DE466274C - Arrangement for rapid de-energization of generators - Google Patents

Arrangement for rapid de-energization of generators

Info

Publication number
DE466274C
DE466274C DES80467D DES0080467D DE466274C DE 466274 C DE466274 C DE 466274C DE S80467 D DES80467 D DE S80467D DE S0080467 D DES0080467 D DE S0080467D DE 466274 C DE466274 C DE 466274C
Authority
DE
Germany
Prior art keywords
generators
energization
rapid
arrangement
winding
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
DES80467D
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Publication date
Priority to DES80467D priority Critical patent/DE466274C/en
Application granted granted Critical
Publication of DE466274C publication Critical patent/DE466274C/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
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/10—Control 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
    • H02P9/12—Control 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
    • H02P9/123—Control 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)
  • Control Of Eletrric Generators (AREA)
  • Synchronous Machinery (AREA)

Description

Anordnung zum schnellen Entregen von Generatoren In der Patentschrift 42I 396 ist ein Verfahren zum schnellen Entregen von Generatoren angegeben, die eine von einer Erregermaschine gespeiste Feldwicklung aufweisen. Das Verfahren besteht darin, daß beim Öffnen des zur Entregung dienenden Schalters die Feldenergie des Generators in die Erregermaschine zurückflutet und diese dabei umpolt. Zur Anwendung dieses Verfahrens wird zwischen den Anker der Erregermaschine und die Stelle, wo die Erregerwicklung der Hauptmaschine von der Erregung der Erregermaschine abzweigt, ein kurzgeschlossener Widerstand, der sogenannte Schnellentregungswiderstand, geschaltet, der beim Entregen durch Aufheben des Kurzschlusses zur Wirkung gebracht wird.Arrangement for the rapid de-energization of generators In the patent 42I 396 a method for the rapid de-energization of generators is given which have a field winding fed by an exciter. The procedure persists is that when you open the switch serving for de-excitation, the field energy of the Generator floods back into the exciter and reverses the polarity. To use this procedure is between the armature of the exciter and the point where the excitation winding of the main machine branches off from the excitation of the excitation machine, a short-circuited resistor, the so-called fast de-energizing resistor, switched, which is brought into effect when the short circuit is de-energized.

Dieses Verfahren läßt sich nun nicht ohne weiteres anwenden, wenn eine Kompounderregermaschine vorhanden ist, da diese den Entregungsvorgang stört. Erfindungsgemäß wird nun die Kompoundwicklung im normalen Betrieb parallel zu dem Schnellentregungswiderstand geschaltet und mit einer Abschaltvorrichtung versehen, die für den Entregungsvorgang betätigt wird. Eine Ausführung zeigt die Abbildung. Hier bedeutet g den Generator mit der Erregerwicklung c, der das Netz n speist. Der Generator wird von einer Kompounderregermaschine e erregt, die eine Nebenschlußwicklung b hat, die in üblicher Weise durch einen Regelwiderstand d entsprechend der Belastung eingestellt werden kann. Nach der Erfindung ist nun die Kompoundwicklung k nebst dem Schalter s parallel zu dem Schnellentregungswiderstand r geschaltet, der in bekannter Weise zwischen dem Anker a und der Abzweigstelle A des Nebenschlußerregerkreises der Maschine e und des Haupterregerkreises der Maschine g liegt. Im regelmäßigen Betrieb ist der Widerstand r durch den Schalter s kurzgeschlossen, weil praktisch die Ohmzahl des Widerstandes r unverhältnismäßig größer (praktisch etwa 4o mal so groß) ist als diejenige der Kompoundwicklung. Wird nun durch irgendeine Generatorschutzeinrichtung das Kommando zur Entregung gegeben, so ist lediglich der einpolige Schalter s zu unterbrechen. Der Feldstromkreis des Drehstromgenerators g wird dabei nicht unterbrochen, so daß die Feldwicklung c in keiner Weise gefährdet ist.This method cannot be used without further ado if a compound exciter is available, as this interferes with the de-excitation process. According to the invention, the compound winding is now parallel to the normal operation Fast de-energizing resistor switched and provided with a cut-off device, which is actuated for the de-excitation process. The illustration shows an implementation. Here g means the generator with the excitation winding c, which feeds the network n. The generator is excited by a compound exciter e, which has a shunt winding b has, which in the usual way by a variable resistor d according to the load can be adjusted. According to the invention, the compound winding k is now in addition connected to the switch s in parallel with the fast de-energizing resistor r, which is shown in known way between the armature a and the branch point A of the shunt exciter circuit of machine e and the main excitation circuit of machine g. Im regular In operation, the resistor r is short-circuited by the switch s because it is practical the ohm number of the resistor r is disproportionately larger (practically about 40 times as much large) than that of the compound winding. Is now through some generator protection device the command to de-energize is given, only the single-pole switch s is closed interrupt. The field circuit of the three-phase generator g is not interrupted so that the field winding c is in no way endangered.

In der ebenfalls aus dem Hauptpatent bekannten Art und Weise kann ferner zur Unterstützung des Abklingens der Ströme der Nebenschlußregler d nach Bedarf verstellt werden, oder es kann gleichzeitig mit dem Widerstand r der Mägnetregler kurzgeschlossen und ein besonderer Widerstand in die Nebenschlußleitung der Erregermaschine eingeschaltet werden.In the manner also known from the main patent also to support the decay of the currents of the shunt regulator d after If necessary, it can be adjusted, or it can be adjusted simultaneously with the resistance r of the magnetic regulator shorted and a special resistor in the shunt of the exciter be switched on.

Claims (1)

PATENTANSPRUCH: Anordnung zum schnellen Entregen von Generatoren nach Patent 42I 396, deren Feldwicklung von einer Kompounderregermaschine gespeist wird, dadurch gekennzeichnet, daß die Kompoundwicklung (k) über den zur Entregung dienenden Unterbrecher (s) parallel zum Schnellentregungswiderstand (r) geschaltet ist. Claim: Arrangement for fast de-energizing generators according to patent 42I 396, the field winding of which is fed by a compound exciter, characterized in that the compound winding (k) is connected in parallel to the fast de-energizing resistor (r) via the breaker (s) used for de-energizing.
DES80467D Arrangement for rapid de-energization of generators Expired DE466274C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES80467D DE466274C (en) Arrangement for rapid de-energization of generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES80467D DE466274C (en) Arrangement for rapid de-energization of generators

Publications (1)

Publication Number Publication Date
DE466274C true DE466274C (en) 1928-10-03

Family

ID=7508889

Family Applications (1)

Application Number Title Priority Date Filing Date
DES80467D Expired DE466274C (en) Arrangement for rapid de-energization of generators

Country Status (1)

Country Link
DE (1) DE466274C (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

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