CN106960760B - A kind of distal end assisted heating device of SF6 breaker - Google Patents
A kind of distal end assisted heating device of SF6 breaker Download PDFInfo
- Publication number
- CN106960760B CN106960760B CN201710309939.XA CN201710309939A CN106960760B CN 106960760 B CN106960760 B CN 106960760B CN 201710309939 A CN201710309939 A CN 201710309939A CN 106960760 B CN106960760 B CN 106960760B
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- Prior art keywords
- temperature
- control circuit
- circuit
- breaker
- distal end
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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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
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- Circuit Breakers (AREA)
- General Induction Heating (AREA)
Abstract
The invention patent provides a kind of distal end assisted heating device of SF6 breaker, which is able to solve after breaker is additionally arranged at the bottom heater the problem of can not effectively promoting gas temperature in the gas chamber of circuit breaker polar distal end.It is mounted in breaker top, its resistance band and the induction generating set that is installed on high voltage bus by thermal-insulation coat and embedded in its inner wall forms, and the top inner wall of pole is provided with groove, and adding thermal resistance band is fixed in groove, the present invention has the advantages of simple installation, good product performance.
Description
Technical field
The present invention is a kind of distal end assisted heating device of SF6 breaker.
Background technique
Eastern Inner Mongolia very cold, reachable -40 DEG C of winter some areas minimum temperature, some areas even can
Up to -50 DEG C.In extreme low temperature, the liquefaction of SF6 gas generant portion can be such that the SF6 gas density is in SF6 breaker reduces,
And it realizes under the excellent electrical characteristic of SF6 gas tangible certain air pressure and density conditions, therefore temperature is too low will lead to SF6
There is liquefaction phenomenon in gas, so that the break performance of SF6 breaker and insulating capacity decline.
To guarantee SF6 breaker in the safe and reliable operation of extremely frigid zones, many scholars both domestic and external and producer are all done
Relevant test, method relatively conventional at present mainly have: reducing the operation air pressure of SF6 gas；SF6 is replaced using other gases
Gas (mixed gas of such as c-C4F8, SF6 and N2)；SF6 gas is heated.Although first two method can be solved effectively
The Liquefaction of SF6 gas, but its specified drop-out current parameter is inevitably reduced, it not can guarantee SF6 breaker
Normal work under big drop-out current, while also bigger difficulty is brought to maintenance and maintenance work.Therefore, disconnected to guarantee
Road device can only heated SF6 gas with current research level in the normal operation of extremely frigid zones.At the same time, mesh
Preceding existing heating method is typically direct-fired to the tank body of breaker and the progress of porcelain knob bottom, though this heating method
It is so simple and feasible, but since porcelain knob is longer and its constituent material is not easy thermally conductive, thus SF6 arc extinguishing gas chamber can not be conducted heat to
In, the indoor gas temperature of SF6 arc extinguishing gas cannot be effectively promoted in this method of extremely frigid zones.Therefore, being additionally arranged at the bottom plus
Under the premise of thermal, the self-energy heating device can be installed additional in the distal end of breaker, to solve SF6 breaker distal end temperature
Degree is unable to get the problem of effectively improving.
Summary of the invention
The invention patent technical problems to be solved are the defect in the presence of needle techniques discussed above, provide
A kind of distal end assisted heating device of SF6 breaker guarantees that liquefaction phenomenon does not occur in winter breaker SF6 with this.
The present invention solves above-mentioned technical problem and uses following technical scheme:
A kind of distal end assisted heating device of SF6 breaker, it includes induction generating set, power protection and control electricity
Road, super capacitor, temperature-control circuit, adding thermal resistance band, muff, insulation board.
Induction generating set, power protection and the control circuit, super capacitor, temperature control short circuit are each provided at heat preservation
Set top, and completely cut off between each device, circuit by insulation board；The distal end of the muff and breaker is mutually right
It answers, and muff fitting outside at the far end, the adding thermal resistance band is embedded in breaker distal end inner wall and distal tip, adds
Thermal resistance band is equipped between equally distributed several and adding thermal resistance band and is serially connected.
The induction generating set is made of magnetic induction coil and high magnetic flux iron core, which utilizes electromagnetic induction principle
Electricity directly is taken from high voltage bus, installs electric current sense on it additional when the curent change in high voltage bus causes surrounding magnetic field to change
Answer coil that will induce voltage, by electrical energy transportation to follow-up equipment after over commutation, filtering, voltage regulator circuit.
The magnetic induction coil should be 1-4mm close to high voltage bus, the distance between magnetic induction coil and high voltage bus.
The power protection and control circuit protects circuit according to faradic size, and controls and take electric wire
The working condition that the voltage and current generated, power protection and control circuit control heater circuit according to the size of induced voltage is enclosed,
Directly it is the power supply of adding thermal resistance band when voltage stabilization, and extra energy is stored in super capacitor；When voltage instability timing will
Super capacitor puts into heater circuit.
The temperature-control circuit is mainly by wireless temperature TT&C system unit, temperature sensor, microprocessor, temperature
Vision-control device composition, simultaneously output temperature data are handled temperature sensor acquisition breaker temperature to microprocessor, so
It is issued by wireless transmitter module, collects temperature data to temperature display using wireless receiving module and adjust unit progress data
Display and analysis are compared, and subsequent conditioning circuit driving are then carried out, using the temperature control module, when temperature drops to a certain set temperature
When, temperature control equipment work connects heating circuit in heating device, and heating device heats its far-end；Work as temperature
When degree rises to a certain set temperature, temperature control equipment movement disconnects heating circuit.
The present invention has the advantages that by adopting the above technical scheme
By the cooperating of above each module, can effectively make up because SF6 breaker be additionally arranged at the bottom heating device without
Method effectively promotes the defect of insulated terminal near top temperature, ensure that gas temperature in the arc-chutes of normal operation of circuit breaker.
Detailed description of the invention
Fig. 1: the invention patent example structure schematic diagram
Fig. 2: the invention patent functional block diagram
Fig. 3: taking energy coil schematic illustration
Fig. 4: heating structure schematic diagram
Fig. 5: temperature-control circuit
Fig. 6: scheme of installation of the invention.
In figure: induction generating set 1, power protection and control circuit 2, super capacitor 3, temperature-control circuit 4, heating electricity
Stopband 5, muff 6, insulation board 7, magnetic induction coil 8, high magnetic flux iron core 9, high voltage bus 10.
Specific embodiment
Here the distal end assisted heating device embodiment in detail to SF6 breaker is illustrated, example is indicated attached
In figure.When following description is related to attached drawing, unless otherwise indicated, the same numbers in different attached drawings indicate the same or similar and want
Element.Embodiment described in following exemplary embodiment does not represent all embodiment party consistent with the invention patent
Formula.On the contrary, they are only the devices consistent with some aspects as detailed in the attached claim, the invention patent
Example.
Such as attached drawing 1, the distal end assisted heating device of Fig. 2 and a kind of SF6 breaker shown in Fig. 4, it includes induction power generation
Device 1, power protection and control circuit 2, super capacitor 3, temperature-control circuit 4, adding thermal resistance band 5, muff 6, insulation board
7。
Induction generating set 1, power protection and the control circuit 2, super capacitor 3, temperature-control circuit 4 are each provided at
6 top of muff, and completely cut off between each device, circuit by insulation board 7；The distal end of the muff 6 and breaker
It corresponds to each other, and 6 fitting of muff outside at the far end, the adding thermal resistance band 5 is embedded in breaker distal end inner wall and remote
End top, adding thermal resistance band 5 are equipped between equally distributed several and adding thermal resistance band 5 and are serially connected.
Induction generating set 1 as shown in Figure 3 is made of magnetic induction coil 8 and high magnetic flux iron core 9, which utilizes electromagnetism
Principle of induction directly takes electricity from high voltage bus 10, is installed at when the curent change in high voltage bus 10 causes surrounding magnetic field to change
Magnetic induction coil 8 thereon will induce voltage, by electrical energy transportation to follow-up equipment after over commutation, filtering, voltage regulator circuit.
The magnetic induction coil 8 should be close to high voltage bus 10, and the distance between magnetic induction coil 8 and high voltage bus 10 are
1-4mm。
The power protection and control circuit 2 protects circuit according to faradic size, and controls and take electricity
The voltage and current that coil generates, power protection and control circuit 2 control the work shape of heater circuit according to the size of induced voltage
State is directly the power supply of adding thermal resistance band when voltage stabilization, and extra energy is stored in super capacitor 3；Work as spread of voltage
When by super capacitor 3 put into heater circuit.
Temperature-control circuit 4 as shown in Figure 5 is mainly by wireless temperature TT&C system unit, temperature sensor, micro process
Device, temperature display regulating device composition, temperature sensor acquires breaker temperature and output temperature data are carried out to microprocessor
Processing, then issued through wireless transmitter module, using wireless receiving module collect temperature data to temperature display adjust unit into
The display and analysis of row data are compared, and subsequent conditioning circuit driving are then carried out, using the temperature control module, when temperature drops to a certain set
When determining temperature, temperature control equipment work connects heating circuit in heating device, and heating device adds its far-end
Heat；When temperature rises to a certain set temperature, temperature control equipment movement disconnects heating circuit.
It is as shown in FIG. 6, which is added on high voltage bus 10, high voltage bus 10 generate alternating magnetic field and in magnetic induction
Induced electromotive force is generated in coil 8, and then provides electric energy for subsequent conditioning circuit, and the electric energy that sensed coil 8 generates is through over commutation, filter
Wave and stable-pressure device are conveyed to battery and are stored, and have power protection and control circuit 2 to be carried out according to induced voltage
The selection of operating mode, when non-inductive voltage is less than 5V, battery puts into heater circuit work at once, when induced voltage is in
It is directly heater circuit power supply when normal range (NR).
Temperature control device circuit theory such as Fig. 5 in temperature control module to the temperature data received with preset minimum value and
Maximum value is compared in real time, when the temperature of transmission be lower than preset temperature when, temperature control equipment KT1 and KT2 movement, SH41 and
The circuit SH42 is connected, and heating tape at the top of arc extinguishing chamber interior walls and support insulator is made to work, and two heating tapes are simultaneously to arc extinguishing at this time
Room heating, heating tape leads to the mode of heat transfer for inside heat diffusion to arc-chutes, thus change the temperature of arc-extinguishing medium, when
When temperature acquisition transmission unit is transmitted back to the temperature come higher than preset temperature, KT0 movement is disconnected, the circuit SH41 and SH42, is disconnected
At the top of arc-chutes and support insulator inner cavity top heats charged, stops heating.
By the cooperating of above each module, can effectively make up because SF6 breaker be additionally arranged at the bottom heating device without
Method effectively promotes the defect of insulated terminal near top temperature, ensure that gas temperature in the arc-chutes of normal operation of circuit breaker.
Claims (1)
1. a kind of distal end assisted heating device of SF6 breaker, it include induction generating set, power protection and control circuit,
Super capacitor, temperature-control circuit, adding thermal resistance band, muff, insulation board, it is characterised in that: the induction generating set,
Power protection and control circuit, super capacitor, temperature-control circuit are each provided at the top of muff, and induction generating set, power supply
Protection and control circuit, super capacitor are completely cut off by insulation board between temperature-control circuit；The muff and open circuit
The distal end of device corresponds to each other, and muff fitting outside at the far end, the adding thermal resistance band are embedded in breaker distal end
Wall and distal tip, adding thermal resistance band are equipped between equally distributed several and adding thermal resistance band and are serially connected；By that will feel
Power generator is answered to be added on high voltage bus, high voltage bus generates alternating magnetic field and generates induced electromotive force in magnetic induction coil,
And then electric energy is provided for subsequent conditioning circuit；The induction generating set is made of magnetic induction coil and high magnetic flux iron core, utilizes electricity
Magnetic induction principle directly takes electricity from high voltage bus, is installed at it when the curent change in high voltage bus causes surrounding magnetic field to change
On magnetic induction coil will induce voltage, by electrical energy transportation to follow-up equipment after over commutation, filtering, voltage regulator circuit；Institute
The magnetic induction coil stated should be 1-4mm close to high voltage bus, the distance between magnetic induction coil and high voltage bus；The power supply
Protection and control circuit protect circuit according to the size of induced voltage, and control the voltage and current of electricity taking coil generation,
Power protection and control circuit control the working condition of heater circuit according to the size of induced voltage, are directly when voltage stabilization
The power supply of adding thermal resistance band, and extra energy is stored in super capacitor；When super capacitor is put into heating electricity by voltage instability timing
Road；The temperature-control circuit is mainly by wireless temperature TT&C system unit, temperature sensor, microprocessor, temperature display
Unit composition is adjusted, simultaneously output temperature data are handled temperature sensor acquisition breaker temperature to microprocessor, are then passed through
Wireless transmitter module issues, and collects temperature data to temperature display using wireless receiving module and adjusts the display that unit carries out data
Compare with analysis, then carries out subsequent conditioning circuit driving, utilize temperature conditioning unit, when temperature drops to a certain set temperature, temperature
Control circuit work connects heating circuit in heating device, and heating device heats its far-end；When temperature rises to
When a certain set temperature, temperature-control circuit movement disconnects heating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309939.XA CN106960760B (en) | 2017-05-05 | 2017-05-05 | A kind of distal end assisted heating device of SF6 breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309939.XA CN106960760B (en) | 2017-05-05 | 2017-05-05 | A kind of distal end assisted heating device of SF6 breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106960760A CN106960760A (en) | 2017-07-18 |
| CN106960760B true CN106960760B (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710309939.XA Expired - Fee Related CN106960760B (en) | 2017-05-05 | 2017-05-05 | A kind of distal end assisted heating device of SF6 breaker |
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| CN (1) | CN106960760B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107864525B (en) * | 2017-11-24 | 2021-01-12 | 国网内蒙古东部电力有限公司 | Heating device and method for GIS equipment |
| CN108987172B (en) * | 2018-09-19 | 2020-05-29 | 国网黑龙江省电力有限公司电力科学研究院 | External long-term heating device for column type circuit breaker in low-temperature area |
| CN111867155A (en) * | 2020-05-29 | 2020-10-30 | 国网黑龙江省电力有限公司齐齐哈尔供电公司 | Replaceable emergency heating device for tank-type circuit breaker |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN202796774U (en) * | 2012-07-18 | 2013-03-13 | 无锡恒驰中兴开关有限公司 | Outdoor high-voltage sulfur hexafluoride pot type breaker with heating device |
| RU2563575C1 (en) * | 2014-04-25 | 2015-09-20 | Открытое Акционерное Общество Холдинговая Компания "Электрозавод" (Оао "Электрозавод") | Sf6-insulated device operated at low temperatures |
-
2017
- 2017-05-05 CN CN201710309939.XA patent/CN106960760B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN202796774U (en) * | 2012-07-18 | 2013-03-13 | 无锡恒驰中兴开关有限公司 | Outdoor high-voltage sulfur hexafluoride pot type breaker with heating device |
| 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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| Publication number | Publication date |
|---|---|
| CN106960760A (en) | 2017-07-18 |
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