Automatic testing device for one-key sequential control function of transformer substation
By designing the support mechanism and circuit breaker fixing mechanism, and combining spring linkage and threaded rod adjustment, the automatic testing device for one-button sequential control function in substations was able to achieve stable clamping and rapid testing, solving the problem of cumbersome operation in existing technologies and improving testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU SHUNWEI SURVEY & DESIGN CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-04-21
AI Technical Summary
The existing automatic testing device for one-button sequential control function in substations is cumbersome to operate, relies on manual rotation of the bidirectional lead screw, and is inefficient and prone to fatigue.
It adopts a detection support mechanism, a circuit breaker fixing mechanism, and a detection head mounting mechanism. One-click clamping is achieved by pushing the handle and linking it with the spring. Combined with the adjustment nut driving the long threaded rod for fine adjustment, it can adapt to different circuit breaker widths. One-click clamping and detection head replacement are achieved through mechanical transmission.
It achieves stable clamping and rapid testing of circuit breakers, simplifies the operation process, improves testing efficiency, reduces the complexity of manual operation, and facilitates automated on-site testing.
Smart Images

Figure CN224152587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary testing technology for power systems, specifically an automatic testing device for one-button sequential control function of a substation. Background Technology
[0002] The "one-click sequential control" system for substations integrates numerous and cumbersome manual switching operations into a dedicated backend computer. By simply clicking on the desired "operation task" on the computer, the computer can automatically complete a series of remote control operations on the equipment. At the same time, it can automatically verify whether the operation is in place and ensure that the operation is correct.
[0003] A search revealed Chinese Patent Publication No. CN 118604600 A, which discloses an automatic testing device for one-button sequential control function in substations. The device includes a testing platform with a circular plate rotatably connected inside. Two sliding plates are symmetrically distributed inside the testing platform and slidably connected below the circular plate. Each sliding plate has a groove, and a first sliding rod is slidably connected within the groove and fixedly connected to the circular plate. This automatic testing device for one-button sequential control function in substations relies on a bidirectional lead screw to drive the clamping and testing actions. The operator must continuously rotate the bidirectional lead screw for clamping and testing, and then rotate it in the opposite direction after testing. The entire process depends on the operator continuously rotating the bidirectional lead screw, which is cumbersome, inefficient, and causes fatigue. Therefore, this automatic testing device for one-button sequential control function in substations is provided to solve these problems. Utility Model Content
[0004] The purpose of this utility model is to provide an automatic testing device for one-button sequential control function in substations, which has the advantages of simple operation and fast and stable clamping and testing, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic testing device for one-button sequential control function in a substation, comprising: a detection support mechanism, the detection support mechanism being used to provide support for subsequent clamping and testing of the circuit breaker, the detection support mechanism including support legs, an upper support platform fixedly connected above the support legs, a cross guide rail fixedly connected above the upper support platform, two sets of connecting rod slots for the detection support mechanism penetrating to its lower part being opened above the longitudinal slide rail of the cross guide rail, and two sets of handle through holes penetrating to its lower part being opened above the upper support platform;
[0006] A circuit breaker fixing mechanism is provided inside the detection support mechanism, and the circuit breaker fixing mechanism is used to stably support the circuit breaker to be tested;
[0007] A detection head mounting mechanism is provided on the circuit breaker fixing mechanism. The detection head mounting mechanism is used to replace and fix detection heads adapted to different circuit breaker models.
[0008] As a further embodiment of this utility model: the circuit breaker fixing mechanism includes an upward push handle, a first support spring is fixedly connected between the upward push handle and the bottom of the upper support platform, the upward push handle passes through two sets of handle through holes and is fixedly connected to an upper moving plate between the upper support platform and the cross guide rail, two sets of rotating shafts are symmetrically rotatably connected to the inner side of the cross guide rail, each set of rotating shafts passes through the cross guide rail and a set of right-angle rotating arms is fixedly connected to both sides of it, the right-angle rotating arms are respectively provided with a first sliding groove and a second sliding groove on their sides, the cross... Two sets of transverse clamping blocks and two sets of longitudinal clamping blocks are provided above the guide rail. Each set of transverse clamping blocks has a first sliding column fixedly connected to both sides. Four sets of second sliding columns are symmetrically fixedly connected to both sides of the upper moving plate. A set of connecting rotating arms is rotatably connected to both sides of the upper moving plate. Three sets of guide through holes are opened on the side of the longitudinal clamping block. A longitudinal clamping plate is provided on the side of the longitudinal clamping block. Two sets of long guide columns and a set of long threaded rods are fixedly connected to the side of the longitudinal clamping plate near the longitudinal clamping block. An adjusting nut is rotatably connected to the outside of one set of guide through holes.
[0009] As a further embodiment of this utility model: the detection head mounting mechanism includes a fixed box, a positioning block slot is provided on the top of the fixed box, a top block groove is provided on the inner side of the positioning block slot, a trapezoidal top block is provided on the inner side of the top block groove, a second support spring is fixedly connected between the trapezoidal top block and the inner side wall of the top block groove, a connecting rod is fixedly connected to the side of the trapezoidal top block, an installation positioning block adapted to the positioning block slot is provided on the inner side of the positioning block slot, and a circuit breaker detection head is fixedly connected to the side of the installation positioning block.
[0010] As a further embodiment of this utility model: a slider adapted to the horizontal slide rail of the cross guide slide rail is fixedly connected below the horizontal clamping block, and a slider adapted to the vertical slide rail of the cross guide slide rail is fixedly connected below the vertical clamping block.
[0011] As a further embodiment of this utility model: the first sliding column is adapted to the first sliding groove, the second sliding column is adapted to the second sliding groove, and the first sliding column and the second sliding column slide inside the first sliding groove and the second sliding groove, respectively.
[0012] As a further embodiment of this utility model: one end of the connecting rotating arm is rotatably connected to the upper moving plate, and the other end of the connecting rotating arm is rotatably connected to the inner side of the longitudinal clamping block at the corresponding position.
[0013] As a further embodiment of this utility model: the dimensions of the long guide post and the long threaded rod are adapted to the guide through hole, the long guide post and the long threaded rod slide inside the guide through hole at the corresponding position, and the long threaded rod is threadedly connected to the adjusting nut to adjust the elongation of the longitudinal clamping plate to finely adjust to the width of different circuit breakers.
[0014] As a further improvement of this utility model: a clamping plate is provided above the horizontal clamping block, and both the clamping plate above the horizontal clamping block and the vertical clamping plate are made of metal, with soft rubber material fixedly connected to the clamping surface.
[0015] As a further embodiment of this utility model: the connecting rod extends from the inside of the top block groove to the outside of the fixed box body. When the second support spring naturally extends without being subjected to external force, the inclined part of the trapezoidal top block extends upward and out of the inside of the fixed box body outside the top block groove.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. In this utility model, the upward push handle is linked with the spring to drive the horizontal and vertical clamping blocks to expand or clamp synchronously. After release, it automatically resets to achieve stable clamping. With the help of the adjusting nut, the long threaded rod is driven to finely adjust the longitudinal clamping plate, which can adapt to circuit breakers of different widths. The soft rubber clamping surface is anti-slip and wear-resistant.
[0018] 2. In this utility model, a stable reference is provided by the support feet and the cross guide rail. The handle through hole and the grooved design of the connecting rod make the clamping block linkage structure compact. The overall operation process realizes one-click clamping and detection head replacement through mechanical transmission, without the need for complicated manual operation. The structure is simple and reliable, and it is convenient for on-site automated testing. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;
[0021] Figure 3 This is a schematic diagram of the handle through hole in this utility model;
[0022] Figure 4 This is a schematic diagram of the circuit breaker fixing mechanism of this utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the long threaded rod of this utility model;
[0024] Figure 6 This is a schematic diagram of the positioning block slot in this utility model;
[0025] Figure 7This is a schematic diagram of the top block groove in this utility model.
