DE575692C - Device for stepless voltage regulation of transformers - Google Patents

Device for stepless voltage regulation of transformers

Info

Publication number
DE575692C
DE575692C DEW85958D DEW0085958D DE575692C DE 575692 C DE575692 C DE 575692C DE W85958 D DEW85958 D DE W85958D DE W0085958 D DEW0085958 D DE W0085958D DE 575692 C DE575692 C DE 575692C
Authority
DE
Germany
Prior art keywords
voltage regulation
transformers
voltage
columns
regulator
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
DEW85958D
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.)
Westinghouse Cooper Hewitt GmbH
Original Assignee
Westinghouse Cooper Hewitt GmbH
Publication date
Priority to DEW85958D priority Critical patent/DE575692C/en
Application granted granted Critical
Publication of DE575692C publication Critical patent/DE575692C/en
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10Regulating voltage or current
    • G05F1/625Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
    • G05F1/63Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc using variable impedances in series with the load as final control devices
    • G05F1/644Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc using variable impedances in series with the load as final control devices being pressure-sensitive resistors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Rectifiers (AREA)

Description

Einrichtung zur stufenlosen Spannungsregelung von Transformatoren Bei Verwendung von Gleichrichtern zur Speisung irgendwelcher Stromverbraucher ohne Parallelschaltung einer Batterie ist der Spannungsabfall, welcher zwischen Leerlauf und Vollast auftritt, beispielsweise in automatischen Telephonanlagen, außerordentlich störend. Daher ist wohl bisher davon abgesehen worden, Gleichrichter, - insbesondere für Telephon- und Signalanlagen überhaupt ohne Batterie zu verwenden, -da ja die dort üblichen empfindlichen Relais nur ganz geringe Spannungsschwankungen zulassen. Es wäre wohl möglich, durch die bisher bekannten Regeleinrichtungen, wie Stufenschalter mit motorischem Antrieb usw., einen Spannungsausgleich zu schaffen, doch würde einerseits die Trägheit eines solchen Reglers zu groß sein, anderseits die Stufen zu grob, um eine einwandfreie Lösung der vorstehenden Frage erzielen zu können. Selbst bei Verwendung des bekannten Kohlescheibenreglers würde man die gestellte Aufgabe nicht lösen können, da ja bei Leerlauf der Widerstand desselben nahezu unendlich groß sein müßte, was praktisch nicht erzielt werden kann.Device for stepless voltage regulation of transformers When using rectifiers to feed any power consumers without Parallel connection of a battery is the voltage drop that occurs between idling and full load occurs, for example in automatic telephone systems, extraordinarily disturbing. Therefore it has probably been refrained from using rectifiers - in particular to use for telephone and signal systems without a battery at all, because that The sensitive relays customary there allow only very small voltage fluctuations. It would probably be possible through the previously known control devices, such as tap changers with motor drive etc. to create a tension compensation, but would on the one hand the inertia of such a regulator may be too great, on the other hand the steps too coarse, in order to be able to achieve a perfect solution to the above question. Even at Using the well-known carbon disk regulator would not do the job can solve, since the resistance of the same is almost infinite when idling would have to be, which cannot be achieved in practice.

Zu einer Lösung führt das Prinzip des Anzapftransforinators und Kohlereglers in Zusammenarbeit, welches, nachfolgend beschrieben, neu ist.The principle of the tapping transformer and coal regulator leads to a solution in cooperation, which, as described below, is new.

-_Die Sekundärspule des in der Abbildung dargestellten Gleichrichtertransformators T hat die Anzapfungen o, i und 2, wobei die Spannungen so fest gelegt sind, daß o bis 2 die erforderliche Höchstspannung und o bis t die erforderliche Kleinstspannung darstellt. Die Magnetspulen des schematisch dargestellten Reglers, die vom Gleichstrom durchflossen und von der Gleichspannung gegenkompoundiert werden, drücken mit Hilfe der Zunged gegen die Kraft der Feder/ die Kohlensäule a entsprechend der Belastung zusammen und entlasten damit gleichzeitig die Säule b. Die Spannung zwischen o und rückt damit entsprechend zunehmender Belastung kontinuierlich von i nach 2. Da nur ganz geringe Wege zurückzulegen sind, so arbeitet das System so gut wie trägheitslos und gibt bei entsprechender Bemessung der Stromspannungsspulen c auf der Gleichstromseite des beispielsweise in Graetzschaltung arbeitenden Gleichrichters G1 auch bei Oberspannungsschwankungen eine praktisch konstante Spannung, da durch die Stromspule in c proportional der Belastung die Wechselspannung vor dem Gleichrichter erhöht und durch die Spannungsspule bei zu hoher Oberspannung entsprechend geschwächt wird. Es können an Stelle des Gleichrichters auch andere Stromverbraucher an den Regler angeschlossen werden.-_The secondary coil of the rectifier transformer shown in the figure T has the taps o, i and 2, the voltages are set so firmly that o to 2 the maximum voltage required and o to t the minimum voltage required represents. The solenoid coils of the controller shown schematically, which are powered by direct current are flowed through and are counter-compounded by the DC voltage, press with the help the tongue against the force of the spring / the column of coal a according to the load together and at the same time relieve the pillar b. The tension between o and moves continuously from i to 2 according to the increasing load The system works almost inertially and gives, if the voltage coils c are dimensioned accordingly, on the direct current side of the rectifier G1, which works, for example, in a Graetz circuit, even in the event of high voltage fluctuations a practically constant voltage, because the current coil in c is proportional to the Load increases the AC voltage in front of the rectifier and through the voltage coil is weakened accordingly if the maximum voltage is too high. Instead of the Rectifier, other power consumers can also be connected to the controller.

Die _ Regelung innerhalb zweier fester Spannungspunkte am Transformator bringt den Vorteil, daß bei den eng begrenzten Spannungsverhältnissen nicht so viel teure Kohlescheiben als bei einem normalen Reg-[er notwendig sind. Auch sind in den Endstellungen die Verluste im Regler sehr klein, da nicht die volle Regelleistung durch den Regler zu gehen braucht. «'eiterhin ' sind durch die engbegrenzten Spamiungspunkte und die kleinere Kohlescheibenzahl die.Spannungsabfälle im Regler an' und für sich gering, so daß also auch hierdurch an Regelleistung. gespart werden kann. ' Die Stromspule c soll gleichzeitig so dimensioniert sein, daß diese als Glättungsdrosselspule dient und so eine besondere Glättungsdrossel - bei Verwendung eines Gleichrichters erspart werden kann.The _ regulation within two fixed voltage points on the transformer has the advantage that not so much with the tightly limited tension conditions expensive carbon disks than are necessary with a normal regulator. Also are in the end positions the losses in the controller are very small, since not the full control power needs to go through the regulator. “'On the other hand' are due to the narrowly delimited spam points and the smaller number of carbon disks the voltage drops in the regulator in and of itself low, so that also as a result of control power. can be saved. ' The Current coil c should at the same time be dimensioned so that it acts as a smoothing choke coil and so a special smoothing choke - when using a rectifier can be saved.

Claims (2)

PATEN TAN SPRÜcI-iR: i. Einrichtung zur stufenlosen Spannungsregelung von Transformatoren mittels zweier Kohlesäulen, von denen die eine in =lbhängigkeit von der Belastung zusammengedrückt, die andere entsprechend entlastet wird, dadurch gekennzeichnet. daß beide Säulen in Reihe zwischen zwei Transformatoranzapfungen liegen und der Mittelpunkt der Säulen an den Verbraucher angeschlossen ist. PATEN TAN SPRÜcI-iR: i. Device for stepless voltage regulation of transformers by means of two carbon columns, one of which is compressed depending on the load, the other is relieved accordingly. that both columns are in series between two transformer taps and the center of the columns is connected to the consumer. 2. Einrichtung zur Spannungsregelung nach Anspruch i bei, Verwendung eines Gleichrichters zwischen Transformator und Verbraucher, dadurch gekennzeichnet, daß die Stromspule des Reglers so bemessen ist, daß eine besondere Glättungsdrosselspule erspart werden kann.2. Establishment for voltage regulation according to claim i, using a rectifier between Transformer and consumer, characterized in that the current coil of the regulator is dimensioned so that a special smoothing choke coil can be saved.
DEW85958D Device for stepless voltage regulation of transformers Expired DE575692C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW85958D DE575692C (en) Device for stepless voltage regulation of transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW85958D DE575692C (en) Device for stepless voltage regulation of transformers

Publications (1)

Publication Number Publication Date
DE575692C true DE575692C (en) 1933-05-02

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ID=7612263

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW85958D Expired DE575692C (en) Device for stepless voltage regulation of transformers

Country Status (1)

Country Link
DE (1) DE575692C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE956138C (en) * 1952-12-04 1957-01-17 Standard Elek K Ag Power supply device for alternating current consumers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE956138C (en) * 1952-12-04 1957-01-17 Standard Elek K Ag Power supply device for alternating current consumers

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