DE403874C - Safety system for the automatic shutdown of faulty sections of electrical line networks - Google Patents

Safety system for the automatic shutdown of faulty sections of electrical line networks

Info

Publication number
DE403874C
DE403874C DEH83236D DEH0083236D DE403874C DE 403874 C DE403874 C DE 403874C DE H83236 D DEH83236 D DE H83236D DE H0083236 D DEH0083236 D DE H0083236D DE 403874 C DE403874 C DE 403874C
Authority
DE
Germany
Prior art keywords
safety system
electrical line
automatic shutdown
line networks
faulty sections
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
DEH83236D
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.)
NAAMLOOZE VENNOOTSCHAP LIJN PR
Original Assignee
NAAMLOOZE VENNOOTSCHAP LIJN PR
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 NAAMLOOZE VENNOOTSCHAP LIJN PR filed Critical NAAMLOOZE VENNOOTSCHAP LIJN PR
Priority to DEH83236D priority Critical patent/DE403874C/en
Application granted granted Critical
Publication of DE403874C publication Critical patent/DE403874C/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
    • H02H7/267—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 for parallel lines and wires

Landscapes

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

Description

Sicherheitssystem zum selbsttätigen Abschalten fehlerhafter Teilstrecken von elektrischen Leitungsnetzen.Safety system for the automatic shutdown of faulty sections of electrical power networks.

Zusatz zum Patent 403873. Die Erfindung betrifft eine weitere Vervollkommnung des Sicherheitssystems gemäß dem Zusatzpatent ,103873. In diesem ist angegeben, daß zur Erzielung eines möglichst vollkommenen Gleichgewichtes zweckmäßig für jede Teilstrecke zwei ungleiche Transformatoren verwendet werden, deren Primär-und Sekundärwindungszahlen voneinander verschieden sind. Addendum to patent 403873. The invention relates to a further improvement of the security system according to the additional patent, 103873. It is stated in this that, in order to achieve the most perfect possible equilibrium, it is advisable to use two unequal transformers for each section, the numbers of primary and secondary turns of which are different from one another.

Die vorliegende Erfindung beruht auf der Erkenntnis, daß e.z; für die praktischen Betriebsverhaltnisse vorteilhaft ist, die Transformatoren auf einer oder auf beiden Seiten mit Widerständen oder Kondensatoren zu überbrücken.The present invention is based on the finding that e.z; for the practical operating conditions is advantageous, the transformers on one or bridged with resistors or capacitors on both sides.

Wenn man Widerstände für die Überbrückung benutzt, so darf durch deren Einbau das Stromgleichgewicht der Anordnung im normalen Betrieb nicht gestört werden; anderseits darf die Empfindlichkeit der Anordnung für die Ausschaltung im Fehlerfalle dadurch nicht erheblich beeinträchtigt werden.If you use resistors for bridging, you may use them Installation, the current balance of the arrangement is not disturbed during normal operation; on the other hand, the sensitivity of the arrangement for switching off in the event of a fault are not significantly affected by this.

Diese Schwierigkeiten lassen sich in folgender Weise überwinden Man kann verhältnismäßig sehr kleine Ohmzahlen für die primären und sekundären Widerstände verwenden und auch die primären Ohmzahlen ziemlich unabhängig von den sekundären Ohmzahlen wählen; die beiden primären Ohmzahlen und die beiden sekundären Ohmzahlen müssen aber unter sich im Verhältnis der Windungszahlen stehen, zu denen sie parallel geschaltet sind.These difficulties can be overcome in the following way: Man can have relatively very small ohms for the primary and secondary resistances use and also the primary ohm numbers pretty much independent of the secondary ones Choose ohm numbers; the two primary ohms and the two secondary ohms but must be in proportion to the number of turns to which they are parallel are switched.

Wenn also beispielsweise der eine Transformator die halbe Primärwindungszahl hat und 2o Prozent mehr Sekundärwindungen als der andere, so muß auch sein primärer Parallelwiderstand die halbe Ohmzahl wie der Primärwiderstand des anderen, sein Sekundärwiderstand eine um 2o Prozent höhere Ohmzahl haben als der Sekundärwiderstand des anderen Transformators.So if, for example, one transformer has half the number of primary turns and has 20 percent more secondary turns than the other, so must be primary Parallel resistance must be half the ohm number as the primary resistance of the other Secondary resistance have an ohm number 20 percent higher than the secondary resistance of the other transformer.

Claims (1)

PATENT-ANSPRUCH: Sicherheitssystem zum selbsttätigen Abschalten fehlerhafter Teilstrecken von elektrischen Leitungsnetzen nach Patent ,1o3873, dadurch gekennzeichnet, daß die Transformatoren durch Widerstände überbrückt sind, deren in demselben Stromzweig liegende Ohmzahlen sich wie die von ihnen überbrückten Windungszahlen verhalten.PATENT CLAIM: Safety system for automatic shutdown of faulty Sections of electrical line networks according to patent 1o3873, characterized in, that the transformers are bridged by resistors, their in the same branch lying ohmic numbers behave like the number of turns bridged by them.
DEH83236D 1920-11-26 1920-11-26 Safety system for the automatic shutdown of faulty sections of electrical line networks Expired DE403874C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH83236D DE403874C (en) 1920-11-26 1920-11-26 Safety system for the automatic shutdown of faulty sections of electrical line networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH83236D DE403874C (en) 1920-11-26 1920-11-26 Safety system for the automatic shutdown of faulty sections of electrical line networks

Publications (1)

Publication Number Publication Date
DE403874C true DE403874C (en) 1924-10-14

Family

ID=7163975

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH83236D Expired DE403874C (en) 1920-11-26 1920-11-26 Safety system for the automatic shutdown of faulty sections of electrical line networks

Country Status (1)

Country Link
DE (1) DE403874C (en)

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