DE443085C - Operation of three transformers or groups of transformers, two of which are connected in series and the third in parallel with the other two - Google Patents

Operation of three transformers or groups of transformers, two of which are connected in series and the third in parallel with the other two

Info

Publication number
DE443085C
DE443085C DES64778D DES0064778D DE443085C DE 443085 C DE443085 C DE 443085C DE S64778 D DES64778 D DE S64778D DE S0064778 D DES0064778 D DE S0064778D DE 443085 C DE443085 C DE 443085C
Authority
DE
Germany
Prior art keywords
transformers
parallel
transformer
consumer
groups
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
DES64778D
Other languages
German (de)
Inventor
Walther Ith
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.)
Siemens Schuckertwerke AG
Original Assignee
Siemens Schuckertwerke AG
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 Siemens Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Priority to DES64778D priority Critical patent/DE443085C/en
Application granted granted Critical
Publication of DE443085C publication Critical patent/DE443085C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Description

Betrieb von drei Transformatoren oder Transformatorengruppen, von denen zwei in Reihe und der dritte parallel zu den beiden anderen geschattet ist. Beim Parallelbetrieb mehrerer Transformatoren, die einzeln oder in Gruppen in den Verzweigungen eines- elektrischem: Netzes liegen, sind mitunter besondere Anordnungen nötig, um eine Überlastung eines der Transformatoren zu vermeiden.. Die Erfindung bezieht skh auf einen solchen Fall, bei dem die Möglichkeit der überlastung eines Transfo,rmators oft gegeben ist. Die Transformatar.en i, 2, 3 sind, wie die Abbildung zeigt, im Ring geschaltet, d. h. die Transformatoren i und: 2 liegen in Serie zwischen den Sammelschienen q. und 8, und parallel zu diesen beiden liegt der Transformator 3. Zwischen den Transformatoren i und 2 liegt die Sammelschiene 6. Dem System wird durch die Zuleitung 5 Energie zugeführt. Statt eines einzelnen Transformators i, 2, 3 kann man sich natürlich auch eine Gruppe parallel geschalteter Transformatoren denken.. Ein einwandfreier Parallellauf von Transformatoren in dieser Anordnung ist, sobald die Kurzschlußspannung des Transformators 3 gleich der Summe der Kurzsehlußspannungen der Transformatoren. i und 2 bemessen wird, nur dann möglich, wenn alle Transformatoren voll belastet sind. Dies ist der Fall, wenn die Verbraucher 7 bzw. 9 eine der Belastung entsprechende Größe haben. Wenn nun bei konstanter Belastung 9 die Last bei 7 sinkt, so werden die Spannungsverhältinsse nicht mehr stimmen und ein Ausgleichstrom wird fließen, demzufolge Transformator 3 teilweise durch Transformator 2 entlastet wird; hierdurch wird Transformator 2 überlastet.Operation of three transformers or groups of transformers, of which two are shaded in series and the third parallel to the other two. When operating several transformers in parallel, which are individually or in groups in the Branches of an electrical: network are sometimes special arrangements necessary to avoid overloading one of the transformers .. The invention skh refers to such a case in which the possibility of overloading a Transfo, rmators are often given. The Transformatar.en i, 2, 3 are like the picture shows, connected in the ring, d. H. the transformers i and: 2 are in series between the busbars q. and 8, and parallel to these two is the transformer 3. Between the transformers i and 2 is the busbar 6. The system is through the feed line 5 energy is supplied. Instead of a single transformer i, 2, 3 you can of course also have a group of transformers connected in parallel think .. A perfect parallel operation of transformers in this arrangement is as soon as the short-circuit voltage of the transformer 3 is equal to the sum of the short-circuit voltages the transformers. i and 2 is dimensioned, only possible if all transformers are fully charged. This is the case when the consumer 7 or 9 is one of the loads have the appropriate size. If the load at 7 drops with constant load 9, so the voltage ratio will no longer be correct and an equalizing current will be flow, as a result of which transformer 3 is partially relieved by transformer 2; as a result, transformer 2 is overloaded.

Erfindungsger.Lä.ß wird nun in einer solchen Anordnung zwischen den konstanten. Verbraucher 9 und den Transformator 3 eine Drosselspule i o mit .einer Regelwicklung i 2 geschaltet, deren Spannung durch einen Stromwandler i i im Stromkreis des veränderlichen Verbrauchers 7 selbsttätig in Abhängigkeit von der bei diesem Verbraucher jeweils vorhandenen. Belastung geregelt wird. Die selbsttätige Regelung der Zusatzspannung kann durch Verwendung von Relais und Umschaltern erfolgen. Auf diese Weise wird von einem festen Spannungswert der Drosselspule aus, der in der Mitte der Grenzwerte der Regulierspannungen liegt, in an sich bekannter Weise eine Vergrößerung oder Verringerung der Drosselspannung herbeigeführt, indem eine positive oder negative Spannung der Drosselspule durch Umschalten zugesetzt wird. Der Stromwandler i i verändert die Drosselspannung proportional dem im Abzweig 7 abgegebenen Strom. Man kann nun die Wicklungen .der Drosselspüle und des Stromwandlers in solchem Verhältnis zueinander wählen, daß bei allen möglichen Schwankungen der Last im Abzweig 7 stets .eine den Leistungen der Transformatoren entsprechende Lastverteilung für alle drei Transfoxmatoren eintritt.Invention Ger.Lä.ß is now in such an arrangement between the constant. Consumer 9 and the transformer 3 a choke coil i o with .einer Control winding i 2 switched, its voltage through a current transformer i i in the circuit of the variable consumer 7 automatically depending on the one available for this consumer. Load is regulated. The automatic The additional voltage can be regulated by using relays and changeover switches. In this way, a fixed voltage value of the choke coil, which in the middle of the limit values of the regulating voltages lies, in a manner known per se an increase or decrease in the inductor voltage brought about by a positive or negative voltage of the choke coil is added by switching. The current transformer i i changes the inductor voltage proportionally to that in branch 7 delivered electricity. You can now see the windings of the choke coil and the current transformer choose in such a relation to each other that with all possible fluctuations the Load in branch 7 is always a load distribution that corresponds to the power of the transformers occurs for all three transfoxmators.

Sind mehrere Verbraucher 7, die aus verschiedenen Abzweigen. gespeist werden, vorhanden, und ist es nicht angängig, den Stromwandler an die diesen Abzweigen gemeinsame Sammelschiene anzuschließen, so legt man in jeden Abzweig, wie in der Schaltung punktiert eingezeichnet ist, einen Stromwandler i i'. Die Sekundärwicklungen aller Stromwandler sind parallel geschaltet und mit der freie. Wicklung der Drosselspule 12 verbunden.Are several consumers 7 coming from different branches. fed are available, and it is not possible to connect the current transformer to these feeders to connect a common busbar, so you put in each branch, as in the Circuit is shown dotted, a current transformer i i '. The secondary windings all current transformers are connected in parallel and with the free. Winding the choke coil 12 connected.

Claims (1)

PATRNTANSPRUCIi: Betrieb von drei Transformatoren oder Transformatorgruppen (i, 2, 3), von denen zwei (i und 2) in Reihe und der dritte (3) parallel zu den beiden anderen geschaltet ist und bei denen die Leistung zwischen den Transformatoren i und 3) zugeführt wird, während zwischen (2 und 3) konstante, zwischen (i und 2_) dagegen veränderliche Verbraucher liegen, dadurch gekennzeichnet, daß zwisah;en den konstanten Verbraucher (9) und Transformator (3) eine Drosselspule (io) mit einer Regelwicklung (12) geschaltet wird, deren Spannung durch einen Stromwandler (i i) im Stromkreis des veränderlichen Verbrauchers (7) selbsttätig in Abhängigkeit von der bei diesem Verbraucher jeweils vorhandenen 'Belastung geregelt wird. PATRNTANSPRUCIi: Operation of three transformers or groups of transformers (i, 2, 3), two of which (i and 2) are connected in series and the third (3) in parallel with the other two and in which the power is between transformers i and 3 ) while between (2 and 3) there are constant consumers, while between (i and 2_) there are variable consumers, characterized in that between the constant consumer (9) and the transformer (3) there is a choke coil (io) with a control winding (12) is switched, the voltage of which is automatically regulated by a current transformer (ii) in the circuit of the variable consumer (7) as a function of the load present in each case at this consumer.
DES64778D 1924-01-16 1924-01-16 Operation of three transformers or groups of transformers, two of which are connected in series and the third in parallel with the other two Expired DE443085C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES64778D DE443085C (en) 1924-01-16 1924-01-16 Operation of three transformers or groups of transformers, two of which are connected in series and the third in parallel with the other two

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES64778D DE443085C (en) 1924-01-16 1924-01-16 Operation of three transformers or groups of transformers, two of which are connected in series and the third in parallel with the other two

Publications (1)

Publication Number Publication Date
DE443085C true DE443085C (en) 1927-04-13

Family

ID=7497478

Family Applications (1)

Application Number Title Priority Date Filing Date
DES64778D Expired DE443085C (en) 1924-01-16 1924-01-16 Operation of three transformers or groups of transformers, two of which are connected in series and the third in parallel with the other two

Country Status (1)

Country Link
DE (1) DE443085C (en)

Similar Documents

Publication Publication Date Title
DE1962358C3 (en) Transformer for an arc welding machine
DE443085C (en) Operation of three transformers or groups of transformers, two of which are connected in series and the third in parallel with the other two
DE3420196A1 (en) SWITCHING POWER SUPPLY
DE470324C (en) Device for the optional conversion of electrical work from constant AC voltage into work from constant current or vice versa
DE1904737C3 (en) DC power source for arc welding with a single multiphase transformer
DE651005C (en) Multi-phase transformer arrangement for regulating the mains voltage according to size and phase
DE860084C (en) Magnetically regulated rectifier used to charge a battery
DE911038C (en) Power transformer with a device for reactive power compensation
DE642511C (en) Arrangement for controlling the passage of current in conversion devices which contain at least two series-connected, phase-shifted groups of at least two grid-controlled discharge paths, preferably vapor or gas discharge paths
DE752335C (en) Device for evenly distributing the wattage of alternating current generators connected in parallel
DE672500C (en) Control transformer, especially for AC vehicles, with a three-legged iron core
DE491333C (en) Circuit for transformers which are used to feed several converters, in particular several rectifiers
DE3331641C2 (en) Electrometallurgical furnace system
AT233675B (en) Arrangement for regulating DC voltages with controlled semiconductor valves in a limited control range
DE221490C (en)
DE504737C (en) Arrangement for zero point regulation of the voltage in 2 n-phase rectifier systems with the aid of only n-phase additional transformers
AT113254B (en) Circuit for transformers.
DE281894C (en)
AT124176B (en) Arrangement for changing the transformation ratio of multi-phase transformers, etc.
DE696502C (en) consumers with falling voltage characteristic
DE579580C (en) Arrangement for controlling alternating voltages by means of electrical discharge apparatus, in particular electron tubes
DE690103C (en) Device for regulating the voltage of direct current motors, in particular vehicle motors
AT119424B (en) Arrangement for zero point regulation of the voltage in rectifier systems.
DE974658C (en) Device for charging batteries from an alternating current network
AT152246B (en) Device for automatic current regulation in alternating current networks.