DE607251C - Device for asynchronous starting of single armature converters - Google Patents

Device for asynchronous starting of single armature converters

Info

Publication number
DE607251C
DE607251C DES100213D DES0100213D DE607251C DE 607251 C DE607251 C DE 607251C DE S100213 D DES100213 D DE S100213D DE S0100213 D DES0100213 D DE S0100213D DE 607251 C DE607251 C DE 607251C
Authority
DE
Germany
Prior art keywords
transformer
switched
asynchronous starting
single armature
star
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
DES100213D
Other languages
German (de)
Inventor
Dipl-Ing Ernst Kloss
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
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens 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, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES100213D priority Critical patent/DE607251C/en
Application granted granted Critical
Publication of DE607251C publication Critical patent/DE607251C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
    • H02P1/32—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star/delta switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor And Converter Starters (AREA)

Description

Einrichtung zum asynchronen Anlassen von Einankerumformem Bei Einankerumformeranlagen ist in vielen Fällen im Betriebe eine Spannungsregelung in größerem oder kleinerem Umfang erforderlich. Diese Spannungsregelung hat man beispielsweise durch Feldregelung erzielt, wobei eine hohe lnduktanz des betriebsmäßig vorhandenen, dem Einankerumformer vorgeschalteten Transformators wesentlich unterstützend wirkt. In anderen Fällen schaltet man zur Vergrößerung der Induktanz eine Drosselspule ein.Device for asynchronous starting of single-armature converters in single-armature converting systems is in many cases in the company a voltage regulation in larger or smaller Scope required. This voltage regulation is done, for example, by field regulation achieved, with a high inductance of the operationally available, the single armature converter upstream transformer has a significantly supporting effect. In other cases a choke coil is switched on to increase the inductance.

In derartigen Anlagen ist es vielfach üblich, den Umformer von der Wechselstromseite asynchron anzulassen. Da aber ein unmittelbarer Anschluß an die volle Wechselspannung wegen der Größe des Stromstoßes meist nicht zulässig erscheint, hat man verschiedene Anlaßverfahren vorgeschlagen, die dem Umformer während des Anlaufs eine geringere Spannung zur Verfügung stellen und von denen als die billigste das Anlassen mittels Stern-Dreieckumschaltung des betriebsmäßig vorhandenen Transformators bekannt ist. In sehr vielen Fällen treten jedoch bei diesem Verfahren noch unzulässig große Stromstöße auf.In such systems, it is common to use the converter from the Start the AC side asynchronously. But there is a direct connection to the full alternating voltage usually does not appear permissible due to the magnitude of the current surge, various tempering methods have been proposed that the converter during the Provide a lower voltage for starting and of which as the cheapest starting by means of star-delta switching of the operational transformer is known. In very many cases, however, this procedure is still inadmissible large power surges.

Dieser Nachteil kann nach der Erfindung dadurch vermieden werden, daß im ersten Anlaufstadium der in Stern geschalteten Oberspannungswicklung des Transformators eine mit entsprechender Phasenzahl ausgebildete Drosselspule vorgeschaltet wird, die bei der Umschaltung des Transformators auf Dreieck ausgeschaltet wird. Eine besonders einfache Anordnung ergibt sich hierbei, wenn die der Phasenzahl entsprechend ausgebildete Drosselspule zwischen die Oberspannungswicklung und den Sternpunkt des Transformators geschaltet wird. In Verbindung hiermit kann man auch noch in an sich bekannter Weise einen Transformator mit erhöhter Streuung verwenden, wodurch der Anlaßvorgang günstiger gestaltet wird und außerdem, wie eingangs erwähnt, auch die Möglichkeit für eine Spannungsregelung des Umformers im Betrieb gegeben ist.According to the invention, this disadvantage can be avoided by that in the first start-up stage of the star-connected high-voltage winding of the Upstream of the transformer is a choke coil designed with a corresponding number of phases which is switched off when the transformer is switched to delta. A particularly simple arrangement is obtained if it corresponds to the number of phases formed choke coil between the high-voltage winding and the star point of the transformer is switched. In connection with this you can also use In a manner known per se, use a transformer with increased scattering, whereby the starting process is made cheaper and also, as mentioned at the beginning there is the possibility of regulating the voltage of the converter during operation.

Claims (1)

PATENTANSPRÜCHE: i. Einrichtung zum asynchronen Anlassen von Einankerumformern mit Stern-Dreieckumschaltung des betriebsmäßig vorhandenen Transformators, gekern zeichnet durch eine mit entsprechender Phasenzahl ausgebildete Drosselspule, über die im ersten Anlaufstadium die Hochspannungswicklung des Transformators in Stern geschaltet wird und welche bei der Umschaltung des Transformators auf Dreieck ausgeschaltet wird. a. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß der Transformator mit vergrößerter Streuung ausgeführt ist. PATENT CLAIMS: i. Device for asynchronous starting of single-armature converters with star-delta switching of the operationally existing transformer, the core is characterized by a choke coil designed with a corresponding number of phases, via which the high-voltage winding of the transformer is switched to star in the first start-up stage and which is switched off when the transformer is switched to delta. a. Device according to Claim i, characterized in that the transformer is designed with increased scatter.
DES100213D 1931-08-04 1931-08-04 Device for asynchronous starting of single armature converters Expired DE607251C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES100213D DE607251C (en) 1931-08-04 1931-08-04 Device for asynchronous starting of single armature converters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES100213D DE607251C (en) 1931-08-04 1931-08-04 Device for asynchronous starting of single armature converters

Publications (1)

Publication Number Publication Date
DE607251C true DE607251C (en) 1934-12-20

Family

ID=7522909

Family Applications (1)

Application Number Title Priority Date Filing Date
DES100213D Expired DE607251C (en) 1931-08-04 1931-08-04 Device for asynchronous starting of single armature converters

Country Status (1)

Country Link
DE (1) DE607251C (en)

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