DE400593C - Method for switching over and rapidly de-energizing the excitation winding of electrical machines - Google Patents

Method for switching over and rapidly de-energizing the excitation winding of electrical machines

Info

Publication number
DE400593C
DE400593C DES58682D DES0058682D DE400593C DE 400593 C DE400593 C DE 400593C DE S58682 D DES58682 D DE S58682D DE S0058682 D DES0058682 D DE S0058682D DE 400593 C DE400593 C DE 400593C
Authority
DE
Germany
Prior art keywords
electrical machines
excitation winding
energizing
rapidly
switching over
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
DES58682D
Other languages
German (de)
Inventor
Alois Fahrmbacher
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
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 DES58682D priority Critical patent/DE400593C/en
Application granted granted Critical
Publication of DE400593C publication Critical patent/DE400593C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/10Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/12Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal
    • H02P9/123Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal for demagnetising; for reducing effects of remanence

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Description

Verfahren zum Umschalten und schnellen Aberregen der Erregerwicklung elektrischer Maschinen. Die Erfindung betrifft ein Verfahren zum Umschalten der Erregerwicklung elektrischer Maschinen. Sie besteht darin, daß die Erregerwicklung mittels eines doppelpoligen Umschalters, der zwischen ihr und dem Anker liegt, über Widerstand ohne Unterbrechung umgeschaltet wird. Dabei wird zwischen die Mittelkontakte des doppelpoligen Umschalters, derzwischen Erregerwicklung und Anker liegt, und eine Gruppe der Umschaltkbntakte Widerstand gelegt. Dieses Verfahren soll insbesondere zum Umschalten der Erregerwicklung von elektrischen Maschinen verwendet werden, bei denen es daraßf ankommt, die Erregung möglichst schnell zu unterdrücken und insbesondere den remanenten Magnetismus schnell zu beseitigen, wie es im Patent. 209¢2o, IC. 21d, näher beschrieben ist. Method for switching over and rapidly de-energizing the excitation winding of electrical machines. The invention relates to a method for switching over the field winding of electrical machines. It consists in the fact that the excitation winding is switched over without interruption by means of a double-pole changeover switch, which is located between it and the armature. A resistor is placed between the center contacts of the double-pole changeover switch, which is located between the excitation winding and the armature, and a group of the changeover contacts. This method is intended to be used in particular for switching the excitation winding of electrical machines where it is important to suppress the excitation as quickly as possible and, in particular, to quickly eliminate the remanent magnetism, as described in the patent. 209 ¢ 2o, IC. 21d, is described in more detail.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Abb. i zeigt eine Anlage, die aus einem Drehstromgenerator besteht, von dem nur der gleichstromgespeiste Läufer r schematisch dargestellt ist, und aus einem Nebenschlußgenerator mit dem Anker a und der Erregerwicklung e. Zwischen dem Anker a und der Wicklung e liegt der Umschalter u, dessen Mittelkontakte ml und m2 mit der Erregerwicklung e verbunden sind. Zwischen diesen Kontakten und den mit dem Anker a verbundenen Umschaltkontakten c,, und c2 liegen nach der Erfindung die Widerstände .w.1, und w2. Außerdem ist noch ein Regelwiderstand g im Stromkreis der Erregerwicklung vorgesehen. Abb.2, 3 und 4 veranschaulichen die Wirkungsweise des Umschalters. In Abb.2 verbinden die Schaltmesser die Kontakte ml und m2 mit den Kontakten cl und c8. Der Strom fließt zum allergrößten Teil durch die Schaltmesser. In Abb.3 stehen die Schaltmesser außer Berührung mit den 'Kontakten des Umschalters. Der Strom fließt in derselben Richtung wie in Abb. i über die Widerstände. In Abb. 4 verbinden die Schaltmesser die Mittelkontakte m1 und m, mit der Kontaktgruppe k1 und kQ, und der Strom fließt der Erregerwicklung in umgekehrter Richtung zu. Diese kann also sehr schnell umgeschaltet werden, und die Spannung des Generators kann sehr rasch und restlos vernichtet werden. Dementsprechend wird auch die Erregung der elektrischen Maschine, . die von dem Nebenschlußgenerator gespeist wird, schnell beseitigt.An embodiment of the invention is shown in the drawing. Fig. I shows a system that consists of a three-phase generator, of which only the DC-fed rotor r is shown schematically, and a shunt generator with the armature a and the excitation winding e. Between the armature a and the winding e there is the changeover switch u, whose center contacts ml and m2 are connected to the excitation winding e. According to the invention, the resistors .w.1 and w2 are located between these contacts and the changeover contacts c ,, and c2 connected to the armature a. In addition, a variable resistor g is provided in the circuit of the field winding. Fig. 2, 3 and 4 illustrate how the changeover switch works. In Fig.2, the switch blades connect contacts ml and m2 to contacts cl and c8. Most of the current flows through the switch blades. In Fig.3 the switch blades are out of contact with the contacts of the switch. The current flows in the same direction as in Fig. I through the resistors. In Fig. 4, the switch blades connect the center contacts m1 and m to the contact group k1 and kQ, and the current flows to the field winding in the opposite direction. This can be switched over very quickly, and the voltage of the generator can be destroyed very quickly and completely. The excitation of the electrical machine,. fed by the shunt generator is quickly eliminated.

Die rasche Beseitigung der Erregung ist von großem Wert für Generatoren, die von Wasserkraft angetrieben werden. Diese werden dadurch bei Versagen tles Reglers bei unzulässiger Drehzahlerhöhung gegen Spannungs- und Stromerhöhungen geschützt.The rapid elimination of excitation is of great value to generators, that are powered by hydropower. This will be the case if the controller fails Protected against voltage and current increases in the event of an impermissible increase in speed.

Die Erfindung kann aber auch noch in anderen Fällen, so z. B. beim schnellen Aberregen von Einankerumformern, mit Vorteil verwendet werden.The invention can also be used in other cases, such. B. at rapid aberration of single armature converters, can be used with advantage.

Der doppelpolige Umschalter kann irgendeine Form besitzen, so kann er z. B. auch als Wälzenschalter ausgebildet sein.The double pole changeover switch can be of any shape, so can he z. B. also be designed as a roller switch.

Claims (2)

PATENT-ANSPRU cHE: i. Verfahren zum Umschalten und schnellen Aberregen der Erregerwicklung elektrischer Maschinen, dadurch gekennzeichnet, daß die .Erregerwicklung der Hauptmaschine oder ihrer Erregermaschine mittels eines doppelpoligen Umschalters, der zwischen ihr und dem Anker liegt, über Widerstand ohne Unterbrechung umgeschaltet wird. PATENT CLAIMS: i. Method of switching and rapid aberration the field winding of electrical machines, characterized in that the field winding the main machine or its exciter by means of a double-pole changeover switch, which lies between it and the anchor, switched over via resistance without interruption will. 2. Ausführungsform nach Anspruch i, dadurch gekennzeichnet, daß zwischen den Mittelkontakten eines doppelpoligen Umschalters und einer Gruppe der Umschaltkontakte Widerstand liegt. 2. Embodiment according to claim i, characterized in that there is resistance between the center contacts of a double-pole changeover switch and a group of changeover contacts.
DES58682D 1922-01-24 1922-01-24 Method for switching over and rapidly de-energizing the excitation winding of electrical machines Expired DE400593C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES58682D DE400593C (en) 1922-01-24 1922-01-24 Method for switching over and rapidly de-energizing the excitation winding of electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES58682D DE400593C (en) 1922-01-24 1922-01-24 Method for switching over and rapidly de-energizing the excitation winding of electrical machines

Publications (1)

Publication Number Publication Date
DE400593C true DE400593C (en) 1924-08-21

Family

ID=7492720

Family Applications (1)

Application Number Title Priority Date Filing Date
DES58682D Expired DE400593C (en) 1922-01-24 1922-01-24 Method for switching over and rapidly de-energizing the excitation winding of electrical machines

Country Status (1)

Country Link
DE (1) DE400593C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946827C (en) * 1940-11-10 1956-08-09 Siemens Ag Arrangement and method for fast de-energization of electrical machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946827C (en) * 1940-11-10 1956-08-09 Siemens Ag Arrangement and method for fast de-energization of electrical machines

Similar Documents

Publication Publication Date Title
DE4004785A1 (en) SERIES MOTOR WITH A BRAKE DEVICE
DE400593C (en) Method for switching over and rapidly de-energizing the excitation winding of electrical machines
AT103822B (en) Device for switching over the field winding of electrical machines.
DE2155936C3 (en) Single-phase shaded pole asynchronous motor
DE550061C (en) Device for the rapid de-energization of electrical power generators
DE500925C (en) Starting circuit of the secondary winding of asynchronous machines
DE28485C (en) Commutator arrangement in dynamo-electric machines to reduce the resistance of the machine
DE449671C (en) Switching device for operating short-circuit armature motors
DE451594C (en) Method for electrodynamic braking in electric traction motors
DE555782C (en) Arrangement of the damper winding on electric machine runners with pronounced poles and radially arranged winding slots that can be produced in groups
DE834872C (en) Arrangement to improve the commutation of single-phase commutator motors
DE504013C (en) Device to improve the commutation of DC machines
CH403046A (en) De-excitation device for electrical machines
DE506293C (en) Device to prevent runaway and polarity reversal in compounded electrical machines
DE403732C (en) Regulation of the braking effect of cooperating electric motors
DE333972C (en)
DE690960C (en) Method for connecting a three-phase generator to one or more generators in one, in particular for electric ship propulsion systems
DE436142C (en) Rotor winding for asynchronous starting asynchronous motors operated as DC-excited synchronous motors
DE475418C (en) Electric machine with a multiple parallel winding connected to two commutators
DE701148C (en) DC power generation system, in particular train lighting system
DE224681C (en)
DE414536C (en) Safety circuit for electric generator
DE919179C (en) Three-phase motor
AT96458B (en) Safety circuit for electric power generators.
DE565419C (en) Device for improving the current reversal of direct current multiple brush machines