阅读说明：本技术 压力释放系统和包括压力释放系统的容器、建筑物、外壳或隔间 (Pressure release system and container, building, enclosure or compartment comprising a pressure release system ) 是由 克里特·佩斯 雷托·斯塔德勒 于 2019-09-05 设计创作，主要内容包括：提出了一种用于具有电气装置(105)的容器、建筑物、外壳或隔间(110)的主动驱动的压力释放系统(100)。主动驱动的压力释放系统包括面板,并且进一步包括：故障检测设备(102),用于检测容器、建筑物、外壳或隔间的电气装置中的电弧故障；以及触发单元(103),用于在由故障检测设备检测到电弧故障时触发用于面板的打开信号。面板打开机构以破坏性的方式打开面板。此外,描述了一种具有主动操作的压力释放系统的容器、建筑物、外壳或隔间。还描述了一种用于从容器释放压力的方法,该容器具有面板以及在该容器内的电气装置。(An actively driven pressure relief system (100) for a container, building, enclosure or compartment (110) having an electrical device (105) is presented. The actively driven pressure relief system includes a panel, and further includes: a fault detection device (102) for detecting an arc fault in an electrical installation of a container, building, enclosure or compartment; and a triggering unit (103) for triggering an open signal for the panel when an arc fault is detected by the fault detection device. The panel opening mechanism opens the panel in a destructive manner. Furthermore, a container, building, enclosure or compartment with an actively operated pressure release system is described. A method for releasing pressure from a container having a panel and an electrical device within the container is also described.)

1. An actively driven pressure relief system (100) for a container, building, enclosure or compartment (110) having an electrical device (105), the actively driven pressure relief system comprising a panel (101) and comprising:

a fault detection device (102) for detecting an arc fault in the electrical installation of the container, the building, the enclosure, or the compartment;

a triggering unit (103) for triggering an open signal for the panel (101) when an arc fault is detected by the fault detection device; and

a panel opening mechanism (108), wherein the panel opening mechanism opens the panel in a destructive manner.

2. The actively actuated pressure relief system (100) of claim 1, said panel opening mechanism being at least one of an electric actuator, a solenoid, a pyrotechnic device, compressed gas, or a preloaded mechanical spring.

3. The actively driven pressure relief system (100) of any one of the preceding claims, wherein the fault detection device (102) comprises at least one of: an arc detection device, an over-current detection device, a reverse current detection device, or a pressure rise detection device.

4. The actively driven pressure relief system (100) of any one of the preceding claims, wherein the triggering unit (103) is part of the fault detection device (102).

5. A container, building, enclosure or compartment (110) having an electrical device (105), the electrical device (105) comprising one or more electrical apparatuses, the container comprising:

a panel being part of at least one wall (111, 112, 114, 115) or ceiling (113) of the container, the building, the enclosure, or the compartment (110); and

active pressure release system (100) according to any of claims 1 to 4.

6. A container, building, enclosure or compartment according to claim 5, wherein the panel (101) is located in the wall or ceiling closest to the electrical equipment of the electrical apparatus (105) having the highest risk of arc fault.

7. The container, building, enclosure or compartment of any one of claims 5 or 6, wherein the container is a container with a high power rectifier.

8. A container, building, enclosure or compartment according to any of claims 5 to 7, wherein the fault detection device (102) and the trigger unit (103) allow opening of the panel (101) before the pressure within the container, building, enclosure or compartment (110) rises above a threshold value.

9. A container, building, enclosure or compartment according to any of claims 5 to 8, wherein the system (100) comprises more than one panel (101).

10. A container, building, enclosure or compartment according to any one of claims 5 to 9, wherein the panel (101) is a sheet metal panel.

11. A method for releasing pressure from a container, building, enclosure, or compartment having a panel and an electrical device therein, the method comprising:

detecting an arc fault in the electrical device by a fault detection apparatus;

triggering an open signal for the panel of the container, building, enclosure, or compartment upon detection of an arc fault by the fault detection device; and

forwarding the opening signal to the panel of the container, building, enclosure or compartment and initiating opening of the panel of the container, building, enclosure or compartment.

12. The method of claim 11, wherein detecting an arc fault in the electrical device comprises: detecting arcing, over-current, reverse current, and pressure rise.

Technical Field

The present invention relates to the field of pressure relief panels, such as in containers, buildings, enclosures and compartments having electrical devices therein. In particular, the present invention relates to pressure relief panels that react to overpressure in a container, building, enclosure or compartment, the overpressure being caused by an electrical fault. The invention further relates to a method for releasing pressure from a container, building, enclosure or compartment having an electrical device, in particular for releasing pressure from a container, building, enclosure or compartment through a panel in case of an electrical failure.

Background

Containers, buildings, enclosures and compartments (which may also be collectively referred to as enclosures) having electrical devices therein are particularly protected from damage, particularly damage caused by electrical faults, such as arc faults. Arc faults in electrical installations often result in severe damage to the installation and to buildings, containers, enclosures or compartments. Arcing can cause overheating, which increases the volume of surrounding gas, resulting in a pressure rise. After a certain propagation time, the pressure wave strikes the wall of the container or building. To withstand the overpressure generated by an arc fault, the installation, building, container or compartment is usually equipped with an overpressure release flap or panel. The pressure relief flap or panel comprises a pre-weakened metal sheet of custom size up to several square meters. At a specifically defined overpressure, the pre-weakened metal sheet breaks and releases the overpressure.

A conventional pressure relief panel is a passive device that begins to open once a predefined opening pressure is exceeded. The key factors for pressure relief are opening pressure and opening time. These two parameters should be kept to a minimum in order to obtain the best results of the plant. However, the passive panels of the prior art require overpressure to start operation, so that the passive panel is activated when overpressure has become a fact and hit the wall. Therefore, there is a significant time delay before the flap opens. This time delay is a problem because the pressure continues to rise until the flap opens to release the pressure. Thus, known techniques include significant time delays in the opening of the flap, and the pressure may still reach critical levels within the container, building, enclosure, or compartment.

In view of the above, at least some of the problems in the art are overcome by providing an actively driven pressure relief system, a vessel, building, enclosure or compartment comprising an actively driven pressure relief system, and a method for relieving pressure from a vessel, building, enclosure or compartment.

Disclosure of Invention

In view of the above, an actively driven pressure relief system according to claim 1, a container, building, enclosure or compartment comprising an actively driven pressure relief system according to claim 8, and a method for relieving pressure from a container, building, enclosure or compartment having a panel and an electrical device inside the container according to claim 14. Further aspects, advantages and features of the present invention are apparent from the dependent claims, the description and the accompanying drawings.

According to an aspect of the invention, an actively driven pressure relief system for a container, building, enclosure or compartment having an electrical device is described. The actively driven pressure relief system includes a panel, and further includes: fault detection apparatus for detecting an arc fault in an electrical installation of a vessel, building, enclosure or compartment; and a triggering unit for triggering an open signal for the panel when an arc fault is detected by the fault detection device.

According to another aspect, there is provided a container, building, enclosure or compartment having an electrical apparatus comprising one or more electrical devices. The container, building, enclosure or compartment comprises: a panel as part of at least one wall or ceiling of a container, building, enclosure or compartment; and an active pressure release system according to embodiments described herein.

An actively driven pressure relief system according to embodiments described herein includes an actively operated panel that may be operated by a fault detection device (e.g., an arc fault detection device). Thus, the pressure relief panel opens faster than known systems. In particular, the panel according to embodiments described herein may have opened when the pressure in the container, building, enclosure or compartment increases. In known systems, the panel opens when the elevated pressure impacts the panel. Thus, when using a pressure relief system according to embodiments described herein, the pressure peaks are reduced and the reaction of the panel is faster. The pressure rise may be due to an arc fault in a vessel, building, enclosure or compartment having electrical devices. By triggering the pressure relief system according to embodiments described herein, for example by means of a triggering unit connected with the arc fault detection device, the pressure relief flap opens at the same time as or before the pressure rises.

Furthermore, the available wall area for mounting panels or tilt-gates is often limited. An active panel or flap as described herein is more efficient than known passive systems due to the faster reaction and opening of the panel. The use of an active panel or flap means that a lower total flap area is required.

An actively driven pressure relief system according to embodiments described herein helps to reduce or even avoid damage to the container when the overpressure in the container rises before the panel opens (e.g., using a passively driven panel as used in known systems). When damage is reduced or avoided, material can be saved. Furthermore, pressure relief systems according to embodiments described herein may also reduce repair time after an arc fault. Thus, an actively driven pressure relief system according to embodiments described herein saves time and cost and makes a container, building, enclosure, or compartment with electrical devices safer.

According to another aspect of the invention, a method is described for releasing pressure from a container, building, enclosure or compartment having a panel and an electrical device inside the container, building, enclosure or compartment. The method comprises the following steps: detecting an arc fault in the electrical device by a fault detection apparatus; triggering an open signal for a panel of a container, building, enclosure, or compartment upon detection of an arc fault by a fault detection device; and forwarding the opening signal to a panel of the container, building, enclosure, or compartment and initiating opening of the panel of the container, building, enclosure, or compartment.

According to another aspect of the invention, a method for equipping a container, building, enclosure or compartment with an actively driven pressure relief system with an electrical device is described. The method comprises the following steps: providing one or more panels in one or more walls or ceilings of one or more containers, buildings, enclosures or compartments; providing an electrical device with fault detection equipment; and connecting the fault detection device with a triggering unit for triggering a panel open signal when an arc fault is detected by the fault detection device.

The embodiments described herein allow for faster and safer operation of a pressure relief system for containers, buildings, enclosures or compartments having electrical devices therein. In the event of a failure of an electrical device in a container, building, enclosure or compartment, costs for maintenance and repair may be reduced.

Drawings

The subject matter of the invention will be explained in more detail below with reference to preferred exemplary embodiments shown in the drawings, in which:

FIG. 1 is a schematic view of an actively driven pressure relief system and a panel according to embodiments described herein;

FIG. 2 is a schematic view of a container, building, enclosure, or compartment provided with panels and an actively-actuated pressure relief system according to embodiments described herein;

FIGS. 3a and 3b show schematic diagrams of an actively driven pressure relief system and a panel in front and side views according to embodiments described herein;

FIG. 4 shows a schematic view of a panel for an actively driven pressure relief system according to embodiments described herein; and

fig. 5 shows a flow chart of a method for releasing pressure from a container, building, enclosure, or compartment according to embodiments described herein.

The reference symbols used in the drawings and their meanings are listed in abstract form in the list of reference symbols. In principle, identical components have the same reference symbols in the figures.

Detailed Description

According to embodiments described herein, an actively-actuated pressure relief system is provided that may be particularly useful in containers, buildings, enclosures, and compartments having electrical devices. For example, actively driven pressure relief systems may be used in power systems, electrical grids, in installed products, in semiconductor applications, with power converters, switchgear, circuit breakers, motors and generators, and in other industrial applications. In general, an actively driven pressure relief system as described herein may be used for high power rectifiers and high current rectifiers.

Fig. 1 shows a schematic view of an actively driven pressure relief system 100 and a panel 101 according to embodiments described herein. The actively driven pressure relief system 100 as shown in fig. 1 has a fault detection device 102, in particular an arc fault detection device, and a triggering unit 103. In some embodiments, the actively operated pressure relief system 100 includes an interface 104, the interface 104 for relaying a signal from the trigger unit to a panel of the container, building, enclosure, or compartment, or for relaying a signal from the trigger unit to an opening mechanism of the actively operated pressure relief system. Further shown in fig. 1 is an electrical device 105, the electrical device 105 typically being placed in a container, building, enclosure, or compartment (not shown in fig. 1). The electrical device may be of the kind listed above for which an actively driven pressure relief system according to embodiments described herein may be used. The actively operated pressure relief system may further comprise drive electronics. According to some embodiments, the panel 101 may comprise a section of sheet metal working as part of a wall of a building, container or compartment. In the event of an arc fault, an arc detection device (or other suitable fault detection device) triggers the opening of the panel.

The fault detection device 102 is linked to the electrical apparatus 105 so as to be able to detect an arc fault in the electrical apparatus 105. For example, the fault detection device 103 may be physically connected to a component of an electrical apparatus for detecting arc faults. In one example, the fault detection device may measure one or more parameters of the electrical apparatus for controlling the electrical apparatus and checking whether an arc fault occurs. According to some embodiments, which can be combined with other embodiments described herein, the detection device may comprise respective sensors for sensing and measuring useful parameters, such as overcurrent, reverse current, pressure increase, temperature increase, transparency of gases in the environment, etc. According to some embodiments, the fault detection device may comprise a memory for storing thresholds for parameters controlled by the fault detection device. For example, the memory may include thresholds for pressure, temperature, over-current, and the like. According to some embodiments, the threshold value for the pressure increase may be generally between about 0.5kPa and about 15kPa, more generally between about 1kPa and about 15kPa, and even more generally between about 1kPa and about 10 kPa. In some embodiments, the electrical device itself may have such a measurement unit for controlling the operation of the electrical device. According to some embodiments, the electrical device and the fault detection apparatus may exchange information relating to the operation of the electrical device and the occurrence of an arc fault, in particular wirelessly.

According to some embodiments, the fault detection device 102 may include an arc detection device, an over-current detection device, a reverse current detection device, or a pressure rise detection device. The detection device 102 may detect other parameters indicative of an upcoming pressure rise in the container, building, enclosure, or compartment.

The actively driven pressure relief system 100 as shown in fig. 1 further comprises a triggering unit 103. Typically, the triggering unit 103 is connected with the fault detection device 102 or is capable of exchanging information with the arc detection device 102, e.g. in a wireless manner. In the embodiments described herein, the triggering unit 103 triggers an opening signal for opening the panel 101 when the fault detection device 102 detects an arc fault. The opening signal generated and triggered by the triggering unit 103 may be, for example, an electric signal, a radio signal, a wireless signal, or the like.

In some embodiments, the trigger unit 103 may be part of the fault detection device 102, e.g. the fault detection device and the trigger unit are one unit comprising both. In one example, a portion of the detection device 102 may be capable of generating a trigger signal, and thus may employ the functionality of the trigger unit 103. According to some embodiments, the trigger unit may be part of the panel, for example by being located at, connected to or mounted to the actively driven panel. In some embodiments, the detection device and the trigger unit may be comprised in the panel, for example by being located at the panel or by being mounted or connected to the panel.

As shown in fig. 1, in some embodiments, the actively-actuated pressure relief system 100 may include an interface 104, the interface 104 for relaying a signal from the trigger unit to the panel 101 of the container, building, enclosure, or compartment. The interface 104 may be a connection that allows a signal from the trigger unit 103 to reach the panel 101. According to some embodiments, the interface may also be capable of transmitting and converting signals. In some embodiments, the interface 104 may be capable of ensuring proper transmission from the trigger unit 103 to the panel 101. According to some embodiments, the interface 104 may be connected to a mechanism for opening the panel (as described in detail below with respect to fig. 3a and 3 b).

As described above and according to embodiments described herein, the fault detection device 102 and the triggering unit 103 allow for opening of the panel 101 before significant (and damaging) pressure within the container, building, enclosure, or compartment 110 rises.

A container 110 according to embodiments described herein can be seen in fig. 2. The container 110 has a plurality of walls, with walls 111, 112, 114, 115 and a top panel 113 visible in FIG. 2. The container as shown in fig. 2 comprises two panels or flaps 101 in different walls of the container. According to some embodiments, a container, building, enclosure, or compartment according to embodiments described herein may include more than two panels, or may include only one panel. In some embodiments, one or more panels may be located in one wall or ceiling of a container, building, enclosure, or compartment. In other embodiments, the panels or flaps are distributed on different walls or ceilings of the container, building, enclosure or compartment. The flap size or panel size may be adapted to a particular building, container, enclosure, or compartment. One and more than one different size flap can be installed. In some embodiments, a combination of conventional passive and active flaps or panels may also be considered. In some embodiments, the overhead doors are typically located near the equipment where the risk of arc faults is highest. Furthermore, the flap can be distributed between the wall and a possible ceiling to effectively discharge the overpressure.

In fig. 2, although not shown, a vessel, building, enclosure, or compartment 110 includes an electrical device and an actively-actuated pressure relief system, such as actively-actuated pressure relief system 100 as shown and described with respect to fig. 1. The detection device and the triggering unit of the actively driven pressure relief system according to embodiments described herein initiate the opening of the panel in case of a fault, in particular an arc fault, in the electrical apparatus. Signal generation and signal transmission is faster than pressure rise in a container, building, enclosure, or compartment. Thus, while in known systems, pressure in a vessel opens a panel (hereinafter passive panel) when overpressure impacts the vessel wall or ceiling, the panel as described in embodiments herein may be opened before the pressure reaches the vessel wall or ceiling.

The electrical apparatus comprises one or more electrical devices. For example, the electrical devices may include high power rectifiers, high current rectifiers, power converters, switching devices, circuit breakers, motors, generators, and the like. According to some embodiments, the power range of the electrical devices referred to herein may typically be between about 5MVA to about 350MVA, more typically between about 5MVA to about 300MVA, even more typically between about 10MVA to about 250 MVA. In some embodiments, the electrical device may refer to a substation in the range of about 10 MVA. Generally, in some embodiments, the rectifier may be in the range of about 250 MVA.

According to some embodiments, the panel that can be actively opened is located in a wall or ceiling of the container, building, enclosure or compartment that is closest to the electrical equipment of the electrical installation that has the highest risk of arc fault. For example, if the equipment of the electrical installation with the highest risk of arc fault is closest to the ceiling of the container, an actively operating pressure relief panel according to embodiments described herein may be placed in the ceiling. In some embodiments, more than one actively driven panel may be provided in a wall and/or ceiling of a container, building, enclosure or compartment if multiple pieces of equipment of an electrical installation within the container, building, enclosure or compartment have similar risks of arc faults, or if the risk of each piece of equipment exceeds a defined threshold.

In some embodiments, each of the electrical devices in the electrical installation having a defined risk of arc fault is connected to an actively operating pressure relief system according to embodiments described herein. The respective panel may be arranged in the wall closest to the specific device. In this way, a very safe and fast-reacting manner of operation of the electrical device is possible. In other embodiments, and depending on the application and the type of electrical installation, only a few electrical devices in the electrical installation may be provided with one actively driven pressure relief system.

According to some embodiments, after operation of the actively driven pressure relief system, the panel may be manually closed and the system is ready to operate again. This saves time and cost as compared to passive tilt-doors, which typically need to be replaced or repaired after use.

In some embodiments, which can be combined with other embodiments described herein, an actively-actuated pressure relief system as described herein includes a panel opening mechanism or a flap opening mechanism. According to some embodiments, the trigger unit is adapted to generate a signal for the panel opening mechanism for opening the panel. Further, the interface 104 may be an interface between the trigger unit 103 and the panel opening mechanism. In particular, the interface 104 may be adapted to connect the triggering unit with the panel opening mechanism.

In some embodiments, the panel opening mechanism may be adapted to open the panel without damaging the panel, i.e., in a non-destructive manner. Examples of such panel opening mechanisms are given below. For example, a flip door or panel according to embodiments described herein may be secured on one side with a hinge while being locked on the other side with a mechanical arrangement, as shown in fig. 3a and 3b described below.

Fig. 3a shows a schematic front view of an actively operated pressure relief panel 101 according to embodiments described herein. The panel 101 includes a flap 130. the flap 130 may be, for example, a metal plate or any other suitable material, such as a portion of a wall or ceiling suitable for use as a container, building, enclosure, or compartment having electrical devices therein. The shape of the panel may vary depending on the respective application, the kind of container in which the panel is used, the kind of wall or ceiling on which the panel is mounted, the material, the environment, the electrical device and the corresponding operating parameters of the electrical device, etc. A panel 101 according to some embodiments described herein may include a frame 107, through which frame 107 the panel may be mounted to a wall or ceiling of a container, building, enclosure, or compartment. In some embodiments, for example in embodiments where the trigger unit and/or the detection device is part of a panel, the trigger unit and/or the detection device may be mounted to a frame of the panel or may be (directly) connected to the panel, for example as part of the panel. The frame 107 may completely surround the panel and, in some embodiments, may be adapted to mount the components of the active drive pressure relief panel 101 described above. In the embodiment shown in fig. 3a, the frame 107 is used, for example, to mount the hinge 106 to the flap 130. In other embodiments, hinge 106 may be mounted to a swing door without a frame.

The actively operated pressure release system according to some embodiments described herein further comprises a panel opening mechanism, such as a panel release mechanism 108, the panel release mechanism 108 being mounted to the panel 101 as shown in fig. 3 a. In the example of an actively operated pressure relief panel shown in fig. 3a, the panel opening mechanism includes a relief solenoid 131. In fig. 3b, the actively operated pressure relief panel 101 of fig. 3a is shown in a side view. Fig. 3b shows the flap 130, the hinge 106, the panel opening mechanism 108 of the actively operated pressure relief system 100, and the interface 104, the interface 104 electrically connecting the panel opening mechanism 108 and the triggering unit 103 (not shown in fig. 3a and 3 b). The panel opening mechanism 108 as shown in fig. 3b includes a solenoid 131, a shaft 132, and a spring 133 to open the flap 130. Furthermore, the wall 111 can be seen in fig. 3b, the panel 101 being mounted to the wall 111.

Upon detection of an arc fault in an electrical device within a container, building, enclosure or compartment, the detection apparatus will detect the fault and notify the trigger unit so that the trigger unit generates a signal. The signal is transmitted to the panel opening mechanism 108, in particular the solenoid 131, via the interface 104 (as shown by the transmission line in fig. 3 b). The solenoid 131 is adapted to open or move a shaft 132 holding the panel to the wall 111 upon receiving a signal from the triggering unit. When the shaft 132 is released, the preloaded spring 133 forces the panel 130 to open in a wide manner, releasing pressure from the container, building, enclosure, or compartment having the electrical device that generated the arc fault. Due to the hinge 106, when the panel 130 is released from the wall, the panel 130 swings open and is not lost or damaged. Thus, the opening mechanism of an actively operated pressure relief system according to embodiments described herein works in a non-destructive manner.

In addition to examples having an opening mechanism that includes a solenoid and a spring, other embodiments of a panel opening mechanism may be used, such as an electric actuator, a solenoid, a pyrotechnic device, compressed gas, or a preloaded mechanical spring. Generally, two different solutions can be considered for the panel opening mechanism. A first solution is to release and open the panel from the container structure by means of a release mechanism operated by an electric actuator, solenoid, pyrotechnic device or similar device. A second solution consists in preparing the panel with a pyrotechnic device which, upon triggering, breaks the metal plate. Thus, the second solution may break the panel when it is opened. After activation of the actively operating pressure relief panel described herein using the second solution, the panel must be replaced. With a first solution, an example of which is shown in fig. 3a and 3b, the panel can be reused after activation of an actively operated pressure relief system according to embodiments described herein.

Fig. 4 shows an example of destructive opening of a panel. In fig. 4, an actively operated pressure relief system 101 is shown. The panel is surrounded by a frame 107, as described above with respect to fig. 3 a. A pyrotechnic charge 120 is placed on the panel. Typically, the pyrotechnic charge is selected to be capable of fracturing the panel upon receipt of a trigger signal via the interface 104.

According to embodiments, which can be combined with other embodiments described herein, the housing (container, building, enclosure or compartment) is fluid-tight (in particular airtight). According to embodiments, which can be combined with other embodiments described herein, the panel in the closed state provides a barrier between the interior volume of the housing and the environment outside the housing before opening in a destructive manner. The barrier may in particular be fluid-tight (in particular air-tight) and/or may prevent pressure equalization across the barrier. By opening the panel in a destructive manner, the barrier is removed, allowing for example pressure equalization.

According to embodiments, which can be combined with other embodiments described herein, a panel for destructively opening the panel can comprise a combination of at least two materials, so as to destroy the panel at a point of contact of the at least two materials. The at least two materials may form a predetermined line or point of disruption in the panel, such as to disrupt the panel using a panel opening mechanism. The predetermined breaking point or breaking line may have a regular shape or a random shape.

According to some embodiments, which can be combined with other embodiments described herein, the panel opening mechanism can be configured to damage the panel by, for example, piercing, tearing, or rupturing the panel.

According to some embodiments, which can be combined with other embodiments described herein, the panel opening mechanism can blow away at least a portion of the panel or the entire panel. At least a portion of the faceplate may be a replaceable insert that is inserted into the faceplate, or the entire faceplate may be a replaceable portion.

Destructive opening includes any opening of the panel that is effected in an irreversible manner such that the panel cannot thereafter completely close the housing.

Opening the panel in a destructive manner has the advantage that the reaction time is particularly fast. In addition, it provides an indication of arc faults that typically require maintenance. Since arc faults require maintenance anyway, destructive opening does not significantly increase the maintenance requirements, while safety and reliability are improved.

Fig. 5 shows a flow chart of a method of releasing pressure from a container, building, enclosure or compartment. The container, building, enclosure or compartment has a sheet metal flap on at least one of the panels, such as walls or ceiling, for releasing the overpressure from the container, building, enclosure or compartment. The container, building, enclosure or compartment further comprises an electrical device, wherein the one or more electrical apparatuses are part of the electrical device. The method 200 as shown in fig. 5 includes: in block 201, an arc fault in an electrical device is detected by a fault detection apparatus. In particular, the fault detection device may be a fault detection device as described in the above embodiments. In some examples, the fault detection device may be an arc detection device, an over-current detection device, a reverse current detection device, or a pressure rise detection device. The detection may be performed via a physical connection of the fault detection device with the electrical equipment of the electrical apparatus, or may be performed without such a connection (e.g. wirelessly), or by measuring parameters surrounding the electrical equipment, such as pressure, temperature, transparency, etc.

In block 202, the method 200 includes triggering an open signal for a panel. For example, if the detection device detects an arc fault, the trigger unit may generate an open signal for the panel. The opening signal may be an electrical signal, a radio signal, a wireless signal, etc. The trigger unit may be a trigger unit as described in relation to fig. 1. In particular, the triggering unit may be connected to the detection unit. In some embodiments, the trigger unit may be part of the detection unit.

In block 203, an open signal for the panel is forwarded. According to some embodiments described herein, the signal may be forwarded by an interface between the trigger unit and the actively operated opening mechanism of the pressure release panel. Further, block 203 includes initiating opening of a panel of the container, building, enclosure, or compartment. In some embodiments, and as described in detail with respect to fig. 3a and 3b, opening may be initiated by an opening signal that activates a panel opening mechanism (such as a solenoid, an electrical actuator, compressed gas, a preloaded mechanical spring, or a pyrotechnic device or material that blows off the panel).

According to some embodiments, which can be combined with other embodiments described herein, detecting an arc fault in an electrical device includes detecting an arc, an overcurrent, a reverse current, and a pressure rise. For example, detecting the parameters may include sensing and measuring the parameters at regular intervals or continuously.

In some embodiments, a second method is provided for equipping a container, building, enclosure, or compartment having an electrical device therein with an actively-actuated pressure relief system. A second method comprises providing one or more panels in one or more containers, buildings, enclosures or compartment walls or ceilings. The size, shape and location of the one or more panels may prevent high overpressure in the event of an arc fault in the electrical equipment of the electrical apparatus. Furthermore, the second method comprises equipping the electrical device with a fault detection device, for example, as described in detail in the above embodiments. The second method further comprises connecting the fault detection device with a triggering unit for triggering a panel open signal when an arc fault is detected by the fault detection device. In general, the trigger unit may be a trigger unit as described in the above embodiments; and may for example be part of the detection device. Further, in some embodiments, the second method may include connecting the trigger unit with the panel via the interface. In particular, the signal triggered by the trigger unit may be forwarded to the panel via the interface. In some embodiments, the interface is connected to an opening mechanism of the panel, as exemplarily described with respect to fig. 3a, 3b, and 4. For details, reference is made to the embodiments described in detail above.

In some embodiments, equipping the electrical device with a fault detection device may include equipping the electrical device with an arc detection device, an over-current detection device, a reverse current detection device, and a pressure rise detection device.

Although the present invention has been described based on some preferred embodiments, it should be understood by those skilled in the art that these embodiments should not limit the scope of the present invention in any way. Any variations and modifications of the embodiments herein described should be within the purview of one of ordinary skill in the art and the understanding of the present disclosure without departing from the spirit and intended scope of the invention, and therefore, the scope of the invention as defined by the appended claims.

Reference numerals

100 actively operated pressure relief system

101 actively operated pressure relief panel

102 fault detection device

103 trigger unit

104 interface

105 electric device

110 containers, buildings, enclosures, or compartments

111. 112, 114, 115 container, building, housing or compartment wall

106 hinge

107 frame

108 opening mechanism

120 pyrotechnic charge

130 flap door or panel

131 solenoid

132 shaft

133 spring

200 method

201. 202, 203 boxes