DE876270C - Circuit arrangement for switching windings, in particular field coils in measuring instruments for switching over the measuring range - Google Patents
Circuit arrangement for switching windings, in particular field coils in measuring instruments for switching over the measuring rangeInfo
- Publication number
- DE876270C DE876270C DES23411A DES0023411A DE876270C DE 876270 C DE876270 C DE 876270C DE S23411 A DES23411 A DE S23411A DE S0023411 A DES0023411 A DE S0023411A DE 876270 C DE876270 C DE 876270C
- Authority
- DE
- Germany
- Prior art keywords
- switching
- windings
- circuit arrangement
- measuring
- field coils
- 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
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/002—Switches for altering the measuring range or for multitesters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
Die Erfindung befaßt sich mit einer Schaltungsanordnung für die Umschaltung von Wicklungen, insbesondere von Feldspulen bei Meßinstrumenten zur Meßbereichsumschaltung. Bei der Umschaltung] von Wicklungen, z. B. beim Übergang einer Parallelschaltung in eine Reihenschaltung, und umgekehrt, tritt die rufgabe auf, diese Umschaltung ahne Unterbrechung des Stromkreises durchzuführen. Insbesondere liegt diese Aufgabe bei Meßinstrumenten mit hoher Stromaufnahme vor, z. B. im Strompfad eines Dreheisenstrommessers. Hier werden zum Zweck der Bereichsumschaltung die beiden Feldspulen entweder parallel oder in Reihe geschatet. Bei den bekannten Schaltungsanordungen war bei Vorhandensein von zwei Vicklungen und zwei Stöpseln immer die Möglichkeit einer Unterbrechung des Stromkreises gegeben, sodaß dem Strom ausgesetzte Einrichtungen gefährdet wurden. The invention is concerned with a circuit arrangement for switching of windings, in particular of field coils in measuring instruments for switching over the measuring range. When switching] of windings, e.g. B. when transitioning a parallel connection In a series connection and vice versa, the call occurs, this switchover without interrupting the circuit. In particular, this task lies for measuring instruments with high power consumption, z. B. in the current path of a moving iron ammeter. Here the two field coils are either parallel for the purpose of range switching or shaded in series. In the known circuit arrangements was present There is always the possibility of an interruption with two Vicklungs and two plugs of the circuit so that facilities exposed to the current were endangered.
Die Erfindung sieht nun für diesen Zweck eine Schaltungsanordnung vor, bei der bei vorschriftsmäßiger Betätigung eine Unterbrechung des Strompfades nicht mögli"ch ist. The invention now provides a circuit arrangement for this purpose before, when operated according to the instructions, an interruption of the current path not possible.
Die erfindungsgemäße Lösung besteht darin, daß bei wahlweise parallel oder in Reihe zu schaltenden Wicklungen die beiden vorhandenen Schaltstöpsel] in beiden Schaltungen parallel liegen. The solution according to the invention is that at either parallel or in series to be connected windings the two existing switch plugs] in two circuits are parallel.
Ein weiterer Vorteil ist durch die Erfindung dadurch begeben, daß die Einhaltung einer bestimmten Reihenfolge in der Bedienung der Stöpsel nicht erforderlich ist. Ferner ermöglicht die räumliche Anordnung eine symmetrische Leitungsführung, wobei Hin- und Rückleitung jeder zu schaltenden Spule parallel geführt sind, so daß durch die Leitungen keine Streufelder gebildet werden. Another advantage is given by the invention that it is not necessary to adhere to a specific order in the operation of the plugs is. Furthermore, the spatial arrangement enables symmetrical cable routing, with the outward and return lines of each coil to be switched being routed in parallel, see above that no stray fields are formed by the lines.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. An exemplary embodiment of the invention is shown in the drawing.
Fig. I zeigt die beiden Wicklungen in Paral,lelschaltung und die Fig. 2 in Reilhenschaltung. Fig. I shows the two windings in paral, lelschluss and the Fig. 2 in series connection.
Es sind Stöpselklötze I, 2, 3 und 4 vorgesehen. There are plug blocks I, 2, 3 and 4 provided.
Die zu schaltenden Wicklungen haben die Bezeichnung 5 und 6.The windings to be switched are labeled 5 and 6.
Die Fig. 1 zeigt die Schaltung beispielsweise für einen 5-Ampere-Bereich, bei welchem die beiden Wicklungen parallel liegen. Dabei liegen, wie die Fig. 1 zeigt, die beiden Stöpsel 7 und 8 ebenfalls parallel. Fig. 1 shows the circuit for a 5 ampere range, for example, in which the two windings are parallel. Like FIG. 1 shows the two plugs 7 and 8 also in parallel.
In Fig. 2 ist z. B. der 2,5-Ampere-Bereich geschaltet, wobei die beiden Spulen 5 und 6 in Reihe liegen müssen. Auch in diesem Fall liegen- die beiden, Stöpsel 7 und 8 parallel. In Fig. 2, for. B. the 2.5 ampere range switched, with the both coils 5 and 6 must be in series. In this case too, the two Plugs 7 and 8 parallel.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES23411A DE876270C (en) | 1951-06-06 | 1951-06-06 | Circuit arrangement for switching windings, in particular field coils in measuring instruments for switching over the measuring range |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES23411A DE876270C (en) | 1951-06-06 | 1951-06-06 | Circuit arrangement for switching windings, in particular field coils in measuring instruments for switching over the measuring range |
Publications (1)
Publication Number | Publication Date |
---|---|
DE876270C true DE876270C (en) | 1953-05-11 |
Family
ID=7477366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES23411A Expired DE876270C (en) | 1951-06-06 | 1951-06-06 | Circuit arrangement for switching windings, in particular field coils in measuring instruments for switching over the measuring range |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE876270C (en) |
-
1951
- 1951-06-06 DE DES23411A patent/DE876270C/en not_active Expired
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