DE674468C - Protection arrangement for electrical networks - Google Patents

Protection arrangement for electrical networks

Info

Publication number
DE674468C
DE674468C DEA83957D DEA0083957D DE674468C DE 674468 C DE674468 C DE 674468C DE A83957 D DEA83957 D DE A83957D DE A0083957 D DEA0083957 D DE A0083957D DE 674468 C DE674468 C DE 674468C
Authority
DE
Germany
Prior art keywords
station
switch
electrical networks
protection arrangement
feeding
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
DEA83957D
Other languages
German (de)
Inventor
Heinz Gutmann
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
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 AEG AG filed Critical AEG AG
Priority to DEA83957D priority Critical patent/DE674468C/en
Application granted granted Critical
Publication of DE674468C publication Critical patent/DE674468C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders

Landscapes

  • Keying Circuit Devices (AREA)

Description

Schutzanordnuniz für elektrische Netze Das Hauptpatent betrifft eine Schutzanordnung fürelektrische Netze, bei der die Abschaltung ,an den Streckenenden von dem Ansprechen von Anregerelais und Zeitrelais abhängig ist und bei der lein Auslöseimpuls, der von dem Ausbleiben eines Ruhestroms abhängig ist, vom einen Streckenende an das andere zur Betätigung des Zeitrelais mit Grundzeit gegeben wird.Protection arrangement for electrical networks The main patent concerns one Protection arrangement for electrical networks, in which the disconnection, at the ends of the line depends on the activation of the trigger relay and timing relay and on the lein Trigger pulse, which depends on the absence of a quiescent current, from one end of the line to the other is given to actuate the timing relay with base time.

Brei. dieser Anordnung ist davon ausgegangen, daß es in allen Fällen erwünscht ist, eine zweiseitige Abschaltung der fehlerhaften Leitungsstrecke zu bewirken, da diese im allgemeinen jauch zweiseitig gespeist wird. Für den Fall neinseitiger Speisung ist @es jedoch keineswegs eindeutig ierrvünscht, den Schalter der nichtspeisenden Station mitzunehmen, vielmehr kann @es den Anforderungen der Betriebsführung wesentlich besser entsprechen, daß der Schalter in der nichtspeisenden Station eingeschaltet bleibt. Um ,auch bei wechselnden Bedürfnissen der Betriebsführung nicht jedesmal eine Änderung der Schaltung vornehmen zu müssen, wird erfindungsgemäß vorgeschlagen, einen einfachen Wahlschalter vorzusehen, der die Auslösung des nichtspeisenden Schalters abschaltet oder kurzschließt, wobei sich die Wirkung dieses Wahlschalters nur auf den Fall beschränken darf, daß der Schalter .nicht den fehlerhaften Streckenabschnitt speist.Porridge. this arrangement is assumed to be the case in all cases it is desirable to switch off the faulty line at both ends cause it is generally fed from two sides. In the event of no-one Feeding is by no means clearly desired, the switch of the non-feeding ones To take the station with you, it can essentially meet the requirements of operational management better correspond to the fact that the switch in the non-feeding station is switched on remain. Um, not every time, even with changing management needs to have to make a change to the circuit is proposed according to the invention, Provide a simple selector switch that triggers the non-feeding switch switches off or short-circuits, with the effect of this selector switch only on may limit the case that the switch .not the faulty route section feeds.

Die Unterscheidung, ob der Streckenabschnitt über den Schalter gespeist wird oder inic'ht, kann. ientweder schon im Normalbetrieb durch Richtungsrelais oder @entsprechende Maßnahmen getroffen werden, andererseits ist sie auch beim Auftreten des Fehlers selbst leicht- zu gewinnen, da ein Kurzschluß zwischen der speisenden Station und der nichtspeisenden in der letzteren eine starke Spannungsabsenkung bei gleichzeitiger Stromverminderung, falls über diese Station Verbraucher;aangeschlossensind,bewirkt. Durch! diese Merkmale, also entweder Unterspannung allein oder Unterspannung in Verbindung mit Unterstrom, läßt- sich beim Aut,-treten des Fehlers ein eindeutiges Kriter* gewinnen, daß der Schalter nicht speist, nur für diesen Fall darf die Wirkung d: Wahlschalters aufrechterhalten bleiben.The distinction as to whether the route section is fed via the switch will or inic'ht, may. i either in normal operation through directional relays or @ appropriate measures are taken, on the other hand it is also when it occurs the error itself is easy to win, since there is a short circuit between the feeding Station and the non-feeding one in the latter a strong voltage drop with simultaneous current reduction, if via this station Consumers; are connected, causes. By! these characteristics, so either undervoltage alone or undervoltage in Connection with undercurrent, when the error occurs, an unambiguous Criter * win that the switch does not feed, the effect is only allowed in this case d: selector switch maintained.

Claims (2)

PATENTANSPRÜCHE: r. Schutzanordnung für elektrische Netzei nach Patent 666 076, dadurch gekennzeichnet, daß bei der Möglichkeit .einseitiger Speisung eines Streckenabschnitts in der dann nichtspeisenden Station ein Wahlschalter -vorgesehen ist, der auszuwählen gestattet, ob der Schalter dieser Station beim Auftreteneines Fehlers; der durch die Schutzeinrichtung erfaßt wird, mitgenommen werden,oder geschlosse.n bleiben soll. PATENT CLAIMS: r. Protection arrangement for electrical networks according to Patent 666 076, characterized in that, when a section of the route can be fed on one side in the station which is then not feeding, a selector switch is provided which allows to select whether the switch of this station should occur if an error occurs; which is detected by the protective device, should be taken along, or should remain closed. 2. Anordnung nach Anspruch r; dadurch gekennzeichnet, daß durch zusätzliche Mittel die Wirkung des Wahlschalters nur so lange ,aufrechterhalten wird, wie die betreffende Station tatsächlich nicht speist, während bei eintretender zweiseitiger Speisung die Auslösung wieder zweiseitig bewirkt wird.2. Arrangement according to claim r; characterized in that by additional Means the effect of the selector switch is only sustained as long as that station in question actually does not feed, while when entering bilateral Supply the tripping is effected on both sides again.
DEA83957D 1937-08-19 1937-08-19 Protection arrangement for electrical networks Expired DE674468C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA83957D DE674468C (en) 1937-08-19 1937-08-19 Protection arrangement for electrical networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA83957D DE674468C (en) 1937-08-19 1937-08-19 Protection arrangement for electrical networks

Publications (1)

Publication Number Publication Date
DE674468C true DE674468C (en) 1939-04-14

Family

ID=6949044

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA83957D Expired DE674468C (en) 1937-08-19 1937-08-19 Protection arrangement for electrical networks

Country Status (1)

Country Link
DE (1) DE674468C (en)

Similar Documents

Publication Publication Date Title
DE674468C (en) Protection arrangement for electrical networks
DE1920261A1 (en) Arrangement for damping overvoltages
DE423169C (en) Arrangement for switching off lines, transformers, etc. Like. In electrical distribution systems with overcurrent
DE596057C (en) Circuit for electrical energy transmission using double lines
DE481910C (en) Protection circuit for parallel lines
DE613688C (en) Arrangement on electrical systems with a grounded or neutralized protective line
AT103176B (en) Device for displaying overloads in electrical systems.
DE421797C (en) Electromagnetic current limiter
AT167064B (en) Contact arrangement for electrical devices, in particular electrical fuses
DE404867C (en) Device for the automatic shutdown of disturbed lines in electrical power networks
DE469831C (en) Arrangement for selective protection for double lines
DE589174C (en) Protection circuit for two parallel lines
DE576431C (en) Device for restarting as a result of a fault in failed networks or network parts
DE675394C (en) Arrangement for the rapid protection of cables and switches against severe short circuits
DE930879C (en) Protection circuit
AT155769B (en) Device for interrupting electrical circuits with automatic triggering.
DE1001750B (en) Protection and monitoring device for electrical feed lines, preferably of lighting systems for underground operation
DE362523C (en) Arrangement for switching off several parallel cables
DE341302C (en) Connection device, especially for electromedical purposes, with a voltage divider each for the various types of current
DE710704C (en) Contact protection circuit for alternating current networks
DE388978C (en) Circuit arrangement for electrical alarm systems with closed-circuit operation
DE607022C (en) Contactor control for pole-changing motors with protection against phase short circuit
DE498911C (en) Circuit arrangement for protecting electrical lines
DE337105C (en) Section protection of lines with branching off
DE662943C (en) Selective protection device for a network node depending on the line resistance