AT79765B - Automatic safety system for electrical linesAutomatic safety system for electrical cable networks. network. - Google Patents
Automatic safety system for electrical linesAutomatic safety system for electrical cable networks. network.Info
- Publication number
- AT79765B AT79765B AT79765DA AT79765B AT 79765 B AT79765 B AT 79765B AT 79765D A AT79765D A AT 79765DA AT 79765 B AT79765 B AT 79765B
- Authority
- AT
- Austria
- Prior art keywords
- safety system
- electrical
- linesautomatic
- network
- cable networks
- Prior art date
Links
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
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Selbsttätiges Sicherungssystem für elektrische Leitungsnetze.
Den Gegenstand der Erfindung bildet ein Sicherungssystem für elektrische Leitungsnetze.
Es wird durch die Erfindung bezweckt, Störungen, z. B. Isolationsfehler, an den Enden der betroffenen Netzteilstrecken zu signalisieren oder diese Teile automatisch abzuschalten oder beides zugleich bewirken. Die Erfindung ermöglicht es. schon das Entstehen einer Störung. z. B. eines Isolationsfehlers, streckenweise zu melden bzw. die Abschaltung zu bewirken, bevor der entstehende Fehler an Grösse bis zur gefährlichen Kurzschlüssen zunimmt.
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bekannte und in der Figur nicht weiter angegebene Mittel zur Signalisierung des Leitungsdefekte. * ! bzw. zur Abschaltung an den betroffenen Teilstreckenenden dienen.
Die Impedanzen 8 werden bei Wechselstromnetzen vorzugsweise nur induktiv ausgeführt,
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und an beiden Enden angeordnet, so dass von aussen her kommende schnelle elektrische Zustands- änderungen sich möglichst gleich in beiden Zweigen fortpflanzen und deshalb an den Funkenstrecken keine erhebliche Spannung besteht. Dies geschieht zu dem Zwecke, um die Wirkung des Systems auf die gestört Teilstrecke zu beschränken. Es ist jedoch auch denkbar. Impedanzen nur in dem einen Leiterzweige am einen und in dem anderen am anderen Streckenende je eine Impedanz anzuordnen.
Die Impedanzen 8 können aber auch. derart ausgeführt werden, dass sie schon auf den normalen Betriebsstrom eine gewisse Drosselwirkung ausüben, um den Enden der Funkenstrecke eine bestimmte betriebsmässige Spannung in Abhängigkeit von der Belastung der Teilstrecke hervorzurufen. Diese darf jedoch niemals an die Uberschlagsspannung herankommen, auf weiche die Funkenstrecke eingestellt ist.
PATENT-ANSPRÜCHE : i. Selbsttätiges Sicherungssystem für elektrische Leitungsnetze zur streckenweise Lokalisierung von Leitungsdefekten und Überspannungen, bei dem die Leiter in zwei oder mehrere parallele Zweige unterteilt sind, dadurch gekennzeichnet, dass zwischen die Leiterzweige an den Teilstreckenenden Durchbruchswiderstände (9) eingeschaltet sind. die beim Entstehen von Isolationsfehlern von durch plötzlichen Störungen stossweise hervorgerufenen Differenzen des elektrischen Zustandes zwischen den Leiterzweigen (Wanderwellen) durchschlagen werden und hiedurch den Fehler anzeigen oder die Teilstrecke abschalten oder beides zugleich bewirken.
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Automatic safety system for electrical line networks.
The subject of the invention is a security system for electrical line networks.
It is the purpose of the invention to eliminate disturbances, e.g. B. to signal insulation faults at the ends of the affected power supply sections or to switch these parts off automatically or to do both at the same time. The invention makes it possible. the emergence of a disturbance. z. B. an insulation fault, to report in parts or to cause the shutdown before the resulting fault increases in size to dangerous short circuits.
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means for signaling the line defects known and not further specified in the figure. *! or to switch off the affected sections of the route.
The impedances 8 are preferably only inductive in AC networks,
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and arranged at both ends, so that rapid electrical changes in state coming from outside are propagated as equally as possible in both branches and therefore there is no significant voltage at the spark gaps. This is done for the purpose of limiting the effect of the system on the disturbed section. However, it is also conceivable. Impedances to be arranged only in one branch of the line at one end of the line and an impedance in the other at the other end of the line.
The impedances 8 can also. are designed in such a way that they already exert a certain throttling effect on the normal operating current in order to produce a certain operational voltage at the ends of the spark gap depending on the load on the section. However, this must never come close to the surge voltage to which the spark gap is set.
PATENT CLAIMS: i. Automatic safety system for electrical line networks for localization of line defects and overvoltages in sections, in which the conductors are divided into two or more parallel branches, characterized in that breakdown resistors (9) are connected between the conductor branches at the ends of the sections. which, when insulation faults occur, are broken down by differences in the electrical state between the conductor branches (traveling waves) caused by sudden disturbances and thereby indicate the fault or switch off the section or cause both at the same time.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT79765T | 1914-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT79765B true AT79765B (en) | 1920-01-26 |
Family
ID=3601245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT79765D AT79765B (en) | 1914-10-12 | 1914-10-12 | Automatic safety system for electrical linesAutomatic safety system for electrical cable networks. network. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT79765B (en) |
-
1914
- 1914-10-12 AT AT79765D patent/AT79765B/en active
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