DE506798C - Device for remote display of the sum of electrical measured quantities, in which the individual measured quantities act on electricity meters - Google Patents

Device for remote display of the sum of electrical measured quantities, in which the individual measured quantities act on electricity meters

Info

Publication number
DE506798C
DE506798C DEST43395D DEST043395D DE506798C DE 506798 C DE506798 C DE 506798C DE ST43395 D DEST43395 D DE ST43395D DE ST043395 D DEST043395 D DE ST043395D DE 506798 C DE506798 C DE 506798C
Authority
DE
Germany
Prior art keywords
measured quantities
sum
remote display
individual
act
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
DEST43395D
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.)
FRANZ BESAS
Original Assignee
FRANZ BESAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FRANZ BESAS filed Critical FRANZ BESAS
Priority to DEST43395D priority Critical patent/DE506798C/en
Application granted granted Critical
Publication of DE506798C publication Critical patent/DE506798C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Description

Einrichtung zur Fernanzeige der Sunirne von elektrischen Meßgrößen, bei der die einzelnen Wleßgrößen auf Elektrizitätszähler einwirken Die Erfindung betrifft eine Einrichtung zur Fernanzeige einer Summe von elektrischen Meßgrößen, bei der die einzelnen Meßgrößen auf umlaufende Meßvorrichtungen einwirken, die je einen Gleichstromerzeuger antreiben. Dabei werden die von den verschiedenen Gleichstromerzeugern gelieferten Spannungen durch Hintereinanderschaltung summiert und durch ein Anzeigeinstrument gemessen.The invention relates to a device for remote display of a sum of electrical measured variables, in which the individual measured variables act on rotating measuring devices which each drive a direct current generator. The voltages supplied by the various direct current generators are added up by being connected in series and measured by a display instrument.

Bei der praktischen Verwendung einer solchen Vorrichtung müssen die von den einzelnen hintereinandergeschalteten Stromerzeugern gelieferten Spannungen in einem richtigen gegenseitigen Verhältnis stehen. Sollen beispielsweise die Leistungsmessungen zweier elektrischer Anlagen summiert werden, von denen die eine einen Stromwandler mit der Übersetzung 5:5 Ampere und die andere einen Stromwandler mit der Übersetzung 5o: 5 Ampere enthält, so wird man in beiden Anlagen einen Elektrizitätszähler für 5 Ampere in die Sekundärleitung des Stromwandlers einschalten. jeder von beiden Zählern treibt einen Stromerzeuger an, wobei beide Stromerzeuger hintereinandergeschaltet und an ein in der Ferne aufgestelltes Anzeigeinstrument angeschlosser) sind. Da man zweckmäßig in den beiden Anlagen zwei gleiche, normale Elektrizitätszähler für 5 Ampere-,[Nennstrom verwendet, muß dafür gesorgt werden, daß die von beiden Zählern angetriebenen Stromerzeuger bei gleichen Drehzahlen Spannungen liefern, die im Verhältnis 5: 5o stehen.In the practical use of such a device, the voltages supplied by the individual series-connected generators must be in a correct mutual relationship. If, for example, the power measurements of two electrical systems are to be summed up, one of which contains a current transformer with a ratio of 5: 5 amps and the other a current transformer with a ratio of 5o: 5 amps, then in both systems an electricity meter for 5 amperes is used Switch on the secondary line of the current transformer. Each of the two meters drives a power generator, both power generators being connected in series and connected to a remote display instrument. Since it is advisable to use two identical, normal electricity meters for 5 ampere -, [rated current in the two systems, it must be ensured that the power generators driven by both meters deliver voltages at the same speed with a ratio of 5: 5o.

Erfindungsgemäß wird das erforderliche Spannungsverhältnis dadurch hergestellt, daß bei den betreffenden Stromerzeugem der Kollektor so weit aus der neutralen Lage verdreht wird, daß die erzeugte Gleichspannung, bezogen auf die Einheit der Meßgröße (z. B. die Leistung i kW), gleich ist. Diese Einstellung kann ohne weiteres an dem fertigen Meßgerät vorgenommen werden, ohne daß die Drehzahl oder das Erregerfeld, die durch ineßtechnische Rücksichten festgelegt sind, geändert werden müssen.According to the invention, the required tension ratio is thereby made that the collector so far from the relevant power generator neutral position is rotated that the generated DC voltage, based on the unit the measured variable (e.g. the power i kW) is the same. This setting can be done without further be made on the finished measuring device without the speed or the excitation field, which are determined by ineßtechnischen considerations, changed Need to become.

Claims (1)

PATENTAINSPRUCH: Einrichtung zur Fernanzeige der Summe von elektrischen Meßgrößen, bei der die einzelnen Meßgrößen auf Elektrizitätszähler einwirken, die je einen Gleichstromerzeuger antreiben, wobei die von diesen gelieferten Gleichspannungen durch Hintereinanderschaltung summiert werden, dadurch gekennzeichnet, daß die Kollektoren einzelner Stromerzeuger so weit aus der neutralen Lage verdreht sind, daß die von den verschiedenen Stromerzeugern gelieferte Spannung, bezogen auf die Einheit der Meßgröße, gleich ist.CLAIM OF THE PATENT: Device for remote display of the sum of electrical measured quantities, in which the individual measured quantities act on electricity meters that each drive a DC generator, the DC voltages supplied by these being added up by being connected in series, characterized in that the collectors of individual electricity generators are so far from the neutral Position are rotated so that the voltage supplied by the various power generators, based on the unit of the measured variable, is the same.
DEST43395D 1927-10-27 1927-10-27 Device for remote display of the sum of electrical measured quantities, in which the individual measured quantities act on electricity meters Expired DE506798C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST43395D DE506798C (en) 1927-10-27 1927-10-27 Device for remote display of the sum of electrical measured quantities, in which the individual measured quantities act on electricity meters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST43395D DE506798C (en) 1927-10-27 1927-10-27 Device for remote display of the sum of electrical measured quantities, in which the individual measured quantities act on electricity meters

Publications (1)

Publication Number Publication Date
DE506798C true DE506798C (en) 1930-11-18

Family

ID=7464411

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST43395D Expired DE506798C (en) 1927-10-27 1927-10-27 Device for remote display of the sum of electrical measured quantities, in which the individual measured quantities act on electricity meters

Country Status (1)

Country Link
DE (1) DE506798C (en)

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