Fault detection device

Abstract

This application provides a fault detection device, relating to the field of lightning protection equipment. The fault detection device includes a surge arrester base, a lead wire, and an automatic detection mechanism. The end of the lead wire passes through the side wall of the surge arrester base and extends into the interior of the surge arrester base. The automatic detection mechanism includes a first conductive element, a triggering component, and a connecting component. The first conductive element is fixed inside the surge arrester base. The triggering component is located inside the surge arrester base and connected to the end of the lead wire. The connecting component is fixed inside the surge arrester base and, along the axial direction of the lead wire, is spaced apart from the first conductive element. The triggering component drives the connecting component to move closer to the first conductive element to signal connect with it. The fault detection device provided by this application solves the technical problem in the prior art where the sensitivity of the automatic monitoring of surge arrester monitors is affected by ambient temperature and seasonal climate.

Description

Technical Field

[0001] This application relates to the field of lightning protection equipment, and more specifically, to a fault detection device. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from high transient overvoltages and to limit the duration and amplitude of follow current. Surge arresters are typically connected between the power grid conductor and the ground wire, and sometimes also connected near the windings of electrical equipment or between conductors, to prevent damage to equipment from lightning and other overvoltages. To improve the reliability of lightning protection for power transmission and distribution equipment, fault detection of surge arresters is necessary.

[0003] In existing technologies, ground leakage current and surge arrester base temperature are collected by a monitor, and the leakage current and temperature information are transmitted to the back-end control system via a wireless communication control circuit. This allows the back-end control system to perform joint analysis of the surge arrester's temperature and ground leakage current to determine whether the surge arrester is faulty. However, the data collected by this monitor is affected by environmental humidity and seasonal climate, which can interfere with the sensitivity of automatic monitoring. Utility Model Content

[0004] The purpose of this application is to provide a fault detection device to alleviate the technical problem in the prior art where the sensitivity of the monitor used to monitor surge arresters is affected by ambient temperature and seasonal climate.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] The fault detection device provided by this utility model includes a surge arrester base, leads, and an automatic detection mechanism;

[0007] The end of the lead wire passes through the side wall of the surge arrester base and extends into the interior of the surge arrester base;

[0008] The automatic detection mechanism includes a first conductive element, a triggering component, and a connecting component. The first conductive element is fixed inside the surge arrester base. The triggering component is located inside the surge arrester base and is connected to the end of the lead wire.

[0009] The connecting component is fixed inside the surge arrester base. Along the axial direction of the lead, the connecting component is spaced apart from the first conductive element. The triggering component drives the connecting component to move closer to the first conductive element to signal connect with the first conductive element.

[0010] Furthermore, the triggering component includes a temperature guide frame, a deformable component, and a first magnetic component, and the connecting component includes a second magnetic component;

[0011] The temperature guide frame is installed at the end of the lead wire, the deformable part is installed on the temperature guide frame, and the first magnetic part is installed on the deformable part. When the temperature of the temperature guide frame increases, the deformable part bends and deforms.

[0012] The second magnetic element is opposite to the first magnetic element and has opposite magnetic properties.

[0013] Furthermore, the first conductive element is ring-shaped, and the triggering component is located inside the first conductive element;

[0014] The temperature guide frame is annular, and the deformable part is installed on the outer wall of the temperature guide frame, and the first magnetic part is installed on the side wall of the deformable part away from the temperature guide frame.

[0015] Furthermore, the temperature guide frame includes a first frame and a second frame, with one end of the first frame connected to the end of the lead wire and the other end connected to the second frame;

[0016] The outer diameter of the first frame gradually increases from the end near the lead wire to the end near the second frame. One end of the deformable member is installed on the outer wall of the first frame and fits against the outer wall of the first frame.

[0017] Furthermore, the temperature-conducting frame is provided with side grooves, and the deformable parts are staggered with the side grooves.

[0018] Furthermore, the triggering component includes a fixing member and a grounding connector;

[0019] The fixing member is connected to the end of the lead wire, and the temperature guide frame is mounted on the fixing member;

[0020] The grounding connector is installed on the side of the temperature guide frame away from the fixing component.

[0021] Furthermore, the connecting component includes a support member, a rotating member, and a second conductive member;

[0022] The support is installed on the arrester base, the rotating member is rotatably connected to the support, and the axis of rotation is perpendicular to the axis of the lead wire;

[0023] The second conductive element is connected to the rotating element at an angle, the second magnetic element is mounted on the rotating element, and the second conductive element and the second magnetic element are spaced apart along the axial direction of the lead wire.

[0024] Furthermore, multiple support members, rotating members, and second conductive members are provided, with multiple support members surrounding the outer periphery of the triggering component, and multiple rotating members rotatably connected to multiple support members in a one-to-one correspondence;

[0025] The second conductive element and the second magnetic element are respectively installed on the two sides of the rotating element.

[0026] Furthermore, the connecting component also includes a spring piece, which is connected to the rotating member and the support member or surge arrester base.

[0027] Furthermore, the connecting component includes a mounting frame, on which the support member is mounted.

[0028] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows:

[0029] The fault detection device provided by this utility model includes a surge arrester base, a lead wire, and an automatic detection mechanism. The end of the lead wire passes through the side wall of the surge arrester base and extends into the interior of the surge arrester base. The automatic detection mechanism includes a first conductive element, a triggering component, and a connecting component. The first conductive element is fixed inside the surge arrester base. The triggering component is located inside the surge arrester base and connected to the end of the lead wire. The connecting component is fixed inside the surge arrester base and, along the axial direction of the lead wire, is spaced apart from the first conductive element. The triggering component drives the connecting component to move closer to the first conductive element to signal communicate with it. One side of the surge arrester base is a detector, and the other side is a controller for receiving signals and driving the device to operate.

[0030] The lead wire is installed inside the arrester base. The triggering component can drive the connecting component to move so as to electrically connect with the first conductive element, so that the electrical signal can be transmitted to the controller, thereby achieving the effect of automatic detection.

[0031] This fault detection device can automatically detect high currents under the action of an automatic detection mechanism, thus avoiding the influence of environment and temperature on the detection device. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the fault detection device provided in the embodiments of this application;

[0034] Figure 2 This is a schematic diagram of the internal structure of the fault detection device provided in the embodiments of this application;

[0035] Figure 3This is a schematic diagram of the automatic detection mechanism in the fault detection device provided in the embodiments of this application;

[0036] Figure 4 This is a schematic diagram of the triggering component in the fault detection device provided in the embodiments of this application;

[0037] Figure 5 This is a schematic diagram of the structure of the connecting component in the fault detection device provided in the embodiments of this application.

[0038] icon:

[0039] 1-Surge arrester base; 2-Lead wire; 3-Automatic detection mechanism; 31-Triggering component; 311-Fixing component; 312-Temperature guide frame; 313-Ground wire connection frame; 314-Side groove; 315-Deformable component; 316-First magnetic component; 32-Connecting component; 321-Fixing frame; 322-Support component; 323-Spring; 324-Rotating component; 325-Second conductive component; 326-Second magnetic component; 33-First conductive component. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] High-voltage electrical equipment refers to electrical devices with a rated voltage exceeding 1000V (including 1000V) in power systems. These devices play a crucial role in power systems, responsible for the transmission, distribution, conversion, and protection of electrical energy. There are many types of high-voltage electrical equipment, among which protective devices include surge arresters. A surge arrester is an electrical device used to protect electrical equipment from high transient overvoltages and to limit the follow current time and often the follow current amplitude. Surge arresters are usually connected between the power grid conductor and the ground wire, and sometimes also connected beside the electrical windings or between conductors to prevent damage to the equipment from overvoltages such as lightning. To improve the reliability of lightning protection for power transmission and distribution equipment, fault detection of surge arresters is necessary. In existing technology, a monitor collects the ground leakage current and the temperature of the surge arrester base 1. This leakage current and temperature information are then transmitted to the backend control system via a wireless communication control circuit. The backend control system can then perform joint analysis of the surge arrester's temperature and ground leakage current to determine if the surge arrester is faulty. However, the data collected by this monitor is affected by environmental humidity and seasonal climate, which can interfere with the sensitivity of automatic monitoring.

[0044] See Figures 1 to 5 In view of this, the fault detection device provided in this embodiment of the present invention includes a surge arrester base 1, a lead wire 2, and an automatic detection mechanism 3; the end of the lead wire 2 passes through the side wall of the surge arrester base 1 and extends into the interior of the surge arrester base 1; the automatic detection mechanism 3 includes a first conductive element 33, a triggering component 31, and a connecting component 32, the first conductive element 33 being fixed inside the surge arrester base 1; the triggering component 31 being located inside the surge arrester base 1 and connected to the end of the lead wire 2; the connecting component 32 being fixed inside the surge arrester base 1, and along the axial direction of the lead wire 2, the connecting component 32 and the first conductive element 33 being spaced apart, the triggering component 31 driving the connecting component 32 to move towards the first conductive element 33 to signal communicate with the first conductive element 33.

[0045] Specifically, a detector is located on one side of the surge arrester base 1, and a controller is located on the other side of the surge arrester base 1, used to receive signals and drive the device for operation. Furthermore, a lead wire 2 is fixedly connected to the upper end of the surge arrester base 1, and a support is fixedly connected to the lower end of the surge arrester base 1, with the lower end of the lead wire 2 penetrating into the interior of the surge arrester base 1. An automatic detection mechanism 3 is installed inside the surge arrester base 1, and the lower end of the connecting component 32 penetrates into the interior of the support.

[0046] Lead 2 is installed inside the surge arrester base 1. The trigger component 31 can drive the connecting component 32 to move, so as to electrically connect with the first conductive element 33, so that the electrical signal can be transmitted to the controller, thereby achieving the effect of automatic detection. Under the action of the automatic detection mechanism 3, this fault detection device can automatically detect when a large current passes through, and avoid the detection device being affected by the environment and temperature.

[0047] The structure of the fault detection device is described in detail below:

[0048] See Figures 1 to 4 In an optional embodiment of this utility model, the triggering component 31 includes a temperature guide frame 312, a deformable part 315, and a first magnetic part 316, and the connecting component 32 includes a second magnetic part 326; the temperature guide frame 312 is installed at the end of the lead wire 2, the deformable part 315 is installed on the temperature guide frame 312, and the first magnetic part 316 is installed on the deformable part 315; the temperature of the temperature guide frame 312 increases and the deformable part 315 bends and deforms; the second magnetic part 326 is opposite to the first magnetic part 316 and has opposite magnetism.

[0049] Specifically, the deformable component 315 includes a bimetallic strip, and a first magnetic component 316 is fixedly connected to the side of the bimetallic strip away from the temperature-conducting frame 312; the first magnetic component 316 is a permanent magnet. The bimetallic strip bends and deforms under the influence of metal temperature. In this embodiment, the first magnetic component 316 is fixed to the end of the bimetallic strip. Under the influence of metal temperature, the end of the bimetallic strip bends upward, causing the first magnetic component 316 to move; the large travel distance at the end helps improve efficiency. After the first magnetic component 316 moves, the distance between the first magnetic component 316 and the second magnetic component 326 decreases, allowing the first magnetic component 316 to magnetically engage with the second magnetic component 326, driving the second magnetic component 326 to move, thereby driving the connecting component 32 to move and connect with the first conductive component 33.

[0050] When a large current passes through, the temperature guide 312 will generate heat. At this time, under the action of the bimetallic strip, the bimetallic strip will drive the first magnetic element 316 to move closer to the second magnetic element 326. Whenever a large current passes through, a sensitive automatic detection effect will be formed.

[0051] In an optional embodiment of this utility model, the first conductive element 33 is annular, and the trigger component 31 is located inside the first conductive element 33; the temperature guide frame 312 is annular, and the deformable element 315 is installed on the outer wall of the temperature guide frame 312, and the first magnetic element 316 is installed on the side wall of the deformable element 315 away from the temperature guide frame 312.

[0052] Specifically, the first conductive element 33 includes a metal ring, the outer wall of which is connected to the inner wall of the surge arrester base 1 via a bracket, thereby fixing the metal ring inside the surge arrester base 1. A triggering component 31 is provided on the inner side of the metal ring. Furthermore, multiple deformable elements 315 are provided, and the multiple deformable elements 315 are spaced apart circumferentially along the temperature-conducting frame 312.

[0053] The first conductive element 33 is ring-shaped, which increases the area that the first conductive element 33 can connect with the connecting component 32; the temperature guide frame 312 is correspondingly ring-shaped, which helps the triggering component 31 to trigger the connecting component 32.

[0054] In an optional embodiment of this utility model, the temperature guide frame 312 includes a first frame and a second frame. One end of the first frame is connected to the end of the lead wire 2, and the other end is connected to the second frame. The outer diameter of the first frame gradually increases from the end near the lead wire 2 to the end near the second frame. One end of the deformable member 315 is installed on the outer wall of the first frame and fits against the outer wall of the first frame.

[0055] Specifically, the first frame and the second frame are integrally formed. The head end of the deformable part 315 is installed on the first frame, and the side of the deformable part 315 near the head end is attached to the outer wall of the first frame; the tail end of the deformable part 315 is equipped with a first magnetic part 316.

[0056] The outer diameter of the first frame gradually increases from top to bottom, and the outer diameter of the second frame is equal to and remains unchanged with the maximum outer diameter of the first frame. This increases the contact area between the deformable part 315 and the temperature guide frame 312, making full use of the temperature change of the temperature guide frame 312 to control the deformation of the deformable part 315.

[0057] In an optional embodiment of this utility model, the temperature guide frame 312 is provided with a side groove 314, and the deformable part 315 is staggered with the side groove 314.

[0058] Specifically, the surface of the annular temperature guide frame 312 is provided with multiple side grooves 314, which are distributed in a ring shape along the surface of the temperature guide frame 312, and the side grooves 314 are interspersed with bimetallic strips.

[0059] The side grooves 314 on the surface of the temperature guide frame 312 prevent excessive current from causing excessive temperature and affecting the operation of the internal devices of the surge arrester base 1.

[0060] In an optional embodiment of this utility model, the trigger component 31 includes a fixing member 311 and a ground wire connection frame 313; the fixing member 311 is connected to the end of the lead wire 2, and the temperature guide frame 312 is installed on the fixing member 311; the ground wire connection frame 313 is installed on the side of the temperature guide frame 312 away from the fixing member 311.

[0061] Specifically, the fastener 311 includes a retaining ring, which is attached to the end of the lead wire 2.

[0062] A retaining ring is fixedly connected to the lower end of the surface of the lead wire 2, and a temperature guide bracket 312 is fixedly connected to the lower end of the retaining ring. A ground wire connection bracket 313 is fixedly connected to the lower end of the temperature guide bracket 312. The retaining ring enables the temperature guide bracket 312 to be installed at the end of the lead wire 2.

[0063] See Figure 2 , Figure 3 and Figure 5In an optional embodiment of this utility model, the connecting component 32 includes a support member 322, a rotating member 324, and a second conductive member 325; the support member 322 is installed on the arrester base 1, the rotating member 324 is rotatably connected to the support member 322, and the rotation axis is perpendicular to the axis of the lead wire 2; the second conductive member 325 is connected to the rotating member 324 at an angle, the second magnetic member 326 is installed on the rotating member 324, and the second conductive member 325 and the second magnetic member 326 are spaced apart along the axial direction of the lead wire 2.

[0064] Specifically, the support member 322 is arranged along the axis of the lead wire 2, and the rotating member 324 is hinged to the top end of the support member 322, so that the rotating member 324 can rotate around the support member 322. The second conductive member 325 includes a conductive rod.

[0065] The rotating component 324 drives the second conductive component 325 to perform synchronous arc-shaped motion, thereby enabling the second conductive component 325 to form an electrical connection with the first conductive component 33 during the motion, and thus transmit the electrical signal to the controller.

[0066] In an optional embodiment of this utility model, multiple support members 322, rotating members 324, and second conductive members 325 are provided. Multiple support members 322 surround the outer periphery of the trigger component 31, and multiple rotating members 324 are rotatably connected to multiple support members 322 in a one-to-one correspondence. The second conductive member 325 and the second magnetic member 326 are respectively installed on the two sides of the rotating member 324.

[0067] Specifically, the number of support members 322, rotating members 324, and second conductive members 325 are all equal to the number of first magnetic members 316. The trigger assembly 31 is located among the multiple support members 322, and the second magnetic member 326 on each rotating member 324 is opposite to the corresponding first magnetic member 316. The second conductive members 325 and second magnetic members 326 are respectively installed on both sides of the rotating member 324, achieving the opposite orientation of the first magnetic member 316 and the second magnetic member 326 and making the overall structure compact. Furthermore, the second conductive members 325 and second magnetic members 326 are respectively installed at both ends of the rotating member 324, extending the movement path of the second conductive members 325 and the second magnetic members 326 to ensure connectivity.

[0068] Driven by the deformable member 315, the first magnetic member 316 approaches the second magnetic member 326. When the distance between the first magnetic member 316 and the second magnetic member 326 reaches a certain value, the first magnetic member attracts the second magnetic member 326 to move. When the second magnetic member 326 moves, it causes the rotating member 324 to rotate, thereby causing the second conductive member 325 to move to abut against the first conductive member 33.

[0069] In an optional embodiment of this utility model, the connecting component 32 further includes a spring piece 323, which is connected to the rotating component 324 and the support component 322 or the surge arrester base 1.

[0070] Specifically, one end of the spring piece 323 is connected to the rotating member 324, and the other end is fixedly connected to the support member 322, the surge arrester base 1, or the fixing frame 321 (same as the fixing frame 321 below).

[0071] The spring 323 serves to drive the rotating component 324 to reset.

[0072] In an optional embodiment of this utility model, the connecting component 32 includes a fixing frame 321, and the support member 322 is installed on the fixing frame 321.

[0073] Specifically, the fixing frame 321 is fixedly connected to the inner bottom wall of the support cylinder, and multiple support members 322 are fixedly connected to the upper end of the fixing frame 321.

[0074] The mounting bracket 321 enables the connection component 32 to be installed inside the surge arrester base 1.

[0075] As another embodiment of the connecting component 32, the connecting component 32 includes a support member 322, a sliding member, and a second conductive member 325; the support member 322 is installed on the surge arrester base 1, and the sliding member is slidably engaged with the support member 322; the second conductive member 325 is connected to the sliding member at an angle, and the second magnetic member 326 is installed on the top of the sliding member.

[0076] During the use of this fault detection device, when a large current is transmitted to the trigger component 31 through the lead wire 2, the temperature is transferred to the deformable part 315 through the temperature guide frame 312, causing the deformable part 315 to bend and deform. At this time, the bending of the deformable part 315 drives the first magnetic part 316 to move. Then, under the mutual attraction between the first magnetic part 316 and the second magnetic part 326, the second magnetic part 326 is driven to move towards the first magnetic part 316 synchronously.

[0077] When the second magnetic component 326 moves, the rotating component 324 drives the second conductive component 325 to perform synchronous arc-shaped motion, thereby causing the second conductive component 325 to contact the first conductive component 33 during the movement to form an electrical connection, which can then transmit electrical signals to the controller.

[0078] It is worth noting that, under normal conditions, the rotating part 324 moves away from the first magnetic part 316 by the action of the spring piece 323, so that the first magnetic part 316 and the second magnetic part 326 will not attract each other.

[0079] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0080] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fault detection device, characterized in that, include: Surge arrester base (1), lead wire (2) and automatic detection mechanism (3); The end of the lead wire (2) passes through the side wall of the surge arrester base (1) and extends into the interior of the surge arrester base (1); The automatic detection mechanism (3) includes a first conductive element (33), a triggering component (31) and a connecting component (32). The first conductive element (33) is fixed inside the arrester base (1). The triggering component (31) is located inside the arrester base (1) and is connected to the end of the lead wire (2). The connecting component (32) is fixed inside the arrester base (1) along the axial direction of the lead (2). The connecting component (32) is spaced apart from the first conductor (33). The triggering component (31) drives the connecting component (32) to move closer to the first conductor (33) to signal connect with the first conductor (33).

2. The fault detection apparatus according to claim 1, characterized by The triggering component (31) includes a temperature guide frame (312), a deformable part (315) and a first magnetic part (316), and the connecting component (32) includes a second magnetic part (326). The temperature guide frame (312) is installed at the end of the lead wire (2), the deformable part (315) is installed on the temperature guide frame (312), and the first magnetic part (316) is installed on the deformable part (315). When the temperature of the temperature guide frame (312) rises, the deformable part (315) bends and deforms. The second magnetic element (326) is opposite to the first magnetic element (316) and has opposite magnetic properties.

3. The fault detection device according to claim 2, characterized in that, The first conductive element (33) is ring-shaped, and the trigger component (31) is located inside the first conductive element (33); The temperature guide frame (312) is annular, and the deformable part (315) is installed on the outer wall of the temperature guide frame (312), and the first magnetic part (316) is installed on the side wall of the deformable part (315) away from the temperature guide frame (312).

4. The fault detection apparatus of claim 3, wherein The temperature guide frame (312) includes a first frame and a second frame. One end of the first frame is connected to the end of the lead wire (2), and the other end is connected to the second frame. The outer diameter of the first frame gradually increases from the end near the lead wire (2) to the end near the second frame. One end of the deformable member (315) is installed on the outer wall of the first frame and fits against the outer wall of the first frame.

5. The fault detection apparatus of claim 2, wherein The temperature guide frame (312) is provided with side grooves (314), and the deformable part (315) is staggered with the side grooves (314).

6. The fault detection apparatus of claim 2, wherein The triggering component (31) includes a fixing member (311) and a grounding connector (313). The fixing member (311) is connected to the end of the lead wire (2), and the temperature guide frame (312) is installed on the fixing member (311). The grounding connector (313) is installed on the side of the temperature guide frame (312) away from the fixing member (311).

7. The fault detection apparatus of claim 3, wherein The connecting component (32) includes a support (322), a rotating component (324), and a second conductive component (325); The support member (322) is installed on the arrester base (1), the rotating member (324) is rotatably connected to the support member (322), and the axis of rotation is perpendicular to the axis of the lead wire (2); The second conductive element (325) is connected at an angle to the rotating element (324), the second magnetic element (326) is mounted on the rotating element (324), and the second conductive element (325) and the second magnetic element (326) are spaced apart along the axial direction of the lead wire (2).

8. The fault detection apparatus of claim 7, wherein, Multiple support members (322), multiple rotating members (324) and multiple conducting members (325) are provided. Multiple support members (322) are arranged around the outer periphery of the trigger component (31). Multiple rotating members (324) are rotatably connected to multiple support members (322) in a one-to-one correspondence. The second conductive element (325) and the second magnetic element (326) are respectively installed on the two sides of the rotating element (324).

9. The fault detection apparatus of claim 7, wherein, The connecting component (32) further includes a spring (323) which is connected to the rotating member (324) and the support member (322) or the surge arrester base (1).

10. The fault detection apparatus of claim 7, wherein, The connecting component (32) includes a fixing frame (321), and the support (322) is mounted on the fixing frame (321).

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