DE212012000282U1 - Outdoor vacuum circuit breaker - Google Patents

Abstract

Outdoor vacuum circuit breaker, with 1.1 a control box (1), a spring action mechanism, three polar columns (2) and three separate each mounted on the three pole columns (2) current transformer (3), wherein 1.2.1 the aforementioned three polar columns (2) firmly on Control box (1) are mounted and 1.2.2 the spring actuating mechanism inside the control box (1) is provided; 1.3.1 the three pole columns (2) each have a connecting rod (4) used to control the vacuum unloading chamber operation, wherein: 1.3.2 the three connecting rods (4) are all connected to the spring actuating mechanism; 1.4.1 the spring actuating mechanism consists of a device frame (5), an operating device mounted on the device frame (5) and locking device and release device, and 1.4.2 the operating device consists of a storage spring (6), a return spring (7), a moving contact spring ( 8), a cam wheel (9) and four parallel connecting rods composed; 1.5 the four parallel connecting rods are a first equipment rack bar (10), a second equipment rack bar (11), a first connecting bar (12), a supporting stand (13), a second connecting bar (14), and a third connecting bar (15) wherein 1.5.1 the second connecting rod (14) can be used to form a connecting rod extreme position condition together with the first equipment frame rod (10) and the third connecting rod (15) can be used together with the second equipment frame rod (14). 11) to form a tie rod extreme position condition; 1.6 is mounted on the first connecting rod (12) a roller (16), said you role (16) on the first cam wheel (9) abuts or is removed; 1.7, the lengths of the second connecting rod (14) and the third connecting rod (15) are identical, and both connecting rods (14, 15) are arranged parallel to each other; 1.8.1 the one end of the second connecting rod (14), the one end of the first device frame rod (10) and the one end of the first connecting rod (12) are each hingedly connected to the first bolt (17) and 1.8.2 one end the third connecting rod (15) having one end of the second equipment rack bar (11) and the other end of the first connecting bar (12) hinged to the second bolt (18), respectively; 1.9 the other end of the second connecting rod (14) and the third connecting rod (15) are both pivotally connected to the supporting frame (13); ...

Description

Field of the invention

The present invention relates to a power plant, specifically to an outdoor vacuum circuit breaker.

State of the art

Outdoor vacuum circuit breakers are generally used in the process of transport and distribution of secondary electrical currents. Conventional outdoor vacuum circuit breakers include a control box, a spring action mechanism, three pole columns, and three each separately provided on the three pole columns current transformer; wherein the outer part of said control box also has a Einschalthandhebel, a display switch and a closing lever, all of which pass through a connecting shaft, the housing body and the spring actuating mechanism of the housing body; while the three poles are fixedly mounted on the control box and said spring action mechanism is provided in the control box; the three pole posts all have a connecting rod used to control the vacuum unloading chamber operation, said three connecting rods all communicating with the spring actuating mechanism. Prior art spring action mechanisms are composed of an operating device as well as a latch and a release device. Said locking device and release device consist of a return spring, a slider and a pivot arm balanced with the slider, said output shaft being connected to the pivoting arm. As the swing arm vibrates, it stops the movement of the slider and simultaneously drives the action of the return spring, and when it reaches a certain position, the slider is returned to its original position by the return spring and a lock is made. Upon release, the applied force pullingly moves the slider, overcoming the action exerted by the return spring, and upon reaching a particular position, the slider and pivot arm separate, returning the pivot arm to its original position. Outdoor vacuum circuit breakers having the structure described above have the following weak points in actual operation: 1. In the conventional type spring action mechanism, only a 1-out-of-4 tie rod mechanism is used to realize the functionality of the spring action mechanism; Although the structure is simple, it does not itself have a force-saving mechanism and is based primarily on the force arm obtained from the reinforcement of the elastic stiffness of the accumulator spring, the enlargement of the cam wheel and the extension of the 1-out-of-4 connecting rod mechanism, around the target to achieve the saving of power. Not only does this mean that the volume of the spring action mechanism is relatively large, but also that the structure is not compact and the control operations are frequent. In addition, increasing the spring action mechanism causes the spacing of the three pole pillars to increase, which in turn results in the overall volume of the outdoor vacuum circuit breaker becoming relatively large. 2. The fact that in the use process, the locking device and release device of this type of construction must all overcome a spring resistance, the operation is relatively difficult. And when releasing, it is because, because the swing arm has a very large rebound force, the slider and swing arm wear out easily and failure of the lock device and release device occurs. As a result, the operational reliability of the spring action mechanism of the conventional art is relatively poor. From the foregoing, it will thus be seen that in open-air vacuum circuit breakers of the present state of the art, the volume is large, the design is not compact, the control operations are frequent, and the operational reliability is poor.

Object of the invention

The technical problems to be solved by the present invention are the above-mentioned shortcomings of the current state of the art. To solve these problems in the present invention, it provides a kind of outdoor vacuum circuit breaker whose structure is simple, requires less control, and has high safety reliability and operational reliability.

The solution of the present invention is to provide a kind of outdoor vacuum circuit breaker comprising a control box, a spring action mechanism, three pole columns and three separate current transformers mounted on the three pole columns, said three pole columns being fixedly mounted to the control box and said spring actuating mechanism inside the control box is provided; the three pole columns all have a connecting rod used to control the vacuum unloading chamber operation, said three connecting rods all being connected to the spring actuating mechanism; the spring actuating mechanism consists of a device frame, an operating device mounted on the frame, and locking device and release device; the Operating device is composed of a storage spring, a return spring, a moving contact spring, a cam and four parallel connecting rods, wherein the four parallel connecting rods to a first equipment rack, a second equipment rack, a first connecting rod, a support frame, a second connecting rod, the can be used to form a connecting rod extreme position condition together with the first equipment rack, and a third connecting rod which can be used to form together with the second equipment rack bar a connecting rod extreme position state, is; a roller is mounted on the first connecting rod, said roller being in contact with or removed from the cam wheel; the lengths of the second connecting rod and the third connecting rod correspond to each other, they are also parallel to each other; the one end of the second connecting rod, the one end of the first equipment rack, and the one end of the first connecting rod are all hingedly connected to the first bolt, and the one end of the third connecting rod, the one end of the second equipment rack, and the other end of the first connecting rod are all hingedly connected to the second bolt; the other end of the second connecting rod and the third connecting rod are both pivotally connected to the scaffold; the return spring and the Bewegkontaktfeder both lie at one end to the scaffold, and the return spring abuts with its other end to the device frame, and the other end of the Bewegkontaktfeder abuts the moving contact; Locking device and release device include a pivot arm, a first shaft and a pivot plate, which is used in conjunction with a cam wheel; wherein the middle part of the aforementioned swing arm is rotatably connected to the apparatus frame, and the one end of the aforementioned swing arm is hinged to an output shaft, the other end of the aforementioned swing arm has a bent block; said first shaft is rotatably connected to the device frame; the inner end of the aforesaid second shaft has on the circular surface a matching with the bent block Begrenzungsnut; the middle part of said pivot plate is fixed to the first shaft; said cam wheel is attached to the actuating shaft; and a side of the aforementioned pivot plate is provided directly above the cam wheel.

The central portion of the aforesaid pivot arm is rotatably connected to the apparatus frame, which means that a second shaft is rotatably connected to said apparatus frame, said second shaft being rotatably connected to the central portion of the pivot arm.

The other end of the aforementioned pivot plate is provided directly under the second shaft.

At said device frame also a limit shaft is provided, which serves to narrow the position of the pivot arm, while said arm adapted to the limit wave arc groove is present, said boundary wave can lie in the interior of the arc groove.

The said limit shaft is provided at one end of the pivot arm, which is located in the vicinity of the curved block.

The said current transformer is an outdoor plug-in type current transformer.

In said pole column is a tightly sealed column of poles.

The case body of said control box is a sealed case body.

• 1. Die vorliegende Erfindung verwendet vier umgekehrte Verbindungsstangen als Kraftsparaufbau sowie als direkte Energiespeicherkonstruktion, wobei die Merkmale der Endposition der Verbindungsstangen genutzt werden, sodass in der Nähe der Endposition, in der nämlich die Bewegung nahe bei null ist, wobei die sich hin- und herbewegenden Bewegungsteile die zweite Verbindungsstange sowie die dritte Verbindungsstange meinen, wobei die ursprünglichen Bewegungsteile die der zweiten Verbindungsstange und dritten Verbindungsstange entsprechenden erste Gerätegestellstange und zweite Gerätegestellstange sind; aus diesem Grund ist es bei der vorliegenden Erfindung so, dass bei einer Annäherung der zweiten Verbindungsstange und dritten Verbindungsstange an den Endpositionszustand recht wenig Kraft gebraucht wird, um einen Antrieb der Bewegung der zweiten Verbindungsstange und dritten Verbindungsstange vorzunehmen; gleichzeitig kann die von der zweiten Verbindungsstange sowie dritten Verbindungsstange auf das Stützgerüst andererseits sehr groß sein, wodurch die Anforderung des Designs für das Anschalten; dies bedeutet direkt, dass die Härte der Speicherfeder relativ gering sein kann und die Ausmaße entsprechend verkleinert sind, wodurch das Stromsparziel erreicht wird. Auf diese Weise wird nicht nur dafür gesorgt, dass das Volumen des Federbetätigungsmechanismus relativ klein und der Aufbau kompakt ist sowie nicht allzu viele Bedienvorgänge erforderlich sind, auch wird durch die Verkleinerung des Federbetätigungsmechanismus eine Verringerung der Abstände bei den drei Polsäulen erreicht. Daher weist der gesamte Freiluft-Vakuumtrennschalter ein geringeres Volumen auf.
• 2. Gleichzeitig müssen bei der vorliegenden Erfindung Verriegelungsvorrichtung und Freigabevorrichtung nicht die Wirkung des Federwiderstands überwinden. Und durch die Nutzung eines Nockenrades sowie einer Ausgangswelle zum Antrieb der Bewegung von Verriegelungsvorrichtung und Freigabevorrichtung insgesamt ist es bei der Freigabe so, dass man nur ganz leicht mit der Hand die erste Welle berühren muss. Daher ist die Bedienung des Freiluft-Vakuumtrennschalters der vorliegenden Erfindung ausgesprochen einfach. Außerdem kommt es durch die fehlende Berührung zwischen gebogenem Block sowie Begrenzungsnut bei der Freigabe nicht zu Verschleißproblemen und deshalb gibt es keine Ausfallproblematik bei Verriegelungsvorrichtung und Freigabevorrichtung.

By employing the above construction, the present invention has the following advantages over conventional technology:

• 1. The present invention uses four inverted connecting rods as a force-saving structure as well as a direct energy storage construction, utilizing the characteristics of the end position of the connecting rods so that near the end position where the movement is close to zero, with the reciprocating ones Movement parts mean the second connecting rod and the third connecting rod, wherein the original moving parts are the first device frame rod and second equipment frame rod corresponding to the second connecting rod and the third connecting rod; for this reason, in the present invention, when approaching the second connecting rod and the third connecting rod to the end position state, little force is needed to drive the second connecting rod and the third connecting rod; at the same time, on the other hand, the distance from the second connecting rod and the third connecting rod to the scaffold can be very large, whereby the design requirement for switching on; this means directly that the hardness of the memory spring can be relatively low and the dimensions are reduced accordingly, whereby the power savings target is achieved. In this way, it is not only ensured that the volume of the spring action mechanism is relatively small and the structure is compact and not too many operations are required, also by reducing the spring actuation mechanism, a reduction in the distances is achieved in the three polar columns. Therefore, the entire outdoor vacuum circuit breaker has a smaller volume.
• 2. At the same time in the present invention locking device and release device need not overcome the effect of spring resistance. And by the use of a cam wheel and an output shaft to drive the movement of locking device and release device in total, it is in the release so that you only have to touch the first wave with your hand very easily. Therefore, the operation of the outdoor vacuum circuit breaker of the present invention is extremely simple. In addition, there is no wear problems due to the lack of contact between the curved block and the limiting groove during release, and therefore there is no problem of failure in the locking device and release device.

As an improvement, the other end of said pivot plate is provided directly below the second shaft; this is advantageous for the positional limitation of the pivot plate to ensure the operational reliability of the locking device and the release device.

As an improvement, a limit shaft is also provided on said device frame, which serves to limit the position of the pivot arm, wherein said limit shaft can rest inside the arc groove, while the use of a limiting groove is practically in relation to performing relatively large restrictions of the limiting shaft , This increases the operational reliability of the locking device and the release device.

As an improvement, said current transformer is an outdoor plug-in type current transformer; Not only is this convenient to install, it also benefits the improvement in the generation efficiency of the entire outdoor vacuum circuit breaker.

