DE502566C - Arrangement for relays in three-phase networks to prevent incorrect switching in the event of double earth faults - Google Patents

Arrangement for relays in three-phase networks to prevent incorrect switching in the event of double earth faults

Info

Publication number
DE502566C
DE502566C DEA53913D DEA0053913D DE502566C DE 502566 C DE502566 C DE 502566C DE A53913 D DEA53913 D DE A53913D DE A0053913 D DEA0053913 D DE A0053913D DE 502566 C DE502566 C DE 502566C
Authority
DE
Germany
Prior art keywords
arrangement
relays
event
prevent incorrect
phase networks
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
DEA53913D
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA53913D priority Critical patent/DE502566C/en
Application granted granted Critical
Publication of DE502566C publication Critical patent/DE502566C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0038—Details of emergency protective circuit arrangements concerning the connection of the detecting means, e.g. for reducing their number
    • H02H1/0046—Commutating the detecting means in dependance of the fault, e.g. for reducing their number

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

BERLIN. GEDRUCKT IN DER REICHSDr.'ICKERi'JBERLIN. PRINTED IN THE REICHSDr.'ICKERi'J

Claims (2)

Patentansprüche:Patent claims: 1. Anordnung für Relais in Dreiphasennetzen zur Verhütung von Fehlschaltungen bei Doppelerdschluß, dadurch gekennzeichnet, daß neben der Stromerhöhung auch die Erniedrigung der Spannung des Nullpunkts gegen Erde zur Bewirkung der bei Doppelerdschluß erforderlichen Umschaltungen, Sperrungen o. dgl. von Relais dient.1. Arrangement for relays in three-phase networks to prevent incorrect switching with double earth fault, characterized in that in addition to the increase in current also the decrease in the voltage of the Zero point to earth to effect the switching, blocking or the like required in the event of a double earth fault Relay is used. 2. Anordnung nach Anspruch 1, gekennzeichnet durch einen Waagebalken, auf den vom Strom und von der Spannung erzeugte Kräfte in entgegengesetztem Sinne einwirken.2. Arrangement according to claim 1, characterized by a balance beam on the forces generated by the current and the voltage in opposite directions Affect the senses. *) Von dem Patentsucher ist als der Erfinder angegeben worden;*) The inventor has been indicated by the patent seeker; Josef Biermanns in Berlin-Karlshorst.Josef Biermanns in Berlin-Karlshorst.
DEA53913D Arrangement for relays in three-phase networks to prevent incorrect switching in the event of double earth faults Expired DE502566C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA53913D DE502566C (en) Arrangement for relays in three-phase networks to prevent incorrect switching in the event of double earth faults

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA53913D DE502566C (en) Arrangement for relays in three-phase networks to prevent incorrect switching in the event of double earth faults

Publications (1)

Publication Number Publication Date
DE502566C true DE502566C (en) 1930-07-18

Family

ID=6939221

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA53913D Expired DE502566C (en) Arrangement for relays in three-phase networks to prevent incorrect switching in the event of double earth faults

Country Status (1)

Country Link
DE (1) DE502566C (en)

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