DE354879C - Device to avoid electricity crossovers through the ventilation pipes in mercury rectifiers - Google Patents

Device to avoid electricity crossovers through the ventilation pipes in mercury rectifiers

Info

Publication number
DE354879C
DE354879C DEH82550D DEH0082550D DE354879C DE 354879 C DE354879 C DE 354879C DE H82550 D DEH82550 D DE H82550D DE H0082550 D DEH0082550 D DE H0082550D DE 354879 C DE354879 C DE 354879C
Authority
DE
Germany
Prior art keywords
crossovers
ventilation pipes
rectifiers
avoid electricity
mercury rectifiers
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
DEH82550D
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.)
HANNOVERSCHE GLASINSTRUMENTEN
Original Assignee
HANNOVERSCHE GLASINSTRUMENTEN
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 HANNOVERSCHE GLASINSTRUMENTEN filed Critical HANNOVERSCHE GLASINSTRUMENTEN
Priority to DEH82550D priority Critical patent/DE354879C/en
Application granted granted Critical
Publication of DE354879C publication Critical patent/DE354879C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/28—Selection of substances for gas filling; Means for obtaining the desired pressure within the tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/48—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0072—Disassembly or repair of discharge tubes
    • H01J2893/0073—Discharge tubes with liquid poolcathodes; constructional details
    • H01J2893/0074—Cathodic cups; Screens; Reflectors; Filters; Windows; Protection against mercury deposition; Returning condensed electrode material to the cathodic cup; Liquid electrode level control
    • H01J2893/0086—Gas fill; Maintaining or maintaining desired pressure; Producing, introducing or replenishing gas or vapour during operation of the tube; Getters; Gas cleaning; Electrode cleaning

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Description

Vorrichtung zur Vermeidung von Stromübergängen durch die Entlüftungsröhren bei Quecksilbergleichrichtern. Werden mehrere Gleichrichter, welche an einer gemeinsamen Hochvakuumpumpe angeschlossen sind, mit hochgespanntem Wechselstrom - z. B. in Graetzscher Schaltung -betrieben, so treten Stromübergänge von einem Gleichrichter zum anderen oder von den Gleichrichtern zur Pumpe auf.Device to avoid current transfers through the ventilation pipes with mercury rectifiers. Are several rectifiers connected to a common High vacuum pump are connected, with high voltage alternating current - z. B. in Graetzscher Circuit-operated, current transitions occur from one rectifier to another or from the rectifiers to the pump.

Es liegt der Versuch nahe, diese teilweise sehr heftigen Stromübergänge in derselben Weise zu verhindern, wie man die stillen Entladungen zwischen Metallgroßgleichrichtern und dem isolierenden Zwischenstück in den Metallrohrleitungen nach der Pumpe lokalisiert. Jedoch stellt sich heraus, daß die Elektrizitätsleitung in beiden Fällen eine grundverschiedene ist.An attempt is made to remedy these sometimes very violent current transitions in the same way as to prevent the silent discharges between large metal rectifiers and the insulating spacer located in the metal piping after the pump. However, it turns out that the conduction of electricity is fundamentally different in both cases is.

Die stillen Entladungen können sich nämlich bereits bei schlechtem Vakuum ausbilden, während die hier beschriebenen Ströme nur im allerhöchsten Vakuum möglich sind. Nur dann ist es den Elektroden ermöglicht, die langen zur Pumpe führenden Glasröhren zu durchfliegen und eine Stromleitung zu bewirken.The silent discharges can already be reflected in the bad Form a vacuum, while the currents described here only in the highest vacuum possible are. Only then is it possible for the electrodes to move the long ones leading to the pump To fly through glass tubes and cause a power line.

Aus diesem wesentlichen Unterschied zwischen beiden Elektrizitätsleitungen ergibt sich eine bedeutend einfachere Vermeidnng der vorhandenen Stromübergänge. Während man zur Lokalisierung der stillen Entladungen der Metallgroßgleichrichter zwei Elektroden so nahe beieinander anordnet, daß eine Stoßionisation im Zwischenraum unmöglich ist, reicht bei dem vorliegenden Elektronenstrom eine Elektrode bereits aus. Diese Elektrode wird direkt oder über einen Widerstand mit der Kathode des Gleichrichters verbunden und somit dauernd auf negativem Potential gehalten. Dabei kann der benutzte Widerstand ein rein Ohmscher oder ein kapazitiver oder induktiver sein. Er soll nur eventuell auftretende starke Stromstöße infolge sehr hoher Überspannungen (über i5oooo Volt) vermeiden.For this essential difference between the two electricity lines This results in a significantly simpler avoidance of the existing current transitions. While one is used to localize the silent discharges, the large metal rectifier two electrodes so close together that an impact ionization in the space is impossible, one electrode is sufficient with the electron current present the end. This electrode is connected directly or via a resistor to the cathode of the Rectifier connected and thus kept permanently at negative potential. Included The resistance used can be a purely ohmic one or a capacitive or inductive one be. It should only be used for possibly occurring strong current surges as a result of very high overvoltages Avoid (over i5oooo volts).

Diese Anordnung hat sich beim Betrieb von Hochspannungs-Quecksilbergleichrichtern, welche dauernd an eine Hochvakuumpumpe angeschlossen sein müssen, gut bewährt.This arrangement has proven itself in the operation of high-voltage mercury rectifiers, which have to be permanently connected to a high vacuum pump, well proven.

Claims (2)

PATENT-ANSPRÜCHE: i. Vorrichtung zur Vermeidung von Stromübergängen durch Entlüftungsröhren bei Quecksilbergleichrichtern, die an eine gemeinsame Hochvakuumpumpe angeschlossen sind, dadurch gekennzeichnet, daß man in die Entlüftungsröhre eine oder mehrere Elektroden einbaut, welche mit der Kathode des betreffenden Gleichrichters verbunden sind. PATENT CLAIMS: i. Device to avoid current transitions through ventilation tubes on mercury rectifiers connected to a common high vacuum pump are connected, characterized in that one in the vent tube or several electrodes built in, which are connected to the cathode of the rectifier in question are connected. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Elektroden durch Zwischenschaltung von Widerständen mit den Kathoden verbunden sind.2. Apparatus according to claim i, characterized in that the Electrodes are connected to the cathodes by interposing resistors.
DEH82550D 1920-09-26 1920-09-26 Device to avoid electricity crossovers through the ventilation pipes in mercury rectifiers Expired DE354879C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH82550D DE354879C (en) 1920-09-26 1920-09-26 Device to avoid electricity crossovers through the ventilation pipes in mercury rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH82550D DE354879C (en) 1920-09-26 1920-09-26 Device to avoid electricity crossovers through the ventilation pipes in mercury rectifiers

Publications (1)

Publication Number Publication Date
DE354879C true DE354879C (en) 1922-06-16

Family

ID=7163860

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH82550D Expired DE354879C (en) 1920-09-26 1920-09-26 Device to avoid electricity crossovers through the ventilation pipes in mercury rectifiers

Country Status (1)

Country Link
DE (1) DE354879C (en)

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