CN202268279U - Direct-current grounding prevention device for operating auxiliary switch of isolating switch - Google Patents
Direct-current grounding prevention device for operating auxiliary switch of isolating switch Download PDFInfo
- Publication number
- CN202268279U CN202268279U CN 201120355952 CN201120355952U CN202268279U CN 202268279 U CN202268279 U CN 202268279U CN 201120355952 CN201120355952 CN 201120355952 CN 201120355952 U CN201120355952 U CN 201120355952U CN 202268279 U CN202268279 U CN 202268279U
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- China
- Prior art keywords
- isolating switch
- direct
- current grounding
- switch
- prevention device
- Prior art date
- 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 - Fee Related
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Abstract
The utility model discloses a direct-current grounding prevention device for an operating auxiliary switch of an isolating switch. The direct-current grounding prevention device comprises a silicon rubber rain cover which is arranged on a vertical connecting rod of the isolating switch. Because the silicon rubber rain cover is arranged on the vertical connecting rod of the isolating switch in the utility model, for an operating mechanism of the isolating switch, an umbrella covers on the upper part of the isolating switch equivalently, and snow and rain can be prevented from falling on the upper plane of the operating mechanism effectively, so that a direct-current grounding fault caused by that rainwater enters a secondary terminal block of the auxiliary switch inside the operating mechanism due to untight seal is prevented. The direct-current grounding prevention device disclosed by the utility model can be used for effectively preventing the direct-current grounding fault, is safe and convenient and is simple and convenient to manufacture.
Description
Technical field
The utility model belongs to the isolating switch technical field, is specifically related to the anti-DC earthing device of a kind of isolating switch actuating auxiliary switch.
Background technology
At present, a large amount of GW4 that use, the abnormal signal of GW5 type isolating switch always frequent quoting " DC earthing " when the sleety weather in every year in electric power system.If quoted the abnormal signal of " DC earthing "; If multipoint earthing is arranged in direct current system simultaneously; In direct current system, will have a plurality of closed-loop paths to produce so, the existence meeting of these abnormal closed-loop paths is sent abnormal instruction to power equipment, causes the malfunction of equipment.Therefore this " DC earthing " signal quotes the serious safe and stable operation that threatens electric power system.Tracing it to its cause is because there is sealing problem in the operating mechanism of this model isolating switch aspect output shaft and the seal closure two, thereby causes the interior auxiliary switch water inlet of operating mechanism to cause.And at present, solve this type of problem and still be in the exploratory stage.
The utility model content
The purpose of the utility model is to avoid above-mentioned weak point of the prior art, and provides a kind of DC ground fault, safe ready, isolating switch actuating auxiliary switch simple for production of effectively preventing to prevent the DC earthing device.
The technical scheme that purpose adopted that realizes the utility model is: a kind of isolating switch actuating auxiliary switch is prevented the DC earthing device, comprises the silicon rubber rain cover, and said silicon rubber rain cover is arranged on the vertical links of isolating switch.
Because the utility model is provided with the silicon rubber rain cover on the vertical links of isolating switch; Like this for the operating mechanism of isolating switch; Be equivalent to cover at an upper portion thereof yunna spiraea; Can avoid sleet to descend slowly and lightly on plane on the operating mechanism effectively, thereby avoid owing to the fault that causes " DC earthing " on the poorly sealed secondary connection terminal that causes rainwater to get into the inner auxiliary switch of operating mechanism.The utility model effectively prevents DC ground fault, safe ready and simple for production.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1: a kind of isolating switch actuating auxiliary switch is prevented the DC earthing device, comprises silicon rubber rain cover 1, and said silicon rubber rain cover 1 is arranged on the vertical links 2 of isolating switch.
Utilize the utility model; On the vertical links 2 of isolating switch, silicon rubber rain cover 1 is set; Like this for the operating mechanism of isolating switch; Be equivalent to cover at an upper portion thereof yunna spiraea, can avoid sleet to descend slowly and lightly on plane on the operating mechanism effectively, thereby avoided owing to the fault that causes " DC earthing " on the poorly sealed secondary connection terminal that causes rainwater to get into the inner auxiliary switch of operating mechanism.The utility model effectively prevents DC ground fault, safe ready and simple for production.
Claims (1)
1. the anti-DC earthing device of isolating switch actuating auxiliary switch comprises the silicon rubber rain cover, and it is characterized in that: said silicon rubber rain cover is arranged on the vertical links of isolating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120355952 CN202268279U (en) | 2011-09-22 | 2011-09-22 | Direct-current grounding prevention device for operating auxiliary switch of isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120355952 CN202268279U (en) | 2011-09-22 | 2011-09-22 | Direct-current grounding prevention device for operating auxiliary switch of isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202268279U true CN202268279U (en) | 2012-06-06 |
Family
ID=46159064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120355952 Expired - Fee Related CN202268279U (en) | 2011-09-22 | 2011-09-22 | Direct-current grounding prevention device for operating auxiliary switch of isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202268279U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969187A (en) * | 2012-11-12 | 2013-03-13 | 嘉兴电力局 | Water-proof cover of universal outdoor knife operation mechanism case |
| CN103943401A (en) * | 2014-04-28 | 2014-07-23 | 国家电网公司 | Windproof mechanism used for perpendicular output shaft of outdoor electric power facility operation box |
| CN106935437A (en) * | 2017-04-30 | 2017-07-07 | 国网江苏省电力公司职业技能训练基地 | A kind of Novel rainproof hydroelectric power isolated switchgear |
-
2011
- 2011-09-22 CN CN 201120355952 patent/CN202268279U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969187A (en) * | 2012-11-12 | 2013-03-13 | 嘉兴电力局 | Water-proof cover of universal outdoor knife operation mechanism case |
| CN103943401A (en) * | 2014-04-28 | 2014-07-23 | 国家电网公司 | Windproof mechanism used for perpendicular output shaft of outdoor electric power facility operation box |
| CN106935437A (en) * | 2017-04-30 | 2017-07-07 | 国网江苏省电力公司职业技能训练基地 | A kind of Novel rainproof hydroelectric power isolated switchgear |
| CN106935437B (en) * | 2017-04-30 | 2019-03-29 | 国网江苏省电力公司职业技能训练基地 | A kind of rainwater-proof electric power isolated switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20140922 |
|
| EXPY | Termination of patent right or utility model |