[0026] In the diagram: 1. Detection support mechanism; 2. Circuit breaker fixing mechanism; 3. Detection head mounting mechanism; 11. Support leg; 12. Upper support platform; 13. Cross guide rail; 14. Connecting rod slot; 15. Handle through hole; 21. Upward push handle; 22. First support spring; 23. Upper moving plate; 24. Rotating shaft; 25. Right-angle rotating arm; 26. First slide groove; 27. Second slide groove; 28. Transverse clamping block; 29. First slide... Column; 210, Second sliding column; 211, Connecting swing arm; 212, Longitudinal clamping block; 213, Guide through hole; 214, Longitudinal clamping plate; 215, Long guide column; 216, Long threaded rod; 217, Adjusting nut; 31, Fixed box body; 32, Top block groove; 33, Trapezoidal top block; 34, Second support spring; 35, Connecting tie rod; 36, Positioning block slot; 37, Installing positioning block; 38, Circuit breaker detection head. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.
[0029] Reference Figures 1 to 7In this embodiment of the utility model, an automatic testing device for one-button sequential control function of a substation includes:
[0030] The detection support mechanism 1 is used to provide support for the subsequent clamping and detection of the circuit breaker. The detection support mechanism 1 includes a support foot 11, an upper support platform 12 is fixedly connected above the support foot 11, a cross guide slide rail 13 is fixedly connected above the upper support platform 12, two sets of connecting rod slots 14 through the longitudinal slide rail of the cross guide slide rail 13 are provided above the cross guide slide rail 13, and two sets of handle through holes 15 through the upper support platform 12 are provided above the upper support platform 12.
[0031] Circuit breaker fixing mechanism 2 is provided inside the detection support mechanism 1. Circuit breaker fixing mechanism 2 is used to stably support the circuit breaker to be tested.
[0032] The detection head mounting mechanism 3 is installed on the circuit breaker fixing mechanism 2. The detection head mounting mechanism 3 is used to replace and fix detection heads that are suitable for different circuit breaker models.
[0033] The circuit breaker fixing mechanism 2 includes an upward push handle 21, a first support spring 22 fixedly connected between the upward push handle 21 and the bottom of the upper support platform 12, an upper moving plate 23 fixedly connected between the upward push handle 21 and the upper support platform 12 and the cross guide rail 13 through two sets of handle through holes 15, and two sets of rotating shafts 24 symmetrically rotatably connected inside the cross guide rail 13, each set of rotating shafts 24 passing through the cross guide rail 13 and a set of right-angle rotating arms 25 fixedly connected on both sides, the right-angle rotating arms 25 having a first sliding groove 26 and a second sliding groove 27 respectively opened on the side, the cross guide rail... Two sets of horizontal clamping blocks 28 and two sets of vertical clamping blocks 212 are provided above the upper sliding plate 13. A slider adapted to the horizontal slide rail of the cross guide slide rail 13 is fixedly connected below the horizontal clamping blocks 28. A slider adapted to the vertical slide rail of the cross guide slide rail 13 is fixedly connected below the vertical clamping blocks 212. First sliding posts 29 are fixedly connected to both sides of each set of horizontal clamping blocks 28. Four sets of second sliding posts 210 are symmetrically fixedly connected to both sides of the upper sliding plate 23. The first sliding posts 29 are adapted to the first sliding groove 26, and the second sliding posts 210 are adapted to the second sliding groove 27. The column 210 slides inside the first slide groove 26 and the second slide groove 27 respectively. A set of connecting arms 211 are rotatably connected to both sides of the upper moving plate 23. One end of the connecting arm 211 is rotatably connected to the upper moving plate 23, and the other end of the connecting arm 211 is rotatably connected to the inner side of the longitudinal clamping block 212 at the corresponding position. Three sets of guide through holes 213 are opened on the side of the longitudinal clamping block 212. A longitudinal clamping plate 214 is provided on the side of the longitudinal clamping block 212. Two sets of long guide columns 215 and a set of long threaded rods 216 are fixedly connected to the side of the longitudinal clamping plate 214 near the longitudinal clamping block 212. One set of guide holes 213 is rotatably connected to an adjusting nut 217 on the outside. The dimensions of the long guide post 215 and the long threaded rod 216 are adapted to the guide holes 213. The long guide post 215 and the long threaded rod 216 slide inside the guide holes 213 at the corresponding positions. The long threaded rod 216 is threadedly connected to the adjusting nut 217 to adjust the elongation of the longitudinal clamping plate 214 to fine-tune to adapt to the width of different circuit breakers. A clamping plate is provided above the transverse clamping block 28. Both the clamping plate above the transverse clamping block 28 and the longitudinal clamping plate 214 are made of metal, and the clamping surface is fixedly connected with soft rubber material.
