Distributed fault positioning and monitoring device for power transmission line

Abstract

The utility model relates to the technical field of line monitoring, and discloses a power transmission line distributed fault positioning monitoring device, which is convenient to form a complete coil by arranging a monitoring coil, a ring sleeve, a connector A and the like, and can form a complete annular coil by inserting a jack and an inserting column, so that the power transmission line distributed fault positioning monitoring device is convenient to use. One end of the monitoring coil is inserted into the connector A, the insertion column is inserted into the insertion groove, the shell sleeve is rotated, the shell sleeve spirally sleeves the ring sleeve in the shell sleeve through the threads, and the position of one end of the monitoring coil is fixed by the shell sleeve and the ring sleeve, so that connection between the monitoring coil and the connector A is facilitated; and through the shell sleeve and the ring sleeve, quick disassembly and assembly can be realized, the fixation is firmer, and the effect of conveniently forming a complete coil is achieved.

Description

Technical Field

[0001] This utility model relates to the field of line monitoring technology, and in particular to a distributed fault location and monitoring device for power transmission lines. Background Technology

[0002] According to Chinese patent application number 2014106973885, an openable Rogowski coil for measuring lightning current in transmission lines includes an upper coil shell, a lower coil shell, a flexible Rogowski coil threaded skeleton, a wound coil, an insulating sleeve, an inner shielding layer, and a heat-shrink tubing. The wound coil is evenly wound in the threaded grooves on the flexible Rogowski coil threaded skeleton. An insulating sleeve, an inner shielding layer, and a heat-shrink tubing are sequentially fitted over the flexible Rogowski coil threaded skeleton and the wound coil. Although this coil solves the problem of inconvenient on-site installation of traditional closed-type rigid Rogowski coils, it still has the following drawbacks:

[0003] With the upper and lower coil housings hinged at one end and threaded at the other, the two ends of the winding coil inside the upper and lower coil housings are disconnected, making the two arc-shaped winding coils individual entities. This prevents the two semi-circular winding coils from forming a complete loop winding coil, requiring separate current measurements of the winding coils inside the upper and lower coil housings. Consequently, the measured current values ​​are incomplete, leading to large errors in the measurement results. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a distributed fault location and monitoring device for power transmission lines, which has the advantages of easy connection and easy replacement, and solves the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a distributed fault location monitoring device for transmission lines, including a monitoring coil, a connector A fixedly connected to the middle of the monitoring coil, a plug provided inside one end of the connector A, an annular groove opened on the outer ring of one end of the connector A, a housing rotatably installed inside the annular groove, a plug hole opened on the outer ring of one end of the monitoring coil located at the plug, an annular sleeve fixedly sleeved on the outer ring of the monitoring coil, a connector B fixedly installed on the outer ring of the connector A, a connecting device threaded onto the bottom of the connector B, and a transmission line fixedly connected to the bottom of the connecting device.

[0006] With the above-described structure, the device can form a complete ring coil by inserting the socket and the plug. By inserting one end of the monitoring coil into the inside of connector A, the position of one end of the monitoring coil is fixed by the shell and the ring. This method facilitates the connection between the monitoring coil and connector A. The shell and the ring can be quickly assembled and disassembled, and the fixed position is more secure.

[0007] Preferably, the inner ring of the housing is threaded, and the outer ring of the ring is threaded with a groove, wherein the threaded groove of the outer ring is adapted to the thread of the inner ring of the housing.

[0008] With the above structural design, the insert and slot are connected, and by rotating the shell, the ring is screwed into the inside of the shell through the thread.

[0009] Preferably, the bottom of the connector B is provided with a connecting tube in a circular shape, the connecting tube has a through hole inside, and a cylinder is fixedly installed on the bottom of the connector B on the outer ring of the connecting tube, the outer ring of the cylinder has a threaded groove.

[0010] With the above structural design, after setting the cylinder, threaded installation between it and the connecting device can be achieved. By contacting the shell cylinder with the cylinder and rotating the shell cylinder, the shell cylinder spirals on the outer ring of the cylinder, thus fixing the connecting device to the bottom of connector B.

[0011] Preferably, a transmission column is uniformly fixedly installed on the end face of the connecting device, the size of the transmission column is adapted to the internal through hole of the connecting pipe, and a shell is rotatably installed on the end face of the connecting device on the outer ring of the transmission column. The inner ring of the shell is threaded, and the inner ring thread of the shell is adapted to the outer ring thread groove of the cylinder.

[0012] With the above structural design, the inner ring thread of the shell and the outer ring thread groove of the cylinder engage with each other to fix the position of the connecting device. When disassembling, the shell is rotated in the opposite direction to disengage the connecting device from the connector B.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This distributed fault location monitoring device for transmission lines facilitates the assembly of a complete coil by setting up a monitoring coil, a ring sleeve, and connector A. The device can form a complete ring coil by inserting the monitoring coil into the socket and connecting it to the plug. One end of the monitoring coil is inserted into connector A, allowing the plug to engage with the slot. By rotating the housing, the ring sleeve is screwed onto the inside of the housing via threads, fixing one end of the monitoring coil in place. This method facilitates the connection between the monitoring coil and connector A, allowing for quick assembly and disassembly, and provides a more secure fixation, thus facilitating the assembly of a complete coil.

[0015] 2. This distributed fault location monitoring device for transmission lines facilitates disassembly of the line by using structures such as cylinders and shells. When carrying existing devices, the transmission line needs to be wound up, which may happen simultaneously with the monitoring coil. During transport, friction or pressure may cause the winding to become disordered or the line to be damaged, resulting in certain losses for the user. However, when using this device, the shell and ring can be disassembled, and the connector B can be separated from the connecting device. This allows for separate storage to avoid cross-winding and also prevents the line from being damaged by the overall pressure of the device, thus achieving the effect of easy transport. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of connector B of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the shell of this utility model;

[0019] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 for Figure 3 Enlarged view of section B in the middle.

[0021] In the diagram: 1. Monitoring coil; 11. Ring; 2. Connector A; 21. Insert; 22. Shell; 3. Connector B; 31. Connecting tube; 32. Cylinder; 4. Connecting device; 41. Transmission line; 42. Transmission post; 43. Shell. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5A distributed fault location monitoring device for transmission lines includes a monitoring coil 1. A connector A2 is fixedly connected to the middle of the monitoring coil 1. One end of the connector A2 has a post 21 inside. An annular groove is formed on the outer ring of one end of the connector A2. A housing 22 is rotatably installed inside the annular groove. The inner ring of the housing 22 has threads. One end of the monitoring coil 1 has a insertion hole on the outer ring of the post 21. The coil 1 is inserted into the post 21 through the insertion hole, so that the device can form a complete annular coil. An annular sleeve 11 is fixedly sleeved on the outer ring of the monitoring coil 1. The outer ring of the annular sleeve 11 has a threaded groove. The threaded groove on the outer ring of the annular sleeve 11 and the inner ring thread of the housing 22 are connected. To achieve compatibility, one end of the monitoring coil 1 is inserted into the interior of the connector A2, so that the pin 21 is inserted into the slot. By rotating the housing 22, the ring 11 is screwed onto the interior of the housing 22 through the thread, so that the position of one end of the monitoring coil 1 is fixed by the housing 22 and the ring 11. This method facilitates the connection between the monitoring coil 1 and the connector A2. The housing 22 and the ring 11 enable quick assembly and disassembly, and the fixation is more secure. The outer ring of the connector A2 is fixedly installed with the connector B3. The bottom of the connector B3 is threaded with the connecting device 4, and the bottom of the connecting device 4 is fixedly connected with the transmission line 41.

[0024] By setting a threaded connection between connector B3 and connecting device 4, quick assembly and disassembly between connector B3 and connecting device 4 can be achieved. When carrying the existing device, the transmission line 41 needs to be wound up, which may be wound up at the same time as the monitoring coil 1. During carrying, friction or pressure may cause the winding to become messy or the line to be damaged, which will cause certain losses to the user. However, when carrying this device, the shell 22 and the ring 11 can be disassembled, and the connector B3 and connecting device 4 can be disassembled. They can be stored separately to avoid cross winding, and at the same time, the line can be damaged due to the overall pressure of the device.

[0025] Please see Figures 1-4 The bottom of connector B3 is provided with a connecting tube 31 in a circular shape. The connecting tube 31 has a through hole inside. The bottom of connector B3 is fixedly installed with a cylinder 32 on the outer ring of the connecting tube 31. The outer ring of the cylinder 32 has a threaded groove.

[0026] After setting the cylinder 32, threaded installation between it and the connecting device 4 can be achieved. By contacting the shell 43 with the cylinder 32 and rotating the shell 43, the shell 43 is spiraled around the outer ring of the cylinder 32, thus fixing the connecting device 4 to the bottom of the connector B3.

[0027] Please see Figures 1-4The end face of the connecting device 4 is uniformly fixed with a transmission column 42. The transmission column 42 is adapted to the internal through hole size of the connecting pipe 31. The end face of the connecting device 4 is rotatably mounted on the outer ring of the transmission column 42. The inner ring of the shell 43 is threaded, and the inner ring thread of the shell 43 is adapted to the outer ring thread groove of the cylinder 32.

[0028] After the transmission column 42 contacts the connecting pipe 31, rotate the shell 43 to the position of the outer ring of the cylinder 32 so that the inner ring thread of the shell 43 engages with the outer ring thread groove of the cylinder 32, thus fixing the position of the connecting device 4. When disassembling, rotate the shell 43 in the opposite direction to disengage the connection between the connecting device 4 and the connector B3.

[0029] Working principle: Before using this device, first make the transmission post 42 contact with the connecting tube 31, and the screw-driven shell 43 is located on the outer ring of the cylinder 32, so that the shell 43 is completely fitted on the outer ring of the cylinder 32. At the same time, the transmission post 42 is driven to insert into the through hole to achieve electrical connection. Connect one end of the transmission line 41 to the detection device. After the preparation is completed, wrap the monitoring coil 1 around the outer ring of the line to be detected, insert one end of the monitoring coil 1 into one side of the connector A2, so that the ring 11 contacts the shell 22. By rotating the shell 22 to the position of the outer ring groove, the ring 11 falls into the inside of the shell 22 and the position of the ring 11 is fixed. At the same time, insert the insertion post 21 into the insertion hole at one end of the monitoring coil 1, so that the monitoring coil 1 forms a complete ring coil. At this time, the line is monitored.

Claims

1. A distributed fault location and monitoring device for transmission lines, comprising a monitoring coil (1), characterized in that: The monitoring coil (1) is fixedly connected to a connector A (2) in the middle. One end of the connector A (2) is provided with a plug (21). One end of the connector A (2) is provided with an annular groove. A housing (22) is rotatably installed inside the annular groove. One end of the monitoring coil (1) is provided with a plug hole on the outer ring of the plug (21). The outer ring of the monitoring coil (1) is fixedly fitted with an annular sleeve (11). The outer ring of the connector A (2) is fixedly installed with a connector B (3). The bottom of the connector B (3) is threaded with a connecting device (4). The bottom of the connecting device (4) is fixedly connected with a transmission line (41).

2. The distributed fault location and monitoring device for transmission lines according to claim 1, characterized in that: The inner ring of the shell (22) is threaded, and the outer ring of the ring (11) is threaded. The threaded groove of the outer ring of the ring (11) is adapted to the thread of the inner ring of the shell (22).

3. The distributed fault location and monitoring device for transmission lines according to claim 2, characterized in that: The bottom of the connector B (3) is uniformly provided with a connecting tube (31) in a circular shape. The connecting tube (31) has a through hole inside. The bottom of the connector B (3) is fixedly installed with a cylinder (32) on the outer ring of the connecting tube (31). The outer ring of the cylinder (32) has a threaded groove.

4. The distributed fault location and monitoring device for transmission lines according to claim 3, characterized in that: The end face of the connecting device (4) is uniformly fixed with a transmission column (42). The transmission column (42) is adapted to the internal through hole size of the connecting pipe (31). The end face of the connecting device (4) is rotatably mounted with a shell (43) on the outer ring of the transmission column (42). The inner ring of the shell (43) is threaded, and the inner ring thread of the shell (43) is adapted to the outer ring thread groove of the cylinder (32).

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