CN220439421U - Novel ground loop conductive structure - Google Patents
Novel ground loop conductive structure Download PDFInfo
- Publication number
- CN220439421U CN220439421U CN202321984732.XU CN202321984732U CN220439421U CN 220439421 U CN220439421 U CN 220439421U CN 202321984732 U CN202321984732 U CN 202321984732U CN 220439421 U CN220439421 U CN 220439421U
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- China
- Prior art keywords
- grounding
- contact seat
- movable contact
- conductive structure
- seat
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- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 239000003463 adsorbent Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model belongs to the technical field of power switching equipment, and particularly relates to a novel grounding loop conductive structure. The novel grounding loop conductive structure comprises a grounding switch shell, wherein a movable contact seat and a static contact seat are arranged in the grounding switch shell, and the novel grounding loop conductive structure is characterized in that: the movable contact seat and the static contact seat are connected with each other, a chromium-zirconium-copper spring contact finger is arranged between the movable contact seat and the movable contact seat, the top end of the movable contact seat is connected with the guide rod, and the movable contact seat is connected with the grounding handle through the grounding copper bar. The beneficial effects of the utility model are as follows: the adopted multi-contact chromium-zirconium-copper spring contact finger is good in strength and hardness, and the spring contact finger cannot be deformed in the moving process of the moving contact, so that the moving contact has high stability; the grounding switch has the advantages of simple structure, reliable performance, easy manufacture, low production cost, market competitiveness for products and capability of meeting various performance requirements of the quick grounding switch, and improves the production and assembly efficiency of workshops.
Description
Technical Field
The utility model belongs to the technical field of power switching equipment, and particularly relates to a novel grounding loop conductive structure.
Background
From the application scheme of the 252kV combined electrical appliance system, when the misoperation is caused when the grounding wire on the line is not cleared or the grounding fault is generated on the line at the moment of closing the quick grounding switch, the quick grounding switch needs to accurately and reliably cut off the line fault, and the quick grounding switch of the 252kV combined electrical appliance needs to have the capability requirements of 125kA and 2 times of short circuit closing and can bear the capability of dynamic and thermal stability. In addition, when the multi-loop parallel arrangement of the substation combined electrical appliance and the quick grounding switch are utilized to switch on or switch off the power failure line, due to electromagnetic induction and electrostatic induction effects between the power failure line and the adjacent live line, induced currents with different characteristics flow between contact breaks of the quick grounding switch, and the quick grounding switch has corresponding switching-on and switching-off capability. How to ensure the accurate and successful disconnection of the combined electrical appliance when the line is in fault becomes a difficult problem to be solved immediately.
Disclosure of Invention
The utility model provides a novel grounding loop conductive structure with simple structure, reliable performance and high assembly efficiency, which overcomes the defects of the prior art.
The utility model is realized by the following technical scheme:
the utility model provides a novel ground return circuit conductive structure, includes the earthing switch shell, installs movable contact seat and static contact seat in the earthing switch shell, characterized by: the movable contact seat and the static contact seat are connected with each other, a chromium-zirconium-copper spring contact finger is arranged between the movable contact seat and the movable contact seat, the top end of the movable contact seat is connected with the guide rod, and the movable contact seat is connected with the grounding handle through the grounding copper bar.
An insulating plate is arranged between the movable contact seat and the grounding switch shell.
And an adsorbent cover is arranged outside the guide rod.
The beneficial effects of the utility model are as follows: the adopted multi-contact chromium-zirconium-copper spring contact finger is good in strength and hardness, and the spring contact finger cannot be deformed in the moving process of the moving contact, so that the moving contact has high stability; the grounding switch has the advantages of simple structure, reliable performance, easy manufacture, low production cost, market competitiveness for products and capability of meeting various performance requirements of the quick grounding switch, and improves the production and assembly efficiency of workshops.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a chromium-zirconium-copper spring contact finger mounting structure of the present utility model;
in the figure, a grounding switch shell, a movable contact seat, a fixed contact seat, a movable conducting rod, a 5 chromium zirconium copper spring contact finger, a 6 guide rod, a 7 grounding copper bar, an 8 grounding handle, a 9 insulating plate and a 10 adsorbent cover are arranged.
