EP1223595A1 - Sectionneur à haute tension à isolation dans l'air - Google Patents
Sectionneur à haute tension à isolation dans l'air Download PDFInfo
- Publication number
- EP1223595A1 EP1223595A1 EP01403038A EP01403038A EP1223595A1 EP 1223595 A1 EP1223595 A1 EP 1223595A1 EP 01403038 A EP01403038 A EP 01403038A EP 01403038 A EP01403038 A EP 01403038A EP 1223595 A1 EP1223595 A1 EP 1223595A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- angle
- fingers
- disconnector
- arm
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 230000005520 electrodynamics Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
- H01H2031/286—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact wherein the contact is rotatable around its own longitudinal axis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Definitions
- the present invention relates to a high voltage disconnector with air insulation.
- a disconnector notably includes an arm, often called a blade, pivoting around a horizontal axis and electrically connected to one of its ends to a first connector disposed at the top of a first insulating column; the other end of the arm, the free end, has a contact part, called hammer, which cooperates, in the closed position of the disconnector, with a jaw connected to a second connector disposed at the top of a second insulating column.
- the jaw consists of two parallel rows facing each other, contact parts each formed from a curved copper strip and attached to a jaw support.
- the hammer which extends the arm to its end is a piece of bronze, heavy and expensive whose section by a plane perpendicular to the axis of the arm corresponds to a smaller circle diameter than that of the arm and which flattens over a diameter extending to reach the diameter of the arm, the thickness of these two extensions diametral being 2 to 3 mm with rounded edges.
- the present invention proposes to improve certain aspects of a disconnector of this type and relates to a high voltage disconnector with air insulation comprising a pivoting arm capable of pivoting at one of its ends, around a horizontal axis perpendicular to the axis ⁇ of the arm and also able to rotate around its own axis ⁇ , the free end of the arm carrying a contact piece called cooperating hammer, in position closed disconnector, with a jaw comprising a support jaw to which are fixed two rows facing each other with contact, characterized in that said hammer is fitted with pads contact cooperating with the contact fingers, each contact pad forming a corner, of angle ⁇ , which, when the disconnector closes, meets the corresponding row of fingers with an angle of attack ⁇ , said angle of attack ⁇ being less than 90 °.
- the angle ⁇ is of the order of 30 to 40 ° and the angle ⁇ is of the order of 60 °.
- each contact pad has a curved contact face extending over an angle ⁇ , seen from the axis ⁇ of the arm, this angle ⁇ being of the order of 17 °.
- the angle ⁇ seen from the axis ⁇ arm, between this point of contact and the plane perpendicular to the finger contact passing through the axis ⁇ , is of the order of 10 °.
- said contact fingers are fixed to the jaw support so that, in the closed position of the disconnector, the angle E between the axis ⁇ of the arm and the contact fingers is greater than 90 °.
- said fingers facing each other make between them an angle ⁇ between 2 and 6 °.
- said contact fingers are tubular and open at both ends.
- a locking stop is fixed to a contact finger at a level located above said hammer in position disconnector closed.
- Fig. 1 is a partial view, from the left of FIG. 2, a disconnector according to the invention.
- Fig. 2 is a sectional view along II-II of FIG. 1.
- Fig. 3 is a top view of FIG. 1.
- Fig. 4 is a perspective view showing the jaw of the switch.
- Fig. 5 shows the section of a contact finger of the jaw.
- Fig. 6 is a section on VI-VI of FIG. 5.
- Fig. 7 is a diagram illustrating the angle of attack of the hammer with the jaw contact fingers when rotating the hammer during the disconnector closing.
- Fig. 8 is a diagram illustrating the angular contact range at constant pressure of the jaw fingers against the hammer.
- a disconnector comprising a pivoting arm 1 of axis ⁇ able to pivot in a vertical plane around a horizontal axis perpendicular to ⁇ , not shown, located to the left of fig. 1.
- the unrepresented part of the arm, its control pivoting about said horizontal axis, as well as its control rotation about its axis ⁇ , as well as its support, are not part of the invention and could, for example, be in accordance with what is described in French Patent 2,674,985 with reference to FIG. 1.
- the arm 1 is tubular, as can be seen in fig. 2, and brings to its free end a contact piece called hammer 2.
- the hammer is composed of an aluminum support piece 3 on which were fixed two copper contact plates 4A and 4B. This lightens the hammer.
- contact pads 4A and 4B of a particular shape, specified further on, constitute the cooperating contact parts, in the closed position of the disconnector with two rows, facing each other, of contact fingers 5A and 5B of the disconnector jaw.
- a jaw support 6 which fingers 5A and 5B are fixed to a jaw support 6 by a welding 7.
- a stop 8 for limiting the penetration of arm 1 between fingers 5A and 5B of the jaw.
- a connector 9 is also fixed to the jaw support 6.
- a second connector, not shown, is electrically connected to the end not represented by arm 1, on the side of its articulation around a horizontal axis.
- the jaw is supported at the upper end of an insulator support which is not visible, fig. 1, that the fitting 10 at its end higher.
- the arm 1 When closing, the arm 1 begins by pivoting around its horizontal axis until entering the jaw, between fingers 5A and 5B making a swivel angle of about 92 °, then the arm 1 rotates around its axis ⁇ by 90 ° in the direction of arrow 15, fig. 7. It is while in the closed position, as shown in these figs. 1 to 3.
- arm 1 undergoes an effort F tending to extend the arm from the jaw.
- This electrodynamic effort becomes very important in the event of a short circuit between phase and earth or between two phases.
- the fingers 5A and 5B are fixed to the jaw support 6 so that the angle E between the axis ⁇ of the arm 1 in the closed position and the fingers 5A-5B is greater than 90 °.
- the force F is maximum when the fingers 5A-5B are perpendicular to the axis ⁇ of arm 1 and it decreases when this angle increases. Taking for example an angle E of 120 °, the force F is approximately 0.6 times that in the case where the angle E is 90 °.
- the angle E is approximately 120 ° and preferably between 100 and 140 °.
- fingers 5A and 5B are not parallel but form between them a slight angle ⁇ of a few degrees of the order of 2 to 6 °.
- the fingers 5A and 5B are welded to the jaw support 6 making an angle D of 88 °, which gives an angle of 4 ° between the fingers 5A and 5B.
- a stop of lock 11 is fixed to a contact finger 5B at a level above hammer 2 in the closed position of the disconnector.
- this stop 11 has no disadvantage since the opening begins with a 90 ° rotation of the hammer 2 in the direction of the arrow marked 12, fig. 2, before pivoting of the arm 1 around of a horizontal axis perpendicular to the plane of FIG. 1.
- the fingers 5A and 5B facing each other are fixed, as has been said, to the jaw support 6 by welding 7 with angles E and D and have a profile tubular open at both ends so as to induce an exchange thermal by convection in the tube.
- These fingers are made of aluminum and each equipped on the side facing the row opposite, with a blade copper contact 13A, 13B cooperating directly with the pads hammer copper contact 4A, 4B 2.
- a retaining rod, respectively 14A, 14B and 14C connects, in pairs, fingers 5A and 5B so as to limit their spacing. These retaining rods are located approximately mid-length of the contact fingers 5A, 5B.
- the fingers 5A, 5B flex, forming spring, between rods 14A, 14B and 14C and the upper end of the fingers, ensuring each finger self-positioning against the pads copper contact 4A and 4B of hammer 2, thus optimizing the contact line between the hammer and the fingers.
- the arm 1 undergoes an electrodynamic force of lateral displacement in the direction of F 1 or F 2 (fig. 2), depending on whether the short circuit takes place with a phase located to the right or left of the phase on which the disconnector currently described is located.
- This movement thanks to the spring effect of the fingers and the retaining rods 14A, 14B and 14C does not cause contact breakage between the contact parts 4A and 4B of the hammer and the contact blades 13A, 13B of the fingers .
- Fig. 5 shows the section of a finger, for example 5B, and FIG. 6 this same finger in section according to VI-VI of fig. 5.
- the pads which have a corner end 16 having an angle ⁇ meet fingers with an angle of attack ⁇ .
- This angle of attack ⁇ is less than 90 ° and preferably of the order of 60 °, and makes it possible to break the ice which may have forming on the contact blades 13A, 13B.
- the angle ⁇ of the corner 16 is by example of the order of 30 to 40 °.
- this contact occurs while the distance between the axis ⁇ of the corner point 16 is greater than the distance separating the axis ⁇ from fingers 13A, 13B so that from this moment and until the corner point 16 arrives at point 18, which corresponds to a rotation of one angle y of about 10 °; contact pads 4A, 4B repel fingers 5A, 5B acting as a spring, the contact pressure increasing up to this point. Then, the contact face 19 being curved, the contact pressure remains substantially constant over a range of rotation at an angle ⁇ , fig. 8 about 17 ° corresponding to the angle ⁇ covered by the contact surface 19 contact pads 4A, 4B seen from the ⁇ axis.
- This contact range at constant pressure on an angle ⁇ of approximately 17 ° makes it possible to overcome the angular deviations resulting from a deficient adjustment or a loss of precision caused by wear of components.
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Gas-Insulated Switchgears (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Organic Insulating Materials (AREA)
- Breakers (AREA)
- Push-Button Switches (AREA)
- Telephone Set Structure (AREA)
Abstract
Description
Claims (9)
- Sectionneur à haute tension à isolation dans l'air comprenant un bras pivotant (1) apte à pivoter à l'une de ses extrémités, autour d'un axe horizontal perpendiculaire à l'axe Δ du bras et apte également à tourner autour de son propre axe Δ, l'extrémité libre du bras portant une pièce de contact appelée marteau (2) coopérant, en position fermée du sectionneur, avec une mâchoire comportant un support de mâchoire (6) auquel sont fixées deux rangées se faisant face de doigts de contact (5A, 5B), caractérisé en ce que ledit marteau (2) est équipé de plaquettes de contact (4A, 4B) coopérant avec les doigts de contact (5A, 5B), chaque plaquette de contact (4A, 4B) formant un coin (16), d'angle β, qui, lors de la fermeture du sectionneur, rencontre la rangée de doigts correspondante avec un angle d'attaque α, ledit angle d'attaque α étant inférieur à 90°.
- Sectionneur selon la revendication 1, caractérisé en ce que l'angle β est de l'ordre de 30 à 40°.
- Sectionneur selon l'une des revendications 1 ou 2, caractérisé en ce que l'angle α est de l'ordre de 60°.
- Sectionneur selon l'une des revendications 1 à 3, caractérisé en ce que chaque plaquette de contact (4A, 4B) comporte une face de contact (19) courbe s'étendant sur un angle δ, vu de l'axe Δ du bras (1), cet angle δ étant de l'ordre de 17°.
- Sectionneur selon l'une des revendications 1 à 4, caractérisé en ce que, au moment où le coin (16) d'une plaquette de contact arrive au contact d'un dit doigt de contact, l'angle γ, vu de l'axe Δ du bras (1), entre ce point de contact et le plan perpendiculaire au doigt de contact passant par l'axe Δ, est de l'ordre de 10°.
- Sectionneur selon l'une des revendications 1 à 5, caractérisé en ce que lesdits doigts de contact (5A, 5B) sont fixés au support de mâchoire (6) de façon à ce que, en position fermée du sectionneur, l'angle E entre l'axe Δ du bras (1) et les doigts de contact soit supérieur à 90°.
- Sectionneur selon l'une des revendications 1 à 6, caractérisé en ce que lesdits doigts se faisant face font entre eux un angle compris entre 2 et 6°.
- Sectionneur selon l'une des revendications 1 à 7, caractérisé en ce que lesdits doigts de contact (5A, 5B) sont tubulaires et ouverts à leurs deux extrémités.
- Sectionneur selon l'une des revendications 1 à 8, caractérisé en ce qu'une butée de verrouillage (11) est fixée à un doigt de contact (5B) à un niveau situé au-dessus dudit marteau (2) en position fermée du sectionneur.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0100424A FR2819626B1 (fr) | 2001-01-12 | 2001-01-12 | Sectionneur a haute tension a isolation dans l'air |
FR0100424 | 2001-01-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1223595A1 true EP1223595A1 (fr) | 2002-07-17 |
EP1223595B1 EP1223595B1 (fr) | 2008-04-30 |
Family
ID=8858773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01403038A Expired - Lifetime EP1223595B1 (fr) | 2001-01-12 | 2001-11-27 | Sectionneur à haute tension à isolation dans l'air |
Country Status (10)
Country | Link |
---|---|
US (1) | US6605788B2 (fr) |
EP (1) | EP1223595B1 (fr) |
CN (1) | CN1261957C (fr) |
AT (1) | ATE393959T1 (fr) |
BR (1) | BR0200021A (fr) |
DE (1) | DE60133798T2 (fr) |
ES (1) | ES2305040T3 (fr) |
FR (1) | FR2819626B1 (fr) |
MX (1) | MXPA02000412A (fr) |
PT (1) | PT1223595E (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130328458A1 (en) * | 2010-03-10 | 2013-12-12 | GE Energy Power Coversion Technology Ltd. | Rotary switches |
DE102016214377B4 (de) * | 2016-08-03 | 2018-10-25 | Siemens Aktiengesellschaft | Kontaktarmanordnung für ein Hochspannungs-Schaltgerät und deren Verwendung |
WO2018032303A1 (fr) * | 2016-08-16 | 2018-02-22 | 朱伯秦 | Sectionneur haute tension à double lame |
WO2018032304A1 (fr) * | 2016-08-16 | 2018-02-22 | 朱伯秦 | Sectionneur haute tension à double lame |
WO2018032306A1 (fr) * | 2016-08-16 | 2018-02-22 | 朱伯秦 | Sectionneur haute tension à double lame |
US11158466B2 (en) * | 2018-05-10 | 2021-10-26 | Mitsubishi Electric Corporation | Switch |
EP3734630B1 (fr) * | 2019-04-30 | 2022-01-05 | General Electric Technology GmbH | Disjoncteur á vide universel pour sectionneurs á air |
CN112216547B (zh) * | 2020-10-27 | 2023-05-05 | 国网冀北电力有限公司检修分公司 | 一种防隔离开关提前翻转的限位复位装置和隔离开关 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388225A (en) * | 1966-09-29 | 1968-06-11 | Ite Circuit Breaker Ltd | Jaw for ice breaking switch |
US3544741A (en) * | 1969-01-09 | 1970-12-01 | Westinghouse Electric Corp | Electric switch having improved blade construction |
US3544742A (en) * | 1969-01-09 | 1970-12-01 | Westinghouse Electric Corp | Electric switch having improved blade construction |
FR2674985A1 (fr) * | 1991-04-08 | 1992-10-09 | Gec Alsthom Engergie Inc | Sectionneur a ouverture brusque. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622443A (en) * | 1984-07-12 | 1986-11-11 | Felten & Guilleaume Energietechnik Gmbh | Single-pole load disconnecting switch arrangement in a housing |
US5013876A (en) * | 1988-09-12 | 1991-05-07 | S&C Electric Company | Switch contacts with improved fault-closing capability |
GB2286725A (en) * | 1994-02-18 | 1995-08-23 | Brian Mckean | Sequential isolating circuit breaker |
FR2739971B1 (fr) * | 1995-10-13 | 1998-01-30 | Gec Alsthom T & D Sa | Mecanisme d'entrainement de contacts de signalisation d'un appareil electrique en particulier d'un sectionneur ou sectionneur de terre haute tension |
FR2770929B1 (fr) * | 1997-11-13 | 2000-01-28 | Alsthom Gec | Mecanisme d'entrainement a ressort pour un appareil de commutation, en particulier un disjoncteur |
-
2001
- 2001-01-12 FR FR0100424A patent/FR2819626B1/fr not_active Expired - Fee Related
- 2001-11-27 ES ES01403038T patent/ES2305040T3/es not_active Expired - Lifetime
- 2001-11-27 EP EP01403038A patent/EP1223595B1/fr not_active Expired - Lifetime
- 2001-11-27 AT AT01403038T patent/ATE393959T1/de not_active IP Right Cessation
- 2001-11-27 PT PT01403038T patent/PT1223595E/pt unknown
- 2001-11-27 DE DE60133798T patent/DE60133798T2/de not_active Expired - Lifetime
- 2001-11-28 US US09/994,680 patent/US6605788B2/en not_active Expired - Lifetime
- 2001-12-27 CN CN01143968.8A patent/CN1261957C/zh not_active Expired - Fee Related
-
2002
- 2002-01-09 BR BR0200021-0A patent/BR0200021A/pt not_active Application Discontinuation
- 2002-01-11 MX MXPA02000412A patent/MXPA02000412A/es active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388225A (en) * | 1966-09-29 | 1968-06-11 | Ite Circuit Breaker Ltd | Jaw for ice breaking switch |
US3544741A (en) * | 1969-01-09 | 1970-12-01 | Westinghouse Electric Corp | Electric switch having improved blade construction |
US3544742A (en) * | 1969-01-09 | 1970-12-01 | Westinghouse Electric Corp | Electric switch having improved blade construction |
FR2674985A1 (fr) * | 1991-04-08 | 1992-10-09 | Gec Alsthom Engergie Inc | Sectionneur a ouverture brusque. |
Also Published As
Publication number | Publication date |
---|---|
ATE393959T1 (de) | 2008-05-15 |
DE60133798D1 (de) | 2008-06-12 |
ES2305040T3 (es) | 2008-11-01 |
US20020092741A1 (en) | 2002-07-18 |
BR0200021A (pt) | 2002-10-22 |
MXPA02000412A (es) | 2004-05-21 |
FR2819626A1 (fr) | 2002-07-19 |
CN1261957C (zh) | 2006-06-28 |
PT1223595E (pt) | 2008-06-16 |
DE60133798T2 (de) | 2009-06-25 |
EP1223595B1 (fr) | 2008-04-30 |
FR2819626B1 (fr) | 2003-02-21 |
US6605788B2 (en) | 2003-08-12 |
CN1365130A (zh) | 2002-08-21 |
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