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)

Similar Documents

Publication Publication Date Title
DE102017104274A1 (en) Method for determining a fault location in a ring-structured electrical network
DE1176288B (en) Reactor safety circuit based on the 2-of-3 system
DE956117C (en) Alarm or control system
DE403874C (en) Safety system for the automatic shutdown of faulty sections of electrical line networks
DE1906615A1 (en) Converter with overcurrent protection
AT80848B (en) Device for identifying coil defects. Device for identifying coil defects.
DE532028C (en) Quick switch
DE481938C (en) Procedure to prevent damage to cables that are equipped with monitoring devices
DE614651C (en) Circuit for error monitoring and error messages in direct current cables
AT119880B (en) Circuit to protect power lines against malfunctions.
DE897584C (en) Time selective protection device
DE402102C (en) Protection device for electrical distribution systems
DE444003C (en) Protection circuit for transformers
DE560008C (en) Protection and monitoring device for alternating current machines and apparatus
DE744096C (en) Device to prevent false triggering of protective devices when inductive system parts are switched on
DE398585C (en) Speed control device for railroad trains u. like
DE464097C (en) Switching of line protection relays for three-phase current, which work depending on both the voltage and the current strength of the short-circuit circuit
DE557551C (en) Protective circuit for the compulsory retention of the voltage distribution to earth along the neutral conductor in low-voltage networks
DE434777C (en) Disconnection arrangement incorrect? using wattmetric and?
DE617265C (en) Protection device for parallel lines of an alternating current network
DE941496C (en) Circuit arrangement for remote control according to the combination system for telecommunications, in particular telephone systems
DE585605C (en) Equipment for the protection of electrical machines and apparatus
DE593612C (en) Circuit for protecting parallel multiphase lines against earth faults
DE507144C (en) Device to increase the sensitivity limit of reverse relays in alternating current low voltage distribution networks
DE506563C (en) Device for switching off parallel lines, in particular a cable divided into several conductors