DE2155609A1 - DEVICE FOR MEASURING THE GENERATOR LOAD WITH SINGLE AND THREE-PHASE CURRENT GENERATORS - Google Patents
DEVICE FOR MEASURING THE GENERATOR LOAD WITH SINGLE AND THREE-PHASE CURRENT GENERATORSInfo
- Publication number
- DE2155609A1 DE2155609A1 DE19712155609 DE2155609A DE2155609A1 DE 2155609 A1 DE2155609 A1 DE 2155609A1 DE 19712155609 DE19712155609 DE 19712155609 DE 2155609 A DE2155609 A DE 2155609A DE 2155609 A1 DE2155609 A1 DE 2155609A1
- Authority
- DE
- Germany
- Prior art keywords
- winding
- phase
- load
- measuring
- generator
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
-
- 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
- G01R31/343—Testing dynamo-electric machines in operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Synchronous Machinery (AREA)
Description
Vorrichtung zum Messen der Generatorbelastung bei Ein- und Dreiphasenstrom abgebenden Generatoren Die Erfindung betrifft eine Vorrichtung zum Messen der Generatorbelastung bei Ein- und Dreiphasenstrom abgebenden Generatoren mit einem im Laststromkreis angeordneten Transformator.Device for measuring the generator load with single- and three-phase current Generating Generators The invention relates to a device for measuring the generator load in the case of single- and three-phase generators with one in the load circuit arranged transformer.
Bei Generatoren, die sowohl Ein- als auch Dreiphasenstrom abgeben können, ist es bisher üblich, jede Phase mit einem Lastmesser, d.h. im allgemeinen einem Amperemeter auszurüsten, wenn die Generatorbelastung überprüfbar sein soll. Die Verwendung und Überwachung mehrerer Amperemeter für einen Generator ist jedoch verhältnismäßig aufwendig. Es kommt noch hinzu, daß bei möglicher Phasenbelastung nur nach Berechnung die Gesamtbelastung erkennbar ist; schwankende Werte machen das unmöglich.For generators that deliver both single-phase and three-phase electricity it has hitherto been customary to monitor each phase with a load meter, i.e. in general to equip an ammeter if the generator load should be verifiable. The use and monitoring of multiple ammeters for one generator is however relatively expensive. There is also the fact that there is a possible phase load the total exposure can only be identified after calculation; make fluctuating values that impossible.
Aufgabe der Erfindung ist es daher, bei Ein- und Dreiphasenstrom abgebenden Generatoren eine Vorrichtung zum Messen der Generatorbelastung zu schaffen, bei der nur ein einziges Meßgerät vorhanden ist, auf dem sich die zusammengefaßte Generatorbelastung ablesen läßt, gleichgültig, ob der Generator als Einphasen-oder als Dreiphasengenerator betrieben wird,(ungleiche Phasenleistung).The object of the invention is therefore to deliver with one-phase and three-phase current Generators to provide a device for measuring the generator load which is only available with a single measuring device, on which the combined generator load can be read, regardless of whether the generator is a single-phase or a three-phase generator is operated (unequal phase power).
Zur Lösung dieser Aufgabe wird eine Vorrichtung der eingangs genannten A1* vorgeschlagen, die dadurch gekennzeichnet ist, daß auf der Primärseite zwei Wicklungen angeordnet sind, deren Windungszahl im Verhältnis von 3 t 2 steht, wobei die Wicklung mit der größeren Windungszahl mit einem Phasenleiter R in Reihe und die andere Wicklung, die der größeren Windungszahl entgegengesetzt ist, mit dem Mittel-Eunktsleiter MP in Reihe geschaltet ist, und daß die Sekundärwicklung mit einem Gesamt-Lastmesserverbunden ist.To solve this problem, a device of the type mentioned at the outset is used A1 * proposed, which is characterized in that two on the primary side Windings are arranged, the number of turns is in the ratio of 3 t 2, wherein the winding with the larger number of turns with a phase conductor R in line and the other winding, which is opposite to the larger number of turns, with the central point conductor MP is connected in series, and that the secondary winding is connected to an overall load meter.
Weitere Einzelheiten der Erfindung sind aus dem Schaltbild erkennbar.Further details of the invention can be seen from the circuit diagram.
