SCHNEIDER ELECTRIC USA, INC.

In a method and system, a low-energy protection mode is implemented at a first trip current threshold setting for a circuit breaker(s) of an electrical system to provide arc flash protection and allow for user maintenance on or in proximity to electrical equipment on a protected circuit of the electrical system. If a higher current demand by the protected circuit or electrical equipment thereon is anticipated to exceed the first trip setting under normal equipment operation, the first trip setting is temporarily changed to a second trip current threshold setting for the breaker(s) to accommodate the higher current demand at a high-energy protection mode, and user maintenance is restricted on or near the electrical equipment on the electrical system during operation at the second trip setting. The second trip setting provides a higher allowable current on the protected circuit than the first trip setting.

An arc flash protection system and method are used to generate a worst-case arc-flash incident energy for downstream electrical equipment based at least on device information obtained for the downstream electrical equipment, constant arc-flash incident energy curves based upon the parameters of the downstream equipment, and the tripping time/current characteristics determined for a primary electrical protective device associated with the downstream electrical equipment. An arc flash label for the downstream electrical equipment is generated based at least on the worst-case arc-flash incident energy generated for the downstream electrical equipment. In a local hosting embodiment, the primary electrical protective device is configured for determining the worst-case arc-flash incident energy for downstream electrical equipment connected thereto. In an external hosting embodiment, an arc flash labeling computer is configured to provide sophisticated outputs in addition to determining the worst-case arc-flash incident energy for downstream electrical equipment connected to a primary electrical protective device.

Techniques for online detection of objects in images using a set of trained machine learning (ML) models. The techniques include: (a) responsive to receiving images of objects of a first type, processing the received images, using a selected trained ML model from among the set of trained ML models, to segment objects of the first type in the images to obtain respective segmentation masks; (b) during performance of (a) evaluating performance of multiple ML models using measure(s) of performance; identifying, based on the evaluating, a particular trained ML model; when the selected trained model is identified as the particular trained ML model, continuing (a) using the selected trained ML model, otherwise continuing performance of (a) using the particular trained ML model instead of the selected trained ML model.

Techniques for detecting objects in images using machine learning (ML). The techniques include obtaining an image of an object; and segmenting the object in the image from background of the object in the image using to obtain a segmentation mask for the image, the segmenting including: processing the image with a first trained ML model to obtain first image features; transforming the first image features to second image features for processing by a second trained ML model; and processing the second image features using the second trained ML model to obtain the segmentation mask for the image, wherein the segmentation mask identifies pixels associated with the object in the image and pixels associated with background of the object in the image.

Techniques are described for electrical equipment management. Embodiments include a method for electrical equipment refit management, comprising: receiving a selection of an order of an existing electrical equipment system to disassemble and, in response, retrieving and providing a plurality of disassembly instructions; performing an iterative disassembly process to manage the disassembly of the existing electrical equipment system. A selection of an order of a refit electrical equipment system to assemble is received and, in response, retrieving and providing a plurality of refit instructions; An iterative assembly process is performed to manage the assembly of the refit electrical equipment system. Digital artifacts of the refit electrical equipment system are recorded during performance of the plurality of refit instructions as part of the iterative assembly process. A final assembly report for the refit electrical equipment system and stored together with a unique identifier corresponding to the assembled refit electrical equipment system.

A fastening assembly for attaching a first structure to a second structure located at least partially behind the first structure can include a clip configured to insert into an opening in the first structure in an axial direction. The clip can be configured to engage the first structure when inserted into the opening of the first structure in the axial direction such that the clip is configured to be axially retained to the first structure, the clip defining a passthrough channel. The assembly can include a fastener configured to insert through the passthrough channel to extend beyond the clip in the axial direction to mate with a mating portion of the second structure. The clip and fastener can be configured such that the clip axially limits a motion of the fastener when the fastener is advanced through the passthrough channel beyond a threshold insertion position to captively retain the fastener and prevent backing out of the fastener.

A circuit breaker includes a blade operable between a closed-contacts position to close the electrical contacts and an opened-contacts position to open the contacts; a kicker lever with a kicker operable to move the blade to the opened-contacts position or to release the blade from the opened-contacts position; a catch lever operable to a latched position for holding the kicker lever in the opened-contacts position and an unlatched position for unlatching and releasing the kicker lever, and thus the blade, from the opened-contacts position to the closed-contacts position; and a moveable slider operable in a first direction to move and latch the blade, via the kicker and catch levers, in the opened-contacts position and in a second direction to unlatch and release the blade from the opened-contacts position to the closed-contacts position. The catch lever (or portion thereof) is located below or under the slider or portion thereof.

A method of automating cypher configuration for a plurality of industrial devices within an industrial system is provided. The method includes receiving system parameters for the industrial system and receiving from a data source device parameters for respective individual industrial devices of the plurality of industrial devices. The method further includes selecting, generating and/or updating an optimal cypher configuration for the respective individual industrial devices based on or using the system parameters for the industrial system and the device parameters for the respective individual devices. The method further includes providing the optimal cypher configuration to the respective individual industrial devices for configuration of the respective individual industrial devices' cypher configuration.

This disclosure relates generally to an energy metering assembly configured to measure current and voltage of a one or more primary conductors, the energy metering assembly comprising a core; a coil having a plurality of turns, the coil being positioned around the core when securing the core to the one or more primary conductors; a voltage sensor coupled to the coil, the voltage sensor being configured to sense a voltage of a one or more primary conductors; and a controller coupled to the coil and the voltage sensor, the controller being configured to determine a voltage of the one or more primary conductors, determine a current of the one or more primary conductors, and responsive to determining the voltage and the current, determine the power and/or energy carried by the one or more primary conductors.

Methods of heating a reactor system by providing electrical energy are described. A reactor system comprising at least one reactor tube having a catalyst disposed therein and comprises at least one electrically conductive surface is heated by providing electrical energy to the at least one electrically conductive surface on the reactor tube and adjusting the frequency of the electrical energy provided to the at least one electrically conductive surface to control the temperature of the reactor tube and the catalyst disposed therein. The reactor tube may be electrically isolated from other electrically conductive components of the reactor system.