WO1998047206A1 - Spannungswandler - Google Patents
Spannungswandler Download PDFInfo
- Publication number
- WO1998047206A1 WO1998047206A1 PCT/EP1998/001466 EP9801466W WO9847206A1 WO 1998047206 A1 WO1998047206 A1 WO 1998047206A1 EP 9801466 W EP9801466 W EP 9801466W WO 9847206 A1 WO9847206 A1 WO 9847206A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact
- voltage converter
- voltage
- spring
- metal body
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
Definitions
- the invention relates to a voltage converter for medium-voltage systems, in particular switchgear, with a converter housing and a plug contact for establishing an electrical connection between the voltage converter and the medium-voltage system.
- Such voltage converters with plug contacts are known.
- Known plug contacts which are designed as lamellar contacts, have stable, radially elastically flexible lamellae which are arranged essentially parallel to an axis and are intended for insertion into a metal sleeve serving as a mating contact.
- These known plug contacts are suitable for the transmission of several hundred amperes, but have the disadvantage that they are complex and expensive to manufacture.
- voltage transformers only carry very small currents of much less than 1 A, so that a lamella contact is oversized for this application.
- the object of the invention is to provide a voltage converter with an easy to manufacture plug connection.
- the plug contact is designed as a spring pressure contact.
- the spring pressure contact is not for
- the spring pressure contact can be made much simpler than a conventional slat contact.
- the spring pressure contact has an essentially cylindrical metal body intended for insertion into an opening in the medium-voltage system, at the end of which one
- Contact spring is attached, which projects axially beyond the metal body and is electrically connected to a conductor via the metal body.
- a simple embodiment of the invention provides that the contact spring is designed as a helical spring. Such commercially available coil springs are particularly easy to obtain.
- the electrical conductor is designed as a screw with which the contact spring is fastened, further costs can be saved since the component serving as an electrical conductor simultaneously serves to fasten the helical spring and neither procures nor assembles a separate part for the fastener must become. Due to their shape, the screw and the coil spring fit together for the fastening purpose without further measures.
- the invention can be further improved and simplified in terms of manufacturing costs in that the metal body is fastened to the conductor leading into the interior of the converter housing by means of the screw serving as an electrical conductor and is thus connected to the voltage converter.
- the screw takes on an additional one Fastening function without the need for another component.
- the contact spring is screwed into a thread provided in the metal body.
- a separate part for the attachment of the contact spring does not have to be procured or assembled.
- the metal body is arranged on an essentially conical projection fastened to the converter housing, which protrudes laterally beyond the converter housing.
- the converter housing is metal-encapsulated and the projection consists of an electrically insulating material.
- the metal encapsulation shields the electrical parts of the voltage converter from external electromagnetic interference, while the material of the projection improves the security against undesired flashovers.
- the invention also relates to a medium-voltage system, in particular a switchgear system, which is provided with a voltage converter designed according to the invention.
- Such a medium-voltage system can be further improved in terms of its simple structure and manufacturing costs in that a counter-contact of the medium-voltage system intended for electrical connection to the spring pressure contact of the voltage converter is designed as a simple cylindrical bore.
- This measure can the expensive contact cylinder (metal sleeve) otherwise required as a counter contact for a lamella contact can advantageously be saved.
- Such a contact cylinder must namely be specially adapted to the contact lamellae inserted into it.
- FIG. 1 shows a voltage converter according to the invention in a partially sectioned side view, in a first embodiment
- Figure 2 shows an enlarged section of Figure 1 with a spring pressure contact according to the invention
- Figure 3 is an enlarged, partially sectioned partial view of a spring pressure contact according to the invention in another embodiment.
- the voltage converter shown has a converter housing 1 made of metal, in which electrical components which are not further described are accommodated.
- the metal-encapsulated medium-voltage converter described here as an exemplary embodiment is suitable for voltages up to 52 kV and is intended for a switchgear (not shown).
- the voltage converter 1 is plugged into the switchgear without any special assembly effort.
- a plug-in contact is provided for connection, which is designed as a spring pressure contact 2 according to the invention.
- Such a spring pressure contact 2 is only suitable for the transmission of small electrical currents. However, this is not a disadvantage for the intended use, since voltage converters only carry very small currents (“1 A).
- the spring pressure contact 2 has an essentially cylindrical metal body 3 for insertion into an opening (not shown) of the medium-voltage system, on which a contact spring 5 is fastened in an electrically conductive manner.
- the contact spring 5 is designed as a helical spring.
- An electrical conductor 4 is designed as a screw, by which the coil spring 5 is held on the metal body 3. It is automatically in electrical contact with the electrical conductor 4.
- the contact spring 5 is screwed as a helical spring into a thread 8 provided for this purpose in the metal body 3.
- the converter housing 1 is provided with a projection 6 which is attached to the side of the converter housing 1 and projects beyond it.
- the projection 6, which is made of an electrically non-conductive material, carries the spring pressure contact 2.
- the projection ⁇ is provided at its end facing the spring pressure contact 2 with a recess 7 into which the metal body 3 is inserted.
- the projection 6 is conically shaped.
- the Metallk body 3 is connected to the converter inner part via a cylindrical conductor 8.
- the metal body 3 with the contact spring 5 is inserted axially into an opening (not shown) of the medium-voltage system until the contact spring 5 touches the associated mating contact and is elastically tensioned.
- the elastic force creates a secure electrical contact.
- the counter contact can advantageously be designed as a simple sheet.
- the above-mentioned opening of the medium-voltage system is closed electrically securely by a noble joint pressing, so that no moisture or dirt can penetrate.
- the opening should expediently have a correspondingly adapted inner cone.
- the axial end position of the plug connection is also fixed, so that the contact spring 5 and the metal body 3 and the mating contact of the medium-voltage system are protected against potentially destructive impacts that could occur if the plug contact 2 is inserted carelessly.
Landscapes
- Breakers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98919096A EP0976176A1 (de) | 1997-04-16 | 1998-03-13 | Spannungswandler |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997115825 DE19715825A1 (de) | 1997-04-16 | 1997-04-16 | Spannungswandler |
DE19715825.0 | 1997-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998047206A1 true WO1998047206A1 (de) | 1998-10-22 |
Family
ID=7826653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/001466 WO1998047206A1 (de) | 1997-04-16 | 1998-03-13 | Spannungswandler |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0976176A1 (de) |
DE (1) | DE19715825A1 (de) |
WO (1) | WO1998047206A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19936985B4 (de) * | 1999-07-30 | 2008-09-18 | Siemens Ag | Elektrische Anschlußeinrichtungen für metallgekapselte gasisolierte Schaltanlagenbehälter |
CN102087916A (zh) * | 2010-03-16 | 2011-06-08 | 上海天灵开关厂有限公司 | 一种气体绝缘开关柜用全绝缘的插拔式电压互感器 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2305039A1 (fr) * | 1975-03-18 | 1976-10-15 | Sev Marchal | Procede de fixation d'un cable dans un embout et cosse de bougie d'allumage utilisant ledit procede |
DE4445082C1 (de) * | 1994-12-08 | 1996-05-09 | Ritz Messwandler Kg | Hochspannungs-Steckkontakt |
-
1997
- 1997-04-16 DE DE1997115825 patent/DE19715825A1/de not_active Withdrawn
-
1998
- 1998-03-13 WO PCT/EP1998/001466 patent/WO1998047206A1/de not_active Application Discontinuation
- 1998-03-13 EP EP98919096A patent/EP0976176A1/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2305039A1 (fr) * | 1975-03-18 | 1976-10-15 | Sev Marchal | Procede de fixation d'un cable dans un embout et cosse de bougie d'allumage utilisant ledit procede |
DE4445082C1 (de) * | 1994-12-08 | 1996-05-09 | Ritz Messwandler Kg | Hochspannungs-Steckkontakt |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19936985B4 (de) * | 1999-07-30 | 2008-09-18 | Siemens Ag | Elektrische Anschlußeinrichtungen für metallgekapselte gasisolierte Schaltanlagenbehälter |
CN102087916A (zh) * | 2010-03-16 | 2011-06-08 | 上海天灵开关厂有限公司 | 一种气体绝缘开关柜用全绝缘的插拔式电压互感器 |
Also Published As
Publication number | Publication date |
---|---|
DE19715825A1 (de) | 1998-10-22 |
EP0976176A1 (de) | 2000-02-02 |
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