DE327933C - Device for testing consumption lines for short-circuit currents - Google Patents
Device for testing consumption lines for short-circuit currentsInfo
- Publication number
- DE327933C DE327933C DE1919327933D DE327933DD DE327933C DE 327933 C DE327933 C DE 327933C DE 1919327933 D DE1919327933 D DE 1919327933D DE 327933D D DE327933D D DE 327933DD DE 327933 C DE327933 C DE 327933C
- Authority
- DE
- Germany
- Prior art keywords
- short
- circuit currents
- lines
- switch
- consumption lines
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
In der Patentschrift 323371 ist eine Einrichtung zum Prüfen von Verbrauchsleitungen 'auf Kurzschlußströme beschrieben, bei der derselbe über einen Nebenschal ter an die Yerbrauchsleitung angeschlossene Widerstand sowohl zur Feststellung der Kurzschluß freiheit als auch zum Dämpfen der beim Öffnen der Hauptschalter auftretenden Überspannungen dient. Bei der dort beschriebenen An-Ordnung muß für-jede Verbrauchsleitung ein besonderer Widerstand vorgesehen werden; Um für mehrere Verbrauchsleitungen mitIn the patent specification 323371 is a device for testing consumption lines 'Described on short-circuit currents, in which the same via a secondary scarf ter to the Resistance connected to the utility line to determine whether there is no short circuit as well as to dampen the overvoltages that occur when the main switch is opened serves. With the arrangement described there, one must be for each consumption line special resistance should be provided; In order for multiple consumption lines with
einem gemeinsamen .Widerstand auskommen zu können, werden erfindungsgemäß die Nebenschalter . im normalen Betrieb offen gehalten, und das mit jedem Hauptschalter in Reihe liegende Relais schließt bei Überlastungen zunächst 'den zugehörigen Nebenschalter und öffnet dann den Hauptschalter.A common .Widerstand to be able to get by, the secondary switches are according to the invention . kept open during normal operation, and the relay in series with each main switch closes in the event of an overload first 'the associated secondary switch and then open the main switch.
Eine Schaltung für zwei Verbrauchsleitun-, gen ist beispielsweise in der Figur dargestellt. A circuit for two consumption lines is shown in the figure, for example.
Die Stromerzeuger α arbeiten · einerseits auf die positiven Sammelschienen b, anderseits auf die Fahrschiene c. Die Bahnstrekken d, e werden über Hauptschalter f, g gespeist, denen die Neben schalter h, i parallel liegen. In Reihe mit den Selbstschaltern f, g liegen als Amperemeter ausgebildete Relais p und q. Die freien Klemmen der Nebenschalter sind durch Leitungen k über den Widerstand m, den Schalter η und den Stromzeiger 0 an die Sammelschiene b angeschlossen.The power generators α work on the one hand on the positive busbars b and on the other hand on the running rail c. The railway lines d, e are fed via main switches f, g , to which the secondary switches h, i are parallel. In series with the automatic switches f, g are relays p and q designed as ammeters. The free terminals of the secondary switches are connected to the busbar b by lines k via the resistor m, the switch η and the current pointer 0.
Tritt beispielsweise auf der Strecke d ein Kurzschluß auf, so wird das Relais p ansprechen und den Nebenschalter h sofort schließen und mit einer gewissen Verzögerung den Hauptschalter/ öffnen. In einem weiteren Zeitabständ- wird dann auch der Nebenschalter h wieder geöffnet, - um den Stromlauf über einen etwa bestehenden Kurzschluß zu unterbrechen.If, for example, a short circuit occurs on path d , relay p will respond and close secondary switch h immediately and open main switch / with a certain delay. In a further time interval, the secondary switch h is then also opened again - in order to interrupt the current flow via an existing short circuit.
Zur Prüfung auf Kurzschluß freiheit wird der Nebenschalter h wieder kurzzeitig eingelegt, und am Stromzeiger 0 ist dann erkennbar, ob der„ Kurzschluß noch besteht.-Wenn dies nicht der Fall ist, wird der Schalter/ geschlossen.To check that there is no short circuit, the secondary switch h is briefly inserted again, and the current pointer 0 then shows whether the “short circuit still exists. If this is not the case, the switch / is closed.
Demgemäß ist bei einer Störung immer nur eine Verbrauchsleitung über den Widerstand m und den Stronizeiger 0 an die Sammelschiene angeschlossen. Nur wenn zufälligerweise auf zwei Strecken gleichzeitig Kurzschlüsse auftreten, werden beide gleichzeitig über die Nebenschalter miteinander verbunden und gemeinsam zeitweise über den Widerstand'w und den Stromzeiger 0 gespeist. Dies widerspricht jedoch nicht dem angestrebten Zweck. Das Prüfen auf Kurzschlußfreiheit geschieht dann in der Weise, 6b daß zuerst eine Leitung, wie vorstehend beschrieben, geprüft und- angeschlossen, undAccordingly, in the event of a fault, only one consumption line is connected to the busbar via the resistor m and the current pointer 0. Only if, by chance, short-circuits occur on two lines at the same time, are both connected to one another at the same time via the secondary switch and temporarily fed together via the resistor and the current pointer 0. However, this does not contradict the intended purpose. The test for freedom from short circuits is then carried out in the manner 6b that first a line, as described above, is tested and connected, and
dann dieselben Schaltungen für die andere Leitung vorgenommen werden.then the same circuits can be made for the other line.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE327933T | 1919-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE327933C true DE327933C (en) | 1920-10-19 |
Family
ID=6185475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1919327933D Expired DE327933C (en) | 1919-08-06 | 1919-08-06 | Device for testing consumption lines for short-circuit currents |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE327933C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201868A1 (en) * | 1982-01-22 | 1983-08-11 | Arcus Elektrotechnik Alois Schiffmann GmbH, 8000 München | Arrangement for measuring the switch-on current to be expected in a disconnected power supply system |
-
1919
- 1919-08-06 DE DE1919327933D patent/DE327933C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201868A1 (en) * | 1982-01-22 | 1983-08-11 | Arcus Elektrotechnik Alois Schiffmann GmbH, 8000 München | Arrangement for measuring the switch-on current to be expected in a disconnected power supply system |
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