Device and method suitable for collecting current and voltage fault information of protective layer

Abstract

The invention discloses a protective layer current and voltage fault information acquisition device and method, and belongs to the field of fault information acquisition equipment, the device comprises a supporting plate, at least one cable is arranged above the supporting plate, and each cable is provided with a current transformer and a voltage sensor; a protection mechanism is arranged on the top surface of the supporting plate and is used for shielding and protecting the current transformer and the voltage sensor; and an alarm mechanism is arranged on one side of the protection mechanism, is electrically connected with the current transformer and the voltage sensor, and is used for obtaining readings of the current transformer and the voltage sensor for early warning. According to the invention, voltage fault information of sheath current can be acquired through the current transformer and the voltage sensor, and the current transformer and the voltage sensor can be protected, so that the damage of external foreign matters to the current transformer and the voltage sensor can be reduced, the use safety of the current transformer and the voltage sensor is improved, and the service life of the current transformer and the voltage sensor is prolonged. And meanwhile, the later maintenance cost can be reduced.

Description

Technical Field

[0001] This application relates to the field of fault information acquisition equipment, and more specifically, to a device and method for acquiring fault information on sheath current and voltage. Background Technology

[0002] The sheath current and voltage fault information acquisition device is a specialized device for monitoring and protecting power cable systems. Its main function is to collect the current and voltage information of the power cable sheath in real time, so as to detect and locate faults in the cable system in a timely manner. The sheath current and voltage fault information acquisition device is an important guarantee for the safe operation of power cable systems and can effectively improve the reliability and stability of power systems.

[0003] However, existing sheath current and voltage fault information acquisition devices are easily affected by external foreign objects during use. This can affect stability, damage the acquisition equipment, reduce the accuracy of fault information acquisition, thereby reducing the effectiveness of the equipment and increasing the cost of later maintenance.

[0004] Therefore, there is an urgent need for a device suitable for collecting information on sheath current and voltage faults to solve the aforementioned problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a device for collecting information on sheath current and voltage faults. This device can collect information on voltage faults in the sheath current through current transformers and voltage sensors, and also protects the current transformers and voltage sensors. This reduces the damage to the current transformers and voltage sensors caused by external objects, improves the safety of their use, and also reduces the cost of later maintenance.

[0006] The present invention adopts the following technical solution.

[0007] The first aspect of the present invention discloses a device for collecting fault information of sheath current and voltage, including a tray, and at least one cable is arranged on the top of the tray. Each cable is fitted with a current transformer and a voltage sensor for collecting fault information of sheath current and voltage. The top surface of the tray is provided with a protective mechanism, which includes a limiting component disposed on the top surface of the tray and a shielding component inserted above the limiting component. The limiting component is connected to the bottom surface of the current transformer and the voltage sensor respectively. The protective mechanism is used to shield and protect the current transformer and the voltage sensor. An alarm mechanism is provided on one side of the protective mechanism. The alarm mechanism is electrically connected to the current transformer and the voltage sensor and is used to obtain the readings of the current transformer and the voltage sensor for early warning.

[0008] Furthermore, the limiting component includes a positioning frame disposed on the top surface of the tray, and slots are provided on both sides of the top of the inner cavity side walls of the positioning frame, wherein a lifting part is provided between two opposing slots; The top surface of the positioning frame has first notches on both sides and in the radial direction of the cable. The inner cavity of each first notch is provided with a first flame-retardant silicone strip. The outer wall of the positioning frame and on the side of the alarm mechanism has a first wire groove.

[0009] Furthermore, the supporting part includes a mounting rail, with its two ends respectively inserted into two opposing slot cavities. The top surface of the mounting rail and near both ends are provided with mounting holes, and mounting screws are inserted into the cavities of both mounting holes. The bottom end of the slot cavity is provided with an internal thread groove for rotating and mounting the bottom end of the mounting screw. At least one slider is slidably connected on the mounting rail, and a positioning frame is fixedly provided on the top surface of the slider.

[0010] Furthermore, the sidewalls of the slider are provided with internal threaded holes, one end of which extends into the inner cavity of the slider. A positioning screw is rotatably mounted inside the internal threaded hole, with one end of the positioning screw abutting against the side wall of the mounting rail.

