10KV overhead line three-phase combined-phase short-circuit grounding knife-switch and wireless remote control system

Abstract

The invention relates to the technical field of power equipment, in particular to a 10KV overhead line three-phase closed-phase short-circuit grounding knife switch and wireless remote control system, which comprises a mounting assembly, a wireless remote control module, a power supply module and a power supply module, and the switching assembly comprises a switching rod rotationally mounted on the mounting base plate, the switching rod is fixedly sleeved with a plurality of first connecting lantern rings, and blades are arranged on the first connecting lantern rings. The three-phase closed-phase short-circuit grounding knife-switch has the advantages that the three-phase closed-phase short-circuit grounding knife-switch is installed on the base electric pole behind the 10KV overhead line section or branch line circuit breaker tower, the situation that a heavy three-phase short-circuit grounding wire needs to be carried in traditional assembling and disassembling operation is changed, the safety risk of distribution network operators is reduced, the overtime planned maintenance is avoided, and the working efficiency is improved. Great economic benefits are brought to power supply enterprises and vast electricity customers, and violation accidents are effectively eradicated.

Description

Technical Field

[0001] The invention relates to the technical field, in particular to a 10KV overhead line three-phase combined short-circuit grounding switch and a wireless remote control system. Background Art

[0002] When the 10KV overhead line is out of power for maintenance or fault maintenance, the progress of distribution network operators when installing and removing the three-phase short-circuit grounding wire is very slow. The three-phase three-phase short-circuit grounding wire is bulky, difficult to operate, has a high risk of electric shock during installation and removal, and consumes a lot of physical energy. The inspection of poles before installation and removal, the inspection and testing of pole climbing tools, the inspection of auxiliary insulating tools, etc. consume a lot of installation and removal time and cannot improve work efficiency. A lot of precious working time is consumed when installing and removing the grounding wire, and the three-phase short-circuit grounding wire cannot be installed and removed quickly, resulting in each planned maintenance time being exceeded, reducing power supply reliability, increasing customer complaints, and causing great economic losses to power supply companies and electricity users. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] The invention aims to provide a 10KV overhead line three-phase combined short-circuit grounding knife switch, which aims to solve the problem that the existing maintenance time is long and is not conducive to improving power supply reliability.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a 10KV overhead line three-phase short-circuit grounding knife switch, which includes an installation component, including a mounting chassis, and an insulating terminal arranged on the mounting chassis; a switching component, including a switching rod rotatably mounted on the mounting chassis, a plurality of connecting rings are fixedly sleeved on the switching rod, and a blade is arranged on the connecting ring.

[0006] As a preferred solution of the 10KV overhead line three-phase short-circuit grounding knife switch of the present invention, wherein: a contact block is provided at a position of the insulating terminal close to the blade, and a contact cavity for contact of the blade is provided inside the contact block, a connecting ring 2 fixedly sleeved on the outside of the switching rod is provided between the two connecting rings 1, and a grounding copper strip is provided on the connecting ring 2.

[0007] As a preferred solution of the 10KV overhead line three-phase combined short-circuit grounding switch of the present invention, wherein: the contact end of the grounding copper strip is softly connected to the external connection.

[0008] As a preferred solution of the 10KV overhead line three-phase short-circuit grounding switch of the present invention, both ends of the switching rod penetrate the mounting chassis and slide to the outside of the mounting chassis, one end is connected to the motor output shaft, and one end is sleeved with a three-way sleeve, and the other end of the three-way sleeve is sleeved with a control rod.

[0009] As a preferred solution of the 10KV overhead line three-phase combined short-circuit grounding switch of the present invention, pull rings are provided at both ends of the control rod.

[0010] As a preferred solution of the 10KV overhead line three-phase combined short-circuit grounding switch of the present invention, a copper bar for connection is provided between the insulating terminal and the contact block, and mounting holes for connection are provided at both ends of the copper bar.

[0011] As a preferred solution of the 10KV overhead line three-phase combined short-circuit grounding switch of the present invention, wherein: the contact end of the copper busbar and the contact cavity is arranged in a T shape.

[0012] As a preferred solution of the 10KV overhead line three-phase combined short-circuit grounding knife switch of the present invention, wherein: a plurality of fixed eyelets are excavated on the installation chassis, and are symmetrically arranged in pairs.

[0013] The beneficial effects of the 10KV overhead line three-phase short-circuit grounding switch of the present invention are as follows: the three-phase short-circuit grounding switch is installed on a pole behind the 10KV overhead line section or branch line circuit breaker tower, which changes the situation in which the bulky three-phase short-circuit grounding wire needs to be carried in the traditional installation and disassembly operation, reduces the safety risk of distribution network operators, avoids timeout of planned maintenance, brings great economic benefits to power supply companies and the majority of electricity users, and effectively prevents the occurrence of violations.

[0014] Another object of the present invention is to provide a wireless remote control system, which aims to solve the problem of falling from a high altitude and electric shock when climbing a pole to control a grounding switch.

[0015] To solve the above technical problems, the present invention also provides the following technical solutions: a wireless remote control system, comprising a 10KV overhead line three-phase short-circuit grounding switch; and a control unit, comprising a maintenance-free battery, a smartphone wireless controller and a forward and reverse limit switch; the smartphone wireless controller is connected to a DC contactor, and controls the start and stop and forward and reverse rotation of the motor through the DC contactor; the maintenance-free battery can power the equipment; the forward and reverse limit switch can limit the forward and reverse angle of the grounding switch.

[0016] As a preferred solution of the wireless remote control system of the present invention, the maintenance-free battery is connected to a photovoltaic panel.

[0017] The beneficial effect of the wireless remote control system of the present invention is that through the setting of the control unit, when there is a fault at the rear end of the circuit breaker or a planned line maintenance, the distribution network operators do not need to climb the pole or touch the equipment. They only need to use a wireless smartphone to remotely control the line to quickly switch to the maintenance state, effectively avoiding high-risk safety accidents for the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the contact block in the present invention.

[0021] Figure 3 It is a schematic diagram of the blade closing structure in the present invention.

[0022] Figure 4 It is a schematic diagram of the blade disconnection structure in the present invention.

[0023] Figure 5 It is a schematic diagram of the control system in the present invention. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1, reference Figure 1 to Figure 4, which is the first embodiment of the present invention, provides a 10KV overhead line three-phase short-circuit grounding knife switch, including an installation component 100, including a mounting chassis 101, and an insulating terminal 102 arranged on the mounting chassis 101, wherein the insulating terminal 102 is made of ceramic material, which can prevent the current from being transmitted to the mounting chassis 101, thereby reducing the risk of equipment leakage. The switching component 200 includes a switching rod 201 rotatably mounted on the mounting chassis 101, and a plurality of connecting rings 202 are fixedly sleeved on the switching rod 201, and a blade 205 is provided on the connecting ring 202. The setting of the switching rod 201 facilitates the free adjustment of the angle of the blade 205.

[0028] Furthermore, a contact block 203 is provided near the position of the blade 205 of the insulating terminal 102, and a contact cavity 204 for the blade 205 to contact is provided inside the contact block 203. A connecting ring 206 fixedly sleeved on the outside of the switching rod 201 is provided between the two connecting rings 1 202, and a grounding copper belt 207 is provided on the connecting ring 206. When switching, the blade 205 on it can be driven to rotate by directly rotating the switching rod 201 to achieve the connection and disconnection with the contact cavity 204. When overhauling, the blade 205 can be directly closed, so that the grounding knife switch is in the overhaul state, and the current is introduced into the ground through the grounding copper belt 207, providing protection for the working environment of the staff.

