EP2131376A1 - Control device for circuit breakers - Google Patents
Control device for circuit breakers Download PDFInfo
- Publication number
- EP2131376A1 EP2131376A1 EP08017546A EP08017546A EP2131376A1 EP 2131376 A1 EP2131376 A1 EP 2131376A1 EP 08017546 A EP08017546 A EP 08017546A EP 08017546 A EP08017546 A EP 08017546A EP 2131376 A1 EP2131376 A1 EP 2131376A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control device
- drum
- control
- breaker
- indication
- 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
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
Definitions
- the present invention relates to a control device for circuit breakers.
- the invention relates to a device for resetting automatically a residual current operated circuit breaker or another similar apparatus.
- circuit breakers adapted to prevent a fault current from causing danger for users and for the loads connected to the electrical line.
- a residual current operated circuit breaker releases the line, thus interrupting the supply of power to the load or loads arranged downstream.
- Motorized devices are known which are adapted to reset a circuit breaker or to release it by means of a remote control.
- the prior art devices generally include a motor with a double winding, which is capable of rotating an actuation mechanism provided with a worm screw, in one direction or in the other depending on whether it is necessary to close or open the circuit breaker.
- the resetting devices are generally contained in a casing, which can be associated with the circuit breaker so that the actuation mechanism acts on the drum of the handle of the circuit breaker.
- the aim of the present invention is to provide a control device for circuit breakers which is improved functionally and constructively with respect to the devices of the prior art.
- An object of the invention is to provide a control device that is much smaller than the prior art devices having an equal performance.
- Another object of the invention is to provide a device that is significantly cheaper from the production standpoint.
- Another object is to provide a device which, by virtue of its particular constructive characteristics, is capable of ensuring the greatest assurances of reliability and safety in use.
- a control device for circuit breakers comprising a casing, which can be coupled to an electrical device, such as a circuit breaker provided with a control for opening and closing the contacts, said casing comprising a drum, which is kinematically associated with said control for opening and closing the contacts of said circuit breaker; characterized in that said control device comprises a single electric motor which actuates a gear train by means of a worm screw, said gear train being adapted to turn said drum in one direction or the other by means of a rotation switching means.
- the device according to the invention comprises a casing 2, which has the classic standardized shape and forms, at the rear face 3, a means for coupling to other apparatuses associated with an omega rail (not shown), according to DIN standards.
- the casing 2 At its front face the casing 2 has a protrusion 4 in which an actuation drum 5 is arranged.
- the device 1 is studied to be arranged laterally adjacent to other modules and in particular to a circuit breaker 101.
- the mechanism of the reset device is connected to the mechanism of the circuit breaker 101 by means of a bar 102, which has a triangular cross-section and constitutes the rotation axis of the drum 5, so that the rotation of the drum 5 corresponds exactly to he rotation of the drum of the circuit breaker 101, which is provided with the usual external actuation lever or handle 103.
- the device 1 has the actuation drum 5 associated with a gear train 6 by means of a bar 7.
- the bar 7 has an end which is pivoted to the first gear 61 of the gear train 6 and the other end which can slide in a slot 8 of a member which is rotatably associated with the drum 5.
- the gear train 6 draws its motion from a worm screw 9 driven by an electric motor 10, namely a single-phase synchronous motor.
- the system includes a one-way or freewheeling bearing, which allows the worm screw to rotate in a single direction.
- the single-phase synchronous motor might in fact start rotating in either direction, but it is preferable for the gear train to always rotate in a preset direction in order to better exploit the torque of the motor.
- the gear train 6 moves the bar 7, which turns the drum 5 alternately in one direction or the other, by the action of two contoured oscillating members, respectively designated by the reference numerals 12 and 13.
- the first oscillating member 12 is pivoted in an upper region in a fulcrum 14 and has a bevelled end 16, which is pushed toward the axis of the drum 5 by a contrast spring 18.
- the second oscillating member 13 is pivoted in an upper region in a fulcrum 15 and has a bevelled end 17, which is pushed toward the axis of the drum 5 by the contrast spring 18.
- the contoured oscillating members 12 and 13 act on the upper end of the bar 7 so that it moves in one direction or in the opposite direction, depending on whether the drum must be turned in the direction of the opening rotation of the handle 103 of the breaker or in the direction of the closing rotation of the handle 103.
- Figures 4-9 illustrate the steps of closing and opening the circuit breaker by the device according to the present invention; the position of the handle 103 is shown in broken lines.
- Figures 4-6 show the steps of closing the circuit breaker.
- Figure 4 shows the position of the mechanism of the device that corresponds to the position in which the breaker is open.
- the end 16 of the first oscillating member 12 is in a lower position than the end of the bar 7, while the end 17 of the second oscillating member 13 is located at the end of the bar 7.
- the bar 7 moves beyond the first oscillating member 12 and turns the drum 5 clockwise, to the closing position of the breaker, shown in Figure 5 .
- Figure 6 shows the condition of the device 1 that corresponds to the condition in which the circuit breaker is closed.
- Figures 7-9 illustrate the steps of the opening of the circuit breaker.
- Figure 7 is a view of the condition of the device that corresponds to the situation in which the circuit breaker is closed. The position of the device in Figure 7 is identical to the one shown in Figure 6 .
- the end 17 of the second oscillating member 13 is in a lower position than the end of the bar 7, while the end 16 of the first oscillating member 12 is at the end of the bar 7.
- the bar 7 moves beyond the second oscillating member 13 and turns the drum 5 counter clockwise to the open position of the circuit breaker, which is visible in Figure 8 .
- Figures 10-12 are perspective views that correspond to the steps of the operations of closing the circuit breaker shown in Figures 4-6 .
- FIGS 13-15 illustrate the release mechanism of the device according to the present invention.
- the release mechanism comprises a linkage 20, which is actuated by the drum 5 and acts on a set of levers constituted by a double actuation lever 21, a tripping lever 22, a rocker lever 23 and a selection lever 24.
- the selection lever 24 acts on an indicator microswitch 25, while the rocker lever 23 acts on an open/close control microswitch 26 and on a reset control microswitch 27, that are arranged laterally adjacent to the indicator microswitch.
- the rocker lever 23 also acts on the indicator microswitch 25, as shown more clearly in Figures 19 and 20 .
- Figure 13 shows the release mechanism in the condition that corresponds to the open breaker position.
- Figure 14 shows the release mechanism in the condition that corresponds to the closed breaker position.
- Figure 15 shows the release mechanism in the condition that corresponds to the position of the breaker in the tripped condition.
- the control device 1 also comprises an actuation and indication system, which is visible in Figures 19-21 .
- Figures 13-14 also show some components of the indication system.
- the control and indication system comprises the already mentioned microswitches 25, 26 and 27 and an additional motor position microswitch 28, which is controlled by a cam provided on a disk 29 which is jointly connected for rotation to the first gear 61.
- the system comprises an indication option selector 30, which acts on the selection lever 24, which closes the indication microswitch 25.
- the selector 30 When the selector 30 is arranged in the tripped indication position, it is capable of indicating that the breaker has tripped, as shown in Figure 14 .
- the control device according to the invention also comprises a disconnection system, better viewed in Figures 16-18 .
- the disconnection system comprises a disconnection lever 31, which is pivoted in a fulcrum 32 to the casing 2 and is provided with an operating end 33 and with a control end 36.
- the operating end 33 acts, in contrast with a spring 34, on a pair of laminar contacts 35, that produce the bipolar disconnection of the circuit, i.e., both the phase and the neutral.
- the control end 36 is actuated by a manual control slider 37, which defines three operating positions of the control device, shown in Figures 16 , 17 and 18 .
- Figure 16 shows the disconnection system in the electrically closed position in which the coupled breaker 101 can be actuated both by means of the control device 1 and manually.
- Figure 17 shows the disconnection system in the electrically open position in which the coupled breaker 101 can be actuated only manually.
- Figure 18 shows the disconnection system in the electrically open and lockable position. In this position, the coupled breaker 101 cannot be actuated in any way.
- the slider 37 can be padlocked, by using a hole 38 in which the bolt of a padlock is inserted in order to prevent the slider from being movable into the operating positions.
- the action for moving the lever 37 in the lockable position causes in any case the opening of the breaker if it was not opened beforehand.
- control buttons that include, as can be seen in the diagram of Figure 21 , an opening button 39, a closing button 40 and a reset button 41.
- Figure 21 illustrates operation of the control and indication system of the device.
- control device is extremely compact: its dimensions are in fact reduced to the equivalent of just two modules, as shown schematically in Figure 3 , in which the width of a module, according to DIN standards, is designated by the reference letter M.
Landscapes
- Breakers (AREA)
- Selective Calling Equipment (AREA)
- Keying Circuit Devices (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
Description
- The present invention relates to a control device for circuit breakers.
- More particularly, the invention relates to a device for resetting automatically a residual current operated circuit breaker or another similar apparatus.
- As is known, electrical systems are provided with circuit breakers adapted to prevent a fault current from causing danger for users and for the loads connected to the electrical line. When the presence of the fault current is detected, a residual current operated circuit breaker releases the line, thus interrupting the supply of power to the load or loads arranged downstream.
- After the release of the circuit breaker, and once the correct operating conditions for the system have been restored, the residual current operated circuit breaker must be reset.
- Motorized devices are known which are adapted to reset a circuit breaker or to release it by means of a remote control.
- The prior art devices generally include a motor with a double winding, which is capable of rotating an actuation mechanism provided with a worm screw, in one direction or in the other depending on whether it is necessary to close or open the circuit breaker.
- The resetting devices are generally contained in a casing, which can be associated with the circuit breaker so that the actuation mechanism acts on the drum of the handle of the circuit breaker.
- The aim of the present invention is to provide a control device for circuit breakers which is improved functionally and constructively with respect to the devices of the prior art.
- An object of the invention is to provide a control device that is much smaller than the prior art devices having an equal performance.
- Another object of the invention is to provide a device that is significantly cheaper from the production standpoint.
- Another object is to provide a device which, by virtue of its particular constructive characteristics, is capable of ensuring the greatest assurances of reliability and safety in use.
- This aim and these and other objects, which will become better apparent hereinafter, are achieved by a control device for circuit breakers, comprising a casing, which can be coupled to an electrical device, such as a circuit breaker provided with a control for opening and closing the contacts, said casing comprising a drum, which is kinematically associated with said control for opening and closing the contacts of said circuit breaker; characterized in that said control device comprises a single electric motor which actuates a gear train by means of a worm screw, said gear train being adapted to turn said drum in one direction or the other by means of a rotation switching means.
- Further characteristics and advantages will become better apparent from the description of preferred but not exclusive embodiments of the invention, illustrated by way of non-limiting example in the accompanying drawings, wherein:
-
Figure 1 is a perspective view of the control device according to the invention, coupled to a residual current operated circuit breaker; -
Figure 2 is an exploded perspective view of the control device and of the residual current operated circuit breaker of the preceding figure; -
Figure 3 is a top plan view of the control device coupled to the residual current operated circuit breaker of the preceding figures; -
Figure 4 is a partially sectional side view of the control device according to the present invention, illustrating the open position of the closure control; -
Figure 5 is a view, similar to the preceding one, illustrating the step for closing the closing control; -
Figure 6 is a view, similar to the preceding one, illustrating the closed position of the closing control; -
Figure 7 is a view, similar to the preceding one, illustrating the closed position of the opening control; -
Figure 8 is a view, similar to the preceding one, illustrating the opening of the opening control; -
Figure 9 is a view, similar to the preceding one, illustrating the open position of the opening control; -
Figure 10 is a cutout perspective view of the control device according to the present invention, illustrating the open position of the closing control; -
Figure 11 is a view, similar to the preceding one, illustrating the step of closing the opening control; -
Figure 12 is a view, similar to the preceding one, illustrating the closed position of the closing control; -
Figure 13 is a longitudinally sectional side view, seen from the opposite side with respect to the preceding figures, of the control device according to the present invention, illustrating the release mechanism in the open condition; -
Figure 14 is a view, similar to the preceding one, illustrating the release mechanism in the closed condition; -
Figure 15 is a view, similar to the preceding one, illustrating the release mechanism in the tripped condition; -
Figure 16 is a longitudinally sectional side view of the disconnection assembly in the electrically closed position; -
Figure 17 is a view, similar to the preceding one, illustrating the disconnection assembly in an electrically open position; -
Figure 18 is a view, similar to the preceding one, illustrating the disconnection assembly in the electrically open and lockable position; -
Figure 19 is a cutout perspective view of the control device according to the present invention, illustrating the control and indication system with the release mechanism in the closed condition; -
Figure 20 is a view, similar to the preceding figure, illustrating the control and indication system with the release mechanism in the tripped condition; -
Figure 21 is an electrical diagram of the control and indication system of the control device according to the invention. - With reference to the cited figures, the device according to the invention, generally designated by the
reference numeral 1, comprises acasing 2, which has the classic standardized shape and forms, at therear face 3, a means for coupling to other apparatuses associated with an omega rail (not shown), according to DIN standards. - At its front face the
casing 2 has aprotrusion 4 in which anactuation drum 5 is arranged. - The
device 1 is studied to be arranged laterally adjacent to other modules and in particular to acircuit breaker 101. - The mechanism of the reset device is connected to the mechanism of the
circuit breaker 101 by means of abar 102, which has a triangular cross-section and constitutes the rotation axis of thedrum 5, so that the rotation of thedrum 5 corresponds exactly to he rotation of the drum of thecircuit breaker 101, which is provided with the usual external actuation lever orhandle 103. - The
device 1 according to the present invention has theactuation drum 5 associated with agear train 6 by means of abar 7. - The
bar 7 has an end which is pivoted to thefirst gear 61 of thegear train 6 and the other end which can slide in aslot 8 of a member which is rotatably associated with thedrum 5. - The
gear train 6 draws its motion from aworm screw 9 driven by anelectric motor 10, namely a single-phase synchronous motor. - The system includes a one-way or freewheeling bearing, which allows the worm screw to rotate in a single direction. The single-phase synchronous motor might in fact start rotating in either direction, but it is preferable for the gear train to always rotate in a preset direction in order to better exploit the torque of the motor.
- The
gear train 6 moves thebar 7, which turns thedrum 5 alternately in one direction or the other, by the action of two contoured oscillating members, respectively designated by thereference numerals - The first oscillating
member 12 is pivoted in an upper region in afulcrum 14 and has abevelled end 16, which is pushed toward the axis of thedrum 5 by acontrast spring 18. - The second oscillating
member 13 is pivoted in an upper region in afulcrum 15 and has abevelled end 17, which is pushed toward the axis of thedrum 5 by thecontrast spring 18. - The contoured oscillating
members bar 7 so that it moves in one direction or in the opposite direction, depending on whether the drum must be turned in the direction of the opening rotation of thehandle 103 of the breaker or in the direction of the closing rotation of thehandle 103. -
Figures 4-9 illustrate the steps of closing and opening the circuit breaker by the device according to the present invention; the position of thehandle 103 is shown in broken lines. -
Figures 4-6 show the steps of closing the circuit breaker. -
Figure 4 shows the position of the mechanism of the device that corresponds to the position in which the breaker is open. - As can be seen in
Figure 4 , theend 16 of the first oscillatingmember 12 is in a lower position than the end of thebar 7, while theend 17 of the second oscillatingmember 13 is located at the end of thebar 7. - When the
first gear 61 turns, the upper end of thebar 7 moves to the left, with reference toFigure 4 , because theend 17 of the second oscillating member prevents its movement to the right. - The
bar 7 moves beyond the first oscillatingmember 12 and turns thedrum 5 clockwise, to the closing position of the breaker, shown inFigure 5 . - As the rotation of the
first gear 61 continues, thedrum 5 remains stationary, while the upper end of thebar 7 slides along theslot 8 and reaches the position shown inFigure 6 , in which the position of theslot 8 and of theoscillating members -
Figure 6 shows the condition of thedevice 1 that corresponds to the condition in which the circuit breaker is closed. -
Figures 7-9 illustrate the steps of the opening of the circuit breaker. -
Figure 7 is a view of the condition of the device that corresponds to the situation in which the circuit breaker is closed. The position of the device inFigure 7 is identical to the one shown inFigure 6 . - As can be seen in
Figure 7 , theend 17 of the second oscillatingmember 13 is in a lower position than the end of thebar 7, while theend 16 of the first oscillatingmember 12 is at the end of thebar 7. - When the
first gear 61 turns, the upper end of thebar 7 moves to the right, with reference toFigure 7 , because theend 16 of the first oscillating member prevents its movement to the left. - The
bar 7 moves beyond the second oscillatingmember 13 and turns thedrum 5 counter clockwise to the open position of the circuit breaker, which is visible inFigure 8 . - As the rotation of the
first gear 61 continues, thedrum 5 remains stationary, while the upper end of thebar 7 slides along theslot 8 and reaches the position shown inFigure 9 , in which the position of theslot 8 and of theoscillating members - The condition of the device in
Figure 9 is identical to the condition shown inFigure 4 . -
Figures 10-12 are perspective views that correspond to the steps of the operations of closing the circuit breaker shown inFigures 4-6 . -
Figures 13-15 illustrate the release mechanism of the device according to the present invention. - The release mechanism comprises a
linkage 20, which is actuated by thedrum 5 and acts on a set of levers constituted by adouble actuation lever 21, a trippinglever 22, arocker lever 23 and aselection lever 24. - The
selection lever 24 acts on anindicator microswitch 25, while therocker lever 23 acts on an open/close control microswitch 26 and on areset control microswitch 27, that are arranged laterally adjacent to the indicator microswitch. Therocker lever 23 also acts on theindicator microswitch 25, as shown more clearly inFigures 19 and20 . -
Figure 13 shows the release mechanism in the condition that corresponds to the open breaker position. -
Figure 14 shows the release mechanism in the condition that corresponds to the closed breaker position. -
Figure 15 shows the release mechanism in the condition that corresponds to the position of the breaker in the tripped condition. - The
control device 1 also comprises an actuation and indication system, which is visible inFigures 19-21 .Figures 13-14 also show some components of the indication system. - The control and indication system comprises the already mentioned
microswitches motor position microswitch 28, which is controlled by a cam provided on adisk 29 which is jointly connected for rotation to thefirst gear 61. - The system comprises an
indication option selector 30, which acts on theselection lever 24, which closes theindication microswitch 25. - When the
selector 30 is arranged in the tripped indication position, it is capable of indicating that the breaker has tripped, as shown inFigure 14 . - The control device according to the invention also comprises a disconnection system, better viewed in
Figures 16-18 . - The disconnection system comprises a
disconnection lever 31, which is pivoted in a fulcrum 32 to thecasing 2 and is provided with an operatingend 33 and with acontrol end 36. - The operating
end 33 acts, in contrast with aspring 34, on a pair oflaminar contacts 35, that produce the bipolar disconnection of the circuit, i.e., both the phase and the neutral. - The
control end 36 is actuated by amanual control slider 37, which defines three operating positions of the control device, shown inFigures 16 ,17 and18 . -
Figure 16 shows the disconnection system in the electrically closed position in which the coupledbreaker 101 can be actuated both by means of thecontrol device 1 and manually. -
Figure 17 shows the disconnection system in the electrically open position in which the coupledbreaker 101 can be actuated only manually. -
Figure 18 shows the disconnection system in the electrically open and lockable position. In this position, the coupledbreaker 101 cannot be actuated in any way. Theslider 37 can be padlocked, by using ahole 38 in which the bolt of a padlock is inserted in order to prevent the slider from being movable into the operating positions. - The action for moving the
lever 37 in the lockable position causes in any case the opening of the breaker if it was not opened beforehand. - The operation of the control device according to the present invention is controlled by means of control buttons that include, as can be seen in the diagram of
Figure 21 , anopening button 39, aclosing button 40 and areset button 41. -
Figure 21 illustrates operation of the control and indication system of the device. - In practice it has been found that the invention achieves the intended aim and objects.
- The control device according to the present invention is extremely compact: its dimensions are in fact reduced to the equivalent of just two modules, as shown schematically in
Figure 3 , in which the width of a module, according to DIN standards, is designated by the reference letter M. - Such small dimensions have been achieved first of all by virtue of the adoption of a single motor, of a winding, and of the particular actuation mechanism, which allows reversal of the direction of rotation of the actuation drum.
- This application claims the priority of Italian Patent Application No.
M12008A001009, filed on June 3, 2008
Claims (17)
- A control device for circuit breakers, comprising a casing, which can be coupled to an electrical device, such as a circuit breaker provided with a control for opening and closing the contacts, said casing comprising a drum, which is kinematically associated with said control for opening and closing the contacts of said circuit breaker; characterized in that said control device comprises a single electric motor which actuates a gear train by means of a worm screw, said gear train being adapted to turn said drum in one direction or the other by means of a rotation switching means.
- The control device according to claim 1, characterized in that it comprises a release mechanism, which defines at least three distinct conditions: a condition that corresponds to the open breaker position, a condition that corresponds to the closed breaker position, and a condition that corresponds to the position in which the breaker is in the tripped condition.
- The control device according to claim 1 or 2, characterized in that it comprises a control and indication system.
- The control device according to one or more of the preceding claims, characterized in that it comprises a disconnection system, which defines at least three operating positions of the control device: an electrically closed position, in which said breaker can be actuated both by the control device and manually; an electrically open position, in which said breaker can be actuated only manually; an electrically open and lockable position, in which said breaker cannot be actuated in any way.
- The control device according to one or more of the preceding claims, characterized in the said casing has a standardized shape, according to DIN standards, and forms, at a rear face, a means for coupling to other devices which are associated with an omega rail.
- The control device according to one or more of the preceding claims, characterized in that said casing has, at the front face, a protrusion in which said actuation drum is positioned.
- The control device according to one or more of the preceding claims, characterized in that said actuation drum is connected to the mechanism of the breaker by means of a bar which has a triangular cross-section and constitutes the rotation axis of said drum, so that the rotation of the drum corresponds exactly to the rotation of a drum of the breaker which is provided with an external actuation lever or handle.
- The control device according to one or more of the preceding claims, characterized in that said actuation drum is associated with said gear train by means of a bar; said bar has a first end which is pivoted to a first gear of said gear train and a second end which can slide within a slot of a member which is jointly connected to said drum.
- The control device according to one or more of the preceding claims, characterized in that said gear train draws motion from said worm screw actuated by said electric motor constituted by a single-phase synchronous motor.
- The control device according to one or more of the preceding claims, characterized in that it comprises a one-way or freewheel bearing, which allows the worm screw to turn in a single direction.
- The control device according to one or more of the preceding claims, characterized in that said gear train moves said bar, which turns said drum alternately in one direction or the other, by the action of two contoured oscillating members; a first oscillating member is pivoted in an upper region in a fulcrum and has a bevelled end, which is pushed in the direction of the axis of the drum by a contrast spring; a second oscillating member is pivoted in an upper region in a fulcrum and has a bevelled end which is pushed in the direction of the axis of said drum by a contrast spring; said contoured oscillating members act on said second end of the bar so that it moves in one direction or in the opposite direction, depending on whether said drum has to be turned in the direction of rotation of opening the handle of the breaker or in the direction of rotation of closing said handle.
- The control device according to one or more of the preceding claims, characterized in that said release mechanism comprises a linkage, which is actuated by said drum and acts on a set of levers constituted by a double actuation lever, a tripping lever, a rocker lever and a selection lever; said selection lever acts on an indication microswitch; said rocker lever acts on an open/close control microswitch and on a reset control microswitch, that are laterally adjacent to said indication microswitch; said rocker lever also acts on said indication microswitch.
- The control device according to one or more of the preceding claims, characterized in that said control and indication system comprises said open/close control, reset control and indication microswitches and also comprises a motor position microswitch, which is actuated by a cam provided on a disk which is jointly connected to said first gear for rotation; said control and indication system comprises an indication option selector acting on said selection lever which closes said indication microswitch, in the condition in which the breaker has tripped, when the selector is arranged in the tripped indication position.
- The control device according to one or more of the preceding claims, characterized in that said disconnection system comprises a disconnection lever, which is pivoted to said casing at a fulcrum and is provided with an operating end and with an actuation end; said operating end acts, in contrast with a spring, on a pair of laminar contacts which provide the bipolar disconnection of the circuit, i.e., both the phase and the neutral.
- The control device according to one or more of the preceding claims, characterized in that said actuation end is actuated by a manual control slider, which defines said three operating positions of the control device.
- The control device according to one or more of the preceding claims, characterized in that in said electrically open and lockable position, said slider can be padlocked by using a hole within which the bolt of a padlock is inserted in order to prevent the slider from being movable into the operating positions.
- The control device according to one or more of the preceding claims, characterized in that the operation of the device is controlled by means of control buttons which comprise an opening button, a closing button and a reset button.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20081009 ITMI20081009A1 (en) | 2008-06-03 | 2008-06-03 | CONTROL DEVICE FOR SWITCHES |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2131376A1 true EP2131376A1 (en) | 2009-12-09 |
EP2131376B1 EP2131376B1 (en) | 2014-02-12 |
Family
ID=40301728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080017546 Active EP2131376B1 (en) | 2008-06-03 | 2008-10-07 | Control device for circuit breakers |
Country Status (3)
Country | Link |
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EP (1) | EP2131376B1 (en) |
ES (1) | ES2452346T3 (en) |
IT (1) | ITMI20081009A1 (en) |
Cited By (12)
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CN103325635A (en) * | 2013-06-05 | 2013-09-25 | 苏州未来电器有限公司 | Ultrathin flat type electric operating device |
CN103367060A (en) * | 2013-08-02 | 2013-10-23 | 乐清市华尊电气有限公司 | Miniature circuit breaker |
CN103367061A (en) * | 2013-08-02 | 2013-10-23 | 乐清市华尊电气有限公司 | Remote control operating mechanism of miniature circuit breaker |
CN103400707A (en) * | 2013-08-02 | 2013-11-20 | 乐清市华尊电气有限公司 | Small type low-voltage switch |
CN103400708A (en) * | 2013-08-02 | 2013-11-20 | 乐清市华尊电气有限公司 | Miniature low-voltage switch |
CN103996576A (en) * | 2014-05-13 | 2014-08-20 | 苏州未来电器有限公司 | Electric operating mechanism with hidden protective baffle and protective baffle |
CN103996578A (en) * | 2014-05-13 | 2014-08-20 | 苏州未来电器有限公司 | Two-end supported transmission structure |
ITUB20152631A1 (en) * | 2015-07-30 | 2017-01-30 | Gewiss Spa | CONTROL DEVICE FOR SWITCHES |
CN107546076A (en) * | 2017-10-19 | 2018-01-05 | 浙江凯发电气有限公司 | A kind of automatic switching off/on device of miniature circuit breaker |
CN107564775A (en) * | 2017-10-19 | 2018-01-09 | 浙江凯发电气有限公司 | A kind of operating mechanism with detection switch sensor |
CN107833808A (en) * | 2017-11-13 | 2018-03-23 | 宏秀电气有限公司 | Automatic reclosing drive mechanism |
WO2021208492A1 (en) * | 2020-04-13 | 2021-10-21 | 浙江正泰电器股份有限公司 | Circuit breaker |
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EP1870919A1 (en) * | 2006-06-22 | 2007-12-26 | ABB Service S.r.l | Automatic reset device for a low voltage circuit breaker |
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2008
- 2008-06-03 IT ITMI20081009 patent/ITMI20081009A1/en unknown
- 2008-10-07 EP EP20080017546 patent/EP2131376B1/en active Active
- 2008-10-07 ES ES08017546T patent/ES2452346T3/en active Active
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US3559121A (en) * | 1969-03-03 | 1971-01-26 | Gen Electric | Motor-driven operating mechanism for circuit breaker |
EP0572970A1 (en) * | 1992-06-02 | 1993-12-08 | Mitsubishi Denki Kabushiki Kaisha | Electric operating device for circuit breaker |
US6531938B1 (en) | 2000-11-10 | 2003-03-11 | Carling Technologies | Remote operated circuit breaker module |
DE102005024270B3 (en) * | 2005-05-27 | 2006-10-19 | Ellenberger & Poensgen Gmbh | Device for remote actuation of circuit breaker manual actuator has drive mechanism actuated when lever moved manually from one end position to the other to transfer gear mechanism from one end position to the other |
EP1870919A1 (en) * | 2006-06-22 | 2007-12-26 | ABB Service S.r.l | Automatic reset device for a low voltage circuit breaker |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103325635A (en) * | 2013-06-05 | 2013-09-25 | 苏州未来电器有限公司 | Ultrathin flat type electric operating device |
CN103367060A (en) * | 2013-08-02 | 2013-10-23 | 乐清市华尊电气有限公司 | Miniature circuit breaker |
CN103367061A (en) * | 2013-08-02 | 2013-10-23 | 乐清市华尊电气有限公司 | Remote control operating mechanism of miniature circuit breaker |
CN103400707A (en) * | 2013-08-02 | 2013-11-20 | 乐清市华尊电气有限公司 | Small type low-voltage switch |
CN103400708A (en) * | 2013-08-02 | 2013-11-20 | 乐清市华尊电气有限公司 | Miniature low-voltage switch |
CN103400707B (en) * | 2013-08-02 | 2016-11-23 | 国家电网公司 | A kind of Miniature low-voltage switch |
CN103400708B (en) * | 2013-08-02 | 2016-08-10 | 环宇集团浙江高科有限公司 | Miniature low-voltage switch |
CN103367060B (en) * | 2013-08-02 | 2016-02-03 | 乐清市华尊电气有限公司 | Miniature circuit breaker |
CN103367061B (en) * | 2013-08-02 | 2016-02-03 | 乐清市华尊电气有限公司 | A kind of remote control operation mechanism of miniature circuit breaker |
CN103996578B (en) * | 2014-05-13 | 2016-04-13 | 苏州未来电器股份有限公司 | The drive mechanism that a kind of two ends support |
CN103996576B (en) * | 2014-05-13 | 2016-04-13 | 苏州未来电器股份有限公司 | Motor-operating mechanism with concealed protective baffle plate and protective baffle plate |
CN103996578A (en) * | 2014-05-13 | 2014-08-20 | 苏州未来电器有限公司 | Two-end supported transmission structure |
CN103996576A (en) * | 2014-05-13 | 2014-08-20 | 苏州未来电器有限公司 | Electric operating mechanism with hidden protective baffle and protective baffle |
ITUB20152631A1 (en) * | 2015-07-30 | 2017-01-30 | Gewiss Spa | CONTROL DEVICE FOR SWITCHES |
EP3125267A1 (en) | 2015-07-30 | 2017-02-01 | GEWISS S.p.A. | Control device for circuit breakers |
CN106409544A (en) * | 2015-07-30 | 2017-02-15 | 哥维斯股份公司 | Control device used for circuit breaker |
CN107546076A (en) * | 2017-10-19 | 2018-01-05 | 浙江凯发电气有限公司 | A kind of automatic switching off/on device of miniature circuit breaker |
CN107564775A (en) * | 2017-10-19 | 2018-01-09 | 浙江凯发电气有限公司 | A kind of operating mechanism with detection switch sensor |
CN107546076B (en) * | 2017-10-19 | 2020-09-11 | 长城电器集团浙江科技有限公司 | Automatic switching-on and switching-off device of miniature circuit breaker |
CN107833808A (en) * | 2017-11-13 | 2018-03-23 | 宏秀电气有限公司 | Automatic reclosing drive mechanism |
WO2021208492A1 (en) * | 2020-04-13 | 2021-10-21 | 浙江正泰电器股份有限公司 | Circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
EP2131376B1 (en) | 2014-02-12 |
ES2452346T3 (en) | 2014-04-01 |
ITMI20081009A1 (en) | 2009-12-04 |
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