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DE824812C - Protection device for electrical systems against surge currents - Google Patents

Protection device for electrical systems against surge currents

Info

Publication number
DE824812C
DE824812C DEK3450A DEK0003450A DE824812C DE 824812 C DE824812 C DE 824812C DE K3450 A DEK3450 A DE K3450A DE K0003450 A DEK0003450 A DE K0003450A DE 824812 C DE824812 C DE 824812C
Authority
DE
Germany
Prior art keywords
spark gaps
protection device
systems
electrical systems
against surge
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
DEK3450A
Other languages
German (de)
Inventor
Friedrich Krauss
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEK3450A priority Critical patent/DE824812C/en
Application granted granted Critical
Publication of DE824812C publication Critical patent/DE824812C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
    • H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Description

Es ist bekannt, daß zur Einleitung eines Abschal2vorganges von überstromgefährdeten Leitungen Wandler Verwendung finden, die in die; abzuschaltenden Strompfade gelegt sind. Dabei werden durch die Wandler Stromschwankungen in Spannungsschwankungen umgesetzt, die, wenn ihr Wert ein bestimmtes Maß überschreitet, Relais zur Abschaltung der gefährdeten Leitungen zum Ansprechen bringen.It is known that to initiate a shutdown of overcurrent endangered Lines converters are used in the; current paths to be switched off laid are. The converter converts current fluctuations into voltage fluctuations implemented that, if their value exceeds a certain level, relays to shutdown make the endangered lines respond.

Gegenstand der Erfindung ist eine Schutzvorrichtung für elektrische Anlagen, im besonderen Niederspannungsanlagen, gegen Stoßüberströme und deren dynamische Wirkung. Dabei werden Wandler verwendet, die in die Strompfade der zu schützenden Anlagen eingebaut sind. Die Sekundärstromkreise der Wandler sind durch Funkenstrecken unterbrochen, die auf eine bestimmte Zündspannung eingestellt werden können. Erfolgt bei einem gewissen Überstromstoß, der mittels der Wandler mindestens diese bestimmte Zündspannung liefert, ein Überschlag, so dienen diese Funkenstrecken als Zündfunkenstrecken weiterer Funkenstrecken, durch deren Überschlag dann Strompfade parallel zu den zu schützenden Anlagen geschlossen werden. Daher fließt jetzt nur mehr ein Teil des dynamisch gefährlichen Stoßkurzschlußstromes durch die Anlagen selbst. Der sich nunmehr insgesamt einstellende Dauerkurzschlußstrom wird sodann durch die in jeder Anlage vorhandenen LTl)erstrotnrelais je nach der Einstellzeit der Schalter abgeschaltet, ehe ein thermischer Schaden in denAnla.gen entstehen kann.The invention relates to a protective device for electrical Systems, especially low-voltage systems, against surge currents and their dynamic currents Effect. In this case, converters are used that are in the current paths of the Systems are built in. The secondary circuits of the converters are through spark gaps interrupted, which can be set to a certain ignition voltage. He follows in the event of a certain overcurrent surge, which at least determined this by means of the converter Provides ignition voltage, a flashover, these spark gaps serve as ignition spark gaps further spark gaps, through their flashover then current paths parallel to the systems to be protected are closed. Therefore only a part flows now the dynamically dangerous surge short-circuit current through the systems themselves The permanent short-circuit current now set in total is then reduced by the in each System existing LTl) erstrotnrelais switched off depending on the setting time of the switch, before thermal damage can occur in the systems.

Als Anordnungsbeispiele mögen die Abb. i und i 2 dienen. Hier sind W die in die zu schützenden Strompfade R bzw. R, S, T eingebauten Wandler. I-1 sind .die einstellbaren Funkenstrecken, die die Sekundärstromkreise der Wandler W unterbrechen. 1I-II sind die Funkenstrecken, die die zur schützenden Anlage parallelen Strompfade bilden, sobald an den Funkenstrecken I-1 ein Durchschlag erfolgt.Figs. I and i 2 serve as examples of the arrangement. Here are W the converters built into the current paths R or R, S, T to be protected. I-1 are .the adjustable spark gaps that interrupt the secondary circuits of the converter W. 1I-II are the spark gaps that form the current paths parallel to the protective system form as soon as a breakdown occurs at the spark gaps I-1.

Claims (1)

PATENTANSPRUCH: Schutzvorrichtung für elektrische Anlagen gegen Stoßüberströme unter Verwendung von Wandlern, die in die Strompfade der zu schützenden Anlagen eingebaut sind, dadurch gekennzeichnet, daß die Sekundärstromkreise der Wandler durch Funkenstrecken unterbrochen sind, die derart bemessen sind, daß sie bei Überstromstößen als Zündfunkenstrecken weiterer Funkenstrecken dienen, durch deren Überschlag dann Strompfade parallel zu den zu schützenden Anlagen geschlossen werden. Angezogene Druckschriften: Deutsche Patentschrift Nr. 263290. PATENT CLAIM: Protection device for electrical systems against surge overcurrents using converters that are built into the current paths of the systems to be protected, characterized in that the secondary circuits of the converters are interrupted by spark gaps which are dimensioned in such a way that they act as ignition spark gaps for further spark gaps in the event of overcurrent surges serve, through the flashover of which then current paths are closed parallel to the systems to be protected. Referenced publications: German patent specification No. 263290.
DEK3450A 1950-05-31 1950-05-31 Protection device for electrical systems against surge currents Expired DE824812C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK3450A DE824812C (en) 1950-05-31 1950-05-31 Protection device for electrical systems against surge currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK3450A DE824812C (en) 1950-05-31 1950-05-31 Protection device for electrical systems against surge currents

Publications (1)

Publication Number Publication Date
DE824812C true DE824812C (en) 1951-12-13

Family

ID=7209898

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK3450A Expired DE824812C (en) 1950-05-31 1950-05-31 Protection device for electrical systems against surge currents

Country Status (1)

Country Link
DE (1) DE824812C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025496B (en) * 1954-09-30 1958-03-06 Siemens Ag Current and voltage limitation in electrostatic painting and electrostatic filter systems
DE1041141B (en) * 1957-04-13 1958-10-16 Hermann Stribel Fa Protection device for an electrical flashing system, especially for motor vehicles
DE1183171B (en) * 1962-09-18 1964-12-10 Vnii Shelesnodoroshnogo Transp Device for the protection of semiconductor rectifier systems
DE1240177B (en) * 1957-01-25 1967-05-11 Siemens Ag Protection device for power converter systems with semiconductor elements on the basis of a semiconductor body made of germanium or silicon containing valves
DE1254758B (en) * 1957-09-05 1967-11-23 Siemens Ag Protective device for dry rectifier
WO2012123541A1 (en) * 2011-03-16 2012-09-20 Phoenix Contact Gmbh & Co. Kg Electrical apparatus for the short-circuit protection of a three-phase load in a three-phase system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE263290C (en) *

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE263290C (en) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025496B (en) * 1954-09-30 1958-03-06 Siemens Ag Current and voltage limitation in electrostatic painting and electrostatic filter systems
DE1240177B (en) * 1957-01-25 1967-05-11 Siemens Ag Protection device for power converter systems with semiconductor elements on the basis of a semiconductor body made of germanium or silicon containing valves
DE1041141B (en) * 1957-04-13 1958-10-16 Hermann Stribel Fa Protection device for an electrical flashing system, especially for motor vehicles
DE1254758B (en) * 1957-09-05 1967-11-23 Siemens Ag Protective device for dry rectifier
DE1183171B (en) * 1962-09-18 1964-12-10 Vnii Shelesnodoroshnogo Transp Device for the protection of semiconductor rectifier systems
WO2012123541A1 (en) * 2011-03-16 2012-09-20 Phoenix Contact Gmbh & Co. Kg Electrical apparatus for the short-circuit protection of a three-phase load in a three-phase system
CN103348552A (en) * 2011-03-16 2013-10-09 菲尼克斯电气公司 Electrical apparatus for the short-circuit protection of a three-phase load in a three-phase system
US9300126B2 (en) 2011-03-16 2016-03-29 Phoenix Contact Gmbh & Co Kg Electrical apparatus for the short-circuit protection of a three-phase load in a three-phase system
CN103348552B (en) * 2011-03-16 2016-04-06 菲尼克斯电气公司 For the electric equipment of threephase load short-circuit protection in three-phase system

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