Abstract:
A fuse tester (20) that includes a plurality of contacts (22, 24) with one of the contacts (24) having pad portions (102, 104, 106) enabling connection with one spade (44, 46) of a plurality of sizes of fuses (28a, 28b, 28c) when the other spade (44, 46) is electrically connected to the other contact (22). The contact (24) has a length greater than the other contact (24) that can be a plurality of times longer. The contacts (22, 24) are anchored to a housing (26) that can be an integral part of a handle (36) of a fuse puller (32) having a pair of outwardly extending clamp arms (116, 118). A preferred puller (32) with built-in tester (20) disposes the contacts (22, 24) in an outer surface (84) of the handle (36) with the handle (36) and arms (116, 118) providing a handgrip (38) orienting the tester (20) for use when the handle (36) is grasped by a user (42) in a position enabling use of the puller (32) and tester (20). The handle (36) and arms (116, 118) are mirrored about a centerline (154) providing ambidextrous construction.
Abstract:
Die Erfindung bezieht sich auf einen Verschlussdeckel (30) zum Verschließen einer Gehäuseöffnung (90) in einer Gehäusewand (85) eines Sicherungsgehäuses (2) einer elektrischen Schaltanlage (1) mit einem Deckelteil (80), das die Gehäuseöffnung abdeckt. Erfindungsgemäß ist vorgesehen, dass der Verschlussdeckel ein Bedienelement (35) zum Entriegeln und Verriegeln des Verschlussdeckels in der Gehäuseöffnung aufweist und dass mit dem Bedienelement ein Klemmelement (40) in Verbindung steht, an dem ein umlaufender Dichtring (50) angebracht ist, der an die Kontur der Gehäuseöffnung angepasst ist, wobei das Klemmelement derart mit dem Bedienelement in Verbindung steht, dass das Klemmelement beim Verriegeln des Verschlussdeckels in Richtung Deckelteil (80) gezogen wird und der Dichtring zwischen Gehäusewand (85) und Klemmelement (40) unter Abdichtung des Verschlussdeckels verklemmt wird.
Abstract:
Um einen Sicherungsanbau (1) für eine Mittelspannungsschaltanlage mit einer Sicherungskammer (2) und einem Sicherungseinschub (3) zur Aufnahme einer Sicherung und eines Sicherungsstößels (4), weiterzubilden, welcher bei einer einfachen Konstruktion eine verbesserte Dichtung aufweist wird vorgeschlagen, dass der Sicherungsanbau (1) über wasserdichte Dichtungsmittel (7, 8, 9, 11, 12, 13) zwischen der Sicherungskammer (2) und dem Sicherungseinschub (3) sowie im Austrittsbereich des Sicherungsstößels (4) aus dem Sicherungseinschub (3) verfügt.
Abstract:
A fuse for a high voltage/high current application, such as a hydro-electric vehicle ("HEV") application is provided. The fuse employs a variety of arc quenching features to handle a large amount of arcing energy that is generated when such fuse is opened due to a fuse opening event. In one embodiment, an insulative substrate, such as a melamine substrate, is metallized with a fuse element. The fuse element extends to multiple surfaces of the substrate. A fuse opening portion of the element is located so that the arcing energy is forced to travel along multiple insulative planes, increasing an impedance across the opening of the element and decreasing the likelihood of a sustained arc. Also, the substrate and element are disposed in a sealed housing, which is packed in one embodiment with an arc quenching material, such as sand.
Abstract:
A fuse board (17) having fuses (3a, 3b, 3c) attached thereto is fixed right above an ac reactor (4) through a supporter (31). Since the board (17) is attached to the reactor (4) with a predetermined gap, not only the mounting space for the board (17), the supporter (31) and the reactor (4) can be saved, but also the length of a wiring for connecting the fuses (3a, 3b, 3c) to the reactor (4) can be reduced.
Abstract:
The present invention relates to (1) a switch housing assembly, (2) a fuse unit, (3) an electrical connector and (4) a connector housing. According to the fuse unit, two conductive adapters are connected with each other via an insulator, which may improve accuracy of the position of the insertion terminals as well as ensure stability of the two conductive adapters and insertion terminals during use so that the insertion terminals can be easily inserted into or extracted out of the mating terminals without damaging the mating terminals. The connector housing has an elastic arm, which is provided on the first sidewall. An elastic sheet is provided at a top end of the elastic arm. When the elastic arm is pressed, the elastic sheet may provide a supporting force for the elastic arm to prevent damages due to overpressure.
Abstract:
A fuse tester (20) that includes a plurality of contacts (22, 24) with one of the contacts (24) having pad portions (102, 104, 106) enabling connection with one spade (44, 46) of a plurality of sizes of fuses (28a, 28b, 28c) when the other spade (44, 46) is electrically connected to the other contact (22). The contact (24) has a length greater than the other contact (24) that can be a plurality of times longer. The contacts (22, 24) are anchored to a housing (26) that can be an integral part of a handle (36) of a fuse puller (32) having a pair of outwardly extending clamp arms (116, 118). A preferred puller (32) with built-in tester (20) disposes the contacts (22, 24) in an outer surface (84) of the handle (36) with the handle (36) and arms (116, 118) providing a handgrip (38) orienting the tester (20) for use when the handle (36) is grasped by a user (42) in a position enabling use of the puller (32) and tester (20). The handle (36) and arms (116, 118) are mirrored about a centerline (154) providing ambidextrous construction.
Abstract:
A fuse link auxiliary tube comprises at least one inner layer of paper, at least one layer of polymer film over the at least one inner layer of paper, and at least one outer layer of paper over the at least one layer of polymer film. The at least one inner layer of paper, the at least one layer of polymer film, and the at least one outer layer of paper are wound into a tube shape. An acrylate or acetate layer over the at least one outer layer of paper may be used to structurally reinforce the fuse link auxiliary tube. The paper may be high dielectric strength Kraft paper, fish paper, etc. The polymer film may be polyester film, e.g., MYLAR (R).
Abstract:
The invention relates to a method for the identification of the inoperability of fuses and to fuses equipped with said feature, which consist of a tubular or bar-shaped ceramic body as the fuse body. Said fuses have a fusible element extending between the pole caps situated on each front end and undergo a visible modification on account of the damage to the fusible element. If the fusible element is damaged as a result of an overvoltage, overload or a short-circuit, this cannot be identified as a result of the opacity of the ceramic body. According to the invention, the fusible element is surrounded or covered by a material, which is modified by the heat when the fusible element melts, in such a way that said material or the reaction products thereof permit the inoperability of the fuse to become visible over the entire surface of the fuse body, or at least at various points on the latter.