EP1170766B1 - Bielle de manoeuvre pour disjoncteur haute tension - Google Patents
Bielle de manoeuvre pour disjoncteur haute tension Download PDFInfo
- Publication number
- EP1170766B1 EP1170766B1 EP01401459A EP01401459A EP1170766B1 EP 1170766 B1 EP1170766 B1 EP 1170766B1 EP 01401459 A EP01401459 A EP 01401459A EP 01401459 A EP01401459 A EP 01401459A EP 1170766 B1 EP1170766 B1 EP 1170766B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dielectric gas
- switchgear
- circuit breaker
- drive rod
- pressure
- 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 - Lifetime
Links
Images
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
- H01H33/42—Driving mechanisms
-
- 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
- H01H33/42—Driving mechanisms
- H01H2033/426—Details concerning the connection of the isolating driving rod to a metallic part
Definitions
- the invention relates to high voltage circuit breakers or other devices. electric cut-off with dielectric gas insulation, and more particularly the operating rod of the movable contact of a circuit breaker power plant which is interposed between the movable contact and the circuit breaker control.
- the operating rod of a movable contact of high voltage circuit breaker generally includes a full or hollow cylindrical section in electrically insulating material, for example glass fiber reinforced with resin, and two metal frames fixed respectively to the ends of the insulating section and which are intended one to be connected to the movable contact of the circuit breaker and the other to be connected to the control mechanism.
- the metal frame of the connecting rod which is intended to be connected to the moving contact of the circuit breaker is generally designed in shape deflector to protect the insulating section of the connecting rod from electric arcs which are created between the two contacts of the circuit breaker during opening operations.
- This deflector also serves to protect the insulating section from hot gases which are evacuated behind the movable contact.
- the section rod insulator undergoes very significant thermal attack (burns) may cause an unacceptable decrease in its dielectric strength.
- Such a connecting rod is for example described in the document US-A-4,883,930.
- the object of the invention is to provide another form of protection for a such an insulating rod simple to implement and which does not have the disadvantages noted above.
- the invention relates to an operating rod for an apparatus high voltage electric cut-off insulated with a dielectric gas, comprising a section of electrically insulating material and two reinforcements of metal fixed respectively to the ends of the section, characterized in that that a heat shield made of electrically insulating material is placed between the metal reinforcements and surrounds the insulating section from a distance to define with the latter an annular free space intended to be filled with dielectric gas.
- the shield can be made of PTFE, ceramic or other material insulating and resistant to attack by an electric arc.
- a central circuit breaker conventionally comprises in a casing 1 of electrically insulating material filled with a dielectric insulating gas such as SF 6 , at a pressure of a few bars, a fixed contact 2 and a movable contact 3 with a nozzle 4 for blowing gases to extinguish electric arcs.
- the movable contact 3 is moved in the axial direction A by a control mechanism 5 by means of an operating rod 6 having one end A connected to the rear of the movable contact 3 and one end B connected to the control mechanism 5.
- the operating rod 6 comprises a section 7 of electrically insulating solid or hollow and generally cylindrical material, at the ends of which are fixed on the one hand a first metal frame 8 forming a deflector and constituting the end A of the rod and on the other hand a second metal frame 9 constituting the end B of the connecting rod.
- a heat shield 10, here of tubular shape, is disposed between the reinforcements 8 and 9 and surrounds the insulating section 7 at a distance, leaving an annular free space 11 with it.
- the shield 10 can be made of PTFE, ceramic or other electrically insulating material resistant to the electric arc.
- the shield 10 is held in position around the insulating section 7 by fitting into the metal frame 8 or by any other fixing means and by a flange 12 attached for example to the end B of the connecting rod.
- the shield 10 thermally protects the section 7 thanks to the thickness of unheated SF 6 filling the space 11 between the shield and the section.
- the annular space defined between the shield 10 and the section 7 can be open and filled with dielectric gas isolating the circuit breaker.
- this annular space can be completely closed hermetically to gas and filled with circuit breaker insulation gas or other dielectric gas, such as nitrogen, at the same or different pressure than the pressure of the dielectric gas circuit breaker insulation.
- Dielectric gas pressure in space annular less than the pressure of the dielectric gas isolating the circuit breaker increases the thermal protection of section 7 of the connecting rod maneuver.
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Electronic Switches (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Actuator (AREA)
Description
Claims (5)
- Une bielle de manoeuvre (6) pour appareil de coupure électrique haute tension à isolation avec un gaz diélectrique, comprenant un tronçon (7) en matière électriquement isolante et deux armatures métalliques (8,9) fixées respectivement aux extrémités du tronçon, caractérisée en ce qu'un bouclier thermique (10) en matière électriquement isolante est disposé entre les armatures (8,9) et entoure à distance le tronçon isolant (7) pour définir avec celui-ci un espace libre annulaire (11).
- La bielle de manoeuvre selon la revendication 1, dans laquelle le bouclier thermique (10) est en PTFE ou en céramique.
- La bielle de manoeuvre selon la revendication 1 ou 2, dans laquelle l'espace libre annulaire (11) est un espace complètement fermé.
- Un appareil de coupure haute tension à isolation avec un gaz diélectrique à une pression de quelques bars, comprenant un contact mobile (3) relié à une bielle de manoeuvre (6) selon l'une des revendications 1 à 2, dans lequel l'espace libre annulaire (11) est rempli dudit gaz diélectrique d'isolation de l'appareil de coupure.
- Un appareil de coupure haute tension à isolation avec un gaz diélectrique à une pression de quelques bars, comprenant un contact mobile (3) relié à une bielle de manoeuvre (6) selon la revendication 3, dans lequel l'espace libre annulaire (11) complètement fermé est rempli d'un gaz diélectrique à une pression différente de celle dudit gaz diélectrique d'isolation de l'appareil de coupure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0008618 | 2000-07-03 | ||
FR0008618A FR2811137B1 (fr) | 2000-07-03 | 2000-07-03 | Bielle de manoeuvre pour disjoncteur haute tension |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1170766A1 EP1170766A1 (fr) | 2002-01-09 |
EP1170766B1 true EP1170766B1 (fr) | 2004-08-18 |
Family
ID=8852040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01401459A Expired - Lifetime EP1170766B1 (fr) | 2000-07-03 | 2001-06-06 | Bielle de manoeuvre pour disjoncteur haute tension |
Country Status (7)
Country | Link |
---|---|
US (1) | US6583375B2 (fr) |
EP (1) | EP1170766B1 (fr) |
JP (1) | JP4786825B2 (fr) |
AT (1) | ATE274232T1 (fr) |
CA (1) | CA2351784A1 (fr) |
DE (1) | DE60104946T2 (fr) |
FR (1) | FR2811137B1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0225088D0 (en) * | 2002-10-29 | 2002-12-04 | Univ Liverpool | circuit breaker |
CA2566961A1 (fr) * | 2004-05-20 | 2005-12-08 | Coopervision, Inc. | Onlays corneens et correction d'aberrations avant afin d'ameliorer la vision |
KR101071098B1 (ko) * | 2010-01-26 | 2011-10-10 | 엘에스산전 주식회사 | 가스절연 차단기 |
FR2985081B1 (fr) * | 2011-12-21 | 2015-03-06 | Alstom Technology Ltd | Dispositif de protection contre les particules engendrees par un arc electrique de commutation |
EP3285276B1 (fr) | 2016-08-19 | 2021-09-29 | General Electric Technology GmbH | Tige d'entraînement et procédé de fabrication d'une tige d'entraînement |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1690121A1 (de) * | 1967-12-22 | 1971-04-15 | Sachsenwerk Licht & Kraft Ag | Hochspannungsleistungsschalter |
US4215255A (en) * | 1978-01-05 | 1980-07-29 | Electric Power Research Institute, Inc. | Vacuum arc switching device with internal shielding |
JPS60162340U (ja) * | 1984-04-05 | 1985-10-28 | 株式会社富士電機総合研究所 | 密閉容器内接触子の絶縁操作ロツド |
US4780581A (en) * | 1987-10-30 | 1988-10-25 | Rte Corporation | Suicide switch/interrupter with variable volume chamber and puffer action |
US4883930A (en) * | 1987-10-30 | 1989-11-28 | Cooper Power Systems, Inc. | Switch mechanism operating rod |
FR2650699B1 (fr) * | 1989-08-07 | 1995-10-20 | Alsthom Gec | |
JPH06203705A (ja) * | 1993-01-06 | 1994-07-22 | Toshiba Corp | パッファ形ガス遮断器 |
-
2000
- 2000-07-03 FR FR0008618A patent/FR2811137B1/fr not_active Expired - Fee Related
-
2001
- 2001-06-06 DE DE60104946T patent/DE60104946T2/de not_active Expired - Lifetime
- 2001-06-06 EP EP01401459A patent/EP1170766B1/fr not_active Expired - Lifetime
- 2001-06-06 AT AT01401459T patent/ATE274232T1/de not_active IP Right Cessation
- 2001-06-15 US US09/880,872 patent/US6583375B2/en not_active Expired - Lifetime
- 2001-06-28 CA CA002351784A patent/CA2351784A1/fr not_active Abandoned
- 2001-07-02 JP JP2001200690A patent/JP4786825B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20020003128A1 (en) | 2002-01-10 |
JP4786825B2 (ja) | 2011-10-05 |
FR2811137B1 (fr) | 2002-08-23 |
US6583375B2 (en) | 2003-06-24 |
JP2002075140A (ja) | 2002-03-15 |
FR2811137A1 (fr) | 2002-01-04 |
DE60104946T2 (de) | 2005-08-18 |
ATE274232T1 (de) | 2004-09-15 |
EP1170766A1 (fr) | 2002-01-09 |
DE60104946D1 (de) | 2004-09-23 |
CA2351784A1 (fr) | 2002-01-03 |
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