Adjustable 10KV nuclear phase auxiliary device
By designing an adjustable 10kV phase comparison auxiliary device, which employs a telescopic rod and fixed pulley structure, the safety and convenience issues of phase comparison operation in high-voltage power systems have been solved, achieving stable fixation and efficient operation in different environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-17
AI Technical Summary
In high-voltage power systems, the phase verification operation of existing 10KV switchgear has safety hazards and operational difficulties. In particular, the excessive depth of the switchgear results in insufficient safety distance for workers, and existing tools are prone to slipping and are unstable, affecting operational efficiency.
Design an adjustable 10kV phase comparison auxiliary device, which uses telescopic rods, fixed pulleys and high-voltage insulation materials. Through width adjustment and a stable support structure, it ensures the stable fixation and safe operation of the phase comparator in different environments.
It improves the safety and convenience of nuclear phase operation, adapts to different working environments, ensures efficient operation of operators in complex scenarios, and meets the adaptability requirements of 10kV high-voltage switchgear.
Smart Images
Figure CN224006402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to auxiliary tools for power equipment maintenance, specifically an adjustable 10KV phase comparison auxiliary device. Background Technology
[0002] Currently, most of the 10KV switchgear used by the company is fully sealed equipment. When performing phase verification on the lines via the switchgear, since the switchgear is fully sealed and no live parts are exposed, workers need to press down the break-point baffle inside the switchgear to expose the break-point contacts before the phase verification can be performed. Currently, there are three methods to open the baffle: First, directly touch the mechanism by hand. Since the switchgear is more than 1 meter deep, it is necessary to lean into the cabinet to open it. At this time, the safe distance between the worker and the live parts is only 45cm, which does not meet the requirement of less than 70cm and is considered a violation of regulations. Second, use an insulated rod. It is easy for the worker to get tired after holding the baffle for a long time. If the insulated tool is not stable, it may fall off and damage the equipment inside the cabinet. Third, some baffle mechanisms are distributed on both sides of the cabinet, requiring two people to trigger them at the same time, which increases the number of workers. The contacts are wheel-shaped devices, which are easy to slip when touched on one side, causing them to fall off. In order to solve the safety hazards and operational efficiency problems in operation and maintenance, this device is designed. Utility Model Content
[0003] The purpose of this invention is to provide an adjustable 10kV phase comparison auxiliary device to solve problems such as unstable support, difficult operation, and inconvenient equipment adjustment during phase comparison operations in high-voltage power systems. Through flexible width adjustment, stable support structure, and high-voltage insulation design, the safety and ease of operation of the phase comparison instrument are improved. This tool can adapt to different working environments, ensuring that operators can perform efficient and safe phase comparison operations in complex scenarios.
[0004] To achieve the above objectives, this utility model provides an adjustable 10kV phase matching auxiliary device, comprising two side plates, with openings and operating handles on the upper and lower sides of the two side plates respectively. The left side plate has telescopic rod fixing bases on the upper and lower sides, and two telescopic rods are arranged parallel between the two side plates. One side of the telescopic rod is installed on the telescopic rod fixing base of the left side plate, and the other side of the telescopic rod has a telescopic rod adjustment part that connects to the right side plate. Two fixed pulleys are provided on the outer side of the right side plate, and the two fixed pulleys move along the slide rails provided inside the 10kV switch cabinet. The two fixed pulleys and the side plate are connected by fastening screws.
[0005] Furthermore, the top of the opening transitions from a rounded surface to a vertical surface inside the opening, and the opening as a whole is groove-shaped.
[0006] Furthermore, the opening height is 155mm and the width is 80mm.
[0007] The adjustable 10kV phase comparison auxiliary device adopts high-voltage insulation materials and protective design to effectively avoid electrical accidents and ensure the safety of operators. In terms of operating efficiency, the tool width is adjustable, and the fixed pulley and slide rail clamping function makes the adjustment of the phase comparison auxiliary device more convenient and improves the work efficiency. It is highly adaptable and can be flexibly adjusted in different working environments and complex conditions, and is suitable for various models of 10kV high-voltage switchgear. Attached Figure Description
[0008] Figure 1 This is a top view of the present invention;
[0009] Figure 2 This is a schematic diagram of the structure of the side plate of this utility model after it has been unfolded.
[0010] Figure 3 This is a schematic diagram illustrating the working principle of a switchgear equipped with a ZN28-12 circuit breaker.
[0011] Figure 4 This is a schematic diagram illustrating the working principle of a switch cabinet equipped with a VS1-12 circuit breaker.
[0012] In the diagram: 1. Side plate, 2. Left VS1 handcart opening, 3. Right VS1 handcart opening, 4. Fixed shaft, 5. Fixed pulley, 6. Telescopic rod, 7. Telescopic rod fixed base, 8. Operating handle, 9. Telescopic tube adjustment part, 10. Fixed shaft, 11. Linkage mechanism pressure plate, 12. Linkage mechanism, 13. Static contact insulation baffle. Detailed Implementation
[0013] Reference Figure 1 and Figure 2 The telescopic rod 6 is fixed on the side plate 1 and has an adjustable width ranging from 62cm to 66cm. The adjustment mechanism of the telescopic rod 6 is a locking type, which ensures that the position is stable after adjustment and is not easy to slide. The phase comparator can be placed on the telescopic rod 6 and ensures the efficient positioning of the phase comparator on various power equipment.
[0014] The fixed pulley 5 is made of wear-resistant and high-strength material. The fixed pulley 5 is connected to the side plate 1 by fastening screws, which makes the sliding smooth and stable. The pulley system fixes the phase comparator auxiliary device by clamping the slide rail, ensuring the accurate position of the equipment.
[0015] The insulating side plate 1 is made of high-strength insulating material that meets the 10kV voltage standard, providing effective electrical isolation protection. The side plate 1 is designed to be detachable for easy maintenance, cleaning and storage. The side plate 1 is also designed with anti-slip features to further ensure the stability of the phase-matching equipment during operation.
[0016] The operating handle 8 is designed directly on the side plate 1, which reduces the cost of the device. The side plate 1 is made of non-slip material to ensure the stability of the operator in a high-pressure environment. The operating handle 8 can change its width with the telescopic rod 6 to adapt to different working postures and environments.
[0017] The upper side of the side plate 1 is provided with a left VS1 truck opening 2 and a right VS1 truck opening 3, which can be applied to the pressure plate 11 of the linkage mechanism when the switch cabinet is equipped with a VS1-12 circuit breaker.
[0018] Reference Figure 3 This utility model provides an embodiment, which mainly focuses on the working process and principle of the phase comparator auxiliary device under the ZN28-12 circuit breaker condition: under the ZN28-12 circuit breaker condition, the linkage mechanism pressure plate 11 is fixed on the outer side of the switch cabinet, the linkage mechanism pressure plate 11 has a certain angle, and the two fixed pulleys 5 clamp the linkage mechanism pressure plate 11 during the movement, so that the angle continuously decreases.
[0019] This device is mainly used to control the opening and closing of the stationary contact insulation baffle 13 to achieve safe isolation and protection of high-voltage equipment. The entire operation process is completed by the cooperation of key components such as the fixed shaft 4, fixed pulley 5, linkage mechanism pressure plate 11, linkage mechanism 12 and stationary contact insulation baffle 13. Its working process can be divided into four parts: initial state, start-up stage, transmission process and final state.
[0020] The fixed pulley 5 provides motion guidance, enabling the linkage mechanism 12 to move along a specific trajectory, while reducing friction and improving transmission efficiency.
[0021] The fixed shaft 4 serves as a fulcrum, providing stable support and making the movement trajectory of the entire mechanism controllable, thus preventing structural swaying or deviation.
[0022] The linkage mechanism pressure plate 11 serves as a force-bearing point. After being subjected to the force of the nuclear phase auxiliary device, it begins to move and drives the entire linkage mechanism 12.
[0023] The linkage mechanism 12 converts the external force applied to the linkage mechanism pressure plate 11 into a suitable motion form, which ultimately acts on the stationary contact insulating baffle 13.
[0024] The static contact insulating baffle 13 is opened or closed under the action of the linkage mechanism 12 to ensure the isolation or connection of electrical equipment.
[0025] In the initial static state, the stationary contact insulation baffle 13 is in the closed position, completely blocking the stationary contact and providing insulation protection. The linkage mechanism pressure plate 11 is in the initial position and is not subjected to any external force.
[0026] During the startup phase, under the action of external force, the operator applies external force to the phase grading auxiliary device. At this time, the fixed pulley 5 plays a guiding role, making the device move along the set trajectory to avoid deviation or jamming. After the operator pushes the operating handle 8 a certain distance, the fixed pulley 5 of the phase grading auxiliary device acts on the linkage mechanism pressure plate 11. When the upper fixed pulley 5 moves, it presses the linkage mechanism pressure plate 11 downward. At this time, the linkage mechanism pressure plate 11 is at its maximum opening angle, causing it to displace. Since the linkage mechanism pressure plate 11 is connected to the linkage mechanism 12, the movement of the linkage mechanism pressure plate 11 directly drives the linkage mechanism 12 to displace accordingly. The linkage mechanism 12 acts on the stationary contact insulation baffle 13. Since one end of the linkage mechanism 12 is connected to the stationary contact insulation baffle 13, when the linkage mechanism 12 displaces, it will transmit the movement to the stationary contact insulation baffle 13 through the mechanical transmission system.
[0027] The force transmission path of the entire working process is: linkage mechanism pressure plate 11 → linkage mechanism 12 → stationary contact insulation baffle 13. During this process, the fixed pulley 5 further guides the direction of movement, so that the stationary contact insulation baffle 13 opens smoothly according to the predetermined trajectory.
[0028] The fixed shaft 4 serves as a fulcrum, preventing unnecessary shaking or deviation during the entire movement process and improving the reliability of the mechanism. Its function is similar to that of a lever fulcrum, ensuring that the stationary contact insulation baffle 13 opens according to the designed angle and direction after being subjected to force. The stationary contact insulation baffle 13 gradually opens along the set trajectory until it reaches an opening distance of 150mm. This distance ensures sufficient operating space, allowing the stationary contact to be completely exposed, while avoiding damage or unnecessary movement resistance caused by over-opening. After the insulation baffle reaches the maximum opening position (150mm), it stops moving. At this point, the stationary contact is exposed, allowing phase integration operations to be performed.
[0029] Due to the action of the fixed shaft 4 and the fixed pulley 5, the entire mechanism remains in a stable open state and will not rebound due to inertia or reaction force. If the mechanism is equipped with a limit device, the stationary contact insulating baffle 13 will be fixed in the open position by the mechanical limit device to prevent accidental closure.
[0030] The interaction analysis between components is as follows:
[0031]
[0032] The mechanism operates through a process of external force drive → mechanical linkage → motion transmission → baffle opening. Throughout this process:
[0033] When the pressure plate 11 of the linkage mechanism is subjected to external force, it moves, which in turn drives the linkage mechanism 12 to move.
[0034] The movement of the linkage mechanism 12 is guided by the fixed pulley 5 and acts on the stationary contact insulation baffle 13, pushing the stationary contact insulation baffle 13 to move according to the preset trajectory.
[0035] Fixed axis 5 provides stability and prevents deviation or jitter during movement.
[0036] When the stationary contact insulating baffle 13 is opened to 150mm, the mechanism enters a stable state, ensuring safe and reliable operation.
[0037] The design of the entire system ensures the reliable opening and closing of the stationary contact insulation baffle 13, which is suitable for the isolation and protection of high-voltage equipment and ensures the safe operation of the electrical system.
[0038] Reference Figure 4 This utility model provides another embodiment under a specific working condition, which is the working process when a VS1-12 circuit breaker is installed in the switch cabinet. The linkage mechanism pressure plate 11 is located on the inner side of the switch cabinet and has a scissor lever structure. The left VS1 handcart opening 2 and the right VS1 handcart opening 3 of this phase comparator auxiliary device act on one side of the linkage mechanism pressure plate 11, and the other side of the linkage mechanism pressure plate 11 is connected to the linkage mechanism 12. As the fixed pulley 5 moves, the linkage mechanism pressure plate 11 transitions into the opening with the top arc of the left VS1 handcart opening 2 and the right VS1 handcart opening 3. The angle of the linkage mechanism pressure plate 11 decreases, which drives the linkage mechanism to open the static contact insulation baffle. Finally, it stabilizes in the groove in the opening to achieve angle limitation. The specific working process is the same as the first embodiment, which is clear to those skilled in the art and will not be described in detail here.
[0039] This phase comparator auxiliary device can be applied to two types of general-purpose circuit breakers in switchgear: the VS1-12 circuit breaker and the ZN28-12 circuit breaker. In the ZN28-12 circuit breaker operation, the two fixed pulleys 5 of this auxiliary device are used to press down the angle of the linkage mechanism pressure plate 11, thereby opening the stationary contact insulation baffle 13. In the VS1-12 circuit breaker operation, the left and right VS1 trolley openings drive the linkage mechanism 12 to open the stationary contact insulation baffle 13 (see reference). Figure 3 )
[0040] This utility model relates to an adjustable 10kV phase comparison auxiliary device, which mainly solves the problems of stability, convenience and safety in phase comparison operation in power systems. It supports the phase comparison instrument to work in high-voltage cabinets of different widths. The fixed pulley 5 can firmly fix the phase comparison instrument auxiliary device on the slide, ensuring the stability of the equipment and preventing it from shaking. The side plate 1 is equipped with an anti-slip design to increase the stability of the equipment. In addition, the device is made of insulating materials, which meets the safety requirements of 10kV high-voltage power environment. This utility model is applicable to substations, power inspection and equipment maintenance and other places, and can improve the safety, efficiency and operational flexibility of phase comparison operation.
[0041] The technical solution of this utility model includes three core designs: the telescopic rod 6, with its height and width adjustment function, adapts to the needs of different equipment and working environments; the fixed pulley 5 ensures the phase comparator is stably fixed during use, preventing shaking and improving operational accuracy; the insulating side plate 1 uses high-voltage insulating material to effectively isolate the high voltage of electrical equipment and ensure the safety of operators. The combination of these three features ensures the tool's advantages in stability, safety, and ease of operation.
Claims
1. An adjustable 10 kV phase checking aid, characterized in that, The two side plates are provided with openings and operation handles on the upper and lower sides respectively, the upper and lower sides of the left side plate are provided with telescopic rod fixing bases, two telescopic rods are arranged in parallel between the two side plates, one side of the telescopic rod is fixed to the telescopic rod fixing base of the left side plate, the other side of the telescopic rod is provided with a telescopic rod adjusting part and is connected with the right side plate, two fixed pulleys are arranged on the outer side of the right side plate, the two fixed pulleys move along the slide arranged in the 10KV switch cabinet, and the two fixed pulleys and the side plate are connected through fastening screws.
2. An adjustable 10 kV phase checking auxiliary device according to claim 1, characterized in that, The opening top end is connected to the vertical surface in the opening through a circular arc surface, and the opening as a whole is in a groove shape.
3. An adjustable 10 kV phase checking auxiliary device according to claim 1, characterized in that, The opening height is 155mm, and the width is 80mm.