摘要:
Die Erfindung bezieht sich auf eine Widerstandseinrichtung für Hochspannungsanlagen mit in derselben Achse zu einem Stapel aufeinandergeschichteten und mit Kontaktelementen untereinander verbundenen zylindrischen Widerstandsalementen mit unterschiedlichem Durchmesser, Um eine solche Widerstandseinrichtung so zu verbessern, daß sie einen relativ geringen Raumbedarf und eine hohe mechanische Festigkeit aufweist, sind innere Widerstände (6) wie äußere Widerstände (8) kreisringförmig ausgebildet; als Tragkörperausgeführte Kontaktelemente (2) weisen eine Mittenausnehmung (4) auf, die von einer Spannhülse (10) aus Kunststoff durchsetzt ist.
摘要:
An overvoltage protection device includes first and second electrically conductive electrode members (130, 120) and a varistor member (110) formed of a varistor material (172) and electrically connected with each of the first and second electrode members. The overvoltage protection device has an integral fail-safe mechanism operative to electrically short circuit the first and second electrode members about the varistor member by fusing the meltable member (140) in the overvoltage protection device (134) by using an electric arc. The overvoltage protection device further includes an electrically insulating spacer member (144) electrically isolating the fusing metal member (140) from the electrodes; the electric arc disintegrates the spacer member and extends across the gap (G1, G3 and G2) to fuse the meltable/fusing member (140).
摘要:
The present invention is to provide a non-solid conductive surge absorber, which comprises a non-solid conductor formed by evenly mixing a non-solid solvent and a conductive medium and filled in a shielding case thereof in a watertight manner, and a plurality of metal plates each mounted on the shielding case in a watertight manner with a first end inside the shielding case and a second end extended out of the shielding case. Therefore, when a surge is generated, the number of electric charges accumulated on the metal plate connected to a circuit due to the surge will cause the conductive medium evenly dispersed in the non-solid solvent to rapidly and electrically connect with each other, so that the electric charges can be discharged to a ground terminal through the non-solid conductor for efficiently preventing electronic components on the circuit from being damaged by the surge.
摘要:
Um einen Überspannungsableiter mit mindestens einer Funkenstrecke und einem dazu in Reihe geschalteten elektrischem Element, zu schaffen, der ein System mit möglichst nur einer Funkenstrecke und damit entsprechendem Ansprechverhalten bildet und das Folgestromlöschvermögen einer Mehrfachfunkenstrecke aufweist, wird vorgeschlagen, dass das elektrische Element aus einem Bauteil (2) mit zwei Elektroden (3,4) besteht, zwischen denen ein Granulat (5) aus elektrisch leitfähigem Werkstoff angeordnet ist, welches die Elektroden (3,4) elektrisch leitend miteinander verbindet, wobei der das Granulat (5) haltende Raum von einer temperaturfesten Isolierstoffhülle (6) umgeben ist.
摘要:
An overvoltage protection device includes first and second electrically conductive electrode members (130, 120) and a varistor member (110) formed of a varistor material (172) and electrically connected with each of the first and second electrode members. The overvoltage protection device has an integral fail-safe mechanism operative to electrically short circuit the first and second electrode members about the varistor member by fusing the meltable member (140) in the overvoltage protection device (134) by using an electric arc. The overvoltage protection device further includes an electrically insulating spacer member (144) electrically isolating the fusing metal member (140) from the electrodes; the electric arc disintegrates the spacer member and extends across the gap (G1, G3 and G2) to fuse the meltable/fusing member (140).
摘要:
Um einen Überspannungsableiter mit einem elektrischen Element, das aus einem Bauteil (2) mit zwei Elektroden (3,4) besteht, zwischen denen ein Granulat (5) aus elektrisch leitfähigem Werkstoff, insbesondere Graphitkörnern oder -kugeln, in loser Schüttung angeordnet ist, welches die Elektroden (3,4) elektrisch leitend miteinander verbindet, wobei der das Granulat (5) haltende Raum von einer temperaturfesten Isolierstoffhülle (6) umgeben ist, zu schaffen, der in einem Fehlerfall nicht explodiert, wird vorgeschlagen, dass in die Granulatschüttung ein Bestandteil eines Materials (11) eingebracht ist, welches bei höheren Temperaturen von mehr als 100 ° C sein Volumen derart vergrößert, dass die lose Granulatschüttung zu einer im Wesentlichen festen Granulatschüttung verdichtet ist.
摘要:
A surge arrester designed for use with lines of 2 kV or less has a housing (10) which, in combination with a cup-shaped gasket (25), an O-ring gasket (45) and a lid (20), seals a varistor element (30) inside against environmental contaminants such as water or pollutants.
摘要:
A surge arrester designed for use with lines of 2 kV or less has a housing (10) which, in combination with a cup-shaped gasket (25), an O-ring gasket (45) and a lid (20), seals a varistor element (30) inside against environmental contaminants such as water or pollutants.
摘要:
The surge arrester has an electrical element consisting of an electrical component (2) having two electrodes (3,4) between which a granulate (5) made of electrically conductive material such as graphite grains or balls, is arranged. A temperature-resistant insulating sheath (6) is arranged around the two electrodes. An intumescent material (11) based on expanded graphite, is introduced into the bed of granules at higher temperatures of more than 100[deg] C, such that the volume increases and the loose bed of granules is compressed to a fixed bed of granules.
摘要:
The over-voltage diverter has a discharger (1) and an electric element connected in series. The electric element has a component (2) with two electrodes (3,4). A pellet (5) made of electro conductive material is arranged between the electrodes. The pellet connects the electrodes with each other in electro conductive manner. The area holding the pellet is encircled by a temperature-resistant insulating material enclosure (6).