Wind power plant current collection line protection device

Abstract

The invention discloses a wind power plant current collection line protection device, and relates to the technical field of wind power generation, and the device comprises a base pole tower, the upper end of which is transversely and fixedly provided with a plurality of positioning units; the secondary locking units are connected with the positioning unit, and power transmission main lines are arranged on the secondary locking units in a positioning and locking mode; the plurality of positioning wire clamps are fixedly arranged on the power transmission main wire, the positioning wire clamps are connected with a drainage wire, and the drainage wire is connected with a drop-out fuse and a transformer through an auxiliary drainage wire; according to the invention, the drainage wire and the power transmission main wire are stably fixed for many times, on one hand, when a certain fixing point fails, other fixing modes can be rapidly switched, the downtime is reduced, and the maintenance efficiency is improved, and on the other hand, the multiple fixing modes can significantly reduce the fault probability caused by wear of a single fixing point; and the reliability of the whole system is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, in particular to a wind farm collector line protection device. Background Art

[0002] The wind farm collection line is an important part of the wind farm. It is responsible for connecting the electricity generated by each wind turbine to the low-voltage side of the wind farm through the interconnection line, and then connecting it to the power grid after boosting. However, wind farms are usually located in open areas, such as mountain tops, seaside or other areas with high wind speeds. The wind conditions in these places pose challenges to the stability and safety of the collection line.

[0003] Traditional collector line protection devices mainly rely on fixed support structures to maintain the position and tension of transmission lines. This fixing method can keep the line stable under normal wind speeds, but in strong winds, the transmission lines are prone to swinging, which will not only cause wear on the lines themselves, but may also cause contact problems between the drainage lines and the collector lines, such as slipping and loosening. If the above problems are not discovered and handled in time, they may cause circuit breakers and affect the normal operation of the wind farm.

[0004] In addition, the swaying of the drainage wires in strong winds may also cause contact between adjacent drainage wires, thereby causing short circuit tripping, which will not only affect the efficiency of power transmission, but may also cause damage to the equipment in the wind farm and even endanger the safety of operation and maintenance personnel.

[0005] Therefore, it is necessary to provide a wind farm collector line protection device to solve the technical problems raised in the above background technology. Summary of the invention

[0006] In view of the above problems, the present invention provides a wind farm collector line protection device, which performs the first fixation of the power transmission main line through a first U-shaped buckle and a T-shaped body. After the first fixation fails, the upper locking plate, the lower locking plate and the power transmission main line are moved, and the power transmission main line is fixed for a second time through the wiring terminal, the threaded rod and the fixing nut. After the second fixation fails, the power transmission main line is fixed for a third time through the upper locking plate, the lower locking plate, the hook spring and the T-shaped body. After the third fixation fails, the positioning wire clamp can limit the upper locking plate and the lower locking plate, and the power transmission main line can be fixed for the fourth time through the drainage line and the positioning wire clamp, thereby ensuring multiple stable fixations of the drainage line and the transmission main line. On the one hand, when a certain fixing point fails, it can be quickly switched to other fixing methods to reduce downtime and improve maintenance efficiency. On the other hand, multiple fixing methods can significantly reduce the probability of failures caused by wear of a single fixing point, thereby improving the reliability of the entire system.

[0007] To achieve the above object, the present invention provides the following technical solution: a wind farm collector line protection device, comprising:

[0008] A base pole tower, wherein a plurality of positioning units are transversely fixedly arranged on the upper end of one side thereof, a plurality of third column insulators are transversely fixedly arranged on the upper end of the other side thereof, a plurality of first column insulators are transversely fixedly arranged on the base pole tower located at the lower end of the positioning unit, and a plurality of second column insulators are transversely fixedly arranged on the top end of the base pole tower;

[0009] A plurality of secondary locking units are configured, each of which is connected to the positioning unit, and each of the secondary locking units is provided with a power transmission main line for positioning and locking, and each of the ends of the power transmission main line is fixedly provided with a wiring terminal, and each of the wiring terminals is fixedly provided with the first column insulator;

[0010] A plurality of positioning wire clamps are configured, each of which is fixedly arranged on a side of the main transmission line away from the secondary locking unit and the first post insulator, each of which is fixedly arranged with a drainage wire, and each of which passes through the second post insulator and is fixedly arranged with the third post insulator;

[0011] The drop-out fuses are configured as a plurality of them, all of which are fixedly arranged on the base tower, one end of each of the drop-out fuses is fixedly arranged on the third column insulator through an auxiliary drain line, the other end of each of the drop-out fuses is connected to a transformer through the auxiliary drain line, and the transformer is fixedly arranged on the base tower, the auxiliary drain lines are arranged corresponding to the drain lines and the main transmission line, and the auxiliary drain lines are electrically connected to the corresponding drain lines and the main transmission line; and

[0012] The branching unit is fixedly arranged on the base tower, and the auxiliary drain lines between the drop fuse and the transformer are separated and positioned by the branching unit.

[0013] In a possible implementation, the output ends of the transformers are connected with insulating lines, the insulating lines are connected to the substation, and the insulating lines are also connected to a monitoring unit fixedly arranged on the base tower.

[0014] In a possible implementation, the positioning unit includes a plurality of insulators that are fixedly disposed on the base pole tower in sequence, and a locking shaft is fixedly disposed on one end of the insulator away from the base pole tower.

[0015] In a possible implementation, the secondary locking unit includes:

[0016] A T-shaped body, an inner groove is provided inside the body, a rotating shaft is fixedly provided on a side of the T-shaped body close to the positioning unit, and a hook seat is fixedly provided on the lower end of the T-shaped body away from the positioning unit, a plurality of mounting holes are evenly penetrated through the lower end of the T-shaped body, a first U-shaped buckle can be installed in the mounting hole, and a first locking nut is threadedly connected on a side of the first U-shaped buckle away from the inner groove;

[0017] The lower locking plate has first limiting holes on both the front and rear sides thereof, a second U-shaped buckle is installed in the first limiting hole, and the lower end of the second U-shaped buckle is connected to the hook seat through a hook spring; and

[0018] The upper locking plate has second limiting holes on both the front and rear sides, the second limiting holes are arranged corresponding to the first limiting holes, a second U-shaped buckle is installed in the second limiting hole, and the second U-shaped buckle located at the upper end of the upper locking plate is threadedly connected with a second locking nut.

[0019] In a possible implementation, positioning holes are formed through the sides of the lower locking plate and the upper locking plate that are in contact with the power transmission main line.

[0020] In a possible implementation manner, the rotating shaft is rotatably disposed on the locking shaft.

[0021] In a possible implementation, a threaded rod is fixedly provided at one end of the first column insulator away from the base tower, a fixing nut is threadedly connected to the threaded rod, the wiring terminal can be passed through the threaded rod, and the wiring terminal and the first column insulator are fixedly provided via the fixing nut and the threaded rod.

[0022] In a possible implementation, the length of the drainage line extending from the positioning wire clamp on the side away from the base tower is 3-5 cm.

[0023] In a possible implementation, the branch line unit includes a fourth column insulator that is laterally symmetrically arranged on the other side of the base pole tower, and the side of the fourth column insulator away from the base pole tower is fixed to the lead positioning clamp, and the lead positioning clamp is respectively provided with a plurality of lead holes with fixed intervals, the lead holes are arranged corresponding to the auxiliary drainage wires, and the auxiliary drainage wires are passed through the lead holes.

[0024] In a possible implementation, a wireless communication unit is installed in the monitoring unit, and the wireless communication unit is communicatively connected with the central control unit.

[0025] Compared with the prior art, the present invention provides a wind farm collector line protection device having the following features:

[0026] Beneficial effects:

[0027] 1. The present invention performs the first fixation of the power transmission main line through the first U-shaped buckle and the T-shaped body. After the first fixation fails, the upper locking plate, the lower locking plate and the power transmission main line are moved, and the power transmission main line is fixed for the second time through the terminal, the threaded rod and the fixing nut. After the second fixation fails, the power transmission main line is fixed for the third time through the upper locking plate, the lower locking plate, the hook spring and the T-shaped body. After the third fixation fails, the positioning wire clamp can limit the upper locking plate and the lower locking plate, and the power transmission main line can be fixed for the fourth time through the drainage line and the positioning wire clamp, so as to ensure multiple stable fixation of the drainage line and the transmission main line. On the one hand, when a certain fixing point fails, it can be quickly switched to other fixing methods to reduce downtime and improve maintenance efficiency. On the other hand, multiple fixing methods can significantly reduce the probability of failure caused by wear of a single fixing point and improve the reliability of the entire system.

[0028] 2. The present invention distinguishes the auxiliary drainage lines by setting up a branching unit to ensure that each auxiliary drainage line has enough space, effectively preventing the auxiliary drainage lines from short-circuiting due to swaying and sticking in windy weather, reducing the chance of mutual contact, avoiding the current surge caused by short circuit, reducing damage to equipment such as transformers and drop fuses, and extending the service life of the equipment.

[0029] 3. The present invention uses a rotating shaft and a T-shaped body to limit the main transmission line laterally, which can effectively avoid large swings of the main transmission line, making the line more stable under the action of wind force and reducing wear and damage caused by swinging. After a fixing failure, the swing of the main transmission line can be relieved and buffered by a hook spring, reducing the stress on the fixing point and the line itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention.

[0031] Figure 1 It is a schematic diagram of the overall structure of a wind farm collector line protection device;

[0032] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0034] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0035] Figure 5It is a structural schematic diagram of a secondary locking unit in a wind farm collector line protection device;

[0036] Figure 6 for Figure 1 Schematic diagram of the enlarged structure at D in the middle;

[0037] Figure numerals: 1. base tower; 2. positioning unit; 21. insulator; 22. locking shaft; 3. secondary locking unit; 31. T-shaped body; 32. inner groove; 33. rotating shaft; 34. first U-shaped buckle; 35. first locking nut; 36. hook seat; 37. hook spring; 38. second U-shaped buckle; 39. lower locking plate; 310. upper locking plate; 311. second locking nut; 4. main transmission line; 41. terminal; 5. first column insulator; 51. threaded rod; 52. fixing nut; 6. second column insulator; 7. third column insulator; 8. positioning wire clamp; 9. drain wire; 10. drop fuse; 11. auxiliary drain wire; 12. branch line unit; 121. fourth column insulator; 122. lead positioning clamp; 123. lead hole; 13. transformer; 14. insulated line; 15. monitoring unit. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] See also Figure 1-Figure 6 The embodiment of the present invention provides a wind farm collector line protection device, which includes:

[0041] A base pole tower 1, a plurality of positioning units 2 are transversely fixedly arranged on the upper end of one side, a plurality of third column insulators 7 are transversely fixedly arranged on the upper end of the other side, a plurality of first column insulators 5 are transversely fixedly arranged on the base pole tower 1 located at the lower end of the positioning unit 2, and a plurality of second column insulators 6 are transversely fixedly arranged on the top of the base pole tower 1;

[0042] The secondary locking units 3 are configured as a plurality of units, all of which are connected to the positioning unit 2, and the secondary locking units 3 are all positioned and locked with the power transmission main line 4, and the ends of the power transmission main line 4 are all fixedly provided with wiring terminals 41, and the wiring terminals 41 are all fixedly provided with the first column insulator 5;

[0043] A plurality of positioning wire clamps 8 are configured, each of which is fixedly arranged on a side of the main transmission line 4 away from the secondary locking unit 3 and the first post insulator 5, and each of the positioning wire clamps 8 is fixedly provided with a drain wire 9, and each of the drain wires 9 is passed through the second post insulator 6 and is fixedly arranged with the third post insulator 7;

[0044] The drop-out fuse 10 is configured as a plurality of them, each of which is fixedly arranged on the base tower 1, one end of each of the drop-out fuses 10 is fixedly arranged on the third column insulator 7 through an auxiliary drain line 11, the other end of each of the drop-out fuses 10 is connected to a transformer 13 through the auxiliary drain line 11, and the transformer 13 is fixedly arranged on the base tower 1, the auxiliary drain lines 11 are arranged corresponding to the drain lines 9 and the main transmission line 4, and the auxiliary drain lines 11 are electrically connected to the corresponding drain lines 9 and the main transmission line 4; and

[0045] The branching unit 12 is fixedly arranged on the base tower 1 , and the auxiliary drain lines 11 between the drop fuse 10 and the transformer 13 are separated and positioned by the branching unit 12 .

[0046] Based on the above technical solution, when erecting the main transmission line 4, first install the positioning unit 2, the secondary locking unit 3, the first column insulator 5, the second column insulator 6, the third column insulator 7, the drop-out fuse 10 and the transformer 13 on the base tower 1, then insert the end of the main transmission line 4 into the secondary locking unit 3, fix the end of the main transmission line 4 to the wiring terminal 41, then fix the wiring terminal 41 to the first column insulator 5, use the positioning wire clamp 8 to fix the drain wire 9 to the main transmission line 4, then insert the drain wire 9 into the second column insulator 6 and fix it to the third column insulator 7, use the auxiliary drain wire 11 to electrically connect the drain wire 9 of the third column insulator 7 to the drop-out fuse 10, then use the auxiliary drain wire 11 to sequentially insert it into the branching unit 12, and electrically connect the drop-out fuse 10 to the transformer 13.

[0047] On the basis of the above technical scheme, the transmission main line 4 is fixed for the first time by connecting the secondary locking unit 3 and the positioning unit 2. After the first fixation fails, the transmission main line 4 is fixed for the second time by using the terminal 41 and the first column insulator 5. After the second fixation fails, the transmission main line 4 is fixed for the third time by connecting the secondary locking unit 3 and the positioning unit 2. After the third fixation fails, the positioning wire clamp 8 can limit the secondary locking unit 3, and the transmission main line 4 can be fixed for the fourth time by the drainage line 9 and the positioning wire clamp 8, so as to ensure the multiple stable fixation of the drainage line 9 and the transmission main line 4. On the one hand, when a certain fixing point fails, it can be quickly switched to other fixing methods to reduce downtime and improve maintenance efficiency. On the other hand, multiple fixing methods can significantly reduce the probability of failure caused by wear of a single fixing point and improve the reliability of the entire system.

[0048] It needs to be explained that, compared with directly connecting the main line 4 to the drop fuse 10, the drain line 9 is provided to connect the third column insulator 7 with the main transmission line 4, and the auxiliary drain line 11 is provided to connect the third column insulator 7 with the drop fuse 10. This can effectively avoid the tension of the main line 4 acting directly on the drop fuse 10 after the fourth fixing failure, thereby reducing the circuit-breaking failure of the drop fuse 10 and the auxiliary drain line 11.

[0049] In a possible implementation, the output ends of the transformers 13 are connected with insulating lines 14, which are connected to the substation and are also connected to a monitoring unit 15 fixedly disposed on the base tower 1, which provides sufficient power for the monitoring unit 15, so that the monitoring unit 15 can monitor circuit faults.

[0050] In a possible implementation, the positioning unit 2 includes a plurality of insulators 21 that are sequentially fixed to the base pole tower 1 , and a locking shaft 22 is fixedly disposed at one end of the insulator 21 away from the base pole tower 1 .

[0051] In a possible implementation manner, the secondary locking unit 3 includes:

[0052] A T-shaped body 31 is provided with an inner groove 32, a rotating shaft 33 is fixedly provided on a side of the T-shaped body 31 close to the positioning unit 2, and a hook seat 36 is fixedly provided on the lower end of the T-shaped body 31 away from the positioning unit 2, a plurality of mounting holes are evenly penetrated through the lower end of the T-shaped body 31, a first U-shaped buckle 34 can be installed in the mounting hole, and a first locking nut 35 is threadedly connected to a side of the first U-shaped buckle 34 away from the inner groove 32;

[0053] The lower locking plate 39 has first limiting holes on both the front and rear sides thereof, a second U-shaped buckle 38 is installed in the first limiting hole, and the lower end of the second U-shaped buckle 38 is connected to the hook seat 36 through a hook spring 37; and

[0054] The upper locking plate 310 has second limiting holes on both the front and rear sides, and the second limiting holes are arranged corresponding to the first limiting holes. The second U-shaped buckle 38 is installed in the second limiting hole, and the second U-shaped buckle 38 located at the upper end of the upper locking plate 310 is threadedly connected with a second locking nut 311.

[0055] Through the above technical scheme, the first U-shaped buckle 34 is first inserted into the mounting hole, and the first U-shaped buckle 34 is installed on the T-shaped body 31 using the first locking nut 35, and then the second U-shaped buckle 38 is inserted into the first limiting hole and the second limiting hole, and the lower locking plate 39 and the upper locking plate 310 are connected using the second locking nut 311 and the second U-shaped buckle 38, and finally the hook seat 36 and the second U-shaped buckle 38 are connected by the hook spring 37.

[0056] In a possible implementation, positioning holes are provided through the sides of the lower locking plate 39 and the upper locking plate 310 that are in contact with the main transmission line 4. That is to say, when erecting the main transmission line 4, the end of the main transmission line 4 is first inserted into the positioning hole and the first U-shaped buckle 34 in sequence, the end of the main transmission line 4 is fixed to the terminal 41, and then the terminal 41 is fixed to the first column insulator 5, and then the first locking nut 35 and the first U-shaped buckle 34, and the second locking nut 311 and the second U-shaped buckle 38 are tightened.

[0057] In a possible implementation, the rotating shaft 33 is rotatably arranged on the locking shaft 22, so that the main transmission line 4 is laterally limited by the rotating shaft 33 and the T-shaped body 31, which can effectively avoid the main transmission line 4 from swinging significantly, making the line more stable under the action of wind force, reducing the wear and damage caused by the swing, and after a fixing failure, the swing of the main transmission line 4 can be relieved and buffered by the hook spring 37, thereby reducing the stress on the fixing point and the line itself.

[0058] In a possible implementation manner, a threaded rod 51 is fixedly provided at one end of the first column insulator 5 away from the base tower 1, and a fixing nut 52 is threadedly connected to the threaded rod 51. The wiring terminal 41 can be inserted into the threaded rod 51, and the wiring terminal 41 and the first column insulator 5 are fixedly arranged by the fixing nut 52 and the threaded rod 51. The wiring terminal 41 is sleeved on the threaded rod 51 and fixed to the first column insulator 5 by the fixing nut 52.

[0059] In a possible implementation, the length of the drainage wire 9 extending out of the positioning wire clamp 8 on the side away from the base tower 1 is 3-5 cm. After the fourth fixation failure, the surface of the drainage wire 9 on the outside of the positioning wire clamp 8 is not worn, and the extra length of the drainage wire 9 can delay the detachment of the drainage wire 9 from the fixing wire clamp 8.

[0060] In a possible implementation, the branching unit 12 includes a fourth column insulator 121 that is laterally symmetrically arranged on the other side of the base tower 1, and the side of the fourth column insulator 121 away from the base tower 1 is fixedly arranged with a lead positioning clamp 122, and the lead positioning clamp 122 is respectively provided with a plurality of lead holes 123 with fixed intervals, and the lead holes 123 are arranged corresponding to the auxiliary drainage wire 11, and the auxiliary drainage wire 11 is passed through the lead holes 123.

[0061] By adopting the above technical solution, after the branching unit 12 is fixed to the base tower 1, the auxiliary drainage line 11 is sequentially inserted into each lead hole 123, and the drop fuse 10 is electrically connected to the transformer 13, so that the auxiliary drainage lines 11 are distinguished by the arranged branching unit 12, ensuring that each auxiliary drainage line 11 has sufficient space, effectively preventing the short circuit caused by the swinging and fitting of the auxiliary drainage lines 11 in windy weather, reducing the chance of mutual contact, avoiding the current surge caused by the short circuit, reducing the damage to the transformer 13, the drop fuse 10 and other equipment, and extending the service life of the equipment.

[0062] In a possible implementation, a wireless communication unit is installed in the monitoring unit 15 , and the wireless communication unit is communicatively connected with the central control unit.

[0063] It should be noted that a power storage unit is installed in the monitoring unit 15, which can provide sufficient power for the monitoring unit 15. When the monitoring unit 15 detects a line fault, it communicates remotely with the central control unit to ensure that maintenance personnel can find the fault point in time and eliminate and repair it.

[0064] In specific implementation, when erecting the transmission main line 4, first, the end of the transmission main line 4 is sequentially inserted into the positioning hole and the first U-shaped buckle 34, and then the end of the transmission main line 4 is fixed to the terminal 41, and then the terminal 41 is sleeved on the threaded rod 51, and the terminal 41 is fixed to the first column insulator 5 through the fixing nut 52, and then the first locking nut 35 is tightened with the first U-shaped buckle 34, and the second locking nut 311 is tightened with the second U-shaped buckle 38, and the drainage wire 9 is fixed to the transmission main line 4 by using the positioning wire clamp 8, and then the drainage wire 9 is inserted into the second column insulator 6 and fixed to the third column insulator 7, and the drainage wire 9 of the third column insulator 7 is electrically connected to the drop fuse 10 by using the auxiliary drainage wire 11, and then the auxiliary drainage wire 11 is sequentially inserted into each lead hole 123, and the drop fuse 10 is electrically connected to the transformer 13;

[0065] The power transmission main line 4 is fixed for the first time by connecting the first U-shaped buckle 34, the first locking nut 35, the T-shaped main body 31 and the positioning unit 2. After the first fixation fails, the upper locking plate 310, the lower locking plate 39 and the power transmission main line 4 are moved, and the power transmission main line 4 is fixed for the second time by the connection terminal 41, the threaded rod 51 and the fixing nut 52. After the second fixation fails, the power transmission main line 4 is fixed for the third time by connecting the upper locking plate 310, the lower locking plate 39, the hook spring 37, the T-shaped main body 31 and the positioning unit 2. After the third fixation fails, the positioning wire clamp 8 can limit the upper locking plate 310 and the lower locking plate 39, and the power transmission main line 4 can be fixed for the fourth time by the drainage line 9 and the positioning wire clamp 8;

[0066] When the monitoring unit 15 detects a line fault, it communicates remotely with the central control unit to ensure that maintenance personnel can find the fault point in time and eliminate and repair it.

[0067] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind farm collector line protection device, characterized in that: include: A base pole tower (1), wherein a plurality of positioning units (2) are transversely fixedly arranged on the upper end of one side, a plurality of third column insulators (7) are transversely fixedly arranged on the upper end of the other side, a plurality of first column insulators (5) are transversely fixedly arranged on the base pole tower (1) located below the positioning units (2), and a plurality of second column insulators (6) are transversely fixedly arranged on the top end of the base pole tower (1); The secondary locking units (3) are configured as a plurality of units, each of which is connected to the positioning unit (2), and each of the secondary locking units (3) is provided with a power transmission main line (4) for positioning and locking, and each of the ends of the power transmission main line (4) is fixedly provided with a connection terminal (41), and each of the connection terminals (41) is fixedly provided with the first column insulator (5); A plurality of positioning wire clamps (8) are configured, each of which is fixedly arranged on a side of the power transmission main line (4) away from the secondary locking unit (3) and the first column insulator (5), each of which is fixedly arranged with a drain wire (9), and each of which passes through the second column insulator (6) and is fixedly arranged with the third column insulator (7); A plurality of dropout fuses (10) are arranged, each of which is fixedly arranged on the base pole tower (1), one end of each dropout fuse (10) is fixedly arranged on the third column insulator (7) via an auxiliary drain line (11), the other end of each dropout fuse (10) is connected to a transformer (13) via the auxiliary drain line (11), and the transformer (13) is fixedly arranged on the base pole tower (1), the auxiliary drain lines (11) are arranged correspondingly to the drain lines (9) and the power transmission main line (4), and the auxiliary drain lines (11) are electrically connected to the corresponding drain lines (9) and the power transmission main line (4); and A branching unit (12) is fixedly arranged on the base tower (1), and the auxiliary drain lines (11) located between the drop fuse (10) and the transformer (13) are separated and positioned by the branching unit (12).

2. A wind farm collector line protection device according to claim 1, characterized in that: The output ends of the transformers (13) are connected to insulating lines (14), the insulating lines (14) are connected to the transformer substation, and the insulating lines (14) are also connected to a monitoring unit (15) fixedly arranged on the base tower (1).

3. A wind farm collector line protection device according to claim 1, characterized in that: The positioning unit (2) comprises a plurality of insulators (21) which are fixedly arranged on the base pole tower (1) in sequence, and a locking shaft (22) is fixedly arranged on one end of the insulator (21) away from the base pole tower (1).

4. A wind farm collector line protection device according to claim 3, characterized in that: The secondary locking unit (3) comprises: A T-shaped body (31) is provided with an inner groove (32) therein; a rotating shaft (33) is fixedly provided on a side of the T-shaped body (31) close to the positioning unit (2); and a hook seat (36) is fixedly provided on a lower end of the T-shaped body (31) away from the positioning unit (2); a plurality of mounting holes are evenly penetrated through the lower end of the T-shaped body (31); a first U-shaped buckle (34) can be installed in the mounting hole; and a first locking nut (35) is threadedly connected to a side of the first U-shaped buckle (34) away from the inner groove (32); The lower locking plate (39) has first limiting holes on both the front and rear sides thereof, a second U-shaped buckle (38) is installed in the first limiting hole, and the lower end of the second U-shaped buckle (38) is connected to the hook seat (36) through a hook spring (37); and The upper locking plate (310) has second limiting holes on both the front and rear sides, the second limiting holes are arranged corresponding to the first limiting holes, a second U-shaped buckle (38) is installed in the second limiting hole, and the second U-shaped buckle (38) located at the upper end of the upper locking plate (310) is threadedly connected with a second locking nut (311).

5. A wind farm collector line protection device according to claim 4, characterized in that: Positioning holes are provided through the sides of the lower locking plate (39) and the upper locking plate (310) that are in contact with the power transmission main line (4).

6. A wind farm collector line protection device according to claim 4, characterized in that: The rotating shaft (33) is rotatably arranged on the locking shaft (22).

7. A wind farm collector line protection device according to claim 1, characterized in that: A threaded rod (51) is fixedly arranged at one end of the first column insulator (5) away from the base pole tower (1); a fixing nut (52) is threadedly connected to the threaded rod (51); the wiring terminal (41) can be inserted into the threaded rod (51), and the wiring terminal (41) and the first column insulator (5) are fixedly arranged via the fixing nut (52) and the threaded rod (51).

8. A wind farm collector line protection device according to claim 1, characterized in that: The length of the drainage wire (9) extending from the positioning wire clamp (8) on the side away from the base tower (1) is 3-5 cm.

9. A wind farm collector line protection device according to claim 1, characterized in that: The branching unit (12) comprises a fourth column insulator (121) which is laterally symmetrically arranged on the other side of the base pole tower (1); the side of the fourth column insulator (121) away from the base pole tower (1) is fixedly arranged with a lead wire positioning clamp (122); the lead wire positioning clamp (122) is respectively provided with a plurality of lead wire holes (123) with fixed intervals; the lead wire holes (123) are arranged corresponding to the auxiliary drainage wire (11), and the auxiliary drainage wire (11) is passed through the lead wire holes (123).

10. A wind farm collector line protection device according to claim 2, characterized in that: A wireless communication unit is installed in the monitoring unit (15), and the wireless communication unit is communicatively connected with the central control unit.

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