DE510588C - Fuse - Google Patents
FuseInfo
- Publication number
- DE510588C DE510588C DES92829D DES0092829D DE510588C DE 510588 C DE510588 C DE 510588C DE S92829 D DES92829 D DE S92829D DE S0092829 D DES0092829 D DE S0092829D DE 510588 C DE510588 C DE 510588C
- Authority
- DE
- Germany
- Prior art keywords
- fuse
- fuse wire
- sand
- tube
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004576 sand Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/38—Means for extinguishing or suppressing arc
Landscapes
- Fuses (AREA)
Description
Gegenstand der Erfindung ist eine Schmelzsicherung zur Abschaltung elektrischer Anlagen, insbesondere für Niederspannungsverteilungsnetze. The subject of the invention is a fuse for switching off electrical systems, especially for low voltage distribution networks.
Nach der Erfindung wird über dem bei Überlastung zum Abschmelzen kommenden Schmelzdraht eine dünne Schicht aus leicht schmelzender Masse angebracht/ die durch die Erwärmung des Schmelzdrahtes zum Erweichen kommt. Dadurch wird eine Masse aus isolierendem feinkörnigen Material, wie Sand, Glasstaub oder ähnlichem, freigegeben, die in den Lichtbogen des Schmelzdrahtes fällt und dessen Erlöschen mit Sicherheit herbeiführt.According to the invention, it will melt away in the event of an overload Fusible wire attached to a thin layer of easily melting mass / the through the heating of the fuse wire softens. This creates a mass made of insulating fine-grained material, such as sand, glass dust or the like, released, which falls into the arc of the fuse wire and its extinction with certainty brings about.
In der Zeichnung ist die Schmelzsicherung nach der Erfindung in zwei Ausführungsbeispielen dargestellt.In the drawing is the fuse shown according to the invention in two exemplary embodiments.
In Abb. ι ist der Schmelzdraht ι zwischen zwei Fassungsstücken 2 und 3 durch eine dünne Röhre 4 aus Isoliermaterial hindurchgezogen. Im oberen Teil der im Betriebe senkrecht aufgestellten Röhre befindet sich eine dünne Schicht 5 aus Wachs, über die inIn Fig. Ι is the fuse wire ι between two socket pieces 2 and 3 pulled through a thin tube 4 of insulating material. In the upper part of the company When the tube is set up vertically, there is a thin layer 5 of wax over which in
as die Röhre Sand 6 aufgefüllt ist. Wird nun der Schmelzdraht durch den ihn durchfließenden Strom zum Abschmelzen gebracht, so schmilzt zugleich auch durch die Stromwärme oder den Lichtbogen die Wachsschicht, so daß in den etwa sich bildenden Lichtbogen der über der Wachsschicht in die Isolierröhre eingefüllte Sand herabfällt und mit Sicherheit eine Unterbrechung des Stromkreises herbeiführt.as the sand 6 tube is filled. Will now the fuse wire melted by the current flowing through it, so At the same time, the wax layer melts due to the heat of electricity or the electric arc, like this that in the approximately forming arc over the wax layer in the insulating tube Filled sand falls and certainly an interruption of the circuit brings about.
Bei dem in Abb. 2 dargestellten Beispiel befindet sich der Schmelzdraht in einem U-förmigen Isolierrohr 7, dessen einer Schenkel eine Erweiterung 8 trägt, die mit Sand gefüllt ist. An der Erweiterungsstelle des Rohres 7 ist wieder eine dünne Scheibe aus leicht schmelzendem Material eingebracht.In the example shown in Fig. 2, the fuse wire is in one U-shaped insulating tube 7, one leg of which carries an extension 8, which is covered with sand is filled. At the extension point of the tube 7, a thin disk is again made easily melting material introduced.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES92829D DE510588C (en) | Fuse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES92829D DE510588C (en) | Fuse |
Publications (1)
Publication Number | Publication Date |
---|---|
DE510588C true DE510588C (en) | 1930-10-22 |
Family
ID=7517494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES92829D Expired DE510588C (en) | Fuse |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE510588C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1166324B (en) * | 1961-10-04 | 1964-03-26 | Bbc Brown Boveri & Cie | Circuit breaker with closed switching chamber |
-
0
- DE DES92829D patent/DE510588C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1166324B (en) * | 1961-10-04 | 1964-03-26 | Bbc Brown Boveri & Cie | Circuit breaker with closed switching chamber |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2532078A (en) | Fuse | |
DE510588C (en) | Fuse | |
US3213242A (en) | Current limiting fuse | |
US2270404A (en) | Fuse | |
DE604029C (en) | Electric fuse | |
US2137057A (en) | Thermocouple | |
GB191114803A (en) | Improvements in Fusible Cut-outs for Controlling Electric Circuits. | |
US3069520A (en) | Electric fuse construction | |
US1484198A (en) | Electrical fuse and method | |
DE659916C (en) | Electrical low-voltage fuse with a fusible conductor embedded in an arc-extinguishing powder | |
US1898099A (en) | Fuse | |
US1887695A (en) | Electrical distributing system | |
AT96896B (en) | Automatic electrical switch in plug form with fuse. | |
AT222204B (en) | High voltage fuse | |
AT109928B (en) | Automatic switch for all types of current also in plug form. | |
DE400146C (en) | Circuit breaker with a conductor connected in parallel to the tripping device with a high positive temperature coefficient | |
DE679444C (en) | Overcurrent carrier knife fuse | |
AT156764B (en) | Protective device for electrical machines and devices with high rated currents. | |
DE463190C (en) | Overcurrent protection device with temperature-dependent shunt resistor | |
US1693825A (en) | Resistance unit | |
US2678363A (en) | Plug-type lag fuse | |
GB514916A (en) | Improvements in or relating to methods for the protection of electrical circuits and installations against short-circuit currents | |
DE600017C (en) | Self-breaker with a contact pin which is immersed in mercury and is controlled by heat or electromagnetically | |
DE691251C (en) | Overcurrent carrier fuse cartridge with arc-extinguishing filling compound | |
DE512584C (en) | Electric fuse |