DE842363C - High-voltage terminal box for electrical machines - Google Patents

High-voltage terminal box for electrical machines

Info

Publication number
DE842363C
DE842363C DES2320A DES0002320A DE842363C DE 842363 C DE842363 C DE 842363C DE S2320 A DES2320 A DE S2320A DE S0002320 A DES0002320 A DE S0002320A DE 842363 C DE842363 C DE 842363C
Authority
DE
Germany
Prior art keywords
terminal box
electrical machines
voltage terminal
box according
weak points
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
DES2320A
Other languages
German (de)
Inventor
Alfred Koepplinger
Herbert Dr Weissheimer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES2320A priority Critical patent/DE842363C/en
Application granted granted Critical
Publication of DE842363C publication Critical patent/DE842363C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/14—Fastening of cover or lid to box

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

Die Erfindung bezieht sich auf Hochspannungsklemmenkästen für elektrische Maschinen. Es ist schon vorgekommen, daß in solchen Klemmenkästen das Zusammenwirken verschiedener nachteiliger Umstände, wie schadhafte Isolation, Bildung von Kondenswasser, Überspannungen usw. zu Kurzschlüssen führt und der entstehende Lichtbogen eine schnelle starke Erwärmung und Ausdehnung der Luft und damit eine Explosion hervorruft. Infolge der starken Erwärmung kann unter Umständen auch die Isolation der Kabel Gase bilden, die explosive Eigenschaften haben, insbesondere, wenn es sich um Kunststoffisolation handelt. Bei dem Explosionsdruck fliegt der normalerweise nicht druckfest ausgeführte Klemmenkasten auseinander, wodurch die Umgebung in hohem Maße gefährdet wird.The invention relates to high voltage terminal boxes for electrical Machinery. It has already happened that in such terminal boxes the interaction various adverse circumstances, such as defective insulation, formation of condensation, Overvoltages, etc. lead to short circuits and the resulting arc a rapid one strong heating and expansion of the air, causing an explosion. As a result The strong warming can also cause the insulation of the cables to form gases, which have explosive properties, especially when it comes to plastic insulation acts. At the explosion pressure, the one that is normally not pressure-resistant flies Terminal box apart, which endangers the environment to a high degree.

Durch die Erfindung werden diese Mängel beseitigt. Erfindungsgemäß besitzt der Klemmenkastendeckel über einen Teil der Länge und/oder Breite sich erstreckende nahtförmige Stellen mit geringer mechanischer Festigkeit. Vorzugsweise sollen diese mechanisch schwachen Stellen längs gerader Linien in Kreuzform verlaufen. Sie könne durch mittels Weichlötung verschlossene Schlitze oder auch durch Sicken gebildet sein, deren Wandstärken an den Enden des Sickenbogens etwa ein oder mehrere Zehntel Millimeter betragen.The invention overcomes these deficiencies. According to the invention the terminal box cover has a part of the length and / or width extending seam-like areas with low mechanical strength. Preferably these should mechanically weak points run along straight lines in a cross shape. You can formed by slots closed by means of soft soldering or by beads be whose wall thickness at the ends of the bead is about one or more tenths Be millimeters.

Die Erfindung soll an Hand des in den Fig. i bis 3 dargestellten Ausführungsbeispiels näher erläutert werden.The invention is based on the embodiment shown in FIGS are explained in more detail.

Fig. i zeigt einen Klemmenkastendeckel in Ansicht, Fig. 2 in Seitenansicht und Fig. 3 einen Schnitt in vergrößertem Maßstab. Der Klemmenkastendeckel nach den Fig. i und 2 besteht im wesentlichen aus dem Flansch i, den Seitenwänden 2 und der Stirnwand 3. In die Stirnwand 3 sind kreuzweise auf etwa die ganze Breite und einen großen Teil der I Länge des Deckels sich erstreckende Sicken 4 eingedrückt. Die Sicken werden mittels eines Stempels erzeugt, der nur um einige Zehntel Millimeter schwächer ist als die Matrize. Dadurch wird die Wandstärke des Deckels an den beiden Enden 5 des Sickenbogens 6 nur einige Zehntel Millimeter stark und somit an diesen Stellen erheblich geschwächt. Die Schwächung der Deckelwand kann auch dadurch erreicht werden, daß an Stelle der Sicken Schlitze in die Wand eingesägt werden, die durch Weichlötung wieder verschlossen werden. Der Klemmenkasten gemäß der Erfindung kann bei einer im Innern stattfindenden Explosion nicht mehr auseinanderfliegen, sondern nur aufplatzen, wodurch die Betriebssicherheit erheblich erhöht ist.Fig. I shows a terminal box cover in view, Fig. 2 in side view and FIG. 3 shows a section on an enlarged scale. The terminal box cover according to the Fig. I and 2 consists essentially of the flange i, the side walls 2 and the End wall 3. In the end wall 3 are crossed over approximately the entire width and one large part of the length of the lid extending beads 4 pressed. the Corrugations are created by means of a stamp that is only a few tenths of a millimeter is weaker than the die. This will adjust the wall thickness of the lid on the two Ends 5 of the bead 6 only a few tenths of a millimeter thick and thus on these Places considerably weakened. The weakening of the cover wall can also be achieved in this way be that in place of the beads slots are cut into the wall through Soft soldering can be closed again. The terminal box according to the invention can no longer fly apart in the event of an explosion occurring inside, but only burst open, which significantly increases operational reliability.

Claims (4)

PATENTANSPRÜCHE: i. Hochspannungsklemmenkasten für elektrische Maschinen, dadurch gekennzeichnet, daß der Klemmenkastendeckel über einen Teil der Länge und/oder Breite seiner Stirnfläche sich erstreckende nahtförmige Stellen mit geringer mechanischer Festigkeit besitzt. PATENT CLAIMS: i. High-voltage terminal box for electrical machines, characterized in that the terminal box cover over part of the length and / or Width of its end face extending seam-like points with little mechanical Has strength. 2. Klemmenkasten nach Anspruch i, dadurch gekennzeichnet, daß die mechanisch schwachen Stellen längs gerader Linien in Kreuzform verlaufen. 2. Terminal box according to claim i, characterized in that the mechanically weak points run along straight lines in a cross shape. 3. Klemmenkasten nach Anspruch i und 2, dadurch gekennzeichnet, daß die mechanisch schwachen Stellen durch Weichlötung verschlossene Schlitze sind. 3. Terminal box according to Claims 1 and 2, characterized in that the mechanical weak points are slits closed by soft soldering. 4. Klemmenkasten nach Anspruch i und 2, dadurch gekennzeichnet, daß die mechanisch schwachen Stellen durch Sicken gebildet sind und die Wandstärke des Deckels an den Enden des Sickenbogens ein oder mehrere Zehntel Millimeter beträgt.4. Terminal box according to claim i and 2, characterized in that the mechanically weak points are formed by beads and the wall thickness of the cover at the ends of the bead arch is one or more tenths of a millimeter.
DES2320A 1950-03-19 1950-03-19 High-voltage terminal box for electrical machines Expired DE842363C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES2320A DE842363C (en) 1950-03-19 1950-03-19 High-voltage terminal box for electrical machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES2320A DE842363C (en) 1950-03-19 1950-03-19 High-voltage terminal box for electrical machines

Publications (1)

Publication Number Publication Date
DE842363C true DE842363C (en) 1952-06-26

Family

ID=7469561

Family Applications (1)

Application Number Title Priority Date Filing Date
DES2320A Expired DE842363C (en) 1950-03-19 1950-03-19 High-voltage terminal box for electrical machines

Country Status (1)

Country Link
DE (1) DE842363C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234290B (en) * 1966-02-25 1967-02-16 Siemens Ag Box with weak points
DE2937074A1 (en) * 1979-09-11 1981-03-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Junction box protected against internal explosion - has weaker area construction with cover supported by channelling at inner circumference from sweated rim seam
DE102014114911A1 (en) 2014-10-14 2016-04-14 Vem Sachsenwerk Gmbh Terminal box with increased short circuit resistance for electrical machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234290B (en) * 1966-02-25 1967-02-16 Siemens Ag Box with weak points
DE2937074A1 (en) * 1979-09-11 1981-03-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Junction box protected against internal explosion - has weaker area construction with cover supported by channelling at inner circumference from sweated rim seam
DE102014114911A1 (en) 2014-10-14 2016-04-14 Vem Sachsenwerk Gmbh Terminal box with increased short circuit resistance for electrical machines
WO2016059477A2 (en) 2014-10-14 2016-04-21 Vem Sachsenwerk Gmbh Terminal box having an increased short-circuit current rating, for electrical machines
DE102014114911B4 (en) 2014-10-14 2019-07-18 Vem Sachsenwerk Gmbh A high voltage machine having a terminal box and assembly disposed thereon and disposed on a high voltage machine

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