DE897585C - Device for lowering the midpoint surge voltage of single or multi-phase transformers - Google Patents
Device for lowering the midpoint surge voltage of single or multi-phase transformersInfo
- Publication number
- DE897585C DE897585C DES2519D DES0002519D DE897585C DE 897585 C DE897585 C DE 897585C DE S2519 D DES2519 D DE S2519D DE S0002519 D DES0002519 D DE S0002519D DE 897585 C DE897585 C DE 897585C
- Authority
- DE
- Germany
- Prior art keywords
- lowering
- midpoint
- surge voltage
- secondary winding
- phase transformers
- 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
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
- H02H7/04—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 transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
In der Patentschrift 744 rot ist eine Vorrichtung zur Absenkung ,der Mittelpunktstoßspannung von Ein- oder Mehrphasentransformatoren unter Zu hilfenahme einer zwischen Erde und dem Mittelp=kt eingeschalteten Löschspule mit Sekundä@rwicklung beschrieben. An die Seknndäirwicklung ist als überspannungsschwtzvorrichtung ein Kondensator angesäbliossen, dessen -auf :die Prämärwicklung ider Löschspule bezogene Kapajzvtät etwa gleich oder größer eist alis diie Erdkapazität der Trans formatoramo.rdnung.In the patent 744 red is a device for lowering, the Midpoint impulse voltage from single or multi-phase transformers with the help an extinguishing coil with secondary winding connected between earth and the center point described. An overvoltage protection device is attached to the secondary winding Capacitor attached, whose -related to: the primary winding in the quenching coil The capacity is approximately equal to or greater than the earth capacity of the transformer order.
Dia namentlich bei, Anlagen mit höheren Lenistungen:, in denen große überspannungsenergien auftreten, der Kondensator erfhebliche Abmessungen annehmen mwßte, liegt der Erfindung die Aufgabe zugrunde, diese bekannte Anordnung zu, verbessern und wirtschaftlicher zu gestalten.Specifically for systems with higher performance: in which large Overvoltage energies occur, the capacitor assume considerable dimensions The object of the invention is to improve this known arrangement and to make it more economical.
Erfindungsgemäß isst zu diesem Zweck an Stelle eines Kon denslato:rs ein Überspannungsableiter an die Sekwnd!ärwicklung angeschlossen. Dass Ableitverm%#en desi übersipann ungsableiters wird dabd so gewählt, daß er ,sowohl idie :bei mehrpoligen GewitterüiberspannunvgeniauftretendenÜiberspannungsenergien wie auch die infolge Abschaltens von Doppelerdschlüssen an der Löschspule entstehenden. Überspannungen iabzuleiten vermag.According to the invention, instead of a condensate, eats for this purpose a surge arrester connected to the secondary winding. That discharge capacity The surge arrester is chosen so that it, both in the case of multi-pole Thunderstorm overvoltage as well as the resulting overvoltage energies Disconnection of double earth faults on the quenching coil. Surges i can derive.
Die Erfindung bedient sich also der für die Bekämpfung stationärer Überspannungen ibzw.- Kippschwingungen: am Sternpunkt, @die mit Betrie@bsf.requenz vor sich, gehen, bekanntgewordenen Mittel zur Dämpfung- bzw. Absenkung kurezeitiger Überspannungen unter Vermevdung von unmittelbar am Sternpunkt :angeschlossenen Schutzeinrichtungen. sowie unter Vermeidung der parallel zu einem Teil ,der Nullpunktdrossel liegenden Reihenschaltung von Funkenstrecke und Dämpfungswiderstand.The invention thus makes use of that for combating stationary Overvoltages and / or breakdown oscillations: at the star point, @the with Betrie@bsf.requency ahead, go, known means for damping or lowering short-term Overvoltages with avoidance of protective devices connected directly to the star point. as well as avoiding the parallel to one part, the zero point throttle Series connection of spark gap and damping resistor.
Einige Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt.Some embodiments of the invention are shown in the drawing.
Die Hochspannungswicklung i der Löschspule ist in einem Behiällter 2 mit dien Dwrchführungslisolatoreal 3 bis 5: angeordnet. Dias eine Enide fx edler Hochspannungswicklung i ist über Iden DurchführungsisolatOr 3 mit dem @dttelpunkt MP des vorgeschalteten Leistungstransiormators verbunden, während das, andere Ende 7 über den, Isolator 5 an Erde hegt. Die eine Wicklungalaige 8 bildet die SekundärwmcklungderLöschspule. Die entsprschendeAnzapfuriig g ist über :dien Isolator 4 herawsigeführt. io ist der an die, Sekundärwicklung S angeschlossene übers.pannnungsiaibleiter. Wie gestrichelt angedeutet, l"ann :der Überspannungsieiter ioo a-udi inme,#haI1`b@ dies Kes- sels. 2 derart angeordneit werden, daß sein gieerdeter Flansch mit dem Wicklmgseuäb 7 verbunden ist unidl dien Ablleiter die Möglichkeit bat, ins Freie auszublasen.The high-voltage winding i of the quenching coil is arranged in a container 2 with a through-guide isolator area 3 to 5 :. One end of the noble high-voltage winding i is connected via the bushing insulator 3 to the center MP of the upstream power transformer, while the other end 7 is connected to earth via the insulator 5. One winding section 8 forms the secondary winding of the quenching coil. The corresponding tapping g is brought out via the insulator 4. io is the overvoltage conductor connected to the secondary winding S. As indicated by dashed lines, it is possible to arrange the surge arrester ioo a-udi inme, # haI1`b @ this boiler. 2 in such a way that its cast-earthed flange is connected to the winding connector 7 and the arrester has the possibility of going outside blow out.
Ist der Endpunkt der Hochspannungswicklung i nicht geerdet, sondern leispüelswense an, eine Saugspule oder einen Saugtransformator angeschlossen, so ist es, zweckmäßig"beiide Anzapfileitungen m der Sekawdärwicklung 8 gemeinsam @dürch einen Isolator icz zu dem Überspannungsablenter io herauszuführen rund in diesem Fall deal Übenspannungsableiter auf dein Kopf dies Durrchführumgsisolutors 12 anzuordnen, wne Fig. 2 zeugt.If the end point of the high voltage winding i is not earthed, but leispüelswense connected to a suction coil or a suction transformer, so it is useful "both tapping lines m the secondary winding 8 together @ by an isolator icz to the surge arrester io lead out around in this If you have to place surge arresters on your head, wne Fig. 2 testifies.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES2519D DE897585C (en) | 1941-11-25 | 1941-11-25 | Device for lowering the midpoint surge voltage of single or multi-phase transformers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES2519D DE897585C (en) | 1941-11-25 | 1941-11-25 | Device for lowering the midpoint surge voltage of single or multi-phase transformers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE897585C true DE897585C (en) | 1953-11-23 |
Family
ID=7469657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES2519D Expired DE897585C (en) | 1941-11-25 | 1941-11-25 | Device for lowering the midpoint surge voltage of single or multi-phase transformers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE897585C (en) |
-
1941
- 1941-11-25 DE DES2519D patent/DE897585C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE897585C (en) | Device for lowering the midpoint surge voltage of single or multi-phase transformers | |
DE2218962A1 (en) | Arrangement, with valve drain | |
DE824812C (en) | Protection device for electrical systems against surge currents | |
DE927103C (en) | Overvoltage protection arrangement and protection circuit for protection against switching overvoltages | |
US2600149A (en) | Protective system | |
DE723478C (en) | Protection device against overvoltages for electrical machines and apparatus | |
DE475419C (en) | Electric cylinder capacitor with overvoltage protection against breakdown consisting of spark gaps and damping resistor | |
DE582742C (en) | Device for monitoring the insulation status of alternators, transformers, etc. like | |
DE951021C (en) | Earth fault protection device | |
CH230640A (en) | Device for lowering the midpoint surge voltage of single and multi-phase transformers. | |
DE2536077A1 (en) | Overvoltage protection system for telephone lines - has antiparallel connected semiconductors triggered by voltage peaks to give fast response time | |
DE531820C (en) | Protection device against overvoltages | |
DE577111C (en) | Protection device for capacitors connected to an alternating current network and connected in series with inductivities against flashovers between the assignments | |
AT105553B (en) | Electrical capacitor with discharge spark gaps. | |
DE749326C (en) | Protection device for current transformers against overvoltages | |
CH219285A (en) | Arrangement for detecting the frame closure of electrical windings. | |
AT111496B (en) | Fuse arrangement for telecommunications systems endangered by high voltage currents. | |
DE725075C (en) | Overvoltage protection | |
DE901812C (en) | Device for lowering the midpoint surge voltage of single or multi-phase transformers | |
Elek et al. | Safe clearances and protection against shocks during live-line work | |
DE1009709B (en) | Protection device for high-voltage systems | |
DE724115C (en) | Overvoltage protection for multi-phase windings of electrical equipment connected to an isolated neutral point | |
DE651295C (en) | Capacitor battery connected in star | |
DE389828C (en) | Lightning protection device consisting of a number of spark gaps connected in series | |
DE1805207U (en) | PROTECTIVE DEVICE FOR DRY RECTIFIER. |