CN103594276B - Sulfur hexafluoride breaker gas intelligent compensation apparatus - Google Patents
Sulfur hexafluoride breaker gas intelligent compensation apparatus Download PDFInfo
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- CN103594276B CN103594276B CN201310605016.0A CN201310605016A CN103594276B CN 103594276 B CN103594276 B CN 103594276B CN 201310605016 A CN201310605016 A CN 201310605016A CN 103594276 B CN103594276 B CN 103594276B
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- gas
- air accumulator
- breaker
- temperature
- pressure
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910018503 SF6 Inorganic materials 0.000 title claims abstract description 11
- 229960000909 sulfur hexafluoride Drugs 0.000 title claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 58
- 230000002452 interceptive effect Effects 0.000 description 5
- 230000001629 suppression Effects 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to sulfur hexafluoride breaker gas intelligent compensation apparatus, described circuit breaker comprises at least one breaker body, this compensation arrangement comprises: be inside provided with gas and pump into and the air accumulator of pumping out system and controller, by tubes connection between described air accumulator and breaker body, described controller is electrically connected with air accumulator and pumps into and pumping out system for the gas controlled in air accumulator.This compensation arrangement ensures that the problem of low-temperature warning and locking does not appear in operating equipment.This device possesses the display of breaker body air pressure scene and background monitoring function, the tonifying Qi of body Micro blazed-grating, high temperature disappointing equal pressure Intelligent adjustment function automatically simultaneously, SF
6the multiple utility functions such as Leakage Gas prompting function.
Description
Technical field
The present invention relates to field of electrical equipment, particularly relate to a kind of sulfur hexafluoride breaker gas intelligent compensation apparatus.
Background technology
Sulphur hexafluoride (SF
6) be a kind of colorless and odorless, stable chemical nature, the material at normal temperatures and pressures in gaseous state, because it has extraordinary insulating capacity and arc extinguishing ability, therefore it is widely used in power equipment as dielectric and arc-extinguishing medium.Current electrical network SF
6circuit breaker displace oil circuit breaker comprehensively, 35kV and above, SF
6circuit breaker ratio reaches more than 98%.
But SF
6be a kind of large molecular gas, liquefaction point is high, at extremely frigid zones, when ambient temperature is reduced to-23 DEG C, and SF
6cause density to decline generation liquefaction, simultaneously arc control device ability and breaking capacity of breaker also corresponding reduction, when gas pressure reduces the locking pressure to circuit breaker, circuit breaker will be had to out of service.
Simultaneously due to breaker body sealing and variation of ambient temperature, usually can affect greatly breaker body gas pressure, when gas leakage or temperature reduce, breaker body pressure reduces even locking of reporting to the police, and needs manually to carry out tonifying Qi to scene.When temperature raises very fast, breaker body pressure raises, and when exceeding its setting, needs maintainer to arrive on-the-spot venting and ensures its rated pressure.
Because circuit breaker gas warning or locking cause great potential safety hazard to equipment and even safe operation of electric network, particularly low-temperature warning locking usually occurs in the late into the night or snowstorm etc. in winter under extreme weather conditions, once occur because of strong wind severe snow generation line fault during circuit breaker lock, will because of circuit breaker lock cannot action and overstep tripping, cause the accident expansion.
Summary of the invention
For solving above the deficiencies in the prior art, the invention provides a kind of sulfur hexafluoride breaker gas intelligent compensation apparatus, not reporting to the police and the problem of locking to solve equipment emerged in operation low temperature.
Object of the present invention is achieved through the following technical solutions:
Sulfur hexafluoride breaker gas intelligent compensation apparatus, described circuit breaker comprises at least one breaker body, this compensation arrangement comprises: be inside provided with gas and pump into and the air accumulator of pumping out system and controller, by tubes connection between described air accumulator and breaker body, described controller is electrically connected with air accumulator and pumps into and pumping out system for the gas controlled in air accumulator.
Described gas pumps into and pumping out system comprises the safety valve, air pump and the logical block that connect successively, is provided with electromagnetically operated valve and receives the signal from described controller, control the operation of air pump in this logical block.
Described built in gas tank has thermostat and heater.
The outside of described air accumulator is provided with temperature sensor and the first pressure sensor.
Described conduit is provided with the second pressure sensor.
The invention has the advantages that:
Apparatus of the present invention, by type of respiration mode of heating, make the intelligence of breaker body gas and auxiliary gas tank gas exchange, and improve SF
6breaker body gas temperature, ensures that the problem of low-temperature warning and locking does not appear in operating equipment.This device possesses the display of breaker body air pressure scene and background monitoring function, the tonifying Qi of body Micro blazed-grating, high temperature disappointing equal pressure Intelligent adjustment function automatically simultaneously, SF
6the multiple utility functions such as Leakage Gas prompting function.
Accompanying drawing explanation
Fig. 1: structure principle chart of the present invention;
Fig. 2: application implementation figure of the present invention.
Embodiment
Be illustrated in figure 1 SF of the present invention
6circuit breaker gas intelligent compensation apparatus structure principle chart, breaker body 1 is provided with in arc control device in figure, this compensation arrangement is provided with gas and pumps into and the air accumulator 2 of pumping out system and controller 3 in also comprising, connected by conduit 4 between described air accumulator 2 and breaker body 1, described controller 3 is electrically connected with air accumulator 2 and pumps into and pumping out system for the gas controlled in air accumulator.
Described gas pumps into and pumping out system comprises the safety valve 5, air pump 6 and the logical block 7 that connect successively, and air pump 6 and safety valve 5, logical block 7 are arranged in air accumulator 2, and controller 3 is arranged on gas tank side, is connected with air pump and logical block by cable.Logical block 7 is built with electromagnetically operated valve, after pressure sensor 12 sends the rising of breaker body gas pressure or reduction signal, open unidirectional air pump by controller 3 cable that is energized, and opened by the electromagnetically operated valve in control logic unit or closedly realize gas and pump into or pump.When the improper rising of gas pressure in air pump, after exceeding setting pressure, gases at high pressure are bled off protective device safety by safety valve startup.
Thermostat 8 and heater 9 is also provided with in described air accumulator 2.The outside of this air accumulator 2 is provided with temperature sensor 10 and pressure sensor 11.Described conduit 4 is provided with the second pressure sensor 12.
Described pressure sensor 11,12 is responsible for monitoring breaker bulk density and reservoir pressure respectively, is changed by pressure, is responsible for controlling air pump 6 by SF by controller 3
6gas pumps into or pumps breaker body.Reservoir pressure monitored by pressure sensor 12, sends signal when pressure decreases and reminds maintainer's tonifying Qi.
Described temperature sensor 10,13 is monitoring of environmental temperature and air accumulator temperature respectively, when ambient temperature is lower than subzero five degrees Celsius, drops into heater, gas temperature in heating air accumulator.When gas temperature in tank body reaches 60 degrees Celsius, thermostat 8 starts disconnection heater.From new heater when temperature is reduced to 50 degrees Celsius.
Be illustrated in figure 2 application implementation figure of the present invention.Mode of operation of the present invention is divided into normal interworking mode and low temperature to breathe interactive mode.
Normal interworking mode operation logic is as follows:
When ambient temperature is higher than-5 DEG C, " SF
6circuit breaker gas intelligent compensation apparatus " be in normal interworking mode; namely judge breaker body pressure by bulk density checkout gear; when breaker body pressure is below or above rated value; pumped into by air pump or pump breaker body by gas in device gas tank, thus ensure circuit breaker normal pressure.
In actual applications, circuit breaker is often because the conversion of temperature or the seepage of gas can cause body internal pressure higher or on the low side, maintainer is needed to make a special trip to a certain place on-the-spot tonifying Qi, particularly circuit breaker generation bulk gas is micro-when oozing situation, usually before maintenance, needs maintainer's repeatedly tonifying Qi because equipment can not have a power failure in time.By circuit breaker gas intelligent compensation system, can adjust bulk gas pressure in real time, greatly reduce the on-the-spot tonifying Qi number of times of maintainer, reduce the working strength of maintainer to greatest extent.
It is as follows that low temperature breathes interactive mode operation logic:
When ambient temperature is lower than-5 DEG C, " SF
6circuit breaker gas intelligent compensation apparatus " be in low temperature and breathe interworking mode; even if with the heater of power about 500W; by gas-heated in device gas tank; when gas temperature reaches about 60 DEG C; by air pump by heating afterwards gas pump into breaker body; make bulk gas pressure reach rated value and reach the standard grade, after cold and hot gas fully mixes, utilize air pump bulk gas to be pumped into system gas tank and reheat.System is passed through to breathe principle, by the SF after heating
6gas brings arc control device into, then returns in system gas tank from arc control device extraction cold air and heats, and so forth.Improve breaker body gas temperature, thoroughly gas liquefaction problem during solution circuit breaker low temperature.
When ambient temperature is higher than-5 DEG C, low temperature is breathed interactive mode and is automatically transferred the operation of normal interactive mode to.
In actual applications, when transformer station's temperature is lower than subzero about 30 degree, can there is liquefaction and cause bulk gas pressure warning on the low side even locking in breaker body gas, cause great potential safety hazard to operation of power networks usually.And circuit breaker gas intelligent compensation apparatus can be heated by type of respiration, make gas temperature in breaker body remain on a higher temperature levels, stop, because gas liquefaction causes circuit breaker to report to the police or the situation of locking, to provide guarantee to electric power netting safe running.
During normal work, detect breaker body pressure in real time by pressure sensor 1, ensure that breaker body pressure is in nominal value range by pumping into or pump gas.
When ambient temperature is lower than-5 DEG C, low temperature is breathed interactive mode and is started;
Start the SF to air storage chamber
6gas heats, and when air storage chamber pressure reaches 0.53MPa, booster air pump, air storage chamber gas to SF
6arc control device supplement;
When arc suppression chamber pressure higher than 0.52MPa or reservoir pressure lower than 0.48Mpa time, air pump reverses, and arc control device gas is extracted in air storage chamber;
When air storage chamber pressure recover is to 0.5MPa, air pump stops, and to air storage chamber gas-heated, after pressure is higher than 0.53MPa, repeats a work step, and so forth;
When ambient temperature rises, during higher than-5 DEG C, return to normal mode of operation;
Whole course of work possibility a couple of days, possibility one month, system makes arc suppression chamber pressure maintain in nominal value range all the time.
Connect the device to LW36-126 circuit breaker simulation air chamber; Auto Power On temperature is-5 DEG C, power-on, and equipment enters Autoattendant state; The following table is the self registering sensing data of equipment.
Date-time ambient temperature conditions arc suppression chamber pressure reservoir pressure
2012-01-153:59-5.000 does not start 0.4650.467
2012-01-154:0-5.000 does not start 0.4650.467
2012-01-154:1-5.000 does not start 0.4650.467
2012-01-154:2-5.000 does not start 0.4650.467
2012-01-154:3-5.000 does not start 0.4650.467
2012-01-154:4-5.000 does not start 0.4650.467
2012-01-154:5-5.000 does not start 0.4650.467
2012-01-154:6-5.100 start 0.4650.464
2012-01-154:7-5.100 start 0.4650.464
2012-01-154:8-5.100 start 0.4650.464
2012-01-154:9-5.100 start 0.4660.464
2012-01-154:10-5.100 start 0.4670.464
2012-01-154:11-5.100 start 0.4670.464
2012-01-154:12-5.100 start 0.4690.464
2012-01-154:13-5.100 start 0.4690.464
2012-01-154:14-5.100 start 0.4720.463
2012-01-154:15-5.100 start 0.4720.463
2012-01-154:16-5.100 start 0.4720.463
Should be appreciated that above is illustrative and not restrictive by preferred embodiment to the detailed description that technical scheme of the present invention is carried out.Those of ordinary skill in the art can modify to the technical scheme described in each embodiment on the basis of reading specification of the present invention, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. sulfur hexafluoride breaker gas intelligent compensation apparatus, described circuit breaker comprises at least one breaker body, it is characterized in that, this compensation arrangement comprises: be inside provided with gas and pump into and the air accumulator of pumping out system and controller, tubes connection is passed through between described air accumulator and breaker body, described controller is electrically connected with air accumulator and pumps into and pumping out system for the gas controlled in air accumulator, described gas pumps into and pumping out system comprises the safety valve connected successively, air pump and logical block, be provided with electromagnetically operated valve in this logical block and receive the signal from described controller, control the operation of air pump, thermostat and heater is also provided with in described air accumulator, the outside of this air accumulator is provided with temperature sensor and pressure sensor, described conduit is provided with the second pressure sensor, pressure sensor and the second pressure sensor are responsible for monitoring breaker bulk density and reservoir pressure respectively, changed by pressure, be responsible for controlling air pump by controller SF6 gas pumped into or pumps breaker body, second pressure sensor monitoring reservoir pressure, send signal when pressure decreases and remind maintainer's tonifying Qi, described temperature sensor monitors ambient temperature and air accumulator temperature, when ambient temperature is lower than subzero five degrees Celsius, drop into heater, gas temperature in heating air accumulator, when gas temperature in tank body reaches 60 degrees Celsius, thermostat starts disconnection heater, heater is reopened when temperature is reduced to 50 degrees Celsius.
2. sulfur hexafluoride breaker gas intelligent compensation apparatus according to claim 1, it is characterized in that, described built in gas tank has thermostat and heater.
3. sulfur hexafluoride breaker gas intelligent compensation apparatus according to claim 2, is characterized in that, the outside of described air accumulator is provided with temperature sensor and the first pressure sensor.
4. sulfur hexafluoride breaker gas intelligent compensation apparatus according to claim 3, it is characterized in that, described conduit is provided with the second pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605016.0A CN103594276B (en) | 2013-11-26 | 2013-11-26 | Sulfur hexafluoride breaker gas intelligent compensation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605016.0A CN103594276B (en) | 2013-11-26 | 2013-11-26 | Sulfur hexafluoride breaker gas intelligent compensation apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103594276A CN103594276A (en) | 2014-02-19 |
| CN103594276B true CN103594276B (en) | 2016-04-13 |
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|---|---|---|---|
| CN201310605016.0A Active CN103594276B (en) | 2013-11-26 | 2013-11-26 | Sulfur hexafluoride breaker gas intelligent compensation apparatus |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105551898B (en) * | 2016-02-18 | 2017-10-20 | 常州市吉士电器有限公司 | Single-pole double throw D.C. contactor |
| CN105576545A (en) * | 2016-02-22 | 2016-05-11 | 江苏亿能电气有限公司 | Online intelligent voltage stabilizing system of SF6 ring main unit |
| 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 |
| CN108521093A (en) * | 2018-04-13 | 2018-09-11 | 广东电网有限责任公司 | A kind of the O＆M device and application method of SF6 air insulating devices |
| CN110107801B (en) * | 2019-04-30 | 2024-06-28 | 国网江苏省电力有限公司常州供电分公司 | All-day candidate gas device suitable for GIS equipment with multiple intervals and multiple leakage points |
| CN111986446B (en) * | 2020-07-23 | 2022-04-22 | 浙江树人学院（浙江树人大学） | Remote control's atmospheric pressure temperature alarm device |
| CN114093711B (en) * | 2021-11-11 | 2024-05-28 | 江苏大烨智能电气股份有限公司 | Environment-friendly gas-insulated circuit breaker switch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1593617A (en) * | 1968-11-06 | 1970-06-01 | ||
| DE102012005463A1 (en) * | 2012-03-20 | 2013-09-26 | Rwe Deutschland Ag | Method for testing a gas-insulated high-voltage electrical equipment, in particular for testing an SF6-filled high-voltage circuit breaker, and circuit arrangement comprising at least one high-voltage electrical operating means with an insulating gas filling |
| 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 |
| CN203573894U (en) * | 2013-11-26 | 2014-04-30 | 国家电网公司 | Intelligent gas compensation device of sulfur hexafluoride breaker |
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- 2013-11-26 CN CN201310605016.0A patent/CN103594276B/en active Active
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