Locking device for the manufacture of high-voltage quick-release switches

Abstract

The invention relates to a holding device (1) for holding a switchgear (2) inside a manufacturing container (4), an adapter unit (8) for being fixed to the switchgear (2), a system (50) comprising the holding device (1) and the adapter unit (8), and a method for manufacturing a switchgear (2). The holding device (1) comprises a holding unit (6) configured for holding the adapter unit (8) which can be fixed to the switchgear (2), and a switch lever (10) configured for moving the holding unit (6) inside the manufacturing container (4). The holding unit (6) has a locking mechanism (12) which can be moved between a locking position (P1) and a release position (P2) for locking the adapter unit (8). Furthermore, the holding unit (6) can be subjected to a manufacturing voltage, and the dielectric strength of the switch lever (10) is higher than the manufacturing voltage, wherein the manufacturing voltage is an electrical high voltage for manufacturing the switchgear (2).

Description

Technical Field

[0001] The present invention relates to a holding device for holding a switchgear within a manufacturing container, an adapter unit for fixing to a switchgear, a system including the holding device and the adapter unit, and a method for manufacturing a switchgear. Background Technology

[0002] In the prior art, switching devices are known, for example, in the form of vacuum switching tubes. A typical vacuum switching tube includes a fixed contact post at one end and a movable contact post at the opposite end. Inside the switching device, each of the two contact posts has a contact plate disposed opposite to it. By moving the movable contact post, different distances between the two contact plates can be adjusted to provide different switching positions of the switching device.

[0003] To achieve high dielectric strength in this type of switchgear, a forming process is typically performed after assembly. This involves first positioning the switchgear within a sealed container. During the forming process, high voltage is applied to the contact plates in different switching positions. This applied high voltage induces targeted flashovers, whose arcs melt or vaporize defects and micro-spikes on the contact plate surface. In this way, the surface quality is gradually improved until the required dielectric strength is achieved. Furthermore, the current dielectric strength of this type of switchgear can be tested by applying high voltage within a sealed test container.

[0004] In known apparatuses used to implement this manufacturing method or to perform dielectric strength testing, the different switching positions of the switching device are manually set by operators. To set the switching position, operators must remove the switching device from the manufacturing container between two forming sequences and reassemble the manufacturing apparatus accordingly. Therefore, conventional apparatuses and methods are costly in terms of manufacturing time and personnel input. Summary of the Invention

[0005] Based on the known prior art, the object of the present invention is to provide an improved holding device for holding a switch device within a manufacturing container, further to provide an adapter unit for fixing to the switch device, further to provide a system including the holding device and the adapter unit, and a method for manufacturing a switch device.

[0006] This objective is achieved by a holding device having the features of claim 1 for holding a switching device within a manufacturing container. Advantageous further configurations are derived from the dependent claims, the description, and the drawings.

[0007] Accordingly, a holding device for holding a switching device within a manufacturing container is proposed. The holding device includes a holding unit configured to hold an adapter unit that can be fixed to the switching device, and a switching lever configured to move the holding unit within the manufacturing container. The holding unit has a locking mechanism capable of moving between a locked position and a released position to lock the adapter unit. Furthermore, the holding unit can be subjected to a manufacturing voltage, and the dielectric strength of the switching lever is higher than the manufacturing voltage, wherein the manufacturing voltage is a high voltage used for manufacturing the switching device.

[0008] Specifically, the manufacturing voltage can be a high voltage used for forming and / or testing switching equipment.

[0009] Because the retaining unit is configured to hold the adapter unit that can be fixed to the switching device, and the switching lever is configured to move the retaining unit inside the manufacturing container, the switching device can be moved inside the manufacturing container by means of the switching lever. In this way, different switching positions required by the switching device can be provided in the forming process.

[0010] Because the dielectric strength of the switch lever is higher than the manufacturing voltage, the drive of the switch lever can be decoupled from the manufacturing voltage, i.e., from high voltage. Therefore, different switching positions can be provided in an automated or semi-automated manner, for example, using a switch lever electric actuator located outside the manufacturing container. This saves manufacturing time and / or manpower.

[0011] Furthermore, since the holding unit has a locking mechanism and can be subjected to manufacturing voltage, it is possible to automatically or semi-automatically introduce the switching device into the manufacturing container, fix it inside the manufacturing container, and remove the switching device from the manufacturing container.

[0012] In this context, the phrase "can be applied," such as "a component can be subjected to voltage," means that the component is substantially undamaged or not destroyed when a load is applied, particularly when a high voltage is applied in this case. In this case, the holding unit can be subjected to manufacturing voltage; that is, the holding unit is designed to withstand high voltage without suffering significant damage from the manufacturing voltage. This means, for example, that the holding unit does not have any motor components that could be damaged by the high voltage required for the process.

[0013] According to one embodiment, the locking mechanism can be moved to the locking position by means of spring force, magnetic force, pneumatic device or hydraulic device.

[0014] Alternatively or additionally, the locking mechanism can be moved to the release position by means of spring force, magnetic force, pneumatic device or hydraulic device.

[0015] Therefore, it is possible to provide a locking mechanism that does not have high-voltage sensitive components. In this way, it is possible to provide a locking mechanism that can be subjected to manufacturing voltage.

[0016] For example, the locking mechanism can be moved to the locked position by means of spring force, and can be moved to the released position by means of a pneumatic or hydraulic device. Furthermore, for example, the locking mechanism can also move between the locked and released positions by means of the same pneumatic or hydraulic actuator.

[0017] In particular, spring force or magnetic force can be provided by an automatically acting mechanism, thus eliminating the need for control. Furthermore, pneumatic or hydraulic devices can be controlled from an area outside the manufacturing container via piping that is insensitive to high pressure.

[0018] According to another embodiment, the retaining device can include a release mechanism having a pneumatic or hydraulic actuator. This release mechanism can be configured to move the locking mechanism to a released position. For example, the release mechanism can be configured to counteract a restoring force provided by a spring force or magnetic force to move the locking mechanism to the released position. In this way, the locking mechanism can move automatically to the locked position and can be moved to the released position by means of a single control unit for the pneumatic or hydraulic actuator. In particular, the required single control unit can be located outside the manufacturing container, within which a manufacturing voltage is applied.

[0019] According to another embodiment, the retaining device can include a spring-loaded locking element that, in a locked position, engages with the adapter unit in a form-fit manner along the main axis of the adapter unit. Specifically, the locking element can be included by a locking mechanism. The spring load on the locking element can be provided by means of a tension spring, a compression spring, or even an air spring, wherein the aforementioned pneumatic actuator can constitute the air spring.

[0020] In this case, the main axis of the adapter unit is understood as an axis centered through both ends of the adapter unit. Since the locking element can engage with the adapter unit in a form-fit manner along the main axis in the locked position, the holding unit can retain the adapter unit by means of a simple form-fit along the main axis, thereby holding the switching device. In this way, the switching device can be positioned particularly precisely and securely when moved along the main axis to provide various switching positions.

[0021] The aforementioned objective is further achieved by an adapter unit having the features of claim 6. Advantageous further configurations are derived from the dependent claims, the specification, and the drawings. Accordingly, an adapter unit for fixing to a switching device is proposed. This adapter unit is configured for fixing to the aforementioned retaining device. The adapter unit has contact elements for contacting a manufacturing voltage, wherein the manufacturing voltage is an electrical high voltage used to manufacture the switching device.

[0022] The contact element of the adapter unit can contact the corresponding contact element of the manufacturing container, thereby enabling the manufacturing voltage to be applied to the adapter unit and then to the switching device.

[0023] Because the adapter unit has this contact element, the high-voltage contact geometry can be decoupled from the contact post geometry of the switchgear. Therefore, in manufacturing containers, the same high-voltage contact geometry can be used for different types of switchgear with different contact post geometries.

[0024] According to one embodiment, the adapter unit can have a fixing element at a first end that can be fixed to a contact post of a switching device, and an adapter head at a second end opposite to the first end, so as to lock the adapter unit in a form-fitting manner in a retaining device.

[0025] According to an improved embodiment, a contact element can be disposed between the first end and the second end of the adapter unit. Thus, the geometry of the contact element can be decoupled from the geometry of the first and second ends, thereby decoupling from the geometry of the contact post and the locking mechanism of the retaining device.

[0026] The aforementioned objective is also achieved by a system having the features of claim 8. Advantageous further configurations are derived from the specification and drawings. Accordingly, a system is proposed comprising the aforementioned holding device and the aforementioned adapter unit.

[0027] Specifically, the main axis of the retaining device is aligned with the main axis of the adapter unit. This allows for particularly simple and precise movement of the switching equipment.

[0028] Furthermore, the holding unit of the holding device can have an outer contact element. Specifically, the system can include a contact member for contacting the holding unit with the adapter unit. For example, the outer contact element of the holding unit and the contact element of the adapter unit can each be configured as annular and have the same outer diameter. Furthermore, the contact member can be provided in the form of a sleeve, the inner diameter of which corresponds to the outer diameter of the contact element. In this way, the corresponding geometry for contacting the holding unit with the adapter unit can be decoupled from the geometry of the switching device. Furthermore, this also allows the adapter head and / or locking mechanism to be largely decoupled from high electrical power.

[0029] According to another embodiment, the adapter unit can have an entry ramp, and the retaining device can have an entry geometry corresponding to the entry ramp, or vice versa. That is, the retaining device can have an entry ramp, and the adapter unit can have an entry geometry corresponding to the entry ramp. Since the corresponding entry geometry corresponds to the corresponding entry ramp, the adapter unit and the retaining unit come into contact with each other during the entry process. With the aid of the corresponding entry ramp, the lateral position of the entry ramp or entry geometry relative to the entry direction can change as the entry process progresses. In this way, a locking mechanism can be provided that automatically moves the locking mechanism to a locked position during the entry of the adapter unit into the retaining unit.

[0030] For example, the adapter head can have spring-loaded locking claws with guide ramps. Therefore, the locking claws can be compressed by the guide geometry during the guide motion and, after passing through the guide geometry, automatically jump into the locking position by means of spring loading, thereby locking the adapter head in the retaining unit.

[0031] The aforementioned objective is also achieved by a method of manufacturing a switching device having the features of claim 10. Advantageous further configurations of this method are derived from the dependent claims, this specification, and the accompanying drawings.

[0032] Accordingly, a method for manufacturing switching devices using a manufacturing voltage, wherein the manufacturing voltage is a high voltage, is proposed, the method comprising the following steps: - A holding unit is provided within the manufacturing container, wherein the holding unit is capable of being subjected to the manufacturing voltage and the holding unit has a locking mechanism; - Secure the adapter unit to the switching device; - The switching device is introduced into the manufacturing container such that the adapter unit is locked in the holding unit; - A first manufacturing sequence is performed using the manufacturing voltage at the first switching position of the switching device; - The holding unit is moved within the manufacturing container by a switch lever to bring the switching device to a second switching position, wherein the dielectric strength of the switch lever is higher than the manufacturing voltage; - A second manufacturing sequence is performed using the manufacturing voltage at the second switching position of the switching device.

[0033] Furthermore, the proposed method can also include at least one of the following steps: - Release the lock between the adapter unit and the locking unit; - Remove the switchgear equipped with the adapter unit from the manufacturing container; - Separate the adapter unit from the switching device.

[0034] Specifically, manufacturing a switchgear can involve forming the switchgear, such as forming a vacuum switch tube. Furthermore, the manufacturing can also involve testing the switchgear using a high voltage, which in this case is also referred to as the manufacturing voltage.

[0035] Specifically, the holding unit provided in the method can be included by the aforementioned holding device. Furthermore, the adapter unit fixed to the switching equipment can be the aforementioned adapter unit.

[0036] According to an improved embodiment compatible with all the embodiments and examples described herein, the manufacturing voltage can be higher than 50 kV. In the current application, the manufacturing voltage can be any value in the range of 70 kV to 1200 kV.

[0037] In this case, the manufacturing voltage is understood not only as a high voltage suitable for forming processes, but also as a detection voltage by which the characteristics of the switching device, such as the dielectric strength of the switching device, can be detected. In this case, the aforementioned testing of the switching device is also considered part of the manufacturing process of the switching device. Attached Figure Description

[0038] Another preferred embodiment of the present invention will be further described in detail with reference to the following accompanying drawings. The drawings schematically illustrate: Figure 1 This is a longitudinal sectional view of a typical switchgear. Figure 2 A perspective view of a manufacturing container having a holding device for holding switchgear; Figure 3 To maintain the three-dimensional view of the device; Figure 4 A perspective view of an adapter unit for fixing to a switchgear; Figure 5 A three-dimensional sectional view of the holding unit of the holding device; Figure 6 A perspective sectional view of the system, including the retaining device and the adapter unit, in the locked position; Figure 7 for Figure 6 A three-dimensional sectional view of the system in the release position; and Figure 8 This is a schematic flowchart of a method for manufacturing switchgear. Detailed Implementation

[0039] The preferred embodiments will now be described with reference to the accompanying drawings. In different drawings, the same, similar, or functionally identical elements are represented by the same reference numerals. To avoid repetition, repeated descriptions of these elements are omitted in some cases.

[0040] Figure 1 A schematic longitudinal sectional view of a typical switchgear 2 in the form of a vacuum switching tube is shown. First and second end flanges 2a and 2b enclose the tubular base 2c of the switchgear 2. A fixed contact post 22a extends through the first end flange 2a into the interior of the switchgear 2. A movable contact post 22b is supported by a linear bearing 2d with an internal bellows, located at the second end flange 2b. Inside the switchgear, the two contact posts 22a and 22b each have contact discs 22c and 22d, which are arranged opposite each other and have a switching gap between them. Figure 1 As shown, the main axis of the switchgear corresponds to the Z-axis of the Cartesian coordinate system. By moving the movable contact post 22b along the Z-axis of the switchgear, different switching distances between the two contact plates 22c and 22d can be adjusted, thereby providing different switching positions for the switchgear 2.

[0041] Figure 2 A perspective view of a manufacturing container 4 is schematically shown, on the lower side of which a holding device 1 for holding a switching device is fixed. The holding device 1 includes a holding unit 6 disposed inside the manufacturing container 4. Figure 2 (Not shown in the image) and a switch lever 10 fixed to the holding unit 6, the switch lever 10 extending outward from inside the manufacturing container 4. The switch lever 10 is capable of linear movement in the Z direction by means of a linear actuator 10a fixed outside the manufacturing container 4. Therefore, the switch lever 10 is configured to move the holding unit 6 inside the manufacturing container 4.

[0042] Figure 3 schematically shown Figure 2 A perspective view of the holding unit 6 of the holding device. The holding unit 6 is configured to retain the device in place and fix it to the switching device 2 (see [reference]). Figure 1 ) at the adapter unit 8 (see Figure 4 To this end, the holding unit has a locking mechanism 12 that is movable between a locked position P1 and a released position P2.

[0043] When the switching device 2 is held by the holding unit 6 within the manufacturing container 4 and clamped between the manufacturing container 4 and the holding unit 6, the switching distance between the two contact plates 22c and 22d can be adjusted by moving the switching lever 10. Therefore, the desired switching position of the switching device 2 can be provided by means of the holding device 1 mounted on the manufacturing container.

[0044] In order to manufacture switchgear 2, and especially for contact plates 22c, 22d (see...) Figure 1 The manufacturing process or inspection is carried out by applying a high voltage to the switchgear 2 within the manufacturing container 4, which is referred to as the manufacturing voltage in this case.

[0045] The retaining unit 6 can be subjected to a manufacturing voltage. In other words, applying a manufacturing voltage will not impair the structural integrity of the retaining unit 6, nor will it impair its functionality.

[0046] Furthermore, the dielectric strength of the switch lever 10 is higher than the manufacturing voltage. In other words, the switch lever 10 is insulated from the manufacturing voltage. Therefore, the linear actuator 10a is insulated from the manufacturing voltage applied inside the manufacturing container 4 and at the holding unit 6. Thus, for example, a lower-cost linear actuator 10a can be used, which does not need to be designed to withstand high voltage. By using a linear actuator, the switching position of the switching device can be set automatically and simply during the manufacturing process.

[0047] Figure 4 A perspective view of the adapter unit 8 is schematically shown. The adapter unit 8 has a fixing element 24 at its first end 20, which can be fixed to one of the two contact posts 22a, 22b of the switching device 2. Figure 4 As shown, the lower end flange 2b of the switchgear 2 has a linear bearing 2d, which movably supports the movable contact post 22b in the Z direction. In this embodiment, the movable contact post 22b is fixed at the fixing element 24. Alternatively, the fixed contact post 22a can be fixed at the fixing element 24.

[0048] An adapter head 28 is provided at a second end 26 of the switching device opposite to the first end 20. The adapter head has an insertion geometry 54a at the end. Furthermore, the adapter head 28 has a circumferential groove 28a at a position away from the insertion geometry 54a. This circumferential groove 28a corresponds geometrically to the locking mechanism 12 of the retaining device 1, that is, it can engage with it in a form-fit manner.

[0049] Between the first end and the second ends 20, 28, the adapter unit 8 has a contact element 18 for contacting the manufacturing voltage. For example... Figure 4 As shown, the contact element 18 can be configured as a ring, and in particular, it can be configured as a sheet contact.

[0050] Figure 5A schematic perspective cross-sectional view of the retaining unit 6 is shown, wherein the locking mechanism 12 is in a closed state, i.e., in the locked position P1. More specifically, in this embodiment, the locking mechanism 12 includes two spring-loaded locking elements 16 in the form of spring-loaded retaining plates 16 movable in a direction perpendicular to the main axis Z. The retaining plates 16 form openings for receiving the adapter head 28 and have chamfered guide slopes 52a on their inner sides. By means of guide geometry 54a corresponding to the guide slopes 52a, the adapter head 28 presses against the retaining plates 16 during continuous guide, causing the retaining plates 16 to move against the spring force toward the release position P2. Once the guide process ends and the guide slopes 52a have passed the retaining plates 16, the locking mechanism 12 engages under the action of the spring force, thereby embedding the spring-loaded retaining plates 16 into the circumferential grooves 28a, and the adapter head 28... Figure 6 The adapter 28 is held in a form-fitting manner along the Z direction by the holding unit 6. For example, the adapter head 28 can be made of stainless steel, while the holding plate can be made of brass, thereby enabling the insertion process to be carried out securely and reliably.

[0051] The retaining device 1 also includes a release mechanism 14, which comprises at least one pneumatic actuator 14a and a wedge element 14b disposed thereon. The wedge element 14b has an inclined surface that can engage with a corresponding inclined surface 14c of the retaining plate 16 under the actuation of the pneumatic actuator 14a. In this way, the pneumatic actuator 14a can move the retaining plate 16, thereby causing the locking mechanism 12 to overcome the spring load and move to the release position P2. Alternatively, a tapered element with a corresponding inclined surface can also be provided.

[0052] When the spring-loaded locking element 16 exists in the form of two ring-shaped retaining plates 16, as Figure 5 As shown, the release mechanism 14 can in particular have two wedge elements 14b, each wedge element having two inclined surfaces that correspond to the inclined surfaces 14c of two different retaining plates 16. Thus, the two wedge elements 14b enable the two retaining plates 16 to move laterally in the Z direction against their spring load, thereby moving the locking mechanism 12 to the release position P2.

[0053] Figure 6 and Figure 7 A schematic perspective cross-sectional view of system 50 is shown, which includes the aforementioned retaining device 1 and the aforementioned adapter unit 8, wherein the locking mechanism is... Figure 6 The middle is in the locked position P1, in Figure 7 It is in the release position P2.

[0054] Figure 8 A flowchart illustrating a method for manufacturing a switchgear is shown schematically. The method includes the following steps: - An S10 holding unit 6 is provided within the manufacturing container 4, wherein the holding unit 6 is capable of being subjected to a manufacturing voltage and the holding unit has a locking mechanism 12; - Fix the adapter unit 8 to the switchgear 2 at point S20; - The switching device 2 is introduced into the S30 manufacturing container 4, so that the adapter unit 8 is locked in the holding unit 6; - The first manufacturing sequence S40 is executed using the manufacturing voltage at the first switching position of the switching device 2; - The S50 holding unit 6 is moved within the manufacturing container 4 by means of the switch lever 10 to bring the switching device 2 to the second switching position, wherein the dielectric strength of the switch lever 10 is higher than the manufacturing voltage; - The second manufacturing sequence S60 is executed using the manufacturing voltage at the second switching position of the switching device 2.

[0055] Where applicable, all individual features shown in the various embodiments can be combined with and / or substituted for one another without departing from the scope of the invention.

[0056] Reference number list

[0057] 1. Holding device

[0058] 2. Switchgear and switching transistors

[0059] 2a, 2b end flanges

[0060] 2c tube body

[0061] 2D bearings

[0062] 2e Corrugated Pipe

[0063] 4. Manufacturing containers

[0064] 6 Holding Units

[0065] 8 adapter units

[0066] 10 Switch lever

[0067] 10a Linear Driver

[0068] 12 Locking mechanisms

[0069] 14. Release mechanism

[0070] 14a Pneumatic actuator

[0071] 14b Wedge element

[0072] 14c bevel

[0073] 16 Locking elements

[0074] 18 Contact elements

[0075] 20 First end of the adapter unit

[0076] Contact posts of switchgear 22a and 22b

[0077] 24 Fixing elements

[0078] 26 The second end of the adapter unit

[0079] 28 adapter head

[0080] 28a Annular groove

[0081] 50 System

[0082] 52a, 52b Importing inclined planes

[0083] Importing geometry in 54a and 54b

[0084] P1 adapter unit locking position

[0085] P2 is the release position of the adapter unit.

Claims

1. A holding device (1) for holding a switching device (2) within a manufacturing container (4), the holding device comprising: A retaining unit (6) is configured to retain an adapter unit (8) that can be fixed to the switching device (2). as well as A switch lever (10) is configured to move the holding unit (6) within the manufacturing container (4). The retaining unit (6) has a locking mechanism (12) that can move between a locked position (P1) and a released position (P2) to lock the adapter unit (8). The holding unit (6) can be subjected to a manufacturing voltage, and the dielectric strength of the switching rod (10) is higher than the manufacturing voltage. The manufacturing voltage is the high voltage used to manufacture the switching device (2).

2. The holding device (1) according to claim 1, wherein, The locking mechanism (12) can be moved to the locked position (P1) by means of spring force, magnetic force, pneumatic device or hydraulic device.

3. The holding device (1) according to claim 1 or 2, wherein, The locking mechanism (12) can be moved to the release position (P2) by means of spring force, magnetic force, pneumatic device or hydraulic device.

4. The holding device (1) according to any one of the preceding claims includes a release mechanism (14) having a pneumatic drive or a hydraulic drive, and the release mechanism is configured to move the locking mechanism (12) to the release position (P2).

5. The retaining device (1) according to any one of the preceding claims includes a spring-loaded locking element (16) which is capable of engaging the adapter (8) in the locked position (P1) in a form-fitting manner along the main axis (Z) of the adapter (8).

6. An adapter unit (8) for fixing to a switching device (2), the adapter unit being configured for fixing to a retaining device (1) according to any one of claims 1 to 5, and the adapter unit having a contact element (18) for contacting a manufacturing voltage, wherein, The manufacturing voltage is the high voltage used to manufacture the switching device (2).

7. The adapter unit (8) according to claim 6, wherein, The adapter unit (8) has a fixing element (24) at a first end (20) that can be fixed to the contact post (22a, b) of the switch device (2), and the adapter unit has an adapter head (28) at a second end (26) opposite to the first end, the adapter head being used to lock the adapter unit (8) in the retaining device (1) in a form-fitting manner.

8. A system (50) comprising a holding device (1) according to any one of claims 1 to 5 and an adapter unit (8) according to claim 6 or 7.

9. The system (50) according to claim 8, wherein, The adapter unit (8) has an inlet ramp (52a) and the retaining device (1) has an inlet geometry (54a) corresponding to the inlet ramp; or the retaining device (1) has an inlet ramp (52b) and the adapter unit has an inlet geometry (54b) corresponding to the inlet ramp.

10. A method for manufacturing a switching device (2) using a manufacturing voltage, wherein, The manufacturing voltage is a high voltage, and the method includes the following steps: - A holding unit (6) is provided (S10) inside the manufacturing container (4), wherein the holding unit (6) is capable of being subjected to the manufacturing voltage and the holding unit has a locking mechanism (12). - Fix the adapter unit (8) (S20) to the switchgear (2); - The switching device (2) is introduced (S30) into the manufacturing container (4) such that the adapter unit (8) is locked in the holding unit (6); - At the first switching position of the switching device (2), the manufacturing voltage is used to perform (S40) a first manufacturing sequence; - The holding unit (6) is moved (S50) within the manufacturing container (4) by means of a switch lever (10) to bring the switching device (2) to a second switching position, wherein the dielectric strength of the switch lever (10) is higher than the manufacturing voltage; - The second manufacturing sequence (S60) is performed using the manufacturing voltage at the second switching position of the switching device (2).

11. The holding device (1) according to any one of claims 1 to 5, the adapter unit (8) according to claim 6 or 7, the system (50) according to claim 8, and / or the method according to claim 10, wherein, The manufacturing voltage is higher than 50,000 volts.

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