The invention relates to an electrical junction interface (10) comprising a set of junction elements for electrical cables (620, 630, 640) for transporting high-voltage electricity, which interface is intended to be plugged into an electrical cabinet (101), the interface comprising a set of insulated busbars (21, 22, 23, 31, 32, 33, 41, 42, 43) that are grouped together into three bar assemblies (20, 30, 40), the bars, which are fixed and rigid, being configured to form an electrical contact between the junction elements and the cabinet so as to facilitate the interchangeability of the electrical cabinet. According to the main feature, the junction elements (520, 530, 540, 420, 430, 440, 102) are grouped into a fixed junction box (61), second contact pads (220, 230, 240) located at the second end of the three bar assemblies (20, 30, 40) being designed to be connected to one or two junction elements each. The invention also relates to a method for connecting and disconnecting the electrical cabinet to a network of cables for transporting high-voltage and/or high-amperage electricity.
A circuit for supplying electrical power at a rated direct current of 20-100 kA to an electrolysis cell is provided. The circuit comprises an upstream and a downstream busbar connected to each other with a short-circuiting device which, when closed by an actuating mechanism, allows the busbars to be electrically connected to each other. An anode bar is equipped with an anode connection interface and a cathode connection interface, for connection to the anode and cathode, respectively. The cathode connection interface is connected to the downstream busbar. The circuit comprises means for absorbing movement of elements of the circuit due to thermal expansion. A disconnector connected to the upstream busbar and to the anode bar is opened by an actuating mechanism and it electrically disconnects the upstream busbar and the anode bar from each other after a non-zero time interval Tm when the short-circuiting device has been closed.
Electric supply circuit (20) for supplying an electrolytic cell (21) with nominal direct current between 20 kA and 100 kA, comprising an upstream collection bar (25), a downstream collection bar (26), the two upstream (25) and downstream (26) collection bars being connected together by means of a short-circuiting device (22) which, when it is closed by the action of an actuation mechanism (229), allows the two collection bars to be electrically connected to each other in order to cut off the electric supply to the cell (21), an anode bar (213) which is provided with an anode connection interface (215) which is intended to be connected to the anode (211) of the cell, and a cathode connection interface (214) which is intended to be connected to the cathode (212) of the cell. According to the main features of the invention, the cathode connection interface is connected to the downstream collection bar by means of a flexible electric connector (27), the circuit comprises means for absorbing the movement of the different elements which constitute the circuit as a result of the thermal expansions and a disconnector (23) which is connected, on the one hand, to the upstream collection bar (25) and, on the other hand, to the anode bar (213), and the disconnector is opened by the action of an actuation mechanism (239) and electrically disconnects the upstream collection bar and the anode bar from each other after a time interval Tm which is not zero after the short-circuiting device has been closed, the time period Tm corresponding to the time needed for establishing the nominal current in the short-circuiting device (22).
Electric supply circuit (20) for supplying an electrolytic cell (21) with nominal direct current between 20 kA and 100 kA, comprising an upstream collection bar (25), a downstream collection bar (26), the two upstream (25) and downstream (26) collection bars being connected together by means of a short-circuiting device (22) which, when it is closed by the action of an actuation mechanism (229), allows the two collection bars to be electrically connected to each other in order to cut off the electric supply to the cell (21), an anode bar (213) which is provided with an anode connection interface (215) which is intended to be connected to the anode (211) of the cell, and a cathode connection interface (214) which is intended to be connected to the cathode (212) of the cell. According to the main features of the invention, the cathode connection interface is connected to the downstream collection bar by means of a flexible electric connector (27), the circuit comprises means for absorbing the movement of the different elements which constitute the circuit as a result of the thermal expansions and a disconnector (23) which is connected, on the one hand, to the upstream collection bar (25) and, on the other hand, to the anode bar (213), and the disconnector is opened by the action of an actuation mechanism (239) and electrically disconnects the upstream collection bar and the anode bar from each other after a time interval Tm which is not zero after the short-circuiting device has been closed, the time period Tm corresponding to the time needed for establishing the nominal current in the short-circuiting device (22).
