DE109908C - - Google Patents
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- Publication number
- DE109908C DE109908C DENDAT109908D DE109908DC DE109908C DE 109908 C DE109908 C DE 109908C DE NDAT109908 D DENDAT109908 D DE NDAT109908D DE 109908D C DE109908D C DE 109908DC DE 109908 C DE109908 C DE 109908C
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- DE
- Germany
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- coils
- low
- voltage
- voltage coils
- measuring
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- 230000000694 effects Effects 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Für die in Patent 107110 beschriebene Anordnung zur Messung der' Arbeit eines Drehstromsystems ist es, wie daselbst erwähnt wurde, nothwendig, zwei Wattmeter zu combiniren, um den ,Formeln gerecht zu werden.For the arrangement described in patent 107110 It is used to measure the work of a three-phase system, as mentioned there It was necessary to combine two wattmeters in order to do justice to the formulas.
In der nachfolgend beschriebenen Anordnung eines Mefsinstrumentes ist es jedoch nach einer der angeführten Formeln möglich, auch mit einem Wattmeter die Arbeit richtig messen zu können, und zwar kann dies nach den im Haupt-Patent entwickelten Formeln 11 und 12 geschehen.In the arrangement of a measuring instrument described below, however, it is after a using the formulas listed, it is possible to measure the work correctly with a wattmeter can, namely according to the formulas 11 and 12 developed in the main patent happen.
Beiliegende Zeichnung stellt schematisch die Schaltung und Anordnung der Spulen dar.The accompanying drawing schematically shows the circuit and arrangement of the coils.
Es sind. zwei Schwachstromspulen S1 S'2 mechanisch auf einer gemeinsamen Achse gekuppelt, ferner sind zwei Starkstromspulen A B diesen . auf bekannte Weise gegenübergestellt, und zwar so, dafs, um der Formel Genüge zu leisten, jede Starkstromspule auf die beiden Mefsspulen gleichzeitig ihre Wirkung ausübt, dergestalt, dafs z. B. die Wirkung der Spule A auf S1 doppelt so stark ist als auf S2 und umgekehrt B nur mit halber Kraft auf S1 wirkt und mit doppelter auf S2. There are. two low-voltage coils S 1 S ' 2 mechanically coupled on a common axis, furthermore two high- voltage coils AB are these. contrasted in a known manner, namely in such a way that, in order to satisfy the formula, each high-voltage coil exerts its effect on the two measuring coils at the same time, in such a way that z. B. the effect of the coil A on S 1 is twice as strong as on S 2 and vice versa B only acts with half the force on S 1 and twice as much on S 2 .
Es werden also der Formel 12 gemäfs aus zwei Starkstromleitungen die Ströme durch die Spulen A und B geleitet, während die Schwachströme, von den entsprechenden Starkstromleitungen abgezweigt, über möglichst inductionsfreie gleichwerthige Widerstände durch die Mefsspulen in bekannter Anordnung geführt werden und sich mit dem dritten Schwachstrom in einem Punkte vereinigen.According to formula 12, the currents are passed through coils A and B from two high-voltage lines, while the low-level currents, branched off from the corresponding high-voltage lines, are passed through the measuring coils in a known arrangement via equal resistances that are as free of induction as possible and merge with the third low-level current unite one point.
Sind die Stellungen der Starkstromspulen AB so, dafs sie auf die eine Schwachstromspule nicht die- doppelte Wirkung ausüben wie auf die andere, so kann man nach Formel 10 durch entsprechende Justirung der Widerstände wl w* wz dennoch erreichen, dafs das System richtig zeigt.If the positions of the high- voltage coils AB are such that they do not have twice the effect on one low-voltage coil than on the other, then by appropriate adjustment of the resistances w l w * w z one can still achieve that the system shows correctly according to formula 10 .
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE109908C true DE109908C (en) |
Family
ID=379760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT109908D Active DE109908C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE109908C (en) |
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