CN103745873B - A kind of electric power charged intelligent making-up air device of SF6 circuit breaker and supplementing method for air thereof - Google Patents
A kind of electric power charged intelligent making-up air device of SF6 circuit breaker and supplementing method for air thereof Download PDFInfo
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- CN103745873B CN103745873B CN201410040603.4A CN201410040603A CN103745873B CN 103745873 B CN103745873 B CN 103745873B CN 201410040603 A CN201410040603 A CN 201410040603A CN 103745873 B CN103745873 B CN 103745873B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001502 supplementing effect Effects 0.000 title claims description 7
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 238000005273 aeration Methods 0.000 claims abstract description 18
- 238000005516 engineering process Methods 0.000 claims description 4
- 241000168254 Siro Species 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The present invention relates to the charged intelligent making-up air device of a kind of electric power SF6 circuit breaker and method, this device comprises the gas cylinder having SF6 gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with pressure-reducing valve, the supervisor of described three connecting pipes connects pressure-reducing valve by tonifying Qi electromagnetically operated valve, one branched pipe of described three connecting pipes is provided with pressure sensor, electro connecting pressure gauge and safety valve, and connect tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg other end connects the operating electric power SF6 circuit breaker Air filling and discharging valves needing tonifying Qi, another branched pipe of described three connecting pipes is provided with by-pass valve, described tonifying Qi electromagnetically operated valve and pressure sensor are electrically connected at control module, described tonifying Qi electromagnetically operated valve is also electrically connected at electro connecting pressure gauge, described electro connecting pressure gauge is also electrically connected with alarm.Present invention, avoiding the deficiency of traditional making-up air device, realize safe, reliable, efficient, accurate, save, the charged tonifying Qi work of environmental protection.
Description
Technical field
The present invention relates to the charged intelligent making-up air device of a kind of electric power SF6 circuit breaker and supplementing method for air thereof.
Background technology
Operating electric power SF6 circuit breaker, when its inner SF6 gas pressure reduces to a certain extent, serious accident can be there is when carrying out breaking-closing operating not due to insulation and arc extinguishing ability, even cause the serious consequence that switch explodes, therefore operating electric power SF6 circuit breaker should carry out tonifying Qi in time when its inner SF6 gas pressure is not enough.Electric power SF6 circuit breaker tradition tonifying Qi mode, mostly by artificial aerating valve hand-manipulated, steadily cannot to releive tonifying Qi according to the SF6 gas pressure of SF6 circuit breaker internal, may neglect due to staff in tonifying Qi process, superfeed pressure is too large, cause gas shock in SF6 power circuit breaker in charging operation, and cause the accident of electric power SF6 circuit breaker, the danger of even exploding, it also avoid as tonifying Qi bleed pressure is not enough, cause and pour out gas, the accident of electric power SF6 circuit breaker in charging operation can be caused equally, the danger of even exploding.Owing to being Artificial Control, aerating occurs sometimes excessive, then again by direct for unnecessary SF6 gas emptying air, (electric power SF6 gas price is expensive to cause waste and environmental pollution, emptying meeting damages the ozone layer, and crosses some catabolite of SF6 gas through arc extinguishing and have severe toxicity in switch).
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, namely a kind of the charged intelligent making-up air device of electric power SF6 circuit breaker and the supplementing method for air thereof that can realize charged online tonifying Qi are provided.
To achieve these goals, technical scheme one of the present invention is: the charged intelligent making-up air device of a kind of electric power SF6 circuit breaker, comprise the gas cylinder having SF6 gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with pressure-reducing valve, the supervisor of described three connecting pipes connects pressure-reducing valve by tonifying Qi electromagnetically operated valve, one branched pipe of described three connecting pipes is provided with pressure sensor, electro connecting pressure gauge and safety valve, and connect tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg other end connects the operating electric power SF6 circuit breaker Air filling and discharging valves needing tonifying Qi, another branched pipe of described three connecting pipes is provided with by-pass valve, described tonifying Qi electromagnetically operated valve and pressure sensor are electrically connected at control module, described tonifying Qi electromagnetically operated valve is also electrically connected at electro connecting pressure gauge, described electro connecting pressure gauge is also electrically connected with alarm.
In above-mentioned technical scheme, the real-time gas pressure value in tonifying Qi electric power SF6 circuit breaker needed for described pressure sensor on-line checkingi, and be converted into digital signal transfers to control module; The digital signal that described control module is come according to pressure sensor transmission opens tonifying Qi electromagnetically operated valve automatically, and controls the open degree of tonifying Qi electromagnetically operated valve.
In above-mentioned technical scheme, the tonifying Qi limiting pressure value that described electro connecting pressure gauge presets according to it closes tonifying Qi electromagnetically operated valve automatically.
In above-mentioned technical scheme, the tonifying Qi limiting pressure value that described electro connecting pressure gauge presets according to it connects alarm automatically.
In above-mentioned technical scheme, described safety valve is opened automatically when air compensating system internal pressure exceedes the tonifying Qi limiting pressure value preset, and described safety valve cuts out automatically when air compensating system internal pressure drops to below the tonifying Qi limiting pressure value that presets.
To achieve these goals, technical scheme two of the present invention is: the charged intelligent supplementing method for air of a kind of electric power SF6 circuit breaker, the method adopts the charged intelligent making-up air device of electric power SF6 circuit breaker as above, and carry out according to the following steps: the joint of tonifying Qi connecting leg is connected the interface needing the operating electric power SF6 circuit breaker Air filling and discharging valves of tonifying Qi by (1), and now aeration valve is closed; When on the two compact siro spinning technology, the joint of described tonifying Qi connecting leg backs down electric power SF6 circuit breaker Air filling and discharging valves makes it open; (2) open aeration valve by predetermined comparatively minor valve aperture, make the SF6 gas in electric power SF6 circuit breaker pour making-up air device, open by-pass valve, so that air remaining for possibility in making-up air device, moisture are washed away; When after SF6 gas bleed making-up air device, close by-pass valve, prepare to carry out charged tonifying Qi; (3) standard-sized sheet aeration valve, opens the main valve of gas cylinder, opens and regulates pressure-reducing valve to predetermined force value, opening control module; Detect gas pressure in electric power SF6 circuit breaker by pressure sensor, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module opens tonifying Qi electromagnetically operated valve according to the pressure difference preset, and dynamically regulates its open degree to carry out steady tonifying Qi of releiving; When tonifying Qi is to the tonifying Qi limiting pressure value preset, described electro connecting pressure gauge closes tonifying Qi electromagnetically operated valve automatically, connects alarm equipment alarm simultaneously, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder, close pressure-reducing valve, close aeration valve, exit the joint that tonifying Qi connecting leg is connected with electric power SF6 circuit breaker Air filling and discharging valves, electric power SF6 circuit breaker Air filling and discharging valves is closed automatically, after opening by-pass valve pressure release, and tonifying Qi end-of-job.
Compared with prior art, the present invention has following beneficial effect: the deficiency that present invention, avoiding traditional making-up air device, achieve safe, reliable, efficient, accurate, save, the charged tonifying Qi work of environmental protection, no matter carry out under charging operation situation in the security reliability of tonifying Qi from guarantee electric power SF6 circuit breaker, or all have huge advantage from saving and environmental protection aspect.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the using state figure of the embodiment of the present invention.
Fig. 2 is the intelligent automatic control functional-block diagram of the embodiment of the present invention.
Fig. 3 is the control circuit figure of electro connecting pressure gauge design of pressure.
Fig. 4 is the main line map interlinking that electro connecting pressure gauge controls tonifying Qi electromagnetically operated valve, alarm.
In figure: 1-gas cylinder, 2-pressure-reducing valve, 3-tonifying Qi electromagnetically operated valve, 4-tri-connecting pipe, 5-by-pass valve, 6-alarm, 7-safety valve, 8-electro connecting pressure gauge, 9-pressure sensor, 10-aeration valve, 11-tonifying Qi connecting leg, 12-electric power SF6 circuit breaker Air filling and discharging valves, 13-electric power SF6 circuit breaker, A-high-voltage switch gear inlet wire, the outlet of B-high-voltage switch gear; DJ1-electro connecting pressure gauge pressure setting voltage limiting relay, K1-switch, C1-tonifying Qi electromagnetically operated valve, C2-alarm, N-ground connection, ∽ 220V-alternating current 220V.
Embodiment
As shown in Fig. 1 ~ 4, the charged intelligent making-up air device of a kind of electric power SF6 circuit breaker, comprise the gas cylinder 1 having SF6 gas, three connecting pipes 4 and tonifying Qi connecting leg 11, the outlet of described gas cylinder 1 is provided with pressure-reducing valve 2, the supervisor of described three connecting pipes 4 connects pressure-reducing valve 2 by tonifying Qi electromagnetically operated valve 3, one branched pipe of described three connecting pipes 4 is provided with pressure sensor 9, electro connecting pressure gauge 8 and safety valve 7, and connect tonifying Qi connecting leg 11 by aeration valve 10, described tonifying Qi connecting leg 11 other end connects the operating electric power SF6 circuit breaker Air filling and discharging valves 12 needing tonifying Qi, another branched pipe of described three connecting pipes 4 is provided with by-pass valve 5, described tonifying Qi electromagnetically operated valve 3 and pressure sensor 9 are electrically connected at control module, described tonifying Qi electromagnetically operated valve 3 is also electrically connected at electro connecting pressure gauge 8, described electro connecting pressure gauge 8 is also electrically connected with alarm 6.
In the present embodiment, described control module can carry out Based Intelligent Control tonifying Qi, real-time gas pressure value in tonifying Qi electric power SF6 circuit breaker 13 needed for described pressure sensor 9 energy on-line checkingi, and be converted into digital signal transfers to control module, the digital signal that described control module can be come according to pressure sensor 9 transmission opens tonifying Qi electromagnetically operated valve 3 automatically, and control the open degree of tonifying Qi electromagnetically operated valve 3, when pressure reduction is large, tonifying Qi electromagnetically operated valve 3 is opened greatly, vice versa, all the time to releive a little more than the constant pressure difference of electric power SF6 circuit breaker 13 internal system, steady tonifying Qi, avoiding traditional making-up air device may be too large due to superfeed pressure in tonifying Qi process, and cause gas shock in electric power SF6 circuit breaker 13 in charging operation, and cause electric power SF6 circuit breaker 13 accident, the danger of even exploding, it also avoid as tonifying Qi bleed pressure is not enough, cause and pour out gas, the accident of electric power SF6 circuit breaker 13 in charging operation can be caused equally, the danger of even exploding, the strong guarantee safe tonifying Qi work of electric power SF6 circuit breaker 13 under charging operation situation.
In the present embodiment, the tonifying Qi limiting pressure value that described electro connecting pressure gauge 8 can preset according to it closes tonifying Qi electromagnetically operated valve 3 automatically, and connection alarm 6 is reported to the police automatically, and described alarm 6 also can be arranged on a branched pipe of three connecting pipes 4; When making-up air device pressure reaches this setup pressure value, electro connecting pressure gauge 8 action, automatically closes tonifying Qi electromagnetically operated valve 3 and connects alarm 6 and send buzzing chimes of doom, notify staff tonifying Qi to rated pressure value.
In the present embodiment, when air compensating system internal pressure exceedes the tonifying Qi limiting pressure value preset, and now pressure sensor 9, electro connecting pressure gauge 8 break down, or dead electricity uncontrollable time, described safety valve 7 can open delivery system pressure automatically, pressure release, to ensure the safety of system, plays last pipe protection effect; Time below air compensating system pressure drop to set point, described safety valve 7 cuts out automatically.Described by-pass valve 5 is as the use of venting after the adapter of gas bleed interface, connecting leg and bypass.
As shown in Fig. 1 ~ 4, the charged intelligent supplementing method for air of a kind of electric power SF6 circuit breaker, the method adopts the charged intelligent making-up air device of electric power SF6 circuit breaker as above, and carries out according to the following steps:
(1) joint of tonifying Qi connecting leg 11 is connected the interface needing the operating electric power SF6 circuit breaker Air filling and discharging valves 12 of tonifying Qi, the aeration valve 10 now on tonifying Qi connecting leg 11 is closed; When on the joint of tonifying Qi connecting leg 11 and the interface compact siro spinning technology of electric power SF6 circuit breaker Air filling and discharging valves 12, namely back down electric power SF6 circuit breaker Air filling and discharging valves 12 and make it open;
(2) by the predetermined aeration valve 10 opened a little compared with minor valve aperture on tonifying Qi connecting leg 11, the SF6 gas in electric power SF6 circuit breaker 13 is made to pour making-up air device, open the by-pass valve 5 on three connecting pipes 4, air remaining for possibility in making-up air device, moisture to be washed away; When after SF6 gas bleed making-up air device, close the by-pass valve 5 on three connecting pipes 4, prepare to carry out charged tonifying Qi;
(3) aeration valve 10 on standard-sized sheet tonifying Qi connecting leg 11, opens the main valve of gas cylinder 1, opens and regulates pressure-reducing valve 2 to 1MPa(or determine pressure-reducing valve 2 pressure according to filling rated operating pressure in electric power SF6 circuit breaker 13), open control module; Detect gas pressure in electric power SF6 circuit breaker 13 system by pressure sensor 9, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module opens the tonifying Qi electromagnetically operated valve 3 on three connecting pipes 4 according to the pressure difference preset, and dynamically regulates its open degree, to carry out a little more than gas pressure in electric power SF6 circuit breaker 13 steady tonifying Qi of releiving all the time; When tonifying Qi is to the tonifying Qi limiting pressure value preset, described electro connecting pressure gauge 8 automatically closes tonifying Qi electromagnetically operated valve 3, connects alarm 6 simultaneously and reports to the police, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder 1, close pressure-reducing valve 2, close aeration valve 10, exit the joint that tonifying Qi connecting leg 11 is connected with electric power SF6 circuit breaker Air filling and discharging valves 12, electric power SF6 circuit breaker Air filling and discharging valves 12 is closed automatically, after opening by-pass valve 5 pressure release, and tonifying Qi end-of-job.
In the present embodiment, in step (1), the charged intelligent making-up air device of this electric power SF6 circuit breaker can Assembling, first the joint of tonifying Qi connecting leg 11 is connected the interface of electric power SF6 circuit breaker Air filling and discharging valves 12 during assembling, again by a branched pipe interface of the aeration valve 10 interface connecting tee connecting leg 4 of tonifying Qi connecting leg 11 other end, finally supervisor's interface of three connecting pipes 4 is connected on pressure-reducing valve 2 interface of high-pressure cylinder outlet by tonifying Qi electromagnetically operated valve 3.
In the present embodiment, in step (3), the charged intelligent making-up air device of this electric power SF6 circuit breaker can field stripping so that collection, after tonifying Qi connecting leg 11 and electric power SF6 circuit breaker Air filling and discharging valves 12 depart from and be connected, tonifying Qi connecting leg 11, three connecting pipe 4, tonifying Qi electromagnetically operated valve 3, pressure-reducing valve 2 etc. are removed, cases.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. the charged intelligent making-up air device of electric power SF6 circuit breaker, it is characterized in that: comprise the gas cylinder having SF6 gas, three connecting pipes and tonifying Qi connecting leg, the outlet of described gas cylinder is provided with pressure-reducing valve, the supervisor of described three connecting pipes connects pressure-reducing valve by tonifying Qi electromagnetically operated valve, one branched pipe of described three connecting pipes is provided with pressure sensor, electro connecting pressure gauge and safety valve, and connect tonifying Qi connecting leg by aeration valve, the described tonifying Qi connecting leg other end connects the operating electric power SF6 circuit breaker Air filling and discharging valves needing tonifying Qi, another branched pipe of described three connecting pipes is provided with by-pass valve, described tonifying Qi electromagnetically operated valve and pressure sensor are electrically connected at control module, described tonifying Qi electromagnetically operated valve is also electrically connected at electro connecting pressure gauge, described electro connecting pressure gauge is also electrically connected with alarm, real-time gas pressure value in tonifying Qi electric power SF6 circuit breaker needed for described pressure sensor on-line checkingi, and be converted into digital signal transfers to control module, the digital signal that described control module is come according to pressure sensor transmission opens tonifying Qi electromagnetically operated valve automatically, and controls the open degree of tonifying Qi electromagnetically operated valve, described safety valve is opened automatically when air compensating system internal pressure exceedes the tonifying Qi limiting pressure value preset, and described safety valve cuts out automatically when air compensating system internal pressure drops to below the tonifying Qi limiting pressure value that presets.
2. the charged intelligent making-up air device of electric power SF6 circuit breaker according to claim 1, is characterized in that: the tonifying Qi limiting pressure value that described electro connecting pressure gauge presets according to it closes tonifying Qi electromagnetically operated valve automatically.
3. the charged intelligent making-up air device of electric power SF6 circuit breaker according to claim 1, is characterized in that: the tonifying Qi limiting pressure value that described electro connecting pressure gauge presets according to it connects alarm automatically.
4. the charged intelligent supplementing method for air of electric power SF6 circuit breaker, it is characterized in that: the method adopts the charged intelligent making-up air device of electric power SF6 circuit breaker as claimed in claim 1, and carry out according to the following steps: the joint of tonifying Qi connecting leg is connected the interface needing the operating electric power SF6 circuit breaker Air filling and discharging valves of tonifying Qi by (1), and now aeration valve is closed; When on the two compact siro spinning technology, the joint of described tonifying Qi connecting leg backs down electric power SF6 circuit breaker Air filling and discharging valves makes it open; (2) open aeration valve by predetermined comparatively minor valve aperture, make the SF6 gas in electric power SF6 circuit breaker pour making-up air device, open by-pass valve, so that air remaining in making-up air device, moisture are washed away; When after SF6 gas bleed making-up air device, close by-pass valve, prepare to carry out charged tonifying Qi; (3) standard-sized sheet aeration valve, opens the main valve of gas cylinder, opens and regulates pressure-reducing valve to predetermined force value, opening control module; Detect gas pressure in electric power SF6 circuit breaker by pressure sensor, and detected real-time pressure value is converted to digital signal is sent to control module; Described control module opens tonifying Qi electromagnetically operated valve according to the pressure difference preset, and dynamically regulates its open degree to carry out steady tonifying Qi of releiving; When tonifying Qi is to the tonifying Qi limiting pressure value preset, described electro connecting pressure gauge closes tonifying Qi electromagnetically operated valve automatically, connects alarm equipment alarm simultaneously, remind staff tonifying Qi to rated pressure value; Close the main valve of gas cylinder, close pressure-reducing valve, close aeration valve, exit the joint that tonifying Qi connecting leg is connected with electric power SF6 circuit breaker Air filling and discharging valves, electric power SF6 circuit breaker Air filling and discharging valves is closed automatically, after opening by-pass valve pressure release, and tonifying Qi end-of-job.
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|---|---|---|---|
| CN201410040603.4A CN103745873B (en) | 2014-01-28 | 2014-01-28 | A kind of electric power charged intelligent making-up air device of SF6 circuit breaker and supplementing method for air thereof |
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| CN201410040603.4A CN103745873B (en) | 2014-01-28 | 2014-01-28 | A kind of electric power charged intelligent making-up air device of SF6 circuit breaker and supplementing method for air thereof |
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| CN103745873A CN103745873A (en) | 2014-04-23 |
| CN103745873B true CN103745873B (en) | 2015-10-14 |
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| CN104500968A (en) * | 2014-11-27 | 2015-04-08 | 国网河南省电力公司平顶山供电公司 | SF6 circuit breaker remote control online gas-replenishing and gas-bleeding system |
| CN104966647B (en) * | 2015-06-08 | 2017-08-11 | 国网新疆电力公司检修公司 | A kind of porcelain knob breaker mixed gas methods for filling |
| CN107610969B (en) * | 2017-08-22 | 2019-01-29 | 国网山东省电力公司济南供电公司 | A kind of breaker SF6 gas real time monitoring and electrification making-up air device |
| CN108443700A (en) * | 2018-02-02 | 2018-08-24 | 国网青海省电力公司西宁供电公司 | A kind of sulfur hexafluoride combined electric appliance gas charged for replacement control device |
| CN111668061B (en) * | 2019-03-05 | 2022-12-09 | 国家电网有限公司 | Explosion chamber disk seat and explosion chamber |
| CN111968878B (en) * | 2020-08-04 | 2022-06-28 | 北京中车赛德铁道电气科技有限公司 | Pneumatic control device for vacuum circuit breaker actuating mechanism for rail transit |
| CN113669619B (en) * | 2021-08-20 | 2022-12-27 | 国网浙江省电力有限公司检修分公司 | SF6 gas supplementing device and SF6 gas supplementing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2292095A (en) * | 1940-09-12 | 1942-08-04 | Gen Electric | Electric circuit breaker |
| DE2949879C2 (en) * | 1979-12-12 | 1987-07-16 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | |
| CN2609156Y (en) * | 2003-03-18 | 2004-03-31 | 李晋峰 | Sulfur hexafluoride circuit breaker automatic gas-supplementing device |
| CN2831394Y (en) * | 2005-06-06 | 2006-10-25 | 常州市人本电气有限公司 | Vacuum aerating device of SF high voltage circuit breaker |
| CN201549430U (en) * | 2009-06-04 | 2010-08-11 | 河南省电力公司濮阳供电公司 | Gas filling tool for SF6 breaker |
| CN103107042A (en) * | 2013-01-22 | 2013-05-15 | 上海乐研电气科技有限公司 | Sulfur hexafluoride high-voltage circuit breaker for cold region |
| CN203690199U (en) * | 2014-01-28 | 2014-07-02 | 国家电网公司 | Electric power SF6 breaker live-line intelligent gas supplementing device |
-
2014
- 2014-01-28 CN CN201410040603.4A patent/CN103745873B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2292095A (en) * | 1940-09-12 | 1942-08-04 | Gen Electric | Electric circuit breaker |
| DE2949879C2 (en) * | 1979-12-12 | 1987-07-16 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | |
| CN2609156Y (en) * | 2003-03-18 | 2004-03-31 | 李晋峰 | Sulfur hexafluoride circuit breaker automatic gas-supplementing device |
| CN2831394Y (en) * | 2005-06-06 | 2006-10-25 | 常州市人本电气有限公司 | Vacuum aerating device of SF high voltage circuit breaker |
| CN201549430U (en) * | 2009-06-04 | 2010-08-11 | 河南省电力公司濮阳供电公司 | Gas filling tool for SF6 breaker |
| CN103107042A (en) * | 2013-01-22 | 2013-05-15 | 上海乐研电气科技有限公司 | Sulfur hexafluoride high-voltage circuit breaker for cold region |
| CN203690199U (en) * | 2014-01-28 | 2014-07-02 | 国家电网公司 | Electric power SF6 breaker live-line intelligent gas supplementing device |
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