AT67107B - Step reversing switch for changing the excitation of starting machines in Leonard gears. - Google Patents
Step reversing switch for changing the excitation of starting machines in Leonard gears.Info
- Publication number
- AT67107B AT67107B AT67107DA AT67107B AT 67107 B AT67107 B AT 67107B AT 67107D A AT67107D A AT 67107DA AT 67107 B AT67107 B AT 67107B
- Authority
- AT
- Austria
- Prior art keywords
- excitation
- changing
- leonard
- reversing switch
- gears
- Prior art date
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
<Desc/Clms Page number 1>
Stufenwendeschalter für die Änderung der Erregung von Anlassmaschinen In Leonardgetrleben.
Stufenwendeschalter für die Felderregung von Dynamomaschinen in ihrer einfachen Grundform besitzen eine mittlere Nullstellung für den Steuerhebel, in welcher die Maschine weder in dem einen noch in dem anderen Sinne durch Stromeinleitung in Magnetisierungsspulen erregt wird. Spannungslosigkeit der Maschine wird hiedurch nicht erreicht, da im Feldgestell derselben von der letzt stattgehabten Erregung her noch der remanentc Magnetismus verblieben ist.
Zur Vernichtung dieser für manche Zwecke störenden Remanenz wird, wie bekannt. Gegenerregung angewandt.
Die durch nachstehende Beschreibung gekennzeichnete Erfindung betrifft nun eine neue Ausgestaltung des Stulenwendeschalters für die Felderregung von Dynamomaschinen zur Ver-
EMI1.1
ist dann bei Beendigung der Rückbewegung des Steuerhebels, also in dessen Nullstellung, bereits ein Erregerstrom von entgegengesetzter Richtung, als es eben vorher bei SteHung des Steuer- hebel auf der Seite A oder B der Fall war, eingeschaltet. Hindurch wird in den beiden Nullagol des Steuerhebels das Auftreten remanenter Spannung unmöglich gemacht, da die Remanenz
EMI1.2
Beim Aberregen des Stromerzeugers von der Seite A aus ist mit dem Steuerhebel die Nulllage b zu überfahren und derselbe bis a zu bewegen ; beim Aberregen von der Seite b ist die Null-
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<Desc / Clms Page number 1>
Step reversing switch for changing the excitation of starting machines in Leonardgetrleben.
Step reversing switches for the field excitation of dynamo machines in their simple basic form have a central zero position for the control lever, in which the machine is not excited in one sense or the other by the introduction of current into magnetizing coils. In this way, the machine does not become tension-free, since the remanent magnetism still remains in the field frame of the same from the last excitation that took place.
In order to destroy this remanence, which is disruptive for some purposes, it is known. Counter excitation applied.
The invention characterized by the following description relates to a new embodiment of the column reversing switch for the field excitation of dynamo machines for
EMI1.1
If the return movement of the control lever ends, i.e. in its zero position, an excitation current from the opposite direction than was the case before when the control lever was on side A or B is already switched on. As a result, the occurrence of remanent voltage in the two Nullagol of the control lever is made impossible because the remanence
EMI1.2
When the generator is over-energized from side A, the control lever must be used to cross zero position b and move it to a; if there is no rain from side b, the zero
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Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT67107T | 1913-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT67107B true AT67107B (en) | 1914-11-25 |
Family
ID=3589014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT67107D AT67107B (en) | 1913-10-13 | 1913-10-13 | Step reversing switch for changing the excitation of starting machines in Leonard gears. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT67107B (en) |
-
1913
- 1913-10-13 AT AT67107D patent/AT67107B/en active
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