DE454018C - Contact device for the automatic disconnection of transformers, reactors and similar electrical devices with insulating fluid, in particular oil, which is activated directly or indirectly in the event of overloads and body or internal short circuits by the gas bubbles developing - Google Patents
Contact device for the automatic disconnection of transformers, reactors and similar electrical devices with insulating fluid, in particular oil, which is activated directly or indirectly in the event of overloads and body or internal short circuits by the gas bubbles developingInfo
- Publication number
- DE454018C DE454018C DEB108439D DEB0108439D DE454018C DE 454018 C DE454018 C DE 454018C DE B108439 D DEB108439 D DE B108439D DE B0108439 D DEB0108439 D DE B0108439D DE 454018 C DE454018 C DE 454018C
- Authority
- DE
- Germany
- Prior art keywords
- event
- overloads
- contact device
- transformers
- indirectly
- 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
- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/55—Oil reservoirs or tanks; Lowering means therefor
- H01H33/555—Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Description
Transformatoren, Drosselspulen und .ähnliche elektrische Apparate mit Flüssigkeitsisolierung erleiden bekanntlich beim Undichtwerden der Gefäße dadurch Schaden, daß durch die Senkung des Ölspiegels Windungen und andere stromführende Teile aus dem kühlenden Isoliermittel heraustreten und infolgedessen stark erhitzt werden. Außerdem ist jeder Transformator beim Auftreten von ίο Überschlagen im Falle von Überlastungen und Windungs- oder Körperschluß der Gefahr umfangreicher Zerstörungen ausgesetzt.Transformers, reactors and the like It is known that electrical apparatus with liquid insulation suffer when leaking The vessels are damaged by the fact that, by lowering the oil level, windings and other current-carrying parts are removed from the cooling isolating agent emerge and as a result are strongly heated. aside from that is every transformer in the event of ίο flashover in the event of overloads and Winding or short-circuiting to the body exposed to the risk of extensive destruction.
Die Erfindung bezieht sich auf eine Einrichtung, die elektrische Apparate der vorgenannten Art in beiden Fällen gegen Beschädigungen schützt. Sie besteht darin, daß eine in dem Transformatorgehäuse oder einem damit in Verbindung stehenden Nebengefäß angeordnete, die Auslösevorrichtung beeinfLussende Kontaktvorrichtung, die unmittelbar oder mittelbar durch die bei Überlastungen oder Überschlagen sich entwickelnden Zersetzungsgase oder Dämpfe zum Ansprechen gebracht wird, mit einem in seiner Lage vom Ölstand abhängigen Schwimmer zusammengebaut ist, der bei übermäßigem Fallen des Ölspiegels im Sinne der Abschaltung Kontaktschluß herbeiführt.The invention relates to a device, the electrical apparatus of the aforementioned Art protects against damage in both cases. It consists in the fact that a arranged in the transformer housing or a connected secondary vessel, the triggering device influencing the contact device that directly or indirectly through the decomposition gases that develop in the event of overloads or flashovers or vapors are made to respond, assembled with a float whose position depends on the oil level is the contact closure in the event of an excessive drop in the oil level in the sense of switching off the contact brings about.
In der Zeichnung ist die Erfindung in vier Ausfuhrungsbeispielen veranschaulicht.In the drawing, the invention is illustrated in four exemplary embodiments.
In der Abb. ι bedeutet α ein mit dem Hauptgefäß in Verbindung stehendes Rohr, in das eine Scheidewand δ eingebaut ist. In dem Punkte ist eine Scheiben? mit angesetztem Arme drehbar gelagert. Beim Auftreten bzw. Aufsteigen von Gas- oder Zersetzungsblasen im Falle von Überlastungen und Windungs- oder Körperschluß wird die als Kontakt ausgebildete Scheibe^ nach oben bewegt.In Fig. Ι, α means a pipe that is connected to the main vessel and into which a partition δ is built. Is there a disc at that point? rotatably mounted with attached arms. When gas or decomposition bubbles occur or rise in the event of overloads and winding or body shorts, the disk formed as a contact ^ is moved upwards.
Das an dem Drehpunkte angeordnete Gewicht/ sorgt für die Fortsetzung der Bewegung, bis die Scheibed den Kontakt g berührt und hierdurch den Stromkreis für die Betätigung der Abschält- oder einer Signalvorrichtung schließt.The weight / arranged at the pivot point ensures the continuation of the movement until the disk d touches the contact g and thereby closes the circuit for actuating the switch-off device or a signaling device.
Dieselbe Kontaktvorrichtung tritt auch in Tätigkeit, wenn sich der mit dem Arme verbundene Schwimmer h, der, solange er sich unter Öl befindet, durch seinen Auftrieb am Anschlag i anliegt, bei unter der Höhe des Schwimmkörpers absinkendem Ölspiegel sich abwärts bewegt. Durch die Abwärtsbewegung des Schwimmers h dreht sich die Scheibed so lange um den Punkte, bis sie den Gegenkontakt g berührt.The same contact device also comes into operation when the swimmer h, which is connected to the arm and which, as long as it is under oil, rests against the stop i due to its buoyancy, moves downwards when the oil level drops below the level of the float. The downward movement of the float h causes the disk d to rotate around the point until it touches the mating contact g.
Zwei weitere Ausführungsmöglichkeiten zeigen die Abb. 2 und 3.Two further design options are shown in Figs. 2 and 3.
Hier ist die Kontaktplatte k mit einem Schwimmer/ versehen. Bei der ersten Ausführungsform (Abb. 2) sind zwei Kontakte vorhanden. Der obere tritt bei Gasentwicklung, der untere beim Abfallen des Ölspiegels unter .eine gewisse Höhe in Tätigkeit. Die Feder m hält die Platte k in gewöhnlichem Betriebszustand zwischen den beiden Kontakten in der Schwebe.Here the contact plate k is provided with a float /. In the first embodiment (Fig. 2) there are two contacts. The upper one is activated when gas is generated, the lower one when the oil level drops below a certain level. In the normal operating state, the spring m keeps the plate k suspended between the two contacts.
Die zweite Ausführungsform (Abb. 3) weist nur einen Kontakt auf, der, wie aus der Zeichnung ohne weiteres hervorgeht, in beiden Störungsfällen anspricht.The second embodiment (Fig. 3) has only one contact, which, as from the Drawing can be seen without further ado, responds in both malfunctions.
In Abb. 4 ist schließlich die Erfindung an einem Beispiele für einen Transformator ohne Ausgleichsgefäß veranschaulicht. Der kleine Schwimmer ti mit dem Kontaktblech ο schließt den Stromkreis bei Erschütterung der Oberfläche durch aufsteigende Blasen, der große Schwimmerp schließt den Stromkreis beim Abfallen des Ölspiegels unter die zulässige Grenze.Finally, FIG. 4 illustrates the invention using an example of a transformer without an equalizing tank. The small float ti with the contact plate ο closes the circuit when the surface is vibrated by rising bubbles, the large float p closes the circuit when the oil level drops below the permissible limit.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB108439D DE454018C (en) | Contact device for the automatic disconnection of transformers, reactors and similar electrical devices with insulating fluid, in particular oil, which is activated directly or indirectly in the event of overloads and body or internal short circuits by the gas bubbles developing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB108439D DE454018C (en) | Contact device for the automatic disconnection of transformers, reactors and similar electrical devices with insulating fluid, in particular oil, which is activated directly or indirectly in the event of overloads and body or internal short circuits by the gas bubbles developing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE454018C true DE454018C (en) | 1927-12-27 |
Family
ID=6992183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB108439D Expired DE454018C (en) | Contact device for the automatic disconnection of transformers, reactors and similar electrical devices with insulating fluid, in particular oil, which is activated directly or indirectly in the event of overloads and body or internal short circuits by the gas bubbles developing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE454018C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE766253C (en) * | 1938-09-13 | 1952-05-15 | Siemens Schuckertwerke A G | OElschuetz |
DE1270169B (en) * | 1964-11-26 | 1968-06-12 | Rayonnoe Energetitscheskoje Up | Gas protection relay for oil transformers |
-
0
- DE DEB108439D patent/DE454018C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE766253C (en) * | 1938-09-13 | 1952-05-15 | Siemens Schuckertwerke A G | OElschuetz |
DE1270169B (en) * | 1964-11-26 | 1968-06-12 | Rayonnoe Energetitscheskoje Up | Gas protection relay for oil transformers |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2724357B1 (en) | Buchholz relay | |
DE454018C (en) | Contact device for the automatic disconnection of transformers, reactors and similar electrical devices with insulating fluid, in particular oil, which is activated directly or indirectly in the event of overloads and body or internal short circuits by the gas bubbles developing | |
DE1052501B (en) | Arrangement for electrical pressure gas switches | |
DE1997370U (en) | FLOAT CONTROLLED SWITCH FOR LIQUID LEVEL INDICATOR. | |
DE706376C (en) | Protective device for liquid-insulated electrical equipment, such as transformers, switches, etc. | |
DE686381C (en) | Protective device for electrical equipment filled with a liquid isolating agent | |
DE657360C (en) | Protection device for oil-filled electrical equipment | |
DE760404C (en) | Protective device for closed containers of electrical equipment, especially transformers | |
DE751067C (en) | Device for monitoring high-voltage systems | |
DE415199C (en) | Device for protecting transformers or choke coils with insulating fluid, in particular OEl, in the event of overloads and winding or body shortings | |
DE760881C (en) | Protective device for electrical machines and devices filled with a liquid insulating agent | |
DE386629C (en) | Device for the automatic disconnection of transformers or choke coils with insulating fluid, in particular OEl, in the event of overloads and winding or body faults | |
DE936102C (en) | Device for maintaining the oil level in the load switch vessels of step transformers | |
AT154695B (en) | Protective device for oil-filled electrical apparatus. | |
DE511186C (en) | Alarm device for light liquid separator | |
DE723561C (en) | Device for the protection of liquid-insulated electrical apparatus | |
DE693812C (en) | Switch disconnectors | |
DE721647C (en) | Float switch for oil-filled electrical devices | |
CH101708A (en) | Safety device for electrical apparatus operating in an insulating liquid. | |
AT154699B (en) | Protective device for oil-filled electrical equipment that responds to oil flow and gas development. | |
DE636222C (en) | Multiple series switch for series connection of the charged capacitors of a surge generator | |
DE501622C (en) | Mercury vapor rectifier with floating ignition anode | |
DE575960C (en) | For actuating a protective or monitoring device serving electrical switch, which is arranged inside a pivotably mounted float | |
DE893541C (en) | Switching device for controlling current pulses, especially for electric fences | |
DE719871C (en) | Electrode arrangement for electric cooking devices or similar. with steam and electrode space |