DE521563C - Device for automatically switching off a mercury vapor rectifier affected by reverse current in a rectifier system using reverse current or return relay built into the direct current circuit of the rectifier to be protected, through which the switches on the direct current and on the alternating current side of the rectifier to be returned are opened at the same time - Google Patents

Device for automatically switching off a mercury vapor rectifier affected by reverse current in a rectifier system using reverse current or return relay built into the direct current circuit of the rectifier to be protected, through which the switches on the direct current and on the alternating current side of the rectifier to be returned are opened at the same time

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Publication number
DE521563C
DE521563C DEA51962D DEA0051962D DE521563C DE 521563 C DE521563 C DE 521563C DE A51962 D DEA51962 D DE A51962D DE A0051962 D DEA0051962 D DE A0051962D DE 521563 C DE521563 C DE 521563C
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DE
Germany
Prior art keywords
rectifier
current
direct current
reverse
reverse current
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
DEA51962D
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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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Priority to DEA51962D priority Critical patent/DE521563C/en
Application granted granted Critical
Publication of DE521563C publication Critical patent/DE521563C/en
Expired legal-status Critical Current

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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
    • H02H7/10—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 for converters; for rectifiers
    • H02H7/12—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 for converters; for rectifiers for static converters or rectifiers
    • H02H7/1209—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 for converters; for rectifiers for static converters or rectifiers for converters using only discharge tubes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

Gegenstand des Patents 519 021 ist eine Einrichtung zum selbsttätigen Abschalten eines von Rückstrom betroffenen Quecksilberdampfgleichrichters in einer Gleichrichteranlage unter Verwendung von in den Gleichstromkreis der zu schützenden Gleichrichter eingebauten Rückstrom- oder Rückleitungsrelais, die den Schalter auf der Gleichstromseite auslösen, bei der durch das Rückstromrelais auf der Gleichstromseite auch der Schalter auf der Wechselstromseite des rückzündenden Gleichrichters zugleich geöffnet wird. Die Auslösespule des Schalters auf der Wechselstromseite wird dabei durch einen Stromwandler auf der Wechselstromseite gespeist und ist im Normalbetrieb durch den Anker des Rückstromrelais auf der Gleichstromseite kurzgeschlossen.The subject of patent 519 021 is a Device for automatically switching off a mercury vapor rectifier affected by reverse current in a rectifier system using in the DC circuit of the rectifier to be protected built-in reverse current or return relay that switches the switch on the DC side trigger, with the reverse current relay on the direct current side also the switch on the alternating current side of the re-igniting Rectifier is opened at the same time. The trip coil of the switch on the AC side is activated by a Current transformer fed on the AC side and is in normal operation by the Armature of the reverse current relay short-circuited on the direct current side.

Gemäß der Erfindung wird nun eine derartige Einrichtung in der Weise weiter ausgebildet, daß sowohl die Auslösespule des .Schalters auf der Wecbselstromseite als auch die des Schalters auf der Gleichstromseite von dem Stromwandler auf der Wechselstromseite des Gleichrichters gespeist wird.According to the invention, such a device is now further developed in such a way that that both the trip coil of the .Schalters on the AC side as well that of the switch on the DC side from the current transformer on the AC side of the rectifier is fed.

In der Zeichnung ist schematisch ein Ausführungsbeispiel der Erfindung dargestellt, und zwar der Einfachheit halber für eine Einphasenanlage. In the drawing, an embodiment of the invention is shown schematically, for the sake of simplicity for a single-phase system.

An die Wechselstromsammelschienen α ist über den Ölschalter b und den Transformator c der Gleichrichter d angeschlossen, der über den Gleichstromschnellschalter e auf die Gleichstromsammelschienen f arbeitet. Zwischen Gleichrichter d und Gleichstromsammelschienen / ist in die Leitung ein Rückstrom- oder Rückleitungsrelais g eingebaut, das bei Rückstrom im Shunt h momentan anspricht. Die Auslösespulen m und η der Schalter b und e liegen in Reihe und in Reihe mit der Sekundärwicklung des Stromwandlers k auf der Wechselstromseite. Die Sekundärwicklung des Stromwandlers ist im Normalbetrieb durch den Anker i des Rückstromrelais g kürzgeschlossen.The rectifier d is connected to the alternating current busbars α via the oil switch b and the transformer c and operates on the direct current busbars f via the direct current high-speed switch e. A reverse current or return relay g is built into the line between rectifier d and direct current busbars /, which responds momentarily to reverse current in shunt h. The trip coils m and η of the switches b and e are in series and in series with the secondary winding of the current transformer k on the alternating current side. The secondary winding of the current transformer is short-circuited during normal operation by the armature i of the reverse current relay g.

Bei Ansprechen des Rückstromrelais wird der Kurzschluß der Sekundärwicklung des Stromwandlers aufgehoben, wodurch die Auslösespulen m und 11 gespeist werden, die die Schalter b und e öffnen. Anstatt die Sekun-When the reverse current relay responds, the short circuit of the secondary winding of the current transformer is canceled, whereby the trip coils m and 11 are fed, which open the switches b and e. Instead of the seconds

därwicklung des Stromwandlers durch den Anker des Rückstromrelais im Normalbetrieb kurzzuschließen, kann auch der Stromkreis für die in Reibe mit der Sekundärwicklung liegenden Auslösespulen der Schalter auf der Gleich- und Wechselstromseite durch das Rückstromrelais geschlossen werden.The winding of the current transformer through the armature of the reverse current relay in normal operation shorting out the circuit can also be used for being in friction with the secondary winding tripping coils of the switches on the direct and alternating current side by the Reverse current relay are closed.

Claims (3)

Patentansprüche:Patent claims: i. Einrichtung zum selbsttätigen Abschalten eines von Rückstrom betroffenen Quecksilberdampfgleichrichters in einer Gleichrichteranlage unter Verwendung von in den Gleichstromlireis der zu schützenden Gleichrichter eingebautem Rückstrom- oder RücHeitungsrelais, durch, das die Schalter auf der Gleichstrom- und auf der Wechselstromseite des rückzündenden Gleichrichters zugleich geöffnet werden, nach Patent 519 021, dadurch gekennzeichnet, daß sowohl die Auslösespule des Schalters auf der Wechselstromseite als auch die des Schalters auf der Gleichstromseite von dem Stromwandler auf der Wechselstromseite gespeist wird.i. Device for automatic shutdown using a mercury vapor rectifier affected by reverse current in a rectifier system of the reverse current circuit built into the direct current line of the rectifier to be protected or return relay, through that the switches on the direct current and on the alternating current side of the re-igniting Rectifier can be opened at the same time, according to patent 519 021, characterized in that that both the trip coil of the switch on the AC side as that of the switch on the direct current side is also fed by the current transformer on the alternating current side. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sekundärwicklung des Stromwandlers im Normalbetrieb durch den Anker des Rückstrotn- oder Rückleitungsrelais kurzgeschlossen ist.2. Device according to claim 1, characterized characterized in that the secondary winding of the current transformer in normal operation short-circuited by the armature of the reverse flow or return relay is. 3. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Stromkreis für die in Reihe untereinander und mit der Sekundärwicklung des Stromwandlers liegenden Auslösespulen der Schalter auf der Gleich- und Wechselstromseite durch das Rückstromrelais geschlossen wird.3. Device according to claim 1, characterized in that the circuit for those in series with each other and with the secondary winding of the current transformer tripping coils of the switches on the direct and alternating current side the reverse current relay is closed. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEA51962D 1927-09-13 1927-09-13 Device for automatically switching off a mercury vapor rectifier affected by reverse current in a rectifier system using reverse current or return relay built into the direct current circuit of the rectifier to be protected, through which the switches on the direct current and on the alternating current side of the rectifier to be returned are opened at the same time Expired DE521563C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA51962D DE521563C (en) 1927-09-13 1927-09-13 Device for automatically switching off a mercury vapor rectifier affected by reverse current in a rectifier system using reverse current or return relay built into the direct current circuit of the rectifier to be protected, through which the switches on the direct current and on the alternating current side of the rectifier to be returned are opened at the same time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA51962D DE521563C (en) 1927-09-13 1927-09-13 Device for automatically switching off a mercury vapor rectifier affected by reverse current in a rectifier system using reverse current or return relay built into the direct current circuit of the rectifier to be protected, through which the switches on the direct current and on the alternating current side of the rectifier to be returned are opened at the same time

Publications (1)

Publication Number Publication Date
DE521563C true DE521563C (en) 1931-04-02

Family

ID=6938216

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA51962D Expired DE521563C (en) 1927-09-13 1927-09-13 Device for automatically switching off a mercury vapor rectifier affected by reverse current in a rectifier system using reverse current or return relay built into the direct current circuit of the rectifier to be protected, through which the switches on the direct current and on the alternating current side of the rectifier to be returned are opened at the same time

Country Status (1)

Country Link
DE (1) DE521563C (en)

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