Isolating switch
By extending the housing axis vertically in the isolation switch and the insulating partition vertically arrange the insulating partition, the electric field deterioration caused by the fall of foreign objects is solved, the flashover phenomenon is avoided, and the service life of the equipment is improved.
Patent Information
- Application Number
- CN202420012382.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-03
AI Technical Summary
In the existing isolating switch, foreign objects are generated due to the friction between the moving contact and the conductive base, resulting in the deterioration of the electric field of the insulating partition along the moving end or static end, which in severe cases causes the flickering phenomenon along the edge.
By extending the axis of the housing in a vertical direction and the insulating partitions of the moving end and the static end are arranged vertically, foreign matters are prevented from falling on the insulating partitions, ensuring that the electric field is not disturbed.
It effectively avoids the fall of foreign objects on the insulating partition, prevents flashover and improves the service life of the isolating switch.
Smart Images
Figure CN222320061U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of gas isolating switch devices, in particular to an isolating switch. Background Art
[0002] With the continuous increase of electricity consumption by Chinese residents, the number of substations is also increasing. Among them, GIS (gas insulated metal switchgear) is an indispensable part of substations. GIS generally includes busbars, circuit breakers, disconnectors, grounding switches, voltage transformers, current transformers, lightning arresters and other structures. Among them, disconnectors are a must-have component of GIS.
[0003] like Figure 1 As shown, the disconnector includes a housing 1, on which a cover plate 2, an operating mechanism 3, a moving end insulating partition 5 and a static end insulating partition 6 are installed, wherein the moving end insulating partition 5 is arranged horizontally, and a conductive seat is arranged above the moving end insulating partition 5, in which a moving contact capable of slidingly cooperating with the conductive seat along the axial guide of the housing 1 is installed, the operating mechanism 3 is connected to the moving contact through a transmission rod 4, a static contact is arranged on the static end insulating partition 6, and the static end insulating partition 6 is vertically arranged on one side of the housing 1 along the axial direction of the housing 1. By controlling the operating mechanism 3, the operating mechanism 3 can drive the moving contact to move through the transmission rod 4, thereby realizing the contact or separation of the moving contact and the static contact, and realizing the circuit breaking.
[0004] During the long-term use of the above-mentioned disconnector, since the moving contact needs to move, friction will occur between the conductive seat and the moving contact, thereby generating foreign matter. Since the conductive seat is located above the moving end insulating partition 5, when the foreign matter falls on the moving end insulating partition 5 under the action of gravity, it will cause the surface electric field of the moving end insulating partition 5 to deteriorate, and in severe cases, it will cause surface flashover phenomenon. At the same time, even if the axis of the shell 1 is extended in the vertical direction and the static end insulating partition 6 is located at the upper part of the shell 1 (at this time), the static end insulating partition 6 is located at the upper part of the shell 1. The static end insulating partition 6 is arranged horizontally), the moving end insulating partition 5 and the static end insulating partition 6 are connected to the busbar tube at one end away from the moving contact. When the busbar tube is installed, maintained or working normally, foreign matter will be generated in the busbar tube (generally a particle catcher is added to the busbar tube to catch foreign matter). If the foreign matter in the busbar tube falls to the moving end insulating partition 5 or the static end insulating partition 6, it will also cause the surface electric field of the moving end insulating partition 5 or the static end insulating partition 6 to deteriorate, and in severe cases, it will cause surface flashover. Utility Model Content
[0005] The purpose of the utility model is to provide a disconnector to solve the technical problem in the prior art that due to the horizontal arrangement of the moving end insulating partition or the static end insulating partition, foreign matter generated by the friction between the conductive seat and the moving contact or foreign matter generated in the corresponding busbar tube will fall on the moving end insulating partition or the static end insulating partition, resulting in the degradation of the surface electric field of the insulating partition, and in severe cases, causing surface flashover phenomenon.
