Schneider Electric Patente

The disclosure relates to a terminal shield and to a circuit breaker with said terminal shield. The terminal shield comprises: a bottom wall (10); a top wall (20); and two or more deflector walls, each deflector wall extending from one of the bottom wall (10) and the top wall (20) toward the other and ending at a distance therefrom, so that a meandering gas-flow channel is formed by the bottom wall (10), the top wall (20) and the deflector walls.

A torque indicating apparatus includes a torsion member and an indicator. During a process of a bolt being screwed into a threaded hole of the electrical device, the torsion member is adapted to be pressed by the bolt and undergo deformation. The torsion member includes: a pair of elastic parts, adapted to contact the bolt to be pressed and move closer to each other during the process of the bolt being screwed into the threaded hole; a pair of extending parts respectively coupled to the pair of elastic parts and adapted to extend along an axial direction of the bolt; and a connecting part arranged between the pair of extending parts and coupled to the pair of extending parts. The indicator is movably coupled to a housing and adapted to move between a looseness position and a tightness position in response to the deformation of the torsion member.

A signal detection apparatus (1) includes an acquisition assembly, a charging capacitor (3), an AC-DC conversion module (4), a detection capacitor (5), and a pair of voltage detection interfaces (6). The acquisition assembly is coupled to a target line (11) to acquire a surge signal in the target line (11). The acquisition assembly includes at least two acquisition coils (2) connected in series. Two ends of the charging capacitor (3) are respectively coupled to the acquisition assembly, and the charging capacitor (3) is adapted to be charged by the acquisition assembly. The AC-DC conversion module (4) is connected in parallel to the charging capacitor (3) to convert an AC voltage output by the charging capacitor (3) into a DC voltage. The detection capacitor (5) is coupled to the AC-DC conversion module (4) to be charged by the AC-DC conversion module (4). The pair of voltage detection interfaces (6) are respectively coupled to two ends of the detection capacitor (5) to detect a voltage across the detection capacitor (5).

La présente invention concerne un disjoncteur hybride (1), comprenant un dispositif de commutation (5) et une unité de contrôle (7). Le dispositif de commutation (5) comprend une branche principale (25), comprenant un interrupteur mécanique (17), et une branche d'interruption (27), comprenant un composant semi-conducteur (19) et un interrupteur d'isolation (21). Le composant semi-conducteur (19) est configuré pour basculer entre une configuration passante et une configuration bloquée. L'interrupteur d'isolation (21) est configuré pour basculer entre une configuration fermée et une configuration ouverte. L'interrupteur mécanique (17) est configuré pour basculer une configuration fermée, une configuration ouverte et une configuration sectionnée. La résistance au passage du courant dans la branche principale de l'interrupteur mécanique (17) en configuration sectionnée est supérieure à la résistance au passage du courant dans la branche principale de l'interrupteur mécanique (17) en configuration ouverte.

Embodiments of the disclosure provide a busbar support apparatus and a power distribution cabinet. The busbar support apparatus includes a first support member and a second support member spaced apart. The adjacent sides of the first and second support members are respectively provided with a plurality of first grooves. The top and bottom of the first and second support members are respectively provided with a plurality of second grooves. The plurality of first grooves are respectively configured to fix a plurality of busbars. The plurality of second grooves are respectively configured to fix a plurality of inter-phase insulating separator plates. A plurality of outer insulating sleeves are arranged between the first and second support members and respectively correspond to the plurality of second grooves. A plurality of connecting assemblies respectively penetrate through the plurality of outer insulating sleeves and are coupled to the first and second support members.

Il est proposé un dispositif de coupure (30) pour un appareil électrique (100) de moyenne tension, comportant :- un contact fixe (1),- un contact mobile (2) configuré pour pivoter par rapport à un axe de pivot (R2) entre :une première position (P1) dans laquelle les contacts (1,2) sont écartés, etune deuxième position (P2) dans laquelle les contacts (1,2) sont en contact,dans lequel le contact fixe (1) comprend un guide d'arc électrique (5) saillant du contact fixe (1), le guide d'arc électrique (5) étant configuré pour être parcouru par un arc électrique généré à l'établissement ou à la coupure du courant électrique entre le contact fixe (1) et le contact mobile (2),dans lequel le guide d'arc électrique (5) comprend deux rainures (6) séparées par une nervure (7).

A solid-state circuit breaker (100) includes an electronic switch (170); a mechanical switch (110) configured to complete a turn-on process and a turn-off process by manual operation; and a sensor (120, 130, 140) configured to generate a trigger signal depending on a position of the mechanical switch (110) during at least one of the turn-on process or the turn-off process. A control unit (150) is configured to activate a boosting mechanism (160) according to the trigger signal. The boosting mechanism (160) is configured to provide a boost for the turn-on process or the turn-off process. The electronic switch (170) is connected in series with the mechanical switch (110).

The present disclosure proposes an operating mechanism, including: a housing; a transmission shaft, being parallel to a movable contact pivot axis, penetrating through and protruding from a movable contact assembly; a pull rod, configured to move between a first position and a second position; a pivot plate, installed to be able to pivot around the movable contact pivot axis relative to the housing, the pivot plate being provided with a first hole connected with the transmission shaft; a first pivoting member, one end of the first pivoting member being pivotally connected to the housing; and a second pivoting member, one end of the second pivoting member is pivotally connected to other end of the first pivoting member and the pull rod, and other end of second pivoting member is pivotally connected to the pivot plate at a second hole of the pivot plate to drive the pivot plate to pivot around the movable contact pivot axis, and then the pivot plate drives the movable contact assembly to pivot around the movable contact pivot axis, a distance between the second hole and the movable contact pivot axis is smaller than a distance between pivot axes of two ends of the first pivoting member.

An electrical protective device for an electrical circuit is configured to mitigate leakage current by directing leakage current away from a load connected to the electrical circuit, when the device enters a standby operating mode wherein the device operates at a reduced capacity. The device comprises at least one of a shunt switch, a crowbar circuit, and a common mode voltage protection system. The shunt switch provides a low resistance path for directing leakage current from a positive leg of the circuit connected to a line side of the device away from the load, and into a negative leg of the circuit connected to the line side. The crowbar circuit is used in addition to the shunt switch to mitigate fault conditions that could damage the shunt switch. The common mode voltage protection system is configured to provide a low resistance path for maintaining the load voltage near ground potential.

A system for detecting failures of solid-state switches in a main circuit includes: a first solid-state switch; a second solid-state switch connected in series with the first solid-state switch and in parallel with a diode; a voltage dividing resistor connected in series with the first solid-state switch and the second solid-state switch; and an injection unit configured to apply a voltage to a circuit including the first solid-state switch, the voltage dividing resistor, and the second solid-state switch. A control unit is configured to: transmit a first driving signal and a second driving signal to the first solid-state switch and the second solid-state switch, respectively, wherein the first driving signal and the second driving signal are used to indicate the switches to close; and determine whether the first and second solid-state switches have failures based on a voltage across the voltage dividing resistor.

The embodiment of the present disclosure provides an interlocking apparatus (3) for a drawer cabinet and a drawer cabinet. The interlocking apparatus (3) comprises a locking mechanism (4) arranged within a drawer (2) of the drawer cabinet and comprising: a bracket (41); a driving plate (43) coupled to the bracket (41); and a locking plate (42) coupled to the driving plate (43) and slidably connected to the bracket (41) in a second direction, and exit a locking hole of a fixing portion of the drawer cabinet during sliding of the driving plate (43) from the locking position to the unlocking position; and a limiting mechanism (5) arranged within the drawer (2) and located between a handle (21) of the drawer (2) and the locking mechanism (4), comprising: a fixing plate (51) coupled to the drawer (2); a cam crank arm (52) coupled to the handle (21) and adapted to rotate with the handle (21) between an opening position and a closing position; and a limiting member coupled to the fixing plate (51).

The embodiment of the present disclosure provides an interlocking apparatus for a drawer cabinet and the drawer cabinet. The interlocking apparatus comprises a bracket (2) coupled to a bottom surface of the drawer (7); a driving plate (3) adapted to slide in a first direction from a locking position to an unlocking position; a locking plate (4) arranged between a fixing portion (6) and the drawer (7) and partially inserted into a fixing hole (61) of the fixing portion (6), the locking plate (4) being slidably connected to the bracket (2) and adapted to slide along a second direction under pushing of the driving plate (3); and a blocking plate (5) coupled to the bracket (2) and shielding a handle insertion hole (71) of a rocker mechanism of the drawer cabinet, the blocking plate (5) being adapted to slide in a third direction under the pushing of the driving plate (3) during the sliding of the driving plate (3) from the locking position to the unlocking position.

A method for maintenance work of a first safety function (101) implemented in a first channel (100) in a first programmable logic device(10, 20), PLDev, for an industrial system, wherein a second safety function (102) is implemented in the first channel (100), and the first safety function (101) is applied for a first safety purpose of the industrial system and the second safety function (102) is applied for a second safety purpose of the industrial system, the method comprising: providing an auxiliary channel (100a) in a second PLDev, wherein the auxiliary channel (100a) is capable of including a copy of the first channel (100), and the first PLDev (10, 20) and the second PLDev are the same single PLDev or two separate PLDevs; copying the first channel to the auxiliary channel (100a), when the first safety function (101) and the second safety function (102) in the first channel (100) are in operation; connecting the first safety function (101a) copied in the auxiliary channel (100a) to the industrial system; conducting the maintenance work using the first safety function (101a) copied in the auxiliary channel (100a); disconnecting the first safety function (101a) copied in the auxiliary channel (100a) from the industrial system.

Ein Gehäuse zur Hutschienenmontage weist an seiner Rückseite eine Hutschienenhalterung mit Haltevorsprüngen auf, zwischen denen ein Federelement vorgesehen ist, mit dem das Gehäuse lösbar an einer Hutschiene befestigbar ist.

A method for predictive maintenance of a device based on temperature monitoring involves creating (P1) a digital twin of the device. The method includes determining (S1) a virtual ambient temperature, VAT, by recording ambient and device temperatures when the device is not in operation, creating a model to reproduce the variation of device temperature based on ambient temperature, and calculating (S2) a relative device temperature, RDT. The method further includes calculating (S3) an additional temperature variation, DTVA, due to the device's operation, recording operational data, and training (S4) the digital twin with this data. The digital twin predicts (S5) temperature increases based on operational data, and the method predicts device temperature by adding VAT to the predicted increase. Abnormal temperatures are detected (S6) by comparing predicted and actual temperatures, identifying deviations that exceed a predefined threshold. The system includes sensors, a data acquisition unit, a processing unit, and a communication module for transmitting alerts.

Ein Steckdosengehäuse weist eine Vorderseite auf, von der aus sich ein Steckdosentopf mit einer Mittelachse in das Gehäuseinnere erstreckt, wobei der Steckdosentopf in axialer Richtung mit einem Ringsteg über die Vorderseite des Steckdosengehäuses vorsteht.

A miniature circuit breaker (100) includes a tripping mechanism (10), a magnetic trip assembly (30), and an electronic trip unit (40). The tripping mechanism (10) includes a moving contact support (11), a moving contact (12), and first and second actuation input parts (131,132) which are adapted to drive the moving contact support (11) to move to drive the moving contact (12). The magnetic trip assembly (20) includes a coil (31) and an actuation part (32). When a main circuit current is greater than a first predetermined short-circuit current threshold, the actuation part (32) acts to apply an external force to the first actuation input part (131). The electronic trip unit (40) includes a current sensor (41), a controller (42), and an action actuator (43). The controller (42) is configured to control the action actuator (43) to apply the external force to the second actuation input part (132) in response to the main circuit current being greater than a predetermined overload current threshold and less than a second predetermined short-circuit current threshold.

The disclosure relates to a circuit for multi-color LED mixed color balance calibration, the circuit including: an LED loop including one or more LED channels with different colors, each of the one or more LED channels with different colors includes one or more LEDs with a same color and an LED switch; an LED junction configured to be connected to the one or more LED channels with different colors; a voltage divider resistor configured to be connected between the LED junction and a color calibration switch; the color calibration switch configured to enable or disable color calibration based on a received color calibration enable signal; and a microprocessor configured to: generate a color calibration enable signal, measure a first voltage, based on the generated color calibration enable signal, and adjust a mixed color output by the LED loop based on the measured first voltage.

L'invention concerne un dispositif de mesure (4) d'au moins une grandeur électrique d'un signal électrique circulant dans un dispositif contacteur (2), le dispositif contacteur (2) comportant, pour chaque phase parmi N phases, un élément de contact (18) connecté à un conducteur électrique de phase (15), l'au moins une grandeur électrique comprenant une tension, le dispositif de mesure (4) étant configuré pour être installé en façade dudit dispositif contacteur (2), et comprenant une unité de contrôle électronique (24) comportant N nappes flexibles (26), et pour chaque phase :-un ensemble de connexion (20) connecté à une desdites nappes flexibles (26),-une pièce d'actionnement (22) de l'ensemble de connexion (20), configurée pour être déplacée d'une position libre dans laquelle l'ensemble de connexion (20) est isolé électriquement du dispositif contacteur à une position bloquée dans laquelle l'ensemble de connexion (20) est en appui sur un desdits éléments de contact (18) du dispositif contacteur.

Ce procédé de détermination automatique de la topologie d'un réseau Ethernet 10BASE-T1S comportant plusieurs nœuds connectés sur un même tronc de communication comporte les étapes suivantes, exécutées par un nœud de contrôle qui est un nœud d'extrémité du tronc : - initialisation (32) par envoi d'un message d'initialisation de la détermination de topologie, comprenant une instruction de passage en mode de simple réception, à tous les nœuds connectés, o pour chacun des nœuds connectés, un envoi (36) d'un message d'activation de mesure audit nœud connecté, et une mise en œuvre (38) d'un procédé de mesure de distance entre le nœud de contrôle et ledit nœud connecté, et mémorisation (40) de la distance mesurée, - détermination (44) de l'ordre de connexion des nœuds par rapport au nœud de contrôle en fonction des distances mémorisées, et - envoi (42) d'un message d'arrêt de la détermination de topologie à tous les nœuds connectés.

A method performed by a computing system and the computing system of a device coupled to a network for performing fast device replacement (FDR), including storing a cryptographic key set, accessing at least one signed replacement data set provided to a fast device replacement (FDR) storage device by respective one or more sources, verifying a source that provided a particular signed replacement data candidate of the at least one signed replacement data set that was accessed by verifying a cryptographic signature used to sign the particular signed replacement data candidate using a cryptographic algorithm and the stored cryptographic key set, and allowing fast device replacement using replacement data of the particular signed replacement data candidate pending verification of its associated cryptographic signature, and methods performed by and computing systems of the FDR storage system and a trusted tool configured to facilitate FDR to a plurality of devices.

Embodiments described herein provide techniques for detecting Electrical Circuit Breaker (ECB) events. Embodiments receive Electrical Circuit Breaker (ECB) handle motion data from a sensor, generate an encoded motion vector using one or more motion characteristics from the received ECB handle motion data, generate a probability distribution of ECB events from the encoded motion vector and the one or more motion characteristics using a trained Machine Learning (ML) model, generate a prediction of an electrical breaker movement event based on the generated probability distribution of ECB events by identifying an ECB event with the highest probability from the trained ML model, and transmit a signal, upon determining the predicted electrical breaker movement event has occurred.

A DC socket includes: first and second socket contacts respectively electrically coupled to a positive and a negative electrodes of a power supply; a trigger circuit generating a first trigger signal upon a plug being inserted to a first predetermined position; an on-off control unit connecting to the trigger circuit and including a first line and a second line respectively connected between the first socket contact and the positive electrode, where the first line is provided with a semiconductor switching element, the second line is provided with a relay, and the on-off control unit controls the semiconductor switching element to be switched on upon receiving the first trigger signal; a voltage detection unit connected between the first line and the on-off control unit, where the on-off control unit controls the relay to be switched on upon voltage of the first line being equal to a power supply voltage.

The present disclosure defines a DC socket comprising a positive socket contact (11) and a negative socket contact (12); a linkage detection unit (20) disposed adjacent to the positive socket contact (11) or the negative socket contact (12), and configured to generate a trigger signal in response to a pin (201) of a plug (200) being pulled out from the positive socket contact (11) or the negative socket contact (12) and passing a first position; a mechanical contact switch (30) electrically connected between the positive socket contact (11) and a positive power input terminal (101) of the DC socket, and configured to be closed in response to the pin (201) being inserted into the positive socket contact (11) or the negative socket contact (12) to a second position and be opened in response to the pin (201) being pulled out from the positive socket contact (11) or the negative socket contact (12) and passing the second position, wherein a pulled-out portion of the pin (201) in the second position is longer than that of the pin (201) in the first position; a control circuit (40) electrically connected to the linkage detection unit (20), and configured to generate a control signal lasting for a predetermined duration in response to receiving the trigger signal; and a delayed switching-off unit (50) electrically connected between the positive socket contact (11) and the positive power input terminal (101) and electrically connected to the control circuit (40), and configured to be switched on in response to receiving the control signal from the control circuit (40) and be switched off before the pin (201) is pulled out from the positive socket contact (11) or the negative socket contact (12).

Le procédé de recharge électrique est mis en œuvre par un système comportant un module de supervision, une pluralité de bornes de recharge et un dispositif de compensation adapté pour injecter un courant de compensation dans le réseau de distribution, chaque borne de recharge étant configurée pour communiquer avec le module de supervision via une liaison de communication, le procédé comportant une obtention, à partir de chaque borne de recharge, d'une représentation spectrale du courant consommé par la borne, une détermination (72) d'une représentation spectrale globale du système de recharge à partir des représentations spectrales du courant consommé par borne de recharge et par rang spectral, un calcul (75) d'au moins un paramètre d'au moins un courant de compensation, en fonction de la représentation spectrale globale et d'au moins un seuil de dégradation de facteur de puissance prédéterminé. Le courant de compensation est injecté dans le réseau de distribution d'électricité.

Embodiments of the present disclosure provides a short-circuit protection circuit, including: a sampling resistor connected to a main loop, a parasitic inductance of the sampling resistor being adapted to generate an inductive signal based on a current in the main loop; a clamping circuit clamping a voltage of the inductive signal to a first threshold voltage to provide a clamping signal; a first compensation rectification circuit and a second compensation rectification circuit adapted to perform power factor compensation and rectification on the clamping signal to convert the clamping signal into an intermediate signal having a predetermined waveform; and an output circuit connected to the first compensation rectification circuit and the second compensation rectification circuit to receive the intermediate signal, and adapted to generate an output signal in response to a voltage of the intermediate signal being greater than a second threshold voltage to indicate that the main loop is short-circuited.

Il est proposé un appareil électrique (100) de moyenne tension, comprenant :- une paroi (20) configurée pour être à un premier potentiel électrique (V1),- un conducteur électrique (2) configuré pour être à un deuxième potentiel électrique (V2) différent du premier potentiel électrique (V1),- un tube (1) traversant la paroi (20) et entourant le conducteur électrique (2),- un manchon (3) en matériau isolant,dans lequel le manchon (3) entoure le tube (1) et est en contact avec une surface externe (4) du tube (1).

Il est proposé un tableau de distribution électrique (100) de moyenne tension, comprenant :- un ensemble de cellules (10-A, 10B),- une unité centrale (1) connectée à deux bus de communication (B1,B2) et configurée pour émettre une requête de coupure du courant,chaque cellule (10-A,10-B) comportant respectivement :- un premier capteur (5-A,5-B) configuré pour mesurer un premier paramètre physique représentatif du courant électrique,- une unité d'interface (2-A,2-B) connectée au premier bus (B1), configurée pour émettre vers l'unité centrale (1) le signal du premier capteur (5-A,5-B),- un deuxième capteur (6-A,6-B) configuré pour mesurer un deuxième paramètre physique représentatif de conditions de fonctionnement de la cellule (10-A,10-B),- une unité d'acquisition (3-A,3-B) connectée au deuxième bus (B2), configurée pour émettre vers l'unité centrale (1) le signal du deuxième capteur (6-A,6-B),l'unité d'interface (2-A,2-B) étant configurée pour couper le courant de la cellule (10-A, 10B) sur réception de la requête de coupure.

Le procédé de recharge électrique est mis en œuvre par un système comportant un module de supervision, une pluralité de bornes de recharge, chaque borne de recharge étant configurée pour communiquer avec le module de supervision via une liaison de communication, le procédé comportant une obtention (50), à partir de chaque borne de recharge, d'une représentation spectrale du courant consommé par la borne, une détermination (52) d'une représentation spectrale globale (Sg) du système de recharge à partir des représentations spectrales du courant consommé par borne de recharge et par rang spectral, un calcul (54) d'une valeur de dégradation du facteur de puissance du système de recharge en fonction de la représentation spectrale globale du système de recharge. Un coefficient de déclassement à appliquer (60) par au moins une des bornes de recharge est calculé (56, 57, 58) en utilisant la valeur de dégradation du facteur de puissance calculée.

An apparatus (ORC) for updating firmware of communication devices (CD) managed by a control device (CT) in an industrial system, the apparatus being configured to: store a table listing, at each entry of the table, at least an identifier (Idt) of a communication device (CD), an expected version (Ve) of firmware of the communication device (CD), a current version (Vet) of firmware of the communication device (CD), retrieve (S1) an identifier (Idr) of the communication device (CD) and a current version (Vcr) of firmware of said communication device (CD), scan (S2) incrementally the entries of the table, if the retrieved identifier (Idr) of the communication device CD matches an identifier (Idt) of the communication device (CD) of the entry of the table and if the retrieved current version (Vcr) of firmware matches a current version (Vct) of firmware of said entry of the table, retrieve (S3) a firmware package associated with the expected version (Ve) of firmware corresponding to said current version (Vct) of firmware of the entry of the table.

A power module for a solid-state circuit breaker, including: first and second substrates; first and second terminals; and a chip assembly disposed between the first and second substrates. The chip assembly includes: a plurality of bottom-side transistors having drains electrically coupled to a first substrate and including first and second sets of bottom-side transistors; a plurality of top-side transistors having drains electrically coupled to a second substrate and including first and second sets of top-side transistors; a gate drive board including bottom-side and top-side metal layers; and first and second metal connectors disposed on opposite sides of the gate drive board, the first metal connector being electrically coupled to sources of the first set of bottom-side transistors and the first set of top-side transistors, the second metal connector being electrically coupled to sources of the second set of bottom-side transistors and the second set of top-side transistors.

La présente invention concerne un déclencheur shunt à minimum ou manque de tension (1) pour un disjoncteur (2). Le déclencheur (1) comprend :- un bloc de charge (7), connecté électriquement entre une première borne (3) et une deuxième borne (5), comprenant une charge (16) configurée pour actionner le disjoncteur (2) ;- un module de protection (9), comprenant :• un thyristor de protection contre des surtensions (27) et une varistance (29), en série entre eux et en parallèle du bloc de charge (7) ; et• un premier condensateur (33), en parallèle de la varistance (29) ;- un élément fusible (15) et un premier fil résistif (11) en série entre eux, connectés entre la première borne (3) et le module de protection (9) ; et- un deuxième fil résistif (13), connecté entre le module de protection (9) et la deuxième borne (5).

The invention relates to a tower light assembly (TLA) for use with an industrial apparatus or process to indicate the status of the apparatus or process, comprising: at least one indicator light module (ILM) and a base module (BM) connected to a control device; the at least one indicator light module (ILM) comprising a module controller (MC), a light emitting element (LEE) and a screen (SCR); wherein the base module (BM) is configured to receive a base command from the control device, to generate an actuation command corresponding to the base command and to send the actuation command to the module controller (MC) of the at least one indicator light module (ILM); wherein the module controller (MC) is configured to interrogate a module data storage (MDS) to select a sign to display and a routine, based on the actuation command; wherein the module controller (MC) is configured to actuate the light emitting element (LEE) and the screen (SCR) according to the selected sign and the selected routine.

Cet ensemble de distribution (100), qui est configuré pour distribuer de l'énergie électrique provenant d'une source de puissance à au moins une charge électrique, comprend un bus de puissance (124) avec au moins une barre de phase, associée à une phase respective de la source de puissance, et éventuellement une barre de neutre. Un boitier principal (200), comprenant des moyens de coupure statiques (210) et des moyens de détection principaux (212), est agencé entre la source de puissance et le bus de puissance. Au moins un boitier de départ (300), configuré pour être connecté à une charge électrique respective et comprenant des moyens de coupure électromécaniques (310) et des moyens de détection secondaires (312), est connecté de manière réversible au bus de puissance.

Method and system for screening a device under test. A nest is configured for coupling to a device under test (DUT) and for receiving an output signal from the DUT during screening. A loop formed in an external conductor is positioned in proximity to the DUT. A test module compares the output signal of the DUT when the external conductor is not energized to the output signal of the DUT when the external conductor is energized and generating a magnetic field at the loop. The test module screens the DUT for a susceptibility to magnetic wrap-up effects based on the comparison.

A shielded current transformer having a magnetically permeable shield. The shield includes a magnetically permeable cup-shaped shell that is sized and shaped to receive a core and windings of a current transformer and a magnetically permeable washer-shaped cap for closing the cup-shaped shell. The shield is configured to shield the core from magnetic field lines generated external to the shield.

An assembly guide for a current transformer. A shell that is sized and shaped to receive a core of a current transformer has a plurality of grooves formed in an outer surface. The grooves are spaced apart in accordance with a predetermined winding distribution pattern such that portions of a winding wrapped around the core and the shell are positioned in selected grooves of the shell in accordance with the predetermined winding distribution pattern. The assembly guide also includes a snap-fit housing that includes a prong extending along a central axis of the housing. The prong is sized and shaped to fit in an opening in the core and configured for maintaining conductors in predetermined positions within the core opening.

A system includes an enclosure defining an interior space enclosed by a wall of the enclosure. Power electronics are disposed within the interior space. The power electronics can include at least one inverter configured to invert direct current (DC) power to alternating power, at least one voltage converter for boosting voltage from a DC source up to electrical panel voltage, at least one rectifier configured to rectify alternating current (AC) power to DC power, and at least one voltage converter for reducing voltage from electrical panel voltage to a battery charging level. Wall mounting features can extend from the enclosure, configured for mounting the enclosure to a wall surface. It is also contemplated that hinge components can extend from the wall of the enclosure so the enclosure can be hingedly mounted to an electrical panel as a door of the electrical panel.

Un dispositif de protection électrique (14) comprend un boîtier (330), pouvant être monté sur le rail d'un tableau électrique ; un module principal (300) et deux modules auxiliaires (400, 500), chaque module comprenant un chemin de conduction (470, 570) comprenant une borne d'entrée (472, 572), à une extrémité supérieure (340) du boîtier, une borne de sortie (474, 574), à une extrémité inférieure (338) du boîtier, et un contact mobile (476, 574), mobile entre une position de conduction et une position d'isolement ; un mécanisme de commutation (450, 550) pour basculer le contact mobile ; un déclencheur pour basculer le mécanisme de commutation sous l'effet d'un défaut électrique ; une manette de commutation. Le module principal comprend une chambre de coupure (100). Le dispositif comprend un composant fonctionnel (350, 352), choisi parmi un deuxième déclencheur et un système de surveillance. Les déclencheurs et la chambre de coupure sont adjacents aux bornes d'entrée, de sorte à être disposés entre les bornes d'entrée et le composant fonctionnel, le composant fonctionnel étant adjacent aux bornes de sortie et s'étendant sur toute la largeur du boîtier.

A generative pre-trained transformer (GPT) bot executing a knowledge retention engine configured to generate and retain a summary of immediate conversation history during and in between chat sessions for both single- and multiple-topic discussions. The GPT bot also executes a recommendation engine configured to recommend references of past discussion topics with the latest accepted summary and solutions based on the retained summaries.