Abstract:
In a method of connecting a rigid conductor piece (25) to a flexible conductor (17), an end portion (31) of the flexible conductor (17) is inserted into a recess (26) in the conductor piece (25). A piece of solder (33) is placed on an end face (27), in which the recess (26) opens, of the conductor piece. A separator piece (34) is also inserted between the piece of solder (33) and an electrode (35) by means of which a current can be supplied for heating purposes. When soldering takes place, the separator piece (34) remains as a fixed cover on the end face (27) of the conductor piece.
Abstract:
The invention relates to a vacuum switch, especially a vacuum circuit breaker, for medium and high voltages, comprising a mobile switch unit arranged inside a vacuum switch compartment (1) and provided with mutually mobile elements including a contact tappet (17), an insulator (18), and a driving or switching rod (11) introduced into the vacuum switch compartment (1) by means of metal bellows. Said vacuum switch also comprises a fixed contact inserted into the housing of the vacuum switch compartment (1). The upper end of the insulator (18) is fixed to the contact tappet (17), and the lower end of the insulator (18) is fixed to the driving or switching rod (11). The contact tappet (17) is connected to a conductor (8) by a flexible, electroconductive connection (20), said conductor being electroconductively connected to at least one laterally arranged output contact (6). The aim of the invention is to enable a simplified, more economical and improved design of a flexible conductive connection to the output contact. To this end, the inner cross-sectional surface of the vacuum switch compartment (1) is covered, at the level of the at least one output contact (6), around the contact tappet (17), by film-type or plate-type electroconductive covering elements (26) which are arranged over each other in layers and at least partially cover each other.
Abstract:
A vacuum switch suitable for a power receiving and distributing equipment in which the simplification and reliability of a structure is made compatible with each other, and a vacuum switchgear using the switch, wherein opening and closing parts are assembled in a vacuum container, a breaker, an earthing device, and a disconnecting switch each having an opening and closing part are provided, the vacuum container is divided at least into two chambers, and the opening and closing part of the breaker is installed in one chamber and the opening and closing parts of the earth device and disconnect switch are installed in the other chamber.
Abstract:
A switching contact system (11) for a low voltage power switch (1) has a bus bar (26) to which are secured cable-shaped flexible conductors (25). The flexible conductors (25) are mounted between a connection surface (30) of the bus bar (26) and an end piece (27) supported on the connection surface (30) of the bus bar (26) with at least two contact surfaces. The parts are interconnected by heat, for example by soldering or electron-beam welding.
Abstract:
A flexible shunt (23) in the form of a flexible member (25) made up of a stack of electrically conductive laminations (27) each of a thickness of no more than about 0.002 inch (0.051 mm) has a moveable end (25m) secured by a moveable mount (29) to a moveable contact support of an electric power switch for movement along a linear path (17). A fixed mount (37) secures the fixed end (25f) of the flexible member (25) to a fixed conductor termination (21) spaced laterally from the moveable end (25m) along a neutral axis perpendicular to the linear path (17) of the moveable end (25m) by an offset distance (j) such that the installed length (f) of the intermediate section (25i) between the fixed and moveable ends is less than the free length (f) of the intermediate section (25i). With this arrangement the stroke (55) of the moveable end along the linear path (17) can be up to at least 1/3 and even /2 of the free length (f) of the intermediate section (25i) of the flexible member (25) and with very low operating forces.
Abstract:
A flexible shunt (23) in the form of a flexible member (25) made up of a stack of electrically conductive laminations (27) each of a thickness of no more than about 0.002 inch (0.051 mm) has a moveable end (25m) secured by a moveable mount (29) to a moveable contact support of an electric power switch for movement along a linear path (17). A fixed mount (37) secures the fixed end (25f) of the flexible member (25) to a fixed conductor termination (21) spaced laterally from the moveable end (25m) along a neutral axis perpendicular to the linear path (17) of the moveable end (25m) by an offset distance (j) such that the installed length (f) of the intermediate section (25i) between the fixed and moveable ends is less than the free length (f) of the intermediate section (25i). With this arrangement the stroke (55) of the moveable end along the linear path (17) can be up to at least 1/3 and even /2 of the free length (f) of the intermediate section (25i) of the flexible member (25) and with very low operating forces.
Abstract:
A low-voltage power circuit breaker, comprising a vacuum chamber which contains at least one fixed contact and at least one moving contact which can be mutually coupled/uncoupled in correspondence of a closed/open condition of the circuit breaker, and actuation means which are operatively connected to the moving contact and provide the energy required to move the moving contact and to produce its coupling/uncoupling with respect to the fixed contact, said actuation means comprising an electromagnetic actuator.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen eines Strombandes (1), wobei das Stromband (1) mindestens ein massives Endstück (6) aufweist, an das ein flexibles Lamellenpaket (2) gekoppelt wird, wobei das Verfahren gekennzeichnet ist durch folgende Verfahrensschritte: - Bereitstellen zweier Endstücke (6) und eines Lamellenpaketes (2), wobei das Lamellenpaket (2) mindestens zwei übereinanderliegende Folien (3) aufweist, - Anlegen einer Stirnseite (4) des Lamellenpaketes (2) an eine Stirnseite (9) eines Endstückes (6), wobei zwischen den Stirnseiten (4, 9) ein Abstand von weniger als 1 mm, bevorzugt weniger als 0,5mm vorliegt und Fixieren der Lage zueinander, - Elektronenstrahlschweißen des Lamellenpaketes (2) mit dem Endstück (6), so dass jede Folie (3) mit ihrer Folienstirnseite im Wesentlichen vollflächig mit dem Endstück (6) stoffschlüssig gekoppelt wird
Abstract:
The invention relates to a medium voltage switchgear with an assembled pole part with integrated three-position switch, with pole part frames made of insulating material, between which a vacuum-interrupter is mounted, wherein the vacuum interrupter is provided with a fixed contact and a moving contact, so that one end of the frame is provided with a first support in order to fix the vacuum interrupter at the moving contact side, and fixation means for the fixed contact side at the other end of the frame. In order to to implement high technical functionality during reduction of the number of separate parts at same time, and additionally to implement a lower transmission resistance into the interconnection, the electrical connection between the movable part of the vacuum interrupter and the movable part of the two- or three-position switch is a mechanically flexible conductor element, and that the insulating pole part frames are provided with guiding means for the linear movable contact part of the two- or three- position switch, which are integrated into the pole part frames or the pole part frame arrangement.
Abstract:
Die Erfindung betrifft einen Schalterpol (1) für ein Stromnetz mit einem isolierenden Schalterpolgehäuse (2), in dem eine Schalteinrichtung (5) mit Fest- und Bewegkontakt angeordnet ist, deren Bewegkontakt (7) über den richtungsumkehrbaren Vorschub einer Schaltstange (10) zwischen ein- und ausgeschalteter Stellung bewegbar ist, wobei durch die Schalteinrichtung (5) im Einschalt zustand ein Eingangsanschlussstück (4) auf der Festkontaktseite elektrisch leitend mit einem Abgangsanschlussstück (13) auf der Bewegkontaktseite verbunden ist und wobei das Abgangsanschlussstück (13) über eine im Hohlquerschnitt des Schalterpols (1) verlegte, zwischen ihren gehaltenen Enden flexibel biegbare Verbindungseinrichtung (12) ständig leitend mit einem benachbarten Endbereich der Schaltstange (10) verbunden ist. Um vorzeitige Funktionsausfälle des Schalterpols (1) infolge von Beschädigungen der Verbindungseinrichtung (12) vermeiden zu können, sind die Biegelänge der Verbindungseinrichtung (12) und deren Verlegung zur Sicherstellung eines exakt reproduzierbaren Verformungsablaufs beim Schalten der Schalteinrichtung (5) unter Vermeidung einer übermäßigen Durchbiegung der Verbindungseinrichtung (12) infolge des Schaltstangenvorschubs auf den zu überbrückenden Abstand zwischen dem Endbereich der Schaltstange (10) und dem Abgangsanschlussstück (13) abgestimmt.