DE358139C - Electrical distribution system for single or multi-phase electricity - Google Patents

Electrical distribution system for single or multi-phase electricity

Info

Publication number
DE358139C
DE358139C DES54674D DES0054674D DE358139C DE 358139 C DE358139 C DE 358139C DE S54674 D DES54674 D DE S54674D DE S0054674 D DES0054674 D DE S0054674D DE 358139 C DE358139 C DE 358139C
Authority
DE
Germany
Prior art keywords
distribution system
transformers
electrical distribution
phase electricity
phase
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
DES54674D
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
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 DES54674D priority Critical patent/DE358139C/en
Application granted granted Critical
Publication of DE358139C publication Critical patent/DE358139C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/08Limitation or suppression of earth fault currents, e.g. Petersen coil

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Description

Elektrische Verteilungsanlage für Ein- oder 1Kehrphasenstrom. Die Erfindung hezieht sich auf Hochspannungswechselstromanlagen, bei denen im Fall des Auftretens eines Erdschlusses der Erdschlußlichtbogen von vornherein unterdrückt wird. Voraussetzung ist, daß in den Verteilungsanlagen eine Anzahl von Betriebstransformatoren angeordnet ist, deren primäre Wicklungen im Stern geschaltet sind.Electrical distribution system for single-phase or 1-phase power. the Invention refers to high-voltage alternating current systems, where in the case of the Occurrence of a ground fault suppresses the ground fault arc from the start will. The prerequisite is that there are a number of operating transformers in the distribution systems is arranged, whose primary windings are connected in the star.

Wenn in solchen Anlagen eine Phase Erdschluß bekommt, so werden die an diese Phasen angeschlossenen Transformatorspulen kurzgeschlossen. Die von den beiden anderen Transformatorspulen erzeugten Kraftlinien können sich nun nicht mehr über den dritten Schenkel des Transformators schließen, weil durch die Kurzschließung der Wicklung gewissermaßen eine Sperrung des Kraftlinienweges über diesen Schenkel herbeigeführt wird. Die Kraftlinien müssen sich also auf anderem Wege, z.B. durch die Luft, schließen, ein Vorgang; der allgemein reit Jochstreuung bezeichnet wird.If a phase gets earth fault in such systems, the transformer coils connected to these phases short-circuited. The ones from the The lines of force generated by the two other transformer coils can no longer be combined close over the third leg of the transformer because of the short circuit the winding, so to speak, a blocking of the path of the lines of force over this leg is brought about. The lines of force have to go through in another way, e.g. through the air, close, a process; which is commonly referred to as yoke scattering.

Die Erfindung macht von dieser Tatsache Gebrauch, um das Auftreten von Erdschlußlichtbogen zu unterdrücken. Hierzu werden je nach der Ausdehnung des Verteilungsnetzes so vielTransformatoren mit Nullpunktsendung versehen, daß im Fall eines Erdschlusses einer Phase, durch den ja sämtliche an die Phase angeschlossenen Primärspulen zugleich kurzgeschlossen werden, eine solche Jochstreuung in den Transformatoren herbeigeführt wird, daß die Summe aller Ströme, die .durch die verbleibenden beiden Primärspulen aller Transformatoren fließen, gleich der Erdkomponente des Kapazitätsstromes der ganzen Verteilungsanlage ist. Ein Erdschlußlichtbogen kann dann überhaupt nicht entstehen.The invention makes use of this fact to prevent the occurrence to suppress ground fault arcing. For this purpose, depending on the extent of the Distribution network provided so many transformers with zero point transmission that in the case an earth fault of a phase, through which all are connected to the phase Primary coils are short-circuited at the same time, such a yoke spread in the transformers it is brought about that the sum of all currents that. Through the remaining two Primary coils of all transformers flow, equal to the earth component of the capacitance current of the whole distribution system. A ground fault arc cannot then at all develop.

Es ist für die Erfindung unwesentlich, wie viele und wie bemessene Transformatoren, z. B. Kern- oder Manteltransformatoren, mit der 1\TUllpunktserdung versehen sind und wo sie in der Verteilungsanlage angeordnet sind. Wesentlich ist nur, daß die Summe der Ströme in den nicht kurzgeschlossenen Primärspulen so hoch ist, daß sie den erwähnten Betrag des Kapazitätsstromes ganz oder teilweise zu kompensieren vermag.It is immaterial to the invention how many and how dimensioned Transformers, e.g. B. core or jacket transformers, with the 1 \ TUllpunkt earthing and where they are located in the distribution system. Is essential only that the sum of the currents in the unshorted primary coils is so high is that they compensate the mentioned amount of the capacitance current in whole or in part able.

Vorteilhaft ist bei der beschriebenen Anordnung, daß die Anlage keinerlei Vorrichtungen, wie Erd'ungsdrosselspulen oder Löschtransformatoren, erfordert, um Erdschlußlichtbogen zu unterdrücken. Es wird lediglich eine den Verhältnissen des Netzes angepaßte Zahl von ohnehin vorhandenen Betriebstransformatoren mit Nullpunktsendung versehen. Die übrigen Transformatoren der Anlage erhalten .diese Nullpunktsendung nicht, sie können sie aber bei Veränderung der Größe des Verteilungsnetzes oder bei Schadhaft-,werden eines geerdeten Transformators erhalten, so daß man immer eine beliebige An-Passung der Induktanzen an die Kapazität des `Netzes erreichen kann.It is advantageous in the arrangement described that the system does not have any Devices such as earthing reactors or quenching transformers requires to Suppress ground fault arcs. It is only one of the conditions of the Network adapted number of operating transformers with zero point transmission that are already available Mistake. The remaining transformers in the system receive this zero point transmission not, but you can change the size of the distribution network or in case of defective, a grounded transformer will be preserved so that one always achieve any adaptation of the inductances to the capacity of the network can.

Claims (1)

PATENTANSPRUCH: Elektrische Verteilungsanlage für Ein-oder Mehrphasenstrom, gekennzeichnet durch in Stern geschaltete, mit Nullpunktserdung versehene Transformatoren in solcher Anzahl, daß die bei Erdschluß einer Phase in den Transformatoren auftretende Jochstreuung den Erdschlußstrom ganz oder teilweise kompensiert. PATENT CLAIM: Electrical distribution system for single or multi-phase current, characterized by transformers connected in a star and provided with zero point earthing in such a number that the yoke scattering occurring in the case of an earth fault of a phase in the transformers fully or partially compensates for the earth fault current.
DES54674D 1920-11-09 1920-11-09 Electrical distribution system for single or multi-phase electricity Expired DE358139C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES54674D DE358139C (en) 1920-11-09 1920-11-09 Electrical distribution system for single or multi-phase electricity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES54674D DE358139C (en) 1920-11-09 1920-11-09 Electrical distribution system for single or multi-phase electricity

Publications (1)

Publication Number Publication Date
DE358139C true DE358139C (en) 1922-09-07

Family

ID=7489953

Family Applications (1)

Application Number Title Priority Date Filing Date
DES54674D Expired DE358139C (en) 1920-11-09 1920-11-09 Electrical distribution system for single or multi-phase electricity

Country Status (1)

Country Link
DE (1) DE358139C (en)

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