WO2006048583A2 - Dispositif de commande mecanique pour un commutateur a trois positions et un point mort - Google Patents
Dispositif de commande mecanique pour un commutateur a trois positions et un point mort Download PDFInfo
- Publication number
- WO2006048583A2 WO2006048583A2 PCT/FR2005/050923 FR2005050923W WO2006048583A2 WO 2006048583 A2 WO2006048583 A2 WO 2006048583A2 FR 2005050923 W FR2005050923 W FR 2005050923W WO 2006048583 A2 WO2006048583 A2 WO 2006048583A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- control
- curvature
- light
- operating
- axes
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
-
- 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
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more switches
Definitions
- the invention relates, in general, to the mechanical control of a three-position switch and in particular to medium or high voltage electrical switching, such as a switch controlled from a control member having two output shafts. engine. It is therefore a set of mechanical parts placed between a three-position electrical switch with a single movement input and two actuators each having a drive output shaft. This set of parts constitutes what is generally called an "interface”.
- switches or switches with three positions to be able to either power up the installation, for example “closed set of bars ", or connect it to the earth, for example” earth ", passing through a sectioning position.
- the selected position is a normal position that ensures electrical insulation between the two connected positions. Standardization requires separate motion inputs for the "sectioning / closed busbar” function and for the "sectioning / earthing” function. An interlocking must exist between these two functions, so that the operation on one of the functions, either “earthing” or “busbar connection”, can only be performed when the other function is in position " sectioning "and then she stays there. In other words and more generally, the passage in the "switched" position of one of the two control members can be done only when the switch is in the "sectioning” position, also called “dead point” .
- the three-position switch is driven by two separate commands each having their movement output.
- An interface provides, via mechanical parts, a power transmission and movement of a mechanism to its associated switch (Maltese cross, for example) without providing the locking functions imposed by the standards.
- the object of the invention is therefore to propose a mechanical control device for a three-position and two-input switch whose kinematics of the component parts of the interface associates with the power transmission and movement functions the imposed locking functions, without added parts neither on the interface nor in the mechanism, and allowing more flexibility of use (possibility to vary different parameters) and increased reliability at lower cost.
- the main object of the invention is a mechanical control device for a three-position switch, namely two switching positions and a disconnecting position, and two separate control inputs, comprising, inter alia, two separate control members for mechanically rotating a single mechanical member, each in a specific position.
- the device and its locking means consist of:
- a rather flat maneuvering piece comprising two control axes and an operating axis placed so as to form a predetermined triangle, the control axes being spaced apart from each other by a first determined distance and separated from each other; axis of control by determined second and third distances;
- each control member consists of a pivoting lever which is associated with a rod pivotally mounted on it by a first end and on one of the two control axes by its second end, and being associated respectively with one of the two control lights.
- the axis of each pivoting lever is placed substantially in the direction defined by the two ends of the control light associated with it.
- FIG. 2c a kinematic diagram of the device according to the invention in its second position
- FIG. 1 shows, schematically, the control device according to the invention.
- the latter consists mainly of fixed panels 1 (only one is shown in this figure), an operating part 5, two control members 2 and 3 and a switching axis 41.
- the two fixed panels 1 carry the entire control device. They carry, inter alia, two control axes 2 and 3. Each of these two control axes 2 and 3 constitutes, for the operators, the operating members of the switch. The latter must be manipulated by either one of these two control shafts 2 and 3. To each of these is secured a control lever respectively 20 and 30, so that a rotation of 2 or 3 control shaft causes the rotation of the control lever 20 or 30 which is subject to it, about the axis of rotation of the control shaft 2 or 3.
- control levers 20 or 30 At the distal end 21 or 31 of these two control levers 20 or 30 is rotatably secured to a first end 61 or 71 of a control rod 6 or 7.
- the second end 62 or 72 of these two rods 6 or 7 is rotatably mounted on the workpiece 5, along perpendicular axes each materialized by a control axis 5B or 5C perpendicular and integral with the actuating member 5.
- These two control axes 5B and 5C are spaced apart from each other by a first distance L determined .
- control shafts 2 and 3 is such that the control levers 20 and 30 form, in the "dead center” position, a slight angle with their respective control rods 6 and 7.
- the passage "Neutral” by the systems constituted by the rods 6 or 7 and the control levers 20 or 30 locks the operating part 5 in a "switched" portion, for example a neutral position of the switch, during electrodynamic efforts.
- the operating member 5 is therefore relatively flat in shape, placed between the two panels 1 and has a generally triangular shape.
- This triangle has a shape determined by these three sides equal to three determined distances L, Li and L 2 .
- the fact that this triangle is equilateral in the figures has only one embodiment, the triangle may be any.
- the two control axes 5B and 5C are subject to the connecting rods 6 and 7, but they are each placed at a vertex of the determined triangle formed by the operating part 5 and separated by the first distance L.
- the operating shaft 5A is secured to a first end 81 of an operating rod 8 whose second end 82 is rotatably connected by the switching shaft 9 to an operating lever 4.
- the latter is pivotally mounted around of a switching axis 41.
- the movable axis of relative rotation of the second end 82 of the operating rod 8 and the operating lever 4 materializes the position of the connection piece, that is to say the one that will establish or inhibit the two future connections.
- each of the fixed panels 1 are three lights IA, IB and IC. Two of these lights IB and IC are control lights and each receive respectively a control axis 5B or 5C which can slide in its respective control light IB or IC.
- control shafts 2 and 3 are very substantially in the axis of the associated control light 5B and 5C.
- Each of the control lights IB and IC has a curved shape defined by a radius of curvature equal to the first determined distance L separating the control axes 5B and 5C between them.
- the center of the curvature of each of these control lights IB and IC is defined by a first end of the other control light, the closest to the control axes 2 and 3.
- the point B, located at one end of the control light IB is the center of curvature of the operating light IC and vice versa
- the point C at one end of the control light IC is the center of curvature of the IB control light.
- the third light IA is in fact made up of two curved parts 51 and 52 coming together at a common point A forming, with the other two points B and C defined by one end of the control lights IB and IC, a same triangle of determined form identical to that formed by the three control axes 5B and 5C and control 5A.
- Each of these curved portions has a radius of curvature of values L1 and L2, respectively. Their center of curvature is also constituted by the two other respective vertices B and C of the determined triangle, that is to say by the ends of the control lights IB and IC. As can be seen in FIG.
- the three operating axes 5A and 5B and 5C can each slide in a light, the operating light IA for the operating axis 5A and the control lights IB and IC for the control pins B and C, all integral with the actuating part 5. This can therefore pivot around the two points B and C of Figure 1, one of the two control axes 5B or 5C being fixed, both others, 5A sliding in their respective groove being movable.
- Figures 2a, 2b and 2c show the resulting movements.
- the device is in the "neutral" position.
- the operating part 5 is therefore in its central position, the operating axis 5A being in the middle of the operating light IA, that is to say between the curved parts 51 and 52 thereof.
- the control pins 5B and 5C are at the ends of the lights IB and IC located closest to the control shafts 2 and 3.
- the control shaft 2 has been rotated in the direction indicated by the arrow (trigonometrical direction).
- a rotation in the opposite direction is also possible.
- this rotation causes the displacement of the control rod 6 pushing the control pin B in the control light IB, the control axis 5C remaining stuck in the first end of the other control light IC.
- the operating axis 5A is thus moved to the distal end of the second curved portion 52 of the operating light IA. It follows a rotation of the operating lever 4 about its pivot axis 41 and the displacement of the switching shaft 9 and the operating rod 8.
- the control spindle 5B thus remains locked in the distal end of the control light IB, whereas the control spindle 5C subjected to the second control shaft 3 slides in the second control light IC to abut on its other end.
- the operating shaft 5A has slid into the first curved portion 51 of the operating groove 1 and the operating lever 4 has been rotated in the opposite direction.
- the operating point A has made a movement opposite to that shown in FIG. 2b. In this position, it is impossible to maneuver the first control shaft 2, the position of the operating part 5 and control axes 5B and maneuver 5A preventing it.
- the operating rod 8 and the operating lever 4 are not essential, the operating shaft 5A can be linked by another equivalent function device to the switching shaft.
- This device allows a certain flexibility as to the possibilities of use, in particular concerning the exit positions of the mechanism and the angles of rotation.
Landscapes
- Switches With Compound Operations (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0452533 | 2004-11-04 | ||
| FR0452533A FR2877487B1 (fr) | 2004-11-04 | 2004-11-04 | Dispositif de commande mecanique pour un commutateur a trois positions et un point mort |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2006048583A2 true WO2006048583A2 (fr) | 2006-05-11 |
| WO2006048583A3 WO2006048583A3 (fr) | 2006-08-31 |
Family
ID=34950680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2005/050923 Ceased WO2006048583A2 (fr) | 2004-11-04 | 2005-11-03 | Dispositif de commande mecanique pour un commutateur a trois positions et un point mort |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2877487B1 (fr) |
| WO (1) | WO2006048583A2 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710374A1 (de) * | 1987-03-28 | 1988-10-13 | Bbc Brown Boveri & Cie | Antriebsvorrichtung zur betaetigung wenigstens eines drehbar gelagerten kontaktmessers eines trennschalters |
| FR2660109B1 (fr) * | 1990-03-23 | 1992-06-05 | Merlin Gerin | Mecanisme de commande d'un interrupteur a trois positions. |
| FR2770680B1 (fr) * | 1997-11-06 | 1999-12-03 | Schneider Electric Sa | Mecanisme de commande a bielles pour un interrupteur a trois positions |
-
2004
- 2004-11-04 FR FR0452533A patent/FR2877487B1/fr not_active Expired - Fee Related
-
2005
- 2005-11-03 WO PCT/FR2005/050923 patent/WO2006048583A2/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR2877487B1 (fr) | 2007-04-06 |
| FR2877487A1 (fr) | 2006-05-05 |
| WO2006048583A3 (fr) | 2006-08-31 |
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