[0011] Furthermore, grooves are provided on both sides of the two side walls of the positioning frame, and metal springs are provided in the inner cavities of the grooves, with the outer middle of the metal springs extending to the outer side of the inner cavity of the groove.

[0012] Furthermore, the shielding assembly includes a protective cover, and a second notch is provided on both sides of the bottom surface of the protective cover in the radial direction of the cable, and a second flame-retardant silicone strip is provided in the inner cavity of the second notch. A window is provided in the middle of the top surface of the protective cover, and a transparent plate is provided in the inner cavity of the window. A second groove is provided at the bottom of the outer wall of the protective cover and the side closest to the alarm mechanism, and a third flame-retardant silicone strip is provided in the inner cavity of the second groove.

[0013] Furthermore, the shielding assembly also includes a handle, which is disposed in the middle of the two side walls of the protective cover; Multiple warning stickers are affixed to the top surface of the protective cover and on both sides of the window.

[0014] Furthermore, the alarm mechanism includes a base box disposed on one side of the top surface of the tray, a cover is provided at the top opening of the base box, a control main board is provided on one side of the inner cavity of the base box, and a storage module and a communication module are provided on one side of the control main board. A touch screen is provided on one side of the top surface of the box cover, and a third groove is provided on one side wall of the box cover and on the side of the protective mechanism. A fourth flame-retardant silicone strip is provided in the inner cavity of the third groove.

[0015] Furthermore, the alarm mechanism also includes a buzzer, which is disposed on one side of the top surface of the cover and is used to emit an alarm sound.

[0016] The first aspect of the present invention discloses a method for collecting information on sheath current and voltage faults. The method for executing the device for collecting information on sheath current and voltage faults described in the first aspect includes the following steps: Install the sheath current and voltage fault information acquisition device, pass the cable through the current transformer and voltage sensor and place it inside the limit assembly; fasten the shielding assembly on the limit assembly, and connect the current transformer and voltage sensor to the alarm mechanism; through the current transformer and voltage sensor, the current and voltage of the sheath can be monitored in real time, and the monitoring data can be sent to the alarm mechanism to complete the acquisition of sheath current and voltage fault information.

[0017] Compared with the prior art, the beneficial effects of the present invention include at least the following: This application uses a tray that can be installed in a designated position via four fixing brackets, and can also be used to install and fix the limiting components in the protective mechanism; This application utilizes a limiting component to both install current transformers and voltage sensors, and to fasten a shielding component. When it is necessary to collect fault information on the cable sheath current and voltage, the user can first pass the cable through the current transformer and voltage sensor, and then fasten the shielding component onto the limiting component. This allows for the installation of the shielding component to be limited. Furthermore, the shielding component facilitates the viewing of the operating status of the current transformer and voltage sensor, while also providing shielding and protection for them. This protects the current transformer and voltage sensor, reducing the risk of damage from external objects and improving the safety of their use. It also reduces the cost of subsequent maintenance. This application uses a current transformer and a voltage sensor to monitor the current and voltage of the sheath in real time and send the monitoring data to the alarm mechanism. The alarm mechanism can process the data and wirelessly transmit it to the control center to alert the user, thereby improving cable safety. The entire process does not require the user to go to the site to collect data, further reducing the workload of the staff. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a schematic diagram of the bottom structure of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the protective mechanism structure of the present invention; Figure 5 This is a schematic diagram of the explosion structure of the protective mechanism of the present invention; Figure 6 This is a schematic diagram of the limiting component structure of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the supporting part of the present invention; Figure 8 This is a schematic diagram of the shielding component of the present invention; Figure 9 This is a schematic diagram of the exploded structure of the alarm mechanism of the present invention.

[0019] Explanation of the labels in the diagram: 1. Tray; 2. Mounting bracket; 3. Cable; 4. Current transformer; 5. Voltage sensor; 6. Protective mechanism; 61. Limiting assembly; 611. Positioning frame; 612. Slot; 613. Lifting part; 6131. ​​Mounting rail; 6132. Mounting hole; 6133. Mounting screw; 6134. Slider; 6135. Internal threaded hole; 6136. Positioning screw; 6137. Positioning bracket; 614. First notch; 615. First flame-retardant silicone strip; 616. Groove; 617. Metal spring; 6 18. First cable tray; 62. Shielding assembly; 621. Protective cover; 622. Second notch; 623. Second flame-retardant silicone strip; 624. Window; 625. Transparent panel; 626. Second cable tray; 627. Third flame-retardant silicone strip; 628. Handle; 629. Warning sticker; 7. Alarm mechanism; 71. Base box; 72. Box cover; 73. Control main board; 74. Storage module; 75. Communication module; 76. Touch screen; 77. Third cable tray; 78. Fourth flame-retardant silicone strip; 79. Buzzer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention.

[0021] Please see Figure 1-5Embodiment 1 of the present invention provides a device for collecting information on sheath current and voltage faults, including a support plate 1. Fixing frames 2 are fixedly installed at the four corners of the bottom surface of the support plate 1. At least one cable 3 is installed above the support plate 1. A current transformer 4 is sleeved on each cable 3, and a voltage sensor 5 is sleeved on each cable 3 and located on one side of the current transformer 4. A protective mechanism 6 is provided on the top surface of the support plate 1. The cable 3 passes through and is placed inside the protective mechanism 6. The protective mechanism 6 includes a limiting component 61 installed on the top surface of the support plate 1 and a blocking component 62 inserted above the limiting component 61. The inner sides of the limiting component 61 are connected to the bottom surfaces of the current transformer 4 and the voltage sensor 5, respectively. An alarm mechanism 7 is provided on the top surface of the support plate 1 and located on one side of the protective mechanism 6, and the alarm mechanism 7 is electrically connected to the current transformer 4 and the voltage sensor 5. The tray 1 allows for installation in designated positions via four mounting brackets 2, and also enables the installation and fixation of the limiting component 61 in the protective mechanism 6. The limiting component 61 then allows for the installation of the current transformer 4 and voltage sensor 5, as well as the fastening of the shielding component 62. When collecting fault information on the sheath current and voltage of the cable 3, the user can first pass the cable 3 through the current transformer 4 and voltage sensor 5, and then fasten the shielding component 62 onto the limiting component 61. This limits the installation of the shielding component 62. Furthermore, the shielding component 62 facilitates viewing the operating status of the current transformer 4 and voltage sensor 5, while also providing shielding and protection for them. This protects the current transformer 4 and voltage sensor 5, reducing damage from external objects and improving their safety during use. It also reduces the cost of subsequent maintenance.

[0022] The alarm mechanism 7 is installed on the tray 1. The transmission lines on the current transformer 4 and voltage sensor 5 are connected to the alarm mechanism 7. Through the current transformer 4 and voltage sensor 5, the current and voltage of the sheath can be monitored in real time, and the monitoring data can be sent to the alarm mechanism 7. At this time, the alarm mechanism 7 can process the data sent in and wirelessly send it to the control center, thereby reminding the user and improving the safety of cable 3. At the same time, the whole process does not require the user to go to the site to collect data, further reducing the labor intensity of the staff.

[0023] See Figures 3-7The limiting component 61 includes a positioning frame 611 disposed on the top surface of the tray 1. Slots 612 are provided on both sides of the top of the inner walls of the positioning frame 611, with a supporting part 613 disposed between two opposing slots 612. First notches 614 are provided on both sides of the top surface of the positioning frame 611 in the radial direction of the cable 3. First flame-retardant silicone strips 615 are disposed within the inner cavities of the two first notches 614. A first wire groove 618 is provided on the outer wall of the positioning frame 611 on one side of the alarm mechanism 7. The supporting part 613 includes a mounting rail 6131, with both ends of the mounting rail 6131 inserted into the inner cavities of two opposing slots 612. The top of the mounting rail 6131... Mounting holes 6132 are provided on the surface and near both ends. Mounting screws 6133 are inserted into the inner cavities of both mounting holes 6132. The bottom end of the inner cavity of the slot 612 is provided with an internal thread groove for rotating the bottom end of the mounting screw 6133. At least one slider 6134 is slidably connected on the mounting track 6131. ​​A positioning bracket 6137 is fixedly provided on the top surface of the slider 6134. An internal thread hole 6135 is provided on the side wall of each slider 6134, and one end of the internal thread hole 6135 extends into the inner cavity of the slider 6134. A positioning screw 6136 is rotatably installed in the inner cavity of the internal thread hole 6135, and one end of the positioning screw 6136 abuts against the side wall of the mounting track 6131. The positioning frame 611 in the limiting component 61 can be fixed to the top surface of the tray 1 and provide opening space for the four slots 612. Then, by installing two mounting rails 6131 into the two opposing sets of slots 612, and then by using mounting screws 6133 to pass through the mounting holes 6132 on the mounting rails 6131, the bottom end of the mounting rails 6131 can be rotated and installed in the internal thread groove at the bottom of the inner cavity of the slot 612, thereby achieving the purpose of installing and fixing the mounting rails 6131. ​​The user can then install the corresponding number of current transformers 4 and voltage sensors 5 according to the number of cables 3. At this time, the slider 6134 can slide on the mounting rails 6131 and can also be fixed by the positioning frame 6137, thereby improving the stability of the current transformers 4 or voltage sensors 5 in use. The position of the 4 can be adjusted synchronously to adjust the position of the current transformer 4 or voltage sensor 5 installed on the positioning frame 6137, or to install other detection sensors according to the user's detection needs, so as to install multiple devices to collect information from multiple cables 3. Then, by rotating the positioning screw 6136 in the internal thread hole 6135, the position of the slider 6134 can be locked on the mounting track 6131, thereby preventing the slider 6134 from sliding left and right during use, ensuring the stability of the current transformer 4 or voltage sensor 5. Since the top surface of the positioning frame 611 has first notches 614 on both sides and in the radial direction of the cable 3, and the inner cavity of the two first notches 614 is provided with first flame-retardant silicone strips 615, the cooperation of the first notches 614 and the first flame-retardant silicone strips 615 can facilitate the cable 3 to enter and exit the positioning frame 611, and at the same time, it can also serve as a shield.

[0024] See Figure 6 The two sides of the positioning frame 611 are provided with grooves 616, and each groove 616 is provided with a metal spring 617 in its inner cavity, and the outer middle of the metal spring 617 extends to the outer side of the inner cavity of the groove 616. The metal spring 617 can be installed through the groove 616 on the outside of the positioning frame 611. When the shielding component 62 is inserted into the outside of the positioning frame 611, the metal spring 617 will be squeezed inward. Then, under the reaction force of the metal spring 617, the inner wall of the shielding component 62 is elastically limited, thereby improving the stability of the shielding component 62.

[0025] See Figure 8The shielding component 62 includes a protective cover 621. The protective cover 621 has two second notches 622 on both sides of its bottom surface and in the radial direction of the cable 3. Each second notch 622 has a second flame-retardant silicone strip 623 inside its cavity. The protective cover 621 has a window 624 in the middle of its top surface. The window 624 has a transparent plate 625 inside its cavity. The protective cover 621 has a second wire groove 626 at the bottom of its outer side wall and the side closest to the alarm mechanism 7. The second wire groove 626 has a third flame-retardant silicone strip 627 inside its cavity. The shielding component 62 also includes a handle 628. There are two handles 628, which are respectively located in the middle of the two side walls of the protective cover 621. Multiple warning stickers 629 are attached to the top surface of the protective cover 621 and on both sides of the window 624. The protective cover 621 in the shielding assembly 62 can both fasten to the outside of the positioning frame 611 and work with the second notch 622 and the second flame-retardant silicone strip 623 to press and hold the cable 3. Furthermore, it can wrap the cable 3 under the clamping of the first flame-retardant silicone strip 615. Since a window 624 is provided in the middle of the top surface of the protective cover 621, and a transparent plate 625 is provided inside the window 624, the user can easily observe the operation of the current transformer 4 and voltage sensor 5 from the outside through the window 624 and the transparent plate 625. This also works in conjunction with the protective cover 621. The system protects both current transformer 4 and voltage sensor 5, thereby improving their safety. The transmission lines on the current transformer 4 and voltage sensor 5 can extend out of the protective cover 621 through the second wire groove 626 and the third flame-retardant silicone strip 627, so as to connect with the alarm mechanism 7 for signal transmission. The protective cover 621 can be easily lifted upwards by the user through the handle 628, so as to disassemble and separate the protective cover 621 from the positioning frame 611. Multiple warning stickers 629 can serve as warnings and reminders to personnel.

[0026] See Figure 1 , Figure 9 The alarm mechanism 7 includes a base box 71 disposed on one side of the top surface of the tray 1. A cover 72 is disposed at the top opening of the base box 71. A control main board 73 is disposed on one side of the inner cavity of the base box 71. A storage module 74 and a communication module 75 are disposed on one side of the control main board 73. A touch screen display 76 is disposed on one side of the top surface of the cover 72. A third wire groove 77 is opened on one side wall of the cover 72 and on one side of the protective mechanism 6. A fourth flame-retardant silicone strip 78 is disposed in the inner cavity of the third wire groove 77. The alarm mechanism 7 also includes a buzzer 79 disposed on one side of the top surface of the cover 72. The buzzer 79 is used to emit a warning sound. The base box 71 in the alarm mechanism 7 can be installed on one side of the top surface of the tray 1, and can also house the control main board 73, storage module 74, and communication module 75. Simultaneously, it can be used with the cover 72 to install the touch screen 76 and buzzer 79. Through the third cable tray 77 and the fourth flame-retardant silicone strip 78, the transmission lines from the current transformer 4 and voltage sensor 5 can easily enter the base box 71, thus connecting to the control main board 73. The control main board 73 can both receive data from the current transformer 4 and voltage sensor 5 and process the data. The data is processed and displayed on the touch screen 76. Simultaneously, the processed data can be stored via the storage module 74 for easy retrieval by the user later. The communication module 75 allows the control motherboard 73 to easily send the processed data to the control center, enabling remote viewing and improving the ease of use of the equipment. When the control motherboard 73 detects abnormal data, it can send the data to the control center via the communication module 75 and also activate the buzzer 79, serving as a warning and reminder for user maintenance.

[0027] Embodiment 2 of the present invention provides a method for collecting information on sheath current and voltage faults, based on the aforementioned device for collecting information on sheath current and voltage faults, comprising the following steps: Step 1: Install the sheath current and voltage fault information acquisition device, pass the cable 3 through the current transformer 4 and voltage sensor 5, and place it inside the limit assembly 61. Step 2: Attach the shielding component 62 to the limiting component 61 to limit the installation of the shielding component 62; Step 3: Connect the current transformer 4 and voltage sensor 5 to the alarm mechanism 7 to monitor the current and voltage of the sheath in real time, and send the monitoring data to the alarm mechanism 7 to complete the collection of fault information on the sheath current and voltage.

[0028] Compared with the prior art, the beneficial effects of the present invention include at least the following: the tray 1 can be installed in a designated position via four fixing brackets 2, and the limiting component 61 in the protective mechanism 6 can be installed and fixed. Then, the limiting component 61 can be used to install the current transformer 4 and the voltage sensor 5, and to fasten the shielding component 62. When it is necessary to collect the sheath current and voltage fault information of the cable 3, the user can first pass the cable 3 through the current transformer 4 and the voltage sensor 5, and then fasten the shielding component 62 onto the limiting component 61, thereby limiting the installation of the shielding component 62. Furthermore, the shielding component 62 can be used to conveniently view the operating status of the current transformer 4 and the voltage sensor 5, and can also shield and protect the current transformer 4 and the voltage sensor 5, thereby protecting the current transformer 4 and the voltage sensor 5, reducing the damage to the current transformer 4 and the voltage sensor 5 caused by external foreign objects, improving the safety of the current transformer 4 and the voltage sensor 5, and reducing the cost of later maintenance.

[0029] The current transformer 4 and voltage sensor 5 can monitor the current and voltage of the sheath in real time and send the monitoring data to the alarm mechanism 7. The alarm mechanism 7 can process the data and wirelessly send it to the control center to remind users and improve the safety of cable 3. At the same time, the whole process does not require users to go to the site to collect data, further reducing the labor intensity of staff.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A device for collecting information on sheath current and voltage faults, comprising a tray (1), characterized in that: At least one cable (3) is provided above the tray (1), and each cable (3) is fitted with a current transformer (4) and a voltage sensor (5) for collecting fault information of sheath current and voltage. The top surface of the tray (1) is provided with a protective mechanism (6). The protective mechanism (6) includes a limiting component (61) disposed on the top surface of the tray (1) and a shielding component (62) inserted above the limiting component (61). The limiting component (61) is connected to the bottom surface of the current transformer (4) and the voltage sensor (5) respectively. The protective mechanism (6) is used to shield and protect the current transformer and the voltage sensor. An alarm mechanism (7) is provided on one side of the protective mechanism (6). The alarm mechanism (7) is electrically connected to the current transformer (4) and the voltage sensor (5) and is used to obtain the readings of the current transformer (4) and the voltage sensor (5) for early warning. The limiting component (61) includes a positioning frame (611) disposed on the top surface of the tray (1). Slots (612) are provided on both sides of the top of the inner cavity side walls of the positioning frame (611), and a lifting part (613) is provided between two opposing slots (612). A first notch (614) is provided on both sides of the top surface of the positioning frame (611) in the radial direction of the cable (3). A first flame-retardant silicone strip (615) is provided in the inner cavity of the first notch (614). A first wire groove (618) is provided on the outer wall of the positioning frame (611) on one side of the alarm mechanism (7). The supporting part (613) includes a mounting rail (6131), with both ends of the mounting rail (6131) inserted into the inner cavities of two opposing slots (612). The top surface of the mounting rail (6131) and near both ends are provided with mounting holes (6132). Mounting screws (6133) are inserted into the inner cavities of both mounting holes (6132). The bottom end of the inner cavity of the slot (612) is provided with an internal thread groove for rotating and mounting the bottom end of the mounting screws (6133). At least one slider (6134) is slidably connected on the mounting rail (6131). A positioning frame (6137) is fixedly provided on the top surface of the slider (6134). The shielding assembly (62) includes a protective cover (621). The protective cover (621) has a second notch (622) on both sides of its bottom surface and in the radial direction of the cable (3). The inner cavity of the second notch (622) is provided with a second flame-retardant silicone strip (623). A window (624) is provided in the middle of the top surface of the protective cover (621). A transparent plate (625) is provided in the inner cavity of the window (624). A second wire groove (626) is provided at the bottom of the outer wall of the protective cover (621) and the side closest to the alarm mechanism (7). A third flame-retardant silicone strip (627) is provided in the inner cavity of the second wire groove (626).

2. The device for acquiring information on sheath current and voltage faults according to claim 1, characterized in that: The sidewalls of the slider (6134) are provided with internal threaded holes (6135), one end of which extends into the inner cavity of the slider (6134). A positioning screw (6136) is rotatably mounted in the inner cavity of the internal threaded hole (6135), and one end of the positioning screw (6136) abuts against the side wall of the mounting rail (6131).

3. The device for acquiring information on sheath current and voltage faults according to claim 1, characterized in that: The positioning frame (611) has grooves (616) on both sides of its two side walls. The inner cavity of each groove (616) is provided with a metal spring (617). The outer middle part of the metal spring (617) extends to the outer side of the inner cavity of the groove (616).

4. The device for acquiring information on sheath current and voltage faults according to claim 1, characterized in that: The shielding assembly (62) also includes a handle (628), which is located in the middle of the two side walls of the protective cover (621); a plurality of warning stickers (629) are attached to the top surface of the protective cover (621) and on both sides of the window (624).

5. The device for acquiring information on sheath current and voltage faults according to claim 1, characterized in that: The alarm mechanism (7) includes a bottom box (71) disposed on one side of the top surface of the tray (1), a box cover (72) is provided at the top opening end of the bottom box (71), a control main board (73) is provided on one side of the inner cavity of the bottom box (71), and a storage module (74) and a communication module (75) are provided on one side of the control main board (73). A touch screen (76) is provided on one side of the top surface of the cover (72), and a third groove (77) is provided on one side wall of the cover (72) and on the side of the protective mechanism (6). A fourth flame-retardant silicone strip (78) is provided in the inner cavity of the third groove (77).

6. The device for acquiring information on sheath current and voltage faults according to claim 5, characterized in that: The alarm mechanism (7) also includes a buzzer (79), which is disposed on one side of the top surface of the cover (72) and is used to emit a warning sound.

7. A method for collecting information on sheath current and voltage faults, based on any one of claims 1-6, characterized in that: Includes the following steps: Install the sheath current and voltage fault information acquisition device, pass the cable (3) through the current transformer (4) and voltage sensor (5) and place it inside the limit assembly (61); fasten the shielding assembly (62) on the limit assembly (61), and connect the current transformer (4) and voltage sensor (5) to the alarm mechanism (7); through the current transformer (4) and voltage sensor (5), the current and voltage of the sheath can be monitored in real time, and the monitoring data can be sent to the alarm mechanism (7) to complete the acquisition of fault information of sheath current and voltage.

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