DE19722348C2 - Electrical machine in high temperature version - Google Patents
Electrical machine in high temperature versionInfo
- Publication number
- DE19722348C2 DE19722348C2 DE1997122348 DE19722348A DE19722348C2 DE 19722348 C2 DE19722348 C2 DE 19722348C2 DE 1997122348 DE1997122348 DE 1997122348 DE 19722348 A DE19722348 A DE 19722348A DE 19722348 C2 DE19722348 C2 DE 19722348C2
- Authority
- DE
- Germany
- Prior art keywords
- high temperature
- temperature
- resistant
- electrical machine
- mica
- 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 - Fee Related
Links
- 239000010445 mica Substances 0.000 claims description 10
- 229910052618 mica group Inorganic materials 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims 2
- 238000005470 impregnation Methods 0.000 claims 1
- 239000004922 lacquer Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/30—Windings characterised by the insulating material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
Die Erfindung betrifft rotierende elektrische Maschinen in Hochtemperaturausführung, die in Normalbetrieb eine Wicklungstemperatur von 220°C haben und eine Lebensdauer bei dieser Temperatur von über 20000 Stunden gewährleisten und bei einer Umgebungstemperatur von 400°C mindestens 3 Stunden betrieben werden können.The invention relates to rotating electrical machines in high temperature design, the in normal operation have a winding temperature of 220 ° C and a service life at guarantee this temperature of over 20,000 hours and at a Ambient temperature of 400 ° C can be operated for at least 3 hours.
Die internationale Norm für rotierende elektrische Maschinen IEC 34 -1 begrenzt die ausgeführten Wärmeklassen nach oben auf die Wärmeklasse H, der einen maximale Temperatur von 180°C entspricht. Auf Grund der üblicherweise eingesetzten Isolierstoffe, Lager und Schmierstoffe ist ein Dauerbetrieb oberhalb dieser Temperatur dann nicht möglich und es bleiben thermische Überbeanspruchungen von der Zeit und der Höhe her begrenzt. Diese Temperaturen werden mit Lackdrahtisolierungen und Kaptonmaterialien erreicht.The international standard for rotating electrical machines IEC 34-1 limits the executed heat classes up to heat class H, which is a maximum Temperature of 180 ° C corresponds. Because of the insulation materials commonly used, Bearings and lubricants are then not in continuous operation above this temperature possible and there remain thermal overloads in terms of time and height limited. These temperatures are with enamelled wire insulation and Kapton materials reached.
Aus der DE 23 42 070 C3 ist eine elektrische Maschine in Hochtemperaturausführung bekannt bei der in halboffene Nuten eines Blechpaketes eine Nutauskleidung aus einem glimmerhaltigen hochtemperaturfesten Flächenisolierstoff angeordnet ist. In die Nut ist eine Träufelwicklung aus Wickeldraht, der mit Glasfasergarn umsponnen ist, unter zusätzlicher Anordnung einer beigelegten PE-Folie eingelegt. Diese elektrische Maschine wird anschließen mit einer besonderen Tränkmasse bestehend aus Füllstoffen und Silikonharz getränkt und ausgehärtet. Solcherart Ausführungen von hochtemperaturfesten elektrischen Maschinen sind sehr kostenintensiv.From DE 23 42 070 C3 is an electrical machine in a high temperature version known in which a groove lining from a in half-open grooves of a laminated core mica-containing high-temperature-resistant surface insulating material is arranged. There is one in the groove Drip winding made of winding wire, which is wound with glass fiber yarn, with additional Arrangement of an enclosed PE film inserted. This electrical machine will connect with a special impregnating compound consisting of fillers and silicone resin soaked and cured. Such designs of high temperature resistant electrical Machines are very expensive.
Der Erfindung liegt die Aufgabe zugrunde, eine rotierende elektrische Maschine zu schaffen, deren thermische Überbeanspruchung zeitlich wesentlich vergrößert werden kann und/oder die bei wesentlich höheren Übertemperaturen als herkömmliche elektrische Maschinen betreibbar ist. The invention has for its object to a rotating electrical machine create, whose thermal overload can be significantly increased in time and / or at much higher overtemperature than conventional electrical Machines can be operated.
Erfindungsgemäß wird die Aufgabe durch den Patentanspruch gelöst.According to the invention the object is achieved by the patent claim.
Überraschenderweise wurde gefunden, das an sich bekannte technische Merkmale aus dem Bereich elektrischer Niederspannungsmaschinen unter Verwendung von Bauteilen elektrischer Niederspannungs-Asynchronmaschinen in der erfindungsgemäßen Kombination auch für elektrischer Maschinen, deren thermische Überbeanspruchung gegenüber dem bisherigen Stand der Technik zeitlich verlängert und/oder höhere Werte ohne Zerstörung der elektrischen Maschine erreichen kann, einsetzbar sind.Surprisingly, it was found that the technical features known per se from the Field of low voltage electrical machines using components low-voltage electrical asynchronous machines in the invention Combination also for electrical machines, whose thermal overload compared to the previous state of the art, extended in time and / or higher values can be achieved without destroying the electrical machine.
Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden. In den Magnetkörper einer Niederspannungs-Asynchronmaschine mit halboffenen Nuten ist eine Runddraht-Träufelwicklung mit Zweischicht-Lackdraht, umbandelt mit 30% überlappten, hochtemperaturfesten Feinglimmerband mit Glasseidengewebeträger, eingelegt. Die halboffenen Nuten sind mit einer Nutauskleidung aus glimmerhaltigen hochtemperaturfesten Flächenisolierstoff ausgekleidet. Die Schaltenden sind wie die Runddraht-Träufelwicklung mit dem gleichen hochtemperaturfesten Feinglimmerband mit Glasseidengewebeträger mehrfach überlappt umbandelt. Als Phasenisolierung ist ein gleichartiger hochtemperaturfester Flächenisolierstoff auf Glimmerbasis, wie der als Nutauskleidung verwendete, angeordnet. Als Lager für die erfindungsgemäße elektrische Maschine in Hochtemperaturausführung sind thermisch stabilisierte Lager mit Stahlkäfig in der Lagerluftgruppe C4 eingesetzt. Dies ist erforderlich, um die Wärmewirkungen bei längerer thermischer Überlastung über einen langen Zeitraum zu kompensieren. Die Lagerschmierung wird mit Hilfe eines hochtemperaturfesten Fettes, welches Temperaturen bis 400°C ohne Verlust der Schmierwirkung ermöglicht, realisiert. Als Klemmenbrett wird ein Porzellan-Klemmenbrett verwendet, wobei die Ableitungen aus Kupferlitze mit einem hochtemperaturfesten Feinglimmerband mit Glasseidengewebeträger 50% überlappt umbandelt ausgeführt sind. Die gesamte Maschine ist mit einem hochtemperaturfesten Silikonharz imprägniert.The invention will be explained in more detail below using an exemplary embodiment. In the magnetic body of a low-voltage asynchronous machine with half-open grooves a round wire trickle winding with two-layer enamelled wire, banded with 30% overlapped, high-temperature-resistant fine mica tape with fiberglass fabric backing, inserted. The semi-open grooves have a groove lining made of mica high temperature resistant surface insulation lined. The switchers are like that Round wire trickle winding with the same high temperature resistant mica tape Glass fiber fabric carrier banded several times overlapped. As phase insulation is a Similar high-temperature-resistant surface insulating material based on mica, such as the Groove lining used, arranged. As a bearing for the electrical according to the invention High-temperature machines are thermally stabilized bearings with a steel cage in the internal clearance group C4. This is necessary to reduce the heat effects compensate for longer thermal overloads over a long period of time. The Bearing lubrication is carried out with the help of a high-temperature-resistant grease, which has temperatures up to 400 ° C without losing the lubricating effect. As a terminal board a porcelain clipboard is used, the leads made of copper braid with a high-temperature-resistant fine mica tape with a 50% overlap of fiberglass fabric banded are executed. The entire machine is with a high temperature resistant Impregnated silicone resin.
Bei einer erfindungsgemäßen Ausführung dieser elektrischen Maschine kann diese bei einer Umgebungstemperatur von 400°C 3 Stunden lang betrieben werden.In an embodiment of this electrical machine according to the invention, it can be used in a Ambient temperature of 400 ° C for 3 hours.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997122348 DE19722348C2 (en) | 1997-04-15 | 1997-04-15 | Electrical machine in high temperature version |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997122348 DE19722348C2 (en) | 1997-04-15 | 1997-04-15 | Electrical machine in high temperature version |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19722348A1 DE19722348A1 (en) | 1998-10-29 |
| DE19722348C2 true DE19722348C2 (en) | 2002-05-29 |
Family
ID=7830752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1997122348 Expired - Fee Related DE19722348C2 (en) | 1997-04-15 | 1997-04-15 | Electrical machine in high temperature version |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19722348C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10329678A1 (en) * | 2003-07-01 | 2005-02-03 | Siemens Ag | Electric motor for driving a vehicle, in particular rail drives, and a drive with such an electric motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2459653A (en) * | 1945-09-08 | 1949-01-18 | Westinghouse Electric Corp | Insulated conductor |
| DE1166308B (en) * | 1959-11-18 | 1964-03-26 | Westinghouse Electric Corp | Electrical tape insulation, in particular for insulating the windings of electrical machines |
| DE2342070C3 (en) * | 1973-08-20 | 1982-02-04 | Loher Gmbh Elektromotorenwerke, 8399 Ruhstorf | Process for the production of a winding insulation for an electrical machine that is suitable for permanent temperature loads above 250 C |
| GB2122426A (en) * | 1982-06-18 | 1984-01-11 | Tokyo Shibaura Electric Co | Insulation insert assembly and method for manufacturing the same |
-
1997
- 1997-04-15 DE DE1997122348 patent/DE19722348C2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2459653A (en) * | 1945-09-08 | 1949-01-18 | Westinghouse Electric Corp | Insulated conductor |
| DE1166308B (en) * | 1959-11-18 | 1964-03-26 | Westinghouse Electric Corp | Electrical tape insulation, in particular for insulating the windings of electrical machines |
| DE2342070C3 (en) * | 1973-08-20 | 1982-02-04 | Loher Gmbh Elektromotorenwerke, 8399 Ruhstorf | Process for the production of a winding insulation for an electrical machine that is suitable for permanent temperature loads above 250 C |
| GB2122426A (en) * | 1982-06-18 | 1984-01-11 | Tokyo Shibaura Electric Co | Insulation insert assembly and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19722348A1 (en) | 1998-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |