Schneider Electric

A contactor (100) includes a housing assembly (10) and a buffer member (50). The housing assembly (10) includes a first housing (11) and a second housing (12) which are installed together. The first housing (11) is provided with a receiving cavity (110), a fixed core (22) is installed in the receiving cavity (110), and a first limiting surface (221) is formed on the fixed core (22). A fixed contact (31) is installed on the second housing (12). The second housing (12) includes a second limiting surface (121) opposite to the first limiting surface (221), and the second limiting surface (121) is provided with a groove (1210). The buffer member (50) is disposed in the groove (1210) and abuts against the first limiting surface (221).

L'invention concerne un circuit de protection (2) comprenant : - un premier, un deuxième et un troisième transformateurs de courant couplés respectivement à une première ligne de phase, une deuxième ligne de phase et une troisième ligne de phase, - un transformateur de courant sommateur (16) ayant un côté primaire comprenant une première entrée (20) connectée au premier transformateur de courant, une première prise intermédiaire (22) connectée au deuxième transformateur de courant, une deuxième prise intermédiaire (24) connectée au troisième transformateur de courant, et une deuxième entrée (26) connectée au premier transformateur de courant, au deuxième transformateur de courant et au troisième transformateur de courant. Le circuit de protection comporte un premier thermofusible (18) connecté entre la première entrée du transformateur de courant sommateur et le premier transformateur de courant, et un deuxième thermofusible (28) connecté entre le troisième transformateur de courant et la deuxième prise intermédiaire.

A busbar protective grille includes a main body portion and a pair of side protective portions. The main body portion includes a first opening and a second opening. The first opening and the second opening are disposed on opposite sides of the main body portion and communicate with the interior of the main body portion. The first opening and the second opening are adapted to allow the plug-in assembly to pass through the main body portion, so that the plug-in assembly is electrically connected to the busbar at the second opening. The pair of side protective portions are disposed in parallel on opposite sides of the second opening and are coupled to the main body portion. The pair of side protective portions extend in the direction away from the first opening to shield the portion of the plug-in assembly contacting the busbar.

The invention relates to a method for controlling environmental conditions in an enclosed space occupied by living beings by delivering supply air with a controlled airflow and controlled temperature to at least one zone of the enclosed space, the method comprising: - capturing (S1) images from at least one infrared camera positioned to monitor the enclosed space; - analyzing (S2) the captured images to detect the number and location of the living beings within at least one zone of the enclosed space; - measuring (S3) a temperature of the living beings from the infrared camera data; - computing (S4) an airflow and/or temperature of supply air to be delivered to at least one zone based on at least the measured temperature and the number of the living beings; - selecting (S5) at least one zone for delivery of the supply air; and - adjusting (S6) the airflow and/or the temperature of the supply air delivered into the selected zone to achieve desired environmental conditions for the living beings.

A method for processing a current transformer signal is provided, the method including: obtaining a current transformer signal with a cycle; in each cycle of the current transformer signal, for each time point, calculating a ratio between an amplitude of the current transformer signal at the time point and an amplitude of the current transformer signal at the previous time point; determining, in each cycle of the current transformer signal, that a tailing exists in the current transformer signal based on the ratio being equal to a tailing threshold and lasting for a threshold time; and in each cycle of the current transformer signal, removing the tailing.

Embodiments of the disclosure provide an integrated power distribution apparatus and a power distribution cabinet. The integrated power distribution apparatus includes: a rack (1) including a receiving cavity (11) formed in the rack (1) and adapted to extend from an operation side of the rack (1) toward a wiring side of the rack (1); a plurality of functional modules (2) arranged in the receiving cavity (11 and coupled to the rack (1), and the plurality of functional modules (2) being arranged in an arrangement direction; a busbar (3) arranged on the wiring side of the rack (1) and coupled to and electrically connected to the plurality of functional modules (2); and a communication bar (4) arranged on the wiring side of the rack (1) and coupled to the plurality of functional modules (2).

A dual-power transfer switch (100) includes a support (10), an opening and closing mechanism (20), and a buffer mechanism (40). The opening and closing mechanism (20) includes a driving member (21) and a pivot shaft (22). The driving member (21) is provided with a first hole (211). The pivot shaft (22) is sleeved in the first hole (211) and non-rotatably engaged with the first hole (211). The pivot shaft (22) is pivotally connected to the support (10) to allow the driving member (21) to perform a closing rotation or an opening rotation around an axis of the pivot shaft (22). The buffer mechanism (40) includes a flywheel (42) and a one-way bearing (41). The flywheel (42) is sleeved on the pivot shaft (22) via the one-way bearing (41). The one-way bearing (41) is configured to allow the flywheel (42) to rotate along with the pivot shaft (22) when the driving member (21) performs the closing rotation.

An electrical switch (100) includes: a stationary contact assembly (1) including a stationary contact (11); a moving contact assembly (2) switchable between closed and open positions relative to the stationary contact assembly (1), and including a moving contact (21); an arc extinguishing chamber (3) including first and second groups of arc extinguishing grids (31,32), the first group of arc extinguishing grids (31) being closer to the stationary contact (11) than the second group of arc extinguishing grids (32), adjacent arc extinguishing grids in the respective first and second groups of arc extinguishing grids (31,32) being spaced apart from each other; and a pair of arc striking pieces (4), a first arc striking piece (41) being adjacent to the stationary contact (11), and a second arc striking piece (42) being adjacent to the moving contact (21) when the moving contact assembly (2) is in the open position, where the first and the second group of arc extinguishing grids (31,32) are arranged between the pair of arc striking pieces (4).

A contact assembly (100) includes: an arc extinguishing assembly (10) including an arc extinguishing grid group (13) located in an arc extinguishing chamber (801), and first and second arc guide plates (11, 12) located at two ends of the chamber (801); a fixed contact (20) connected to an inlet terminal (91), where the fixed contact (20) includes a U-shape structure including first and second segments (21, 22) opposite to each other, the first segment (21) is pivotally connected to a first pivot shaft (201), so that the fixed contact (20) is rotatable between a first closed position and a first open position, the second segment (22) is provided with a fixed contact point (221), and when the fixed contact (20) is in the first open position, a free end of the second segment (22) is close to the first arc guide plate (11); and a contact pressure member (40) elastically abutting against the fixed contact (20) to apply a force to the fixed contact (20) to move it towards the first open position.

A main circuit plug-in assembly (100) includes: a cover (10) including first and second openings (11, 12); a chuck (20) extending through the cover (10), where two ends of the chuck (20) protrude outwardly from the first and second openings (11, 12) respectively; a support member (30) detachably coupled to the cover (10) and including a third opening (33), a limiting groove (310), and a heat dissipation hole (32). The third opening (33) is disposed on a side of the support member (30) adjacent to the second opening (12) and is communicated with the interior of the support member (30). The limiting groove (310) is disposed on a side of the support member (30) away from the second opening (12) and allows a terminal bar (211) to be inserted therein and electrically connected to the chuck (20). The heat dissipation hole (32) is disposed on the side of the support member (30) away from the second opening (12), allowing air inside the support member (30) to exchange heat with the outside environment through the heat dissipation hole (32).