EP0856862A1 - Capot pare effluves - Google Patents
Capot pare effluves Download PDFInfo
- Publication number
- EP0856862A1 EP0856862A1 EP98400182A EP98400182A EP0856862A1 EP 0856862 A1 EP0856862 A1 EP 0856862A1 EP 98400182 A EP98400182 A EP 98400182A EP 98400182 A EP98400182 A EP 98400182A EP 0856862 A1 EP0856862 A1 EP 0856862A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conductor
- membrane
- annular edge
- fuse
- cover according
- 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.)
- Granted
Links
Images
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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/38—Plug-and-socket contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/202—Bases for supporting the fuse; Separate parts thereof for fuses with ferrule type end contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/48—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
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H2085/0225—Means for preventing discharge, e.g. corona ring
Definitions
- the invention relates to a corona hood for apparatus and high and medium voltage equipment.
- Such a corona hood is used in particular in armored substations high and medium voltage.
- the tendency is to use fuses housed in well.
- the well is metallized insulator or insulator included in a grounded metal enclosure. Due to the presence of gradients important electrical at the ends of the fuse (at the edge of the cap metal of the fuse in particular) and it is known to protect the ends of the fuse by corona shields.
- the object of the invention is to provide a scent hood for protect a live conductor in a grounded enclosure, such as than a shielded fuse or link bar from a shielded substation. who presents the characteristic of automatically adapting to the diameter of this conductor thus avoiding changing the scent cover when changing driver type.
- the invention relates to a scent hood to protect a live conductor, comprising a hollow rigid body forming a kind cap intended to come to cap one end of the conductor to be protected, this hollow body having an annular edge surrounding the outer surface at a distance of the conductor and the space between this annular edge and the outer surface of the conductor being closed by a connecting means having a certain curvature in a longitudinal axial plane of the conductor, characterized in that this connection means consists of a deformable membrane elastically which is fixed on the annular edge of the hollow body, and in that the deformation of this membrane is limited by a counter piece fixed on the edge annular of the hollow rigid body, this counterpart being shaped to guarantee that the radius of curvature of the membrane between the annular edge of the rigid body hollow and the outer surface of the conductor in said longitudinal axial plane of the driver is always above a certain value.
- Figure 1 shows schematically and in part, a fuse well equipped with a first embodiment of a corona hood according to the invention, this cover protecting the end of a large diameter fuse.
- Figure 2 shows schematically the scent hood of Figure 1 protecting a smaller diameter fuse.
- FIG. 3 schematically shows an example of embodiment of a membrane for a corona hood according to the invention.
- Figure 4 shows schematically and in part, a fuse well equipped with a second embodiment of a corona hood according to the invention protecting a large diameter fuse.
- Figure 5 shows schematically the scent hood of Figure 4 protecting a smaller diameter fuse.
- FIG. 6 schematically shows the first embodiment of the corona hood according to the invention protecting an armored connecting bar.
- FIG. 7 schematically shows the second embodiment of the corona hood according to the invention protecting an armored connecting bar.
- the corona hood according to the invention comprises a hollow metallic rigid body 1 intended to cap one end of a live conductor, for example a fuse, a shielded busbar an HTB or HTA shielded substation, or any other type of conductor placed under voltage in a grounded enclosure.
- a live conductor for example a fuse, a shielded busbar an HTB or HTA shielded substation, or any other type of conductor placed under voltage in a grounded enclosure.
- This rigid hollow body forms a sort of cap (here, a cap in shape of a half sphere) in which the end of fuse 3 is housed.
- annular edge of the body 1 remotely surrounds the cylindrical outer surface of the end of the fuse. There therefore remains a certain space left free between the edge of the body 1 and the cylindrical outer surface of the fuse 3. This space free is closed by an elastically deformable membrane 4 so that the corona hood according to the invention automatically adapts to the diameter of the fuse it must protect.
- Figures 1 and 4 show in axial section the corona hood protecting a fuse of a certain diameter and Figures 2 and 5 show in axial section the corona hood protecting a smaller diameter fuse.
- This membrane 4 is fixed to the annular edge of the hollow body 1 and has a certain curvature in any longitudinal passing plane by the longitudinal axis 3A of the fuse.
- the deformation of the membrane 4 is limited by a fixed counter piece 5 on the annular edge of the hollow rigid body 1 and on which the membrane when it bends towards the bottom of the hollow body 1.
- This against part 5 is shaped to ensure that the radius of curvature of the membrane 4 between the annular edge of the hollow rigid body 1 and the outer surface of the end of the fuse in a longitudinal axial plane of fuse 3 is always greater than one minimum value r.
- Counter piece 5 therefore has a radius of curvature of value r-e or e is the thickness of the deformable membrane.
- the membrane 4 deforms in such a way so that the radius of connection from the edge of the cover 1 to the fuse 3 is large when the diameter of the fuse is small, and it is smaller but always greater than this value r (specified by calculation or test and such that the value of electric field exerted on the fuse remains below the field value electric disruptive of the isolation gas when the diameter of the fuse is larger tall.
- This membrane 5 can be a thin metal sheet and preformed with star cutouts allowing its radial deformation as illustrated on the Figure 3 and Figures 1 and 2.
- the membrane can also be a kind of elastomer torus conductor, semiconductor or insulator with high electrical permittivity allowing to control an electric field, as illustrated in Figures 4 and 5.
- the corona hood with its sheet metal membrane is mounted to protect a set of busbars 6 placed in a metal enclosure 7 grounded.
- the scent hood to protect the busbar 6 has an elastomer membrane.
Landscapes
- Fuses (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Glass Compositions (AREA)
- Cable Accessories (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Insulating Bodies (AREA)
Abstract
Description
Claims (5)
- Un capot pare effluves pour protéger un conducteur (3) sous tension, comprenant un corps rigide creux (1) formant une sorte de calotte destinée à venir coiffer une extrémité du conducteur à protéger, ce corps creux ayant un bord annulaire entourant à distance la surface extérieure du conducteur et l'espace entre ce bord annulaire et la surface extérieure du conducteur étant fermé par un moyen de raccordement présentant une certaine courbure dans un plan axial longitudinal du conducteur, caractérisé en ce que ce moyen de raccordement est constitué par une membrane (4) déformable élastiquement qui est fixée sur le bord annulaire du corps creux, et en ce que la déformation de cette membrane est limitée par une contre pièce (5) fixée sur la bord annulaire du corps rigide creux, cette contre pièce étant conformée pour garantir que le rayon de courbure de la membrane entre le bord annulaire du corps rigide creux et la surface extérieure du conducteur dans ledit plan axial longitudinal du conducteur est toujours supérieur à une certaine valeur (r).
- Le capot selon la revendication 1, dans lequel la membrane (4) est une tôle métallique fine et préformée avec des découpes en étoile.
- Le capot selon la revendication 1, dans lequel la membrane (4) est une sorte de tore en élastomère conducteur, semi-conducteur ou à haute permittivité diélectrique.
- Le capot selon l'une des revendications 1 à 3, dans lequel le conducteur est un fusible.
- Le capot selon l'une des revendications 1 à 4, dans lequel le conducteur est une barre de liaison blindée.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9700997A FR2758916B1 (fr) | 1997-01-30 | 1997-01-30 | Capot pare effluves |
FR9700997 | 1997-01-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0856862A1 true EP0856862A1 (fr) | 1998-08-05 |
EP0856862B1 EP0856862B1 (fr) | 2004-03-31 |
Family
ID=9503120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98400182A Expired - Lifetime EP0856862B1 (fr) | 1997-01-30 | 1998-01-29 | Capot pare effluves |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0856862B1 (fr) |
AT (1) | ATE263424T1 (fr) |
DE (1) | DE69822688T2 (fr) |
ES (1) | ES2217513T3 (fr) |
FR (1) | FR2758916B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6909588B2 (en) | 1999-08-06 | 2005-06-21 | Applied Materials, Inc. | Substrate holder for retaining a substrate within a processing chamber |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922890C (de) * | 1952-01-27 | 1955-01-27 | Siemens Ag | Loesbare, insbesondere steckbare Verbindung von Hochspannungsleitern mit vorgeschobenen Elektroden |
US3686603A (en) * | 1969-04-30 | 1972-08-22 | Westinghouse Electric Corp | Electrical connector |
EP0040781A1 (fr) * | 1980-05-23 | 1981-12-02 | ALSTHOM-ATLANTIQUE Société anonyme dite: | Sectionneur de poste blindé à haute tension |
DE3211119A1 (de) * | 1982-03-26 | 1983-10-06 | Pfisterer Elektrotech Karl | Vorrichtung zur herstellung einer elektrisch leitenden verbindung zwischen einer isolierten rohrsammelschiene und isolierten kabeln eines mittelspannungs- oder hochspannungsenergieversorgungssytems |
EP0205397A1 (fr) * | 1985-06-14 | 1986-12-17 | Siemens Aktiengesellschaft | Sectionneur pour une installation interrupteur haute tension blindée et isolée au gaz comprimé |
DE3936420A1 (de) * | 1989-11-02 | 1991-05-08 | Reinhausen Maschf Scheubeck | Kontaktanordnung mit abschirmung fuer stufenschalter von stufentransformatoren |
EP0700062A1 (fr) * | 1994-09-05 | 1996-03-06 | Asea Brown Boveri Ab | Interrupteur pour haute tension |
-
1997
- 1997-01-30 FR FR9700997A patent/FR2758916B1/fr not_active Expired - Fee Related
-
1998
- 1998-01-29 AT AT98400182T patent/ATE263424T1/de not_active IP Right Cessation
- 1998-01-29 DE DE69822688T patent/DE69822688T2/de not_active Expired - Fee Related
- 1998-01-29 ES ES98400182T patent/ES2217513T3/es not_active Expired - Lifetime
- 1998-01-29 EP EP98400182A patent/EP0856862B1/fr not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922890C (de) * | 1952-01-27 | 1955-01-27 | Siemens Ag | Loesbare, insbesondere steckbare Verbindung von Hochspannungsleitern mit vorgeschobenen Elektroden |
US3686603A (en) * | 1969-04-30 | 1972-08-22 | Westinghouse Electric Corp | Electrical connector |
EP0040781A1 (fr) * | 1980-05-23 | 1981-12-02 | ALSTHOM-ATLANTIQUE Société anonyme dite: | Sectionneur de poste blindé à haute tension |
DE3211119A1 (de) * | 1982-03-26 | 1983-10-06 | Pfisterer Elektrotech Karl | Vorrichtung zur herstellung einer elektrisch leitenden verbindung zwischen einer isolierten rohrsammelschiene und isolierten kabeln eines mittelspannungs- oder hochspannungsenergieversorgungssytems |
EP0205397A1 (fr) * | 1985-06-14 | 1986-12-17 | Siemens Aktiengesellschaft | Sectionneur pour une installation interrupteur haute tension blindée et isolée au gaz comprimé |
DE3936420A1 (de) * | 1989-11-02 | 1991-05-08 | Reinhausen Maschf Scheubeck | Kontaktanordnung mit abschirmung fuer stufenschalter von stufentransformatoren |
EP0700062A1 (fr) * | 1994-09-05 | 1996-03-06 | Asea Brown Boveri Ab | Interrupteur pour haute tension |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6909588B2 (en) | 1999-08-06 | 2005-06-21 | Applied Materials, Inc. | Substrate holder for retaining a substrate within a processing chamber |
US7372690B2 (en) | 1999-08-06 | 2008-05-13 | Applied Materials, Inc. | Substrate holder which is self-adjusting for substrate deformation |
Also Published As
Publication number | Publication date |
---|---|
DE69822688T2 (de) | 2005-03-24 |
ATE263424T1 (de) | 2004-04-15 |
FR2758916A1 (fr) | 1998-07-31 |
ES2217513T3 (es) | 2004-11-01 |
EP0856862B1 (fr) | 2004-03-31 |
FR2758916B1 (fr) | 1999-04-02 |
DE69822688D1 (de) | 2004-05-06 |
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