A remote control device for high-voltage disconnect switches

Abstract

This utility model provides a remote control device for a high-voltage disconnect switch, including a main support and a disconnect switch. The disconnect switch is mounted on the main support and has an open position and a closed position. The main support also has a control structure for controlling the opening and closing of the disconnect switch. The control structure includes a connecting frame fixedly mounted on the main support, a pipe body mounted on the connecting frame, a first outlet pipe and a second outlet pipe connected to both ends of the pipe body, and the outlet ends of the first and second outlet pipes are respectively connected to a counterweight barrel with control components. Valve bodies are respectively installed between the first and second outlet pipes and the pipe body. This utility model significantly improves the operational stability of the equipment under harsh working conditions, while the remote control function greatly improves operational efficiency and safety.

Description

Technical Field

[0001] This utility model relates to a remote control device for a high-voltage disconnect switch. Background Technology

[0002] High-voltage disconnect switches are critical safety isolation devices in power systems, and their opening and closing operations directly affect the efficiency of line maintenance and fault handling. Currently, the mainstream control methods suffer from the following problems: 1) Limitations of manual operation: Manual on-site operation of the disconnect switch is required, resulting in low efficiency in harsh environments (such as mountainous areas, rainy or snowy weather) or high-voltage hazardous areas, and delaying fault diagnosis time; 2) Disadvantages of electric drive: Automated disconnect switches using motors or spring mechanisms, while capable of remote control, suffer from complex structures, high costs, susceptibility to electromagnetic interference, and difficulty in post-fault repair; 3) Inefficient fault location: In long-distance transmission lines (tens of kilometers), fault location relies on manual segmented inspections or complex online monitoring systems, taking hours or even longer, severely impacting power restoration. Utility Model Content

[0003] This invention provides a remote control device for high-voltage disconnect switches, which can effectively solve the above-mentioned problems.

[0004] This utility model is implemented as follows:

[0005] A remote control device for a high-voltage disconnector includes a main support and a disconnector. The disconnector is mounted on the main support and has an open position and a closed position. The main support is also provided with a control structure for controlling the opening and closing of the disconnector. The control structure includes a connecting frame fixedly mounted on the main support, a pipe body mounted on the connecting frame, a first outlet pipe and a second outlet pipe connected to both ends of the pipe body, and the outlet ends of the first outlet pipe and the second outlet pipe are respectively connected to a counterweight barrel with a control component. A valve body is respectively installed between the first outlet pipe and the second outlet pipe and the pipe body. The valve body is electrically connected to a remote control module to drive the control component to control the opening or closing of the disconnector.

[0006] The beneficial effects of this utility model are:

[0007] (1) This utility model sets up a hydraulic drive control structure consisting of a connecting frame, pipe body, double water outlet pipe, counterweight barrel and solenoid valve, and uses a remote control module to achieve precise control of the isolating switch. It has the advantages of simple and reliable structure, strong anti-electromagnetic interference and adjustable driving force. It not only solves the problem that traditional electric mechanisms are easily interfered with in high-pressure environments, but also significantly improves the operating stability of the equipment under harsh working conditions through hydraulic transmission. At the same time, the remote control function greatly improves the operating efficiency and safety. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a side view of the present invention.

[0010] Figure 2 This is a schematic diagram of the closed state of the disconnecting switch of this utility model.

[0011] Figure 3 This is a schematic diagram of the open state of the disconnecting switch of this utility model.

[0012] Figure 4 This is a control block diagram of the control device of this utility model.

[0013] Explanation of icon numbers:

[0014] 10. Main support frame; 20. Disconnecting switch;

[0015] 30. Control structure; 300. Connecting frame; 302. Mounting sleeve; 304. Pipe body; 306. First outlet pipe; 3060. First solenoid valve; 3062. Counterweight barrel; 3064. Connecting rod; 3066. Control component; 308. Second outlet pipe; 3080. Second solenoid valve. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0017] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] Reference Figure 1-4 As shown, a remote control device for a high-voltage disconnector includes a main support 10 and a disconnector 20. The disconnector 20 is mounted on the main support 10 and has an open position and a closed position. The main support 10 is also equipped with a control structure 30 for controlling the opening and closing of the disconnector 20. The control structure 30 includes a connecting frame 300 fixedly mounted on the main support 10, a pipe body 304 mounted on the connecting frame 300, a first outlet pipe 306 and a second outlet pipe 308 connected to both ends of the pipe body 304, with the outlet ends of the first outlet pipe 306 and the second outlet pipe 308 respectively connected to a counterweight barrel 3062 with a control component 3066, and valve bodies respectively installed between the first outlet pipe 306 and the second outlet pipe 308 and the pipe body 304. The remote control module is electrically connected to drive the control component 3066 to control the opening or closing of the disconnecting switch 20. The remote control module receives APP commands via wireless communication to trigger the first solenoid valve 3060 or the second solenoid valve 3080 to be energized. It also includes a position sensor to detect the open or closed position of the disconnecting switch 20 and feed back a signal to the remote control module to cut off the power supply to the valve body. A connecting rod 3064 is provided in the middle of the counterweight barrel 3062. The connecting rod 3064 is hinged to the control component 3066, thereby enabling the control component 3066 to move and control the opening or closing of the disconnecting switch 20. The control component 3066 is a rotatable lever structure. Its rotation axis is fixed on the counterweight barrel 3062, and its two ends are respectively connected to the connecting rod 3064 and the knife switch operating arm of the disconnecting switch 20.

[0019] Among them, the lever-type control component 3066 is fixed by a rotating shaft to form a force-saving lever. Its fulcrum position is optimized to meet the ratio of the closing side lever arm length to the opening side = 1:1.5 (optimal torque ratio). The rotation angle is limited to within 60° (to prevent overtravel). The connecting rod 3064 has a double hinge structure to eliminate motion dead points.

[0020] It also includes an installation sleeve 302 for fixing the pipe body 304.

[0021] The bottom of the counterweight barrel 3062 is equipped with a drain valve to drain the water accumulated in the cavity during maintenance.

[0022] The main support 10 is equipped with a waterproof cover to protect the electrical components of the control structure 30.

[0023] The pipe body 304 has a three-way structure, with the middle interface connected to the water source and the two end interfaces connected to the first outlet pipe 306 and the second outlet pipe 308, respectively.

[0024] This case also includes a control procedure for a remote control device for a high-voltage disconnector, the procedure of which is as follows:

[0025] Step 1: Issuing remote commands

[0026] Users can select the opening / closing operation command through the APP remote control terminal, and the command is transmitted to the communication module via WiFi / 4G;

[0027] Step Two: Signal Reception and Processing

[0028] The communication module receives instructions and converts them into control signals. The main controller (PLC / microcontroller) analyzes the signals and determines whether to perform a circuit breaker opening or closing operation.

[0029] Step 3: Solenoid valve actuation

[0030] Opening operation: The main controller sends an energizing command to the opening solenoid valve, the opening solenoid valve opens, and water flows into the opening counterweight tank. Closing operation: The main controller sends an energizing command to the closing solenoid valve, the closing solenoid valve opens, and water flows into the closing counterweight tank 3062.

[0031] Step 4: Hydraulic-Mechanical Action Execution

[0032] Opening process: The weight of the opening counterweight increases, and the pulling force is transmitted through the mechanical link 3064, which drives the disconnect switch 20 knife switch to move to the open position. Closing process: The weight of the closing counterweight 3062 increases, and the pushing force is transmitted through the mechanical link 3064, which drives the disconnect switch 20 knife switch to move to the closed position.

[0033] Step 5: Status Detection and Feedback

[0034] Opening / closing status detection: The position sensor monitors the position of the disconnector in real time. After detecting that the disconnector is fully in position (opening / closing position), it sends a feedback signal to the main controller. The solenoid valve closes: After receiving the position signal, the main controller immediately cuts off the power supply to the corresponding solenoid valve, the water flow stops, and the counterweight tank 3062 maintains the current state.

[0035] Step Six: System Reset and Standby

[0036] Once the disconnector is stable at the target position (open or closed), the remote control terminal displays the operation completed status, and the system returns to standby, awaiting the next instruction.

[0037] In step four, if an action timeout is detected (such as abnormal water flow or mechanical jamming), the main controller triggers an alarm and forces a power outage.

[0038] Working principle: After receiving the APP command through the remote control module, the first solenoid valve 3060 or the second solenoid valve 3080 is energized and opened, so that the water flow is diverted through the pipe body 304 and injected into the corresponding side cavity of the counterweight barrel 3062 from the first outlet pipe 306 or the second outlet pipe 308. The change in the weight of the water drives the control component 3066 to move. The control component 3066 is a rotatable lever structure. When the counterweight increases on the side where the water is injected, the linear tension is converted into rotational torque through the hinge transmission of the connecting rod 3064, which drives the knife switch operating arm of the disconnecting switch 20 to complete the opening or closing action. The position sensor detects the position status of the disconnecting switch 20 in real time and feeds it back to the remote control module. After the knife switch reaches the designated position, the power supply of the solenoid valve is cut off, forming a closed-loop control system of "command-hydraulic drive-mechanical transmission-feedback", realizing precise remote control of the high-voltage disconnecting switch.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A remote control device for a high-voltage disconnector switch, comprising a main support (10) and a disconnector switch (20), characterized in that, The disconnect switch (20) is mounted on the main support (10) and has an open position and an closed position; the main support (10) is also provided with a control structure (30) for controlling the opening and closing of the disconnect switch (20); the control structure (30) includes a connecting frame (300) fixedly mounted on the main support (10), a pipe body (304) mounted on the connecting frame (300), and a first outlet pipe (306) connected to both ends of the pipe body (304). The first water outlet pipe (306) and the second water outlet pipe (308) are respectively connected to a counterweight barrel (3062) with a control element (3066). The valve body is respectively installed between the first water outlet pipe (306) and the second water outlet pipe (308) and the pipe body (304). The valve body is connected to a remote control module to drive the control element (3066) to control the disconnecting switch (20) to open or close.

2. The remote control device for a high-voltage disconnect switch according to claim 1, characterized in that, A connecting rod (3064) is provided in the middle of the counterweight barrel (3062). The connecting rod (3064) is hinged to the control component (3066), thereby enabling the control component (3066) to move and control the disconnecting switch (20) to open or close.

3. The remote control device for a high-voltage disconnect switch according to claim 1, characterized in that, The control component (3066) is a rotatable lever structure, with its rotation axis fixed on the counterweight barrel (3062), and its two ends connected to the connecting rod (3064) and the knife switch operating arm of the disconnect switch (20) respectively.

4. The remote control device for a high-voltage disconnect switch according to claim 1, characterized in that, It also includes an installation sleeve (302) for fixing the tube body (304).

5. A remote control device for a high-voltage disconnector according to claim 1, characterized in that, The valve body includes a first solenoid valve (3060) and a second solenoid valve (3080). The remote control module receives APP commands via wireless communication and triggers the first solenoid valve (3060) or the second solenoid valve (3080) to be energized.

6. The remote control device for a high-voltage disconnect switch according to claim 1, characterized in that, It also includes a position sensor for detecting the open or closed position of the isolating switch (20) and feeding back a signal to the remote control module to cut off the power supply to the valve body.

7. The remote control device for a high-voltage disconnect switch according to claim 1, characterized in that, The bottom of the counterweight barrel (3062) is equipped with a drain valve for draining water from the cavity during maintenance.

8. A remote control device for a high-voltage disconnector according to claim 1, characterized in that, The main support (10) is provided with a waterproof cover to protect the electrical components of the control structure (30).

9. A remote control device for a high-voltage disconnector according to claim 1, characterized in that, The pipe body (304) has a three-way structure, with the middle interface connected to the water source and the two end interfaces connected to the first water outlet pipe (306) and the second water outlet pipe (308) respectively.

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