CN202067718U - Mistake-proof device between ground wire and knife switch - Google Patents
Mistake-proof device between ground wire and knife switch Download PDFInfo
- Publication number
- CN202067718U CN202067718U CN2011200731901U CN201120073190U CN202067718U CN 202067718 U CN202067718 U CN 202067718U CN 2011200731901 U CN2011200731901 U CN 2011200731901U CN 201120073190 U CN201120073190 U CN 201120073190U CN 202067718 U CN202067718 U CN 202067718U
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- Prior art keywords
- proof device
- ground wire
- mistake
- error
- disconnecting link
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
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Abstract
The utility model discloses a mistake-proof device between a ground wire and a knife switch, which is mounted on a steel plate. A pressure bar is mounted on the lower portion of the mistake-proof device, a knife switch is mounted inside the mistake-proof device, and a knife switch handle is disposed on the upper portion of the mistake-proof device. A ground wire can be mounted on the mistake-proof device, a limit plate is mounted on the wall of the mistake-proof device and on one side of the ground wire through a shaft, a notch is arranged on the inner side of the limit plate, and a lock hole is arranged on the wall of the mistake-proof device and below the limit plate. A ground wire channel is arranged on the lower portion of the limit plate, and a ground wire plate with a hole is mounted in the ground wire channel. A spring is sleeved to the lower portion of the lower portion of the pressure bar mounted in the mistake-proof device, and a changeover switch is connected to the mistake-proof device. The knife switch handle on the knife switch is mounted on one side of the knife switch which is fixedly mounted on a steel channel. The ground wire channel is closed by a mistake-proof lock inserted into the lock hole and position of the limit plate to prevent current conduction of the ground wire during making of the knife switch, so that safety accidents are avoided. The mistake-proof device is suitable for being applied as circuit misoperation preventing devices in the field of power transmission and transformation.
Description
Technical field
The utility model proposes the earth connection of appliance field and the error-proof device between the disconnecting link.
Background technology
1, in recent years, switching on earth wire or charged hanging ground-wire accident take place repeatedly in the electric power system, except human factor, main cause is exactly that the anti-error measure of earth connection remains defective.At present, all kinds of ground wires are anti-error mainly checks on by program, if a unlocking operation is jumped in generation or the people operates for enabling unlock key, misoperation fault is difficult to avoid.
2, comparatively advanced ground wire management system is mainly operated by detecting the continuation that just can proceed disconnecting link or switch behind the earth connection Gui Ku.But, if detect the ground wire device fault, there is not Gui Ku to be judged as Gui Ku such as earth connection, may form the band earth connection and close disconnecting link misoperation hidden danger.
3, facts have proved anti-error phase-locked combination of mechanical latching and program, can farthest avoid misoperation.And because earth connection is that equipment itself carries unlike the ground connection disconnecting link, so majority is not considered the indication of earth connection state in the design.At present, 220kV transformer substation grounding wire earth point is installed and is not met anti-error regulation, and almost each ground connection disconnecting link must corresponding earth point on request.Like this, will certainly consider increases earth point quantity, and anti-error reliability is reduced greatly.
1, in recent years, repeatedly switching on earth wire misoperation fault takes place in the system, this switching on earth wire misoperation fault is the trend that comes back and rise.
2, existing computer error-proof device the people often occurs for release or jump a release situation.
3, existing electric and mechanical anti-misoperation device can only be accomplished to prevent to be with the ground connection disconnecting link to close a floodgate or charged splice grafting ground disconnecting link, and can not locking switching on earth wire or charged hanging ground-wire.
4, generation switching on earth wire damage sequence is very serious.
Summary of the invention
In order to overcome the shortcoming of existing error-proof device, the utility model provides and has prevented the misoperation device between earth connection and the disconnecting link.This device pins limiting plate by anti-error lock, when making disconnecting link connect ground wire, prevents misoperation.
The scheme that the utility model technical solution problem is adopted is:
Error-proof device is installed on the steel plate, and the bottom is equipped with depression bar, and inside is equipped with disconnecting link, and the disconnecting link handle is arranged on the top of error-proof device.Error-proof device can be installed ground wire, by axle limiting plate is installed on the error-proof device wall of a side of ground wire, and the inboard of limiting plate is provided with breach, and the error-proof device wall of limiting plate downside is provided with lockhole.Be provided with the ground wire casing at baffle plate, earth plate is installed in the ground wire casing, earth plate is provided with the hole.Be with spring below the depression bar of being installed in the error-proof device, on error-proof device, be connected with change over switch.Disconnecting link handle on the disconnecting link is installed in a side of the disconnecting link that is connected with switch, and disconnecting link is fixed on the channel-section steel.
Good effect, the utility model closes the ground wire casing by the position of inserting between anti-error lock and the limiting plate in lockhole, electric current and ground conductive when preventing that disconnecting link from closing a floodgate, thus avoid the generation of security incident.The utility model suits in the power transmission and transformation field as preventing to use in the circuit misoperation.
Description of drawings
Fig. 1 is an error-proof device front outline drawing
Fig. 2 is the error-proof device depression bar and the lockhole location drawing
Fig. 3 is error-proof device ground wire terminal block and limiting plate location state diagram
Fig. 4 is an error-proof device earth plate structure chart
Fig. 5 is an error-proof device ground wire casing location state diagram
Fig. 6 changes position of the switch state diagram for error-proof device depression bar and dress
Fig. 7 overlooks state diagram for the error-proof device disconnecting link
Fig. 8 faces state diagram for error-proof device
Among the figure, 1. error-proof device, 2. depression bar, 3. steel plate, 4. disconnecting link handle, 5. earth plate, 5.1. screw, 5.2. nut, 6. limiting plate, 6.1. axle, 6.2. breach, 7. lockhole, 8. change over switch, 9. earth plate, 9.1. hole, 10. wire casing, 11. disconnecting links, 12. channel-section steels.
Embodiment
Shown in Fig. 1,2 and 3, error-proof device 1 is installed on the steel plate 3, and the bottom is equipped with depression bar 2, and inside is equipped with disconnecting link, and disconnecting link handle 4 is arranged on the top of error-proof device.
Error-proof device is equipped with ground wire, by axle 6.1 limiting plate 6 is installed on the error-proof device wall of a side of ground wire, and the inboard of limiting plate is provided with breach 6.2, and the error-proof device wall of limiting plate downside is provided with lockhole 7.
According to Fig. 4 and shown in Figure 5, on the error-proof device wall of limiting plate 6 bottoms, be provided with ground wire casing 10, earth plate 9 is installed in the ground wire casing, earth plate is provided with hole 9.1.
Shown in Fig. 6,7 and 8, be with spring 2.1 below the depression bar of being installed in the error-proof device 2, on error-proof device, be connected with change over switch 8.
Disconnecting link handle 4 on the disconnecting link 11 is installed in a side of the disconnecting link that is connected with switch, and disconnecting link is fixed on the channel-section steel 12.
Change over switch is used for the electric current that disconnecting link combined floodgate back is passed through is carried through change over switch.
Anti-error lockset can lock in the lockhole.
The utility model is installed and use
Just often, disconnecting link closes the position or does not install ground wire.Depression bar ejects, the anti-error lock on the baffle plate incision depression bar gap position, because spacing steel plate effect, depression bar can not press down, so ground wire grounded end can not be installed when closing.When needs installing earth connection, open lockset, baffle plate moves outward and exposes the ground wire casing fully.Put ground wire into screw rod and compress depression bar, and screw, the depression bar position is locked, it is anti-error to play program.Depression bar moves down under the pressure of ground wire, blocks the switch operation handle, plays the effect of mechanical anti-misoperation.Depression bar moves down drivening rod and drives change over switch, if the change over switch wiring promptly can be transmitted state of ground wire.If do not remove ground wire, because the depression bar effect, disconnecting link can't close.After removing ground wire, under the effect of spring, depression bar ejects, and disconnecting link can be operated.
When the disconnecting link overhaul, require disconnecting link to operate.With the end of a thread exclusively.The position of bolt position and depression bar is put in the hole of earth plate, and compressing depression bar overcoat moves down when screwing nut, and connecting rod moves down, and can show the ground line position, and disconnecting link can free operant.The disconnecting link overhaul finishes after the acceptance(check), depresses bar in the depression bar, utilize the trigger principle make in bar do not return, play the mechanical anti-misoperation effect again, after ground wire was removed, inside and outside bar ejected simultaneously, arrived the outer bar cocking in restriction back, interior bar resets.
If 1, between 2 bus disconnecting links transmission device is installed, can realize simultaneously anti-error.
The utility model can be realized 66KV disconnecting link ground wire mechanical anti-misoperation, cooperates with program is anti-error, can reduce the band ground wire greatly and close the disconnecting link possibility.
Earth connection and disconnecting link room machine are anti-error, and the ground connection end can not connect when disconnecting link closes, and disconnecting link divides the position, and the ground connection end is not removed, and disconnecting link can not close a floodgate.
1, normal disconnecting link closing position, because the effect of disconnecting link postive stop baffle, depression bar is not by going down, the ground connection end can not connect.
2, after disconnecting link drew back, when connecting the ground connection end, the ground connection end was depressed depression bar, blocks limiting plate, makes disconnecting link not operate, and depression bar drives sensitive switch simultaneously, will show the earth connection position if connect condition line
3, special-purpose ground connection end is used in the disconnecting link overhaul, and the ground connection end is a bit used screw means, and another hole sees through bar in the depression bar, depress outer bar, outer bar drives sensitive switch and shows the earth connection position, because bar does not press down in the depression bar, so this disconnecting link can free operant.
4, after the disconnecting link overhaul is checked and accepted and finished, press bar in the down-pressed pole, block the disconnecting link postive stop baffle, disconnecting link is locked by machinery, can not operate, and after hours, removes ground wire, and bar ejected simultaneously in the outer bar of depression bar drove, and disconnecting link can be operated.
Adopt the utility model to carry out anti-misoperation between earth connection and the disconnecting link, generation that can the minimizing accident, and also safe and reliable.
Claims (1)
1. the error-proof device between earth connection and the disconnecting link, it is characterized in that: error-proof device (1) is installed on the steel plate (3), and the bottom is equipped with depression bar (2), and inside is equipped with disconnecting link, and disconnecting link handle (4) is arranged on the top of error-proof device;
Error-proof device is equipped with ground wire, by axle (6.1) limiting plate (6) is installed on the error-proof device wall of a side of ground wire, and the inboard of limiting plate is provided with breach (6.2), and the error-proof device wall of limiting plate downside is provided with lockhole (7);
Be provided with ground wire casing (10) on the error-proof device wall of limiting plate (6) bottom, earth plate (9) is installed in the ground wire casing, earth plate is provided with hole (9.1);
Be with spring (2.1) below the depression bar of being installed in the error-proof device (2), on error-proof device, be connected with change over switch (8);
Disconnecting link handle (4) on the disconnecting link (11) is installed in a side of the disconnecting link that is connected with switch, and disconnecting link is fixed on the channel-section steel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200731901U CN202067718U (en) | 2011-03-19 | 2011-03-19 | Mistake-proof device between ground wire and knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200731901U CN202067718U (en) | 2011-03-19 | 2011-03-19 | Mistake-proof device between ground wire and knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202067718U true CN202067718U (en) | 2011-12-07 |
Family
ID=45061575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200731901U Expired - Lifetime CN202067718U (en) | 2011-03-19 | 2011-03-19 | Mistake-proof device between ground wire and knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202067718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157281A (en) * | 2011-03-19 | 2011-08-17 | 辽宁省电力有限公司葫芦岛供电公司 | Anti-misoperation device between earth line and isolator |
-
2011
- 2011-03-19 CN CN2011200731901U patent/CN202067718U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157281A (en) * | 2011-03-19 | 2011-08-17 | 辽宁省电力有限公司葫芦岛供电公司 | Anti-misoperation device between earth line and isolator |
| CN102157281B (en) * | 2011-03-19 | 2014-03-26 | 辽宁省电力有限公司葫芦岛供电公司 | Anti-misoperation device between earth line and isolator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121218 Address after: 125000 Huludao City, Liaoning province Longgang district on the road No. 5 Patentee after: Huludao Power Supply Company, Liaoning Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 125000 Huludao City, Liaoning province Longgang district on the road No. 5 Patentee before: Huludao Power Supply Company, Liaoning Electric Power Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111207 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111207 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |