DE967680C - Measurement converter in V connection - Google Patents

Measurement converter in V connection

Info

Publication number
DE967680C
DE967680C DEL8234A DEL0008234A DE967680C DE 967680 C DE967680 C DE 967680C DE L8234 A DEL8234 A DE L8234A DE L0008234 A DEL0008234 A DE L0008234A DE 967680 C DE967680 C DE 967680C
Authority
DE
Germany
Prior art keywords
legs
leg
windings
connection
converter
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
DEL8234A
Other languages
German (de)
Inventor
Karl Allmendinger
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL8234A priority Critical patent/DE967680C/en
Application granted granted Critical
Publication of DE967680C publication Critical patent/DE967680C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/38Instruments transformers for polyphase ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transformers For Measuring Instruments (AREA)

Description

Die Erfindung bezieht sich auf Meßwandler, insbesondere Spannungswandler, in V-Schaltung, die es in einfacher Weise gestatten, die Spannung bzw. Leistung eines Drehstromsystems zu ermitteln. Besonders bei mittlerer Spannung ist es üblich, sich zweier doppelpolig isolierter Spannungswandler in dieser Schaltart zu bedienen. Es ist unter Umständen von Nachteil, daß diese zwei voneinander getrennten Spannungswandler viel Raum beanspruchen.The invention relates to transducers, in particular voltage converters, in V-circuit, which allow it in a simple way to change the voltage or power of a three-phase system. Especially with medium voltage it is common to to use two double-pole isolated voltage transformers in this switching type. It is sometimes a disadvantage that these two voltage converters are separate from one another take up a lot of space.

Aufgabe der Erfindung ist es, die zwei benötigten Wandler in raumsparender Weise zusammenzubauen. Dies wird bei einem Meßwandler in V-Schaltung erfindungsgemäß dadurch erreicht, daß unter Anwendung eines für Spannungswandler in Sternschaltung an sich bekannten Fünfschenkelkernes mit Außenschenkeln halben Querschnittes im Vergleich zu den die Wandlerwicklungen tragenden Schenkeln die Wandlerwicklungen gegensinnig auf den dem Mittelschenkel benachbarten Schenkeln angeordnet sind, so daß die vektorielle Summe aus den in diesen vorhandenen halben Flüssen (0I/2 + 01I/2) in dem Mittelschenkel gleich den halben Einzelflüssen (0I/2, 01I/2) ist, und daß der Mittelschenkel ebenfalls nur den halben Querschnitt der die Wicklungen tragenden Schenkel hat.The object of the invention is to save the two converters required in a space-saving manner Way to assemble. This is according to the invention in a V-connection transducer achieved by using a for voltage converter in star connection known five-leg core with outer legs half cross-section in Compared to the legs carrying the converter windings, the converter windings are arranged in opposite directions on the legs adjacent to the central leg, so that the vector sum of the half flows present in these (0I / 2 + 01I / 2) in the middle leg is equal to half the individual flows (0I / 2, 01I / 2), and that the center leg also only has half the cross section of that carrying the windings Thigh has.

Durch die Vereinigung von zwei getrennten vollisolierten Einzelwandlern, die in V- Schaltung betrieben werden und deren Mittelschenkel nur den halben Querschnitt der bewickelten Schenkel besitzt, werden insbesondere bauliche und wirtschaftliche Vorzüge gegenüber den bisher bekannten Meßwandlern in V-Schaltung erzielt. Es gelingt hierbei den Wandler so zu bauen, daß eine optimale Raumausnutzung gegeben ist. Dies ist bei Einsatz eines solchen Wandlers in einer Schaltanlage äußerst wichtig, da die räumlichen Verhältnisse in den Innenraumanlagen meist sehr knapp bemessen sind und daher jeder Raumgewinn besondere Bedeutung erlangt. Außerdem bringt die Dimensionierung des Mittelschenkels eine Materialersparnis und damit eine Senkung der Herstellungskosten mit sich, wodurch eine erhöhte Wirtschaftlichkeit solcher Wandler gegeben ist. Die Verkleinerung des aktiven Wandlerteiles bewirkt auch eine Herabsetzung der Materialkosten für die den Wandler umgebenden Teile, wie Gehäuse, Isoliermittel u. dgl.By combining two separate, fully isolated single converters, which are operated in a V-circuit and their middle limb only half the cross-section the wrapped leg is particularly structural and economical Advantages over the previously known transducers in V-connection achieved. It succeeds to build the converter in such a way that an optimal use of space is given. this is extremely important when using such a converter in a switchgear because the spatial conditions in the indoor facilities are usually very tight and therefore every gain in space has a special meaning. Also brings the sizing the middle leg a material saving and thus a reduction in manufacturing costs with it, whereby an increased economic efficiency of such converters is given. the Reducing the size of the active converter part also results in a reduction in material costs for the parts surrounding the converter, such as the housing, insulating material and the like.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Der magnetische Kreis dieses Wandlers wird durch einen Eisenkern gebildet mit den fünf Schenkeln i -bis 5. Dabei tragen die Schenkel 2 und 4 die Wicklungen 6 und 7, die mit einem Ende an jeweils einer Phase des Drehstromsystems angeschlossen sind und deren anderen Enden zusammen mit der dritten Phase zu der geforderten V- Schaltung zusammengeschaltet sind. Die Schenkel =, 3 und 5 sind unbewickelt und haben einen Querschnitt, der halb so groß ist wie derjenige der bewickelten Schenkel 2 bzw. 4. Der Fluß im Schenkel 2 sei mit 01, der im Schenkel 4 mit 01, bezeichnet. Wegen der V-Schaltung der Wandlerwicklungen fließen durch den Mittelschenkel 3 dann die halben Flüsse 0, und 0u, also 0i/2 + 0a/2, jedoch ist infolge der Phasenlage (i2o°) dieser Flüsse deren vektorielle Summe nicht größer als die.halben Flüsse 0, bzw. 011, also gleich 0r/2 bzw. 01r/2. Den ganzen Wandler umgibt ein Gehäuse 8, das drei hier nicht gezeichnete Durchführungen für, die elektrischen Zuleitungen aufweist.An exemplary embodiment of the invention is shown schematically in the drawing. The magnetic circuit of this transducer is formed by an iron core with the five legs i -to 5. The legs 2 and 4 carry the windings 6 and 7, which are connected with one end to a phase of the three-phase system and the other ends together of the third phase are interconnected to form the required V-connection. The legs = 3, 3 and 5 are unwound and have a cross-section that is half the size of that of the wound legs 2 and 4 , respectively. Let the flow in leg 2 be labeled 01, and that in leg 4 be labeled 01. Because of the V-connection of the converter windings, half the fluxes 0 and 0u then flow through the center leg 3, i.e. 0i / 2 + 0a / 2, but due to the phase position (i2o °) of these fluxes, their vector sum is not greater than the half Flows 0 and 011, i.e. equal to 0r / 2 and 01r / 2. The entire converter is surrounded by a housing 8, which has three bushings, not shown here, for the electrical leads.

Claims (1)

PATENTANSPRUCH: Meßwandler in V-Schaltung, dadurch gekennzeichnet, daß unter Anwendung eines .für Spannungswandler in Sternschaltung an sich bekannten Fünfschenkelkernes mit Außenschenkeln (i, 5) halben Querschnittes im Vergleich zu den die Wandlerwicklungen tragenden Schenkeln (2, 4) die Wandlerwicklungen gegensinnig auf den dem Mittelschenkel (3) benachbarten Schenkeln (2, 4) angeordnet sind, so daß die vektorielle Summe aus den in diesen vorhandenen halben Flüssen (0i/2 ;- 0"/2) in dem Mittelschenkel (3) gleich den halben Einzelflüssen (0i/2, 0u/2) ist, und daß der Mittelschenkel (3) ebenfalls nur den halben Querschnitt der die Wicklungen tragenden Schenkel (2, 4) hat. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 188 243, 474 616, 598 677, 701383; britische Patentschriften Nr. 379 667, 397 856; »Brown Boveri Mitteilungen«, April/Mai 1941, S. 84 ff., Abb. 2, 4 und 7; »Mitteilungen aus dem Arbeitsgebiet der Koch & Sterzel Aktiengesellschaft«, Nr. 12, Abt. Transformatorenwerk, Sept. 1927, (Druckschrift VIII igg), S. 34; B. Hague, »Instrument Transformers«, Sir Isaac Pitman & Sons, London, 1936, S. 263, 269 und 27o.Claim: measuring transducer in V connection, characterized in that using a five-leg core known per se for voltage transformers in star connection with outer legs (i, 5) half cross-section compared to the legs (2, 4) carrying the transformer windings, the converter windings open in opposite directions the legs (2, 4) adjacent to the central leg (3) are arranged so that the vector sum of the half flows (0i / 2; - 0 "/ 2) present in these in the central leg (3) equals half the individual flows ( 0i / 2, 0u / 2), and that the center leg (3) also has only half the cross section of the legs (2, 4) carrying the windings 677, 701 383; British patents No. 379 667, 397 856; "Brown Boveri Mitteilungen", April / May 1941, pp. 84 ff., Figs. 2, 4 and 7; "Announcements from the field of activity of Koch & Sterzel Aktiengesellschaft «, No. 12, Dept. Transfo rmatorenwerk, Sept. 1927, (publication VIII igg), p. 34; B. Hague, "Instrument Transformers," Sir Isaac Pitman & Sons, London, 1936, pp. 263, 269 and 27o.
DEL8234A 1951-02-08 1951-02-08 Measurement converter in V connection Expired DE967680C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL8234A DE967680C (en) 1951-02-08 1951-02-08 Measurement converter in V connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL8234A DE967680C (en) 1951-02-08 1951-02-08 Measurement converter in V connection

Publications (1)

Publication Number Publication Date
DE967680C true DE967680C (en) 1957-12-05

Family

ID=7257443

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL8234A Expired DE967680C (en) 1951-02-08 1951-02-08 Measurement converter in V connection

Country Status (1)

Country Link
DE (1) DE967680C (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE188243C (en) *
DE474616C (en) * 1926-06-30 1929-04-08 Stettiner Chamotte Fabrik Act Firebox wall with cooling channels
GB379667A (en) * 1931-02-21 1932-08-22 Hugh Godfrey Nicholson Improvements in and connected with transformers of the static type
GB397856A (en) * 1931-11-21 1933-08-21 Hugh Godfrey Nicholson Improvements in and connected with transformers of the static type
DE598677C (en) * 1934-06-15 Aeg Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another
DE701383C (en) * 1938-11-23 1941-01-15 Aeg Bushing current transformer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE188243C (en) *
DE598677C (en) * 1934-06-15 Aeg Measuring transformer aggregate, consisting of current and voltage transformers, which are magnetically linked to one another
DE474616C (en) * 1926-06-30 1929-04-08 Stettiner Chamotte Fabrik Act Firebox wall with cooling channels
GB379667A (en) * 1931-02-21 1932-08-22 Hugh Godfrey Nicholson Improvements in and connected with transformers of the static type
GB397856A (en) * 1931-11-21 1933-08-21 Hugh Godfrey Nicholson Improvements in and connected with transformers of the static type
DE701383C (en) * 1938-11-23 1941-01-15 Aeg Bushing current transformer

Similar Documents

Publication Publication Date Title
DE967680C (en) Measurement converter in V connection
DE673370C (en) Stray field transformer for the operation of electric light tubes
DE539347C (en) Arrangement to achieve fine voltage levels on transformers with a brush set that can be rotated around the transformer core
DE2348397A1 (en) INDUCTIVE VOLTAGE CONVERTER
DE911760C (en) DC power transmission system with converters at the ends of the transmission line
DE626679C (en) Transformer with turns that are not linked to the entire magnetic flux
DE1129232B (en) Device for the electrodeless measurement of the electrical conductivity of fluids flowing in pipelines
DE967625C (en) Device serving as a percentage or blocking relay
DE1044262B (en) Three-phase choke coil, adjustable by direct current pre-magnetization
DE551879C (en) Unified voltage and current transformer
DE1035264B (en) Single-phase transformer, especially for supplying rail motors
DE638430C (en) Transformer with an auxiliary winding that is simply linked to the leakage flux of the working windings
CH136752A (en) Device for regulating the voltage of an alternating current network.
DE479507C (en) Combination coil for loading telecommunication lines with phantom operation
DE975004C (en) Arrangement for the operation of converters in which a circuit interruption takes place mechanically
DE697669C (en) Combined current and voltage converter
AT204636B (en) Device for error adjustment of voltage transformers
DE371590C (en) Load coil for a double intercom system
DE951743C (en) Winding for large transformers
DE396395C (en) Winding arrangement for transformers and reactors, in which the connection points of a winding limb are remote from the ends of the limb and parts of the winding limb are connected in parallel
DE412865C (en) Device to automatically switch off faulty sections in electrical distribution networks
DE478133C (en) Coil for simultaneous inductive loading of trunk and quad of telephone quad lines
AT209983B (en) Current limiting reactor
DE1096517B (en) Device for direct current seam welding, especially of pipes
DE975005C (en) Arrangement for the operation of power converters in which a circuit interruption occurs mechanically