Contact device adapted to be inserted between two contact surfaces of two conductors of an electrical connection provided with at least one bolt, the device being formed by a metal foam plate to reduce electrical resistance of the connection. The surface area of the metal foam plate is at least equal to the surface area in contact with the two conductors, and is approximately 1 to 2 mm thick. The metal foam plate includes at least one circular opening intended to contain the bolt and at least one first pre-cut located between the opening and an outer edge of the contact device. The pre-cut is made by cutting the foam plate over a part of its thickness so that it can be easily broken along the pre-cut, the pre-cut allowing the bolt to be passed through it during the installation of the contact device.
The invention relates to a source inverter (10) for current with an intensity between 1000 A and 40,000 A comprising three phases, intended to connect an electrical load (6) to a backup electrical power source (4) in the event of the failure of the main electrical power source (2), the source inverter comprising three poles per phase each connected to a fixed contact element (51, 52, 53). According to the main feature, the source inverter comprises, per phase, at least one movable contact element (61) in order to connect two poles of the same phase together through contact with two of the three fixed contact elements, the movable contact element (61) being adapted to move between two positions, a first position, in which the movable contact element (61) connects the electrical load (6) to the main electrical power source (2), and a second position, in which the movable contact element (61) connects the electrical load (6) to the backup electrical power source (6), the movable element (61) comprising two parallel flat conductors (612 and 614), in which a current circulates in the same direction when the source inverter is powered up so that an electrodynamic attraction effect mutually exists in the two flat conductors.
H01H 31/28 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs avec contact mobile demeurant électriquement connecté à une ligne en position d'ouverture de l'interrupteur avec contact à déplacement angulaire
H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
H01H 1/50 - Moyens pour accroître la pression de contact, empêcher la vibration des contacts, maintenir ensemble les contacts après l'entrée en contact, ou pour ramener les contacts à la position d'ouverture
H01H 1/60 - Moyens auxiliaires associés constructivement avec l'interrupteur pour nettoyer ou lubrifier les surfaces de contact
7.
CONTACT DEVICE ADAPTED TO FACILITATE THE REPAIR OF BOLTED ELECTRICAL CONNECTIONS
Contact device (10, 20, 30, 40, 50) adapted to be inserted between the two contact surfaces of two conductors (32 and 34) of an electrical connection provided with at least one bolt (37, 38, 39), the device being formed by a metal foam plate (11) in order to reduce the electrical resistance of the connection. According to the main features of the invention: - the surface of the metal foam plate is at least equal to the surface in contact with the two conductors, with its thickness being approximately 1 to 2 mm; - and the metal foam plate comprises at least one circular opening (12) intended to contain the bolt and at least one first pre-cut (18, 28) located between the opening and an outer edge of the contact device, the pre-cut being produced by cutting part of the thickness of the foam plate so that it can be easily broken along the pre-cut, the pre-cut allowing passage of the bolt during the installation of the contact device.
Contact device (10, 20, 30, 40, 50) adapted to be inserted between the two contact surfaces of two conductors (32 and 34) of an electrical connection provided with at least one bolt (37, 38, 39), the device being formed by a metal foam plate (11) in order to reduce the electrical resistance of the connection. According to the main features of the invention: - the surface of the metal foam plate is at least equal to the surface in contact with the two conductors, with its thickness being approximately 1 to 2 mm; - and the metal foam plate comprises at least one circular opening (12) intended to contain the bolt and at least one first pre-cut (18, 28) located between the opening and an outer edge of the contact device, the pre-cut being produced by cutting part of the thickness of the foam plate so that it can be easily broken along the pre-cut, the pre-cut allowing passage of the bolt during the installation of the contact device.
An electrical connection powder comprising particles obtained by pulverizing a skeleton of open cell metal foam chosen from the group consisting of iron, cobalt, nickel and the alloys of same covered with at least one coating of tin or indium or one of the alloys of same. The paste is formed from this powder dispersed in a binder such as grease. The powder or paste is particularity useful for improving the conductivity of an electrical connection consisting of a terminal (20) linked to a cable (24) consisting of a plurality of strands (30, 32, 34) by means of a crimping ring (26).
H01B 1/02 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement de métaux ou d'alliages
B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
H01B 13/00 - Appareils ou procédés spécialement adaptés à la fabrication de conducteurs ou câbles
H01B 1/16 - Matériau conducteur dispersé dans un matériau inorganique non conducteur le matériau conducteur comportant des métaux ou des alliages
H01R 13/03 - Contacts caractérisés par le matériau, p. ex. matériaux de plaquage ou de revêtement
H01R 4/30 - Connexions par serrageConnexions par ressort utilisant un organe de serrage constitué par une vis ou par un écrou
H01R 4/20 - Connexions conductrices de l'électricité entre plusieurs organes conducteurs en contact direct, c.-à-d. se touchant l'un l'autreMoyens pour réaliser ou maintenir de tels contactsConnexions conductrices de l'électricité ayant plusieurs emplacements espacés de connexion pour les conducteurs et utilisant des organes de contact pénétrant dans l'isolation effectuées uniquement par torsion, enroulage, pliage, sertissage ou autre déformation permanente par sertissage en utilisant un manchon de sertissage
11.
Electrical connection device having improved conductance
An electrical connection device, including two conductors (12 and 14), in which at least one of the two conductors is made of aluminum, each conductor has a contact surface, and a conductive element (1) is inserted between the contact surfaces of the conductors. The inserted conductive part has a foam skeleton having open cells of a metal selected from the group consisting of iron, nickel, and the alloys thereof, directly covered with at least one coating of copper, tin, indium or one of the alloys thereof.
H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes
H01R 4/30 - Connexions par serrageConnexions par ressort utilisant un organe de serrage constitué par une vis ou par un écrou
H01R 4/62 - Connexions entre des conducteurs constitués de matériaux différentsConnexions entre ou avec des conducteurs en aluminium avec ou sans âme en acier
H01R 13/03 - Contacts caractérisés par le matériau, p. ex. matériaux de plaquage ou de revêtement
H01R 43/26 - Appareils ou procédés spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation de connecteurs de lignes ou de collecteurs de courant ou pour relier les conducteurs électriques pour engager ou séparer les deux pièces d'un dispositif de couplage
H01R 11/12 - Pièces d'extrémité se terminant par un œillet, un crochet ou une fourchette
12.
ELECTRICAL CONNECTION DEVICE HAVING IMPROVED CONDUCTANCE
The invention relates to an electrical connection device, including two conductors (12 and 14), wherein in particular at least one of the two conductors is made of aluminium, each conductor has a contact surface, and a conductive element (10) is inserted between the contact surfaces of the conductors. The inserted conductive part consists of a foam skeleton comprising open cells of a metal selected from the group consisting of iron, cobalt, nickel, and the alloys thereof, directly covered with at least one coating of copper, tin, indium or one of the alloys thereof.
H01R 4/62 - Connexions entre des conducteurs constitués de matériaux différentsConnexions entre ou avec des conducteurs en aluminium avec ou sans âme en acier
H01R 13/03 - Contacts caractérisés par le matériau, p. ex. matériaux de plaquage ou de revêtement
13.
ELECTRICAL CONNECTION DEVICE HAVING IMPROVED CONDUCTANCE
The invention relates to an electrical connection device, including two conductors (12 and 14), wherein in particular at least one of the two conductors is made of aluminium, each conductor has a contact surface, and a conductive element (10) is inserted between the contact surfaces of the conductors. The inserted conductive part consists of a foam skeleton comprising open cells of a metal selected from the group consisting of iron, cobalt, nickel, and the alloys thereof, directly covered with at least one coating of copper, tin, indium or one of the alloys thereof.
H01R 4/62 - Connexions entre des conducteurs constitués de matériaux différentsConnexions entre ou avec des conducteurs en aluminium avec ou sans âme en acier
H01R 13/03 - Contacts caractérisés par le matériau, p. ex. matériaux de plaquage ou de revêtement