[0006] To achieve the above purpose, the technical solution of the isolating switch provided by the utility model is:
[0007] A disconnector comprises a shell, on which a moving end insulating partition and a static end insulating partition are arranged, the moving end insulating partition is provided with a conductive seat for slidingly cooperating with a moving contact along the axial guide of the shell, the static end insulating partition is provided with a static contact, the axis of the shell extends in a vertical direction, the moving end insulating partition is arranged vertically, and the static end insulating partition is also arranged vertically.
[0008] Furthermore, the moving end insulating partition and the static end insulating partition are respectively arranged on two sides of the shell.
[0009] Furthermore, a static end support seat is provided on the static end insulating partition, the static contact is connected to one end of the static end support seat away from the static end insulating partition, and the static end support seat is connected to the side of the static contact.
[0010] Furthermore, a hand hole and a corresponding cover plate are provided on the shell.
[0011] Furthermore, the hand hole is arranged at one end of the shell along the axial direction of the shell.
[0012] The beneficial effects of the isolating switch in the utility model are as follows: the utility model is an improved invention. The moving contact can be guided by the conductive seat so that the moving contact moves along the axial direction of the shell, cooperates with the static contact and completes the opening and closing of the switch; by extending the axis of the shell in the vertical direction, and arranging the moving end insulating partition and the static end insulating partition vertically, on the one hand, since the axis of the shell extends in the vertical direction, when the moving contact and the conductive seat rub and generate foreign matter, under the action of gravity, the foreign matter will fall to the bottom of the shell and will not fall on the vertically arranged insulating partition; on the other hand, since the insulating partition is arranged vertically, the busbar connected to the corresponding insulating partition is arranged horizontally, so the foreign matter generated in the busbar will not fall on the insulating partition. Finally, it is ensured that foreign matter will not fall on the insulating partition, the electric field of the insulating partition is not disturbed, the surface flashover phenomenon is avoided, and the service life of the isolating switch is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of an isolating switch in the prior art;
[0014] Figure 2It is a structural schematic diagram of the isolating switch in the utility model.
[0015] Description of reference numerals:
[0016] 1. Shell; 2. Cover plate; 3. Operating mechanism; 4. Transmission rod; 5. Insulating partition at the moving end; 6. Insulating partition at the static end. DETAILED DESCRIPTION
[0017] The present invention is further described in detail below in conjunction with the embodiments.
[0018] The specific embodiment of the isolating switch provided by the utility model:
[0019] The purpose of this embodiment is to provide an isolating switch that can prevent foreign objects from falling on the insulating partition. By extending the axis of the shell in the vertical direction and arranging the insulating partition vertically, it can be ensured that foreign objects will not fall on the insulating partition, ensure that the electric field of the insulating partition is not disturbed, avoid surface flashover, and increase the service life of the isolating switch.
[0020] like Figure 2 As shown, as a specific embodiment, the disconnector includes a housing 1, on which a moving end insulating partition 5 and a static end insulating partition 6 are provided, the moving end insulating partition 5 is provided with a conductive seat for slidingly cooperating with the moving contact along the axial guide of the housing 1, the static end insulating partition 6 is provided with a static contact, the moving end insulating partition 5 is arranged vertically, the axis of the housing 1 extends in the vertical direction, and the static end insulating partition 6 is also arranged vertically. Specifically, two mounting interfaces are provided on the circumferential surface of the housing 1, and the moving end insulating partition 5 and the static end insulating partition 6 are respectively arranged vertically on the two mounting interfaces.
[0021] Specifically, the housing 1 is further provided with an operating mechanism 3, which controls the moving contact to move along the axial direction of the housing 1 through a transmission rod 4; a static contact is provided on the static end insulating partition 6, and the operating mechanism 3 controls whether the moving contact is in contact with the static contact. However, in other specific embodiments, the moving contact and the conductive seat can also be controlled to slide along the axial direction of the housing 1 in any manner in the isolating switch in the prior art.
[0022] The moving contact can be guided by the conductive seat so that the moving contact moves along the axial direction of the housing 1; by extending the axis of the housing 1 in the vertical direction and arranging the moving end insulating partition 5 and the static end insulating partition 6 vertically, on the one hand, since the axis of the housing 1 extends in the vertical direction, when foreign matter is generated by friction between the moving contact and the conductive seat, the foreign matter falls to the bottom of the housing 1 under the action of gravity and will not fall on the vertically arranged insulating partition; on the other hand, since the moving end insulating partition 5 and the static end insulating partition 6 are arranged vertically, the busbar barrel connected to the corresponding insulating partition is arranged horizontally, so the foreign matter generated in the busbar barrel will not fall on the insulating partition. Finally, it is ensured that foreign matter will not fall on the insulating partition, the electric field of the insulating partition is not disturbed, the surface flashover phenomenon is avoided, and the service life of the disconnector is increased.
[0023] like Figure 2 As shown, in order to facilitate the connection of busbar barrels and other structures on the disconnector, as a specific implementation method, the moving end insulating partition 5 and the static end insulating partition 6 are respectively arranged on both sides of the shell 1, so as to facilitate the connection of the busbar barrel on both sides of the shell 1, so as to avoid the incoming busbar barrel and the outgoing busbar barrel of the disconnector being connected to one end of the disconnector, and avoid the incoming busbar barrel and the outgoing busbar barrel of the disconnector interfering with each other.
[0024] However, in other specific embodiments, the moving end insulating partition 5 and the static end insulating partition 6 can also be arranged on one side of the shell 1, and the interference between the incoming busbar barrel and the outgoing busbar barrel of the disconnector can be avoided by increasing the axial length of the shell 1.
[0025] like Figure 2 As shown, as a specific embodiment, a static end support seat is provided on the static end insulating partition 6, and the static contact is connected to the end of the static end support seat away from the static end insulating partition 6, and the static end support seat is connected to the side of the static contact. The static contact can be conveniently fixed by the static end support seat. However, in other specific embodiments, the static end support seat can also be connected to the end of the static contact away from the moving contact.
[0026] like Figure 2 As shown, in order to facilitate the assembly of the isolating switch, as a specific embodiment, a hand hole and a corresponding cover plate 2 are provided on the housing 1. By opening the cover plate 2, the operator's hand can be inserted into the isolating switch through the hand hole, thereby facilitating the assembly of the isolating switch. However, in other specific embodiments, the hand hole may not be provided, and the operator's hand may be inserted into the mounting holes of the active end insulating partition 5 and the static end insulating partition 6 to facilitate the assembly of the isolating switch; or, the isolating switch may be modularized and directly assembled, which is a prior art and will not be described in detail here.
[0027] As a specific implementation, the hand hole is provided at one end of the housing 1 along the axial direction of the housing 1. Of course, in other specific implementations, the hand hole may also be provided on the outer peripheral surface of the housing 1.
[0028] Finally, it should be noted that the above are only preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A disconnector, comprising a housing, a moving end insulating partition and a static end insulating partition are provided on the housing, a conductive seat is provided on the moving end insulating partition for slidingly cooperating with the moving contact along the axial guide of the housing, a static end insulating partition is provided on the static end insulating partition, the axis of the housing extends in the vertical direction, the moving end insulating partition is arranged vertically, and is characterized in that: The static end insulating partition is also arranged vertically.
2. The isolating switch according to claim 1, characterized in that: The moving end insulating partition and the static end insulating partition are arranged on both sides of the shell.
3. The isolating switch according to claim 1 or 2, characterized in that: A static end support seat is arranged on the static end insulating partition, the static contact is connected to one end of the static end support seat away from the static end insulating partition, and the static end support seat is connected to the side surface of the static contact.
4. The isolating switch according to claim 1 or 2, characterized in that: The shell body is provided with a hand hole and a corresponding cover plate.
5. The isolating switch according to claim 4, characterized in that: The hand hole is arranged at one end of the shell along the axial direction of the shell.