Abstract:
Lasttrennschalter (1), in dem für jede Stromphase (L) eine Schaltkontaktanordnung (2) vorgesehen ist, die mit einer zugehörigen Zugangsschiene (16) verbunden ist, welche an einer Rückseite eines Gehäuses (5) des Lasttrennschalters (1) zur Herstellung eines elektrischen Kontaktes mit einer stromführenden Schiene (SS) vorgesehen ist, wobei die Schaltkontaktanordnung (2) mittels einer an einer Frontseite des Gehäuses (5) angebrachten werkzeugsicheren Bedieneinheit (19) des Lasttrennschalters (1) schaltbar ist.
Abstract:
A switch assembly (1) for switching electric circuits comprises a contributory switch (3), a main switch (2), and a flexible element (4). The contributory switch (3) and the main switch (2) are connected electrically in series, the contributory switch (3) and the main switch (4) each comprise at least one movable contact and the flexible element is connected to one movable contact of the contributory switch, a first contact (5a), and one movable contact of the main switch, a second contact (6a).
Abstract:
A multiple switch MEMS structure has a higher resistance, higher durability switch arranged in parallel with a lower resistance, less durable switch. By closing the higher resistance, high durability switch before the lower resistance, less durable switch, the lower resistance, less durable switch is protected from voltage transients and arcing which may otherwise damage the lower resistance, less durable switch. By appropriate selection of dimensions and materials, the high resistance, high durability switch may be assured to close first, as well as open first, thereby also protecting the lower resistance, less durable switch from voltage transients upon opening as well as upon closing.
Abstract:
A contact spring arrangement has an elongated contact spring (9) with a rigid connection leg (12) which extends approximately parallel to the contact spring and which conducts the switching current in a direction opposite to the contact spring. On the side opposite to the connection leg (12), the contact spring has a contact piece (14) which co-operates with an opposite counter-contact element (18) provided with a contact piece (16). The repulsion forces between the connection leg (12) and the contact spring (9) are thus so increased that no welding of the contacts occurs, even at the highest short circuit currents, provided that the width of the gap between the contact spring (9) and the connection leg (12) be at least 20 times larger than the average spring spacing in the gap, when the contact pieces are made of silver or a silver alloy.
Abstract:
The present disclosure relates to an arc extinguishing chamber (170) for a switching device (100) comprising an arcing contact unit (160, 150, 140) and a main contact unit (165, 130, 120), each of the contact units including a movable contact (150, 130) and a stationary contact (140, 120), the arc extinguishing chamber (170) comprising a plurality of arc splitters (172) disposed with a distance to each other, each of the arc splitters (172) including a pair of arms and the plurality of arc splitters is arranged to form a passage (P) for the movable arcing contact, wherein the passage has a height. The height of the passage is adapted such that, when a current is switched off/ interrupted, the separation distance (h) of the arc contacts is longer than the one (H) of the main contacts and the movable arcing contact moves within the passage during the most part of the separation distance (h).
Abstract:
The present disclosure relates to switching device (1, 100, 200) for breaking an electric current comprising a main contact carrier (65, 165, 265), a movable main contact (30, 130, 230) and a stationary main contact (20, 120, 220), wherein the movable main contact (30, 130, 230) is attached to the main contact carrier (65, 165, 265), an arcing contact carrier (60, 160, 260), a movable arcing contact (50, 150, 250) and a stationary arcing contact (40, 140, 240), wherein the movable arcing contact (50, 150, 250) is attached to the arcing contact carrier (60, 160, 260) and the stationary arcing contact (40, 140, 240) is arranged in parallel with the stationary main contact (20, 120, 220), and an actuating unit (10, 110, 210) for actuating the main and arcing contact carriers (65, 165, 265; 60, 160, 260) from an open position to close position or vice versa at a actuating distance, wherein there are separation distances between the stationary and movable contacts of the main and arcing contact units respectively when the current is interrupted. The switching device further includes a first rack (90, 190, 290) and a first gear (80, 180, 280) for actuating the arcing contact carrier (60, 160, 260) so that, when interrupting the current, a separation distance between the arcing contacts (50, 150, 250; 40, 140, 240) is longer than a separation distance between the main contacts (30, 130, 230; 20, 120, 220).
Abstract:
개시된 기술은 기중 차단기에 관한 것으로, 일 단은 고정돌기를 형성하고 중심부에 길이 방향의 홈을 형성하며 아크의 이동경로를 제공하는 아크 가이더(Arc Guider), 주접점, 상기 주접점과 이격된 아크접점 및 삽입홈을 순차적으로 구비하고 상기 삽입홈은 상기 아크 가이더를 수용하는 고정자, 상기 삽입홈의 양단에 형성되며, 외부로부터의 힘을 통해 상기 수용된 아크 가이더 방향으로 굴절되어 상기 고정돌기가 빠져 나오지 않도록 하고, 상기 외부로부터의 힘에 의한 삼각의 V 자형 홈 자국들이 형성된 복수의 돌기 고정부들을 포함함으로써, 아크 가이더를 양방향으로 압착하여 고정함으로써 기중 차단기의 장시간 반복적인 개폐 동작에 의한 충격에도 불구하고 아크 가이더가 틀어지거나 고정자로부터 이탈하지 않으며, 고정자와 아크 가이더를 용접을 하지 않고 고정하여 기중 차단기의 제작 시간을 단축 시킬 수 있고, 제조 단가를 낮출 수 있다.
Abstract:
L'invention concerne un appareillage de coupure de courant comportant un jeu de contacts d'arc (32), un jeu de contacts de sectionnement (42) et un jeu de contacts permanents (52), une première branche (71) comportant les jeux de contacts d'arc et de sectionnement connectés en série, une deuxième branche (72) comportant le jeu de contacts permanents, les deux branches étant connectées en parallèle, comportant une première commande (61) et une deuxième commande (62), la première commande permettant de déclencher simultanément le basculement du jeu de contacts d'arc et du jeu de contacts permanents, la deuxième commande permettant de faire basculer le jeu de contacts de sectionnement entre ses deux positions uniquement lorsque le jeu de contacts d'arc et le jeu de contacts permanents se trouvent dans leur position ouverte, les deux commandes étant des commandes distinctes, la deuxième commande étant un bouton d' actionnement relié à un moteur électrique.
Abstract:
A multiple switch MEMS structure has a higher resistance, higher durability switch arranged in parallel with a lower resistance, less durable switch. By closing the higher resistance, high durability switch before the lower resistance, less durable switch, the lower resistance, less durable switch is protected from voltage transients and arcing which may otherwise damage the lower resistance, less durable switch. By appropriate selection of dimensions and materials, the high resistance, high durability switch may be assured to close first, as well as open first, thereby also protecting the lower resistance, less durable switch from voltage transients upon opening as well as upon closing.