Detailed Description
The drawings illustrate one embodiment of the utility model. The embodiment comprises a grounding switch shell 1, wherein a movable contact seat 2 and a static contact seat 3 are arranged in the grounding switch shell 1, a movable conducting rod 4 is connected between the movable contact seat 2 and the static contact seat 3, a chromium-zirconium-copper spring contact finger 5 is arranged between the movable contact seat 2 and the movable conducting rod 4, the top end of the movable conducting rod 4 is connected with a guide rod 6, and the movable contact seat 2 is connected with a grounding handle 8 through a grounding copper bar 7. An insulating plate 9 is arranged between the movable contact seat 2 and the grounding switch shell 1. The adsorbent cover 10 is arranged outside the guide rod 6.
By adopting the novel grounding loop conductive structure, the static contact on the static contact seat 3 adopts a plum blossom contact finger structure, the moving contact on the moving contact seat 2 adopts a spring contact structure, the contact finger material adopts a chromium zirconium copper (CrZrCu) material with conductivity up to 75% IACS, the material has higher strength and hardness, the conductivity and the thermal conductivity are excellent, the grounding copper bar 7 adopts a red copper bar with larger sectional area, and the performance requirements of the quick grounding switch are completely met. The movable conducting rod 4 realizes vertical motion through the limiting of the guide sleeve, the side of the movable contact adopts a chromium zirconium copper spring contact finger 5, and a multi-contact spring contact finger groove is formed in the movable contact seat 2, so that point contact is ensured. The grounding switch body drives the guide rod 6 to realize the vertical motion of the movable conducting rod 4 through the transmission of the mechanism. The end part of the movable contact seat 2 is connected with the grounding handle 8 through the grounding copper bar 7, and the spring contact finger of the movable contact seat 2 is slotted to avoid the joint of the movable conductive rod 4 and the vacuum impregnation, so that insufficient through flow caused by current density shrinkage is prevented. The quick grounding mechanism arranged on the grounding switch shell 1 is used for driving, a motor, an energy storage spring, a worm gear and worm drive and the like are respectively arranged on the mechanism, an output shaft of the mechanism is connected with a transmission shaft of the body, and three phases are operated in a linkage way. The transmission crank arm drives the movable conducting rod 4 in the switch body to realize vertical motion through the limit of the guide sleeve, so that the switch body achieves the aim of closing and separating.
Claims (3)
1. The utility model provides a novel ground return circuit conductive structure, includes earthing switch shell (1), installs movable contact seat (2) and static contact seat (3), characterized by in earthing switch shell (1): the electric contact device is characterized in that a movable conducting rod (4) is connected between the movable contact seat (2) and the static contact seat (3), a chromium-zirconium-copper spring contact finger (5) is arranged between the movable contact seat (2) and the movable conducting rod (4), the top end of the movable conducting rod (4) is connected with a guide rod (6), and the movable contact seat (2) is connected with a grounding handle (8) through a grounding copper bar (7).
2. The novel ground return circuit conductive structure of claim 1, wherein: an insulating plate (9) is arranged between the movable contact seat (2) and the grounding switch shell (1).
3. The novel ground return circuit conductive structure of claim 1, wherein: an adsorbent cover (10) is arranged outside the guide rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321984732.XU CN220439421U (en) | 2023-07-27 | 2023-07-27 | Novel ground loop conductive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321984732.XU CN220439421U (en) | 2023-07-27 | 2023-07-27 | Novel ground loop conductive structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220439421U true CN220439421U (en) | 2024-02-02 |
Family
ID=89704006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321984732.XU Active CN220439421U (en) | 2023-07-27 | 2023-07-27 | Novel ground loop conductive structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220439421U (en) |
-
2023
- 2023-07-27 CN CN202321984732.XU patent/CN220439421U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |