Outdoor high-voltage primary and secondary integrated complete set pole circuit breaker

Abstract

This application discloses an outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker, relating to the field of pole-mounted circuit breaker technology. The application includes a circuit breaker body, with terminals mounted on its upper end. A current transformer is mounted on one side of the circuit breaker body, a first voltage transformer is mounted on the side of the current transformer away from the circuit breaker body, and a second voltage transformer is mounted on the side of the circuit breaker body away from the current transformer. A mounting base is mounted on the lower end of the circuit breaker body, and a supporting diagonal rod is fixed to the lower end of the mounting base. Fixing clamps are fixed to both the end of the mounting base and the end of the supporting diagonal rod. A displacement structure is provided between the circuit breaker body and the mounting base, and a limiting structure is provided on the side of the mounting base. The displacement structure allows for horizontal adjustment of the entire circuit breaker's position, enabling precise docking between the circuit breaker and adjacent equipment.

Description

Technical Field

[0001] This application relates to the field of pole-mounted circuit breaker technology, and in particular to an outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker. Background Technology

[0002] The outdoor high-voltage primary and secondary integrated pole-mounted circuit breaker is a complete pole-mounted circuit breaker equipment that integrates industry-leading advanced technologies such as electronic voltage sensors, current sensors, power metering modules, and high-speed fault transient recording.

[0003] The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker is used for the segmentation and interconnection functions of 10kV distribution network trunk lines. It adopts a fully sealed and fully insulated design. The circuit breaker body and the three-remote feeder terminal are connected by aviation connectors. All aviation connectors use military-grade parts. The cables and aviation connectors are fully sealed, and it has an extremely high protection level. It has the functions of calculating active power, reactive power, power factor, frequency and electrical energy. It has adaptive integrated local feeder automation functions. The integrated primary and secondary circuit breaker equipment has built-in high-precision, wide-range voltage sensors to collect three-phase voltage and zero-sequence voltage to meet the measurement and metering functions of feeder terminals (FTUs). The pole-mounted circuit breaker has built-in a set of high-precision current sensors to collect three-phase current and zero-sequence current, providing current signals for measurement, protection and metering functions.

[0004] Existing pole-mounted circuit breakers are mostly installed on utility poles using fixed brackets. However, due to factors such as errors in terrain measurement and temporary changes in the construction environment, the actual installation position of the circuit breaker often deviates horizontally from the planned position. This deviation can cause the circuit breaker to be unable to accurately connect with the line insulators, cable branch boxes and other supporting power equipment on adjacent poles, resulting in difficulties in line connection. Utility Model Content

[0005] The purpose of this application is to solve the problem of horizontal deviation of pole-mounted circuit breakers, which causes the circuit breaker to be unable to accurately connect with adjacent power equipment, by means of an adjustable structure. This application provides an outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] An outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker includes a circuit breaker body, a terminal block installed on the upper end of the circuit breaker body, a current transformer installed on one side of the circuit breaker body, a first voltage transformer installed on the side of the current transformer away from the circuit breaker body, a second voltage transformer installed on the side of the circuit breaker body away from the current transformer, a mounting base installed on the lower end of the circuit breaker body, a supporting diagonal rod fixed to the lower end of the mounting base, and fixing clamps fixed to the ends of the mounting base and the supporting diagonal rod. The two ends of the fixing clamps are connected by bolts and nuts. A displacement structure is provided between the circuit breaker body and the mounting base, and a limiting structure is provided on the side of the mounting base.

[0008] By adopting the above technical solution, when installing this outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker, two fixing clamps are fixed to the pre-set positions on the utility pole to achieve the installation of the circuit breaker. Afterwards, the circuit breaker is connected to other lines. A displacement structure is used to adjust the horizontal position of the entire circuit breaker, thereby facilitating docking with adjacent equipment.

[0009] Furthermore, the displacement structure includes a support rod fixed inside the mounting base, a threaded rod rotatably connected inside the mounting base, one end of the threaded rod passing through the support rod and rotatably connected to the support rod, a handle fixed to the end of the threaded rod passing through the support rod, and a moving block fixed to the lower end of the circuit breaker body, the moving block being threadedly connected to the threaded rod.

[0010] By adopting the above technical solution, after the circuit breaker is installed, the horizontal direction of the circuit breaker can be adjusted by the displacement structure, which facilitates docking with adjacent equipment.

[0011] Furthermore, the inner wall of the mounting base has two symmetrically arranged guide grooves, and the lower end of the circuit breaker body has two symmetrically arranged connecting blocks, with several guide wheels rotatably connected to the sides of the connecting blocks.

[0012] By adopting the above technical solution, the guide wheel and guide groove can play a guiding and further supporting role, making the movement of the circuit breaker body more stable.

[0013] Furthermore, the guide wheel extends into the guide groove, and the surface of the guide wheel is in contact with the inner wall of the guide groove.

[0014] By adopting the above technical solution, when the circuit breaker body moves, the guide wheel rotates inside the guide groove. During the rotation, the friction is small, which makes the movement of the circuit breaker body smoother.

[0015] Furthermore, the limiting structure includes a mounting housing fixed to the side of the mounting base, the mounting housing being disposed corresponding to the guide groove, a limiting plate being installed inside the mounting housing, and the limiting plate being slidably disposed with respect to the mounting housing and the guide groove.

[0016] By adopting the above technical solution, after the circuit breaker position is adjusted, the guide wheel can be restricted by the limiting structure, thereby improving the restriction effect on the circuit breaker body and thus improving the installation stability of the circuit breaker.

[0017] Furthermore, a limiting rod is rotatably connected to the side of the limiting plate, the limiting rod passes through the mounting housing and is threadedly connected to the mounting housing, and the end of the limiting plate is in contact with the inner wall of the mounting housing.

[0018] By adopting the above technical solution, turning the limiting rod causes the limiting plate to move toward the guide wheel, thereby achieving the limitation of the guide wheel.

[0019] Furthermore, a reinforcing plate is fixed to the side of the limiting plate away from the limiting rod, and the surface of the reinforcing plate is rough.

[0020] By adopting the above technical solution, when restricting the guide wheel, the rough-surfaced reinforcing plate fits into the guide wheel, which can increase the friction between the restricting plate and the guide wheel, thereby improving the restriction effect on the guide wheel.

[0021] Furthermore, two symmetrically arranged mounting blocks are fixed at the lower end of the circuit breaker body, and a support block is fixed on the side of the mounting block, with the support block sliding into the guide groove.

[0022] By adopting the above technical solution, the support block is located inside the guide groove. The support block is connected to the mounting base, which can improve the support force between the circuit breaker and the mounting base and improve the installation stability of the circuit breaker.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. In this application, after the circuit breaker is installed on the utility pole and connected to other lines, turning the handle at the end of the threaded rod in the forward direction causes the threaded rod to rotate. Under the action of the moving block, guide wheel, guide groove, and other structures, the moving block drives the circuit breaker body to move horizontally, so that the circuit breaker corresponds with the adjacent equipment. The displacement structure allows for horizontal adjustment of the entire circuit breaker's position, thereby enabling the circuit breaker to correspond with the adjacent equipment and achieving precise docking between the circuit breaker and the adjacent equipment.

[0025] 2. In this application, after the circuit breaker's horizontal position is adjusted, the limiting rod is turned, causing it to move towards the interior of the mounting housing. This movement pushes the limiting plate, which in turn moves the reinforcing plate, causing it to engage with the guide wheel, thus restricting the guide wheel. By using this restrictive structure to limit the guide wheel, the overall restrictive effect on the circuit breaker is improved, making the connection between the circuit breaker and the mounting base more stable. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the integrated primary and secondary pole-mounted circuit breaker in this application;

[0027] Figure 2 This is a schematic diagram of the second three-dimensional structure of the integrated primary and secondary pole-mounted circuit breaker in this application;

[0028] Figure 3 This is a disassembly diagram of the primary and secondary integrated pole-mounted circuit breaker and mounting base in this application;

[0029] Figure 4 This application Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a partial three-dimensional structural diagram of the restriction structure in this application;

[0031] Figure 6 This is a cross-sectional view of the restricted structure in this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Circuit breaker body; 11. Terminal block; 12. Current transformer; 13. First voltage transformer; 14. Second voltage transformer; 2. Mounting base; 21. Supporting diagonal rod; 22. Fixing clamp; 3. Displacement structure; 31. Support rod; 32. Threaded rod; 33. Handle; 34. Moving block; 35. Guide groove; 36. Connecting block; 37. Guide wheel; 4. Limiting structure; 41. Mounting housing; 42. Limiting plate; 43. Limiting rod; 44. Reinforcing plate; 5. Mounting block; 51. Support block. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses an outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker.

[0036] Reference Figures 1-3An outdoor high-voltage integrated pole-mounted circuit breaker includes a circuit breaker body 1, a terminal block 11 installed on the upper end of the circuit breaker body 1, a current transformer 12 installed on one side of the circuit breaker body 1, a first voltage transformer 13 installed on the side of the current transformer 12 away from the circuit breaker body 1, a second voltage transformer 14 installed on the side of the circuit breaker body 1 away from the current transformer 12, a mounting base 2 installed at the lower end of the circuit breaker body 1, a supporting diagonal rod 21 fixed at the lower end of the mounting base 2, and fixing clamps 22 fixed at both ends of the mounting base 2 and the supporting diagonal rod 21. The two ends of the fixing clamps 22 are connected by bolts and nuts. A displacement structure 3 is provided between the circuit breaker body 1 and the mounting base 2, and a limiting structure 4 is provided on the side of the mounting base 2.

[0037] When installing this outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker, two fixing clamps 22 are fixed to the pre-set positions on the utility pole to install the circuit breaker. Afterwards, the circuit breaker is connected to other equipment. The horizontal position of the entire circuit breaker can be adjusted using the displacement structure 3 to better align it with other equipment, thus enabling precise connection between the circuit breaker and other devices. This integrated primary and secondary pole-mounted circuit breaker features a wide frequency response range, wide measurement range, good linearity, strong anti-interference capability, small size, and light weight. It can simultaneously measure three-phase current and zero-sequence current, and sample protection signals, simplifying the system structure and reducing error sources. It can simultaneously meet the needs of secondary equipment such as metering, measurement, and protection.

[0038] Reference Figures 2-4 The displacement structure 3 includes a support rod 31 fixed inside the mounting base 2. A threaded rod 32 is rotatably connected inside the mounting base 2. One end of the threaded rod 32 passes through the support rod 31 and is rotatably connected to the support rod 31. A handle 33 is fixed to one end of the threaded rod 32 that passes through the support rod 31. A moving block 34 is fixed to the lower end of the circuit breaker body 1. The moving block 34 is threadedly connected to the threaded rod 32.

[0039] The mounting base 2 has two symmetrically arranged guide grooves 35 on its inner wall, and the circuit breaker body 1 has two symmetrically arranged connecting blocks 36 fixed at its lower end. Several guide wheels 37 are rotatably connected to the sides of the connecting blocks 36.

[0040] In addition, the guide wheel 37 extends into the guide groove 35, and the surface of the guide wheel 37 is in contact with the inner wall of the guide groove 35.

[0041] After the circuit breaker is installed on the utility pole, if it is not aligned with other equipment, the handle 33 at the end of the threaded rod 32 is turned to rotate the threaded rod 32. When the threaded rod 32 rotates, the moving block 34 is subjected to force, which in turn forces the circuit breaker body 1. This force on the circuit breaker body 1 forces the guide wheel 37, which, in conjunction with the guide groove 35, limits the movement of the circuit breaker body 1. This causes the moving block 34 to move the circuit breaker body 1 horizontally until it aligns with other equipment, after which it is connected. The displacement structure 3 allows for adjustment of the horizontal position of the entire circuit breaker, enabling precise alignment with adjacent equipment and facilitating subsequent wiring.

[0042] Reference Figures 3-6 The limiting structure 4 includes a mounting housing 41 fixed to the side of the mounting base 2 by threaded fasteners. The mounting housing 41 is correspondingly provided with the guide groove 35. A limiting plate 42 is installed inside the mounting housing 41. The limiting plate 42 is slidably disposed with respect to the mounting housing 41 and the guide groove 35.

[0043] The limiting rod 43 abuts against the side of the limiting plate 42, and the limiting rod 43 passes through the mounting housing 41 and is threadedly connected to the mounting housing 41.

[0044] In addition, a reinforcing plate 44 is fixed to the side of the limiting plate 42 away from the limiting rod 43, and the surface of the reinforcing plate 44 is rough.

[0045] After the horizontal position adjustment of the circuit breaker is completed, the limiting rod 43 is turned so that it moves towards the inside of the mounting housing 41. As the limiting rod 43 moves, it pushes the limiting plate 42 to move, which in turn moves the reinforcing plate 44, causing it to enter the guide groove 35 and contact the guide wheel 37. The limiting rods 43 on both sides of the mounting base 2 are then turned sequentially to restrict the guide wheel 37. It should be noted that after the limiting plate 42 moves to the restricted position, its thickness ensures that a portion remains inside the mounting housing 41, effectively restricting the guide wheel 37 and improving the overall fixation of the circuit breaker. This makes the circuit breaker more stable with the mounting base 2. After fixing, the limiting rod 43 can be locked by welding to prevent the circuit breaker from becoming loose and ensure its overall safety. If the circuit breaker needs to be removed or its position adjusted later, the mounting housing 41 can be removed.

[0046] Two symmetrically arranged mounting blocks 5 are fixed at the lower end of the circuit breaker body 1. Support blocks 51 are fixed on the side of the mounting blocks 5, and the support blocks 51 slide into the guide groove 35.

[0047] The support block 51 is located inside the guide groove 35 and is connected to the mounting base 2. It can further support the circuit breaker body 1, improve the support force between the circuit breaker body 1 and the mounting base 2, and improve the installation stability of the circuit breaker.

[0048] Working principle: When installing this outdoor high-voltage primary and secondary integrated pole-mounted circuit breaker, two fixing clamps 22 are fixed in the pre-set positions on the power pole to realize the installation of the circuit breaker. Then, the circuit breaker is connected to other equipment. If the circuit breaker does not correspond to other equipment, the handle 33 at the end of the threaded rod 32 is turned to rotate the threaded rod 32. When the threaded rod 32 rotates, the moving block 34 is subjected to force, which in turn forces the circuit breaker body 1. The force on the circuit breaker body 1 forces the guide wheel 37. The guide wheel 37, in conjunction with the guide groove 35, limits the circuit breaker body 1, causing the moving block 34 to drive the circuit breaker body 1 to move, so that the entire circuit breaker moves horizontally until the circuit breaker corresponds to other equipment, and then the connection is performed.

[0049] After the connection is completed, tighten the limiting rod 43 so that it moves toward the inside of the mounting housing 41. When the limiting rod 43 moves, it pushes the limiting plate 42 to move. The movement of the limiting plate 42 drives the reinforcing plate 44 to move, so that the reinforcing plate 44 enters the guide groove 35 and contacts the guide wheel 37. Tighten the limiting rods 43 on both sides of the mounting base 2 in sequence to restrict the guide wheel 37, so that the entire circuit breaker is more stably installed on the utility pole.

Claims

1. An outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker, comprising a circuit breaker body (1), characterized in that: The circuit breaker body (1) is equipped with a terminal block (11) at its upper end. A current transformer (12) is installed on one side of the circuit breaker body (1). A first voltage transformer (13) is installed on the side of the current transformer (12) away from the circuit breaker body (1). A second voltage transformer (14) is installed on the side of the circuit breaker body (1) away from the current transformer (12). A mounting base (2) is installed at the lower end of the circuit breaker body (1). A support rod (21) is fixed at the lower end of the mounting base (2). A fixing clamp (22) is fixed at the end of the mounting base (2) and the end of the support rod (21). The two ends of the fixing clamp (22) are connected by bolts and nuts. A displacement structure (3) is provided between the circuit breaker body (1) and the mounting base (2). A limiting structure (4) is provided on the side of the mounting base (2).

2. The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The displacement structure (3) includes a support rod (31) fixed inside the mounting base (2). A threaded rod (32) is rotatably connected inside the mounting base (2). One end of the threaded rod (32) passes through the support rod (31) and is rotatably connected to the support rod (31). A handle (33) is fixed to one end of the threaded rod (32) that passes through the support rod (31). A moving block (34) is fixed to the lower end of the circuit breaker body (1). The moving block (34) is threadedly connected to the threaded rod (32).

3. The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker according to claim 2, characterized in that: The mounting base (2) has two symmetrically arranged guide grooves (35) on its inner wall. The circuit breaker body (1) has two symmetrically arranged connecting blocks (36) fixed at its lower end. Several guide wheels (37) are rotatably connected to the side of the connecting blocks (36).

4. The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker according to claim 3, characterized in that: The guide wheel (37) extends into the guide groove (35), and the surface of the guide wheel (37) is in contact with the inner wall of the guide groove (35).

5. The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker according to claim 3, characterized in that: The limiting structure (4) includes a mounting housing (41) fixed to the side of the mounting base (2). The mounting housing (41) is correspondingly provided with the guide groove (35). A limiting plate (42) is installed inside the mounting housing (41). The limiting plate (42) is slidably disposed with respect to the mounting housing (41) and the guide groove (35).

6. The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker according to claim 5, characterized in that: The limiting plate (42) is rotatably connected to a limiting rod (43) on its side. The limiting rod (43) passes through the mounting housing (41) and is threadedly connected to the mounting housing (41). The end of the limiting plate (42) is in contact with the inner wall of the mounting housing (41).

7. The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker according to claim 6, characterized in that: A reinforcing plate (44) is fixed to the side of the limiting plate (42) away from the limiting rod (43), and the surface of the reinforcing plate (44) is rough.

8. The outdoor high-voltage integrated primary and secondary pole-mounted circuit breaker according to claim 4, characterized in that: The circuit breaker body (1) has two symmetrically arranged mounting blocks (5) fixed at its lower end. The mounting blocks (5) have a support block (51) fixed on their side. The support block (51) slides into the guide groove (35).

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