DE619304C - Transformer adjustable by means of a load switch and tap selector - Google Patents
Transformer adjustable by means of a load switch and tap selectorInfo
- Publication number
- DE619304C DE619304C DEA68256D DEA0068256D DE619304C DE 619304 C DE619304 C DE 619304C DE A68256 D DEA68256 D DE A68256D DE A0068256 D DEA0068256 D DE A0068256D DE 619304 C DE619304 C DE 619304C
- Authority
- DE
- Germany
- Prior art keywords
- load switch
- bushing
- transformer
- tap selector
- berlin
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Description
Es sind Transformatoren für Regelung der. Spannung unfer Last bekannt, bei welchen der
sogenannte Lastschalter auf einer Durchführung außerhalb des Transformatorkastens
sitzt. Der Stufenwähler, der den Übergang von einer Stufe zur anderen vorbereitet und
nur stromlos geschaltet wird, befindet sich im Transformatorkasten. Stufenwähler und
Lastschalter arbeiten in ganz bestimmter 10* Weise zusammen und sind daher durch
Leitungen elektrisch und eine Welle mechanisch miteinander verbunden. Bei Regeltransformatoren in Sparschaltung war es bisher
üblich, die Netzanschlüsse, welche nicht unmittelbar an den Lastschalter angeschlossen
sind, in den Transformatorkasten mittels einer oder mehrerer besonderer Durchführungen
einzuführen, die für die volle Betriebsspannung bemessen waren.
Nach der Erfindung werden diese besonderen Durchführungen dadurch gespart, daß
durch die den Lastschalter tragende Durchführung diejenigen Netzanschlußleitungen
isoliert hindurchgeführt sind, die nicht unmittelbar an den Lastschalter angeschlossen
sind. Hierbei ist es zweckmäßig, diese Netzanschlußleitungen in das auf der Durchführung
sitzende Gehäuse des Lastschalters einzuführen, und zwar vorzugsweise in seine
Grundplatte, wobei man kleine Teildurchführungen benutzen kann, die nur für die zwischen
den Enden der Regelwicklung auftretende Spannung bemessen zu sein brauchen. Die durch die Hauptdurchführung gehenden
Leitungen sind gegeneinander ebenfalls nur für die zwischen den Enden der Regelwicklung
auftretende Spannung zu. isolieren.There are transformers for regulation of the. Voltage unfer load known, at which the so-called load switch sits on a bushing outside the transformer box. The step selector, which prepares the transition from one step to the other and is only switched off, is located in the transformer box. Step selector and load switch work together in a very specific 10 * way and are therefore electrically connected by cables and mechanically by a shaft. In the case of regulating transformers in economy circuit, it has hitherto been customary to introduce the mains connections, which are not directly connected to the load switch, into the transformer box by means of one or more special bushings that were dimensioned for the full operating voltage.
According to the invention, these special bushings are saved in that those mains connection lines which are not directly connected to the load switch are passed in an insulated manner through the bushing carrying the load switch. It is useful here to insert these mains connection lines into the housing of the circuit breaker sitting on the bushing, preferably into its base plate, whereby you can use small partial bushings that only need to be dimensioned for the voltage occurring between the ends of the control winding. The lines going through the main bushing are also only closed against each other for the voltage occurring between the ends of the control winding. isolate.
In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Abb. 1 zeigt eine Anordnung mit einpoliger und Abb. 2 mit zweipoliger Umschaltung eines Stufentransformators in Sparschaltung. 1 und 2 sind die Netzanschlüsse, 3 ist das Gehäuse des Lastschalters, welches zugleich auch die Uberschaltwiderstände enthält. 4 ist die Durchführung, welche den Lastschalter trägt und für die volle Betriebsspannung bemessen sein muß. 5 stellt die Regelwicklung, 6 einen einpoligen und 7 einen zweipoligen Umschalter dar. 8 ist die Erregerwicklung. In Abb. ι ist der Netzanschluß 1, welcher an den einpoligen Umschalter 6 und weiterhin an die Erregerwicklung 8 führt, mittels einer kleinen, für 'die Spannung· der Regelwicklung 5 bemessenen Durchführung 9 in das Gehäuse 3 des Lastschalters eingeführt, das im übrigen das Potential des Netzanschlusses 2 haben kann.Exemplary embodiments of the invention are shown in the drawing. Fig. 1 shows an arrangement with single-pole and Fig. 2 with two-pole switching of a step transformer in economy circuit. 1 and 2 are the mains connections, 3 is the housing of the load switch, which also contains the switching resistors. 4 is the Bushing that carries the load switch and is dimensioned for the full operating voltage have to be. 5 represents the control winding, 6 a single-pole and 7 a two-pole changeover switch 8 is the excitation winding. In Fig. Ι is the network connection 1, which leads to the single-pole changeover switch 6 and continues to the field winding 8, by means of a small bushing 9, dimensioned for the voltage of the control winding 5, into the Housing 3 of the load switch introduced, which in the rest of the potential of the mains connection 2 can have.
Bei der zweipoligen Umschaltung gemäß Abb. 2 sind die beiden Netzanschlüsse 1 und 2 isoliert in das Gehäuse des Lastschalters mittels je einer für die Spannung der Regelwicklung· bemessenen Durchführung 9 eingeführt.With the two-pole changeover according to Fig. 2, the two mains connections are 1 and 2 insulated in the housing of the circuit breaker by means of one for the voltage the normal winding · measured implementation 9 introduced.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA68256D DE619304C (en) | Transformer adjustable by means of a load switch and tap selector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA68256D DE619304C (en) | Transformer adjustable by means of a load switch and tap selector |
Publications (1)
Publication Number | Publication Date |
---|---|
DE619304C true DE619304C (en) | 1935-09-27 |
Family
ID=6944641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA68256D Expired DE619304C (en) | Transformer adjustable by means of a load switch and tap selector |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE619304C (en) |
-
0
- DE DEA68256D patent/DE619304C/en not_active Expired
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