DE703235C - Fault indicator for the voltage circuit of power measuring devices in three-phase three-wire systems - Google Patents
Fault indicator for the voltage circuit of power measuring devices in three-phase three-wire systemsInfo
- Publication number
- DE703235C DE703235C DE1939L0097842 DEL0097842D DE703235C DE 703235 C DE703235 C DE 703235C DE 1939L0097842 DE1939L0097842 DE 1939L0097842 DE L0097842 D DEL0097842 D DE L0097842D DE 703235 C DE703235 C DE 703235C
- Authority
- DE
- Germany
- Prior art keywords
- phase
- voltage circuit
- fault indicator
- voltage
- measuring devices
- 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
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/25—Arrangements for indicating or signalling faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Description
Störungsanzeiger für den Spannungskreis von Starkstrommeßgeräten in Drehstrom-Dreileitersystemen Starkstrommeßgeräte mit Meßwandlern kommen besonders fiir die Messung großer elektrischer Energiemengen in Anrvendung.Fault indicator for the voltage circuit of high voltage measuring devices in Three-phase three-wire systems, high-voltage ammeters with transducers come in particular for the measurement of large amounts of electrical energy in use.
Man ist dabei bestrebt, hierfür Zähler und Wandler von höchster Genauigkeit zu verwenden, um die unvermeidlichen Fehler, die einem derartigen Meßgerät anhaften, nach Möglichkeit auszuschalten. Zähler und Wandler müssen einem beglaubigungsfähigen System angehören, und außer den Zählern sollen in der Regel keinerlei andere Vorrichtungen an die Wandler angeschlossen werden. Handelt es sich um Messungen im Hochspannungslkreis einer elektrischen Anlage, so sind außer Stromwandlern auch noch Spannungswandler erforderlich Diese werden unter Zvischenschaltung von Sicherungen, deren Aufgabe darin besteht, bei Störungen im Wandler diesen von den Sammelschienen zu trennen, an die Hochspannungsleitungen angeschlossen.The aim is to use counters and converters of the highest accuracy for this purpose to use in order to avoid the inevitable errors inherent in such a measuring device switch off if possible. Meters and converters must be certified Be part of the system, and apart from the counters, no other devices should as a rule connected to the converters. Does it concern measurements in the high voltage circuit? an electrical system, in addition to current transformers, there are also voltage transformers required These are interconnected by fuses, their task consists of disconnecting the transformer from the busbars in the event of faults in the transformer, connected to the high voltage lines.
Die Sicherungen zwischen den Sekundärklemmen des Wandlers und den Meßgeräten sollen die Wandler vor Störungen schützen, die etwa in den Meßgeräten auftr, eten.The fuses between the secondary terminals of the converter and the Measuring devices are intended to protect the converters from interference, for example in the measuring devices appear.
Das Ab schmelzen von Sicherungen im Hochspannungs- oder auch im Niederspannungskreis wird aber nicht immer sofort erkannt. Auch die in bestimmten Zeitabständen erfolgenden Ablesungen lassen bei Großabnehmern oder bei Zusammenschluß von Elektrizitätswerken mit Bezug- und Abgabebelie£erung nicht sofort erkennen, ob Störungen im Meßaggregat eingetreten sind.,, Zur Überwachung von Unterbrechungen im Spannungskreis hat man deshalb Signalvorrichtungen eingebaut, wie eine solche aus Abb. 1 ersichtlich ist. Sie besteht aus zwei Glühlampen 1i und 12, die zwischen die Phasen und S bzw. T und S eingeschaltet sind und bei Unterbrechungen im Spannungskreis erlöschen. The melting of fuses in the high-voltage or also in the low-voltage circuit but is not always recognized immediately. Even those that take place at certain time intervals Readings can be obtained from bulk buyers or from a merger of electricity companies with supply and delivery delivery do not immediately recognize whether there are faults in the measuring unit have occurred. ,, To monitor interruptions in the voltage circuit one has therefore built-in signaling devices, such as one can be seen in Fig. 1. It consists of two incandescent lamps 1i and 12, which are between the phases and S and T, respectively and S are switched on and go out in the event of an interruption in the voltage circuit.
Eine weitere bekannte Anzeigevorrichtung zeigt Abb. 2, die aus einem dreipoligen Relaisr besteht. Bei Unterbrechung irgendeiner Stromphase wird das berreffende Relais stromlos, so daß der Anker, da er nicht mehr angezogen wird, abfällt, was durch Sichtbarnerden einer roten Marke nach außen in die Erscheinung tritt. Another known display device is shown in Fig. 2, which consists of a three-pole relay. With any interruption Current phase the affected relay is de-energized, so that the armature, since it is no longer attracted becomes, falls off, which is visible to the outside through a red mark occurs.
Alle diese Anzeigevorrichtungen lassen abe@ nur Unterbrechungen erkennen, die außerhalb des Zählers liegen. Störungen im Zähler, z. B. bei Unterbrechungen der Spannungsleitungen oder beim Schadhaftwerden der Spannuiigsspulen. werden nicht angezeigt. All of these display devices only allow abe @ to recognize interruptions, that are outside the counter. Malfunctions in the meter, e.g. B. in the event of interruptions the voltage lines or if the voltage coils become damaged. will not displayed.
Die Aufgabe der Erfindung besteht nun darin, eine Anzeigevorrichtung für die Starkstrommeßgeräte eines Drehstrom-Dreiieiter-Systems zu schaffen, die es ermöglicht, Störungen innerhalb der gesamten Meßeinrichtung, also auch im Zähler selbst. festzustellen. The object of the invention is now to provide a display device for the high-voltage ammeters of a three-phase three-wire system to create the it enables disturbances within the entire measuring device, including in the meter determine yourself.
Dies geschieht nun gemäß der Erfindung dadurch, daß in die für beide Spannungswicklunten gemeinsame Phase des Zählers ein auf den @' 3fachen Betrag des in einer Spannungswicklung fließenden Stromes ansprechendes Relais eingeschaltet ist, dessen Anker jedoch hei Verminderung auf den einfachen Betrag des genannten Stromes abfällt.This is now done according to the invention in that in the for both Voltage winding common phase of the meter to the @ '3 times the amount of the In a voltage winding current flowing responding relay switched on is, but its anchor is reduced to the simple amount of the above Current drops.
Die neue Anzeigevorrichtung ist in Abb. 3 veranschaulicht. Bekanntlich führt die mittlerc Spannungsphase S eines Drelleiterzählers den @ 3fachen Strom der beiden Außenphasen. Bemißt man das Relais p num so, daß der Relaisanker nur beim 1 fachen Strom angezogen wird, so hat man ein Mittel, um festzustellen, ob alle drei Phasen R, S, T Spannung führen. Ist in einer der drei Phasen eine Unterbrechung vorhanden. so führt die mittlere Phase S nicht mehr den @ 3 fachen Strom, was zur Folge hat, daß das auf den @ 3fachen Strom abgestimmte Relais den Anker fallen läßt. Es ist dabei vollkommen gleichgültig, ob die Störung im Zähler z oder außerhalb desselben liegt. The new display device is illustrated in Fig. 3. As is well known the mean voltage phase S of a three-phase meter carries @ 3 times the current of the two outer phases. If you dimension the relay p num so that the relay armature only when the current is attracted once, one has a means of determining whether all three phases R, S, T are live. Is an interruption in one of the three phases available. so the middle phase S no longer carries @ 3 times the current, which leads to The consequence is that the relay tuned to the @ 3-fold current drops the armature. It is completely irrelevant whether the disturbance in the counter z or outside same lies.
Das Störungsrelais ist so gebaut, daß die.The fault relay is built so that the.
Relaisspule nicht dauernd eingeschaltet bleiben muß, sondern durch einen federnden Kontakt k überbrückt ist. Die Kontaktfeder trägt einen nach außen ragenden Stift m, so daß durch einen Druck auf dessen Ende die Überhrückung gelöst und das Relais unter Strom gesetzt werden kann. Ist der Spannungskreis in Ordnung, dann wird der Relaisanker angezogen, wobei eine weiße Marke in Erscheinung tritt. Bei Störungen zeigt sich eine rote Marke.Relay coil does not have to stay on all the time, but through a resilient contact k is bridged. The contact spring carries you to the outside protruding pin m, so that the Überhrückung released by pressing on its end and the relay can be energized. If the voltage circuit is OK, then the relay armature is attracted, with a white mark appearing. A red mark appears in the event of a malfunction.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1939L0097842 DE703235C (en) | 1939-04-29 | 1939-04-29 | Fault indicator for the voltage circuit of power measuring devices in three-phase three-wire systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1939L0097842 DE703235C (en) | 1939-04-29 | 1939-04-29 | Fault indicator for the voltage circuit of power measuring devices in three-phase three-wire systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE703235C true DE703235C (en) | 1941-03-04 |
Family
ID=7288699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1939L0097842 Expired DE703235C (en) | 1939-04-29 | 1939-04-29 | Fault indicator for the voltage circuit of power measuring devices in three-phase three-wire systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE703235C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1004281B (en) * | 1954-01-25 | 1957-03-14 | Licentia Gmbh | Fault indicator for three-phase current meter |
DE1062811B (en) * | 1956-08-23 | 1959-08-06 | Francisco Sebastia Marti | Device for displaying malfunctions in an electricity meter |
DE973239C (en) * | 1951-12-27 | 1959-12-31 | Ericsson Telefon Ab L M | Test arrangement for voltage coils in three-phase alternating current meters with neutral conductor for unevenly loaded phases under load |
-
1939
- 1939-04-29 DE DE1939L0097842 patent/DE703235C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973239C (en) * | 1951-12-27 | 1959-12-31 | Ericsson Telefon Ab L M | Test arrangement for voltage coils in three-phase alternating current meters with neutral conductor for unevenly loaded phases under load |
DE1004281B (en) * | 1954-01-25 | 1957-03-14 | Licentia Gmbh | Fault indicator for three-phase current meter |
DE1062811B (en) * | 1956-08-23 | 1959-08-06 | Francisco Sebastia Marti | Device for displaying malfunctions in an electricity meter |
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