Abstract:
Un equipo interruptor seccionador eléctrico de tres posiciones II-0-I mutuamente excluyentes, con posición II que energiza el circuito de carga, con posición 0 que desenergiza el circuito de carga y con posición I que aterriza circuito, que reduce el riesgo eléctrico al interactuar con un tablero eléctrico; comprende: un mando interconectado a un cuerpo, donde el mando incluye un mecanismo de agarre con un elemento de fijación de etiquetado eléctrico, un mecanismo de extensión, un mecanismo de bloqueo y etiquetas indicadoras; el cuerpo incluye un grupo de conductores eléctricos externos o terminales de conexión, un grupo de conductores eléctricos internos o polos, un conductor eléctrico de corto circuito de tierra, visualizadores de magnitudes eléctrica, indicadores luminosos, y mirillas para visualización de polos móviles; conductores eléctricos y contactos eléctricos interconectados con un eje de accionamiento y éste último a un mecanismo de transmisión de fuerza.
Abstract:
A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A tripping mechanism and control circuitry are provided to move the switchable contact to an open position in response to a predetermined electrical condition.
Abstract:
A compact fusible disconnect switch device includes a magnetic arc deflection assembly including at least a pair of magnets disposed about a switch contact assembly. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. Multiple pairs of magnets may apply magnetic fields in directions opposing one another to deflect magnetic arcs in different directions at more than one location in the switch contact assembly to facilitate high voltage DC operation.
Abstract:
An outdoor low-voltage fuse disconnector comprises terminals (11,12), a fuse body (2), stationary contacts (31, 32), an operating handle (6), insulators(19, 29), and a bottom plate (10). The fuse body (2) is mounted in a fuse body carrier(4).The bottom plate(10) is fixed with the left terminal (11), a rotation bracket (13) and the left stationary contact(31) via the left insulator (19), and the bottom plate (10) is fixed with the right terminal (12) and the right stationary contact (32) via the right insulator (29). The fuse body (2) is a contact fuse body, a metal grid arc extinguishing chamber (5) is provided below the right stationary contact (32), and a closing holding mechanism (8) is provided to hold the operating handle (6) in a closing position. When the fuse body carrier (4) is pulled down, the fuse body (2) will be pulled out along as a moving contact of the disconnector, forming an observable visible air isolation gap at the supply side and the load side. The disconnector is low in temperature rise and long in service life, strong in short-circuit current limiting capacity and breaking capacity high in reliability, easy to match, safe in isolation, convenient to operate and maintain, safe and reliable in outdoor operation and economical and effective.
Abstract:
A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A current detecting element, a tripping mechanism, and control circuitry are provided to move the switchable contact to an open position in response to predetermined electrical current conditions in the device.
Abstract:
A compact disconnect device includes a magnetic arc deflection assembly including at least one set of stacked arc plates and at least one magnet disposed adjacent switchable contacts and establishing a magnetic field across the stacked arc plates. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. The disconnect device may be a compact fusible disconnect switch device having dual sets of switch contacts in the same current path.
Abstract:
A panelboard for fusible switching disconnect devices. The panelboard includes a chassis coupled to a mounting enclosure. The mounting enclosure can be used indoors or outdoors. The chassis is configured to receive one or more fusible switching disconnect devices. Each of the fusible switching disconnect devices includes both a fuse and a circuit breaker-like disconnect in a single, relatively compact housing. The compactness of the housing allows the panelboard to provide a higher level of overcurrent interruption in a smaller sized mounting enclosure than conventional panelboards. For example, the panelboard can have an interruption per volume rating of at least about 33 amps per cubic inch, as compared to about 2 amps per cubic inch for most conventional panelboards.
Abstract:
The invention relates to a disconnecting switch (20) comprising a housing (22), a rocker (60) for receiving a fuse link (100) or a disconnecting plug (80) containing a receiving zone for a fuse link (100). According to the invention, the rocker (60) comprises a moveable conductable covering device (120) in order to make contact with a contact (102) in a fuse link (100). The rocker (60) is arranged in the housing (22) pivoting between an on-position and an off-position. A contact device comprising a contact element (32) is disposed in the housing (22) in such a way that the contact element (32) makes contact with the contact (102) in the fuse link (100) via the covering device (120) in the on-position in the rocker (60). The disconnecting switch (20) comprises a spring device (160) which on at least one side in relation to the housing is arranged in such a manner that it exerts a force onto the conductive covering device (120) counter to the direction in which the disconnecting plug (80) is inserted into the rocker (60). The intensity of said force depends on the shifting position of the rocker.
Abstract:
A switch for devices, which can be arranged with a fuse with a fuse-link or without a fuse, basically consists of a housing (1) having two equal halves (2), whereat both housings differ in that the housing with a fuse is extended for the width of a bed (3) for a fuse-link (4). In both halves (2) of the housing (1) there are beds (6, 7, 8) in the shape of ribs for fixed contacts (9, 10) and a contact (11) of the fuse-link (4). A moving contact (12) is guided in rib guides (13), supported by a spring (14) and directly controlled by a rod (15). On its opposite side the rod (15) reaches into a break handle (17), with which the switch is manually broken. The handle (17) has bearings on an axle (18) lying in both halves (2) of the housing (1). The rod (15) is near the handle (17) guided in each half (2) of the housing (1) by an arch-shaped rib (21), the centre of which lies in the centre of the axle (18). In both halves (2) of the housing (1) there are arch-shaped wings (26) near the axle (18) with the centre of their arch lying concentrically to the axle (18) or to the rib (21), which are arranged with an indentation (27) as a bed of the rod (15) with the contacts open. An arch (19) is eccentrically positioned with respect to the axle (18) or to the wing (26) so that in the position of the handle (17) with the electric contacts open, one end of the arch (19) lies near the limit fence (20) between the indentation (27) and the axle (18) and the opposite end of the arch (19) lies near the limit fence (20') on the imaginary arch-shaped extension of the wing (26) via the indentation (27). In the most open position of the handle (17), the rod (15) perfectly fits into the indentation (27) and the handle (17) is free of the force of the spring (14) exerted via the rod (15).
Abstract:
The invention relates to a fuse cutout (20) comprising a housing (22), a rocker (60) that receives a fuse insert (100) or a fuse plug (80) with a receiving section for a fuse insert (100). The rocker (60) is mounted in the housing (22) so that it can be pivoted between an on-position and an off-position . A spring (34) actuated contact device comprising a contact element (32) is mounted in the housing (22) in such a way that the contact element (32) contacts the fuse insert (100) via a counter-contact when the rocker (60) is in the on-position. The contact element (32) is linked with an input or output contact (24) of the fuse cutout via a flexible conductor (30). The fuse cutout (20) further comprises a stabilizing element (140) that is firmly linked with the housing of the fuse cutout either directly or indirectly and that is linked with the contact element (32) either directly or indirectly in such a manner that it has a stabilizing effect on the contact element (32) at least in a direction substantially vertical to the direction of the elastic force of the spring element (34).