Ein Ein- und Dreiphasenstrom abgebender Generator 1 weist in bekannter Weise drei Wicklungen 2, 3 und 4 auf. Im Laststromkreis ist ein Transformator 5 angeordnet, der auf der Primärseite zwei Wicklungen 6 und 7 hat, Die Windungszahl der Wicklung 7 ist zwei Drittel so groß wie die Windungszahl der Wicklung 6.A generator 1 which emits one-phase and three-phase current has a known Have three windings 2, 3 and 4. There is a transformer 5 in the load circuit arranged, which has two windings 6 and 7 on the primary side, the number of turns of winding 7 is two thirds as large as the number of turns of winding 6.
Die Wicklung 6 ist mit dem PhasenleiterR in Reihe geschaltet, während die Wicklung 7 mit dem Mittelpunktsleiter in Reihe geschaltet ist. Die-Wicklung 7 ist umgekehrt gewickelt wie die Wicklung 6.The winding 6 is connected in series with the phase conductor R while the winding 7 is connected in series with the neutral conductor. The winding 7 is wound the other way around than winding 6.
Die Sekundärwicklung 8 des Transformators 5 ist mit einem Lastmesser 9, beispielsweise einem Amperemeter verbundene Gibt der Generator Drehstrom ab (gleiche Ströme in den Phasen ROST; MP ohne Strom), 80 werden in der Primärwicklung 6 des Transformators 5 bei zOB0 1A Laststrom und drei Windungen 3 AW erzeugt. Das ergibt umgesetzt in unserem Beispiel Vollanschlag am Lastmesser, d.h. der Generator läuft mit Vollast.The secondary winding 8 of the transformer 5 is connected to a load meter 9, for example connected to an ammeter, the generator delivers three-phase current (same Currents in the phases ROST; MP without electricity), 80 will be in the Primary winding 6 of the transformer 5 at zOB0 1A load current and three windings 3 AW generated. That In our example, this results in a full stop on the load gauge, i.e. the generator runs at full load.
Gibt der Generator Wechselstrom ab(gleicher Strom in Phase R und MP; S, T ohne Strom), so werden in der Primärwicklung 6 des Transformators 5 bei z.B01A Laststrom und drei Windungen 3 AW erzeugt. Es fließt aber auch durch den MP 1A Laststromund erzeugt in der Wicklung 7 des Transformators 5, die umgekehrt der Wicklung 6 geschaltet ist und zwei Windungen hat, 2 AW. Diese 2 AW wirken nun den durch Primärwicklung 6 erzeugten 3 AW entgegen. Das resultierende 1 AW erzeugt am Lastmesser 1/3 des Vollausschlages.If the generator delivers alternating current (same current in phase R and MP; S, T without current), then in the primary winding 6 of the transformer 5 at e.g. 01A Load current and three windings 3 AW generated. But it also flows through the MP 1A load current and generated in the winding 7 of the transformer 5, which is reversely connected to the winding 6 and has two turns, 2 AW. These 2 AWs now work through the primary winding 6 generated 3 AW. The resulting 1 AW generates 1/3 of the load gauge on the load meter Full scale.
Diese Anzeige ist korrekt, da der Generator 1/3 der Drehstromleistung abgibt.This display is correct because the generator has 1/3 of the three-phase power gives away.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712155609 DE2155609C3 (en) | 1971-11-09 | 1971-11-09 | Device for measuring the generator load in single and three-phase generators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712155609 DE2155609C3 (en) | 1971-11-09 | 1971-11-09 | Device for measuring the generator load in single and three-phase generators |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2155609A1 true DE2155609A1 (en) | 1973-05-10 |
DE2155609B2 DE2155609B2 (en) | 1974-12-19 |
DE2155609C3 DE2155609C3 (en) | 1975-07-31 |
Family
ID=5824608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712155609 Expired DE2155609C3 (en) | 1971-11-09 | 1971-11-09 | Device for measuring the generator load in single and three-phase generators |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2155609C3 (en) |
-
1971
- 1971-11-09 DE DE19712155609 patent/DE2155609C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2155609C3 (en) | 1975-07-31 |
DE2155609B2 (en) | 1974-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |