CN202930909U - Waterlogging supervising device in enclosed bus - Google Patents
Waterlogging supervising device in enclosed bus Download PDFInfo
- Publication number
- CN202930909U CN202930909U CN 201220525463 CN201220525463U CN202930909U CN 202930909 U CN202930909 U CN 202930909U CN 201220525463 CN201220525463 CN 201220525463 CN 201220525463 U CN201220525463 U CN 201220525463U CN 202930909 U CN202930909 U CN 202930909U
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- CN
- China
- Prior art keywords
- enclosed busbar
- respirator
- enclosed bus
- supervising device
- enclosed
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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 - Fee Related
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Abstract
The utility model discloses a waterlogging supervising device in an enclosed bus, a respirator is arranged on a pipeline between the enclosed bus and an enclosed bus water discharge door, and a humidity monitoring reagent is arranged in the respirator. According to the waterlogging supervising device in the enclosed bus, the respirator communicated to the enclosed bus is arranged, the humidity monitor reagent is provided in the respirator, the damping condition of the enclosed bus can be determined through the color change of the humidity monitor reagent can be momentarily observed, the operation is easy and easy to be carried out, the cost is low, the damping condition of the enclosed bus can be better monitored, the defect that the irregular discharge of the waterlogging in the enclosed bus, so that equipment operation can be influenced is avoided.
Description
Technical field
The utility model belongs to enclosed busbar protective device technical field, relates to a kind of enclosed busbar internal water accumulation supervising device.
Background technology
Isolated-phase enclosed bus comprises in the scope of application in the power plant: from generator outlet, to the major loop bus of main transformer low-pressure side, go out each branch line to equipment cabinets such as station service transformer and voltage transformer, lightning arresters from the major loop bus leading.
Adopt the isolated-phase enclosed bus main purpose to be:
1) reduce earth fault, avoid phase fault.The short circuit current of heavy-duty generator outlet is very large, brings very big difficulty for the manufacturing of circuit breaker, and generator also holds impact that can't stand the outlet short circuit.Enclosed busbar can be eliminated extraneous moisture substantially because the shell protection is arranged.The earth fault that dust and foreign object cause, the continuity of raising generator operation.Bus needs phase-splitting sealing, the generation of also substantially stopping phase fault.
2) eliminate the heating of steel structure.The worn-out heavy current busbar that leaks makes on every side that steel structure and reinforcing bar produce eddy current and circulation under electromagnetic induction, and heating temp is high, loss is large, reduction structures intensity.Enclosed busbar adopts housing shroud can fundamentally solve steel structure induction heating problem.
3) reduce the phase fault electric power.When the very large short circuit current that is short-circuited flows through bus, due to the shielding action of shell, the suffered short-circuit electromotive force of alternate conductor is greatly reduced.
4) after the bus sealing, just might adopt the pressurized operation mode, prevent the insulator dewfall, improve property safe and reliable to operation, create condition for bus adopts the ventilation type of cooling.
5) enclosed busbar is by factory's complete production, and quality is more guaranteed, and the operation maintenance workload is little, and construction and installation are easy, and wire net need not be set, and simplifies the structure, and has also simplified the requirement to civil engineering structure.
When can generation ponding in enclosed busbar during situation below occuring:
1) fluid sealant is selected improperly, and what the sealing of enclosed busbar was adopted is welding manner, but the main sealing such as raise at generator outlet box, main transformer seat, PT outlet positions are different due to sealed material, mostly adopts the sealing means of fluid sealant.Select improperly due to fluid sealant, soon, fluid sealant is just because being subjected to heat ageing to lose sealing property after unit start, if the bus micro positive pressure device does not normally use, when ambient humidity increases, moisture will enter in enclosed busbar by above-mentioned position, cause ponding.
2) enclosed busbar poor welding quality, in the work progress of enclosed busbar, due to the long construction period of enclosed busbar, many reasons such as workload is large cause the welding quality of enclosed busbar not reach requirement, as; The welding personnel technology is not stable in performance, and impact of be subjected to rain, snow, frost during welding, freezing etc. causes the hidden danger such as enclosed busbar weld cracking, slag inclusion, trachoma.This is also the main cause that causes ponding.
3) distortion of enclosed busbar, enclosed busbar are after construction is completed, and owing to be out of shape by foundation of civil work, the puzzlement of the factors such as sinking causes the enclosed busbar distortion; Or bus is subjected to the impact of dead weight after long-play, and be distorted distortion and local metal fatigue cause enclosed busbar to be revealed.Seepage when meeting rain causes the enclosed busbar internal water accumulation.
4) the micro positive pressure device effect on moisture extraction is bad, and micro-positive pressure of enclosed busbar device operational effect is relatively poor, will directly squeeze in enclosed busbar with the air of moisture, causes bus ponding through accumulation.There is no supervising device for enclosed busbar internal water accumulation and moisture at present, can only lean on regularly by the draining of enclosed busbar wicket, to eliminate internal water accumulation and moisture.If when the enclosed busbar internal water accumulation is serious, in time find, do not take out by regular draining yet and just easily cause bus inside to be short-circuited or earth fault.If the untimely excision of phase fault will be burnt whole generating set, cause very serious consequence.In addition, ungrounded phase voltage will be raise, affect generator insulating, and ground connection also easily be caused the accident of human electric shock.
The utility model content
The technical problem that the utility model solves is to provide a kind of enclosed busbar internal water accumulation supervising device, this device can, can detect the enclosed busbar operation conditions at any time, guarantee device security stable operation.
The utility model is to be achieved through the following technical solutions:
A kind of enclosed busbar internal water accumulation supervising device arranges respirator on the pipeline between enclosed busbar and enclosed busbar wicket, be provided with humidity control reagent in respirator.
Described respirator is transparent cloche, also is provided with graduation mark on cloche.
Change color occurs after absorbing moisture in described humidity control reagent.
Further, described humidity control reagent is silica gel.
Compared with prior art, the utlity model has following useful technique effect:
The enclosed busbar internal water accumulation supervising device that the utility model provides, by the respirator that is connected with enclosed busbar is set, and be provided with humidity control reagent in respirator, by observing at any time the change color of humidity control reagent, judge the enclosed busbar situation of making moist.
Such as, adopt silica gel that the enclosed busbar situation of making moist is detected, after silica gel suction variable color reached certain ratio, prompting enclosed busbar internal water accumulation needed to discharge, and open the enclosed busbar wicket and discharge ponding this moment, reaches the effect of protection bus.
The enclosed busbar internal water accumulation supervising device that the utility model provides is transparent cloche with respirator, and also is provided with graduation mark on cloche, need to discharge ponding as long as observe humidity control reagent change color to the graduation mark of regulation with regard to prompting; Operation is simple like this, and expense is cheap, can be good at the enclosed busbar situation of making moist is monitored, and can not regularly discharge when avoiding in enclosed busbar, ponding occuring, and affects the defective of equipment operation.
Description of drawings
Fig. 1 is structure chart of the present utility model;
Wherein: 1 is enclosed busbar; 2 is the enclosed busbar wicket; 3 is respirator.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, described is to explanation of the present utility model rather than restriction.
Referring to Fig. 1, enclosed busbar internal water accumulation supervising device arranges respirator 3 on the pipeline between enclosed busbar 2 and enclosed busbar wicket 2, be provided with humidity control reagent in respirator 3.
Like this by the respirator be connected with enclosed busbar is set, and be provided with humidity control reagent in respirator, by observing at any time the change color of humidity control reagent, judge the enclosed busbar situation of making moist.
Concrete; respirator is transparent cloche; also be provided with graduation mark on cloche; need to discharge ponding as long as observe humidity control reagent change color to the graduation mark of regulation with regard to prompting; just point out the enclosed busbar internal water accumulation to need to discharge; open the enclosed busbar wicket and discharge ponding this moment, reaches the effect of protection bus.
And humidity control reagent can be selected the indicator that change color occurs after absorption moisture commonly used, and such as silica gel used usually, its indicating effect is obvious, and cheap, uses safety.
The enclosed busbar internal water accumulation supervising device that the utility model provides, operation is simple, and expense is cheap, can be good at the enclosed busbar situation of making moist is monitored, and can not regularly discharge when avoiding in enclosed busbar, ponding occuring, and affects the defective of equipment operation.
Claims (4)
1. an enclosed busbar internal water accumulation supervising device, is characterized in that, on the pipeline between enclosed busbar and enclosed busbar wicket, respirator is set, and is provided with humidity control reagent in respirator.
2. enclosed busbar internal water accumulation supervising device as claimed in claim 1, is characterized in that, described respirator is transparent cloche, also is provided with graduation mark on cloche.
3. enclosed busbar internal water accumulation supervising device as claimed in claim 1, is characterized in that, described humidity control reagent after absorbing moisture, change color occurs.
4. enclosed busbar internal water accumulation supervising device as claimed in claim 3, further, described humidity control reagent is silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525463 CN202930909U (en) | 2012-10-15 | 2012-10-15 | Waterlogging supervising device in enclosed bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525463 CN202930909U (en) | 2012-10-15 | 2012-10-15 | Waterlogging supervising device in enclosed bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930909U true CN202930909U (en) | 2013-05-08 |
Family
ID=48220819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220525463 Expired - Fee Related CN202930909U (en) | 2012-10-15 | 2012-10-15 | Waterlogging supervising device in enclosed bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612523A (en) * | 2018-12-04 | 2019-04-12 | 中国神华能源股份有限公司 | The system for monitoring enclosed busbar |
| CN110568230A (en) * | 2019-09-27 | 2019-12-13 | 山东达驰阿尔发电气有限公司 | Method for mounting partial discharge sensor in isolated-phase enclosed bus |
-
2012
- 2012-10-15 CN CN 201220525463 patent/CN202930909U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612523A (en) * | 2018-12-04 | 2019-04-12 | 中国神华能源股份有限公司 | The system for monitoring enclosed busbar |
| CN110568230A (en) * | 2019-09-27 | 2019-12-13 | 山东达驰阿尔发电气有限公司 | Method for mounting partial discharge sensor in isolated-phase enclosed bus |
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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: 20130508 Termination date: 20181015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |