DE828273C - Arrangement for the detection of bruises in electrical contacts - Google Patents
Arrangement for the detection of bruises in electrical contactsInfo
- Publication number
- DE828273C DE828273C DEP9026A DEP0009026A DE828273C DE 828273 C DE828273 C DE 828273C DE P9026 A DEP9026 A DE P9026A DE P0009026 A DEP0009026 A DE P0009026A DE 828273 C DE828273 C DE 828273C
- Authority
- DE
- Germany
- Prior art keywords
- bruises
- arrangement
- electrical contacts
- glow
- detection
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
Die Erfindung bezieht sich auf eine Prüfanordnung. mit deren Hilfe Prellungen elektrischer Kontakte, insbesondere von Relaiskontakten für Fernmeldeanlagen, festgestellt werden können. Zu diesem Zweck wurden bisher Oszillographen oder andere hochwertige Meßeinrichtungen verwendet. The invention relates to a test arrangement. with their help Bruises of electrical contacts, in particular of relay contacts for telecommunications systems, can be determined. For this purpose, oscilloscopes or others have hitherto been used high quality measuring equipment used.
Derartige Geräte stehen meist nur den Laboratorien zur Verfügung und erfordern inen hohen Anschaffungspreis. Die Oszillographen benötigen außerdem noch Fotopapiere und eine Anlage zu deren Entwicklung nach der fotografischen Aufzeichnung clcr Untersuchungsergebnisse. l)er Erfindung liegt die Aufgabe zugrunde. eine einfache und billige Prüfanordnung für den genannten Zweck zu schaffen, was dadurch erreicht wird. daß der zu untersuchende Kontakt parallel zu einer Glimmlampe geschaltet ist, die mit eine zweiten Glimmlampe in Hintereinanderschaltung mit einer Gleichstromquelle verhunden ist, deren Spannung dicht unterhalb der Summe der Zündspannungen beider Glimmlampen liegt. Hierfür finden also nach der Erfindung ausschließlich handelsübliche Einzelteile, die infolge ihrer Massenherstellung verhältnismäßig billig und daher auch ieicht ersetzbar sind, Verwendung. Die gesamte anordnung kann in einem kleinen Gehäuse zusammengebaut sein und besitzt so den Vorteil leichter Transportierbarkeit und damit einer jederzeitigen Verwendung an irgendeiner Stelle von in Betrieb befindlichen Anlagen.Such devices are mostly only available to laboratories and require a high purchase price. The oscilloscopes also need Photographic papers and a facility for developing them after photographic recording clcr test results. l) the invention is based on the object. a simple one and to create cheap test set-up for the stated purpose, which is achieved thereby will. that the contact to be examined is connected in parallel to a glow lamp, the one with a second glow lamp connected in series with a direct current source is connected, the voltage of which is just below the sum of the ignition voltages of both Glow lamps lies. For this purpose, according to the invention, only commercially available ones are found Items which, as a result of their mass production, are relatively cheap and therefore are also easily replaceable, use. The whole arrangement can be in a small one Housing be assembled and thus has the advantage of easy portability and thus a constant use at any point in operation Investments.
Die Zeichnung zeigt schematisch den schaltungsgemäßell Aufbau einer solchen Anordnung. Mit (; I und ( 2 sind zwei Glimmlampen bezeichnet, die in Reihe geschaltet mit einer Stromquelle, z. B. der Gleichstrombatterie B, verbunden sind, deren Spannung etwas unterhalb der Summe der Zündspannungen beider Glimmlampen liegt. Der zu untersuchende Kontakt k wird parallel zu einer der Glimmlampen. z. B. G 1. geschaltet. Es werden zweckmäßig Glimmlampen mit Xo Volt Zündspannung und 6o Volt Brennspannung benutzt. Die Zündspannung beider in Reihe geschalteten Glimmlampen beträgt daher 160 Volt. so daß die angelegte Spannung der Batterie B in der Größenordnung von etwa 150 Volt liegen müßte. Beim Schließen des Kontaktes k reicht die angelegte Spannung aus, um die Glimmlampe G 2 zu zünden. The drawing shows schematically the structure of a circuit according to the circuit such arrangement. (; I and (2 denote two glow lamps that are in series connected to a power source, e.g. B. the DC battery B, are connected, whose voltage is slightly below the sum of the ignition voltages of both glow lamps. The contact k to be examined is parallel to one of the glow lamps. z. B. G 1. switched. Glow lamps with an ignition voltage of Xo volts and 6o volts are expedient Burning voltage used. The ignition voltage of both glow lamps connected in series is therefore 160 volts. so that the applied voltage of the battery B is of the order of magnitude of about 150 volts. When the contact k closes, the applied Voltage off in order to ignite the glow lamp G 2.
Dadurch wird der Widerstand dieser Lampe erheblich herabgesetzt. Wird nun der zu untersuchende Kontakt durch das auftreten von Prellungen unterbroche. so kann auch die Glimmlampe G 1 zünden und zeigt durch ihr Anfleuchten die vorliegende Kontaktprellung an.This significantly reduces the resistance of this lamp. Will Now the contact to be examined is interrupted by the occurrence of bruises. in this way the glow lamp G 1 can also ignite and shows the present one by lighting it up Contact bruise to.
Ätit dieser Anordnung ist also ein sehr einfaches Mittel zur raschen und sicheren Feststellung auftretender Kontaktprel lungen gegeben, das sich insbesondere für eine Massenuntersuchung von Kontakten eignet. Um die Größe der Kontaktprellungen anzuzeigen, kann man ein hallistisches Instrument oder ein ähnliches Gerät verwenden. So Ätit this arrangement is a very simple means of rapid and reliable detection of any contact bruises that occur in particular suitable for a mass investigation of contacts. About the size of the contact bruises a hallistic instrument or similar device can be used.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP9026A DE828273C (en) | 1948-10-02 | 1948-10-02 | Arrangement for the detection of bruises in electrical contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP9026A DE828273C (en) | 1948-10-02 | 1948-10-02 | Arrangement for the detection of bruises in electrical contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE828273C true DE828273C (en) | 1952-01-17 |
Family
ID=7362042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP9026A Expired DE828273C (en) | 1948-10-02 | 1948-10-02 | Arrangement for the detection of bruises in electrical contacts |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE828273C (en) |
-
1948
- 1948-10-02 DE DEP9026A patent/DE828273C/en not_active Expired
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