CN106971899A - One kind prevents the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing media - Google Patents
One kind prevents the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing media Download PDFInfo
- Publication number
- CN106971899A CN106971899A CN201710310032.5A CN201710310032A CN106971899A CN 106971899 A CN106971899 A CN 106971899A CN 201710310032 A CN201710310032 A CN 201710310032A CN 106971899 A CN106971899 A CN 106971899A
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- Prior art keywords
- temperature
- arc
- breaker
- heating tape
- vision
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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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/021—Use of solid insulating compounds resistant to the contacting fluid dielectrics and their decomposition products, e.g. to SF6
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
One kind prevents the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing media, is related to field of high-voltage electrical equipment.It is contemplated that effectively lifting SF6 arc-extinguishing chamber of circuit breaker arc-extinguishing medium temperature and operating mechanism operating ambient temperature, the system is by heating tape unit, temperature vision-control unit, temperature acquisition transmission unit, self-energy power subsystem is constituted, temperature acquisition transmission unit transmits arc-chutes and breaker crossbeam case temperature data to temperature vision-control unit in wireless form, temperature vision-control unit handles comparing simultaneously, driving subsequent heat band circuit is adjusted to arc-chutes and breaker crossbeam the temperature inside the box, the system forms closed-loop control, effectively lift SF6 arc-extinguishing chamber of circuit breaker arc-extinguishing medium temperature and operating mechanism operating ambient temperature, improve breaker job stability.
Description
Technical field
The present invention relates to electric field, predominantly one kind prevents the liquefied intelligence of extremely frigid zones SF6 breaker arc extinguishing media
Temperature control system.
Technical background
SF6 gases are widely used in high voltage due to its excellent insulation, arc extinction performance and higher electric strength
In equipment.China is vast in territory, the North and South temperature difference is big, in some frosts frequently extremely frigid zones, winter some areas it is minimum
Reachable -40 DEG C of temperature, even up to -50 DEG C of some areas, the condensing temperature of SF6 gases is higher, limits it in extremely frigid zones
Application, such as 0.1 MPa and 0.6 MPa when SF6 gases condensing temperature respectively may be about -64 DEG C and -25 DEG C, SF6 liquefies
Gas pressure is reduced in phenomenon, arc-chutes, and at this moment SF6 arc extinguishings ability and dielectric level are decreased obviously, and cause the insulation of breaker
Performance and connecting-disconnecting function decline, and cause breaker to be unable to normal operating when serious, influence electric power netting safe running.Carry out extremely frigid zones
The technical research of SF6 breaker arc extinguishing medium Liquefactions, it is possible to reduce caused by causing SF6 gas liquefactions due to temperature reduction
The probability for the large area blackout that circuit breaker lock or failure of interruption are caused, improves circuit operational reliability.
Country's extremely frigid zones mainly use outside heating tape heating arrangement to be heated for breaker at present, but are due to breaker
Structure problem, the heating tape installation site of use is distant apart from arc-chutes, heat utilization efficiency is not high and circuit breaker internal without
Temperature collecting cell can not accurately monitor arc-chutes medium temperature, and arc-chutes temperature control effect is not good, and excessive temperature differentials does not have
The problems such as accurate temperature control system, this is also that traditional heating structure can not solve extremely frigid zones SF6 breaker arc extinguishing media very well
The main cause of Liquefaction, the design attempts new thinking, designs comprehensive temperature control system and effective heating arrangement.
The content of the invention
The liquefied intelligence of extremely frigid zones SF6 breaker arc extinguishing media is prevented the technical problem to be solved in the present invention is to provide one kind
Can temperature control system；Build effective extremely frigid zones SF6 arc-extinguishing chamber of circuit breaker heating arrangements；Temperature of the design with considerable controllable function
Control system is spent, by the setting to initial temperature, automatic switching heating arrangement effectively prevents breaker arc extinguishing medium from liquid occur
Change.
The present invention technology contents be：
Heating is designed with the arc-chutes top inner wall of primary cut-out, support insulator inner cavity top, breaker crossbeam case
Arc-chutes top inner wall is close in heating tape with sheet at the top of band, arc-chutes, and arc-chutes top cover outer wall parcel thermal insulation layer, pillar is exhausted
Heating tape is located at support insulator inner cavity top at the top of edge, and operating mechanism outer container heating tape is wrapped in outside breaker crossbeam case
Side；Heating tape is directly taken at the top of energy, support insulator and actuating machine by self-energy power subsystem from high voltage bus at the top of arc-chutes
Structure crossbeam heating tape is powered by near end power supply, at the top of support insulator heating tape supply lines inside support insulator by with
Near-earth power supply is connected；Heating tape is brought into close contact by carrier of silicon rubber with breaker, improves its operating efficiency；
The intelligent temperature control system is main by temperature acquisition transmission unit, temperature vision-control unit, heating tape unit and self-energy
Power subsystem is constituted.Temperature data is simultaneously wirelessly transmitted to temperature vision-control unit and entered by temperature acquisition transmission unit collecting temperature
Trip temperature is shown.Meanwhile, temperature vision-control unit is analyzed and processed to the data received and entered with preset temperature range
Row compares, and then drives subsequent heat tape cell that breaker plenum interior temperature is adjusted according to actual conditions, forms temperature
The closed loop configuration of observing and controlling is spent, the reliability and stability of temperature system are lifted.
Temperature acquisition transmission unit is made up of Temperature sampler, microprocessor, wireless launcher, power supply.Power supply is temperature
Sensor and microprocessor energy supply, Temperature sampler collection breaker temperature and output temperature data are at microprocessor
Reason, then sends through wireless launcher, and collecting temperature data to temperature vision-control unit using wireless receiver carries out data
Display and com-parison and analysis, then carry out subsequent conditioning circuit driving；The main purpose of temperature vision-control unit is preferably to show
The temperature of breaker plenum interior, and breaker plenum interior temperature is effectively adjusted, so temperature display section point will
Good human-computer interaction function and visual effect are asked, obvious alarm signal can be sent so as to the people that works by running into emergency
Member discovers.The unit is designed with the display screen that temperature is intuitively shown, temperature can be set by the regulation of simple button,
It is easy to operate.
The system is realized on the basis of above-mentioned technology, and initial minimum temperature is set by temperature vision-control unit
And maximum temperature, digital temperature acquisition device collection breaker diverse location temperature, then temperature is believed using Radio Transmission Technology
Breath is transferred to temperature vision-control unit, and temperature real time data is intuitively shown that temperature is shown by the unit using display screen
The temperature information received is compared by adjustment unit acp chip with default temperature minimum value and maximum, works as taking temperature
During less than minimum, temperature control vision-control unit conducting heating charged makes heating tape work, and changes arc extinguishing room temperature, works as temperature
When rising to preset value maximum, temperature vision-control unit cut-out heating charged stops heating, when temperature is reduced to minimum
Restart heating charged, be so repeated, form the real-time regulation that breaker temperature is realized in closed-loop control, it is ensured that SF6It is disconnected
Road device arc-extinguishing medium occurs without liquefaction phenomenon, ensures that operating mechanism lubricating oil does not freeze, and has ensured breaker safe operation.
Present invention has the advantages that setting effectively solution high in the closed-loop control and rational heating tape adjusted using temperature control
Cold area SF6Breaker arc extinguishing medium Liquefaction, breaker top design self-energy power subsystem simplifies that scene is high-order to be supplied
Electrically, improve breaker working environment clean and tidy, strengthen safe operation, the setting of heating tape effectively solve arc-extinguishing medium liquefaction and
The problem of operating mechanism lubricating oil freezes.Breaker temperature collector uses digital temperature sensor, high accuracy, improves system
Temperature control accuracy, the temperature information that Temperature sampler is collected is sent to temperature vision-control unit in wireless form, carries
High system rejection to disturbance, it is ensured that the accuracy of data transfer, temperature vision-control unit passes through using high-precision chip as core
The initial value setting of temperature is realized in simple button regulation, the temperature information for being transmitted back to is compared with setting value initial value, then
Acp chip control subsequent heat band circuit carries out arc-chutes and operating mechanism operating temperature is adjusted.
Brief description of the drawings
Fig. 1 is breaker intelligent temperature control system structural representation；
Fig. 2 temperature acquisitions are wirelessly transferred flow chart；
In figure：
1 arc-extinguishing chamber of circuit breaker；2 support insulators；Heating tape at the top of 3 arc-chutes；
Heating tape at the top of 4 support insulators；5 crossbeam case external heating bands；
6 temperature vision-control units；7 temperature acquisition transmission units；8 self-energy power modules；
9 taking energy coils；10 high voltage bus；11 operation cabinets；
12 circuit breaker base pillars；13 breaker crossbeam casees；14 collets；
15 Temperature samplers；16 microprocessors；17 wireless launchers；18 power supplys.
Embodiment
Describe the instantiation of the present invention in detail below in conjunction with technical scheme and accompanying drawing.
During temperature control system normal work, first through temperature vision-control unit（6）Carry out arc-extinguishing chamber of circuit breaker（1）And open circuit
Device crossbeam case（13）Target temperature minimum and peak setting, such as minimum temperature is set to 0 DEG C, and maximum temperature is set to 20
℃.While temperature acquisition transmission unit（7）Start working, Temperature sampler（15）Arc-extinguishing chamber of circuit breaker is detected in real time（1）Top,
Support insulator（2）Internal, breaker crossbeam case（13）Internal temperature, Temperature sampler（15）Temperature data is transferred to micro-
Processor（16）Data processing is carried out, then through wireless launcher（17）Synchronous transfer, which is given, to be located in operation cabinet（11）Temperature show
Show adjustment unit（6）, then temperature vision-control unit（6）To the temperature data that receives with minimum value set in advance and maximum
Value is compared in real time, when the temperature of transmission is less than 0 DEG C, temperature vision-control unit（6）Enable heating tape at the top of arc-chutes
（3）With heating tape at the top of support insulator（7）Power supply relay, turn-on power circuit now heated at the top of arc-chutes
Band（3）, support insulator top heating tape（4）Simultaneously to arc-extinguishing chamber of circuit breaker（1）Heating, heating tape is by way of heat transfer
By heat diffusion to arc-extinguishing chamber of circuit breaker（1）Inside, so as to change the temperature of arc-extinguishing medium, when temperature acquisition transmission unit（7）
When being transmitted back to the temperature come higher than 20 DEG C, temperature vision-control unit（6）Cut off heating tape at the top of arc-chutes（3）And post insulator
Sub- top heating tape（7）Power supply, stops heating.
Similarly, when breaker crossbeam case（13）Interior temperature acquisition transmission unit（7）The temperature passed back is minimum less than setting
During value, temperature vision-control unit（6）Enable breaker crossbeam case（13）External heat tape relay, turn-on power, to breaker
Crossbeam case（13）Heated, when internal temperature reaches setting temperature maximum, temperature vision-control unit（6）Cut-out heating
Charged, stops heating, makes operating mechanism lubricating oil occur without freezeout in cold environments, ensures the reliable dynamic of breaker
Make.
By aforesaid operations, temperature control system formation closed control loop strengthening system is stable, rational heating tape position, temperature
The real-time detection feedback of degree, improves heating tape operating efficiency, it is ensured that the preference temperature of arc-chutes and operating mechanism working environment.
Claims (3)
1. one kind prevents the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing media, it is characterised in that：The system by
Heating tape unit, temperature acquisition transmission unit, temperature vision-control unit, self-energy power subsystem composition, heating tape is respectively
Heating tape at the top of arc-chutes（3）, heating tape at the top of support insulator（4）, crossbeam case external heating bands（5）, heating tape is by resistance
Heating tape at the top of silk adhesion layer, heating resistance wire, insulated conductor, relay, power interface composition, arc-chutes（3）It is tight with sheet
It is affixed on arc-extinguishing chamber of circuit breaker（1）Top inner wall, arc-chutes top cover outer wall parcel collet（14）, support insulator top heating tape
（4）Positioned at support insulator（2）Inner cavity top, crossbeam case external heating bands（5）It is wrapped in breaker crossbeam case（13）Outer wall, goes out
Heating tape at the top of arc chamber（3）By self-energy power subsystem directly from high voltage bus（10）Take heating tape at the top of energy, support insulator
（4）With crossbeam case external heating bands（5）By near end, power supply is powered, heating tape at the top of support insulator（4）Supply lines is from pillar
Insulator（2）Inside with near-earth power supply by being connected；Self-energy power subsystem is by self-energy power module（8）, taking energy coil（9）
Composition, taking energy coil（9）From high voltage bus（10）Take can after through self-energy power module（8）Export 200-300 adjustable voltages.
2. one kind according to claim 1 prevents the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing media,
It is further characterized in that：Temperature vision-control unit（6）Positioned at operation cabinet（11）In, by display screen, microprocessor, wireless receiver
Composition, temperature acquisition transmission unit（7）By Temperature sampler（15）, power supply（18）, microprocessor（16）, wireless launcher（17）
Composition, positioned at arc-extinguishing chamber of circuit breaker（1）Outer bottom, support insulator（2）Intracavity bottom, breaker crossbeam case（13）It is interior, pass through
Wireless transceiver receives temperature acquisition transmission unit（7）The real time temperature data being transmitted back to.
3. one kind according to claim 1 or right 2 prevents the liquefied intelligent temperature of extremely frigid zones SF6 breaker arc extinguishing media
Control system, is further characterized in that：Temperature vision-control unit（6）With temperature acquisition transmission unit（7）Between pass in a wireless form
Defeated temperature information, Temperature sampler（15）Gather arc-extinguishing chamber of circuit breaker（1）Bottom and support insulator（2）Inner chamber temperature is simultaneously exported
Temperature data is to microprocessor（16）Handled, then through wireless launcher（17）Send, temperature is collected using wireless receiver
Degrees of data is to temperature vision-control unit（6）, when the temperature of collection is less than design temperature minimum, temperature vision-control unit
（6）Heating tape relay conducting heating charged is enabled to be heated, when the temperature of collection is higher than initial temperature peak, temperature
Spend vision-control unit（6）Heating tape relay cut-out heating charged is enabled, stops heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310032.5A CN106971899B (en) | 2017-05-05 | 2017-05-05 | One kind preventing the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310032.5A CN106971899B (en) | 2017-05-05 | 2017-05-05 | One kind preventing the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106971899A true CN106971899A (en) | 2017-07-21 |
| CN106971899B CN106971899B (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710310032.5A Expired - Fee Related CN106971899B (en) | 2017-05-05 | 2017-05-05 | One kind preventing the liquefied intelligent temperature control system of extremely frigid zones SF6 breaker arc extinguishing medium |
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| Country | Link |
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| CN (1) | CN106971899B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287274A (en) * | 2017-12-18 | 2018-07-17 | 国网内蒙古东部电力有限公司检修分公司 | The fault detect positioning device and method of GIS heating devices under a kind of low temperature |
| CN112614731A (en) * | 2020-12-29 | 2021-04-06 | 福建省交建集团厦门雷耀电气科技有限公司 | SF6 load switch with heating function |
| CN113163526A (en) * | 2021-04-28 | 2021-07-23 | 国网冀北电力有限公司检修分公司 | Heating control system and method |
| CN113345757A (en) * | 2021-05-13 | 2021-09-03 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | SF (sulfur hexafluoride)6Far-end infrared heating device of circuit breaker |
| CN114724884A (en) * | 2022-05-10 | 2022-07-08 | 国网新疆电力有限公司塔城供电公司 | Low-temperature liquefaction prevention device for porcelain column type circuit breaker |
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| CN201242969Y (en) * | 2008-07-01 | 2009-05-20 | 上海中发依帕超高压电器有限公司 | Outdoor high-voltage SF6 can-type circuit breaker with automatic heat accompany device |
| CN202013833U (en) * | 2011-01-26 | 2011-10-19 | 新疆电力公司奎屯电业局 | Self-temperature-limit heating insulation sleeve of SF6 circuit breaker |
| CN202693699U (en) * | 2012-06-14 | 2013-01-23 | 深圳市中科集创电力科技有限公司 | On-line detection device of overhead line and current transformer (CT) electricity-taking power unit |
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| RU2563575C1 (en) * | 2014-04-25 | 2015-09-20 | Открытое Акционерное Общество Холдинговая Компания "Электрозавод" (Оао "Электрозавод") | Sf6-insulated device operated at low temperatures |
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- 2017-05-05 CN CN201710310032.5A patent/CN106971899B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1229036A (en) * | 1968-07-23 | 1971-04-21 | ||
| CN201242969Y (en) * | 2008-07-01 | 2009-05-20 | 上海中发依帕超高压电器有限公司 | Outdoor high-voltage SF6 can-type circuit breaker with automatic heat accompany device |
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| RU2563575C1 (en) * | 2014-04-25 | 2015-09-20 | Открытое Акционерное Общество Холдинговая Компания "Электрозавод" (Оао "Электрозавод") | Sf6-insulated device operated at low temperatures |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287274A (en) * | 2017-12-18 | 2018-07-17 | 国网内蒙古东部电力有限公司检修分公司 | The fault detect positioning device and method of GIS heating devices under a kind of low temperature |
| CN112614731A (en) * | 2020-12-29 | 2021-04-06 | 福建省交建集团厦门雷耀电气科技有限公司 | SF6 load switch with heating function |
| CN112614731B (en) * | 2020-12-29 | 2023-09-26 | 福建省交建集团厦门雷耀电气科技有限公司 | SF6 load switch with heating function |
| CN113163526A (en) * | 2021-04-28 | 2021-07-23 | 国网冀北电力有限公司检修分公司 | Heating control system and method |
| CN113345757A (en) * | 2021-05-13 | 2021-09-03 | 国网内蒙古东部电力有限公司呼伦贝尔供电公司 | SF (sulfur hexafluoride)6Far-end infrared heating device of circuit breaker |
| CN114724884A (en) * | 2022-05-10 | 2022-07-08 | 国网新疆电力有限公司塔城供电公司 | Low-temperature liquefaction prevention device for porcelain column type circuit breaker |
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| CN106971899B (en) | 2019-08-13 |
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Granted publication date: 20190813 |