Integrated voltage and current acquisition device for intelligent monitoring of low-voltage substations

Abstract

This invention discloses an integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas. It includes a low-voltage monitoring terminal with terminals connected to a detection line. At least one flexible Rogowski coil current transformer with puncture resistance is connected to the detection line. This invention relates to the field of power monitoring technology. This integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas employs integrated voltage puncture acquisition and flexible current acquisition, integrating voltage, current, and temperature acquisition functions onto the flexible Rogowski coil current transformer with puncture resistance. It has a compact and simple structure, adaptable to wiring environments of low-voltage cabinets of different sizes, compatible with various cable diameters, provides stable data acquisition, and supports rapid live installation. The use of snap-fit ​​and pull-tab connections completely seals the cable puncture points, improving structural sealing and making installation convenient and quick.

Description

Technical Field

[0001] This invention relates to the field of power monitoring technology, specifically to an integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas. Background Technology

[0002] In recent years, with the rapid development of low-voltage distribution networks, in order to actively promote the construction of low-voltage transparency and digitalization, the massive data collection of low-voltage smart distribution areas, as an important link to improve the situational awareness capability of low-voltage distribution networks, relies on reliable hardware support on site.

[0003] The current low-voltage branch monitoring terminal data acquisition is distributed voltage and current. The device is large, not fixed, and complicated to install. It is severely restricted by the space in the cable room and is prone to problems such as inability to install and poor contact. It may also pose a risk of electric shock, which greatly affects the data quality of real-time monitoring of branch operation.

[0004] Flexible Rogowski coils are widely used in modern current detection processes due to their high flexibility, anti-interference ability, fast response speed, and excellent linearity. However, since flexible Rogowski coil current transformers are usually used for current monitoring and do not have voltage detection function, the puncture voltage detection function was introduced into flexible Rogowski coil transformers in later improvements, enabling them to monitor both voltage and current simultaneously.

[0005] Based on the above, the application of puncture-resistant flexible Rogowski coils to intelligent monitoring of low-voltage distribution areas can effectively save installation space for voltage and current monitoring equipment and make it more flexible and convenient to use. However, in the current installation and use of puncture-resistant flexible Rogowski coils, the puncture device needs to pierce the outer layer of the cable in order to obtain power.

[0006] Therefore, after installation, the position of the Rogowski coil transformer is usually fixed by adhesive bonding. However, adhesive bonding can easily cause the contact position of the coil transformer to become loose. Secondly, the current snap-fit ​​structure often adopts an external wrapping method, which cannot effectively protect the piercing part of the cable from water ingress. In view of this, in-depth research was conducted on the above problems, which led to this case. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas, thus solving the existing technical problems.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas, comprising a low-voltage monitoring terminal, wherein the low-voltage monitoring terminal is provided with a wiring terminal, a detection line is connected to the wiring terminal, and at least one puncture-resistant flexible Rogowski coil current transformer is connected to the detection line.

[0009] The puncture-resistant flexible Rogowski coil current transformer consists of a connector, a data line extending from the connector, and a flexible coil, wherein the data line is connected to the detection line.

[0010] The connector is enclosed by an integrator box, and a connector is provided on one side of the integrator box. One side of the integrator box is fixedly connected to one end of the flexible coil, and the open end of the flexible coil is provided with a movable connector that is connected to the connector.

[0011] The bottom of the integrator box is provided with a docking seat to contact the detection cable, and the bottom of the integrator box is provided with a wrap-around buckle structure, which cooperates with the docking seat to wrap and clamp the detection cable.

[0012] The puncture-resistant flexible Rogowski coil transformer also includes a power-taking detection probe, which is mounted on a connector and penetrates the outer sheath of the detection cable and contacts the inner core of the detection cable for power-taking detection voltage.

[0013] The integrator box is equipped with a control thruster, which controls the movement of the power detection probe through an adjustment component in conjunction with the power detection probe.

[0014] The encasing buckle structure includes a pair of slots. A pair of slots are symmetrically provided on both sides of the docking seat. A pair of tensioners are provided on the pair of slots. An adjuster is provided on the pair of tensioners through a gear set. A pair of guide rods are inserted into the pair of slots. The pair of guide rods cooperate with the pair of tensioners. The bottom of the pair of guide rods is connected to a wrapping groove that matches the shape of the docking seat.

[0015] The two sides of the docking seat are equipped with sealing components that match the two sides of the wrapping groove.

[0016] Preferably, the regulator consists of a rotating groove formed on the docking seat, a rotating shaft assembled in the rotating groove, and a drive worm gear arranged coaxially with the rotating shaft;

[0017] The gear set includes a pair of driving worm gears, the driving worm meshes with the pair of driving worm gears, the pair of tensioners are a pair of nut sleeves, a pair of transmission gears are coaxially arranged on the pair of driving worm gears, a pair of fastening gears are sleeved on the outside of the pair of tensioners and mesh with the pair of transmission gears respectively, the pair of guide rods are a pair of threaded rods, and the pair of tensioners and the pair of guide rods are connected by threads.

[0018] Preferably, the low-voltage monitoring terminal is a DK6211-G(L) type low-voltage circuit measurement and control terminal, and the terminal detection line of the low-voltage monitoring terminal is a three-phase detection line.

[0019] Preferably, the power-taking detection probe performs voltage detection while simultaneously using a temperature sensor to detect the temperature of the detection cable.

[0020] Preferably, the data line integrates a temperature measurement data line, a voltage data line, and a current data line.

[0021] Preferably, the control thruster includes a rotating base, the integrating box is provided with the rotating base, the rotating base has a Z-shaped guide groove, an insulating rod is movably mounted on the central shaft of the rotating base, the top end of the insulating rod is provided with a control block mounted in the guide groove, a preload spring is mounted on the insulating rod, and the insulating rod corresponds to the top end of the power-taking detection probe.

[0022] Preferably, the two sides of the power-taking detection probe are connected to the docking seat by a pair of flexible strips, and the docking seat is provided with a guide hole. The top of the power-taking detection probe is inserted into the guide hole, the bottom end of the insulating rod extends into the guide hole, and a sealing conical sleeve is fitted on the outside of the power-taking detection probe.

[0023] Preferably, the bottom end of the insulating rod contacts the top end of the power-taking detection probe. When the control block is in the high position of the guide groove, the preload spring is in a stretched state. When the control block is rotated to the low position of the guide groove, the power-taking detection probe presses down into the outer sheath of the piercing detection cable.

[0024] Preferably, the integrator box is a rectangular box made of plastic, and the docking seat is a rectangular arc-shaped plate extending out of the integrator box.

[0025] Preferably, the sealing assembly includes two pairs of sealing ring grooves. The two ends of the mating seat and the two ends of the wrapping groove are respectively provided with two pairs of sealing ring grooves. Two pairs of sealing ring sleeves are assembled in the two pairs of sealing ring grooves. The two pairs of sealing ring sleeves are semi-circular structures and their shapes match each other to wrap around the outer periphery of the detection cable. Beneficial effects

[0026] This invention provides an integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas. It offers the following advantages: This integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas employs integrated voltage puncture acquisition and flexible current acquisition, integrating voltage, current, and temperature acquisition functions onto a puncture-resistant flexible Rogowski coil current transformer. Its compact and simple structure adapts to wiring environments of low-voltage switchgear of different sizes, accommodates various cable diameters, provides stable data acquisition, and supports rapid live installation. The use of snap-fit ​​and pull-tab connections completely seals the cable puncture points, improving structural sealing and facilitating quick and easy installation. Attached Figure Description

[0027] Figure 1 This is a wiring diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in Embodiment 1 of the present invention.

[0028] Figure 2 This is a first three-dimensional structural diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in Embodiment 1 of the present invention.

[0029] Figure 3 This is a second three-dimensional structural diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in Embodiment 1 of the present invention.

[0030] Figure 4 This is a partial isometric structural diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in Embodiment 1 of the present invention.

[0031] Figure 5 This is a partial cross-sectional view of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in Embodiment 1 of the present invention.

[0032] Figure 6 This is a partial three-dimensional structural diagram of the integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in Embodiment 2 of the present invention.

[0033] In the diagram: 1. Low-voltage monitoring terminal; 2. Wiring terminal; 3. Detection line; 4. Current transformer with piercing flexible Rogowski coil; 41. Connector; 42. Data line; 43. Flexible coil; 44. Integrator box; 45. Connecting seat; 46. Encased snap-fit ​​structure; 47. Power supply detection probe; 48. Control pusher; 49. Strap; 461. Wrapping groove; 462. Slot; 463. Tensioner; 464. Gear set; 465. Regulator; 466. Guide rod; 467. Sealing assembly; 471. Flexible belt; 472. Guide hole; 473. Sealing conical sleeve; 481. Rotating seat; 482. Guide groove; 483. Insulating rod; 484. Control block; 485. Preload spring; 4641. Drive worm gear; 4642. Transmission gear; 4643. Fastening gear; 4651. Rotating shaft; 4652. Drive worm. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-6 This invention provides an implementation scheme: In the intelligent construction of modern low-voltage distribution areas, the voltage and current acquisition devices used in the past often adopted a distributed design, resulting in cumbersome installation and complex and bulky structures. To address this issue, this application discloses an integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas. The device consists of a low-voltage monitoring terminal 1 and a flexible Rogowski coil current transformer 4 with puncture resistance. The low-voltage monitoring terminal 1 adopts the DK6211-G(L) type low-voltage circuit measurement and control terminal. This type of low-voltage circuit measurement and control terminal adopts a rail-mounted structure, which is easy to install. It is an intelligent integrated measurement and control terminal with temperature measurement, which effectively improves the monitoring accuracy of voltage and current. Furthermore, by improving the flexible Rogowski coil, it integrates the function of puncture resistance to measure voltage, thereby improving functionality and installation convenience.

[0036] Example 1: Further according to the appendix to the instruction manual Figure 1-5 It is known that the low-voltage monitoring terminal 1 is provided with a wiring terminal 2, and a detection line 3 is connected to the wiring terminal 2. The detection line 3 is arranged according to the number of phases of the monitored circuit. The low-voltage circuit measurement and control terminal disclosed in this application is mostly used for the measurement and control of three-phase low-voltage circuits, but is not limited to circuits with other phases. At least one puncture-resistant flexible Rogowski coil current transformer 4 is connected to the detection line 3. The specific number of puncture-resistant flexible Rogowski coils used is determined according to the number of phases of the measurement and control circuit. For example, three puncture-resistant flexible Rogowski coils are used in a three-phase circuit.

[0037] Furthermore, according to Appendix 1-5 of the specification, the aforementioned flexible Rogowski coil transformer 4 with puncture resistance is composed of a connector 41, a data line 42 extending from the connector 41, and a flexible coil 43. In specific implementation, the connector 41 integrates the detection circuit of the flexible Rogowski coil transformer and the detection circuit of the puncture voltage measurement. The detection circuit is connected to the data line 42, and the data line 42 is connected to the detection line 3. This is used to transmit the current data detected by the flexible Rogowski coil transformer, the voltage data detected by the puncture voltage measurement, and the temperature data detected by the temperature sensor back to the low-voltage monitoring terminal 1 through the detection line 3.

[0038] Therefore, while the power-taking detection probe 47 is taking power and performing voltage detection, it also needs to use a temperature sensor to complete the temperature detection of the detection cable. As a result, the data line 42 integrates a temperature measurement data line 42, a voltage data line 42, and a current data line 42.

[0039] Furthermore, the connector 41 is externally encased in an integrating box 44, and a connecting seat is provided on one side of the integrating box 44. The integrating box 44 is a rectangular box made of plastic material, and the connecting seat 45 is a rectangular notched plate extending from the integrating box 44. One side of the integrating box 44 is fixedly connected to one end of the flexible coil 43. The open end of the flexible coil 43 is provided with a movable joint that connects to the connecting seat. The integrating box 44 serves as an external protective structure for the connector 41, encasing and protecting the connector 41. The fixed end of the flexible coil 43 is connected to the connector 41, and the flexible Rogowski coil passes through one side of the integrating box 44. The open end of the flexible coil 43 is connected to the connecting seat through the movable joint, allowing the flexible coil 43 to pass through the detection cable during installation and then be closed and locked. This achieves the closed loop formation of the flexible coil 43, which is convenient for installation. Generally, the movable joint and the connecting seat can be locked using a snap-fit ​​or threaded structure, referring to the existing installation method of flexible Rogowski coils.

[0040] Furthermore, a docking seat 45 is provided at the bottom of the integrator box 44 to contact the detection cable. The docking seat 45 plays a supporting and positioning role during the installation of the flexible Rogowski coil. Furthermore, a wrapping buckle structure 46 is provided at the bottom of the integrator box 44. The wrapping buckle structure 46 cooperates with the docking seat 45 to wrap and clamp the detection cable. The wrapping buckle structure 46 can dock with the docking seat 45 to jointly wrap the power taking part and support and fix the integrator box 44.

[0041] According to the instruction manual Figure 1-5It is known that the above-mentioned puncture-resistant flexible Rogowski coil transformer 4 also includes a power-taking detection probe 47. The power-taking detection probe 47 is installed on the connector. The power-taking detection probe 47 penetrates the outer sheath of the detection cable and contacts the inner core of the detection cable to take power and detect the voltage. The integration box 44 is provided with a control pusher 48. The control pusher 48 controls the movement of the power-taking detection probe 47 by adjusting the component and linking with the power-taking detection probe 47.

[0042] In the specific implementation process, when not installed, the control thruster 48 on the power-taking detection probe 47 is in a ready-to-fire energy-storage state. The two sides of the power-taking detection probe are connected to the docking seat 45 by a pair of flexible strips 471. During installation, the installation position is first determined. After the docking seat 45 is used to correspond to the cable position, the docking seat 45 is connected to the encasing snap-fit ​​structure 46. Due to the obstruction and back push of the outer sheath of the detection cable, the detection cable causes the flexible strip 471 to deform, thereby releasing the control thruster 48. The control thruster 48 pushes the power-taking detection probe 47 to pierce the outer sheath of the detection cable and contact the inner core of the detection cable, thereby realizing the function of power-taking detection voltage.

[0043] According to the instruction manual Figure 1-5 It can be seen that the above-mentioned encasing buckle structure 46 includes a pair of slots 462. A pair of slots 462 are symmetrically opened on both sides of the docking seat 45. A pair of tensioners 463 are provided on the pair of slots 462. An adjuster 465 is provided on the pair of tensioners 463 through a gear set 464. A pair of guide rods 466 are inserted into the pair of slots 462. The pair of guide rods 466 cooperate with the pair of tensioners 463. The bottom of the pair of guide rods 466 is connected to a wrapping groove 461 that matches the shape of the docking seat 45.

[0044] In the specific implementation process, a pair of slots 462 first limit the movement of a pair of tensioners 463 and guide a pair of guide rods 466. During the installation of the wrapping groove 461, the pair of guide rods 466 are inserted into the pair of slots 462, and then engage with the pair of tensioners 463. The movement of the pair of tensioners 463 is synchronously adjusted by the adjuster 465, thereby linking the pair of tensioners 463 with the pair of guide rods 466 to tighten the wrapping groove 461. This allows the wrapping groove 461 and the docking seat 45 to encircle the detection cable, thus fixing the position of the docking seat 45. Furthermore, the wrapping groove 461 and the docking seat 45 are positioned on both sides of the docking seat 45. Sealing components 467 are provided on both sides to further improve the sealing performance of the wrapping groove 461 and the docking seat 45, thereby protecting the puncture hole position and preventing water ingress from affecting the accuracy of puncture voltage detection, thus protecting equipment safety. Specifically, the sealing component 467 includes two pairs of sealing ring grooves. Two pairs of sealing ring grooves are opened at both ends of the docking seat 45 and the two ends of the wrapping groove 461, respectively. Two pairs of sealing ring sleeves are installed in the two pairs of sealing ring grooves. Both pairs of sealing ring sleeves are semi-circular structures and their shapes match each other to wrap around the outer circumference of the detection cable. During the relative tightening process of the wrapping groove 461 and the docking seat 45, the sealing ring sleeves are interference-fitted with the outer sheath of the detection cable to achieve a sealing effect.

[0045] According to the instruction manual Figure 1-5 It can be seen that the aforementioned adjuster 465 consists of a rotating groove opened on the docking seat 45, a rotating shaft 4651 assembled in the rotating groove, and a drive worm 4652 coaxially arranged with the rotating shaft 4651. The rotating shaft 4651 drives the drive worm 4652 to rotate. The end of the rotating shaft 4651 is provided with a variable diameter rotating block, and an internal hexagonal groove is opened on the rotating block. The rotating shaft 4651 is adjusted by a hexagonal wrench.

[0046] Furthermore, the aforementioned gear set 464 includes a pair of driving worm gears 4641, a driving worm 4652 meshing with the pair of driving worm gears 4641, a pair of tensioners 463 being a pair of nut sleeves, a pair of transmission gears 4642 coaxially arranged on the pair of driving worm gears 4641, a pair of fastening gears 4643 externally sleeved on the pair of tensioners 463 respectively meshing with the pair of transmission gears 4642, a pair of guide rods 466 being a pair of threaded rods, and a pair of tensioners 463 and a pair of guide rods 466 being connected by threads;

[0047] In the specific implementation process, the drive worm 4652 meshes with a pair of drive worm wheels 4641, causing the drive worm 4652 to rotate in the meshing with the pair of drive worm wheels 4641, which in turn causes the drive worm wheels 4641 to rotate synchronously with the transmission gear 4642. Furthermore, the pair of fastening gears 4643 meshing with the pair of transmission gears 4642 rotate, which in turn drives the pair of tensioners 463 to rotate. When a pair of guide rods 466 are inserted into a pair of guide slots, the pair of guide rods 466 engage with the pair of tensioners 463 through threads, which in turn causes the pair of guide rods 466 to pull the wrapping groove 461 close to the docking seat 45, so that the wrapping groove 461 and the docking seat 45 encircle the detection cable.

[0048] According to the instruction manual Figure 1-5 It can be seen that the aforementioned control thruster 48 includes a rotating seat 481. The rotating seat 481 is provided on the integrator box 44. The rotating seat 481 has a Z-shaped guide groove 482. An insulating rod 483 is movably mounted on the central shaft of the rotating seat 481. A control block 484 is provided at the top of the insulating rod 483 and is mounted in the guide groove 482. A preload spring 485 is mounted on the insulating rod 483. The insulating rod 483 corresponds to the top of the power-taking detection probe 47.

[0049] In the specific implementation process, the rotating seat 481 is hollow, and the rotating seat 481 can axially limit the insulating rod 483, allowing the insulating rod 483 to move axially. A guide groove 482 is provided on the rotating seat 481, and a control block 484 is assembled on the guide groove 482. The control block 484 is guided by the guide groove 482, and a guide hole 472 is opened on the docking seat 45. Before the control block 484 is unlocked, the top of the power taking detection probe is pushed back into the guide hole 472 by the outer sheath of the detection cable, and the bottom end of the insulating rod 483 extends into the guide hole. Before installation, the control block 484 is installed on the top of the guide groove 482. During installation, the control block 484 is rotated to move along the guide groove 482, and then moves to the bottom of the guide groove 482. During the pulling process of the preload spring 485, the insulating rod 483 moves along the guide hole 472, thereby pushing the power taking detection probe to insert into the outer sheath of the detection cable and contact the inner core of the detection cable. The power taking detection probe is covered with a sealing conical sleeve 473, which also limits the cable sheath break.

[0050] Example 2: According to the appendix of the instruction manual Figure 6Therefore, in order to be used in narrow areas, during the application process, by setting a strap on one side of the docking seat 45, the docking seat 45 is directly tied to the cable to be tested using the strap 49. The power detection probe 47 on the integrating box is directly inserted into the cable to be tested to realize the power detection operation. In this application, there is no need to use the regulator 465 and the tensioner 463, and the sealing is abandoned. The sealing conical sleeve 473 on the power detection probe 47 provides a sealing effect to protect the power tapping hole.

[0051] In summary, this integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas adopts integrated voltage puncture acquisition and flexible current acquisition. It integrates voltage, current, and temperature acquisition functions onto the puncture-flexible Rogowski coil transformer 4. The structure is compact and simple, adaptable to wiring environments of low-voltage cabinets of different sizes, compatible with various cable diameters, provides stable data acquisition, and supports rapid live installation. The use of snap-fit ​​and pull-out connections can completely seal the cable puncture point, improving structural sealing and making installation convenient and quick.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas, comprising a low-voltage monitoring terminal (1), wherein the low-voltage monitoring terminal (1) is provided with a wiring terminal (2), a detection line (3) is connected to the wiring terminal (2), and at least one puncture-resistant flexible Rogowski coil current transformer (4) is connected to the detection line (3), characterized in that, The puncture-resistant flexible Rogowski coil current transformer (4) consists of a connector (41), a data line (42) extending from the connector (41), and a flexible coil (43), wherein the data line (42) is connected to the detection line (3). The connector (41) is wrapped with an integrator box (44), and a connector is provided on one side of the integrator box (44). One side of the integrator box (44) is fixedly connected to one end of the flexible coil (43). The open end of the flexible coil (43) is provided with a movable connector that is connected to the connector. The bottom of the integrator box (44) is provided with a docking seat (45) to contact the detection cable. The bottom of the integrator box (44) is provided with a wrapping buckle structure (46). The wrapping buckle structure (46) cooperates with the docking seat (45) to wrap and clamp the detection cable. The piercing flexible Rogowski coil transformer (4) also includes a power-taking detection probe (47), which is mounted on the connector and penetrates the outer sheath of the detection cable and contacts the inner core of the detection cable for power-taking detection voltage. The integrator box (44) is provided with a control thruster (48), which controls the movement of the power-taking detection probe (47) in conjunction with the adjustment component; The encasing buckle structure (46) includes a pair of slots (462). A pair of slots (462) are symmetrically provided on both sides of the docking seat (45). A pair of tensioners (463) are provided on the pair of slots (462). An adjuster (465) is provided on the pair of tensioners (463) through a gear set (464). A pair of guide rods (466) are inserted into the pair of slots (462). The pair of guide rods (466) cooperate with the pair of tensioners (463). The bottom of the pair of guide rods (466) is connected to a wrapping groove (461) that matches the shape of the docking seat (45). The two sides of the docking seat (45) are provided with sealing components (467) that match the two sides of the wrapping groove (461). The control thruster (48) includes a rotating seat (481). The rotating seat (481) is provided on the integrator box (44). A Z-shaped guide groove (482) is opened on the rotating seat (481). An insulating rod (483) is movably mounted on the central axis of the rotating seat (481). A control block (484) is provided at the top of the insulating rod (483) and is mounted in the guide groove (482). A preload spring (485) is mounted on the insulating rod (483). The insulating rod (483) corresponds to the top of the power-taking detection probe (47).

2. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in claim 1, characterized in that, The low-voltage monitoring terminal (1) adopts the DK6211-G(L) type low-voltage circuit measurement and control terminal, and the wiring terminal (2) and detection line (3) of the low-voltage monitoring terminal are three-phase detection lines (3).

3. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in claim 2, characterized in that, The power-taking detection probe (47) performs voltage detection while simultaneously using a temperature sensor to detect the temperature of the detection cable.

4. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas according to claim 3, characterized in that, The data line (42) integrates a temperature measurement data line (42), a voltage data line (42), and a current data line (42).

5. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas according to claim 4, characterized in that, The two sides of the power-taking detection probe are connected to the docking seat (45) by a pair of flexible strips (471), and the docking seat (45) is provided with a guide hole (472). The top of the power-taking detection probe is inserted into the guide hole (472), the bottom end of the insulating rod (483) extends into the guide hole (472), and the outside of the power-taking detection probe is covered with a sealing conical sleeve (473).

6. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas according to claim 5, characterized in that, The bottom end of the insulating rod (483) contacts the top end of the power-taking detection probe. When the control block (484) is in the high position of the guide groove (482), the preload spring (485) is in the stretched state. When the control block (484) is rotated to the low position of the guide groove (482), the power-taking detection probe is pressed down into the outer skin of the puncture detection line (3).

7. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas as described in claim 6, characterized in that, The integrator box (44) is a rectangular box made of plastic material, and the docking seat (45) is a rectangular arc-shaped plate extending out of the integrator box (44).

8. The integrated voltage and current acquisition device for intelligent monitoring of low-voltage distribution areas according to claim 7, characterized in that, The sealing assembly (467) includes two pairs of sealing ring grooves. The two ends of the docking seat (45) and the two ends of the wrapping groove (461) are respectively provided with two pairs of sealing ring grooves. Two pairs of sealing ring sleeves are assembled in the two pairs of sealing ring grooves. The two pairs of sealing ring sleeves are semi-circular structures and their shapes match each other to wrap around the outer periphery of the detection cable.

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