DE354061C - Device for detecting shunts in DC armatures - Google Patents

Device for detecting shunts in DC armatures

Info

Publication number
DE354061C
DE354061C DENDAT354061D DE354061DD DE354061C DE 354061 C DE354061 C DE 354061C DE NDAT354061 D DENDAT354061 D DE NDAT354061D DE 354061D D DE354061D D DE 354061DD DE 354061 C DE354061 C DE 354061C
Authority
DE
Germany
Prior art keywords
armatures
armature
shunts
detecting
handset
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
Application number
DENDAT354061D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of DE354061C publication Critical patent/DE354061C/en
Expired legal-status Critical Current

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
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/346—Testing of armature or field windings
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Description

Vorrichtung zum Feststellen von Nebenschluß bei Gleichstromankern. Gegenstand der Erfindung ist eine Anordnung, durch welche elektrische Gleichstromanker auf Schlußfreibeit geprüft werden können. Derartige Verfahren sind bereits bekannt. Sie haben jedoch gegenüber der bekannten 1leßvorrichtung den wesentlichen Nachteil, daß man bei Anwendung derselben immer einen Bremsmagneten (Transformator) benötigt. Dieses ist gegenüber der vorliegenden Erfindung von größter Bedeutung, da man nicht immer einen Magneten zur Verfügung hat und durch Heranschaffung desselben viel Zeit verlorengeht und besondere Arbeitslöhne entstehen. Das vorliegende Verfahren kann dagegen sofort und ohne weitere Mühe angewandt werden. 'Diese Vereinfachung dürfte vor allen Dingen für unterirdische Betriebe sehr wesentlich sein.Device for detecting shunts in direct current armatures. The invention relates to an arrangement by which electrical direct current armature can be checked at the final free time. Such processes are already known. However, compared to the known measuring device, they have the major disadvantage that you always need a brake magnet (transformer) when using the same. This is of the utmost importance compared to the present invention, since one does not always has a magnet available and a lot of time by having it available is lost and special wages arise. The present proceedings can on the other hand, can be applied immediately and without further effort. 'This simplification is likely especially important for underground operations.

Ferner kommt hinzu, daß durch die vorliegende Anordnung eine viel genauere Prüfung des Ankers möglich ist, als bei Verwendung eines Bremsmagneten, da sich jeder, auch der kleinste Isolationsfehler in dem Hörer bemerkbar macht.In addition, the present arrangement has a lot more accurate checking of the armature is possible than when using a brake magnet, since everyone, even the smallest insulation fault, is noticeable in the listener.

Durch Fortfall des Bremsmagneten (Transformator) erübrigt sich auch die Anwendung eines Eisenkerns in der mit dem Telephonbörer verbundenen Induktionsspule.The elimination of the brake magnet (transformer) also eliminates the need the application of an iron core in the induction coil connected to the telephone handset.

Das Prüfverfahren, welches in der Zeichnung dargestellt ist, besteht aus einem Telephonhörer a, welcher mit einer Induktionsspule b durch eine zweiädrige Leitung c verbunden ist. Anwendung: Lm nun eine schadhafte Stelle im ausgebauten Anker d ausfindig zu inachen,'prüft man den Kommutator e von r.ainelle zu Lamelle mit der Leitung f (Lichtl; itung), in welche eine Glühlampe g eingeschaltet ist, aus, wobei man die Induktionsspule b auf die betreffende Spule des Ankers d legt und dabei den Hörer a an das Ohr führt. Durch die zwischengeschaltete Lampe ä wird erstens das Vorhandensein des Stromes angezeigt und zweitens das eventuelle Verschmoren verhütet, was bei einer direkten Spannung von i to bzw. 22o Volt bei einer schlußhaltigen Stelle eintritt. Bei einer beschädigten oder schlußhaltigen Spule ist beim Ausprobieren des Ankers d im Hörer a nichts zu hören, während sich bei einer schlußfreien Stelle ein Klopfen im Hörer a bemerkbar macht, das bei schlußhaltigen Spulen durch dieÜberbrückung des Fernhörers verschwindet. Somit kann mit der vorliegenden Anordnung ein Anker in jeder Lage und an jeder Stelle ausprobiert werden, ohne daß man denselben, wie bereits gesagt, zu einem Magneten transportieren muß. Es tritt daher eine Zeitersparnis und auch eine Ersparnis des Magneten und des Eisenkerns in der Induktionsspule ein.The test method, which is shown in the drawing, consists of a telephone receiver a, which is connected to an induction coil b by a two-wire line c. Application: Now to find a damaged spot in the removed armature d, check the commutator e from r.ainelle to lamella with the line f (light line), in which an incandescent lamp g is switched on Induction coil b is placed on the relevant coil of the armature d and thereby leads the listener a to the ear. The interposed lamp ä firstly indicates the presence of the current and secondly prevents possible scorching, which occurs with a direct voltage of i to or 22o volts at a closed point. If the coil is damaged or closed , nothing can be heard when trying out armature d in handset a, while if the point is not connected, a knocking is noticeable in handset a, which disappears when the handset is bridged with closed coils. Thus, with the present arrangement, an armature can be tried out in any position and at any point without having to transport the same to a magnet, as already stated. There is therefore a saving of time and also a saving of the magnet and the iron core in the induction coil.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Feststellen von Nebenschluß bei Gleichstromankern, dadurch gekennzeichnet, daß eine mit einem Fernhörer (a) verbundene Spule (b) auf die jeweils zu untersuchende Ankerspule (d) gelegt wird, welche durch die jeweiligen Kommutatorseg!,mente (e) unter Strom gesetzt worden ist, so daß im Fernhörer (d) nur bei schlußfreien Spulen sich ein Klopfen bemerkbar macht, welches bei schlußhaltigen Spulen durch die Überbrückung .des Fernhörers verschwindet. Claim: Device for detecting shunts in direct current armatures, characterized in that a coil (b) connected to a remote receiver (a) is placed on the armature coil (d) to be examined, which is underneath the respective commutator segments (e) Current has been set so that in the remote handset (d) a knocking is only noticeable when the coils are closed, which disappears when the coils are closed due to the bridging of the remote handset.
DENDAT354061D Device for detecting shunts in DC armatures Expired DE354061C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE354061T

Publications (1)

Publication Number Publication Date
DE354061C true DE354061C (en) 1922-05-31

Family

ID=6286116

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT354061D Expired DE354061C (en) Device for detecting shunts in DC armatures

Country Status (1)

Country Link
DE (1) DE354061C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504395A (en) * 1943-12-21 1950-04-18 Lanagan And Hoke Inc Apparatus for testing armatures
US2890407A (en) * 1955-11-29 1959-06-09 Arthur M Huehn Armature testing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504395A (en) * 1943-12-21 1950-04-18 Lanagan And Hoke Inc Apparatus for testing armatures
US2890407A (en) * 1955-11-29 1959-06-09 Arthur M Huehn Armature testing device

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