Power supply line detection device for power supply station

Abstract

The utility model discloses a power supply line detection device for a power supply station, which comprises a detection assembly, the detection assembly comprises a clamping seat, a clamping groove, a clamping block, a voltage sensor, a current sensor and a resistance sensor, and one side of the clamping seat is provided with the clamping groove. The rotary knob is rotated to drive the screw rod to rotate, so that the clamping block is driven to move to be matched with the clamping groove to clamp power supply lines of different specifications, and the power supply lines are in close contact with the arc-shaped detection block; voltage, current and resistance parameters of a power supply line are accurately measured, so that the working state of the line is comprehensively evaluated, detection data are processed in real time through a built-in signal processing module and a built-in microprocessor and are compared with a preset fault threshold value, and once fault features are found, quick judgment is performed, and corresponding protection actions are adopted. Therefore, the safety and the reliability of the power supply line are greatly improved.

Description

Technical field:

[0001] The utility model relates to the technical field of electric power detection, in particular to a power supply line detection device used in power supply. Background technology:

[0002] With the development of power systems, the improvement of voltage levels and the degree of automation, the insulation problem of power equipment has become increasingly prominent. Electrical equipment is mainly composed of conductors, magnetic materials, insulating materials and operating mechanisms, so its faults can be divided into mechanical faults, conductor faults and insulation faults. Among these faults, insulation faults are the main reason affecting the normal operation of power equipment. When there are hidden dangers and faults in power equipment and lines during operation, some specific phenomena and characteristics will occur, such as ultrasonic waves, infrared rays, electromagnetic waves and ultraviolet rays. These characteristic phenomena can be captured by special equipment, so as to accurately judge the hidden dangers of power equipment and lines.

[0003] Existing non-contact high-voltage insulation status detection methods, such as infrared cameras, can detect some faults, but the detection effect is not ideal for some fault points that are not easy to generate heat, such as corona and electric traces. In addition, these methods are usually unable to accurately measure and analyze power supply parameters. Therefore, a power supply line detection device for power supply is proposed. Utility model content:

[0004] The purpose of the utility model is to provide a power supply line detection device for power supply, so as to solve one of the problems raised in the above background technology.

[0005] The utility model is implemented by the following technical scheme: a power supply line detection device for power supply, including a detection component, the detection component includes a clamping seat, a clamping groove, a clamping block, a limiting hole, a screw, a threaded hole, a connecting groove, an arc detection block, a voltage sensor, a current sensor and a resistance sensor, a clamping groove is provided on one side of the clamping seat, the inner side wall of the clamping groove is slidably connected with the clamping block, the center of the lower surface of the clamping block is provided with a limiting hole, the inner side wall of the limiting hole is rotatably connected with a screw, the center of the lower surface of the clamping seat is provided with a threaded hole, the outer side wall of the screw is threadedly connected to the inner side wall of the threaded hole, connecting grooves are provided in the middle and both sides of the inner top wall of the clamping groove, the inner side walls of the three connecting grooves are fixedly connected with arc detection blocks, the middle and both sides of the upper surface of the clamping seat are respectively installed with a voltage sensor, a current sensor and a resistance sensor, and the output ends of the three arc detection blocks are respectively electrically connected to the input ends of the voltage sensor, the current sensor and the resistance sensor.

[0006] As a further preferred embodiment of the present technical solution: a detector is fixedly connected to the middle part of the front surface of the clamping seat, and a signal processing module, a microprocessor, an instruction execution module and a communication module are arranged inside the detector, and the output ends of the voltage sensor, the current sensor and the resistance sensor are all electrically connected to the input end of the signal processing module.

[0007] As a further preferred embodiment of the present technical solution: guide rods are fixedly connected to both sides of the lower surface of the clamping block, guide holes are opened on both sides of the lower surface of the clamping seat, and the outer side walls of the guide rods are slidably connected to the inner side walls of the guide holes.

[0008] As a further preferred embodiment of the present technical solution: a cable embedding groove is provided in the middle of the rear surface of the clamping seat.

[0009] As a further preferred embodiment of the present technical solution: a touch display screen is provided on the front surface of the detector.

[0010] As a further preferred embodiment of the present technical solution: an annular limiting groove is provided on the top of the inner wall of the limiting hole, a limiting ring is fixedly connected to the top of the outer wall of the screw, and the outer wall of the limiting ring is rotatably connected to the inner wall of the annular limiting groove.

[0011] As a further preferred embodiment of the present technical solution: a wireless transmission antenna is provided at the center of the upper surface of the detector.

[0012] As a further preferred embodiment of the present technical solution: a protective shell is fixedly connected to the outer side of the upper surface of the clamping seat, and a knob is fixedly connected to the bottom of the screw.

[0013] Advantages of the utility model: The utility model drives the screw to rotate by rotating the knob, thereby driving the clamping block to move and the clamping groove to cooperate to clamp power supply lines of different specifications, so that the power supply line is in close contact with the arc detection block, and at the same time, the voltage, current and resistance parameters of the power supply line are accurately measured through the voltage sensor, current sensor and resistance sensor, so as to comprehensively evaluate the working status of the line, and the detection data is processed in real time through the built-in signal processing module and microprocessor, and compared with the preset fault threshold. Once the fault characteristics are found, the corresponding protection action is quickly judged and taken, thereby greatly improving the safety and reliability of the power supply line. Description of the drawings:

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of one viewing angle of the utility model;

[0016] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall cutaway structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the detector and signal processing module of the utility model.

[0019] In the figure: 1. detection component; 11. clamping seat; 12. clamping groove; 13. clamping block; 14. limiting hole; 15. screw; 16. threaded hole; 17. connecting groove; 18. arc detection block; 19. voltage sensor; 20. current sensor; 21. resistance sensor; 22. detector; 23. signal processing module; 24. microprocessor; 25. instruction execution module; 26. communication module; 27. guide rod; 28. guide hole; 29. ​​cable embedding groove; 30. touch display screen; 31. annular limiting groove; 32. limiting ring; 33. wireless transmission antenna; 34. protective shell; 35. knob. Specific implementation method:

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-4The utility model provides a technical solution: a power supply line detection device for power supply, including a detection component 1, the detection component 1 includes a clamping seat 11, a clamping groove 12, a clamping block 13, a limiting hole 14, a screw 15, a threaded hole 16, a connecting groove 17, an arc detection block 18, a voltage sensor 19, a current sensor 20 and a resistance sensor 21, a clamping groove 12 is provided on one side of the clamping seat 11, the inner side wall of the clamping groove 12 is slidably connected with the clamping block 13, a limiting hole 14 is provided at the center of the lower surface of the clamping block 13, a screw 15 is rotatably connected to the inner side wall of the limiting hole 14, and a screw 15 is provided at the center of the lower surface of the clamping seat 11 The outer wall of the screw rod 15 is threadedly connected to the inner wall of the threaded hole 16, and connecting grooves 17 are provided in the middle and both sides of the inner top wall of the clamping groove 12. The inner walls of the three connecting grooves 17 are fixedly connected with arc detection blocks 18. The middle and both sides of the upper surface of the clamping seat 11 are respectively installed with a voltage sensor 19, a current sensor 20 and a resistance sensor 21. The output ends of the three arc detection blocks 18 are respectively electrically connected to the input ends of the voltage sensor 19, the current sensor 20 and the resistance sensor 21. The voltage sensor 19, the current sensor 20 and the resistance sensor 21 are used to facilitate the detection of the current, voltage and resistance of the line.

[0023] In this embodiment, specifically: a detector 22 is fixedly connected to the middle part of the front surface of the clamping seat 11, and a signal processing module 23, a microprocessor 24, an instruction execution module 25 and a communication module 26 are arranged inside the detector 22. The output ends of the voltage sensor 19, the current sensor 20 and the resistance sensor 21 are electrically connected to the input end of the signal processing module 23. The signal processing module 23 facilitates digital signal processing of the collected current and voltage signals, and extracts fault characteristics. The fault characteristics extracted by the signal processing module 23 are received by the microprocessor 24 and compared with the preset fault threshold. When the fault characteristics exceed the threshold, it is judged as a line fault. When it is judged as a fault, the instruction execution module 25 issues a corresponding protection action instruction, thereby cutting off the circuit or sounding an alarm. The communication module 26 facilitates uploading the detection data and fault information to the remote monitoring center.

[0024] In this embodiment, specifically: guide rods 27 are fixedly connected to both sides of the lower surface of the clamping block 13, guide holes 28 are opened on both sides of the lower surface of the clamping seat 11, and the outer wall of the guide rod 27 is slidably connected to the inner wall of the guide hole 28. The guide rod 27 on the clamping block 13 slides inside the guide hole 28, thereby limiting the position of the guide rod 27, thereby increasing the stability of the movement of the clamping block 13.

[0025] In this embodiment, specifically: a cable embedding groove 29 is opened in the middle of the rear surface of the clamping seat 11 , and the line to be tested can be embedded into the clamping groove 12 through the cable embedding groove 29 .

[0026] In this embodiment, specifically: a touch screen 30 is provided on the front surface of the detector 22, and the real-time detection data and status information of the detector 22 can be easily viewed through the touch screen 30, so as to facilitate understanding of the working condition of the power supply line.

[0027] In the present embodiment, specifically: an annular limiting groove 31 is opened at the top of the inner wall of the limiting hole 14, a limiting ring 32 is fixedly connected to the top of the outer wall of the screw 15, the outer wall of the limiting ring 32 is rotatably connected to the inner wall of the annular limiting groove 31, and the limiting ring 32 is rotated inside the annular limiting groove 31, so that the limiting ring 32 is limited, and then the screw 15 is limited to prevent the screw 15 from falling off from the limiting hole 14.

[0028] In this embodiment, specifically: a wireless transmission antenna 33 is disposed at the center of the upper surface of the detector 22, and the wireless transmission antenna 33 is used to facilitate data transmission with the remote control center.

[0029] In this embodiment, specifically: a protective shell 34 is fixedly connected to the outer side of the upper surface of the clamping seat 11, and a knob 35 is fixedly connected to the bottom of the screw 15. The protective shell 34 is convenient for protecting the voltage sensor 19, the current sensor 20 and the resistance sensor 21, and the knob 35 is convenient for rotating the screw 15.

[0030] Working principle or structural principle, when in use, first, the operator embeds the power supply line to be detected into the clamping groove 12 through the cable embedding groove 29, and then drives the screw 15 to rotate in the threaded hole 16 by rotating the knob 35, so that the screw 15 moves upward while rotating, thereby pushing the clamping block 13 to slide in the clamping groove 12, and the clamping block 13 moves upward and cooperates with the clamping groove 12, so that the power supply line is tightly clamped in the clamping groove 12, so that the power supply line is in close contact with the arc detection block 18. After the power supply line is clamped, the voltage sensor 19, the current sensor 20 and the resistance sensor 21 respectively detect the voltage, current and resistance of the power supply line through the arc detection block 18, The detected data is transmitted to the signal processing module 23 inside the detector 22 for digital signal processing to extract fault characteristics. These characteristic data are then transmitted to the microprocessor 24 for further analysis and comparison. The microprocessor 24 compares the extracted fault characteristics with the preset fault threshold. If the fault characteristics exceed the threshold, it is determined that there is a fault in the power supply line. When a fault is detected, the instruction execution module 25 receives the instruction of the microprocessor 24 and performs corresponding protection actions according to the instruction, such as cutting off the circuit or triggering an alarm. At the same time, the communication module 26 sends the detection data and fault information to the remote monitoring center through the wireless transmission antenna 33, thereby realizing remote transmission and monitoring of data.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power supply line detection device for power supply, characterized in that: include A detection component (1), the detection component (1) comprising a clamping seat (11), a clamping groove (12), a clamping block (13), a limiting hole (14), a screw (15), a threaded hole (16), a connecting groove (17), an arc detection block (18), a voltage sensor (19), a current sensor (20) and a resistance sensor (21), a clamping groove (12) is provided on one side of the clamping seat (11), the inner side wall of the clamping groove (12) is slidably connected to the clamping block (13), a limiting hole (14) is provided at the center of the lower surface of the clamping block (13), the inner side wall of the limiting hole (14) is rotatably connected to the screw (15), the clamping seat ( A threaded hole (16) is provided at the center of the lower surface of the clamping seat (11), the outer wall of the screw rod (15) is threadedly connected to the inner wall of the threaded hole (16), the middle part and both sides of the inner top wall of the clamping slot (12) are provided with connecting slots (17), the inner walls of the three connecting slots (17) are fixedly connected with arc-shaped detection blocks (18), the middle part and both sides of the upper surface of the clamping seat (11) are respectively installed with a voltage sensor (19), a current sensor (20) and a resistance sensor (21), and the output ends of the three arc-shaped detection blocks (18) are respectively electrically connected to the input ends of the voltage sensor (19), the current sensor (20) and the resistance sensor (21).

2. A power supply line detection device for power supply according to claim 1, characterized in that: A detector (22) is fixedly connected to the middle of the front surface of the clamping seat (11), and a signal processing module (23), a microprocessor (24), an instruction execution module (25) and a communication module (26) are arranged inside the detector (22), and the output ends of the voltage sensor (19), the current sensor (20) and the resistance sensor (21) are all electrically connected to the input end of the signal processing module (23).

3. A power supply line detection device for power supply according to claim 1, characterized in that: Guide rods (27) are fixedly connected to both sides of the lower surface of the clamping block (13), guide holes (28) are opened on both sides of the lower surface of the clamping seat (11), and the outer wall of the guide rod (27) is slidably connected to the inner wall of the guide hole (28).

4. A power supply line detection device for power supply according to claim 1, characterized in that: A cable embedding groove (29) is provided in the middle of the rear surface of the clamping seat (11).

5. A power supply line detection device for power supply according to claim 2, characterized in that: The front surface of the detector (22) is provided with a touch display screen (30).

6. A power supply line detection device for power supply according to claim 1, characterized in that: An annular limiting groove (31) is provided at the top of the inner wall of the limiting hole (14), a limiting ring (32) is fixedly connected to the top of the outer wall of the screw rod (15), and the outer wall of the limiting ring (32) is rotatably connected to the inner wall of the annular limiting groove (31).

7. A power supply line detection device for power supply according to claim 2, characterized in that: A wireless transmission antenna (33) is arranged at the center of the upper surface of the detector (22).

8. A power supply line detection device for power supply according to claim 1, characterized in that: A protective shell (34) is fixedly connected to the outer side of the upper surface of the clamping seat (11), and a knob (35) is fixedly connected to the bottom of the screw rod (15).

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