REVERSE HANDLE ACCESSORY FOR MOLDED CIRCUIT BREAKER

    公开(公告)号:US20250069839A1

    公开(公告)日:2025-02-27

    申请号:US18455170

    申请日:2023-08-24

    Abstract: A circuit breaker accessory for reverse handle operation of a circuit breaker installed in a vertically inverse orientation includes a housing configured for attachment to a face of a circuit breaker on which a switching handle of the circuit breaker is arranged. A reverse switching handle is configured with a transverse sleeve for a pivot axis of operation between a down position and an up position with a top to protrude through the housing. An extension arm has a pivoting connector at a first end for coupling with the bottom end of the reverse switching handle, and a collar at a second end for coupling with the switching handle of the circuit breaker. A pivot shaft couples the transverse sleeve of reverse switching handle with the housing, arranged to fit through the transverse sleeve. The reverse switching handle operates in a direction opposite to the switching handle of the circuit breaker due to extension by the extension arm.

    SYSTEM AND METHOD FOR RELIABLE OVER-THE-AIR FIRMWARE UPDATES

    公开(公告)号:US20250028517A1

    公开(公告)日:2025-01-23

    申请号:US18356816

    申请日:2023-07-21

    Abstract: A system for over-the-air (OTA) firmware update includes an industrial device with firmware, a central server with an interface configured to collect and process data from a data source, a wireless network, wherein the at least one industrial device and the central server are configured to communicate via the wireless network, and an OTA prediction module, the OTA prediction module being configured via executable instructions to determine a probability rate for a successful OTA firmware update of the industrial device based on the data received from the data source, and deploy the OTA firmware update to the industrial device when the probability rate is equal to or above a predetermined threshold.

    ON-SITE DEVICE TO DIAGNOSE AND RECOVER OFFLINE NETWORKED ELECTRIC VEHICLE SUPPLY EQUIPMENTS (EVSES)

    公开(公告)号:US20250018823A1

    公开(公告)日:2025-01-16

    申请号:US18350297

    申请日:2023-07-11

    Abstract: An on-site device configured to be used with networked Electric Vehicle Supply Equipments (EVSEs) is provided to diagnose or recover an EVSE for configuration. The on-site device comprises a first coupler interface configured to electrically connect the on-site device to one or more EVSEs, a first communication interface to connect the on-site device to a short-range communication network on a wired network or on a wireless network. It further comprises a second communication interface to connect the on-site device to a long-range wireless communication network, a processor and a memory storing instructions that, when executed by the processor, cause the on-site device to: establish a communication connection with the EVSE and interface to the EVSE via a programmable logic controller (PLC) on a control pilot, Modbus RTU or other near-field communication (NFC), perform diagnostics to locally recover charging operation or network connectivity of EVSEs and further aid in remote maintenance.

    SENDING SAMPLED METER DATA FROM AN ELECTRIC VEHICLE CHARGER TO A BACKEND FOR REPORTING VIA OPEN CHARGE POINT PROTOCOL (OCPP) FOR USE BY A UTILITY TO CHARGE A CUSTOMER

    公开(公告)号:US20240408997A1

    公开(公告)日:2024-12-12

    申请号:US18332255

    申请日:2023-06-09

    Inventor: Daniel Feldman

    Abstract: A system and a method of sending sampled meter data from an electric vehicle charger to a backend for reporting via Open Charge Point Protocol (OCPP) for use by a utility to charge a customer for a power usage bill is provided. The method comprises sampling the meter data during a charging session of an electric vehicle (EV) at the electric vehicle charger being in an offline state to generate a raw utility billing cycle interval data and session data and a raw greater than 45-days interval data and session data. The method further comprises not sending the raw utility billing cycle interval data and session data as is from the electric vehicle charger to the backend. The method comprises sending a summary of the raw utility billing cycle interval data and session data in a format compliant with the OCPP to be interrupted correctly by an OCPP server.

    "> OVERLOAD PROTECTION SYSTEM INCLUDES A LOAD MANAGEMENT SYSTEM HAVING A MONITORING RELAY WITH A

    公开(公告)号:US20240388079A1

    公开(公告)日:2024-11-21

    申请号:US18319134

    申请日:2023-05-17

    Abstract: An overload protection system compromises a panelboard and a LMS which is configured to constantly measure the total amount of power being used at the panelboard such that when the total amount of energy measured is at or above a high programmed level, the LMS stops power from being supplied to a load and when the total amount of energy measured is at or below a low programmed level, the LMS allows power to be supplied to the load. The LMS comprises a monitoring relay with a “threshold hysteresis” built-in, which means that a threshold current at which an output switches from one state to another state is different depending on whether an input current is increasing or decreasing. The “threshold hysteresis” helps to eliminate noise and ensure that the output switches cleanly between ON and OFF, even if an input current level is fluctuating around a threshold current level.

    DC SOLID-STATE CIRCUIT BREAKER WITH FAIL-SAFE REDUNDANCY VIA DOUBLE POWER ELECTRONICS AND OVERVOLTAGE PROTECTION

    公开(公告)号:US20240321540A1

    公开(公告)日:2024-09-26

    申请号:US18186984

    申请日:2023-03-21

    Inventor: Guang Yang

    CPC classification number: H01H71/123 H02H3/04 H02H3/202

    Abstract: A DC solid-state circuit breaker is provided with fail-safe redundancy. The DC solid-state circuit breaker comprises an air gap disposed in series to first and second power electronics switching modules. The DC solid-state circuit breaker further comprises a sensing and control circuit configured to realize designed functions. The DC solid-state circuit breaker further comprises first and second overvoltage protection devices connected in series for overvoltage or surge protection for the sensing and control circuit such that both the first and second overvoltage protection devices have threshold voltages higher than a system voltage. The DC solid-state circuit breaker further comprises a load side overvoltage protection device provided for overvoltage protection after switching OFF.

    Controller and method for managing a flow unit

    公开(公告)号:US12072115B2

    公开(公告)日:2024-08-27

    申请号:US17710240

    申请日:2022-03-31

    CPC classification number: F24F11/63 F24F11/74 F24F2140/40

    Abstract: There is described a controller and method for managing a flow unit. A measured full flow corresponding to a full open position of a flow control element of the flow unit is detected. A calibration nominal is established based on the measured full flow, and calibration relative flows are calculated based on the calibration nominal and calibration measured flows corresponding to calibration positions of the flow control element. Subsequent to calibration, an operation measured flow of the flow unit and an operation position of the flow control element are detected. A dynamic nominal is determined based on the operation measured flow and a particular calibration relative flow corresponding to the operation position of the flow control element. An operation relative flow and a relative flow setpoint are determined based, in part, on the dynamic nominal. The operation position of the flow control element is controlled based the operation relative flow and relative flow setpoint.

    ELECTRONIC CIRCUIT BREAKER CONFIGURED TO PROVIDE A FAIL-SAFE MODE

    公开(公告)号:US20240222956A1

    公开(公告)日:2024-07-04

    申请号:US18609657

    申请日:2024-03-19

    Inventor: Guang Yang

    CPC classification number: H02H5/047 H02H1/0007 H02H3/20

    Abstract: An electronic circuit breaker is configured to provide a fail-safe mode. It comprises at least one overvoltage component, a temperature sensor attached to the at least one overvoltage component and a sensing and control circuit configured to monitor temperatures of the at least one overvoltage component. There are two criteria to decide if the electronic circuit breaker should open, when either criterion is met. The first criteria is if monitored temperatures exceed max safe temperature at any time and the second criteria is if the monitored temperatures increase at two different time moments during start up.

    Circuit breaker distribution system configured to provide selective coordination

    公开(公告)号:US12027841B2

    公开(公告)日:2024-07-02

    申请号:US17402267

    申请日:2021-08-13

    CPC classification number: H02H3/021 H02H1/0007 H02H3/08

    Abstract: A circuit breaker distribution system is configured to provide selective coordination. The system comprises a solid-state switch disposed as a main or upstream breaker and a switch with an over current protection disposed as a branch or downstream breaker. The solid-state switch comprises a microcontroller to: allow repeated pulses of current through to the branch or downstream breaker in an event of an overload or short circuit, choose a maximum current limit for the solid-state switch as a “chop level” such that the chop level is chosen higher than a rated current of the solid-state circuit breaker but low enough that the solid-state switch is not damaged from repeated pulses over a period of time needed to switch OFF the branch or downstream breaker, and add a pulse interval which is optimized to a system voltage waveform in that chopped pulses tend to be longer and more effective for de-latching the branch or downstream breaker when they occur in vicinity of a zero crossing of the system voltage waveform and chopped pulses are shorter and less effective near peaks of the system voltage waveform.

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