DE1083892B - Arrangement for maintaining the insulating strength of the liquid dielectric which absorbs the potential difference between switching devices at high voltage potential and earth, especially for load switches in transformers - Google Patents
Arrangement for maintaining the insulating strength of the liquid dielectric which absorbs the potential difference between switching devices at high voltage potential and earth, especially for load switches in transformersInfo
- Publication number
- DE1083892B DE1083892B DEL26704A DEL0026704A DE1083892B DE 1083892 B DE1083892 B DE 1083892B DE L26704 A DEL26704 A DE L26704A DE L0026704 A DEL0026704 A DE L0026704A DE 1083892 B DE1083892 B DE 1083892B
- Authority
- DE
- Germany
- Prior art keywords
- arrangement according
- electrodes
- earth
- walls
- shielding
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/26—Arrangements of fuses, resistors, voltage arresters or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulation Of General Use Transformers (AREA)
Description
. _ mittelbar umgebende Dielektrikum keinerlei. Schwie-. _ indirectly surrounding dielectric no. Difficult
Dielektrikum nicht mit dem die Potentialdifferenz 30 rigkeiten, da kein besonderes, die Verbindung mit der zwischen Lastumschalter und Erde aufnehmenden Außenluft herstellendes Rohr od. dgl. erforderlich ist, flüssigen Dielektrikum vermischen kann. Die beim da hierbei die Schaltgase in das Ausdehnungsgefäß Umschaltvorgang entstehenden Schaltgase können in abströmen.Dielectric does not match the potential difference, as there is no special connection with the between the diverter switch and the ground receiving outside air producing pipe or the like is required, liquid dielectric can mix. The while doing the switching gases in the expansion tank Switching gases produced during the switching process can flow off.
dem die Kapsel mit der Außenluft verbindenden Rohr ' Einige Ausführungsbeispiele der Erfindung werden aufsteigen und entweichen, ohne durch Gebiete mit 35 nachstehend an Hand einiger schematisch dargestell-Potentialgefälle zu gelangen. Aus diesem Grunde ter Lastumschalteranordnungen für Transformatoren macht diese Anordnung einen erheblichen Aufwand mit Stufenschalter, bei denen der Lastumschalter in erforderlich. ■ einer im Transformatotölraum oder in einer Kessel-the tube connecting the capsule to the outside air. Some exemplary embodiments of the invention rise and escape without going through areas with 35 below on the basis of some schematically illustrated potential gradient to get. For this reason, the diverter switch arrangements for transformers this arrangement makes a considerable effort with tap changers in which the diverter switch is in necessary. ■ one in the transformer oil room or in a boiler
In Abweichung vom Bekannten wird eine Anord- ausrichtung angeordneten, abgeschlossenen und mit
nung zur Aufrechterhaltung der Isolierflüssigkeit des 40 dem flüssigen Dielektrikum gefüllten Isolierstöffgefäß
die Potentialdifferenz zwischen auf Hochspannungs- untergebracht ist, noch näher erläutert,
potential liegenden Schalterteilen und Erde auf- In Fig. 1 ist das am geerdeten TransformatordeckelDeviating from the familiar, an arrangement is arranged, closed and with voltage to maintain the insulating liquid of the insulating material vessel filled with the liquid dielectric, the potential difference between the high-voltage being accommodated, explained in more detail.
potential lying switch parts and earth on- In Fig. 1 this is on the earthed transformer cover
nehmenden flüssigen Dielektrikums vorgeschlagen, bei 10 befestigte, den ungekapselten Lastumschalter 11 der erfindungsgemäß eine solche Abschirmung der aufnehmende-Isölierstoffgefäß mit 12 "bezeichnet. Das potentialführenden Teüe .vorgesehen ist, daß die 45 Ölgebiet 13 in der Umgebung der metallischen Teile Schaltgase ohne Schwächung der Isolationsfestigkeit bzw. Kanten 14 des Lastumschälters ist bekanntlich des_ Dielektrikums von Hochspannung nach Erde ab- durch hohe Spannungsgradiehten beansprucht. Sobald strömen. ^ Gasblasen in die Nähe der Kanten 14 gelangen, wer-Proposed taking liquid dielectric, fixed at 10, the unencapsulated diverter switch 11 which according to the invention designates such a shielding of the receiving insulating material vessel with 12 ″ potential-leading Teüe. It is provided that the 45 oil area 13 in the vicinity of the metallic parts Switching gases without weakening the insulation strength or edges 14 of the diverter switch is known des_ dielectric is stressed from high voltage to earth by high voltage levels. As soon stream. ^ Gas bubbles come close to the edges 14,
Durch eine derartige Abschirmungsanordnung wird den diese dielektrisch schwachen Gasblasen durcherreicht, daß man auf eine besondere Kapselung z.B. 50 schlagen und als Folge davon die gesamte ölstrecke des Lastumschalters, die unter Umständen erhebliche bis zum Kesseldeckel 10, oder es erfolgt ein Uber-Schwiengkeiten bereiten kannn, da der Lastumschäl- ^chlag längs der Innenwand des Isolierzylinders 12Such a shielding arrangement reaches the dielectrically weak gas bubbles, that you hit a special encapsulation, e.g. 50, and as a result the entire oil route of the diverter switch, which may be considerable up to the boiler cover 10, or there is an over-Schwiengkeiten can prepare, since the load shifting stroke along the inner wall of the insulating cylinder 12
ter gegenüber dem die Potentialdifferenz auf weisenden nach Erde/Durch geeignete Ausbildung der Abschirm-ter compared to the one showing the potential difference to earth / through suitable design of the shielding
Dielektrikum allseitig und wirkungsvoll abgeschlos- elektroden, beispielsweise in Form von konzentrischenDielectric is effectively sealed on all sides, for example in the form of concentric electrodes
009 547/296009 547/296
Isolierdrahtringen 15 mit verschiedenen Ringdurchmessern, und einer solchen Anordnung der an. das Lastumschalterpotential angelenkten Runddrahtringe zweckmäßigervveise sowohl innerhalb als -auch außerhalb des Isolierstoffgefäßes derart, daß ihre Drahtachsen etwa in der eingezeichneten Fläche 16 liegen, wird im Gebiet 17, wo keine derartigen Drähte vorgesehen sind, ein nahezu gleichmäßiges Feld erreicht. Die Abschirmelektroden sind symmetrisch zur Längsachse des Gehäuses angeordnet und besitzen mindestens einen selchen Krümmungsradius, daß für die Schaltgase ein Ausströmkanal mit ausreichendem Querschnitt entsteht, der etwa durch eine besondere Begrenzung gebildet werden kann. Besonders günstig im Hinblick auf die Verhinderung des Hochsteigens der Gasblasen in inhomogenen Feldgebieten erweist sich die ablenkende Wirkung der Abschirmanordnung auf die Gasblasen bei Betriebsfrequenz insofern, als diese beim Durchströmen der Abschirmanordnung in radialer Richtung, bezogen auf die Runddrähte, ab- ao gelenkt werden.Insulating wire rings 15 with different ring diameters, and such an arrangement of the. the Round wire rings linked to the diverter switch potential expediently both inside and outside of the insulating material vessel in such a way that its wire axes lie approximately in the area 16 shown, an almost uniform field is achieved in area 17, where no such wires are provided. The shielding electrodes are arranged symmetrically to the longitudinal axis of the housing and have at least Such a radius of curvature that an outflow channel with sufficient for the switching gases Cross-section arises, which can be formed, for example, by a special limitation. Very cheap in terms of preventing the gas bubbles from rising in inhomogeneous field areas the distracting effect of the shielding arrangement on the gas bubbles at operating frequency insofar as this when flowing through the shielding arrangement in the radial direction, based on the round wires, ab ao be steered.
Die Gasblasen können durch eine Öffnung im Deckel 18 nach oben abströmen.The gas bubbles can flow upwards through an opening in the cover 18.
Gegebenenfalls kann sich auch als zweckmäßig erweisen, die Schaltgase durch zusätzliche Mittel so· zu as führen, daß sie in einem solchen Bereich nach oben strömen, in dem das elektrische Feld zwischen Lastumschalter und Erde größte Homogenität aufweist, also möglichst weitgehend linearisiert ist. Herrscht nämlich ein homogenes Feld E vor Anwesenheit der Gasblasen, so ergibt sich bei Eindringen einer kugelförmigen Gasblase im Raum außerhalb der Gasblase eine Störung des homogenen Feldes, innerhalb dagegen ein genau berechenbares homogenes Feld der StärkeIf necessary, it can also prove to be expedient to use additional means to guide the switching gases so that they flow upward in such an area in which the electrical field between the diverter switch and earth has the greatest homogeneity, i.e. is linearized as much as possible. If a homogeneous field E prevails before the gas bubbles are present, then if a spherical gas bubble penetrates in the space outside the gas bubble, there is a disturbance of the homogeneous field, while inside a precisely calculable homogeneous field of strength
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL26704A DE1083892B (en) | 1957-01-28 | 1957-01-28 | Arrangement for maintaining the insulating strength of the liquid dielectric which absorbs the potential difference between switching devices at high voltage potential and earth, especially for load switches in transformers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL26704A DE1083892B (en) | 1957-01-28 | 1957-01-28 | Arrangement for maintaining the insulating strength of the liquid dielectric which absorbs the potential difference between switching devices at high voltage potential and earth, especially for load switches in transformers |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1083892B true DE1083892B (en) | 1960-06-23 |
Family
ID=7263895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL26704A Pending DE1083892B (en) | 1957-01-28 | 1957-01-28 | Arrangement for maintaining the insulating strength of the liquid dielectric which absorbs the potential difference between switching devices at high voltage potential and earth, especially for load switches in transformers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1083892B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH115197A (en) * | 1925-07-27 | 1926-06-01 | Oerlikon Maschf | Oil switch. |
AT162819B (en) * | 1946-11-25 | 1949-04-11 | Elin Ag Elek Ind Wien | Step control device for transformers |
DE895196C (en) * | 1938-12-15 | 1953-11-02 | Aeg | Step switch for switching the taps of regulating transformers under load |
DE950140C (en) * | 1940-02-07 | 1956-10-04 | Aeg | Housing for load switches arranged on lead-throughs of tapping transformers under OEl |
-
1957
- 1957-01-28 DE DEL26704A patent/DE1083892B/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH115197A (en) * | 1925-07-27 | 1926-06-01 | Oerlikon Maschf | Oil switch. |
DE895196C (en) * | 1938-12-15 | 1953-11-02 | Aeg | Step switch for switching the taps of regulating transformers under load |
DE950140C (en) * | 1940-02-07 | 1956-10-04 | Aeg | Housing for load switches arranged on lead-throughs of tapping transformers under OEl |
AT162819B (en) * | 1946-11-25 | 1949-04-11 | Elin Ag Elek Ind Wien | Step control device for transformers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2215928B2 (en) | Voltage measuring device for a fully insulated, metal-enclosed high-voltage switchgear | |
DE3240724A1 (en) | TRANSFORMER ARRANGEMENT | |
DE2355481A1 (en) | ELECTRIC HIGH VOLTAGE DEVICE WITH DISC-SHAPED INSULATING BODY | |
DE2356988C3 (en) | Cast resin-insulated transducers, in particular voltage converters | |
WO2013110548A1 (en) | Shielding device for an electrically conductive connecting element | |
CH409041A (en) | High voltage bushing | |
DE102011086663A1 (en) | Compressed-gas-insulated electric power transmission device has externally stabilized and self-stabilized compensation elements that are arranged between sections to compensate movement of sections relative to one another along path | |
DE1083892B (en) | Arrangement for maintaining the insulating strength of the liquid dielectric which absorbs the potential difference between switching devices at high voltage potential and earth, especially for load switches in transformers | |
DE678296C (en) | Combined current and voltage converter | |
DE394787C (en) | Bushing insulator based on the capacitor principle for high-voltage equipment | |
DE886936C (en) | High voltage switch | |
DE910806C (en) | High voltage conductor for high voltage transformers or the like. | |
DE1282170B (en) | Removable bushing for high voltage transformers | |
DE3238250A1 (en) | Transformer for thyristor turn-on pulses | |
DE827668C (en) | High voltage oil clamp for electrical devices | |
DE2912844A1 (en) | LIGHTNING PROTECTION DEVICE | |
DE645179C (en) | High-voltage switch box with lower connection contacts | |
DE2720689C2 (en) | Single wire bushing current transformer | |
AT118549B (en) | Structure arrangement for transformers, especially current or voltage converters with staggered induction systems. | |
DE925962C (en) | Monitoring device for the oil level of devices on high voltage potential, especially load switches | |
DE695259C (en) | High-voltage transducer, in particular a current wall cord without insulating separating joints, is provided | |
DE878983C (en) | Isolation transformer for high voltages | |
DE928776C (en) | Feed-through insulator for high-voltage devices, especially voltage converters, housed in an insulating fluid | |
DE416091C (en) | Expansion vessel for high-voltage oil transformers whose oil boxes are filled with oil up to the cover | |
DE1254239B (en) | Combined current and voltage converter |