Primary and secondary fusion pole-mounted circuit breaker based on traveling wave distance measurement

Abstract

The utility model discloses a primary and secondary fusion pole-mounted circuit breaker based on traveling wave distance measurement, which comprises a circuit breaker base and three circuit breaker insulating columns electrically mounted at the top end of the circuit breaker base, and a ball screw and a second sliding rod are fixedly mounted at the top end of the circuit breaker respectively. And the ball screw and the second sliding rod are arranged among three circuit breaker insulation columns respectively, fixing rings are arranged over the three circuit breaker insulation columns, and driving gear rings are rotationally installed at the bottom ends of the three fixing rings. According to the utility model, when the transmission gear rings slide on the ball screw, the transmission gear rings can rotate, when one transmission gear ring rotates, a plurality of driving gear rings can be driven to rotate, and in the rotating process of the plurality of driving gear rings, the cleaning brushes on the inner walls of the plurality of driving gear rings can clean the insulating column of the circuit breaker.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a primary-secondary fusion column mounted circuit breaker based on traveling wave ranging. Background Art

[0002] Traveling wave ranging, as an efficient and accurate fault location technology, accurately calculates the location of the fault point by measuring the time difference of voltage and current traveling waves propagating on the line. When a transmission line fails, voltage and current traveling waves will be generated at the fault point, and these traveling waves will propagate along the line at a speed close to the speed of light. By using special detection equipment to capture these traveling wave signals, and by accurately measuring the time difference between the initial traveling wave and the reflected traveling wave arriving at the detection point, combined with parameters such as wave speed, traveling wave ranging can quickly and accurately determine the specific location of the fault. This technology is not affected by complex factors such as the transition resistance of the fault point and the line structure, so it has high ranging accuracy and a wide range of applications. In the power system, the application of traveling wave ranging technology is of great significance for shortening fault repair time, improving power supply reliability, and reducing power outage losses.

[0003] In traveling wave ranging, a primary and secondary fusion pole-mounted circuit breaker is needed. The use of a primary and secondary fusion pole-mounted circuit breaker can significantly improve the accuracy and efficiency of fault location. The primary and secondary fusion pole-mounted circuit breaker not only has the traditional circuit breaking function, but also integrates intelligent devices such as feeder terminals, which can collect and process key data such as line voltage and current in real time. These data are crucial for traveling wave ranging, because they can help us accurately capture the propagation time of the fault traveling wave, so as to accurately calculate the location of the fault point. Through the close combination of primary and secondary fusion pole-mounted circuit breakers and traveling wave ranging technology, we can locate faults more quickly, reduce power outage time, and improve the reliability and stability of the power system. Therefore, using a primary and secondary fusion pole-mounted circuit breaker in traveling wave ranging is a very effective practice.

[0004] Patent document CN218918745U discloses a primary-secondary fusion pole-mounted circuit breaker, comprising a base, a first fixing rod vertically installed on the top of the connecting seat located on the left and right sides, a second fixing rod vertically installed on the top of the connecting seat located in the middle position, a compression spring fixedly connected to the top of the first fixing rod, a sleeve fixedly installed on the top of the second fixing rod, a shock-absorbing telescopic column installed on the top of the sleeve, a buffer spring sleeved on the outer end of the shock-absorbing telescopic column, the compression spring and the top of the shock-absorbing telescopic column are both fixedly connected to a waterproof structure, and a bird repeller is installed on the top of the waterproof structure. The utility model transports rainwater to a position away from the pole-mounted circuit breaker through a slope or a water drop eaves, thereby preventing rainwater from falling directly on the pole-mounted circuit breaker and causing scouring thereof, thereby improving the waterproof effect of the pole-mounted circuit breaker.

[0005] As in the prior art of the above-mentioned patent, the above-mentioned primary and secondary fusion pole-mounted circuit breaker is a key equipment in the power system, and its normal operation is crucial to the stability of the power grid. However, this type of circuit breaker is usually installed outdoors and exposed to the natural environment for a long time, and is easily invaded by pollutants such as dust and dirt. The above-mentioned device does not perform dust and dust removal treatment on the equipment. These pollutants will not only affect the insulation performance of the equipment, but may also cause short circuits or equipment failures, thereby threatening the safe operation of the power grid. Therefore, it is particularly important to perform dust-proof treatment and regular dust removal on the primary and secondary fusion pole-mounted circuit breakers. However, the insulators of the primary and secondary fusion pole-mounted circuit breakers are arranged in a pagoda shape. Although this special structure improves the electrical performance of the equipment, it also increases the difficulty of dust removal. The pagoda-shaped insulators are complexly arranged and have many gaps, which are easy to accumulate dust and difficult to remove. Utility Model Content

