Patents Assigned to Schneider Electric USA, Inc.
  • Patent number: 10409273
    Abstract: A method of monitoring power usage of a load includes defining one or more parameters of the load that vary with a mode of operation of the load, receiving measurement data related to the one or more parameters of the load over a first period of time, recording the measurement data, determining a plurality of groups, each group defining a set of measurements in a continuous range of values, each group having a lower threshold value and an upper threshold value, the lower and upper threshold values defined by having less than a minimum threshold number of recorded measurements of the lower and upper threshold values, and associating a mode of operation with each of the plurality of groups.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: September 10, 2019
    Assignee: SCHNEIDER ELECTRIC USA, INC.
    Inventors: John C. Van Gorp, Shawn Edward Balding, Jacques Roland van Campen
  • Patent number: 10396537
    Abstract: The present invention provides for a calculation and pre-setting of even spring compression among the spring hangers of a vertical busway riser, by use of rigid elements in the hanger with the ability to retain the spring compression during construction of the busway, and the ability to release and load the spring hangers only after construction of the riser is completed.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: August 27, 2019
    Assignee: Schneider Electric USA, Inc.
    Inventors: Bret L. Frank, Rodney J. West, Glenn S. O'Nan
  • Patent number: 10393780
    Abstract: A method and an apparatus are provided for monitoring the currents in a load center, and ultrasonically reporting currents to a data aggregator. The monitoring is performed by branch circuit current monitors which are inductive. The data aggregator receives the current reports from the branch circuit current monitors. The data aggregator manages collisions and transmission medium distortions to ensure reliable receipt of the current reports and stores in a storage location that which it learns about the currents drawn.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 27, 2019
    Assignee: SCHNEIDER ELECTRIC USA, INC.
    Inventor: Steven M. Meehleder
  • Publication number: 20190257568
    Abstract: A frost monitor for HVAC&R systems detects efficiency degradations indicative of coil icing or frosting conditions by modeling compressor input power. The model uses temperature and compressor input power parameter measurements to predict expected compressor input power parameter values. Efficiency degradations are detected by comparing compressor power or current as predicted by the model against measured power or current. Deviations of the measured power parameter values from the predicted power parameter values by a predefined threshold reflect efficiency degradations that may be due to ice or frost accumulation on system coils. Such efficiency degradations may then be used to initiate a defrost cycle in the system.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 22, 2019
    Applicant: Schneider Electric USA, Inc.
    Inventors: Paul R. BUDA, Scott R. BROWN
  • Publication number: 20190258237
    Abstract: An HVAC&R monitor detects short-term and long-term system efficiency degradations by modeling either compressor input power or current. The model is continuously updated with new or recent temperature and power parameter measurements reflecting the most up-to-date operating condition of the system. Short-term system degradations are detected instantaneously by comparing compressor power or current as predicted by the model against measured power or current usage. Long-term system degradations are detected over time by monitoring the sensitivity of the compressor power or current usage to evaporator and/or condenser fluid temperatures. An appropriate warning and/or signal may be issued if system efficiency degradation is detected.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 22, 2019
    Applicant: Schneider Electric USA, Inc.
    Inventors: Paul R. BUDA, Ian J. LYTTLE
  • Publication number: 20190257865
    Abstract: A measurement circuit for monitoring at least one parameter of an input signal received from an external signal source includes at least one first measurement element coupled to the input signal and configured to provide an initial measurement signal indicative of a respective one or more of the at least one parameter of the input signal. At least one second measurement element is positioned proximate to the at least one first measurement element and configured to have a characteristic indicative of a stress condition associated with the at least one first measurement element. A compensation circuit is responsive to an output of the at least one second measurement element and to a reference signal to generate a compensation factor that is applied to the initial measurement signal to provide a corrected measurement signal.
    Type: Application
    Filed: September 11, 2018
    Publication date: August 22, 2019
    Applicant: Schneider Electric USA, Inc.
    Inventor: Erin C. McPhalen
  • Publication number: 20190228017
    Abstract: Methods and systems are disclosed for a sequential federated query for information in residential, commercial, and/or distributed systems.
    Type: Application
    Filed: June 23, 2017
    Publication date: July 25, 2019
    Applicant: SCHNEIDER ELECTRIC USA, INC.
    Inventors: Charbel Joseph El Kaed, Stephen Dillon
  • Patent number: 10359454
    Abstract: The present invention provides a method for accurately determining the power usage on an unbalanced two phase electrical circuit having both two phase and single phase loads using a single current transformer (CT). The method includes a learning algorithm stored in a memory of a monitoring device, the algorithm configured to be implemented by a processor. The learning algorithm determines whether the CT is monitoring the conductor that supplies the single phase load and alerting the installer if it is not monitoring the conductor supplying the single phase load. Upon determining that the CT is monitoring the conductor that supplies the single phase load the learning algorithm will learn the characteristics of at least the single phase load and store the learned characteristic in a memory associated of the monitoring device.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 23, 2019
    Assignee: Schneider Electric USA, Inc.
    Inventor: Timothy Brian Phillips
  • Patent number: 10361541
    Abstract: Method and apparatus for sealing an air vent in a switchgear cabinet provide a vent seal assembly having a vent seal cover and a set of linear guides on which the vent seal cover may be mounted. The vent seal cover and linear guides are housed within a casing attachable to an interior surface of the switchgear cabinet and directly over an air vent. Within the casing, the vent seal cover may slide freely along the linear guides toward the air vent, with no spring or other mechanical biasing mechanism to oppose the sliding of the cover. A catch on the casing releasably holds the vent seal cover to keep the air vent open during normal operating conditions. When an arc event occurs, pressure from the arc event knocks the vent seal cover free of the catch and propels it toward the air vent, quickly slamming the air vent shut.
    Type: Grant
    Filed: March 15, 2015
    Date of Patent: July 23, 2019
    Assignee: Schneider Electric USA, INC.
    Inventors: Jeffrey T. Jordan, Gregory O. Motley
  • Patent number: 10352884
    Abstract: A system for comfort based management of thermal systems, including residential and commercial buildings with active cooling and/or heating, is described. The system can operate without commissioning information, and with minimal occupant interactions, and can learn heat transfer and thermal comfort characteristics of the thermal systems so as to control the temperature thereof while minimizing energy consumption and maintaining comfort.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: July 16, 2019
    Assignee: Schneider Electric USA, Inc.
    Inventors: Larry A. Turner, Paul Robert Buda, Scott Robert Brown, Gary Brent Pollard, David R. Glasgow
  • Patent number: 10340640
    Abstract: A method and apparatus for determining the current condition of power contacts and providing an indication to a preventive maintenance system and/or a user of required power contact replacement. The method includes auxiliary contacts providing a low power binary signal to a processor in response to movements of a contact carrier supporting the movable auxiliary contacts and movable power contacts. The low power binary signals, in combination with physical features of the contact carrier and a signal indicating the state of the power contact, provide information to the processor for determining the current condition of the power contacts, and if the current condition exceeds a predetermined limit, notifying the preventive maintenance system and/or the user.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: July 2, 2019
    Assignee: SCHNEIDER ELECTRIC USA, INC.
    Inventors: Conrad S. Weiden, Hien M. Nguyen, Michael V. Maloney, Samuel Jacob Calloway, Anthony Reac Martinez Arazo
  • Publication number: 20190195922
    Abstract: A system and method are provided to perform current sensor error compensation. The system and method involve obtaining a current measurement of a current on a circuit from a current sensor; obtaining a voltage measurement of a voltage associated with the current from a voltage sensor; determining a fundamental frequency of the voltage from the voltage measurement; and performing error compensation on the current measurement based on the determined fundamental frequency to produce a corrected current measurement. The current sensor error compensation may be performed to correct current measurements in a motor system, such as in a motor overload relay, at a low cost by using functionality already available in the system.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 27, 2019
    Applicant: SCHNEIDER ELECTRIC USA, INC.
    Inventors: Kevin M. JEFFERIES, Benjamin W. EDWARDS, Matthew L. WHITE, Alan E. FREEMAN
  • Publication number: 20190195926
    Abstract: A modular monitoring and control system for NEMA-style load center smart electrical distribution panels is built up from interconnectable modules, starting with a Base Unit for monitoring and reporting on select branch circuits, then adding a Control Module for Remotely Operated breakers or additional current monitoring or both; and/or adding a separate Expansion Module with Current Transformer expansion capabilities for adding a larger number of power monitors within the load center. The modules plug into breaker pole slots within the panel for ease of installation and are independent of the breakers. The system keeps initial smart panel costs low by placing monitoring and control functionality and required parts into add-on modules.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Applicant: Schneider Electric USA, Inc.
    Inventors: Chad Mittelstadt, Paul Reid
  • Publication number: 20190199247
    Abstract: The present invention provides an improved hybrid motor starter that extends the expected life of the main motor contacts of a standard contactor by reducing arcing during opening and closing of the main motor contacts and permits the use of physically smaller solid state switching devices and secondary contacts that have electrical ratings significantly lower than the standard contactor. The use of smaller solid state switching device and secondary contacts that have lower electrical ratings is permitted by minimizing the time at which these devices are exposed to full motor currents.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Applicant: Schneider Electric USA, Inc.
    Inventors: Kevin M Jefferies, Benjamin W Edwards, Alan Freeman, Richard Karl Weiler
  • Patent number: 10330725
    Abstract: Systems, methods, and devices for monitoring one or more capacitor banks are presented herein. One concept of the present disclosure is directed to a method of monitoring at least one capacitor bank having a plurality of steps. The method includes: receiving measurements indicative of voltages and/or currents on electrical lines coupled to the steps of the capacitor bank by corresponding contactors; receiving information indicative of the respective statuses of the contactors; timestamping the measurements and contactor status information; storing the timestamped measurements with corresponding timestamped contactor status information; determining a rate of change of a parameter indicative of or derived from at least the measurements associated with at least one of the steps in the capacitor bank; comparing the determined rate of change with a baseline rate of change to produce a deviation; determining if the deviation satisfies a criterion; and, if so, indicating the deviation satisfied the criterion.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: June 25, 2019
    Assignee: SCHNEIDER ELECTRIC USA, INC.
    Inventors: David T. Tuckey, Jean-Marc Lupin
  • Patent number: 10333290
    Abstract: A single current transformer arc fault/ground fault sensing circuit utilizes a sense coil and an injection coil from the line conductor placed concentrically and overlapping on a common core. The injection coil is operated by an in-line switch to allow current flow into the injection winding to influence the sense coil. With both the line and return conductors of a single phase circuit being surrounded by the transformer, opening the switch allows a ground fault sampling period, while closing the switch allows an arc fault sampling period.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 25, 2019
    Assignee: Schneider Electric USA, Inc.
    Inventor: Joseph R Beierschmitt
  • Publication number: 20190190253
    Abstract: In accordance with an example embodiment of the invention, in an overload relay for a three-phase motor, an adjusted threshold for detected current phase unbalance is dynamically determined at which the relay will be tripped. The adjusted threshold is a function of a ratio of an average of currents in the three-phases to the rated full load current of the motor, i.e., motor load. As the motor load decreases, the adjusted current phase unbalance threshold is increased, causing the resulting trip time to increase, thereby increasing motor run time and reducing downtime.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 20, 2019
    Applicant: SCHNEIDER ELECTRIC USA, INC.
    Inventors: Kevin M. JEFFERIES, Benjamin W. EDWARDS, Matthew L. WHITE, Alan E. FREEMAN, Richard K. WEILER
  • Publication number: 20190189305
    Abstract: An automated process for producing exposed electrical contact areas on the conductor part of an epoxy coated bus bar. When the epoxy coating is in the glassy state, one can safely and economically, preferably via automated apparatus, put the epoxy into the rubbery state by positioning the bar and applying localized heat at a select area of the coating; monitoring the heating to above the glass transition temperature of the epoxy, bringing cutting tools into contact with the epoxy for cutting and removing the rubbery coating away from the bus bar, and cooling the bus bar to bring adjacent coating back to the glassy state, thereby leaving an exposed electrical contact area of conductor on the bus bar with little or no surface damage.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 20, 2019
    Applicant: Schneider Electric USA, Inc.
    Inventor: John A Wittwer
  • Publication number: 20190190428
    Abstract: A system and method is provided to monitor wear on a power factor correction capacitor in a motor system. The system and method obtains a baseline inductance angle, reactive power or power factor corresponding to a baseline power factor correction by the capacitor in the circuit; monitors a current supplied to the motor at a location upstream of the capacitor; monitors a voltage supplied to the motor, and determines a present inductance angle, reactive power or power factor based on the monitored current and voltage. The present inductance angle, reactive power or power factor corresponds to a present power factor correction by the capacitor.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 20, 2019
    Applicant: SCHNEIDER ELECTRIC USA, INC.
    Inventors: Richard K. WEILER, Benjamin W. Edwards, Alan E. FREEMAN, Kevin M. JEFFERIES, Julius M. LIPTAK, Matthew L. WHITE
  • Patent number: 10326264
    Abstract: Systems and methods for auto-monitoring a trip solenoid and a switching semiconductor in a circuit breaker comprises determining whether the trip solenoid or the switching semiconductor is open-circuited or otherwise non-operational. The trip solenoid has multiple windings therein and the switching semiconductor has multiple semiconductor switches therein. The circuit breaker automatically performs a designated action if one of the multiple windings or one of the semiconductor switches is determined to be open-circuited or otherwise non-operational. In some embodiments, the circuit breaker is a miniature circuit breaker.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: June 18, 2019
    Assignee: Schneider Electric USA, Inc.
    Inventors: Randall Gass, Jason Potratz, Dennis William Fleege, Chad Mittelstadt, Brett Larson, Paul Reid