CN204178854U - A kind of main transformer bushing automatic air eliminator - Google Patents
A kind of main transformer bushing automatic air eliminator Download PDFInfo
- Publication number
- CN204178854U CN204178854U CN201420737646.3U CN201420737646U CN204178854U CN 204178854 U CN204178854 U CN 204178854U CN 201420737646 U CN201420737646 U CN 201420737646U CN 204178854 U CN204178854 U CN 204178854U
- Authority
- CN
- China
- Prior art keywords
- main transformer
- bushing
- screw rod
- transformer bushing
- motor
- 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
A kind of main transformer bushing automatic air eliminator, comprise motor, motor connection for transmission connecting rod, kinematic link end is provided with gear, and gear engages with the tooth mouth that screw rod is arranged, screw rod linking springs, and the non-return valve of bushing is withstood in described screw rod one end.Establish pressure sensor in described bushing, pressure sensor, motor, alarm connect monitoring loop.A kind of main transformer bushing of the utility model automatic air eliminator is Automated condtrol means of deflation, effectively avoids the damage of main transformer bushing venting body.Non-automated can also be adopted to control, namely by mode of manually exitting: people, for pressing venting screw rod, reaches venting effect.
Description
Technical field
A kind of main transformer bushing of the utility model automatic air eliminator, relates to main transformer monitoring field.
Background technology
Three Gorges Hydropower Plant has 32 500KV main transformers, and its high-pressure side is directly connected with 500KV GIS, should be interconnected and mutually completely cut off again between GIS and main transformer.Therefore, the bushing that can realize this requirement just seems extremely important.At Three Gorges left and right banks main transformer bushing, make to completely cut off also row within it between GIS air chamber and main transformer by the sealing of upper and lower sides and become a cavity, the inside is air, pressure and atmospheric pressure balance.In main transformer running, supervisory control system can report pressure anomaly alarm signal.
After existing Novel main transformer high-voltage bushing pressure alarm, alarm relay action is sent out " main transformer bushing pressure height signal ", attendant is needed to make out an invoice process, main transformer bushing venting process main employing nipper pliers and flat mouth rise carries out, alarm relay involution after venting, alarm signal disappears.500KV main transformer bushing pressure anomaly, according to operation portion monitoring system alarming signal, finds bushing pressure relief device, carries out troubleshooting.Existing main transformer bushing venting process, main employing nipper pliers and flat mouth rise carries out, and in existing equipment, air vent part has been damaged by nipper pliers and caused defect processing difficulty; And maintenance personal is work high above the ground when operation, and the bolt under dismantling from main transformer bushing easily drops, and maintenance difficulties is larger.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of main transformer bushing automatic air eliminator, effectively avoids the damage of main transformer bushing venting body, protection main electrical equipment security of operation.
The technical scheme that the utility model is taked is:
A kind of main transformer bushing automatic air eliminator, comprise motor, motor connection for transmission connecting rod, kinematic link end is provided with gear, and gear engages with the tooth mouth that screw rod is arranged, screw rod linking springs, and the non-return valve of bushing is withstood in described screw rod one end.Establish pressure sensor in described bushing, pressure sensor, motor, alarm connect monitoring loop.
A kind of main transformer bushing of the utility model automatic air eliminator is Automated condtrol means of deflation, effectively avoids the damage of main transformer bushing venting body.Non-automated can also be adopted to control, namely by mode of manually exitting: people, for pressing venting screw rod, reaches venting effect.
Accompanying drawing explanation
Fig. 1 is the utility model apparatus structure schematic diagram.
Embodiment
As shown in Figure 1, a kind of main transformer bushing automatic air eliminator, comprises motor 1, motor 1 connection for transmission connecting rod 2, kinematic link 2 end is provided with gear 3, and gear 3 engages with the tooth mouth 5 that screw rod 4 is arranged, screw rod 4 linking springs 6, spring 6 be enclosed within tooth mouth 5 is set screw rod 4 above.The non-return valve 7 of bushing is withstood in described screw rod 4 one end.Establish pressure sensor in described bushing, pressure sensor, motor 1, alarm connect monitoring loop.Monitoring loop described in the utility model: utilize main transformer bushing pressure alarm monitoring loop control mode of the prior art, the motor 1 of series connection one for suppressing in original monitoring loop.
A kind of main transformer bushing of the utility model automatic air eliminator, repack means of deflation of the prior art into spring structure, when attendant processes main transformer bushing Pressure Alarm, can avoid damaging main transformer bushing air vent, and the utility model adopts automatic air eliminator, after alarm relay action, relay drives node to close, motor 1 is worked, automatic deflation process; After being disposed, alarm relay involution, motor 1 auto-breaking, defect is disposed automatically.
When main transformer bushing pressure is more than 1.35bar, pressure sensor drive is often left node and is closed, and motor 1 is charged, and starter motor 1 is suppressed.Motor 1 drives screw rod 4 to move forward by kinematic link 2 and gear 3, makes spring 6 pressure store simultaneously, and backs down the non-return valve 7 of bushing with screw rod 4, thus reaches the object of venting.After venting is disposed, alarm signal disappears, and pressure sensor often leaves node and disconnects, motor 1 dead electricity, and spring 6 back moves, and the non-return valve 7 of bushing is closed, and alarm signal disappears and involution, and main transformer bushing pressure alarm is disposed automatically.
Claims (2)
1. a main transformer bushing automatic air eliminator, comprise motor (1), it is characterized in that, motor (1) connection for transmission connecting rod (2), kinematic link (2) end is provided with gear (3), gear (3) engages with the upper tooth mouth (5) arranged of screw rod (4), and screw rod (4) linking springs (6), the non-return valve (7) of bushing is withstood in described screw rod (4) one end.
2. a kind of main transformer bushing automatic air eliminator according to claim 1, is characterized in that, establish pressure sensor in described bushing, and pressure sensor, motor (1), alarm connect monitoring loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737646.3U CN204178854U (en) | 2014-12-01 | 2014-12-01 | A kind of main transformer bushing automatic air eliminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737646.3U CN204178854U (en) | 2014-12-01 | 2014-12-01 | A kind of main transformer bushing automatic air eliminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178854U true CN204178854U (en) | 2015-02-25 |
Family
ID=52567641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420737646.3U Expired - Fee Related CN204178854U (en) | 2014-12-01 | 2014-12-01 | A kind of main transformer bushing automatic air eliminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204178854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747804A (en) * | 2021-01-22 | 2021-05-04 | 中国长江电力股份有限公司 | Photoelectric non-contact power transformer oil conservator oil level monitoring device and method |
-
2014
- 2014-12-01 CN CN201420737646.3U patent/CN204178854U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747804A (en) * | 2021-01-22 | 2021-05-04 | 中国长江电力股份有限公司 | Photoelectric non-contact power transformer oil conservator oil level monitoring device and method |
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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: 20150225 Termination date: 20181201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |