DE1010621B - Fine current fuse for high voltages - Google Patents
Fine current fuse for high voltagesInfo
- Publication number
- DE1010621B DE1010621B DEW17055A DEW0017055A DE1010621B DE 1010621 B DE1010621 B DE 1010621B DE W17055 A DEW17055 A DE W17055A DE W0017055 A DEW0017055 A DE W0017055A DE 1010621 B DE1010621 B DE 1010621B
- Authority
- DE
- Germany
- Prior art keywords
- fuse
- high voltages
- fusible
- low
- currents
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- 229910052756 noble gas Inorganic materials 0.000 claims 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000005530 etching Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010792 warming Methods 0.000 claims 1
- 208000001848 dysentery Diseases 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material 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
- H01H85/36—Means for applying mechanical tension to fusible member
Landscapes
- Fuses (AREA)
Description
Anmelder:Applicant:
Wickmann -Werke Aktiengesellschaft,
Witten/Ruhr-Annen, Annenstr. 113Wickmann -Werke Aktiengesellschaft,
Witten / Ruhr-Annen, Annenstr. 113
Helmut Burk, Witten/Ruhr,
ist als Erfinder genannt wordenHelmut Burk, Witten / Ruhr,
has been named as the inventor
der Abmessungen der Schichtwiderstände läßt sich die thermische Zeitkonstante der Sicherung den Erfordernissen entsprechend genau abstimmen. Schichtwiderstände werden sehr rationell hergestellt, so daß durch ihre Verwendung für den Bau der Sicherungen auch wirtschaftliche Vorteile erreicht sind.the dimensions of the film resistors can be used to determine the thermal time constant of the fuse coordinate accordingly. Film resistors are produced very efficiently, so that economic advantages are also achieved by using them for the construction of the fuses.
Der Aufbau der Sicherung ist in der Zeichnung beispielsweise dargestellt. In einem Isolierrohr 1 aus Glas, Keramik oder anderen Stoffen sind der Schmelzleiter 2, der Schichtwiderstand 3 und die Zugfeder 4 hintereinander angeordnet. Die freien Enden des Schmelzleiters und der Zugfeder sind mit den Kontaktkappen 5 fest verbunden. Die Kontaktkappen dienen zugleich dem Verschluß der Enden des Glasrohres. Schichtwiderstand und Zugfeder sind durch Weichlot 6 miteinander verlötet, dessen Schmelzpunkt vorbestimmt ist. Durch Überströme, die ein Mehrfaches, z. B. Sfaches des Nennstromes der Sicherung betragen können, erwärmt der Schichtwiderstand die Lötstelle 6. Beim Erweichen des Lotes reißt die Zugfeder die Trennstelle auseinander und unterbricht damit den Stromkreis. Der Schmelzleiter 2 ist mit dem Schichtwiderstand so abgestimmt, daß er bei Überströmen, z. B. Kurzschlußströmen, die über den 5fachen Nennstrom steigen, selbst abschmilzt. Auch in diesem Falle zieht die Zugfeder die Trennstelle beim Durchschmelzen auseinander. Zur Erhöhung der Kurzschlußfestigkeit der Sicherung ist es auch möglich, den Schmelzleiter 2 in bekannter Weise in ein Löschmittel zu betten, das beim Durchschmelzen entstehende Lichtbögen löscht.The structure of the fuse is shown in the drawing, for example. In an insulating tube 1 made of glass, Ceramic or other materials are the fusible link 2, the sheet resistor 3 and the tension spring 4 arranged one behind the other. The free ends of the fusible conductor and the tension spring are with the contact caps 5 firmly connected. The contact caps also serve to close the ends of the glass tube. The sheet resistor and tension spring are soldered together with soft solder 6, the melting point of which is predetermined. By overcurrents that are a multiple, e.g. B. times the rated current of the fuse the sheet resistance heats the solder joint 6. When the solder softens, the tension spring tears the separation point apart and thus interrupts the circuit. The fuse element 2 is with the Sheet resistance matched so that it is in the event of overcurrents, e.g. B. short-circuit currents over the Increase 5 times the rated current, melts itself. In this case, too, the tension spring pulls the separation point Melting apart. To increase the short-circuit strength of the fuse, it is also possible to embed the fusible conductor 2 in a known manner in an extinguishing agent that occurs when it melts through Extinguishes arcs.
Paten τλ ν s ρ r υ r. πGodparents τλ ν s ρ r υ r. π
Feinstromsicherung für hohe Spannungen, beiFine current fuse for high voltages, at
der ein Schmelzleiter mit einer unter Federzug stehenden, aufheizbaren Lotstelle angeordnet ist, dadurch gekennzeichnet, daß zur Aufheizung ein .Schichtwiderstand verwendet ist.which has a fusible link with a heated soldering point under tension, characterized in that a layer resistor is used for heating.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
für hohe SpannungenThe invention eliminates these difficulties in that a sheet resistor is built into the fuse to heat the solder joint under tension. Sheet resistors are not influenced by the size of the applied operating voltage, they are completely independent of the voltage, so that their use enables the production of fine current fuses for very high voltages. Another advantage is their low temperature coefficient, which means that they are only slightly dependent on the ambient temperature. By selecting the appropriate fine flow fuse
for high voltages
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW17055A DE1010621B (en) | 1955-07-09 | 1955-07-09 | Fine current fuse for high voltages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW17055A DE1010621B (en) | 1955-07-09 | 1955-07-09 | Fine current fuse for high voltages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1010621B true DE1010621B (en) | 1957-06-19 |
Family
ID=7595908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW17055A Pending DE1010621B (en) | 1955-07-09 | 1955-07-09 | Fine current fuse for high voltages |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1010621B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2827077A1 (en) * | 2001-07-06 | 2003-01-10 | Alstom | Excess current electrical motor/transformer protection having fusible circuit breaker polymer current limiter fusible ring connected outer tubing and spring removing contact when fuse operates. |
-
1955
- 1955-07-09 DE DEW17055A patent/DE1010621B/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2827077A1 (en) * | 2001-07-06 | 2003-01-10 | Alstom | Excess current electrical motor/transformer protection having fusible circuit breaker polymer current limiter fusible ring connected outer tubing and spring removing contact when fuse operates. |
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