[0006] The utility model aims to provide a primary-secondary fusion pole-mounted circuit breaker based on traveling wave ranging to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a primary-secondary fusion column-mounted circuit breaker based on traveling wave ranging, comprising a circuit breaker base and three circuit breaker insulating columns electrically installed on the top of the circuit breaker base, wherein a ball screw and a second slide rod are fixedly installed on the top of the circuit breaker, respectively, and the ball screw and the second slide rod are respectively arranged between the three circuit breaker insulating columns, and a fixing ring is arranged directly above the three circuit breaker insulating columns, and the bottom ends of the three fixing rings are rotatably installed with active gear rings, and connecting plates are fixedly connected between the three fixing rings, and the bottom ends of the two connecting plates are rotatably connected with transmission gear rings, and the two transmission gear rings are meshed with the three active gear rings, one of the transmission gear rings is threadedly connected to the ball screw, and the other transmission gear ring is rotatably connected to the second slide rod, and the two connecting plates are respectively slidably connected to the second slide rod and the ball screw, and lifting mechanisms for driving the fixing rings to rise and fall are arranged on both sides of the three fixing rings, and the inner walls of the three active gear rings are arranged with cleaning bristles, and a dustproof component is arranged on the top of the circuit breaker base.

[0008] As a further description of the above technical solution: the lifting mechanism includes a screw, a first sliding rod, two fixed plates and two lifting plates, the two fixed plates are respectively fixedly mounted on both sides of the circuit breaker base, the screw is rotatably mounted on the top of the fixed plate, the first sliding rod is fixedly mounted on the top of the other fixed plate, one of the lifting plates is threadedly connected to the screw, the other lifting plate is slidably connected to the first sliding rod, the two lifting plates are respectively fixedly connected to the fixing rings at both ends, a motor is fixedly mounted on the bottom end of one of the fixed plates, the output end of the motor is transmission connected to the screw, and the top ends of the screw and the first sliding rod are fixed according to the limit plate.

[0009] As a further description of the above technical solution: a first bearing is transmission-connected between the fixed ring and the active gear ring, and a second bearing is transmission-connected between the connecting plate and the transmission gear ring.

[0010] As a further description of the above technical solution: the dustproof assembly includes two protective plates, and the two protective plates are respectively fixedly installed on both sides of three circuit breaker insulating columns, and dustproof nets are arranged on the protective plates.

[0011] As a further description of the above technical solution: the side walls of the two connecting plates are fixedly installed with connecting frames, and cleaning plates are arranged directly above the two dustproof nets. The two cleaning plates are fixedly connected to multiple connecting frames respectively, and the side walls of the cleaning plates are provided with brush layers.

[0012] As a further description of the above technical solution: a mounting plate is fixedly mounted on the bottom end of the circuit breaker base, mounting holes are opened on both sides of the mounting plate, and a plurality of reinforcement plates are fixedly connected between the circuit breaker base and the mounting plate.

[0013] The utility model provides a primary and secondary fusion column-mounted circuit breaker based on traveling wave ranging. It has the following beneficial effects: the dustproof components on both sides can perform preliminary dustproof on the device. When the circuit breaker insulating column needs to be cleaned, the upper fixed ring is moved downward by using a lifting mechanism. When the transmission gear ring slides on the ball screw, it can rotate. When a transmission gear ring rotates, it can drive multiple active gear rings to rotate. During the rotation of multiple active gear rings, the cleaning brushes on the inner walls of multiple active gear rings can clean the circuit breaker insulating column, realizing cleaning from top to bottom and rotating without dead angles.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a primary-secondary fusion column-mounted circuit breaker based on traveling wave ranging proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after removing the protective plate and the dustproof net;

[0018] Figure 3 It is a schematic diagram of the ball screw, driving gear and transmission gear of the utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of a cleaning plate of the utility model provided with a brush layer.

[0021] Legend:

[0022] 1. Mounting plate; 2. Circuit breaker base; 3. Reinforcement plate; 4. Mounting hole; 5. Circuit breaker insulation column; 6. Fixed plate; 7. Screw; 8. First slide bar; 9. Motor; 10. Limiting plate; 11. Lifting plate; 12. Connecting plate; 13. Fixed ring; 14. First bearing; 15. Active gear ring; 16. Cleaning brush; 17. Second bearing; 18. Transmission gear ring; 19. Ball screw; 20. Second slide bar; 21. Protective plate; 22. Dust net; 23. Connecting frame; 24. Cleaning plate; 25. Brush layer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5A primary-secondary fusion column-mounted circuit breaker based on traveling wave ranging, comprising a circuit breaker base 2 and three circuit breaker insulating columns 5 electrically mounted on the top of the circuit breaker base 2, wherein a ball screw and a second slide bar 20 are fixedly mounted on the top of the circuit breaker, respectively, and the ball screw and the second slide bar 20 are respectively arranged between the three circuit breaker insulating columns 5, and a fixing ring 13 is arranged directly above the three circuit breaker insulating columns 5, and an active gear ring 15 is rotatably mounted on the bottom ends of the three fixing rings 13, and a connecting plate 12 is fixedly connected between the three fixing rings 13, and a transmission gear ring 18 is rotatably connected to the bottom ends of the two connecting plates 12, and the two transmission gear rings 18 are meshed with the three active gear rings 15, one of the transmission gear rings 18 is threadedly connected to the ball screw, and the other transmission gear ring 18 is rotatably connected to the second slide bar 20, and the two connecting plates 12 are respectively slidable with the second slide bar 20 and the ball screw The three fixing rings 13 are connected, and a lifting mechanism for driving the fixing rings 13 to rise and fall is arranged on both sides of the three fixing rings 13, and the inner walls of the three active gear rings 15 are all provided with cleaning brushes 16, and a dustproof component is arranged on the top of the circuit breaker base 2; the circuit breaker base 2 and the circuit breaker insulating column 5 are both prior arts, and their function is to act as a circuit breaker on a primary and secondary fusion column in traveling wave ranging, so they are not described in detail. The dustproof components on both sides can perform preliminary dustproofing on the device. When the circuit breaker insulating column 5 needs to be cleaned, the upper fixing ring 13 is moved downward by a lifting mechanism, and when the transmission gear ring 18 slides on the ball screw, it can rotate. When a transmission gear ring 18 rotates, it can drive multiple active gear rings 15 to rotate. During the rotation of multiple active gear rings 15, the cleaning brushes on the inner walls of multiple active gear rings 15 can clean the circuit breaker insulating column 5, realizing cleaning from top to bottom and rotating without dead angles.

[0025] As a preferred technical solution of this embodiment, the lifting mechanism includes a screw 7, a first slide bar 8, two fixed plates 6 and two lifting plates 11, the two fixed plates 6 are respectively fixedly mounted on both sides of the circuit breaker base 2, the screw 7 is rotatably mounted on the top of the fixed plate 6, the first slide bar 8 is fixedly mounted on the top of the other fixed plate 6, one of the lifting plates 11 is threadedly connected to the screw 7, the other lifting plate 11 is slidably connected to the first slide bar 8, the two lifting plates 11 are respectively fixedly connected to the fixing rings 13 at both ends, a motor 9 is fixedly mounted on the bottom end of one of the fixed plates 6, the output end of the motor 9 is transmission-connected to the screw 7, the top ends of the screw 7 and the first slide bar 8 are both fixed according to the limiting plate 10; the rotation of the motor 9 can drive the screw 7 to rotate, and under the limiting action between the slide bar and the lifting plate 11, the lifting plate 11 can drive multiple fixing rings 13 to move up and down.

[0026] As a preferred technical solution of this embodiment, a first bearing 14 is transmission-connected between the fixed ring 13 and the active gear ring 15, and a second bearing 17 is transmission-connected between the connecting plate 12 and the transmission gear ring 18; both the first bearing 14 and the second bearing 17 can enable the active gear ring 15 and the transmission gear ring 18 to rotate stably, thereby increasing the stability of the device.

[0027] As a preferred technical solution of this embodiment, the dustproof component includes two protective plates 21, and the two protective plates 21 are respectively fixedly installed on both sides of the three circuit breaker insulating columns 5, and a dustproof net 22 is arranged on the protective plate 21; the protective plate 21 can increase the protection of the inside of the device, and the setting of the dustproof net 22 can increase the heat dissipation while preventing the device from dust.

[0028] As the preferred technical solution of this embodiment, the side walls of the two connecting plates 12 are fixedly installed with connecting frames 23, and cleaning plates 24 are arranged directly above the two dustproof nets 22. The two cleaning plates 24 are respectively fixedly connected to the multiple connecting frames 23, and the side walls of the cleaning plates 24 are provided with brush layers 25; when the multiple fixing rings 13 are lifted and lowered, the two cleaning plates 24 can also be lifted and lowered, and the brush layer 25 on the side wall can clean the dust on the dustproof net 22 to prevent excessive dust from affecting heat dissipation.

[0029] As a preferred technical solution of this embodiment, a mounting plate 1 is fixedly installed at the bottom end of the circuit breaker base 2, mounting holes 4 are opened on both sides of the mounting plate 1, and a plurality of reinforcement plates 3 are fixedly connected between the circuit breaker base 2 and the mounting plate 1; the device as a whole can be installed through the mounting plate 1, and the structural rigidity between the device and the mounting plate 1 can be increased through the reinforcement plate 3, thereby increasing the stability of the device.

[0030] The above description 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A primary-secondary fusion column-mounted circuit breaker based on traveling wave ranging, comprising a circuit breaker base (2) and three circuit breaker insulating columns (5) electrically mounted on the top of the circuit breaker base (2), characterized in that: A ball screw and a second slide bar (20) are fixedly mounted on the top of the circuit breaker, respectively. The ball screw and the second slide bar (20) are respectively arranged between three circuit breaker insulating columns (5). A fixing ring (13) is arranged directly above the three circuit breaker insulating columns (5). An active gear ring (15) is rotatably mounted on the bottom ends of the three fixing rings (13). A connecting plate (12) is fixedly connected between the three fixing rings (13). The bottom ends of the two connecting plates (12) are rotatably connected to a transmission gear ring (18). The two transmission gear rings (18) are rotatably connected to the bottom ends of the two connecting plates (12). 8) are meshed with three active gear rings (15), one of the transmission gear rings (18) is threadedly connected to the ball screw, the other transmission gear ring (18) is rotatably connected to the second slide bar (20), the two connecting plates (12) are slidably connected to the second slide bar (20) and the ball screw respectively, both sides of the three fixing rings (13) are provided with lifting mechanisms for driving the fixing rings (13) to rise and fall, the inner walls of the three active gear rings (15) are provided with cleaning bristles (16), and the top of the circuit breaker base (2) is provided with a dustproof component.

2. A primary-secondary fusion column mounted circuit breaker based on traveling wave ranging according to claim 1, characterized in that: The lifting mechanism comprises a screw (7), a first slide bar (8), two fixed plates (6) and two lifting plates (11), the two fixed plates (6) are respectively fixedly mounted on both sides of the circuit breaker base (2), the screw (7) is rotatably mounted on the top of the fixed plate (6), the first slide bar (8) is fixedly mounted on the top of the other fixed plate (6), one of the lifting plates (11) is threadedly connected to the screw (7), the other lifting plate (11) is slidably connected to the first slide bar (8), the two lifting plates (11) are respectively fixedly connected to the fixing rings (13) at both ends, a motor (9) is fixedly mounted on the bottom end of one of the fixed plates (6), the output end of the motor (9) is transmission-connected to the screw (7), and the top ends of the screw (7) and the first slide bar (8) are both fixedly mounted according to the limit plate (10).

3. The primary and secondary fusion column mounted circuit breaker based on traveling wave ranging according to claim 1 is characterized in that: A first bearing (14) is transmission-connected between the fixed ring (13) and the active gear ring (15), and a second bearing (17) is transmission-connected between the connecting plate (12) and the transmission gear ring (18).

4. The primary and secondary fusion column mounted circuit breaker based on traveling wave ranging according to claim 1 is characterized in that: The dustproof assembly comprises two protective plates (21), the two protective plates (21) are respectively fixedly mounted on two sides of three circuit breaker insulating columns (5), and a dustproof net (22) is arranged on the protective plates (21).

5. A primary-secondary fusion column mounted circuit breaker based on traveling wave ranging according to claim 4, characterized in that: The side walls of the two connecting plates (12) are fixedly mounted with connecting frames (23), and cleaning plates (24) are arranged directly above the two dustproof nets (22). The two cleaning plates (24) are respectively fixedly connected to the plurality of connecting frames (23), and the side walls of the cleaning plates (24) are provided with brush layers (25).

6. The primary and secondary fusion column mounted circuit breaker based on traveling wave ranging according to claim 1 is characterized in that: A mounting plate (1) is fixedly mounted on the bottom end of the circuit breaker base (2), mounting holes (4) are provided on both sides of the mounting plate (1), and a plurality of reinforcement plates (3) are fixedly connected between the circuit breaker base (2) and the mounting plate (1).

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