CN102969175A - Static contact structure for three-station isolation and earth connection - Google Patents
Static contact structure for three-station isolation and earth connection Download PDFInfo
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- CN102969175A CN102969175A CN2012104745387A CN201210474538A CN102969175A CN 102969175 A CN102969175 A CN 102969175A CN 2012104745387 A CN2012104745387 A CN 2012104745387A CN 201210474538 A CN201210474538 A CN 201210474538A CN 102969175 A CN102969175 A CN 102969175A
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- static contact
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- horizontal part
- static
- touch plate
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Abstract
The invention discloses a static contact structure for a three-station isolation and earth connection. The static contact structure comprises a horizontal U-shaped static contact base, wherein the upper horizontal part and the lower horizontal part of the static contact base are respectively sleeved with a horizontal U-shaped movable touch plate; and one movable touch plate is fixed on the outer side of the upper horizontal part of the static contact base, and the inner side of the upper horizontal part of the static contact base pushes against the inner side of the movable touch plate through support springs in spring holes; and the other movable touch plate is fixed on the outer side of the lower horizontal part of the static contact base, and the inner side of the lower horizontal part of the static contact base pushes against the inner side of the movable touch plate through support springs in spring holes. The static contact structure provided by the invention has the beneficial effects that the problem of contact pressure nonuniformity and the problem of destruction on a silvered face of a movable contact caused by clamping stagnation when a watchband contacts a finger are solved, an assembly buffer area is added, sliding friction force during combination and separation of movable and static contacts is reduced so as to improve an electric field, and a contact surface between the movable and static contacts are enlarged so as to ensure that the separation and combination position is more accurate, the flow capacity of working current is improved, and electric stability and heat stability are improved in impact of short-circuit current.
Description
Technical field
The invention belongs to the high-voltage switch gear electric contact structure, relate to a kind of three stations isolation, earthy static contact structure.
Background technology
Present stage, the HGIS three stations isolation of 145kV and following electric pressure, ground connection main conductive circuit electrical contact design are embedded watchband-shaped contactor structure.This project organization difficulty of processing is large, electrically contact pressure inhomogeneous, do not have buffering area easily occur catching phenomenon, operating mechanism motor easily burn because operand power increases cause power grid accident and the processing and manufacturing cost is expensive, to the bad adaptability that the real work electric current changes, the electrodynamical stability during short-circuit current rush and thermal stability are not firm.
Summary of the invention
The present invention is in order to remedy the deficiencies in the prior art, provides that a kind of cost is low, simple and reliable for structure, the three stations isolation of being convenient to assemble, earthy static contact structure.
The present invention is achieved through the following technical solutions:
Three stations isolation of the present invention, earthy static contact structure, its special character is: the fixed contact pedestal that comprises the U-shaped that keeps flat, the upper level position of fixed contact pedestal and lower horizontal position are overlapped respectively horizontal U-shaped movable contact plate, upper level position and movable contact plate are fixed from the outside, the inboard of movable contact plate is withstood in inboard, upper level position by the support spring in the spring eye, the lower horizontal position is also fixed from the outside with the movable contact plate, and the inboard of movable contact plate is also withstood in inboard, lower horizontal position by the support spring in the spring eye.
Preferred version is that fixed contact pedestal inside has the groove that holds movable contact plate end.
The invention has the beneficial effects as follows, cost is low, simple and reliable for structure, be convenient to assembling, when having solved contact non-uniformity problem and watchband-shaped contactor and clamping stagnation destroys moving contact silvered face problem, increase the assembling buffering area, reduced that dynamic/static contact divides, the force of sliding friction when closing, version is more reasonable; Improved electric field, saved cost, increased the dynamic/static contact contact-making surface, minute, that co-bit is put is more accurate, has improved the operating current through-current capability, the electrodynamical stability when having strengthened short-circuit current rush and thermal stability.This design is mainly used in the isolation of HGIS three stations, the grounded part of 145kV and following electric pressure.
Description of drawings
Fig. 1-4 is followed successively by the vertical view of cutting open of front view that tradition embeds watchband-shaped contactor formula fixed contact, left view, rearview, left view.Fig. 5-7 is followed successively by front view of the present invention, left view, rearview.
Among the figure: 1 fixed contact pedestal, 2 support springs, 3 screws, 4 movable contact plates, 5 watchband-shaped contactors.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Three stations isolation of the present invention, earthy static contact structure, the fixed contact pedestal 1 that comprises the U-shaped that keeps flat, the upper level position of fixed contact pedestal and lower horizontal position are overlapped respectively horizontal U-shaped movable contact plate 4, upper level position and movable contact plate are fixed from the outside by screw 3, the inboard of movable contact plate is withstood in inboard, upper level position by the support spring 2 in the spring eye, the lower horizontal position is also fixed from the outside by screw 3 with the movable contact plate, and the inboard of movable contact plate is also withstood in inboard, lower horizontal position by the support spring 2 in the spring eye.There is the groove that holds movable contact plate end fixed contact pedestal inside.
Three stations isolation of the present invention, earthy static contact structure belong to the high-voltage switch gear electric contact structure.Mainly consisted of by fixed contact pedestal, support spring, screw (M6 * 20 jackscrews) and movable contact plate; Upper level position and movable contact plate are fixed from the outside by above-mentioned screw 3, the lower horizontal position is also fixed from the outside by above-mentioned screw with the movable contact plate, 2 movable contact plates are supported and 4 screw 3(M6 * 20 jackscrews by 4 support springs 2 separately in this design) locking, and with relaxation power, form a structure that is equivalent to the watchband-shaped contactor assembling.When having solved contact non-uniformity problem and watchband-shaped contactor and clamping stagnation destroys moving contact silvered face problem, increase the assembling buffering area, reduced that dynamic/static contact divides, the force of sliding friction when closing, version is more reasonable; Improved electric field, saved cost, increased the dynamic/static contact contact-making surface, minute, that co-bit is put is more accurate, has improved the operating current through-current capability, the electrodynamical stability when having strengthened short-circuit current rush and thermal stability.This design is mainly used in the isolation of HGIS three stations, the grounded part of 145kV and following electric pressure.
Claims (2)
1. station isolation, earthy static contact structure, it is characterized in that: the fixed contact pedestal that comprises the U-shaped that keeps flat, the upper level position of fixed contact pedestal and lower horizontal position are overlapped respectively horizontal U-shaped movable contact plate, upper level position and movable contact plate are fixed from the outside, the inboard of movable contact plate is withstood in inboard, upper level position by the support spring in the spring eye, the lower horizontal position is also fixed from the outside with the movable contact plate, and the inboard of movable contact plate is also withstood in inboard, lower horizontal position by the support spring in the spring eye.
2. three stations according to claim 1 isolation, earthy static contact structure, it is characterized in that: there is the groove that holds movable contact plate end fixed contact pedestal inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104745387A CN102969175A (en) | 2012-11-21 | 2012-11-21 | Static contact structure for three-station isolation and earth connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104745387A CN102969175A (en) | 2012-11-21 | 2012-11-21 | Static contact structure for three-station isolation and earth connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102969175A true CN102969175A (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104745387A Pending CN102969175A (en) | 2012-11-21 | 2012-11-21 | Static contact structure for three-station isolation and earth connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102969175A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614754A (en) * | 2020-12-10 | 2021-04-06 | 平高集团有限公司 | Handcart type direct current circuit breaker and connecting contact thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11149840A (en) * | 1997-11-13 | 1999-06-02 | Energy Support Corp | Electrode for switch |
| CN2572539Y (en) * | 2002-09-28 | 2003-09-10 | 杜乐田 | Outdoor high voltage isolating switch |
| CN202454444U (en) * | 2012-02-22 | 2012-09-26 | 山东兴驰高压开关有限公司 | Fixed contact structure |
| CN202977181U (en) * | 2012-11-21 | 2013-06-05 | 山东兴驰高压开关有限公司 | Static contact structure for three-station isolation and earth connection |
-
2012
- 2012-11-21 CN CN2012104745387A patent/CN102969175A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11149840A (en) * | 1997-11-13 | 1999-06-02 | Energy Support Corp | Electrode for switch |
| CN2572539Y (en) * | 2002-09-28 | 2003-09-10 | 杜乐田 | Outdoor high voltage isolating switch |
| CN202454444U (en) * | 2012-02-22 | 2012-09-26 | 山东兴驰高压开关有限公司 | Fixed contact structure |
| CN202977181U (en) * | 2012-11-21 | 2013-06-05 | 山东兴驰高压开关有限公司 | Static contact structure for three-station isolation and earth connection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614754A (en) * | 2020-12-10 | 2021-04-06 | 平高集团有限公司 | Handcart type direct current circuit breaker and connecting contact thereof |
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Application publication date: 20130313 |