A field pole-mounted circuit breaker test platform
Through the solid liquid phase change technology and lifting mechanism of the phase change material chassis, the stability problem of equipment debugging on electric poles on complex terrain in the field is solved, efficient debugging and maintenance of circuit breakers on the column is realized, and operation convenience and efficiency are improved.
Patent Information
- Application Number
- CN202210392188.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-04-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2042-04-14
AI Technical Summary
The prior art cannot complete complex secondary equipment debugging operations on electric poles with harsh terrain in the field, especially the test and maintenance of circuit breakers on columns, making it difficult to achieve stable operations on uneven grounds.
The solid liquid phase change technology of phase change material is adopted to liquefy the chassis of the phase change material through temperature control and fit the ground to achieve stable support of the chassis. It is equipped with a lifting mechanism and passive switch tripping characteristic testing device to simplify the debugging of power equipment and Maintenance process.
It improves the convenience and efficiency of operation under complex terrain conditions, ensures stable support on the pole and efficient equipment debugging, and reduces labor and cost requirements.
Smart Images
Figure CN114859220B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of electric power operation equipment, and in particular to a field pole-mounted circuit breaker test platform. Background Art
[0002] With the improvement of the technical content of the power grid, there are more and more intelligent devices on poles. The debugging of intelligent devices requires more instruments and professionals. For example, pole-mounted circuit breakers are also a kind of highly integrated power equipment. They integrate primary and secondary equipment such as analog quantity acquisition, relay protection, and circuit breaker arc extinguishing mechanism. Therefore, there are many new requirements for the testing of pole-mounted circuit breakers. Because the pole-mounted circuit breakers are scattered on the distribution network branch poles, once they encounter complex terrain in the field, such as poles in paddy fields and valleys, the testing and maintenance of intelligent devices such as pole-mounted circuit breakers are very inconvenient. Unlike the simple and extensive equipment on poles in the past, they can be tested or repaired only by carrying metal working tools such as wrenches. This is mainly because the testing of pole-mounted circuit breakers requires complex power secondary professional technology and equipment. This type of technology is difficult to complete on poles in harsh terrain in the field. There is an urgent need for a construction platform that can complete the debugging of complex secondary equipment on poles in harsh terrain in the field. Summary of the invention
[0003] In view of the problem that the existing technology is unable to complete complex secondary equipment debugging operations on electric poles in harsh outdoor terrain, the present invention provides a field pole-mounted circuit breaker test platform, which relies on the solid-liquid phase change of phase change materials to achieve self-adaptation to complex outdoor terrain conditions, realizes the convenience of working on electric poles under complex terrain conditions, and greatly improves the efficiency of debugging and repairing complex intelligent equipment such as pole-mounted circuit breakers.
[0004] The following is the technical solution of the present invention.
[0005] A field pole-mounted circuit breaker test platform comprises a phase change material chassis, a lifting mechanism, a working platform and a passive switch tripping characteristic test device. The phase change material chassis is connected to the working platform via the lifting mechanism. The phase change material chassis controls the solid-liquid phase change of the phase change material by temperature so as to fit the working ground. The passive switch tripping characteristic test device is arranged above the working platform.
[0006] The present invention uses a phase change material chassis, liquefies the phase change material by heating, and solidifies it after adapting to the terrain. This allows the chassis to be fixed to the ground to prevent the center of gravity of the entire platform from being unstable or tilted and overturned, thereby facilitating operations on electric poles under complex terrain conditions and greatly improving the efficiency of debugging and repairing complex intelligent equipment such as pole-mounted circuit breakers.
[0007] Preferably, the phase change material chassis comprises: a lifting vehicle chassis, a support bag, a mucus pump, a liquid storage tank heater, a support bag heater and a liquid storage tank. The support bag is arranged at the lower part of the lifting vehicle chassis. The support bag is made of heat-resistant soft silicone rubber and its volume is equal to that of the liquid storage tank. The liquid storage tank is arranged at the upper part of the lifting vehicle chassis. The support bag and the liquid storage tank are connected by a pipeline. A mucus pump is arranged in the middle of the pipeline. The liquid storage tank is provided with the liquid storage tank heater. The support bag is provided with a support bag heater. Phase change material is perfused into the liquid storage tank and the support bag. The volume of the phase change material is the same as that of the liquid storage tank or the support bag.
[0008] The present invention relies on the solid-liquid phase change of phase change materials to achieve self-adaptation to complex terrain conditions in the wild. In the field, on uneven ground such as hillsides and fields, existing lifting or lifting equipment cannot be safely supported on the ground. The present invention melts the phase change material heater through heating, and injects the mucus pump into the support capsule. The support capsule expands and clings to the ground. As the phase change material cools and solidifies, the bottom surface of the support capsule forms a fitting surface that clings to the bottom surface and is completely the same shape as the uneven field bottom surface. In this way, the lifting platform can achieve a firm support effect on the ground. When the construction is completed, it is only necessary to heat the phase change material in the heater of the support capsule. After the phase change material melts into liquid, it is pumped back to the liquid storage tank through the mucus pump, and the support capsule shrinks off the ground, so that the lifting platform can be conveniently towed or pushed away from the work site. The present invention realizes the convenience of working on the pole under complex terrain conditions through the use of phase change materials, and the efficiency of debugging and repairing complex intelligent equipment such as pole-mounted circuit breakers can be greatly improved.
[0009] Preferably, the phase change material chassis further comprises wheels, and the wheels are arranged at the lower part of the lifting vehicle chassis.
[0010] Preferably, the lifting mechanism is a folding telescopic bracket, the folding telescopic bracket is arranged on the upper part of the lifting vehicle chassis, and the working platform is arranged on the upper part of the folding telescopic bracket.
[0011] Preferably, the phase change material is paraffin, and the phase change temperature is 80°C.
[0012] Preferably, the passive switch tripping characteristic test device includes a clamp transformer, an ammeter, a voltage test button, a current test button, a current regulating potentiometer, a voltage aerial plug interface, a current aerial plug interface, a voltage pin selection switch, a current pin selection switch and a step-up transformer. The secondary winding of the clamp transformer is divided into two paths, one path is connected to the primary side of the step-up transformer, and the other path is connected in series with the ammeter and the current test button, and then connected in parallel with the current regulating potentiometer, and then connected to one end of the current pin selection switch, and the other end of the current pin selection switch is connected to the current aerial plug interface. The secondary side of the step-up transformer is connected in series with the voltage test button, and then connected to one end of the voltage pin selection switch, and the other end of the voltage pin selection switch is connected to the voltage aerial plug interface.
[0013] When in use, the tester can select the pins of the analog aviation plug of the tested circuit breaker as the pins of the corresponding current and voltage signal channels through the aviation plug docking socket, and directly change the current signal on the primary side into the current required for the test through the open transformer, as well as the AC voltage signal formed after the boost, and apply it to the tested circuit breaker. By pressing the voltage power-off button and the current injection button, a simple method is used to simulate power outages and short-circuit overcurrent faults in the power grid, thereby testing the operating performance of the circuit breaker.
[0014] Many electric poles in harsh terrains such as paddy fields, hillsides or ponds cannot be lifted up by boom trucks, so the operation of intelligent equipment such as pole-mounted circuit breakers often requires the use of manual hoists to achieve a certain degree of electric pole climbing operations. However, manual hoists are time-consuming and labor-intensive, and have extremely low production efficiency. The present invention utilizes a special structure and an on-pole working platform that does not require a manual hoist climbing platform, which greatly improves the inefficiency and inconvenience of high-altitude operations on electric poles in fields and ponds.
[0015] The substantial effects of the present invention include: relying on the solid-liquid phase change of phase change materials to achieve self-adaptation to complex terrain conditions in the field, so as to prevent the center of gravity of the entire platform from being unstable or tilted and overturned, realizing the convenience of working on electric poles under complex terrain conditions, and greatly improving the efficiency of debugging and repairing complex intelligent equipment such as pole-mounted circuit breakers. It has the characteristics of easy operation, applicability to operations in harsh terrains in the field, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a structural diagram of an embodiment of the present invention;
[0017] Figure 2 1 is a circuit diagram of a passive switch tripping characteristic testing device according to an embodiment of the present invention;
[0018] The figure includes: lift chassis-1, wheels-2, folding telescopic bracket-3, working platform-4, support bag-5, mucus pump-6, liquid storage tank heater-7, support bag heater-8, liquid storage tank-9, passive switch tripping characteristic test device-12, clamp transformer-13, ammeter-14, voltage test button-15, current test button-16, current adjustment potentiometer-17, voltage aviation plug interface-18, current aviation plug interface-19, voltage pin selection switch-21, current pin selection switch-22, step-up transformer-20. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution will be clearly and completely described below in combination with the embodiments. Obviously, the described embodiments are only 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.
[0020] It should be understood that in various embodiments of the present invention, the size of the sequence number of each process does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
[0021] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.
[0022] It should be understood that in the present invention, "plurality" refers to two or more than two. "And / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains A, B and C", "Contains A, B, C" means that A, B, and C are all included, "Contains A, B or C" means that one of A, B, and C is included, and "Contains A, B and / or C" means that any one, any two, or any three of A, B, and C are included.
[0023] The technical solution of the present invention is described in detail with specific embodiments below. The embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
[0024] Example:
[0025] A field pole-mounted circuit breaker test platform, such as Figure 1 As shown, it includes a lifting vehicle chassis 1, wheels 2, a folding telescopic bracket 3, a working platform 4, a supporting capsule 5, a mucus pump 6, a liquid storage tank heater 7, a supporting capsule heater 8, a liquid storage tank 9, a passive switch tripping characteristic test device 12, a clamp-on transformer 13, an ammeter 14, a voltage test button 15, a current test button 16, a current regulating potentiometer 17, a voltage aviation plug interface 18, and a current aviation plug interface 19.
[0026] Among them, four wheels 2 are installed at the lower part of the lifting vehicle chassis 1, the folding telescopic bracket 3 is arranged on the upper part of the lifting vehicle chassis 1, the working platform 4 is arranged on the upper part of the folding telescopic bracket 3, and the support bag 5 is arranged in the middle position of the lower part of the lifting vehicle chassis 1. The support bag 5 is made of heat-resistant soft silicone rubber, and its volume is equal to that of the liquid storage tank 9. The liquid storage tank 9 is arranged in the middle position of the upper part of the lifting vehicle chassis 1. The support bag 5 is connected to the liquid storage tank through a pipeline, and a mucus pump 6 is arranged in the middle of the pipeline. A liquid storage tank heater 7 is arranged inside the liquid storage tank 9, and a support bag heater 8 is arranged inside the support bag 5. Phase change material is perfused inside the liquid storage tank 9 and the support bag 5. The volume of the phase change material is the same as that of the liquid storage tank 9 or the support bag 5. The phase change material is paraffin, and the phase change temperature is 80°C.
[0027] This embodiment utilizes phase change material, and relies on the solid-liquid phase change of phase change material to achieve self-adaptation to complex terrain conditions in the wild. In the field, on uneven ground such as hillsides and fields, existing lifting or lifting equipment cannot be safely supported on the ground. The present invention melts the phase change material heater by heating, and injects the mucus pump into the support capsule, and the support capsule expands and clings to the ground. As the phase change material cools and solidifies, the bottom surface of the support capsule forms a close-fitting bottom surface, and the shape is exactly the same as the uneven field bottom surface. In this way, the lifting platform can achieve a firm support effect on the ground. When the construction is completed, it is only necessary to heat the phase change material in the heater of the support capsule. After the phase change material melts into liquid, it is pumped back to the liquid storage tank through the mucus pump, and the support capsule shrinks off the ground, so that the lifting platform can be conveniently towed or pushed away from the work site. The present invention realizes the convenience of working on the pole under complex terrain conditions through the use of phase change material, and the efficiency of debugging and repairing complex intelligent equipment such as pole-mounted circuit breakers can be greatly improved.
[0028] The working platform 4 of this embodiment is provided with a passive switch tripping characteristic testing device 12, such as Figure 2As shown, the passive switch tripping characteristic test device 12 includes a clamp transformer 13, an ammeter 14, a voltage test button 15, a current test button 16, a current regulating potentiometer 17, a voltage air plug interface 18, a current air plug interface 19, a voltage pin selection switch 21, a current pin selection switch 22, and a step-up transformer 20. The secondary winding of the clamp transformer 13 is divided into two paths, one of which is connected to the primary side of the step-up transformer 20, and the other is connected in series with the ammeter 14 and the current test button 16, and then connected in parallel with the current regulating potentiometer 17, and then connected to one end of the current pin selection switch 22, and the other end of the current pin selection switch 22 is connected to the current air plug interface 19. The secondary side of the step-up transformer 20 is connected in series with the voltage test button 15, and then connected to one end of the voltage pin selection switch 21, and the other end of the voltage pin selection switch 21 is connected to the voltage air plug interface 18.
[0029] Figure 2 It is a circuit diagram of a passive switch tripping characteristic test device according to an embodiment of the present invention. When in use, the tester can select the pins of the analog aviation plug of the tested circuit breaker as the pins of the corresponding current and voltage signal channels through the aviation plug docking socket, and directly change the current signal of the primary side into the current required for the test and the AC voltage signal formed after the boost through the open transformer, and apply them to the tested circuit breaker. By pressing the voltage power-off button and the current injection button, a simple method is used to simulate power failure of the power grid and short-circuit overcurrent faults, thereby testing the action performance of the circuit breaker.
[0030] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the specific device can be divided into different functional modules to complete all or part of the functions described above.
[0031] In the embodiments provided in the present application, it should be understood that the disclosed structure can be implemented in other ways. For example, the embodiments of the structure described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another structure, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, structures or units, which can be electrical, mechanical or other forms.
[0032] The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.
[0033] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A field pole-mounted circuit breaker test platform, characterized in that: It comprises a phase change material chassis, a lifting mechanism, a working platform (4) and a passive switch tripping characteristic testing device (12), wherein the phase change material chassis is connected to the working platform (4) via the lifting mechanism, the phase change material chassis controls the solid-liquid phase change of the phase change material by temperature so as to fit the working ground, and the passive switch tripping characteristic testing device (12) is arranged above the working platform (4); The phase change material chassis comprises: a lifting vehicle chassis (1), a support capsule (5), a mucus pump (6), a liquid storage tank heater (7), a support capsule heater (8) and a liquid storage tank (9). The support capsule (5) is arranged at the lower part of the lifting vehicle chassis (1). The support capsule (5) is made of heat-resistant soft silicone rubber and has a volume equal to that of the liquid storage tank (9). The liquid storage tank (9) is arranged at the upper part of the lifting vehicle chassis (1). The support capsule (5) and the liquid storage tank are connected by a pipeline. The mucus pump (6) is arranged in the middle of the pipeline. The liquid storage tank (9) is provided with the liquid storage tank heater (7). The support capsule (5) is provided with the support capsule heater (8). The liquid storage tank (9) and the support capsule (5) are filled with phase change material. The volume of the phase change material is the same as that of the liquid storage tank (9) or the support capsule (5).
2. A field pole-mounted circuit breaker test platform according to claim 1, characterized in that: The phase change material chassis also includes wheels (2), and the wheels (2) are arranged at the lower part of the lifting vehicle chassis (1).
3. A field pole-mounted circuit breaker test platform according to claim 1, characterized in that: The lifting mechanism is a folding telescopic bracket (3), the folding telescopic bracket (3) is arranged on the upper part of the lifting vehicle chassis (1), and the working platform (4) is arranged on the upper part of the folding telescopic bracket (3).
4. A field pole-mounted circuit breaker test platform according to claim 1, characterized in that: The phase change material is paraffin, and the phase change temperature is 80°C.
5. The field pole-mounted circuit breaker test platform according to claim 1, characterized in that: The passive switch tripping characteristic test device (12) comprises a clamp-on transformer (13), an ammeter (14), a voltage test button (15), a current test button (16), a current regulating potentiometer (17), a voltage plug-in interface (18), a current plug-in interface (19), a voltage pin selection switch (21), a current pin selection switch (22) and a step-up transformer (20), wherein the secondary winding of the clamp-on transformer (13) is divided into two paths, one of which is connected to the primary side of the step-up transformer (20) and the other is connected to the current After the meter (14) and the current test button (16) are connected in series, they are connected in parallel with the current regulating potentiometer (17), and then connected to one end of the current pin selection switch (22), and the other end of the current pin selection switch (22) is connected to the current plug-in interface (19). After the secondary side of the step-up transformer (20) is connected in series with the voltage test button (15), it is connected to one end of the voltage pin selection switch (21), and the other end of the voltage pin selection switch (21) is connected to the voltage plug-in interface (18).