disconnecting the wire. The non-contact voltage measurement device (100) includes: a cylindrical fixing part (110) for holding an electric wire (10) by clipping the same from both sides; a first electrode (121) and a second electrode (122) provided on the inner peripheral surface of the electric-wire-holding side of the fixing part (110) so as to be separated by a distance (D2); a first measurement capacitor (C3) and a voltage division capacitor (C2) connected to the first electrode (121); a second measurement capacitor (C3?) connected to the second electrode (122); a terminal (131) for measuring the voltage (V1) applied to the first measurement capacitor (C3); and a terminal (132) for measuring the voltage (V2) applied to the second measurement capacitor (C3?).
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: June 29, 2021
    Assignee: HITACHI, LTD.
    Inventors: Tetsuji Kato, Minori Nagata, Kohji Maki
  • Patent number: 10996245
    Abstract: Fluxgate based current transducer for measuring a primary current flowing in a primary conductor, comprising a fluxgate magnetic field detector and a measuring circuit. The fluxgate magnetic field detector includes an excitation coil driven by an oscillating excitation current (Ifluxgate) supplied by the measuring circuit. The measuring circuit is configured to provide a first and a second measurement output of the oscillating excitation current. The transducer further comprises a signal output processing unit for comparing in real-time the first and second measurements outputs, wherein the signal output processing unit is configured to send an error signal output if the difference between said first and second measurements outputs exceeds a tolerance value.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 4, 2021
    Assignee: LEM International SA
    Inventors: Gauthier Plagne, Jérémie Piro
  • Patent number: 10969409
    Abstract: Miniaturized current sensors are disclosed herein. The miniaturized current sensors may employ a coiled coil and a return coil around the current path to be measured. The miniaturized current sensors may be integrated to microelectronic devices and components.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 6, 2021
    Assignee: General Electric Company
    Inventor: Victor Mario Torres
  • Patent number: 10908188
    Abstract: Systems and methods are provided for measuring electrical parameters in an insulated conductor without requiring a galvanic connection. A sensor probe is provided that includes a body and a flexible arm or strap that is movable between an open position that allows a conductor to be moved into and out of a measurement area of the probe, and a closed position that secures the insulated conductor within the measurement area so that one or more measurements may be obtained. The electrical parameter sensor probe may include a non-contact sensor coupled to at least one of the body or the flexible arm. A user may apply a force to an actuator (e.g., slide switch) which moves the flexible arm from the closed position into the open position against a bias force so that the insulated conductor under test may be positioned and secured in the measurement area of the sensor probe.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 2, 2021
    Assignee: Fluke Corporation
    Inventors: Ferdinand Y. Laurino, Jeffrey Worones
  • Patent number: 10901008
    Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of power line sensing devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, the power line sensors can include a split-core transformer. In some embodiments, a power line sensing device is disposed on each conductor of a three-phase network. The sensing devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of installing, sealing, and protecting the split-core transformers of the power line sensors are also discussed.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: January 26, 2021
    Assignee: Sentient Technology Holdings, LLC
    Inventors: Michael Kast, David P. Knight, Mark A. Parsons, Dennis Allen Saxby
  • Patent number: 10877071
    Abstract: A current sensor includes three bus bars arranged in such a manner to be spaced and aligned in a width direction thereof. A first shield plate and a second shield plate, which are made of a magnetic material, are arranged in such a manner to sandwich the three bus bars therebetween together in a thickness direction perpendicular to the width direction. Three magnetic detection elements are arranged between the three bus bars respectively and the first shield plate to detect a magnetic field strength generated by currents flowing through the corresponding bus bars. A conductive plate is disposed between each of the magnetic detection elements and the first shield plate. The conductive plate is disposed in such a manner to sandwich the three bus bars together between the conductive plate and the second shield plate. The conductive plate is made of a nonmagnetic conductive material.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: December 29, 2020
    Assignee: Hitachi Metals, Ltd.
    Inventors: Ken Okuyama, Katsuya Akimoto, Naoki Futakuchi, Haruyasu Komano, Jun Umetsu, Yujiro Tomita
  • Patent number: 10877073
    Abstract: A Rogowski coil includes: a multilayer printed circuit board having a plurality of layers forming at least an outer top circuit board surface, an outer bottom circuit board surface, an inner top circuit board surface, and an inner bottom circuit board surface; a first winding formed by a plurality of tracks arranged alternately on the outer top circuit board surface and the outer bottom circuit board surface, the plurality of tracks being electrically connected by vias extending from the outer top circuit board surface to the outer bottom circuit board surface; and a second, return winding enveloped by the first winding. The multilayer printed circuit board includes a central passage opening for passage of a current conducting conductor. Axes of the first and second winding are arranged concentric around the central passage opening. The first and second winding are electrically arranged in series.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 29, 2020
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Gerard Cornelis Schoonenberg, Elisabeth Johanna Maria Morskieft, Wilhelmus Hubertus Maria van den Bogaard
  • Patent number: 10868414
    Abstract: A system for monitoring current and voltage from a power source or load at the tap wire connected to an overhead distribution power line, the distribution power line being spaced apart from the ground is provided. The system includes a current clamp sensor coupled to the tap wire and spaced apart from the distribution power line. A sensor is insulated body coupled to the current clamp, the sensor body being configured to simultaneously measure voltage on the overhead distribution power line and current of the tap wire prior to the distribution power line. A mounting assembly is provided that suspends the sensor from the distribution power line, the mounting assembly being coupled between the distribution power line and the current clamp.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: December 15, 2020
    Assignee: CONSOLIDATED EDISON COMPANY OF NEW YORK, INC.
    Inventors: John-Paul Laglenne, Louis R. Colangelo
  • Patent number: 10852362
    Abstract: A transformer monitoring system has one or more monitoring devices coupled to respective distribution transformers, the monitoring devices each comprising a network device and monitors operational data of their respective distribution transformer and performs a monitoring device action based upon the operational data monitored, the monitoring device further transmits data corresponding to the distribution transformers being monitored. The system further has a central computing device communicatively coupled to the monitoring device via the network device and a processor resident on the central computing device that receives the operational data corresponding to the distribution transformers being monitored, interprets the received data, and performs an action based upon the transformer data.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: December 1, 2020
    Assignee: GRID20/20, Inc.
    Inventors: Joseph O. Beaudet, Sergio Angeli
  • Patent number: 10855107
    Abstract: A system and method for determining a reliability line rating for a transmission line is disclosed. In response to a line clearance measurement and a line temperature measurement received from a transmission line monitor coupled to a transmission line, the system generates a temperature-clearance model for the transmission line based on the received line clearance measurement and line temperature measurement. The system generates a plurality of past dynamic line ratings and determines a scaling factor based on the plurality of past dynamic line ratings. The system then generates a dynamic line rating for an interval of time in the future and scales the dynamic line rating in response to the scaling factor to obtain a reliability line rating for the interval.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: December 1, 2020
    Assignee: Lindsey Manufacturing Co.
    Inventors: Ryan Bliss, Keith Lindsey, John McCall
  • Patent number: 10829962
    Abstract: Securing systems and methods of securing a transport container to an attachment point. In one embodiment, the securing system includes an actuator, an attachment structure, and an electronic controller. The attachment structure is dimensioned to complement the actuator. The electronic controller is operably coupled to the actuator for attaching and releasing the actuator to the attachment structure.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: November 10, 2020
    Assignee: MOTOGO, LLC
    Inventors: David Brian Ruth, Yuan-Chang Lo
  • Patent number: 10819100
    Abstract: The carbon monoxide detector and shutoff system is an electrical switching device. The carbon monoxide detector and shutoff system inserts into an electrical connection between the national electric grid and an electrical load. The carbon monoxide detector and shutoff system senses the carbon monoxide concentration within the atmosphere. Should the detected concentration of carbon monoxide exceed a threshold level, the carbon monoxide detector and shutoff system interrupts the circuit between the national electric grid and the electrical load. The carbon monoxide detector and shutoff system comprises a pass-through circuit, a control circuit, and a housing. The housing contains the pass-through circuit and the control circuit. The pass-through circuit inserts a relay between the national electric grid and the electrical load. The control circuit is an electrical circuit that opens and closes the relay in response to the detected concentration of carbon monoxide.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: October 27, 2020
    Inventors: Jose Andrade, Antonio Andrade
  • Patent number: 10775409
    Abstract: Systems and methods for measuring electrical parameters (e.g., voltage, current, power) in an insulated or blank uninsulated conductor (e.g., insulated wire) without requiring a galvanic connection between the conductor and a clamp probe. A clamp probe may include a normally closed, spring loaded jaw having a flexible strap therein that includes one or more non-contact sensors. The jaw may also include a Rogowski coil to enable non-contact current measurements. A user may compress handles of the clamp probe to open its jaw. In the open position, the user may position the jaw around the conductor under test and release the handles. The jaw then closes and tightens the flexible strap around the insulated conductor such that the one or more non-contact sensors are positioned adjacent the insulated conductor to obtain an accurate measurement of an electrical parameter of the insulated conductor.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: September 15, 2020
    Assignee: Fluke Corporation
    Inventor: Jeffrey Worones
  • Patent number: 10705239
    Abstract: Disclosed are systems and methods for marine geophysical surveying. An example system an electromagnetic source configured to emit an energy field into a body of water; a marine data acquisition node comprising: a base having a buoyancy such that the base is configured to float in a body of water; a geophysical sensor coupled to the base; a weight configured to anchor the marine data acquisition node to a water bottom; and a line connected between the weight and the base configured to prevent the base from floating to a surface of the body of water.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: July 7, 2020
    Assignee: PGS Geophysical AS
    Inventor: Andras Robert Juhasz
  • Patent number: 10684313
    Abstract: A device for accurate measurement based on wire diameter includes a clamp and two-space compensators. The clamp includes depressible grip handles to control opening and closing of two measurement sections. Two space compensators are respectively combinable with the two measurement sections. The space compensators each have a side that is recessed to form a first clamping section, such that the first clamping section is combinable with at least two fixing elements, which are each in an arc curved shape having one side recessed to form a second clamping section. The fixing elements are structured such that inside diameters defined by the second clamping sections thereof are reduced one by one in a direction away from the first clamping section. The fixing elements are selectable to have the inside diameter of the second clamping section matching a size of an electric wire to be measured.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: June 16, 2020
    Assignee: HSIANG CHENG ELECTRIC CORP.
    Inventor: Chih-Chieh Lin
  • Patent number: 10677876
    Abstract: Systems and methods for operating and calibrating measurement devices are provided herein. The measurement devices generate reference current signals and sense the reference current signals in a conductor under test, which sensed signals are used to determine a calibration factor or a position of the conductor under test. A calibration system may control a calibration voltage source to selectively output calibration voltages in a calibration conductor. The calibration system may obtain data from the electrical parameter measurement device captured by the electrical parameter measurement device when measuring the calibration conductor. Such data may include one or more reference current measurements, one or more voltage measurements, etc. The calibration system utilizes the obtained measurements to generate calibration data which may be stored on the voltage measurement device for use thereby during subsequent operation.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: June 9, 2020
    Assignee: Fluke Corporation
    Inventors: Christian Karl Schmitzer, Ronald Steuer, Ricardo Rodriguez
  • Patent number: 10670633
    Abstract: A coil that includes an alarm.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: June 2, 2020
    Assignee: Veris Industries, LLC
    Inventor: Martin Cook
  • Patent number: 10670649
    Abstract: A method of bondwire integrity testing a packaged IC includes forcing a pin current or pin voltage level sufficient to forward bias a parasitic diode at a plurality of pins relative to a selected reference pin. The pins are connected to bond pads (BPs) on the IC by a bondwire. The bond pads coupled to a diffusion of a first type that forms the parasitic diode (D) with a region doped the second type coupled to a bondpad wirebonded to the reference pin. The resulting pin voltages or pin currents at measured, and present pin-pin relationships are determined. The present pin-pin relationships are compared to stored pin-pin relationship data for a device design of the IC. Results from the comparing are used to determine whether any present pin-pin relationships are significantly different as compared to the stored pin-pin relationships to identify a bondwire problem for at least one pin.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 2, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ronald Andrew Michallick, Michael Nolan Jervis, David Anthony White
  • Patent number: 10644485
    Abstract: The present invention relates to replacing conductors in a high-voltage power transfer system. The method provides, for example, a method for maintaining sections of electrically conductive phases in a three-phase power conductor line, wherein the three phases are parallel and spaced apart in an ordered sequence. The phases are strung between support structures and supported above the ground. Maintenance work, which include replacement or repair, is performed on sections of the three phases without interrupting a power load in any one of the three phases and without transposing the relative positions of the phases out of their ordered sequence.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: May 5, 2020
    Assignee: Quanta Associates, L.P.
    Inventors: Daniel Neil O'Connell, David Karl Wabnegger, Phillip Howard Quaedvlieg, Robert Wayne Palmer
  • Patent number: 10601466
    Abstract: A sensor for sensing a usage status of an electrical device and its associated method are disclosed. The sensor is disposed at a near-end of a power line of the electrical device. The sensor provided with a magnetic detector, an analog-to-digital converter and a controller. The magnetic detector is close to the power line to detect a magnetic field change around the power line to correspondingly generate an analog signal. The analog-to-digital converter (ADC) is used to receive the analog signal and convert the analog signal to a digital signal. The controller is used to receive the digital signal and generate an indication signal to accordingly learn at least one of statuses of being turned on and turned off the electrical device.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 24, 2020
    Assignee: PROLIFIC TECHNOLOGY INC.
    Inventors: Yun-Guo Li, Ke-Qiang Shen, Yen-Zhi Lin, Jia-Zhang Xu
  • Patent number: 10571528
    Abstract: A magnetic sensor circuit includes a vertical-magnetic-field sensor, a horizontal-magnetic-field sensor, a control circuit controlling a first measurement mode and a second measurement mode through switching, a first feedback circuit configuring a feedback loop of a first operational amplifier, a second feedback circuit configuring a feedback loop of a second operational amplifier, a connecting circuit, and at least any one of a first switch switching an impedance of the first feedback circuit, a second switch switching an impedance of the second feedback circuit, and a third switch switching an impedance of the connecting circuit those which controlled by the control circuit. The magnetic sensor circuit detects magnetic fields in nearly the same two-axial sensitivity without using a magnetic converging plate while reducing an occupation area of the amplifier circuit.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 25, 2020
    Assignee: ABLIC INC.
    Inventor: Tomoki Hikichi
  • Patent number: 10557869
    Abstract: A clamp meter includes a meter body and a clamp jaw assembly mounted to the meter body. The clamp jaw assembly includes a first clamp jaw and a second clamp jaw that are movable in relation to each other between a closed position and an open position. In the closed position, distal ends of the first and second clamp jaws meet to define an enclosed area between the first and second clamp jaws, and in the open position, the distal ends of the first and second clamp jaws separate from each other to define a gap allowing a wire under test to pass therethrough. The clamp meter further includes a locking slider positioned within a slot inside the meter body. A switch assembly moves the locking slider longitudinally within the slot between locked and unlocked positions. In the locked position, the locking slider blocks the first clamp jaw from movement.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: February 11, 2020
    Assignee: Fluke Corporation
    Inventors: Fang Li, Jinbo He, Chris Lagerberg
  • Patent number: 10557872
    Abstract: In a measuring arrangement (1) for contactless electric current measurement, it is provided to detect a common signal of a measuring coil arrangement (2) and a compensating coil arrangement (3) by a first detection device (4) and to detect a signal from at least one measuring coil (6, 7) of the measuring coil arrangement (2) separately therefrom by a second detection device (5, 23).
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 11, 2020
    Assignee: Testo AG
    Inventors: Dirk Gopfert, Nebojsa Nesovic, Jorg Volger
  • Patent number: 10559239
    Abstract: Disclosed is a panel testing device. The panel testing device includes: a supporter and a plurality of test pins disposed on the supporter, wherein the plurality of test pins are in one-to-one correspondence with a plurality of signal pins on the tested panel, any one of the test pins satisfies d?D?d+L; wherein D is a width of the test pin, d is a width of the signal pin corresponding to the test pin, L is a minimum pitch between two adjacent signal pins.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: February 11, 2020
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Yu Ai, Xuewu Xie, Bowen Liu, Shi Sun, Hao Liu, Kun Han, Ameng Zhang
  • Patent number: 10551415
    Abstract: The present disclosure relates to systems and methods of locking a faulted circuit indicator (FCI). For example, the FCI may include a locking assembly. The locking assembly may include a lock plate that selectively moves between a locked position and an unlocked position. When in the locked position, the lock plate blocks a lock link of the FCI from moving in a first direction to prevent the FCI from opening. When in an unlocked position, the lock plate enables the lock link of the FCI to move in the first direction to allow the FCI to open.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: February 4, 2020
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Eric Ryan, Mark A. Thomas, Mark F. Witczak
  • Patent number: 10545178
    Abstract: A current sensor provided with an electrical coil (5) made in the form of a printed circuit. Its closed contour is inscribed within a rectangle delimiting a through window (9) for passing a primary conductor (2). It comprises four rectilinear segments (TR) connected two by two by a circular sector (SC), delimited by an interior arc (10) and an exterior arc (11). It comprises, in its circular sectors (SC), additional turns (13), which extend from exterior arc (11) towards an intermediate arc (14) located between interior arc (10) and exterior arc (11). They are inserted between the main turns (12) in such a way that the spacing between two consecutive turns (12, 13) on the exterior arc (11) is equal to spacing (P) of the main turns (12) in rectilinear segments (TR) and that the average turns density is almost constant in electrical coil (5).
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: January 28, 2020
    Assignee: SOCOMEC
    Inventor: Christian Kern