CA2024198A1 - Operating mechanism of a high-voltage multipole switch - Google Patents
Operating mechanism of a high-voltage multipole switchInfo
- Publication number
- CA2024198A1 CA2024198A1 CA 2024198 CA2024198A CA2024198A1 CA 2024198 A1 CA2024198 A1 CA 2024198A1 CA 2024198 CA2024198 CA 2024198 CA 2024198 A CA2024198 A CA 2024198A CA 2024198 A1 CA2024198 A1 CA 2024198A1
- Authority
- CA
- Canada
- Prior art keywords
- crank
- operating
- shaft
- loading
- geared motor
- 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.)
- Abandoned
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
-
- 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
- H01H33/022—Details particular to three-phase circuit breakers
Abstract
ABSTRACT
OPERATING MECHANISM OF A HIGH-VOLTAGE MULTIPOLE SWITCH
An operating mechanism (40) of a high-voltage switch comprises a first operating crank (52) coupled by a transmission rod (54) to a second operating crank (56), which is keyed onto an operating shaft (58) of the switch. A toggle (65), made up of a loading crank (66) articulated on a telescopic support guide (70) of an energy storage spring (72), cooperates with the two operating cranks (52, 56) to constitute a double-tumbler mechanism without latching. The loading crank (66) is driven by a transmission mechanism (88) controlled either automatically by a geared motor unit (90) or manually by a shaft (94) of an emergency control (44).
Refer to figure 9.
OPERATING MECHANISM OF A HIGH-VOLTAGE MULTIPOLE SWITCH
An operating mechanism (40) of a high-voltage switch comprises a first operating crank (52) coupled by a transmission rod (54) to a second operating crank (56), which is keyed onto an operating shaft (58) of the switch. A toggle (65), made up of a loading crank (66) articulated on a telescopic support guide (70) of an energy storage spring (72), cooperates with the two operating cranks (52, 56) to constitute a double-tumbler mechanism without latching. The loading crank (66) is driven by a transmission mechanism (88) controlled either automatically by a geared motor unit (90) or manually by a shaft (94) of an emergency control (44).
Refer to figure 9.
Description
202~9~
OPERATING MæCHANISM OF A HIGH-VOLTAGE MULTIPOLE SWITCH
... ... . _ _ _ BACKGROUND OF THE INVENTION
The invention relates to an operating mechanism for a high-voltage multipole electrical switch or circuit breaker capable ~- of occupying a first closed position, and a second open position of the contacts, said mechanism comprising :
`:
- an energy storage device with a toggle made up of a loading crank articulated by a spindle on a telescopic support guide of a compression spring, :`
- a first operating crank mounted on a loading shaft, and coupled by a transmission rod to a second operating crank, which ~ is keyed onto an operating shaft of the switch, - and operating means of the loading crank to pass the toggle dead point when the mechanism switches from the first position to the second position, and vice-versa.
:, The documents FR-A-2,500,222 and 2,613,123 describe operating mechanisms of the tumbler type for a three-position switch, one ,i of which is the earthing position. An auxiliary locking catch of the operating crank is rendered active during the loading operation of the energy storage spring. This locking function is indispensable so as not to disturb the state of the switch during compression of the spring. These state-of-the-art mechanisms are relatively complicated due to the presence of the `; auxiliary locking catch.
The object of the invention is to achieve a simple and reliable operating mechanism for a high-voltage switch or circuit breaker.
., .
OPERATING MæCHANISM OF A HIGH-VOLTAGE MULTIPOLE SWITCH
... ... . _ _ _ BACKGROUND OF THE INVENTION
The invention relates to an operating mechanism for a high-voltage multipole electrical switch or circuit breaker capable ~- of occupying a first closed position, and a second open position of the contacts, said mechanism comprising :
`:
- an energy storage device with a toggle made up of a loading crank articulated by a spindle on a telescopic support guide of a compression spring, :`
- a first operating crank mounted on a loading shaft, and coupled by a transmission rod to a second operating crank, which ~ is keyed onto an operating shaft of the switch, - and operating means of the loading crank to pass the toggle dead point when the mechanism switches from the first position to the second position, and vice-versa.
:, The documents FR-A-2,500,222 and 2,613,123 describe operating mechanisms of the tumbler type for a three-position switch, one ,i of which is the earthing position. An auxiliary locking catch of the operating crank is rendered active during the loading operation of the energy storage spring. This locking function is indispensable so as not to disturb the state of the switch during compression of the spring. These state-of-the-art mechanisms are relatively complicated due to the presence of the `; auxiliary locking catch.
The object of the invention is to achieve a simple and reliable operating mechanism for a high-voltage switch or circuit breaker.
., .
2~24198 SUMMARY OF THE INVENTION
.
The mechanism according to the invention is characterized in that the loading crank is mounted loose on the loading shaft and cooperates with drive spigots of the first operating crank, that opposite the spindle of the toggle, the telescopic guide of the spring bears on a pin located on the second operating crank to ge~nerate during the loading operation of the spring a temporary retaining torque of the first and second cranks, which are held in their initial state until the toggle is broken, and that the operating means of the loading crank comprise a transmission mechanism controlled either automatically by a geared motor unit or manually by a shaft coupled to an emergency control by a connecting rod.
The presence of the temporary retaining torque during loading of the spring results from the relative positioning of the toggle in relation to the second operating crank, and avoids additional latches or catches having to be used.
The transmission mechanism is connected to the geared motor unit by a kinematic link, arranged to allow automatic operations by the geared motor unit without any reaction on the shaft of the emergency control, and reciprocally to allow manual operation by the shaft of the emergency control without bringing about any forced rotation of the output shaft of the geared motor unit.
, ., There is mounted on the emergency control shaft a cam designed to cooperate with a microswitch device to interrupt the electrical orders transmitted to the geared motor unit in the event of manual actuation of the emergency control connecting rod.
This operating mechanism is particularly suitable for a three-phase switch on a pole of an overhead electrical grid system.
, ~2~198 BRIEF DESCRIPTION OF THE DRAWINGS
Other advantages and features will become more clearly apparent from the following description of an illustrative embodiment of the invention, given as a non-restrictive example only and represented in the accompanying drawings, in which :
- Figure 1 shows a perspective view of an overhead substation with a three-phase switch equipped with the operating mechanism according to the invention ;
- Figures 2 to 4 represent the double-tumbler device of the mechanism, respectively in the open position, in an intermediate position passing the closing dead point, and in the closed position ;
- Figure 5 is a view of the transmission mechanism equipped with the emergency control shaft ;
.~
- Figure 6 shows the assembly of the transmission mechanism in figure 5 on the double-tumbler device in figure 4 ;
;:
- Figures 7 and 8 represent the geared motor unit before and after actuation of the emergency control ;
':
- Figure 9 shows the complete mechanism in the closed position;
- Figure 10 is a sectional view along the line XX of the switch and mechanism according to figure 1.
., ` DESCRIPTION OF THE PREFERRED EMBODIMENT
. . _ . . _ . _ . _ : Figure 1 shows a three-phase electrical switchgear device, notably a switch 10 or a circuit breaker, fitted on a pole 12 of . : ~ . ;
.
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a high-voltage overhead electrical grid system. A system of spacers 14, 16 securedly fixed to the top of the pole 12, acts as support for two adjacent sections of line conductors 18R, 18S, 18T ; 20R, 20S, 20T of the grid system, maintaining a preset distance between phases. The electrical isolation with the spacers 14, 16 and the pole 12 is provided by line insulators 22. The pole 12 is at earth potential. A horizontal frame 24 fixed to the pole 12 between the spacer system 14, 16 and the switch 10, supports a voltage transformer 26 and six lightning arresters 28. The transformer 26 is connected directly to two phases of the grid system, and is used to supply a geared motor, and the measurement and transmission electronics.
Each lightning arrester 28 is equipped at its top end with a connection terminal 30, connected respectively to a corresponding line conductor 18R, 18S, 18T ; 20R, 20S, 20T of the grid system by an electrical connecting cable 32, and to a connection terminal 34R, 34S, 34T ; 36R, 36S, 36T of the switch 10 by a cable 38 fitted with a plug-in connector.
Disconnection or electrical continuity between the adjacent sections of the conductors 18R, 18S, 18T ; 20R, 20S, 20T is performed by the switch 10.
.
The main operating mechanism 40 of the switch 10 is placed directly underneath the switch 10, and is controlled either automatically by a built-in geared motor, or manually by a connecting rod 42 operable from an emergency control 44 located ' at the foot of the pole 12.
. .
The main mechanism 40 is provided with a double-tumbler device 46 (figs. 2 to 4) housed between two fixed flanges 48, 50, and comprising a first operating crank 52 articulated by a ` transmission rod 54 on a second operating crank 56 keyed onto the operating shaft 58 of the switch 10. The first crank 52 is :;- .. ' :
- ' ' ' ~. ' .: ': ' 2~2~9~
mounted on a loading shaft 60 extending parallel to the operating shaft 58 between the two flanges 48, 50. The two articulation axes 61, 62 of the rod 54 on the cranks 52, 56 are eccentric in relation to the corresponding shafts 60, 58.
The double-tumbler device 46 is associated with an energy storage device 64 comprising a toggle 65 made up of a loading crank 66 articulated by a spindle 68 on a telescopic support guide 70 of a compression spring 72. The loading crank 66 is coaxially mounted loose on the loading shaft 60, and can cooperate with two spigots 74, 76 fixed on the first crank 52.
' Opposite from the spindle 68, the telescopic guide 70 of the spring 72 bears on a crank pin 78 of the second operating crank 56.
A first end of closing travel stop 80 and a second end of opening travel stop 82 cooperate respectively with stopping surfaces 84, 86 of the first and second operating cranks 52, 56, when the mechanism 40 actuates the switch 10 in the closed and open positions.
The loading crank 66 is controlled by a transmission mechanism 88 (fig. 5) capable of being driven either by a geared motor unit 90 (fig. 7) or by an auxiliary crank 92 mounted on an operating shaft 94 mechanically coupled to the connecting rod 42 of the emergency control 44. The operating shaft 94 passes through orifices 95 arranged in the flanges 48, 50.
:`
In figure 5, the transmission mechanism 88 comprises a ~ transmission crank 96 coaxially mounted loose on the shaft 94 of ; the emergency manual control 44. The transmission crank 96 is provided with an oblong opening 98 centered on the shaft 94.
Inside the opening 98 there is housed a first drive pin 100 fixed to the auxiliary cran~ 92.
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` 2~2419~
The transmission crank 96 is articulated by a connecting rod 102 to a drive crank 104 having an oblong opening, inside which there is housed a second drive pin 108. The latter is fixed to a coupllng crank 110 mounted on the loading shaft 60, and coupled to the loading crank 66.
In figure 6, the transmission mechanism 88 is coupled to the loading cran~ 66 of the double-tumbler device 46 of figure 4, represented in the closed position of the switch 10.
.
The geared motor unit 90 according to figures 7 and 8 comprises a motor and speed reducer assembly 112 whose output shaft 114 is fitted with a tenon 116 capable of driving an operating crank 118 mounted loose on the shaft 114 through half a rotation. The crank 118 comprises two diametrically opposed notches cooperating alternately with a locking ratchet 1?4. The output shaft 114 of the geared motor 90 always rotates in the same direction ~represented in figure 7 by counterclockwise), for remote control operations on closing and opening. The crank 118 is articulated on a transmission rod 126 having a coupling spindle 128 capable of being engaged in an orifice 130 of the transmission crank 96.
Figure 9 represents the mechanism 40 fully assembled, with the output shaft 114 of the geared motor unit 90 housed in a notch 132 of the flanges 48, 50. A cam 136, securedly fixed to the shaft 94 of the emergency manual control 44 cooperates with a microswitch device 138 to indicate and interrupt the electrical orders sent to the geared motor unit 90 as soon as the emergency connecting rod 42 is operated from the remote control position . . .
~ to a manual control position (opening or closing).
:
In figure 10, it can be noted that the left-hand terminals 36S, 36R, 36T of the switch 10 are in electrical connection with the :: ` ' - ' - :: , . :
2 ~ 8 :
.:
stationary contacts 140 of the three poles, and that the right-hand terminals 34S, 34R, 34T of the switch 10 are connected by a braided strip 142 to the corresponding movable contacts 1440 A
crossbar 146 is fitted with rotation around an axis 148 extending perpendicular to the movable contacts 144, and is coupled to the operating shaft 58 of the mechanism 40 by means of a coupling crank 149. Each pin-shaped movable contact 144 is coupled to a crank 150 of the crossbar 146, so as to transform the rotation movement of the crossbar 146 into a translation movement of the movable contact 144. The crossbar 146 passes through the sealed enclosure 152 of the SF6-insulated switch 10, with an elastic seal 154 interposed.
.;
- Operation of the operating mechanism 40 of the switch 10 is as follows :
, O~ERATION ~ T~E DOUBLE-TUMBLER DEVI OE 4~.
., .
In the open position (fig. 2), the second operating crank 56 of the double-tumbler device 46 bears against the second end of ' opening travel stop 82. The spring 72 of the energy storage device 64 is relaxed. The contacts 140, 144 of the switch 10 are separated.
:
The closing operation of the switch 10 is achieved by counter-clockwise rotation of the loading crank 66 (see arrow F, fig. 3) by means of the transmission mechanism 88 actuated either manually by the shaft 94 of the emergency control 44, or automatically by remote control of the geared motor unit 90. The movement of the loading crank 66 causes progressive compression of the spring 72 on its telescopic guide 70 up to a maximum value situated in the position where the closing dead point is passed in fig 3. The action of the spring 72 on the second operating crank 56 generates a retaining torque which urges the crank 56 against the second stop 82 during the loading operation : f : , .~, .:......... .
., : ~
:;:; .: :
~2~98 of the spring 72. The switch 10 remains in its open position during the loading time, without the cranks 56, 52 being positively locked by additlonal latching means. Continued counterclockwise rotation of the loading crank 66 (arrow F, fig.
.
The mechanism according to the invention is characterized in that the loading crank is mounted loose on the loading shaft and cooperates with drive spigots of the first operating crank, that opposite the spindle of the toggle, the telescopic guide of the spring bears on a pin located on the second operating crank to ge~nerate during the loading operation of the spring a temporary retaining torque of the first and second cranks, which are held in their initial state until the toggle is broken, and that the operating means of the loading crank comprise a transmission mechanism controlled either automatically by a geared motor unit or manually by a shaft coupled to an emergency control by a connecting rod.
The presence of the temporary retaining torque during loading of the spring results from the relative positioning of the toggle in relation to the second operating crank, and avoids additional latches or catches having to be used.
The transmission mechanism is connected to the geared motor unit by a kinematic link, arranged to allow automatic operations by the geared motor unit without any reaction on the shaft of the emergency control, and reciprocally to allow manual operation by the shaft of the emergency control without bringing about any forced rotation of the output shaft of the geared motor unit.
, ., There is mounted on the emergency control shaft a cam designed to cooperate with a microswitch device to interrupt the electrical orders transmitted to the geared motor unit in the event of manual actuation of the emergency control connecting rod.
This operating mechanism is particularly suitable for a three-phase switch on a pole of an overhead electrical grid system.
, ~2~198 BRIEF DESCRIPTION OF THE DRAWINGS
Other advantages and features will become more clearly apparent from the following description of an illustrative embodiment of the invention, given as a non-restrictive example only and represented in the accompanying drawings, in which :
- Figure 1 shows a perspective view of an overhead substation with a three-phase switch equipped with the operating mechanism according to the invention ;
- Figures 2 to 4 represent the double-tumbler device of the mechanism, respectively in the open position, in an intermediate position passing the closing dead point, and in the closed position ;
- Figure 5 is a view of the transmission mechanism equipped with the emergency control shaft ;
.~
- Figure 6 shows the assembly of the transmission mechanism in figure 5 on the double-tumbler device in figure 4 ;
;:
- Figures 7 and 8 represent the geared motor unit before and after actuation of the emergency control ;
':
- Figure 9 shows the complete mechanism in the closed position;
- Figure 10 is a sectional view along the line XX of the switch and mechanism according to figure 1.
., ` DESCRIPTION OF THE PREFERRED EMBODIMENT
. . _ . . _ . _ . _ : Figure 1 shows a three-phase electrical switchgear device, notably a switch 10 or a circuit breaker, fitted on a pole 12 of . : ~ . ;
.
:. .: :~
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a high-voltage overhead electrical grid system. A system of spacers 14, 16 securedly fixed to the top of the pole 12, acts as support for two adjacent sections of line conductors 18R, 18S, 18T ; 20R, 20S, 20T of the grid system, maintaining a preset distance between phases. The electrical isolation with the spacers 14, 16 and the pole 12 is provided by line insulators 22. The pole 12 is at earth potential. A horizontal frame 24 fixed to the pole 12 between the spacer system 14, 16 and the switch 10, supports a voltage transformer 26 and six lightning arresters 28. The transformer 26 is connected directly to two phases of the grid system, and is used to supply a geared motor, and the measurement and transmission electronics.
Each lightning arrester 28 is equipped at its top end with a connection terminal 30, connected respectively to a corresponding line conductor 18R, 18S, 18T ; 20R, 20S, 20T of the grid system by an electrical connecting cable 32, and to a connection terminal 34R, 34S, 34T ; 36R, 36S, 36T of the switch 10 by a cable 38 fitted with a plug-in connector.
Disconnection or electrical continuity between the adjacent sections of the conductors 18R, 18S, 18T ; 20R, 20S, 20T is performed by the switch 10.
.
The main operating mechanism 40 of the switch 10 is placed directly underneath the switch 10, and is controlled either automatically by a built-in geared motor, or manually by a connecting rod 42 operable from an emergency control 44 located ' at the foot of the pole 12.
. .
The main mechanism 40 is provided with a double-tumbler device 46 (figs. 2 to 4) housed between two fixed flanges 48, 50, and comprising a first operating crank 52 articulated by a ` transmission rod 54 on a second operating crank 56 keyed onto the operating shaft 58 of the switch 10. The first crank 52 is :;- .. ' :
- ' ' ' ~. ' .: ': ' 2~2~9~
mounted on a loading shaft 60 extending parallel to the operating shaft 58 between the two flanges 48, 50. The two articulation axes 61, 62 of the rod 54 on the cranks 52, 56 are eccentric in relation to the corresponding shafts 60, 58.
The double-tumbler device 46 is associated with an energy storage device 64 comprising a toggle 65 made up of a loading crank 66 articulated by a spindle 68 on a telescopic support guide 70 of a compression spring 72. The loading crank 66 is coaxially mounted loose on the loading shaft 60, and can cooperate with two spigots 74, 76 fixed on the first crank 52.
' Opposite from the spindle 68, the telescopic guide 70 of the spring 72 bears on a crank pin 78 of the second operating crank 56.
A first end of closing travel stop 80 and a second end of opening travel stop 82 cooperate respectively with stopping surfaces 84, 86 of the first and second operating cranks 52, 56, when the mechanism 40 actuates the switch 10 in the closed and open positions.
The loading crank 66 is controlled by a transmission mechanism 88 (fig. 5) capable of being driven either by a geared motor unit 90 (fig. 7) or by an auxiliary crank 92 mounted on an operating shaft 94 mechanically coupled to the connecting rod 42 of the emergency control 44. The operating shaft 94 passes through orifices 95 arranged in the flanges 48, 50.
:`
In figure 5, the transmission mechanism 88 comprises a ~ transmission crank 96 coaxially mounted loose on the shaft 94 of ; the emergency manual control 44. The transmission crank 96 is provided with an oblong opening 98 centered on the shaft 94.
Inside the opening 98 there is housed a first drive pin 100 fixed to the auxiliary cran~ 92.
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` 2~2419~
The transmission crank 96 is articulated by a connecting rod 102 to a drive crank 104 having an oblong opening, inside which there is housed a second drive pin 108. The latter is fixed to a coupllng crank 110 mounted on the loading shaft 60, and coupled to the loading crank 66.
In figure 6, the transmission mechanism 88 is coupled to the loading cran~ 66 of the double-tumbler device 46 of figure 4, represented in the closed position of the switch 10.
.
The geared motor unit 90 according to figures 7 and 8 comprises a motor and speed reducer assembly 112 whose output shaft 114 is fitted with a tenon 116 capable of driving an operating crank 118 mounted loose on the shaft 114 through half a rotation. The crank 118 comprises two diametrically opposed notches cooperating alternately with a locking ratchet 1?4. The output shaft 114 of the geared motor 90 always rotates in the same direction ~represented in figure 7 by counterclockwise), for remote control operations on closing and opening. The crank 118 is articulated on a transmission rod 126 having a coupling spindle 128 capable of being engaged in an orifice 130 of the transmission crank 96.
Figure 9 represents the mechanism 40 fully assembled, with the output shaft 114 of the geared motor unit 90 housed in a notch 132 of the flanges 48, 50. A cam 136, securedly fixed to the shaft 94 of the emergency manual control 44 cooperates with a microswitch device 138 to indicate and interrupt the electrical orders sent to the geared motor unit 90 as soon as the emergency connecting rod 42 is operated from the remote control position . . .
~ to a manual control position (opening or closing).
:
In figure 10, it can be noted that the left-hand terminals 36S, 36R, 36T of the switch 10 are in electrical connection with the :: ` ' - ' - :: , . :
2 ~ 8 :
.:
stationary contacts 140 of the three poles, and that the right-hand terminals 34S, 34R, 34T of the switch 10 are connected by a braided strip 142 to the corresponding movable contacts 1440 A
crossbar 146 is fitted with rotation around an axis 148 extending perpendicular to the movable contacts 144, and is coupled to the operating shaft 58 of the mechanism 40 by means of a coupling crank 149. Each pin-shaped movable contact 144 is coupled to a crank 150 of the crossbar 146, so as to transform the rotation movement of the crossbar 146 into a translation movement of the movable contact 144. The crossbar 146 passes through the sealed enclosure 152 of the SF6-insulated switch 10, with an elastic seal 154 interposed.
.;
- Operation of the operating mechanism 40 of the switch 10 is as follows :
, O~ERATION ~ T~E DOUBLE-TUMBLER DEVI OE 4~.
., .
In the open position (fig. 2), the second operating crank 56 of the double-tumbler device 46 bears against the second end of ' opening travel stop 82. The spring 72 of the energy storage device 64 is relaxed. The contacts 140, 144 of the switch 10 are separated.
:
The closing operation of the switch 10 is achieved by counter-clockwise rotation of the loading crank 66 (see arrow F, fig. 3) by means of the transmission mechanism 88 actuated either manually by the shaft 94 of the emergency control 44, or automatically by remote control of the geared motor unit 90. The movement of the loading crank 66 causes progressive compression of the spring 72 on its telescopic guide 70 up to a maximum value situated in the position where the closing dead point is passed in fig 3. The action of the spring 72 on the second operating crank 56 generates a retaining torque which urges the crank 56 against the second stop 82 during the loading operation : f : , .~, .:......... .
., : ~
:;:; .: :
~2~98 of the spring 72. The switch 10 remains in its open position during the loading time, without the cranks 56, 52 being positively locked by additlonal latching means. Continued counterclockwise rotation of the loading crank 66 (arrow F, fig.
3) causes the toggle 65 to be broken and the spring 72 to be relaxed. This results in the flrst operating crank 52 being driven against the first s~op 80 and the second operating crank 56 being simultaneously driven to the closed position following the action of the rod 54 (figs. 4, 6, 9). In this position, the contacts 140, 144 of the three poles of the switch 10 are closed, and the loading crank 66 has undergone a rotation movement of about 180 degrees from the open position.
The reverse operation to open the switch 10 is achieved by clockwise rotation of the loading crank 66 (see arrows O, figs.
The reverse operation to open the switch 10 is achieved by clockwise rotation of the loading crank 66 (see arrows O, figs.
4, 6, 9). It can likewise be noted that the first operating crank 52 remains against the stop 80 until the toggle 65 is broken. This temporary blocking of the cranks 52, 56 during loading of the spring 72 is due to the retaining torque exerted by the pressing force of the spring 72, whose line of action is offset with respect to the shaft 58 in the dead point position.
.~
DRIVING TH~ TRANSMISSION MEC~ANI~M 88.
' In the case of the remote control, the closing and opening orders are sent directly to the geared motor unit 90.
The presence of the oblong opening 98 in the transmission crank 96 allows automatic operations by the geared motor unit 90, without any forced reaction on the shaft 94 of the emergency manual control 44, which is necessarily in the inactive position and inhibited due to the priority action of the remote control.
The shaft 114 of the geared motor unit 90 still rotates counterclockwise for the closing and opening operations.
' . - - . , :
:' : ' ' , ~ . ' . : ' ' ~ : : : :
.: . :: . : ... ..
~'~ . ,~, : ' :: .. : . . .. .
. ~ . : .-, ~ 0 ~ 8 In the case of actuation of the connecting rod 42 of the emergency manual control 44, the cam 136 securedly fixed to the shaft 94 brings about switching of the microswitch device 138 to interrupt the electrical orders transmitted to the geared motor unit 90, as soon as the connecting rod 42 leaves -the remote control position. The fact that the output crank 118 of the geared motor unit 90 is loose mounted over half a rotation enables the shaft 94 to be operated by the emergency manual control 44 without causing a forced rotation of the output shaft 114 of the motor and speed reducer assembly 112. This state is represented in figure 8, in which the output shaft 114 of the geared motor unit 90 is still in the closed position, whereas the transmission rod 126 has been actuated to the open position by the transmission crank 96, following a manual opening by the emergency control 44.
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. ~
..
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DRIVING TH~ TRANSMISSION MEC~ANI~M 88.
' In the case of the remote control, the closing and opening orders are sent directly to the geared motor unit 90.
The presence of the oblong opening 98 in the transmission crank 96 allows automatic operations by the geared motor unit 90, without any forced reaction on the shaft 94 of the emergency manual control 44, which is necessarily in the inactive position and inhibited due to the priority action of the remote control.
The shaft 114 of the geared motor unit 90 still rotates counterclockwise for the closing and opening operations.
' . - - . , :
:' : ' ' , ~ . ' . : ' ' ~ : : : :
.: . :: . : ... ..
~'~ . ,~, : ' :: .. : . . .. .
. ~ . : .-, ~ 0 ~ 8 In the case of actuation of the connecting rod 42 of the emergency manual control 44, the cam 136 securedly fixed to the shaft 94 brings about switching of the microswitch device 138 to interrupt the electrical orders transmitted to the geared motor unit 90, as soon as the connecting rod 42 leaves -the remote control position. The fact that the output crank 118 of the geared motor unit 90 is loose mounted over half a rotation enables the shaft 94 to be operated by the emergency manual control 44 without causing a forced rotation of the output shaft 114 of the motor and speed reducer assembly 112. This state is represented in figure 8, in which the output shaft 114 of the geared motor unit 90 is still in the closed position, whereas the transmission rod 126 has been actuated to the open position by the transmission crank 96, following a manual opening by the emergency control 44.
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Claims (8)
1. An operating mechanism for a high-voltage multipole electrical switch (10) or circuit breaker capable of occupying a first closed position, and a second open position of the contacts (140, 144), said mechanism (40) comprising :
- an energy storage device (64) with toggle (65) made up of a loading crank (66) articulated by a spindle (68) on a telescopic support guide (70) of a compression spring (72), - a first operating crank (52) mounted on a loading shaft (60), and coupled by a transmission rod (54) to a second operating crank (56), which is keyed onto an operating shaft (58) of the switch (10), - and operating means of the loading crank (66) to pass the toggle (65) dead point when the mechanism (40) switches from the first position to the second position, and vice-versa, characterized in that the loading crank (66) is mounted loose on a loading shaft (60) and cooperates with drive spigots (74, 76) of the first operating crank (52), that opposite the spindle (68) of the toggle (65), the telescopic guide (70) of the spring (72) bears on a pin (78) located on the second operating crank (56) to generate during the loading operation of the spring (72) a temporary retaining torque of the first and second cranks (52, 56), which are held in their initial state until the toggle (65) is broken, and that the operating means of the loading crank (66) comprise a transmission mechanism (88) controlled either automatically by a geared motor unit (90) or manually by a shaft (94) coupled to an emergency control (44) by a connecting rod (42).
- an energy storage device (64) with toggle (65) made up of a loading crank (66) articulated by a spindle (68) on a telescopic support guide (70) of a compression spring (72), - a first operating crank (52) mounted on a loading shaft (60), and coupled by a transmission rod (54) to a second operating crank (56), which is keyed onto an operating shaft (58) of the switch (10), - and operating means of the loading crank (66) to pass the toggle (65) dead point when the mechanism (40) switches from the first position to the second position, and vice-versa, characterized in that the loading crank (66) is mounted loose on a loading shaft (60) and cooperates with drive spigots (74, 76) of the first operating crank (52), that opposite the spindle (68) of the toggle (65), the telescopic guide (70) of the spring (72) bears on a pin (78) located on the second operating crank (56) to generate during the loading operation of the spring (72) a temporary retaining torque of the first and second cranks (52, 56), which are held in their initial state until the toggle (65) is broken, and that the operating means of the loading crank (66) comprise a transmission mechanism (88) controlled either automatically by a geared motor unit (90) or manually by a shaft (94) coupled to an emergency control (44) by a connecting rod (42).
2. The operating mechanism according to claim 1, characterized in that the first and second operating cranks (52, 56) comprise stopping surfaces (84, 86) cooperating respectively in the closed and open positions with a first and a second end of travel stop (80, 82).
3. The operating mechanism according to claim 1 or 2, characterized in that the transmission mechanism (88) is connected to the geared motor unit (90) by a kinematic link, arranged to allow automatic operations by the geared motor unit (90) without any reaction on the shaft (94) of the emergency control (44), and reciprocally to allow manual operation by the shaft (94) of the emergency control (44) without bringing about any forced rotation of the output shaft (114) of the geared motor unit (90).
4. The operating mechanism according to claim 3, characterized in that the transmission mechanism (88) comprises a transmission crank (96) coaxially mounted loose on the shaft (94) of the emergency manual control (44), said crank (96) having an oblong opening (98) acting as housing for a first drive pin (100) fixed to an auxiliary crank (92) keyed onto the shaft (94) of the emergency manual control (44).
5. The operating mechanism according to claim 4, characterized in that the transmission crank (96) is coupled by a transmission rod (126) to an operating crank (118) mounted loose on the output shaft (114) during a preset travel of the geared motor unit (90), said shaft (114) always rotating in the same direction for the closing and opening operations by remote control, and being equipped with a tenon (116) to drive the operating crank (118).
6. The operating mechanism according to claim 5, characterized in that the periphery of the operating crank (118) of the geared motor unit (90) comprises a first and a second notch (120, 122) cooperating alternately with a locking ratchet (124).
7. The operating mechanism according to claim 4, 5 or 6, characterized in that on the shaft (94) of the emergency control (44) there is mounted a cam (136) designed to cooperate with a microswitch device (138) to interrupt the electrical orders transmitted to the geared motor unit (90) in the event of manual actuation of the connecting rod (42) of the emergency control (44).
8. The operating mechanism according to any one of the claims 1 to 7, for a three-phase switch (10) fixed on a pole (12) of an overhead electrical grid system, characterized in that the operating mechanism (40) is located underneath the switch (10), and that the connecting rod (42) of the emergency control (44) extends parallel to the pole (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8911810A FR2651603B1 (en) | 1989-09-07 | 1989-09-07 | CONTROL MECHANISM OF A HIGH VOLTAGE MULTIPOLAR SWITCH. |
| FR8911810 | 1989-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2024198A1 true CA2024198A1 (en) | 1991-03-08 |
Family
ID=9385293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2024198 Abandoned CA2024198A1 (en) | 1989-09-07 | 1990-08-29 | Operating mechanism of a high-voltage multipole switch |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0417015B1 (en) |
| CA (1) | CA2024198A1 (en) |
| DE (1) | DE69023195T2 (en) |
| ES (1) | ES2080136T3 (en) |
| FI (1) | FI97832C (en) |
| FR (1) | FR2651603B1 (en) |
| NO (1) | NO301857B1 (en) |
| PT (1) | PT95217B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2706674B1 (en) * | 1993-06-17 | 1995-09-08 | Soule Sa | Electrical line cut-off device with improved control means. |
| FR2786944B1 (en) * | 1998-12-07 | 2003-09-19 | Soule Materiel Electr | IMPROVEMENTS IN ELECTRIC SWITCHING DEVICES FOR MEDIUM AND HIGH VOLTAGE |
| FR2786943A1 (en) * | 1998-12-07 | 2000-06-09 | Soule Materiel Electr | ELECTRICAL SWITCHING DEVICE FOR MEDIUM AND HIGH VOLTAGE |
| IT1314361B1 (en) * | 1999-12-31 | 2002-12-09 | Abb Ricerca Spa | DISCONNECTION UNIT FOR HIGH VOLTAGE AERIAL LINES |
| DE102006061961A1 (en) * | 2006-12-21 | 2008-06-26 | Abb Technology Ag | High-voltage switchgear assembly, has circuit breaker poles superimposedly arranged in vertical plane in horizontal running manner, and components such as disconnecting-earthing switch, arranged in spaces beneath poles |
| FR2921196B1 (en) * | 2007-09-18 | 2009-12-11 | Schneider Electric Ind Sas | DEVICE FOR CONTROLLING THE OPENING AND / OR CLOSING OF ELECTRICAL CONTACTS IN AN ELECTRICAL APPARATUS AND ELECTRICAL APPARATUS COMPRISING SUCH A DEVICE |
| FR2935833A1 (en) | 2008-09-05 | 2010-03-12 | Schneider Electric Ind Sas | DEVICE FOR CONTROLLING THE OPENING AND / OR CLOSING OF CONTACTS IN AN ELECTRICAL APPARATUS |
| CN101393806B (en) * | 2008-10-23 | 2010-09-01 | 浙江正昌锻造股份有限公司 | Fabrication process for energy storage spring conductor rod |
| FR3083366B1 (en) | 2018-06-29 | 2020-06-12 | Socomec | MANUAL CONTROL DEVICE FOR A REMOTE HANDLING SOURCE INVERTER |
| CN116193648B (en) * | 2023-03-10 | 2023-08-29 | 安徽卫家健康科技有限公司 | Graphene heating plate assembly based on temperature control adjustment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1098071B (en) * | 1959-09-24 | 1961-01-26 | Driescher Spezialfab Fritz | Switch-disconnector with snap action of the switch shaft |
| US2995043A (en) * | 1960-06-20 | 1961-08-08 | G & W Electric Speciality Co | Two position snap action operator |
| DE6903932U (en) * | 1969-02-01 | 1970-06-25 | Siemens Ag | SPRING SPEED TRANSMISSION FOR PERFORMANCE ADAPTER |
| FR2181436B3 (en) * | 1972-04-24 | 1975-06-20 | Alsthom Cgee | |
| FR2500222A1 (en) * | 1981-02-13 | 1982-08-20 | Merlin Gerin | MANEUVER MECHANISM FOR ELECTRIC SWITCHING EQUIPMENT WITH THREE SEPARATE POSITIONS |
| FR2613123B1 (en) * | 1987-03-27 | 1989-06-09 | Merlin Gerin | CONTROL MECHANISM OF A THREE-POSITION SWITCH |
| US4791250A (en) * | 1987-08-06 | 1988-12-13 | Square D Company | Trip-free, three-link switch assembly |
-
1989
- 1989-09-07 FR FR8911810A patent/FR2651603B1/en not_active Expired - Fee Related
-
1990
- 1990-08-21 DE DE1990623195 patent/DE69023195T2/en not_active Expired - Fee Related
- 1990-08-21 EP EP19900420379 patent/EP0417015B1/en not_active Expired - Lifetime
- 1990-08-21 ES ES90420379T patent/ES2080136T3/en not_active Expired - Lifetime
- 1990-08-29 CA CA 2024198 patent/CA2024198A1/en not_active Abandoned
- 1990-09-05 PT PT9521790A patent/PT95217B/en not_active IP Right Cessation
- 1990-09-05 FI FI904383A patent/FI97832C/en not_active IP Right Cessation
- 1990-09-06 NO NO903889A patent/NO301857B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO903889D0 (en) | 1990-09-06 |
| EP0417015A1 (en) | 1991-03-13 |
| ES2080136T3 (en) | 1996-02-01 |
| DE69023195D1 (en) | 1995-11-30 |
| PT95217A (en) | 1992-05-29 |
| FI97832B (en) | 1996-11-15 |
| EP0417015B1 (en) | 1995-10-25 |
| FR2651603B1 (en) | 1991-11-08 |
| FI97832C (en) | 1997-02-25 |
| DE69023195T2 (en) | 1996-05-09 |
| FR2651603A1 (en) | 1991-03-08 |
| FI904383A0 (en) | 1990-09-05 |
| NO903889L (en) | 1991-03-08 |
| PT95217B (en) | 1998-06-30 |
| NO301857B1 (en) | 1997-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |