Novel strong-current-prevention electric isolating switch for overhead line system

By designing a new type of electric disconnecting switch for high-voltage contact networks with electric operating mechanism and components such as lightning rods and grounding electrodes, the problems of time-consuming manual operation and safety hazards of disconnecting switches have been solved, achieving rapid response and multiple protections, and improving the automation and safety of the power system.

CN223527062UActive Publication Date: 2025-11-07LANZHOU JISHI ZHIZAO POWER SUPPLY CO LTD
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Patent Information

Application Number
CN202422812826.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-11-07
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

In existing power systems, disconnecting switches require manual operation, which is time-consuming and poses safety hazards, especially in severe weather or near high-voltage lines, and lack effective lightning and overcurrent protection measures.

Method used

A novel electric disconnect switch for high-voltage contact networks was designed, which adopts an electric operating mechanism, lightning rod and grounding electrode, combined with surge protector, circuit breaker and relay to realize automated operation and multiple electrical protections. The switch status can be directly controlled through the touch screen, providing fast response and safety protection.

Benefits of technology

It enables rapid response and automated operation of disconnect switches, reduces manual intervention, provides effective lightning and overcurrent protection, ensures the stability and safety of equipment and systems, and simplifies component installation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel strong current prevention catenary electric isolation switch, which belongs to the technical field of power equipment and comprises a vertical column and an isolation transformer, an electric operating mechanism box is mounted on the right side of the vertical column, a supporting insulator is arranged above the vertical column, the top of the supporting insulator is a conductive part, and a jumper wire is arranged in the middle of the supporting insulator. A lightning rod is installed on the jumper wire penetrating through the conductive part, and one end of the electric operating mechanism box is connected with the isolation transformer through an electric wire. Through the design of the electric operating mechanism box, the automatic operation of the isolating switch is realized. A user can directly control the state of the switch through the touch operation screen, manual intervention is reduced, and the operation efficiency is improved. And the controller converts a user instruction into a motion instruction of the motor in real time, so that quick response of the isolating switch is realized. The design of the supporting insulator and the conductive part ensures the stability during the operation of the isolating switch, so that the conduction or interruption process of the current is reliable.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric power equipment more particularly, relate to a new -type strong electricity contact network electric isolation switch. BACKGROUND

[0002] In modern power systems, isolation switches are one of the most critical components. They are used to isolate specific parts from the power supply in case of electrical line interruption, allowing maintenance or repair. In traditional operation, isolation switches usually require manual operation, which not only consumes time but also may pose safety hazards, especially when working in adverse weather conditions or near high-voltage lines.

[0003] In order to improve the efficiency and safety of operation, in recent years, electric isolation switches have gradually attracted attention. Through the introduction of electric operating mechanism, the state of isolation switch can be remotely controlled and automatically operated, thereby significantly reducing human intervention and operation errors. In addition, with the expansion of power grid scale and the complexity of power system, higher requirements are put forward for the intelligentization and automation of isolation switches to meet the operation needs of modern power system.

[0004] Lightning and overcurrent protection are also issues that need special attention in power systems. Lightning can cause serious damage to power equipment, while overcurrent can cause equipment overheating or damage. Therefore, in the design of isolation switches, it is particularly important to integrate effective lightning protection and overcurrent protection measures.

[0005] The utility model in the light of the deficiency of prior art, proposes a new -type strong electricity contact network electric isolation switch, through electric operating mechanism, lightning rod and grounding electrode multiple measures, provides a kind of efficient, safe and stable electric power isolation switch. SUMMARY

[0006] 1. Technical problem to be solved

[0007] In view of the problems existing in the prior art, the utility model aims to provide a new -type strong electricity contact network electric isolation switch, which can realize the rapid response of isolation switch, and users can directly control the state of switch through touch control operation screen, reducing manual intervention and improving operation efficiency.

[0008] 2. Technical scheme

[0009] To solve the above problems, the utility model adopts the following technical scheme.

[0010] The utility model provides a new type of strong electric contact network electric isolating switch, including vertical column and isolating transformer, electric operating mechanism box is installed to the right side of vertical column, the top of support insulator that is equipped with in the upper portion of vertical column is conductive part, jumper wire is equipped with in the middle of support insulator, the lightning rod is installed to the jumper wire through conductive part, and one end of electric operating mechanism box is connected with isolating transformer through electric wire.

[0011] According to the above features, the lower portion of the vertical column is provided with a grounding electrode.

[0012] In some embodiments, the electric operating mechanism box includes a box body, the front side of the box body is provided with a box cover, the surface of the box cover is provided with an operation screen, the inside of the electric operating mechanism box is provided with a surge protector, a circuit breaker and a relay.

[0013] According to the above features, the inside of the operation screen corresponding to the box cover is provided with a controller, and the side edge of the box body is provided with a hoop.

[0014] In some embodiments, the lightning rod is fixed by an inclined support plate, the lower portion of the inclined support plate is provided with a supporting plate, and the hoop is provided with a bracket.

[0015] According to the above features, the supporting plate is installed on the outside of the sleeve, and the operation screen is touchable.

[0016] 3. Advantages

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1) Through the design of the electric operating mechanism box, the automatic operation of the isolating switch is realized. Users can directly control the state of the switch through the touch operation screen, reducing manual intervention and improving operation efficiency. The controller converts the user's instructions into motor movement instructions in real time, realizing the rapid response of the isolating switch.

[0019] 2) The design of the lightning rod and the grounding electrode provides an effective lightning and strong current guide channel to avoid equipment damage. The design of the support insulator and the conductive part ensures the stability during the operation of the isolating switch, making the conduction or interruption process of the current reliable.

[0020] 3) The surge protector, circuit breaker and relay in the electric operating mechanism box work together to provide multiple electrical protection for the system. The combination of these components not only protects the equipment itself, but also ensures the stability of the entire power system.

[0021] 4) Through the design of the inclined support plate and the supporting plate, the installation and fixation of the lightning rod and other components become simpler, and the maintenance is also easier. The setting of the grounding electrode ensures that the system can quickly guide the current into the ground when overcurrent or lightning strikes occur, further protecting the safety of equipment and personnel.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view of a novel strong electric contact network electric isolation switch of the utility model;

[0023] Figure 2 It is a top view of a novel strong electric contact network electric isolation switch of the utility model;

[0024] Figures 3-4 It is an oblique view of a novel strong electric contact network electric isolation switch of the utility model;

[0025] Figures 5-6 It is a structural schematic view of the electric operating mechanism box of the utility model;

[0026] Figure 7 It is a structural schematic view of the lightning rod of the utility model;

[0027] Figure 8 It is a structural schematic view of the supporting plate of the utility model.

[0028] Mark explanation in the drawing:

[0029] 1, lightning rod; 101, inclined support plate; 102, supporting plate; 103, support; 2, conducting part; 3, supporting insulator; 4, jumper wire; 5, vertical column; 6, grounding pole; 7, isolation transformer; 8, electric operating mechanism box; 801, box cover; 802, operating screen; 803, surge protector; 804, clamp; 805, box body; 806, circuit breaker; 807, relay; 808, controller; 9, bushing. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] Please refer to Figures 1-8 A novel strong electric contact network electric isolation switch, including vertical column 5 and isolation transformer 7, vertical column 5 right side installs electric operating mechanism box 8, the top of vertical column 5 is equipped with supporting insulator 3, the top of supporting insulator 3 is conducting part 2, the middle of supporting insulator 3 is equipped with jumper wire 4, and lightning rod 1 is installed through conducting part 2 of jumper wire 4, one end of electric operating mechanism box 8 is connected with isolation transformer 7 through electric wire, and the lower side of vertical column 5 is equipped with grounding pole 6.

[0033] After the support insulator 3 is fixed above the vertical column 5, it can stably support the conductive part 2. During the operation of the disconnector, the conductive part 2 will move up and down with the movement of the vertical column 5, ensuring that the current can flow smoothly or be cut off when the switch state changes.

[0034] In some embodiments, the electric operating mechanism box 8 comprises a box body 805, the front side of the box body 805 is provided with a box cover 801, the surface of the box cover 801 is provided with an operation screen 802, the inside of the electric operating mechanism box 8 is provided with a surge protector 803, a circuit breaker 806 and a relay 807. The operation screen 802 is provided with a controller 808 corresponding to the inside of the box cover 801, and the side edge of the box body 805 is provided with a clamp 804.

[0035] The jumper wire 4 passes through the middle of the conductive part 2 and is connected with the lightning rod 1. When the lightning rod 1 senses strong current or lightning, the inclined support plate 101 will fix the lightning rod 1 in place through the supporting plate 102, ensuring that it can effectively guide the current into the ground and protect other equipment from damage. The grounding electrode 6 is located below the vertical column 5, which can provide a safe grounding channel during the operation of the disconnector.

[0036] In some embodiments, the lightning rod 1 is fixed by the inclined support plate 101, the supporting plate 102 is installed below the inclined support plate 101, and the bracket 103 is installed on the clamp 804. The supporting plate 102 is installed on the outside of the bushing 9, and the operation screen 802 is touchable.

[0037] Inside the electric operating mechanism box 8, the surge protector 803 will monitor the change of current and quickly cut off the circuit when detecting abnormal current to trigger the circuit breaker 806 for protection. The operation screen 802 is designed to be touchable, and users can directly issue instructions through the touch screen to control the working state of the electric operating mechanism box 8. The controller 808 will receive user instructions in real time and convert them into motor movement instructions to ensure the fast response of the disconnector.

[0038] Working principle:

[0039] The disconnector is composed of a vertical column, a support insulator, a conductive part, a jumper, a lightning rod, an electric operating mechanism box, an isolation transformer, and a grounding pole, to ensure the conduction or interruption of current. The support insulator is fixed above the vertical column and mainly used to support the conductive part, so that it can move up and down stably during the operation of the disconnector. By moving the conductive part, the conduction or interruption of current is realized. The electric operating mechanism box contains a surge protector, a circuit breaker, a relay, and a controller, which work together to control the operation of the disconnector. The operation screen is touch-controlled, and users can issue instructions through the screen. The controller converts these instructions into movement instructions for the motor, thereby realizing the rapid operation of the disconnector. The surge protector is responsible for monitoring the current changes. When abnormal current is detected, it will quickly respond, cut off the circuit and trigger the circuit breaker to protect the entire system from damage. The lightning rod is fixed by the inclined support plate and the supporting plate, which can effectively guide the lightning or strong current into the ground to avoid equipment damage. The grounding pole provides a safe grounding channel to ensure the safety of the system during operation. The circuit breaker and surge protector in the electric operating mechanism box provide additional electrical protection to ensure the safety and reliability of equipment operation.

[0040] The above is only the preferred specific implementation of the present application; however, the protection scope of the present application is not limited to this. Any skilled person in the art, within the technical range disclosed by the present application, according to the technical scheme and improvement concept of the present application, can be equivalent to replace or change, which should be covered in the protection scope of the present application.

Claims

1. A new type of strong current contact network electric disconnector comprising a vertical column (5) and an isolating transformer (7), characterized in that: The vertical column (5) is provided with an electric operating mechanism box (8) on the right side, and a support insulator (3) is arranged above the vertical column (5), the top of the support insulator (3) is a conductive part (2), a jumper wire (4) is arranged in the middle of the support insulator (3), and a lightning rod (1) is arranged on the jumper wire (4) penetrating through the conductive part (2), and one end of the electric operating mechanism box (8) is connected with an isolation transformer (7) through an electric wire.

2. A new type of high-voltage contact network electric isolation switch according to claim 1, characterized in that: A grounding electrode (6) is arranged below the vertical column (5).

3. A new type of strong current contact network electric isolation switch according to claim 1, characterized in that: The electric operating mechanism box (8) comprises a box body (805), the front side of the box body (805) is provided with a box cover (801), the surface of the box cover (801) is provided with an operation screen (802), and the inside of the electric operating mechanism box (8) is provided with an electric surge protector (803), a circuit breaker (806) and a relay (807).

4. A new type of strong current contact network electric isolation switch according to claim 3, characterized in that: The operation screen (802) is provided with a controller (808) corresponding to the inner side of the box cover (801), and the side edge of the box body (805) is provided with a hoop (804).

5. A new type of high-voltage contact line electric disconnector according to claim 4, characterized in that: The lightning rod (1) is fixed through an inclined supporting plate (101), the lower side of the inclined supporting plate (101) is provided with a supporting plate (102), and the hoop (804) is provided with a support (103).

6. A new type of high-voltage contact line electric disconnector according to claim 5, characterized in that: The supporting plate (102) is arranged on the outer side of a sleeve pipe (9), and the operation screen (802) is touchable.