As an improvement, said pole posts are tightly sealed pole posts in terms of pressure resistance, heat resistance and buckling strength, demonstrating operational reliability in an aggressive vacuum-discharge chamber.

Brief description of the drawings

1 Fig. 10 is a front view of the outdoor vacuum circuit breaker of the present invention.

2 FIG. 10 is a cross-sectional view of the outdoor vacuum circuit breaker of the present invention. FIG.

3 FIG. 13 is a perspective view of the low power operating device of the present invention. FIG.

4 Fig. 10 is a front view of the low power operating device of the present invention.

5 Fig. 10 is a plan view of the low power operating device of the present invention.

6 Fig. 10 is a sectional perspective of the low power operating device of the present invention.

7 is a schematic structural representation of the first position of the spring actuating mechanism.

8th is a schematic structural representation of the second position of the spring actuating mechanism.

Description of the preferred embodiments

The following concrete implementation examples in combination with the attached figures serve to further explain the present invention.

As the 1 . 2 . 3 . 4 . 5 . 6 . 7 and 8th illustrate, the present invention is a type of outdoor vacuum circuit breaker, the control box 1 , a spring action mechanism, three pole pillars 2 and three each separate at the three poles 2 mounted current transformers 3 includes, wherein the outer part of said control box 1 still over a Einschalthandhebel 31 , an ad switch 32 as well as a closing lever 25 features; said switch-on hand lever 31 , Indicator switch 32 as well as closing lever 25 are all by means of the connecting shaft through the housing body of the control box 1 connected to the spring actuating mechanism, wherein it is in the present implementation example so that the connecting shaft of the Einschalthandhebels 31 through the housing body with the actuating shaft 27 , the connecting shaft of the indicator switch 32 through the housing with the first bolt 17 and the connecting shaft of the closing lever 25 through the housing body with the first shaft 21 connected is.

Said three poles 2 are stuck at the control box 1 mounted, wherein it is in the present implementation example is that the three pole columns 2 by tightening the control box 1 are attached; the spring action mechanism is inside the control box 1 provided, and the aforementioned three Polsäulen 2 all have a connecting rod used to control the vacuum unloading process 4 , said three connecting rods 4 are all connected to the spring actuating mechanism, in the present implementation example, the three connecting rods 4 at their end parts in each case with the moving contact 19 connected.

Said spring action mechanism consists of a device frame 5 , one on the equipment rack 5 mounted operating device and a locking device and release device; the operating device includes a memory spring 6 , a return spring 7 , a moving contact spring 8th , a first cam wheel 9 and four parallel tie rods; The four parallel connecting rods consist of a first equipment rack 10 , a second equipment rack 11 , a first connecting rod 12 , a scaffold 13 , a second connecting rod 14 that can be used together with the first equipment rack 10 to form a connecting rod extreme position condition, and a third connecting rod 15 that can be used together with the second equipment rack 11 to form a connecting rod extreme position condition together; on the first connecting rod 12 is a roller mounted, said roller 16 on the cam wheel 9 is present or removed from it; the lengths of the second connecting rod 14 and the third connecting rod 15 correspond to each other, they are parallel to each other; one end of the second connecting rod 14 , which is an end of the first equipment rack 10 and one end of the first connecting rod 12 are all articulated with the first bolt 17 connected, and the one end of the third connecting rod 15 The one end of the second equipment rack 11 and the other end of the first connecting rod 12 are all articulated with the second bolt 18 connected; the other end of the second connecting rod 14 and the third connecting rod 15 Both are articulated with the scaffold 13 connected; the return spring 7 and the moving contact spring 8th both lie at one end to the scaffold 13 on, the return spring 7 lies with its other end to the equipment rack 5 on, and the other end of the Bewegkontaktfeder 8th lies at the moving contact 19 at; it is in fact the case that the moving contact spring 8th through said moving contact 19 at the end pieces of the connecting rods 4 is applied.

Locking device and release device include a pivoting arm 20 , a first wave 21 and a swivel plate 22 , which in conjunction with a second cam wheel 23 is being used; wherein the middle part of the aforementioned pivot arm 20 rotatable with the device frame 5 is connected while the middle part of the swing arm 20 relative to the device frame 5 performs a left-to-right movement; one end of the aforementioned pivot arm 20 is articulated with the first bolt 17 connected, the other end is at the curved block 24 provided and said first wave 21 is rotatable with the device frame 5 connected; the inner end of the aforementioned first wave 21 indicates on the round surface one with the curved block 24 matching limit groove 26 on; the middle part of said pivot plate 22 is at the first wave 21 fixed; said cam wheel is attached to the actuating shaft; and said second cam wheel 23 is on the camshaft 27 confirmed, one side of the aforementioned pivot plate 22 is directly above the second cam wheel 23 intended.

The middle part of the aforementioned pivot arm 20 is rotatable with the device frame 5 connected, which means: With said equipment rack 5 is rotatable a second shaft 28 connected while said second 28 Shaft with the middle part of the swivel arm 20 is rotatably connected.

The other end of the aforementioned pivot plate 22 is right under the second wave 28 intended.

On said equipment rack 5 is also a border wave 29 provided, which serves to the position of the pivot arm 20 to be limited, wherein at said arm 20 one to the border wave 29 adapted arc groove 30 is present, this limit wave 29 inside the arch groove 30 can be present.

The said limit wave 29 is at one end of the swivel arm 20 provided, which is near the curved block 24 lies.

The said current transformer 3 is an outdoor plug-in type CT.

In said pole column 2 it is a tightly sealed column of poles. Said unloading chamber uses a 0.075A vacuum unloading chamber. In the case body of said control box 1 it is a sealed housing body.

When switching on, turn the switch-on lever 31 the actuating shaft 27 turned, in turn, the memory spring 6 as well as the first cam wheel 9 drives, resulting in that with respect to the entire structure with four parallel moving connecting rods, the moving contacts 19 , the first wave 21 , Return spring 7 , Moving contact spring 8th etc. are driven; when a certain position is reached by turning, the first pin drives 17 the movement of the swivel arm 20 on, which leads to that on the swivel arm 20 located curved block 24 pivots and at the boundary groove 26 bears; then the spring actuating mechanism is in a stable on state; when turning off is by a rotation of the first shaft 21 made sure that the curved block 24 and the boundary groove 26 remove each other, in which case the force of the memory spring 6 used to return to the original position.

The foregoing is an explanation of preferred embodiments of the present invention, but should not be construed as limiting the claims for protection sought. The present invention is limited not only to the listed implementation examples, but also to modifications that are possible for their constructions. All possible modifications and variations that are still within the scope of the claims of the present invention are part of the claims for protection.

LIST OF REFERENCE NUMBERS

1

 control box

2

 Pole column

3

 Power converter

4

 connecting rod

5

 equipment rack

6

 storage spring

7

 Return spring

8th

 Bewegkontaktfeder

9

 first cam wheel

10

 first equipment rack

11

 second equipment rack

12

 first connecting rod

13

 scaffold

14

 second connecting rod

15

 third connecting rod

16

 role

17

 first bolt

18

 second bolt

19

 moving contact

20

 swivel arm

21

 first wave

22

 swivel plate

23

 second cam wheel

24

 Curved block

25

 closing lever

26

 limiting groove

27

 actuating shaft

28

 second wave

29

 SSB

30

 arc groove

31

 Einschalthandhebel

32

 display switch

Claims (8)

Outdoor vacuum circuit breaker, with 1.1 a control box ( 1 ), a spring action mechanism, three polar columns ( 2 ) as well as three separate ones each at the three polar columns ( 2 ) mounted current transformers ( 3 ), where 1.2.1 the aforementioned three polar columns ( 2 ) fixed to the control box ( 1 ) and 1.2.2 the spring action mechanism inside the control box ( 1 ) is provided; 1.3.1 the three polar columns ( 2 ) in each case via a connecting rod used for checking the vacuum unloading chamber process ( 4 1.3.2 the three connecting rods ( 4 ) are all connected to the spring actuating mechanism; 1.4.1 the spring action mechanism from a device frame ( 5 ), one on the equipment rack ( 5 ) mounted operating device and locking device and release device, and 1.4.2, the operating device from a memory spring ( 6 ), a return spring ( 7 ), a moving contact spring ( 8th ), a cam wheel ( 9 ) and four parallel connecting rods; 1.5 it is the four parallel connecting rods to a first equipment rack bar ( 10 ), a second equipment rack ( 11 ), a first connecting rod ( 12 ), a scaffold ( 13 ), a second connecting rod ( 14 ), and a third connecting rod ( 15 ), 1.5.1 the second connecting rod ( 14 ) can be used together with the first equipment rack ( 10 ) to form a connecting rod extreme position condition, and the third connecting rod ( 15 ) can be used together with the second equipment rack ( 11 ) to form a connecting rod extreme position condition; 1.6 on the first connecting rod ( 12 ) a role ( 16 ), whereby you have the aforementioned role ( 16 ) on the first cam wheel ( 9 ) or is removed from it; 1.7 the lengths of the second connecting rod ( 14 ) and the third connecting rod ( 15 ) are identical, and both connecting rods ( 14 . 15 ) are arranged parallel to each other; 1.8.1 one end of the second connecting rod ( 14 ), one end of the first equipment rack ( 10 ) and the one end of the first Connecting rod ( 12 ) in each case like an articulation with the first pin ( 17 ) and 1.8.2 one end of the third connecting rod ( 15 ), one end of the second equipment rack ( 11 ) and the other end of the first connecting rod ( 12 ) in each case like an articulation with the second bolt ( 18 ) are connected; 1.9 the other end of the second connecting rod ( 14 ) and the third connecting rod ( 15 ) both hinged to the scaffold ( 13 ) are connected; 1.10.1 the return spring ( 7 ) and the moving contact spring ( 8th ) both at one end to the scaffold ( 13 ), 1.10.2 the return spring ( 7 ) with its other end on the device frame ( 5 ) and 1.10.3 the other end of the moving contact spring ( 8th ) on the moving contact ( 19 ) is present; 1.11 the aforesaid locking device and releasing device a pivoting arm ( 20 ), a first wave ( 21 ) and a pivot plate ( 22 ), 1.11.1 where the swivel plate ( 22 ) in conjunction with a cam wheel ( 23 ), 1.11.2 the middle part of the aforesaid swivel arm ( 20 ) rotatable with the device frame ( 5 ), and the one end of the aforesaid pivoting arm ( 20 ) articulated with a first bolt ( 17 ) and 1.11.3 the other end of the aforesaid swivel arm ( 20 ) over a curved block ( 24 ); 1.12 the aforementioned first wave ( 21 ) rotatable with the device frame ( 5 ) connected is; 1.13 the inner end of the mentioned first wave ( 21 ) on the round surface one with the curved block ( 24 ) matching limit groove ( 26 ) having; 1.14 the middle part of the aforementioned pivot plate ( 22 ) on the first wave ( 21 ) is fixed; 1.15 the aforesaid cam wheel ( 23 ) on the actuating shaft ( 27 ) is attached; and 1.16 one side of the aforesaid pivot plate ( 22 ) directly above the cam wheel ( 23 ) is provided. Outdoor vacuum circuit breaker according to claim 1, characterized in that the middle part of the aforementioned pivoting arm ( 20 ) rotatable with the device frame ( 5 ), wherein 2.1 is connected to the aforementioned device frame ( 5 ) rotatably a second shaft ( 28 ) rotatably connected to the middle part of the pivoting arm ( 20 ) connected is. Outdoor vacuum circuit breaker according to claim 2, characterized in that the other end of the aforesaid pivot plate ( 22 ) directly under the second wave ( 28 ) is provided. Outdoor vacuum circuit breaker according to claim 1, characterized in that on the aforementioned device frame ( 5 ) a boundary wave ( 29 ), which serves to adjust the position of the pivoting arm ( 20 ), wherein on the aforementioned swivel arm ( 20 ) one to the limit shaft ( 29 ) adapted arc groove ( 30 ), so that said boundary wave ( 30 ) inside the arc groove ( 29 ) may be present. Outdoor vacuum circuit breaker according to claim 4, characterized in that the aforesaid limit shaft ( 29 ) on one side of the swivel arm ( 20 ) on the curved block ( 24 ) is present. Outdoor vacuum circuit breaker according to claim 1, characterized in that the aforesaid current transformer ( 3 ) is an outdoor plug-in type current transformer. Outdoor vacuum circuit breaker according to claim 1, characterized in that the aforementioned polar columns ( 2 ) are tightly sealed polar columns. Outdoor vacuum circuit breaker according to claim 1, characterized in that the housing body of the aforementioned control box ( 1 ) is sealed.

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