[0034] During operation, by pushing the handle 21 upward, an upward pulling force is applied to overcome the elastic force of the first support spring 22, causing the upper moving plate 23 to move upward below the cross guide rail 13. When the upper moving plate 23 moves upward, the second sliding columns 210 on both sides slide within the second sliding groove 27 of the right-angle rotating arm 25, driving the right-angle rotating arm 25 to rotate around the rotating shaft 24. The rotation of the right-angle rotating arm 25 drives the first sliding groove 26 to move, causing the first sliding column 29 to slide within the first sliding groove 26, pushing the two sets of transverse clamping blocks 28 to slide outward on the transverse slide rail of the cross guide rail 13 via the slider. At the same time, the upper... The upward movement of the moving plate 23 pushes the longitudinal clamping block 212 along the longitudinal slide rail of the cross guide rail 13 away from the center through the connecting rotating arm 211. At this time, the circuit breaker can be easily placed in it. After releasing the upward push handle 21, the first support spring 22 rebounds, causing the upper moving plate 23 to reset. The transverse clamping block 28 and the longitudinal clamping block 212 return to their original positions, realizing the stable clamping of the circuit breaker. The long threaded rod 216 moves under the action of the thread, driving the longitudinal clamping plate 214 to slide in the guide through hole 213 under the guidance of the long guide column 215, thereby extending and retracting to finely adjust to the width of different circuit breakers.
[0035] The detection head mounting mechanism 3 includes a fixed housing 31, a positioning block slot 36 on the top of the fixed housing 31, a top block groove 32 on the inner side of the positioning block slot 36, a trapezoidal top block 33 on the inner side of the top block groove 32, a second support spring 34 fixedly connected between the trapezoidal top block 33 and the inner wall of the top block groove 32, a connecting rod 35 fixedly connected to the side of the trapezoidal top block 33, the connecting rod 35 passing through the inner side of the top block groove 32 to the outer side of the fixed housing 31, when the second support spring 34 naturally extends without being subjected to external force, the inclined part of the trapezoidal top block 33 extends upward and out of the inner side of the fixed housing 31 outside the top block groove 32, an installation positioning block 37 adapted to the positioning block slot 36 is provided on the inner side of the positioning block slot 36, and a circuit breaker detection head 38 is fixedly connected to the side of the installation positioning block 37.
[0036] When replacing the detection head, pull the connecting rod 35 outward to move the trapezoidal top block 33 within the top block groove 32, compressing the second support spring 34 so that the inclined portion of the trapezoidal top block 33 is completely retracted into the top block groove 32, eliminating the obstruction to the positioning block slot 36. At this time, the mounting positioning block 37 can be freely inserted into or removed from the positioning block slot 36. According to the circuit breaker model, select the appropriate mounting positioning block 37 and the circuit breaker detection head 38 fixed on it. Align the mounting positioning block 37 with the positioning block slot 36 and press it down directly. The inclined surface of the trapezoidal top block 33 is squeezed, compressing the second support spring 34, so that the inclined portion of the trapezoidal top block 33 is completely retracted into the top block groove 32. After the mounting positioning block 37 is inserted into place, the second support spring 34 pushes back the trapezoidal top block 33 to lock it in place.
[0037] The working principle of this utility model is as follows: the operator pushes the upward handle 21 to overcome the resistance of the first support spring 22, which drives the upper moving plate 23 to rise along the cross guide rail 13. The rising upper moving plate 23 slides in the second slide groove 27 through the second sliding column 210, which forces the right-angle rotating arm 25 to rotate around the rotating shaft 24. This rotation slides in the first slide groove 26 through the first sliding column 29, which pushes the two sets of transverse clamping blocks 28 to move outward along the transverse slide rail of the cross slide rail. At the same time, the rising upper moving plate 23 pushes the two sets of longitudinal clamping blocks 212 to move away from the center along the longitudinal slide rail through the connecting rotating arm 211. The four sets of clamping blocks expand outward synchronously to form an open space. At this time, the circuit breaker to be tested is placed in the center of the upper support platform 12.
[0038] Release the push handle 21, the first support spring 22 drives the upper moving plate 23 to move down and reset. During the downward movement, the right-angle rotating arm 25 is rotated in the opposite direction through the second sliding column 210, thereby pulling the two sets of transverse clamping blocks 28 to move towards the center along the transverse slide rail to clamp the transverse sides of the circuit breaker. At the same time, the upper moving plate 23 moves down and pushes the longitudinal clamping block 212 to move towards the center along the longitudinal slide rail through the connecting arm 211 and the connecting rod slot 14 to clamp the longitudinal ends. At this time, the circuit breaker detection head 38 just contacts the detection point of the circuit breaker for testing. If the clamping width needs to be finely adjusted, rotate the adjusting nut 217 to drive the long threaded rod 216 to move linearly, which drives the longitudinal clamping plate 214 to slide along the two sets of long guide columns 215 in the guide through hole 213, extending and retracting its relative position with the longitudinal clamping block 212 to adapt to different circuit breaker widths. The surface is protected by soft rubber for anti-slip.
[0039] When the test head needs to be replaced, pull the connecting rod 35 outward to compress the second support spring 34 so that the trapezoidal top block 33 is fully retracted into the top block slot 32. Then the old mounting positioning block 37 (with circuit breaker test head 38) can be removed. During installation, align the mounting positioning block 37 adapted to the new test head with the positioning block slot 36 and press it down directly. Its side wall presses against the inclined surface of the trapezoidal top block 33, forcing the trapezoidal top block 33 to continuously retract and compress the second support spring 34 until it passes through. After it is inserted into place, the second support spring 34 immediately rebounds and pushes the trapezoidal top block 33 outward to lock the mounting positioning block 37 to achieve self-locking. After locking, the circuit breaker test head 38 is stably in the test position.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for automatically testing the one-key sequential control function of a substation, characterized in that, include: The detection support mechanism (1) is used to provide support for the subsequent clamping and detection of the circuit breaker. The detection support mechanism (1) includes a support foot (11). An upper support platform (12) is fixedly connected above the support foot (11). A cross guide slide rail (13) is fixedly connected above the upper support platform (12). Two sets of connecting rod slots (14) through which the detection support mechanism (1) passes through are opened above the longitudinal slide rail of the cross guide slide rail (13). Two sets of handle through holes (15) through which the upper support platform (12) passes through are opened above the upper support platform (12). Circuit breaker fixing mechanism (2), the circuit breaker fixing mechanism (2) is provided inside the detection support mechanism (1), the circuit breaker fixing mechanism (2) is used to stably support the circuit breaker to be tested; The detection head mounting mechanism (3) is provided on the circuit breaker fixing mechanism (2) and is used to replace and fix detection heads adapted to different circuit breaker models.
2. The automatic testing device for the one-key sequential control function of a substation according to claim 1, characterized in that, The circuit breaker fixing mechanism (2) includes an upward push handle (21), and a first support spring (22) is fixedly connected between the upward push handle (21) and the bottom of the upper support platform (12). The upward push handle (21) passes through two sets of handle through holes (15) and is fixedly connected between the upper support platform (12) and the cross guide rail (13) to an upper moving plate (23). Two sets of rotating shafts (24) are symmetrically rotatably connected to the inner side of the cross guide rail (13). Each set of rotating shafts (24) passes through the cross guide rail (13) and is fixedly connected to a set of right-angle rotating arms (25) on both sides. A set of first sliding grooves (26) and second sliding grooves (27) are respectively opened on the side of the right-angle rotating arms (25). Two sets of horizontal... The transverse clamping block (28) and two sets of longitudinal clamping blocks (212) are connected to each other. The first sliding column (29) is fixedly connected to both sides of each set of transverse clamping blocks (28). The upper moving plate (23) is symmetrically fixedly connected to both sides of the upper moving plate (23). A set of connecting rotating arms (211) is rotatably connected to both sides of the upper moving plate (23). Three sets of guide through holes (213) are opened on the side of the longitudinal clamping block (212). A longitudinal clamping plate (214) is provided on the side of the longitudinal clamping block (212). Two sets of long guide columns (215) and a set of long threaded rods (216) are fixedly connected to the side of the longitudinal clamping plate (214) near the longitudinal clamping block (212). An adjusting nut (217) is rotatably connected to the outside of one set of guide through holes (213). 3.The device of claim 2, wherein The detection head mounting mechanism (3) includes a fixed box (31), a positioning block slot (36) is provided on the top of the fixed box (31), a top block groove (32) is provided on the inner side of the positioning block slot (36), a trapezoidal top block (33) is provided on the inner side of the top block groove (32), a second support spring (34) is fixedly connected between the trapezoidal top block (33) and the inner side wall of the top block groove (32), a connecting rod (35) is fixedly connected to the side of the trapezoidal top block (33), an installation positioning block (37) adapted to the positioning block slot (36) is provided on the inner side of the positioning block slot (36), and a circuit breaker detection head (38) is fixedly connected to the side of the installation positioning block (37).
4. The automatic testing device for the one-key sequential control function of a substation according to claim 2, characterized in that, The transverse clamp (28) is fixedly connected to a slider that matches the transverse slide rail of the cross guide rail (13), and the longitudinal clamp (212) is fixedly connected to a slider that matches the longitudinal slide rail of the cross guide rail (13).
5. The automatic testing device for substation one-key sequential control function according to claim 2, characterized in that, The first sliding column (29) is adapted to the first sliding groove (26), and the second sliding column (210) is adapted to the second sliding groove (27). The first sliding column (29) and the second sliding column (210) slide inside the first sliding groove (26) and the second sliding groove (27), respectively.
6. The automatic testing device for substation one-key sequential control function according to claim 2, characterized in that, One end of the connecting arm (211) is rotatably connected to the upper moving plate (23), and the other end of the connecting arm (211) is rotatably connected to the inner side of the longitudinal clamping block (212) at the corresponding position.
7. The automatic testing device for substation one-key sequential control function according to claim 2, characterized in that, The dimensions of the long guide post (215) and the long threaded rod (216) are adapted to the guide through hole (213). The long guide post (215) and the long threaded rod (216) slide inside the guide through hole (213) at the corresponding position. The long threaded rod (216) is threadedly connected to the adjusting nut (217) to adjust the elongation of the longitudinal clamp (214) to fine-tune the width of different circuit breakers. 8.The automatic test device for substation one-key sequential control function according to claim 2, characterized in that, A clamping plate is provided above the horizontal clamping block (28). Both the clamping plate above the horizontal clamping block (28) and the vertical clamping plate (214) are made of metal, and the clamping surface is fixedly connected with soft rubber material.
9. The automatic testing device for substation one-key sequential control function according to claim 3, characterized in that, The connecting rod (35) extends from the inside of the top block groove (32) to the outside of the fixed box (31). When the second support spring (34) is not subjected to external force and naturally extends, the inclined part of the trapezoidal top block (33) extends upward and out of the inside of the fixed box (31) outside the top block groove (32).
Citation Information
Patent Citations
Automatic testing device for one-key sequential control function of transformer substation
CN118604600A