[0029] Furthermore, the contact end of the grounding copper strip 207 is softly connected to the external connection. The soft connection can provide a more reliable grounding path, ensuring that when the equipment leaks or is induced to be charged, the current can be quickly introduced into the earth through the grounding wire, so that the equipment casing is no longer charged, ensuring the safety of personnel and equipment. Moreover, the soft connection can absorb and alleviate the mechanical stress caused by thermal expansion or physical vibration, and protect the grounding wire and the grounding terminal from damage. At the same time, the soft connection usually has good flexibility, making the installation and maintenance of the grounding wire more convenient, especially when it needs to bend or bypass obstacles. In addition, the soft connection is usually made of multiple strands of wire twisted together. This structure can provide better conductivity and ensure that the current can flow smoothly to the earth.

[0030] When in use, the three-phase short-circuit grounding switch can be installed directly on the pole behind the 10KV overhead line section or branch line circuit breaker tower, thus changing the traditional installation and disassembly operation, which requires carrying bulky three-phase short-circuit grounding wires, preventing operators from touching the equipment, reducing the safety risks of distribution network operators, avoiding planned maintenance timeouts, bringing great economic benefits to power supply companies and the majority of electricity users, and effectively preventing the occurrence of violations.

[0031] Example 2, reference Figure 1 to Figure 4, which is the second embodiment of the present invention, is different from the previous embodiment in that both ends of the switch rod 201 penetrate the mounting chassis 101 and slide to the outside of the mounting chassis 101, one end is connected to the motor output shaft, one end is sleeved with a three-way sleeve 208, and the other end of the three-way sleeve 208 is sleeved with a control rod 210. Because the switch rod 201 is conductive, the setting of the three-way sleeve 208 allows the staff to drive the switch rod 201 to rotate through the control rod 210, thereby realizing the manual operation of the switch rod 201 rotation and avoiding the risk of electric shock.

[0032] Furthermore, pull rings 209 are provided at both ends of the control rod 210. The design of the pull ring 209 can provide a convenient gripping point, so that the operator can more easily perform the switch operation of the knife switch. In addition, the design of the pull ring 209 also helps to quickly operate the knife switch in an emergency. For example, when it is necessary to quickly ground or disconnect the circuit, the pull ring 209 can be quickly pulled to complete the operation, thereby improving the response speed and reducing the risk of accidents. The use of the pull ring 209 also helps to reduce the risk of direct contact with live parts, especially in high-voltage environments. This is particularly important. By operating through the pull ring 209, a certain safety distance can be maintained to avoid direct contact with potentially live parts, thereby improving the safety of operation.

[0033] Furthermore, a copper bar 103 for connection is provided between the insulating terminal 102 and the contact block 203, and mounting holes for connection are provided at both ends of the copper bar 103. The installation holes enable the copper bar 103 to connect the overhead line with the contact block 203, so that the current can be easily led out during maintenance.

[0034] Furthermore, the contact end of the copper busbar 103 and the contact cavity 204 is set in a T shape. The setting of the T-shaped contact end increases the contact area between the copper busbar 103 and the contact cavity 204, thereby reducing the contact resistance, increasing the conductivity, and ensuring that the current can smoothly pass through the connection point. At the same time, the larger contact area helps to distribute the current more evenly and reduce the risk of local overheating.

[0035] Furthermore, a plurality of fixed eyelets 104 are excavated on the mounting chassis 101 and are symmetrically arranged in pairs. Due to the complex outdoor environment, the grounding switch installed outdoors is prone to shaking under the action of external forces. The fixed eyelets 104 symmetrically arranged in pairs can improve the stability of the grounding switch.

[0036] When in use, the design of the pull ring 209 can provide a convenient gripping point, allowing the operator to more easily perform the on-off operation of the knife switch. At the same time, the setting of the T-shaped contact end of the copper busbar 103 increases the contact area between the copper busbar 103 and the contact cavity 204, thereby reducing the contact resistance, increasing the conductivity, and ensuring that the current can pass through the connection point smoothly.

[0037] Example 3, reference Figure 5 , which is the third embodiment of the present invention, and this embodiment further provides a wireless remote control system. It includes a control unit, including a maintenance-free battery, a smartphone wireless controller and a forward and reverse limit switch. The smartphone wireless controller is connected to a DC contactor and controls the opening and closing and forward and reverse rotation of the motor through the DC contactor. The maintenance-free battery can power the device, and the forward and reverse limit switch can limit the forward and reverse angle of the grounding knife switch. The smartphone wireless controller can be connected to the smartphone without distance, and directly realize the function of controlling the motor

[0038] Furthermore, the maintenance-free battery is connected to a photovoltaic panel, which can convert light energy into electrical energy and store it in the maintenance-free battery, thereby saving resources.

[0039] When in use, through the setting of the control unit, when there is a fault at the rear end of the circuit breaker or a planned line maintenance, the distribution network operators do not need to climb the pole or touch the equipment. They only need to use a wireless smartphone remote control to quickly switch the line under maintenance to the maintenance state, effectively avoiding high-risk safety accidents for the operators.

[0040] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0041] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0042] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A 10KV overhead line three-phase combined short-circuit grounding switch, characterized in that: include, A mounting assembly (100) comprises a mounting chassis (101) and an insulating terminal (102) arranged on the mounting chassis (101); The switching assembly (200) comprises a switching rod (201) rotatably mounted on a mounting chassis (101), wherein a plurality of connecting collars (202) are fixedly sleeved on the switching rod (201), and a blade (205) is provided on the connecting collar (202).

2. The 10KV overhead line three-phase combined short-circuit grounding switch according to claim 1, characterized in that: A contact block (203) is provided at a position of the insulating terminal (102) close to the blade (205), and a contact cavity (204) for the blade (205) to contact is provided inside the contact block (203); a connecting ring (206) fixedly sleeved on the outside of the switching rod (201) is provided between the two connecting rings (202); and a grounding copper strip (207) is provided on the connecting ring (206).

3. The 10KV overhead line three-phase combined short-circuit grounding switch as claimed in claim 2, characterized in that: The contact end of the grounding copper strip (207) is softly connected to an external connection point.

4. The 10KV overhead line three-phase combined short-circuit grounding switch as claimed in claim 3, characterized in that: Both ends of the switch rod (201) penetrate the mounting chassis (101) and extend slidably to the outside of the mounting chassis (101), one end of which is connected to the motor output shaft and the other end of which is sleeved with a three-way sleeve (208), and the other end of the three-way sleeve (208) is sleeved with a control rod (210).

5. The 10KV overhead line three-phase combined short-circuit grounding switch as claimed in claim 4, characterized in that: Pull rings (209) are provided at both ends of the control rod (210).

6. The 10KV overhead line three-phase combined short-circuit grounding switch as claimed in claim 5, characterized in that: A copper bar (103) for connection is provided between the insulating terminal (102) and the contact block (203), and mounting holes for connection are provided at both ends of the copper bar (103).

7. The 10KV overhead line three-phase combined short-circuit grounding switch as claimed in claim 6, characterized in that: The contact end of the copper busbar (103) and the contact cavity (204) is arranged in a T shape.

8. The 10KV overhead line three-phase combined short-circuit grounding switch as claimed in claim 7, characterized in that: A plurality of fixing eyelets (104) are excavated on the installation chassis (101) and are symmetrically arranged in pairs.

9. A wireless remote control system, characterized in that: It comprises a 10KV overhead line three-phase combined short-circuit grounding switch as claimed in any one of claims 1 to 8; and Control unit, including maintenance-free battery, smartphone wireless controller and forward and reverse limit switches; The smart phone wireless controller is connected to a DC contactor, and controls the start and stop and forward and reverse rotation of the motor through the DC contactor; The maintenance-free battery can power the equipment; The forward and reverse limit switch can limit the forward and reverse angles of the grounding switch.

10. The wireless remote control system according to claim 9, characterized in that: The maintenance-free battery is connected with a photovoltaic panel.

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