CN214898226U - Load switch with fully-insulated visible fracture - Google Patents
Load switch with fully-insulated visible fracture Download PDFInfo
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- CN214898226U CN214898226U CN202120577055.4U CN202120577055U CN214898226U CN 214898226 U CN214898226 U CN 214898226U CN 202120577055 U CN202120577055 U CN 202120577055U CN 214898226 U CN214898226 U CN 214898226U
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Abstract
The utility model relates to a SF6 load switch especially relates to a load switch of visible fracture of full insulation. The switch comprises a box body, a switch assembly and an incoming and outgoing line insulation sleeve assembly. A switch assembly is arranged in the box body; the box body is filled with SF6 gas. The box body is provided with a large window, and the incoming and outgoing line insulating sleeve pipe assemblies are arranged on two sides of the box body in a sealing mode. When the load switch is in a use state, the large window is arranged on the downward surface of the box body. The beneficial effects of the utility model reside in that: when the switch assembly is maintained and maintained in a charged state, an operator can clearly see the on and off states of the load switch in the switch assembly and compares the on and off states with the arrow to confirm whether the switch assembly is safe or not, and safety accidents can be effectively avoided.
Description
Technical Field
The utility model relates to a SF6 load switch especially relates to a load switch of visible fracture of full insulation.
Background
The safety power supply requirement of the modern society on a power system is higher and higher, and an overhead power transmission line is an important component in a distribution network line. Therefore, many cities have made insulation transformation on overhead transmission lines. The improved power transmission line uses a large number of overhead insulated conductors, so that the reliability of a distribution network line is improved, and a foundation is laid for live working.
In the prior art, a load switch is roughly divided into three forms of epoxy resin solid insulation, a gas chamber sealed arc extinguish chamber and an isolation switch. The epoxy resin solid insulation and air chamber sealed arc-extinguishing chamber is mainly applied to a product which is cut off by a vacuum arc-extinguishing chamber. Due to the problems of materials and gas pressure, the fracture of the switch cannot be seen, and the state of the switch can be judged only according to an external indication arrow. If the direction indicated by the arrow does not correspond to the actual state of the switch, the operator is given wrong information, and therefore, a safety hazard exists. However, if the load switch of the isolation knife switch is adopted, although the switch fracture can be visually seen, the uninsulated contact is exposed in the air, and absolute safety cannot be achieved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a load switch with a fully-insulated visible fracture, which comprises a box body, a switch component and an incoming and outgoing line insulating sleeve component; a switch assembly is arranged in the box body; the box body is filled with SF6 gas; the method is characterized in that: the box body is provided with a large window, and the wire inlet and outlet insulating sleeve pipe assemblies are hermetically arranged on two sides of the box body; when the load switch is in a use state, the large window is arranged on the downward surface of the box body and corresponds to the fracture position; in addition, the switch assembly comprises an arc extinguish chamber, wherein the arc extinguish chamber adopts a transparent shell, and the 'separating' and 'closing' states of the contacts can be clearly seen.
The shortest distance from the center position of the interphase fracture of the switch assembly to the front edge of the large window is a first length, the shortest distance from the center position of the interphase fracture of the switch assembly to the rear edge of the large window is a second length, an included angle formed by the first length and the second length is a first included angle, and the minimum value of the first included angle is 50 degrees.
The mounting structure of big window does: a large viewing window is arranged on the downward surface of the box body, and the position of the large viewing window corresponds to the position of the fracture; the large window is composed of a large window pressing plate, a large window transparent plate and a large window sealing gasket; the large window pressing plate fixes the large window transparent plate and the large window sealing gasket at the positions corresponding to the large window and the fracture in sequence by bolts.
The shape of the large-window transparent plate is rectangular.
The large-window transparent plate is made of polycarbonate transparent materials.
The one side upwards of box still is equipped with the small view window that is used for the printing opacity and corresponds with the fracture position to and the small window that corresponds the setting with the small view window.
The shortest distance from the center position of the interphase fracture of the switch assembly to the front edge of the small viewing window is a third length, the shortest distance from the center position of the interphase fracture of the switch assembly to the rear edge of the small viewing window is a fourth length, an included angle formed by the third length and the fourth length is a second included angle, and the minimum value of the second included angle is 30 degrees.
The small window is provided with a small window, and the small window is composed of a small window pressing plate, a small window transparent plate and a small window sealing gasket; the small window pressing plate fixes the small window transparent plate and the small window sealing gasket on the upward surface of the box body through bolts in sequence.
The shape of the small window transparent plate is circular.
The transparent plate of the small window is made of polycarbonate transparent material.
The beneficial effects of the utility model reside in that: under the user state, the utility model discloses install on the post, and big window is downward. When the switch assembly is in electrified maintenance, an operator can clearly see the on and off states of the load switch in the switch assembly through the large window and compares the on and off states with the arrow to confirm whether the switch assembly is safe or not, and safety accidents can be effectively avoided. Meanwhile, the visible fracture is completely sealed, and the safety of the live-line operators is guaranteed by the full-insulation design. When sunlight enters the box body through the small window, an operator can see the sunlight more clearly.
Drawings
FIG. 1: is a bottom view of the first embodiment of the utility model;
FIG. 2: is a front view of a large window;
FIG. 3: is a bottom view of the large window;
FIG. 4: is a top view of the second embodiment of the present invention;
FIG. 5: is a front view of a small window;
FIG. 6: is a top view of the small window;
FIG. 7: the position structure schematic diagram of the first included angle and the second included angle is shown;
FIG. 8: the 'on' and 'off' state schematic diagram of the totally-enclosed transparent shell arc-extinguishing chamber.
Reference numerals: the device comprises a box body 1, a switch assembly 2, an incoming and outgoing line insulation sleeve assembly 3, a large window 4, a large window pressing plate 41, a large window transparent plate 42, a large window sealing gasket 43, a small window 5, a small window pressing plate 51, a small window transparent plate 52, a small window sealing gasket 53, a first length L1, a second length L2, a third length L3, a fourth length L4, a first angle of angle 1 and a second angle of angle 2.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further explained with reference to the accompanying drawings, so as to fully understand the objects, features and effects of the present invention.
Example 1:
the utility model provides a load switch of full insulation visible fracture, please refer to fig. 1-3. The switch comprises a box body 1, a switch component 2 and an incoming and outgoing line insulating sleeve component 3; a switch component 2 is arranged in the box body 1; the box body 1 is filled with SF6 gas. The box body 1 is provided with a large window 4, and the incoming and outgoing line insulating sleeve pipe assemblies 3 are hermetically arranged on two sides of the box body 1. In addition, the switch assembly comprises an arc extinguish chamber, the arc extinguish chamber is a gas chamber with a contact separated and combined, a totally-enclosed transparent shell is adopted, and the separated and combined states of the contact, namely the fracture state, can be clearly seen outside the arc extinguish chamber;
under the user state, the utility model discloses install on the post, be equipped with big window of looking at in the one side downwards of box 1, and the position of big window of looking corresponds with the fracture position. The large window 4 is also arranged on the downward surface of the box body 1, and the large window 4 is composed of a large window pressing plate 41, a large window transparent plate 42 and a large window sealing gasket 43.
The large window pressing plate 41, the large window transparent plate 42 and the large window sealing gasket 43 are sequentially fixed on the outer side of the large window of the box body 1 in a spiral manner. As shown in fig. 7, when the load switch is installed on the pole, the three phases of the switch can be clearly seen under the pole in the 'on' and 'off' states; the large window 4 is a rectangle of 150mm × 200mm, that is, the shortest distance from the center position of the interphase break of the switch assembly 2 to the front edge of the large window 4 is a first length L1, the shortest distance from the center position of the interphase break of the switch assembly 2 to the rear edge of the large window 4 is a second length L2, an included angle formed by the first length L1 and the second length L2 is a first included angle × 1, and the minimum value of the first included angle × 1 is 50 °. In order to ensure good physical property, mechanical property, thermal property, electrical property and flame retardant property of the large window 4, and according to the position and outline size of a fracture contact, the large window transparent plate 42 is made of a rectangular polycarbonate transparent material.
Example 2:
in order to see the "on" and "off" states of the fracture contact more clearly, a lighting window needs to be added, as a preferred solution of the present invention, see fig. 4 to 6. Under the user state, the utility model discloses install on the post, the ascending one side of box 1 is equipped with and is used for the non-light tight, and the small sight window that corresponds with the fracture position. The small window 5 is arranged outside the small window of the box body 1. The small window 5 is composed of a small window pressing plate 51, a small window transparent plate 52 and a small window sealing gasket 53. The small view window pressing plate 51, the small view window transparent plate 52 and the small view window sealing gasket 53 are sequentially fixed on the outer side of the small view window of the box body 1 through bolts in a sealing mode from top to bottom.
In order to ensure the physical property, mechanical property, thermal property, electrical property and flame retardant property of the small window 5 and achieve the purpose of increasing lighting, the purpose of clearly seeing the 'on' and 'off' states of fracture contacts through the large window 4 is realized, and the small window transparent plate 52 is made of a circular polycarbonate transparent material.
Because the small window 5 is used for increasing the lighting, the area of the small window 5 does not need to be too large, and the area of the small window 5 is smaller than that of the large window 4. However, in order to provide sufficient light inside the box, as shown in fig. 7, the shortest distance from the center position of the interphase break of the switch assembly 2 to the front edge of the small viewing window 5 is a third length L3, the shortest distance from the center position of the interphase break of the switch assembly 2 to the rear edge of the small viewing window 5 is a fourth length L4, the included angle formed by the third length L3 and the fourth length L4 is a second included angle ≦ 2, and the minimum value of the second included angle ≦ 2 is 30 °.
Claims (10)
1. A load switch with a fully-insulated visible fracture comprises a box body (1), a switch assembly (2) and an incoming and outgoing line insulating sleeve assembly (3); a switch component (2) is arranged in the box body (1); the box body (1) is filled with SF6 gas; the method is characterized in that: the box body (1) is provided with a large window (4), and the incoming and outgoing line insulating sleeve pipe assemblies (3) are hermetically arranged on two sides of the box body (1); when the load switch is in a use state, the large window (4) is arranged on the downward surface of the box body (1) and corresponds to the position of the fracture; in addition, the switch assembly comprises an arc extinguish chamber, wherein the arc extinguish chamber adopts a transparent shell, and the 'separating' and 'closing' states of the contacts can be clearly seen.
2. The load switch of the visible fracture of full insulation of claim 1, characterized in that: the shortest distance from the center position of the interphase fracture of the switch assembly (2) to the front edge of the large window (4) is a first length (L1), the shortest distance from the center position of the interphase fracture of the switch assembly (2) to the rear edge of the large window (4) is a second length (L2), an included angle formed by the first length (L1) and the second length (L2) is a first included angle (angle 1), and the minimum value of the first included angle (angle 1) is 50 degrees.
3. The load switch of the visible fracture of full insulation of claim 1, characterized in that: the mounting structure of the large window (4) is as follows: a large viewing window is arranged on the downward surface of the box body (1), and the position of the large viewing window corresponds to the fracture position; the large window (4) consists of a large window pressing plate (41), a large window transparent plate (42) and a large window sealing gasket (43); the large window pressing plate (41) fixes the large window transparent plate (42) and the large window sealing gasket (43) at the positions corresponding to the large window and the fracture in sequence by bolts.
4. The load switch of the visible fracture of full insulation of claim 3, characterized in that: the shape of the large window transparent plate (42) is rectangular.
5. The load switch of the visible fracture of full insulation of claim 3, characterized in that: the large-window transparent plate (42) is made of polycarbonate transparent material.
6. The load switch of the visible fracture of full insulation of claim 1, characterized in that: the box body (1) is characterized in that a small view window which is used for transmitting light and corresponds to the fracture position and a small view window (5) which corresponds to the small view window are further arranged on the upward surface of the box body.
7. The load switch of the visible fracture of full insulation of claim 6, characterized in that: the shortest distance from the center position of the interphase fracture of the switch assembly (2) to the front edge of the small viewing window (5) is a third length (L3), the shortest distance from the center position of the interphase fracture of the switch assembly (2) to the rear edge of the small viewing window (5) is a fourth length (L4), an included angle formed by the third length (L3) and the fourth length (L4) is a second included angle (angle 2), and the minimum value of the second included angle (angle 2) is 30 degrees.
8. The load switch of the visible fracture of full insulation of claim 6, characterized in that: the small window (5) is arranged on the small window, and the small window (5) consists of a small window pressing plate (51), a small window transparent plate (52) and a small window sealing gasket (53); the small-view window pressing plate (51) fixes a small-view window transparent plate (52) and a small-view window sealing gasket (53) on the upward surface of the box body (1) through bolts in sequence.
9. The load switch of claim 8, wherein: the shape of the small window transparent plate (52) is circular.
10. The load switch of claim 8, wherein: the transparent plate (52) of the small window is made of polycarbonate transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120577055.4U CN214898226U (en) | 2021-03-22 | 2021-03-22 | Load switch with fully-insulated visible fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120577055.4U CN214898226U (en) | 2021-03-22 | 2021-03-22 | Load switch with fully-insulated visible fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214898226U true CN214898226U (en) | 2021-11-26 |
Family
ID=79037591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120577055.4U Active CN214898226U (en) | 2021-03-22 | 2021-03-22 | Load switch with fully-insulated visible fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214898226U (en) |
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2021
- 2021-03-22 CN CN202120577055.4U patent/CN214898226U/en active Active
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