Switching system for vacuum interrupter

Abstract

The invention relates to a switching system for a vacuum interrupter, comprising:-an actuator (10); a switch (20); and-a shunt module (30); wherein the actuator is configured to switch the switch from a first position to a second position; wherein the actuator is configured to switch the switch from the second position to the first position; wherein the switch, when transitioned from the first position to the second position, is configured to open the vacuum interrupter (40); and wherein the shunt module is configured to apply a retarding force to the switch when the switch transitions from the first position to the second position.

Description

Technical Field

[0001] The invention relates to a switch system for a vacuum interrupter (vacuum interrupter), a vacuum interrupter system and a low-voltage, medium-voltage or high-voltage switchgear. Background Art

[0002] Gas-insulated switchgear (GIS) is subject to sustainable requirements, which means that the entire product needs to change towards incorporating sustainable products. Sulfur hexafluoride (SF6), used as a gaseous dielectric medium in GIS, is one of the strongest greenhouse gases, so it must be replaced with more sustainable alternatives such as dry air. However, this change poses a challenge for load switches (LBS) because sustainable alternatives to SF6 have lower dielectric strength, which complicates the destruction of arcs during LBS disconnection.

[0003] One solution to destroy the arc during LBS disconnection is to implement a shunt vacuum interrupter (SVI), which uses a smaller vacuum interrupter to extinguish the arc during vacuum interrupter disconnection. During vacuum interrupter closing, the corresponding arc generation of the switch SVI is not engaged. This is a requirement for two different speeds of LBS. During disconnection or destruction, the SVI needs enough time to ensure that arc extinguishing occurs in the SVI, so the disconnection operation must be slow. However, the closing operation needs to be performed as quickly as possible to reduce the arc duration. Therefore, the LBS with SVI must be actuated so that the disconnection operation is significantly slower than the closing operation.

[0004] Standard LBS actuators are designed to release the same energy during closing and opening operations, and modifying such an actuator to release significantly more energy during closing than during opening is very complex.

[0005] There is a need to address these issues. Summary of the invention

[0006] Therefore, it would be advantageous to have an improved switching system for a vacuum interrupter.

[0007] The objects of the invention are solved by the subject-matter of the independent claims, wherein further embodiments are incorporated in the dependent claims.

[0008] In a first aspect, there is provided a switching system for a vacuum interrupter, comprising:

[0009] - actuator;

[0010] - switches; and

[0011] -Diversion module

[0012] The actuator is configured to switch the switch from the first position to the second position. The actuator is configured to switch the switch from the second position to the first position. The switch is configured to open the vacuum interrupter when switching from the first position to the second position. The shunt module is configured to apply a blocking force to the switch when switching from the first position to the second position.

[0013] In one example, the shunt module is configured to apply an actuation force to the switch when the switch is switched from the second position to the first position.

[0014] In one example, the shunt module includes a spring. The shunt module includes at least one component configured to move when the switch is switched from a first position to a second position. When the at least one component of the shunt module moves as the switch is switched from the first position to the second position, the shunt module is configured to cause the spring to be compressed.

[0015] In one example, at least one component of the shunt module is configured to move when the switch is switched from the second position to the first position. When the at least one component of the shunt module moves as the switch is switched from the second position to the first position, the shunt module is configured to cause the spring to expand.

[0016] In one example, the at least one component of the shunt module includes a first arm or rod having one end fixedly connected to a shaft, and the shaft rotates in a first direction when the actuator switches the switch from the first position to the second position. The second end of the first arm or rod is rotationally connected to the first end of the second arm or rod at a rotational connection. The second end of the second arm or rod is connected to the shunt module or the actuator or the switch at a coupling position. The spring is located between the rotational connection and the coupling position, and when the shaft rotates in the first direction, the distance between the rotational connection and the coupling position decreases.

[0017] In one example, when the shaft rotates in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the distance between the rotational connection and the coupling position increases.

[0018] In one example, at least one component of the shunt module includes an arm or rod having one end connected to a pin at a rotational connection that moves through an arc in a first direction as an actuator switches a switch from a first position to a second position. A second end of the arm or rod is coupled to the shunt module or the actuator or the switch at a coupling location. A spring is located between the rotational connection and the coupling location, and as the pin moves through the arc in the first direction, a distance between the rotational connection and the coupling location decreases.

[0019] In one example, the distance between the rotational connection and the coupled position increases as the pin moves through an arc in a second direction opposite the first direction as the actuator transitions the switch from the second position to the first position.

[0020] In one example, the shunt module includes a spring having one end connected to a pin that moves through an arc in a first direction when an actuator switches the switch from a first position to a second position. A second end of the spring is connected to the shunt module or the actuator or the switch at a fixed position, and the spring is in tension when the pin moves through the arc in the first direction.

[0021] In one example, when the pin moves through an arc in a second direction opposite the first direction as the actuator switches the switch from the second position to the first position, the distance between the rotational connection and the spring contracts.

[0022] In one example, the flow diverter module includes an air damper.

[0023] In one example, an air damper includes a plunger having one end connected to a pin that moves through an arc in a first direction when an actuator switches a switch from a first position to a second position. The air damper includes a cylinder in which the plunger can move, and the cylinder is connected to a flow diversion module or an actuator or a switch at a fixed position. When the pin moves through the arc in the first direction, the plunger is configured to move in the first direction within the cylinder to compress the gas in the cylinder.

[0024] In one example, the cylinder includes a one-way valve. When the pin moves in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the plunger is configured to move in the cylinder in the second direction opposite to the first direction. When the plunger moves in the cylinder in the second direction, the one-way valve is configured to allow at least a portion of the gas to pass through the valve.

[0025] In a second aspect, there is provided a vacuum interrupter system comprising:

[0026] - actuator;

[0027] -switch;

[0028] - a diversion module; and

[0029] - Vacuum interrupter.

[0030] The actuator is configured to switch the switch from the first position to the second position. The actuator is configured to switch the switch from the second position to the first position. The switch is configured to open the vacuum interrupter when switching from the first position to the second position. The shunt module is configured to apply a blocking force to the switch when switching from the first position to the second position.

[0031] In a third aspect, a low voltage, medium voltage or high voltage switchgear is provided, comprising the switch system according to the first aspect and / or the vacuum interrupter system according to the second aspect.

[0032] The above aspects and examples will become apparent and elucidated with reference to the embodiments described hereinafter. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Exemplary embodiments will be described below with reference to the following drawings:

[0034] Figure 1 shows a schematic diagram of an exemplary switching system;

[0035] Figure 2 shows a schematic diagram of an exemplary actuator;

[0036] Figure 3 shows a schematic diagram of an exemplary actuator;

[0037] Figure 4 It shows that Figure 2 A schematic diagram of an exemplary switching system of the actuator shown;

[0038] Figure 5 It shows that Figure 3 A schematic diagram of an exemplary switching system of the actuator shown;

[0039] Figure 6 Shown with Figure 3 A schematic diagram of an exemplary flow diversion module operating with the actuators shown;

[0040] Figure 7 Shown with Figure 3 A schematic diagram of an exemplary flow diversion module operating with the actuators shown;

[0041] Figure 8 , 9 and 10 show the same as Figure 3 Schematic diagram of an exemplary flow diversion module operating with the actuator shown, wherein Figure 8 shows the closed position of the relevant switch, Fig. 9 shows the disconnected position of the relevant switch, Fig.10 The grounding location is shown;

[0042] Fig.11 , 12 and 13 show the Figure 2 Schematic diagram of an exemplary flow diversion module operating together with the actuator shown in or 3, wherein, Fig.11 shows the closed position of the relevant switch, Fig.12 shows the disconnected position of the relevant switch, Fig.13 The grounding location is shown;

[0043] Fig.14 , 15 and 16 show the Figure 2 Schematic diagram of an exemplary flow diversion module operating together with the actuator shown in or 3, wherein, Fig.14 shows the closed position of the relevant switch, Fig.15 shows the disconnected position of the relevant switch, Fig.16 The grounding location is shown;

[0044] Fig.17 , 18 and 19 show the Figure 2 Schematic diagram of an exemplary flow diversion module operating together with the actuator shown in or 3, wherein, Fig.17 shows the closed position of the relevant switch, Fig.18 shows the disconnected position of the relevant switch, Fig.19 The grounding location is shown;

[0045] Fig. 20 , 21 and 22 show the Figure 2 Schematic diagram of an exemplary flow diversion module operating together with the actuator shown in or 3, wherein, Fig. 20 shows the closed position of the relevant switch, Fig.21 shows the disconnected position of the relevant switch, Fig. 22 The grounding location is shown;

[0046] Fig.23 , 24 and 25 show the same as Figure 2 Schematic diagram of an exemplary flow diversion module operating together with the actuator shown in or 3, wherein, Fig.23 shows the closed position of the relevant switch, Fig.24 shows the disconnected position of the relevant switch, Fig.25 shows the grounding location; and

[0047] Fig.26 , 27 and 28 show the Figure 2 Schematic diagram of an exemplary flow diversion module operating together with the actuator shown in or 3, wherein, Fig.26 shows the closed position of the relevant switch, Fig. 27 shows the disconnected position of the relevant switch, Fig.28 The grounding location is shown. DETAILED DESCRIPTION

[0048] Figure 1-28 A switch system for a vacuum interrupter and a vacuum interrupter system, either or both of which can be used in conjunction with low-voltage, medium-voltage or high-voltage switchgear.

[0049] A typical switching system for a vacuum interrupter includes:

[0050] - an actuator 10;

[0051] - a switch 20; and

[0052] - Diversion module 30.

[0053] The actuator is configured to switch the switch from a first position to a second position. The actuator is configured to switch the switch from the second position to the first position. The switch is configured to open the vacuum interrupter 40 when switching from the first position to the second position. The shunt module is configured to apply a blocking force to the switch when the switch is switched from the first position to the second position.

[0054] See also Figure 1 , shows a gas-insulated box or compartment of a switchgear. A switch or switch system 20 is located in the compartment, and the switch 20 may have one or more associated vacuum interrupters 40. An actuator 10 is located outside the compartment, and a shunt module 30 may be provided at the interface between the actuator and the switch.

[0055] This example of a novel flow splitter module is configured to operate with two different types of actuators and the effects are similar to those of Figure 1 The interface shown is consistent.

[0056] In practice, there are two basic types of interfaces between the switching mechanism or switch 20 and the drive or actuator 10. The interface is located outside the gas insulation box.

[0057] Figure 2 An example of a first type of actuator 10 is shown, which provides a first type of interface based on two pins. These pins follow a circular trajectory. One pin drives the closing and opening operation, and the second pin switches between the ground position and the cut-off (open) position. The shunt vacuum interrupter or shunt module 30 is attached to the pin, which switches between opening and closing. In the following discussion, the pin is labeled as pin 120.

[0058] Figure 3 An example of a second type of actuator 10 providing a second type of interface based on a spline shaft is shown. The shaft has three angular positions - open, closed and grounded, or in other words, disconnected, closed and grounded. The shunt vacuum interrupter module or shunt module 30 is placed or attached to the spline shaft between the wall of the gas insulation box and the driver. In the following discussion, the spline shaft is labeled as shaft 90.

[0059] See also Figure 3 It is obvious that when the spline shaft rotates, other components can be made to rotate in an arc around the spline shaft, and the pin can be positioned to rotate in an arc. Such a pin can also be the pin 120 discussed below.

[0060] Figure 4 It shows that Figure 2 A schematic diagram of an exemplary switch system for an actuator 10 is shown, wherein a shunt module 30 is located at the interface between the actuator 10 and a switch 20, which may be associated with one or more vacuum interrupters 40. The shunt module is coupled to a pin 120 of the actuator 10, as described above.

[0061] Figure 5 It shows that Figure 3 Schematic diagram of an exemplary switch system of the actuator 10 shown, wherein the shunt module 30 is located at the interface (interconnection component) between the actuator 10 and the switch 20, which can be associated with one or more vacuum interrupters 40. The shunt module 30 can be coupled to the shaft 90 of the actuator 10, as described above. However, as described above, when the shaft 90 rotates, the pin 120 can be moved along an arc, and the shunt module can be coupled to the pin 120.

[0062] According to one example, the shunt module 30 is configured to apply a driving force to the switch 20 when the switch is switched from the second position to the first position.

[0063] Thus, a slowed closing movement and an accelerated opening movement of the switch 20 may be provided. For example, the closing movement may be approximately 20% slower than the opening movement.

[0064] According to one example, the shunt module 30 includes a spring 50. The shunt module includes at least one component 60, 70, 80 configured to move as the switch 20 is switched from the first position to the second position. When at least one component of the shunt module moves as the switch is switched from the first position to the second position, the shunt module is configured to cause the spring to be compressed.

[0065] According to one example, at least one component 60, 70, 80 of the shunt module 30 is configured to move as the switch 20 switches from the second position to the first position. When at least one component of the shunt module moves as the switch switches from the second position to the first position, the shunt module is configured to cause the spring to expand.

[0066] According to one example, at least one component of the shunt module 30 includes a first arm or rod 60, one end of which is fixedly connected to a shaft 90, which rotates in a first direction as the actuator 10 switches the switch 20 from the first position to the second position. The second end of the first arm or rod is rotationally connected to the first end of the second arm or rod 70 at a rotational connection 100. The second end of the second arm or rod is coupled to the shunt module or actuator or switch at a coupling location 110. The spring 50 is located between the rotational connection and the coupling location, and when the shaft rotates in the first direction, the distance between the rotational connection and the coupling location decreases.

[0067] According to one example, when the shaft rotates in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the distance between the rotational connection and the coupling position increases.

[0068] Figure 6 and 7 shows the use of Figure 3 Schematic diagram of an exemplary shunt module 30 operating with the actuator 10 shown, the operation is consistent with this operation. The hole for the spline shaft indicates the position of the shaft 90 of the actuator. The compression rod is the first arm or rod 60 described above. The spring guide link is the second arm or rod 70 described above. The compression spring is the spring 50 described above. In both cases, the first and second arms or rods are rotationally connected to each other. Rotationally fixed is the connection position 110 as described above, i.e., the fixed position, and can be the position of the shunt module 30 or the actuator 10 or the switch 20, as long as it does not move. It can even be part of the switchgear compartment. The second arm or rod has a slot in which the connection between the two arms or rods can slide, or the connection position can slide in the slot, and the spring 50 is located between these positions and is compressed as the actuator 10 operates to close the switch 20. It is also obvious that the first arm or rod 60 can have a slot and the spring 50 can be located along the first arm or rod, also compressed when the actuator 10 operates to close the switch 20. This compression of the spring 50 provides a retarding or decelerating force.

[0069] Figure 8 , 9 10 show schematic diagrams of an exemplary flow diversion module 20 operating with such an actuator 10, wherein: Figure 8 shows the closed position of the relevant switch, Fig. 9 shows the disconnected position of the relevant switch, Fig.10 The grounding location is shown.

[0070] Therefore, the shunt VI module of the shunt module 30 uses a compression spring 50. The spring is compressed during the opening period, so energy accumulates in the spring, thereby slowing down the system. During the closing period, the situation is just the opposite, when the spring is released and its energy accelerates the closing operation.

[0071] The spline shaft or shaft 90 of the load switch or actuator 10 can rotate about 90° or other angles each time it is operated. The mechanism of the shunt module 30 is designed to be independent of the angle. The system can be configured to maintain the disconnected position as shown.

[0072] The compression rod of the SVIM is connected to the drive shaft. A compression pin is fixed to this rod and serves as an element that compresses the spring during opening or is pushed during closing. The spring guide link guides the compression spring. The link is fixed to the drive or switchgear housing via a swivel joint. The non-moving spring end can rest on the swivel joint or on an edge formed on the spring guide link. The compression spring can be guided in various ways, as shown in the figure.

[0073] According to one example, at least one component of the shunt module 30 includes an arm or rod 80 having one end connected at a rotational connection to a pin 120 that moves through an arc in a first direction as the actuator 10 switches the switch 20 from a first position to a second position. A second end of the arm or rod is coupled to the shunt module or actuator or switch at a coupling location 130. A spring 50 is located between the rotational connection and the coupling location, and as the pin moves through the arc in the first direction, the distance between the rotational connection and the coupling location decreases.

[0074] According to one example, the distance between the rotational connection and the coupling position increases as the pin moves through an arc in a second direction opposite the first direction as the actuator switches the switch from the second position to the first position.

[0075] Fig.11 , 12 and 13 show the use of Figure 2 3 is a schematic diagram of an exemplary flow diversion module 30 operating together with the actuator 10 shown in FIG. 3 , and the operation is consistent with this operation. Fig.11 The closed position of the associated switch 20 is shown, Fig.12 shows the disconnected position of the relevant switch, Fig.13 The ground position is shown. Pin 120 can be reference Figure 2 described open / close pins, or may be offset as in reference Figure 3 The pin 120 is in the center of the shaft. The lever or arm 80 has a slot that is coupled to a coupling location 130, which is a fixed location that can be a fixed location of an actuator, a shunt module or a switch, or even a fixed location of a switchgear compartment, and the spring is compressed when moving from the closed position to the open position.

[0076] According to one example, the shunt module 30 includes a spring 50, one end of which is connected to a pin 120, which moves through an arc in a first direction as the actuator 10 switches the switch 20 from a first position to a second position. The second end of the spring is connected to the shunt module or actuator or switch at a fixed position 140, and the spring is in a stretched / tensioned state when the pin moves through the arc in the first direction.

[0077] According to one example, when the pin moves through an arc in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the distance between the rotational connection and the spring contracts.

[0078] Fig.14 , 15 and 16 show the use of Figure 2 3 is a schematic diagram of an exemplary flow diversion module 30 operating together with the actuator 10 shown in FIG. 3 , and the operation is consistent with this operation. Fig.14 The closed position of the associated switch 20 is shown, Fig.15 The disconnected position of the relevant switch 20 is shown, Fig.16 The ground position is shown. Pin 120 can be reference Figure 2 The open / closed pins described may be offset from the reference Figure 3 The pin 120 is in the center of the axis in question. The spring 50 is coupled to a coupling location 140 which is in a fixed location which may be a fixed location of an actuator, a shunt module or a switch or even a fixed location of a switchgear compartment and the spring is stretched or in a stretched / tensioned state when moving from the closed position to the open position.

[0079] According to one example, the flow diverter module 30 includes an air damper 150 .

[0080] According to one example, the air damper includes a plunger 160, one end of which is connected to the pin 120, and the pin 120 moves through an arc in a first direction as the actuator 10 switches the switch 20 from the first position to the second position. The air damper includes a cylinder 170, and the plunger can move within the cylinder 170. The cylinder is connected to the diverter module or the actuator or the switch at a fixed position 180, and when the pin moves through the arc in the first direction, the plunger is configured to move in the first direction within the cylinder to compress the gas in the cylinder.

[0081] According to one example, the cylinder includes a one-way valve 190, and when the pin moves through an arc in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the plunger is configured to move in the cylinder in the second direction opposite to the first direction. When the plunger moves in the second direction in the cylinder, the one-way valve is configured to allow at least a portion of the gas to pass through the valve.

[0082] Fig.17 , 18 and 19 show the example for the same Figure 2 3 is a schematic diagram of an exemplary flow diversion module 30 operating together with the actuator 10 shown in FIG. Fig.17 The closed position of the associated switch 20 is shown, Fig.18 shows the disconnected position of the relevant switch, Fig.19 The ground position is shown. Pin 120 can be reference Figure 2 described open / close pins, or may be offset as in reference Figure 3 The pin 120 is in the center of the axis in question.

[0083] Fig. 20 , 21 and 22 show the example for the same Figure 2 3 is a schematic diagram of an exemplary flow diversion module 30 operating together with the actuator 10 shown in FIG. Fig. 20 The closed position of the associated switch 20 is shown, Fig.21 shows the disconnected position of the relevant switch, Fig. 22 The ground position is shown. Pin 120 can be reference Figure 2 described open / close pins, or may be offset as in reference Figure 3 The pin 120 is in the center of the axis in question.

[0084] Fig.23 , 24 and 25 show the example for the same Figure 2 3 is a schematic diagram of an exemplary flow diversion module 30 operating together with the actuator 10 shown in FIG. Fig.23 The closed position of the associated switch 20 is shown, Fig.24 shows the disconnected position of the relevant switch, Fig.25 The ground position is shown. Pin 120 can be reference Figure 2 described open / close pins, or may be offset as in reference Figure 3 The pin 120 is in the center of the axis in question.

[0085] Fig.26 , 27 and 28 show the example for the same Figure 2 3 is a schematic diagram of an exemplary flow diversion module 30 operating together with the actuator 10 shown in FIG. Fig.26 The closed position of the associated switch 20 is shown, Fig. 27 shows the disconnected position of the relevant switch, Fig.28 The ground position is shown. Pin 120 can be reference Figure 2 described open / close pins, or may be offset as in reference Figure 3 The pin 120 is in the center of the axis in question.

[0086] like Figure 17-19 As shown in FIGS. 23-25 ​​, the cylinder 170 may have a one-way valve 190 that allows gas to pass so that there is no blocking force when moving from the open position to the closed position.

[0087] like Figure 20-22As shown in FIGS. 26-28 , the plunger 160 moving in the cylinder 170 may have a one-way valve 190 that allows gas to pass so that there is no blocking force when moving from the open position to the closed position.

[0088] In each case, one end of the plunger is connected to a portion of the actuator - pin 120 - which moves through an arc of a circle and a cylinder 170 is connected to a fixed position 180.

[0089] An exemplary vacuum interrupter system includes:

[0090] - an actuator 10;

[0091] - switch 20;

[0092] - a flow splitter module 30; and

[0093] - Vacuum interrupter 40.

[0094] The actuator is configured to switch the switch from the first position to the second position. The actuator is configured to switch the switch from the second position to the first position. The switch is configured to open the vacuum interrupter when switching from the first position to the second position. The shunt module is configured to apply a blocking force to the switch when switching from the first position to the second position.

[0095] In one example, the shunt module is configured to apply an actuation force to the switch when the switch is switched from the second position to the first position.

[0096] In one example, the shunt module includes a spring 50. The shunt module includes at least one component 60, 70, 80, which is configured to move when the switch is switched from the first position to the second position. When at least one component of the shunt module moves as the switch is switched from the first position to the second position, the shunt module is configured to cause the spring to be compressed.

[0097] In one example, at least one component 60, 70, 80 of the shunt module is configured to move when the switch is switched from the second position to the first position. When at least one component of the shunt module moves as the switch is switched from the second position to the first position, the shunt module is configured to cause the spring to expand.

[0098] In one example, at least one component of the shunt module includes a first arm or rod 60, one end of which is fixedly connected to a shaft 90, and when the actuator switches the switch from the first position to the second position, the shaft 90 rotates in a first direction. The second end of the first arm or rod is rotationally connected to the first end of the second arm or rod 70 at a rotational connection 100. The second end of the second arm or rod is connected to the shunt module or the actuator or the switch at a coupling location 110. A spring is located between the rotational connection and the coupling location, wherein when the shaft rotates in the first direction, the distance between the rotational connection and the coupling location decreases.

[0099] In one example, when the shaft rotates in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the distance between the rotational connection and the coupling position increases.

[0100] In one example, at least one component of the shunt module includes an arm or rod 80 having one end connected at a rotational connection to a pin 120 that moves through an arc in a first direction when an actuator switches the switch from a first position to a second position. A second end of the arm or rod is coupled to the shunt module or actuator or switch at a coupling location 130. A spring is located between the rotational connection and the coupling location, and as the pin moves through an arc in the first direction, the distance between the rotational connection and the coupling location decreases.

[0101] In one example, the distance between the rotational connection and the coupled position increases as the pin moves through an arc in a second direction opposite the first direction as the actuator transitions the switch from the second position to the first position.

[0102] In one example, the shunt module includes a spring 50, one end of which is connected to a pin 120, and when the actuator switches the switch from the first position to the second position, the pin moves through an arc in a first direction. The second end of the spring is connected to the shunt module or the actuator or the switch at a fixed position 140, and when the pin moves through an arc in the first direction, the spring is in a tensioned state.

[0103] In one example, when the pin moves through an arc in a second direction opposite the first direction as the actuator switches the switch from the second position to the first position, the distance between the rotational connection and the spring contracts.

[0104] In one example, the flow diversion module includes an air damper 150 .

[0105] In one example, the air damper includes a plunger 160 connected at one end to a pin 120 that moves through an arc in a first direction when an actuator switches the switch from a first position to a second position. The air damper includes a cylinder 170 in which the plunger is movable. The cylinder is connected to a flow diversion module or an actuator or a switch at a fixed position 180. When the pin moves through the arc in the first direction, the plunger is configured to move in the cylinder in the first direction to compress the gas in the cylinder.

[0106] In one example, the cylinder includes a one-way valve 190, and when the pin moves through an arc in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the plunger is configured to move in the cylinder in the second direction opposite to the first direction. When the plunger moves in the second direction, the one-way valve is configured to allow at least a portion of the gas to pass through the valve.

[0107] The low voltage or medium voltage or high voltage switchgear may comprise a switch system as described above and / or may comprise a vacuum interrupter system as described above.

Claims

1. A switching system for a vacuum interrupter, comprising: - an actuator (10); - a switch (20); and - a diversion module (30); wherein the actuator is configured to switch the switch from a first position to a second position; wherein the actuator is configured to switch the switch from the second position to the first position; wherein the switch is configured to disconnect the vacuum interrupter (40) when switching from the first position to the second position; and The shunt module is configured to apply a blocking force to the switch when the switch is switched from the first position to the second position.

2. The switch system according to claim 1, wherein: The shunt module is configured to apply a driving force to the switch when the switch is switched from the second position to the first position.

3. The switch system according to any one of claims 1 to 2, wherein: The shunt module includes a spring (50), wherein the shunt module includes at least one component (60, 70, 80) configured to move when the switch is switched from the first position to the second position, and wherein when the at least one component of the shunt module moves as the switch is switched from the first position to the second position, the shunt module is configured such that the spring is compressed.

4. The switch system according to claim 3, wherein: The at least one component (60, 70, 80) of the shunt module is configured to move when the switch is switched from the second position to the first position, and wherein the shunt module is configured to cause the spring to expand when the at least one component of the shunt module moves as the switch is switched from the second position to the first position.

5. The switch system according to any one of claims 3 to 4, wherein: The at least one component of the shunt module includes a first arm or rod (60) having one end fixedly connected to a shaft (90), wherein the shaft rotates in a first direction when the actuator switches the switch from the first position to the second position, wherein the second end of the first arm or rod is rotationally connected to the first end of a second arm or rod (70) at a rotational connection (100), wherein the second end of the second arm or rod is connected to the shunt module or actuator or switch at a coupling position (110), wherein the spring is located between the rotational connection and the coupling position, and wherein the distance between the rotational connection and the coupling position decreases when the shaft rotates in the first direction.

6. The switch system according to claim 5, wherein: When the shaft rotates in a second direction opposite to the first direction as the actuator transitions the switch from the second position to the first position, the distance between the rotational connection and the coupling position increases.

7. The switch system according to any one of claims 3 to 4, wherein: The at least one component of the shunt module includes an arm or rod (80) having one end connected to a pin (120) at a rotational connection, wherein the pin moves through an arc in a first direction when the actuator switches the switch from the first position to the second position, wherein a second end of the arm or rod is connected to the shunt module or actuator or switch at a coupling position (130), wherein the spring is located between the rotational connection and the coupling position, and wherein the distance between the rotational connection and the coupling position decreases as the pin moves through the arc in the first direction.

8. The switch system according to claim 7, wherein: As the pin moves through an arc in a second direction opposite the first direction as the actuator transitions the switch from the second position to the first position, the distance between the rotational connection and the coupled position increases.

9. The switch system according to any one of claims 1 to 2, wherein: The shunt module comprises a spring (50) having one end connected to a pin (120), wherein the pin moves through an arc in a first direction when the actuator switches the switch from the first position to the second position, wherein a second end of the spring is connected to the shunt module or the actuator or the switch at a fixed position (140), and wherein the spring is in tension when the pin moves through the arc in the first direction.

10. The switch system according to claim 9, wherein: When the pin moves through an arc in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the distance between the rotational connection and the spring contracts.

11. The switch system according to claim 1, wherein: The flow diversion module includes an air damper (150).

12. The switch system according to claim 11, wherein: The air damper comprises a plunger (160) having one end connected to a pin (120), wherein the pin moves through an arc in a first direction when the actuator switches the switch from the first position to the second position, wherein the air damper comprises a cylinder (170) within which the plunger is movable, wherein the cylinder is connected to the diverter module or the actuator or the switch at a fixed position (180), and wherein when the pin moves through the arc in the first direction, the plunger is configured to move in the first direction within the cylinder to compress the gas in the cylinder.

13. The switch system according to claim 12, wherein: The cylinder includes a one-way valve (190), and wherein when the pin moves through an arc in a second direction opposite to the first direction as the actuator switches the switch from the second position to the first position, the plunger is configured to move in the cylinder in a second direction opposite to the first direction, and wherein when the plunger moves in the cylinder in the second direction, the one-way valve is configured to allow at least a portion of the gas to pass through the valve.

14. A vacuum interrupter system comprising: - an actuator (10); - a switch (20); - a diversion module (30); and - a vacuum interrupter (40); wherein the actuator is configured to switch the switch from a first position to a second position; wherein the actuator is configured to switch the switch from the second position to the first position; wherein the switch is configured to disconnect the vacuum interrupter when switching from the first position to the second position; and The shunt module is configured to apply a blocking force to the switch when the switch is switched from the first position to the second position.

15. A low voltage, medium voltage or high voltage switchgear, comprising a switch system according to any one of claims 1 to 13 and / or a vacuum interrupter system according to claim 14.

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