CN205335161U - Three station load switch - Google Patents
Three station load switch Download PDFInfo
- Publication number
- CN205335161U CN205335161U CN201620020135.9U CN201620020135U CN205335161U CN 205335161 U CN205335161 U CN 205335161U CN 201620020135 U CN201620020135 U CN 201620020135U CN 205335161 U CN205335161 U CN 205335161U
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- contact
- sleeve pipe
- grounding
- static contact
- static
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Abstract
The utility model provides a three station load switch, includes sleeve pipe (1), moving contact (3), grounding contact (5), static contact (6) and petersen coil (7), its characterized in that: sleeve pipe (1) install in the packing has SF6 gaseous gas tank (2), sleeve pipe (1) top articulates there are moving contact (3), moving contact (3) right side is articulated with connecting rod (4), grounding contact (5) are located sleeve pipe (1) upper right side, connecting rod (4) articulate the bottom in grounding contact (5), static contact (6) are located sleeve pipe (1) upper left side, the connecting piece is passed through at static contact (6) top and generating line (8) are connected, there are petersen coil (7) of taking the arc end through electrically conductive support mounting on the connecting piece. The utility model discloses can be between switch and generating line no any plastic part that arouses electric arc easily, the static contact is fixed on the generating line, is put off arc in the extremely short time by the arc explosion chamber that revolves that petersen coil constitutes, has guaranteed the very low energy that cut -offs.
Description
Technical field
This utility model relates to a kind of gas insulation switch cabinet parts, especially a kind of three-stations load switch。
Background technology
Gas insulation switch cabinet has the advantageous feature of hermetically sealed all insulation, reduces environment and switch cubicle is run the impact caused, ensure that the reliability of electrical operation on to greatest extent。In gas isolated in voltage-controlled system, the on-load switch using configuration Petersen coil guarantees switchable property, good switchable property refers to is tried one's best little by the electric arc formed between the moving contact of each phase and static contact in switching process and quickly extinguishes, and avoids the scaling loss of each contact as far as possible。But, in existing gas-insulated Medium Voltage Switchgear, the switch energy consumption of on-load switch is big, in safety, operability with still need in service life improve。
Summary of the invention
For the deficiencies in the prior art, the three-stations load switch that this utility model provides a kind of simple in construction, easy to operate, energy consumption is little and safety is good。
The technical solution of the utility model is: a kind of three-stations load switch, including sleeve pipe (1), moving contact (3), grounding contact (5), static contact (6) and Petersen coil (7), it is characterized in that: described sleeve pipe (1) is arranged in the gas tank (2) being filled with SF6 gas, sleeve pipe (1) top is hinged with moving contact (3), moving contact (3) right side is hinged with connecting rod (4), grounding contact (5) is positioned at sleeve pipe (1) upper right side, connecting rod (4) is hinged on the bottom of grounding contact (5), static contact (6) is positioned at sleeve pipe (1) upper left side, static contact (6) top is connected by connector and bus (8), connector is provided with the Petersen coil (7) of arc end by conducting bracket。
Described moving contact (3) top is provided with several can with the contact rivet of static contact (6) or grounding contact (5) movable contact。
Described static contact (6) has the first draw-in groove, and grounding contact (5) has the second draw-in groove, and contact rivet can to left movement and the first draw-in groove or to move right with the second draw-in groove be embedded movable contact。
When described moving contact (3) is in separating brake switch position (10), the move distance between contact rivet and static contact (6) is more than the move distance between grounding contact (5)。
The beneficial effects of the utility model are: 1, this utility model simple in construction optimization, be made up of little movable part, splitting or integrating, landing operation is completed in gas tank, sleeve pipe is connected with bus, without any plastic components easily caused by electric arc between switch and bus, static contact is fixed on bus, the rotating arc extinquishing room blow-out within the extremely short time being made up of Petersen coil, it is ensured that very low cut-offs energy。2, the special contact rivet in moving contact blade face plays the effect of dry lubrication on the one hand, makes contact that melting welding will not occur when short circuit on the other hand。Switch blade by the distance of " dividing " to " conjunction " much larger than by " dividing " distance to " ground connection ", which ensure that be in " dividing " position at blade, when electrical network generation overvoltage, will not puncture on bus。This on-load switch can cut-off 630A rated current more than 100 times, and it closes the capacity standard-required also much larger than VDE and IEC。
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model three-stations load switch。
In figure, sleeve pipe (1), gas tank (2), moving contact (3), connecting rod (4), grounding contact (5), static contact (6), Petersen coil (7), bus (8), closing switch position (9), separating brake switch position (10)。
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further:
As shown in Figure 1, a kind of three-stations load switch, including sleeve pipe (1), moving contact (3), grounding contact (5), static contact (6) and Petersen coil (7), it is characterized in that: described sleeve pipe (1) is arranged in the gas tank (2) being filled with SF6 gas, sleeve pipe (1) top is hinged with moving contact (3), moving contact (3) right side is hinged with connecting rod (4), grounding contact (5) is positioned at sleeve pipe (1) upper right side, connecting rod (4) is hinged on the bottom of grounding contact (5), static contact (6) is positioned at sleeve pipe (1) upper left side, static contact (6) top is connected by connector and bus (8), connector is provided with the Petersen coil (7) of arc end by conducting bracket。
In the present embodiment, described moving contact (3) top is provided with several can with the contact rivet of static contact (6) or grounding contact (5) movable contact, and described static contact (6) has the first draw-in groove, grounding contact (5) has the second draw-in groove, contact rivet can to left movement and the first draw-in groove or to move right with the second draw-in groove be embedded movable contact, when simultaneously described moving contact (3) is in separating brake switch position (10), the move distance between contact rivet and static contact (6) is more than the move distance between grounding contact (5)。
The on-load switch of the present embodiment is designed as three station positions, switched over by unique one element (switch tool) and realize closing-cut-offfing-ground connection, three stations represent closing switch position (9), separating brake switch position (10) and earthed switch position respectively, wherein Petersen coil (7) is arc-control device, after moving contact (3) and static contact (6) separate, electric arc can be produced between moving contact (3) and static contact (6)。Electric arc arc is with the instantaneous arc end moving to Petersen coil from static contact, and electric current produces magnetic field by copper lines winding, and under the influence of a magnetic field, electric arc is inhaled in plastic hoop and rotates, elongate。The electric arc rotated constantly contacts fresh SF6 gas, discharges heat energy, is quickly cooled, when current over-zero, and arc extinction。
Described in above-described embodiment and description is that principle of the present utility model and most preferred embodiment are described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model。
Claims (4)
1. a three-stations load switch, including sleeve pipe (1), moving contact (3), grounding contact (5), static contact (6) and Petersen coil (7), it is characterized in that: described sleeve pipe (1) is arranged in the gas tank (2) being filled with SF6 gas, sleeve pipe (1) top is hinged with moving contact (3), moving contact (3) right side is hinged with connecting rod (4), grounding contact (5) is positioned at sleeve pipe (1) upper right side, connecting rod (4) is hinged on the bottom of grounding contact (5), static contact (6) is positioned at sleeve pipe (1) upper left side, static contact (6) top is connected by connector and bus (8), connector is provided with the Petersen coil (7) of arc end by conducting bracket。
2. three-stations load switch according to claim 1, it is characterised in that: described moving contact (3) top is provided with several can with the contact rivet of static contact (6) or grounding contact (5) movable contact。
3. three-stations load switch according to claim 2, it is characterized in that: described static contact (6) has the first draw-in groove, grounding contact (5) has the second draw-in groove, and contact rivet can to left movement and the first draw-in groove or to move right with the second draw-in groove be embedded movable contact。
4. the three-stations load switch according to Claims 2 or 3, it is characterised in that: when described moving contact (3) is in separating brake switch position (10), the move distance between contact rivet and static contact (6) is more than the move distance between grounding contact (5)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620020135.9U CN205335161U (en) | 2016-01-11 | 2016-01-11 | Three station load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620020135.9U CN205335161U (en) | 2016-01-11 | 2016-01-11 | Three station load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205335161U true CN205335161U (en) | 2016-06-22 |
Family
ID=56210483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620020135.9U Active CN205335161U (en) | 2016-01-11 | 2016-01-11 | Three station load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205335161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602452A (en) * | 2016-12-01 | 2017-04-26 | 张力 | Isolation circuit breaker insulated by adopting environmental gas |
-
2016
- 2016-01-11 CN CN201620020135.9U patent/CN205335161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602452A (en) * | 2016-12-01 | 2017-04-26 | 张力 | Isolation circuit breaker insulated by adopting environmental gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |