CN107017118A - The high voltage vacuum interrupter that operating mode based on radio source can be monitored on-line - Google Patents

The high voltage vacuum interrupter that operating mode based on radio source can be monitored on-line Download PDF

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Publication number
CN107017118A
CN107017118A CN201710363802.2A CN201710363802A CN107017118A CN 107017118 A CN107017118 A CN 107017118A CN 201710363802 A CN201710363802 A CN 201710363802A CN 107017118 A CN107017118 A CN 107017118A
Authority
CN
China
Prior art keywords
cap
metalwork
radio source
vacuum interrupter
monitored
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201710363802.2A
Other languages
Chinese (zh)
Inventor
顾文权
顾曹新
宋玉锋
顾明锋
王春华
夏武
孟领刚
夏文
丁菊
王新明
董金奇
杨建�
李晓菊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Jiangsu Electric Power Company Qidong Power Supply Co
JIANGSU MODERN POWER CAPACITOR CO Ltd
Original Assignee
State Grid Jiangsu Electric Power Company Qidong Power Supply Co
JIANGSU MODERN POWER CAPACITOR CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Jiangsu Electric Power Company Qidong Power Supply Co, JIANGSU MODERN POWER CAPACITOR CO Ltd filed Critical State Grid Jiangsu Electric Power Company Qidong Power Supply Co
Priority to CN201710363802.2A priority Critical patent/CN107017118A/en
Publication of CN107017118A publication Critical patent/CN107017118A/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/664Contacts; Arc-extinguishing means, e.g. arcing rings
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/668Means for obtaining or monitoring the vacuum

Abstract

The invention discloses the high voltage vacuum interrupter that a kind of operating mode based on radio source can be monitored on-line, include static contact, first end cap, insulation tube, moving contact, second end cap, metalwork, insulating part and intelligent assembly, first end cap, second end cap and insulation tube constitute the first closed cavity, static contact is fixed on the first end cap center through the first end cap, moving contact is slidably arranged in the circular hole of the second end cap, insulating part, which is arranged between metalwork and the second end cap, is dielectrically separated from metalwork with the second end cap, intelligent assembly is connected with metalwork and the second end cap to be converted into data signal by the electric capacity of metalwork and the second end cap composition and is handled and calculate vacuum variable quantity.The present invention can monitor vacuum interrupter level of vacuum on-line, to understand the quality deterioration degree of high voltage vacuum interrupter in real time.

Description

The high voltage vacuum interrupter that operating mode based on radio source can be monitored on-line
Technical field
The present invention relates to a kind of high voltage vacuum interrupter, what particularly a kind of operating mode based on radio source can be monitored on-line High voltage vacuum interrupter.
Background technology
High voltage vacuum interrupter is main, the critical piece in high-voltage switch gear, high-voltage fence be switched on or switched off i.e. by It is realized.High voltage vacuum interrupter has small volume, pollution-free, easy to use, valency compared with the high pressure arc-chutes of other forms The low feature of lattice, therefore using the most universal in high-voltage switch gear.The quality of high voltage vacuum interrupter is particularly important, quality problems Power network locally even large-area power-cuts or collapse can be caused, very big harm is brought to national economy, people's lives and social stability. High voltage vacuum interrupter is typically mounted in high-tension switch gear, and high-tension switch gear is in turn mounted at high voltage, large-current electric Net in loop, therefore high voltage vacuum interrupter untouchability in operation, its in poor quality process is unknowable, to occur it is disabling therefore It could be found when hindering or leading to a disaster.
Vacuum is the important indicator of vacuum interrupter, largely reflects the quality of the quality of vacuum interrupter.From Wire type vacuum degree measuring instrument is comparatively common, but vacuum switch is typically all to run throughout the year.Lack in the market a kind of The high voltage vacuum interrupter of its vacuum can be monitored on-line, to understand the quality deterioration degree of high voltage vacuum interrupter in real time, so Take measures processing in time afterwards, it is to avoid the generation of accident.
The content of the invention
The technical problems to be solved by the invention are to provide the high pressure that a kind of operating mode based on radio source can be monitored on-line Vacuum interrupter, it can monitor the real-time vacuum of vacuum interrupter on-line.
In order to solve the above technical problems, the technical solution adopted in the present invention is:
The high voltage vacuum interrupter that a kind of operating mode based on radio source can be monitored on-line, it is characterised in that:Include static contact, One end cap, insulation tube, moving contact, the second end cap, metalwork, insulating part and intelligent assembly, insulation tube are the pipe of isolation material, First end cap is fixed on insulation tube upper end, and the second end cap is fixed on insulation tube lower end, the first end cap, the second end cap and insulation tube structure Into the first closed cavity, static contact is fixed on the first end cap center through the first end cap, and the second end cap central is provided with to be touched with dynamic The circular hole of head matching, moving contact is slidably arranged in the circular hole of the second end cap, and metalwork is vertical by upside flat part and both sides Portion is constituted, upside flat part by the vertical portion supporting and fixing of both sides on the upside of the second end cap and metalwork and the second end cap it Between be tightly connected the second closed cavity of composition, insulating part is arranged on metalwork and the second end cap between metalwork and the second end cap It is dielectrically separated from, intelligent assembly is connected with metalwork and the second end cap is converted into numeral by the electric capacity of metalwork and the second end cap composition Signal is handled and calculates vacuum variable quantity.
Further, the moving contact lower end is provided with a bellows, and bellows-sheathed is located at moving contact lower end, the second end The through-hole diameter of lid is slightly larger than the external diameter of moving contact, bellows lower end and through hole fixed seal connection, and the sealing of bellows upper end is solid It is scheduled on moving contact side.
Further, the insulation tube and insulating part are using ceramics or glass.
Further, the upside flat part of the metalwork is annular, the vertical portions of both sides set straight down with it is upper Side flat part collectively forms a second circular seal cavity.
Further, the thickness of the upside flat part is 0.5-1.5mm.
Further, the advance vacuum pumping of the second seal cavity, its vacuum is original true with first annular seal space body Reciprocal of duty cycle is equal or close.
Further, the intelligent assembly includes measurement module, processing module, communication module, power module, communication antenna With radio source reception antenna, measurement module input is connected with metalwork and the second end cap respectively, measurement module output end with Processing module is connected to the capacitance change of metalwork and the second end cap composition being converted into the recognizable numeral letter of processor Number, this data signal is carried out calculating processing and obtains the vacuum variable quantity of first annular seal space body by processing module, communication module with Processing module is connected to communicate with external server, and communication antenna is connected with communication module, and power module is each with intelligent assembly Module is connected to intelligent assembly and powered, and radio source reception antenna is connected to receive the wireless of radio source with power module Energy.
Further, the processing module uses single-chip microcomputer or PLC.
The present invention compared with prior art, with advantages below and effect:The present invention is by vacuum in vacuum extinction room The spacing for the electric capacity that change is made up of metalwork and the second end cap changes, so as to by the change of capacitance, pass through measurement Module transitions simultaneously obtain vacuum variable quantity by processing module calculating, can so monitor vacuum interrupter vacuum journey on-line Degree, to understand the quality deterioration degree of high voltage vacuum interrupter in real time, then take measures processing in time, it is to avoid the hair of accident It is raw, change the failure unpredictability of existing product, it is ensured that the lasting of power network, safety, economical operation.
Brief description of the drawings
Fig. 1 is the schematic diagram for the high voltage vacuum interrupter that the operating mode based on radio source of the invention can be monitored on-line.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, following examples are to this hair Bright explanation and the invention is not limited in following examples.
As shown in figure 1, the high voltage vacuum interrupter that a kind of operating mode based on radio source of the present invention can be monitored on-line, bag Containing static contact 1, the first end cap 2, insulation tube 3, moving contact 4, the second end cap 8, metalwork 6, insulating part 7 and intelligent assembly 17, absolutely Edge pipe 3 is the pipe of isolation material, and the first end cap 2 is fixed on the upper end of insulation tube 3, and the second end cap 8 is fixed on the lower end of insulation tube 3, First end cap 2, the second end cap 8 and insulation tube 3 constitute the first closed cavity 10, and static contact 1 is fixed on first through the first end cap 2 The center of end cap 2, the center of the second end cap 8 is provided with the circular hole matched with moving contact 4, and moving contact 4 is slidably arranged in the second end cap 8 In circular hole, metalwork 6 is made up of the vertical portion of upside flat part and both sides, and upside flat part is supported solid by the vertical portion of both sides It is scheduled between the upside of the second end cap 8 and the end cap 8 of metalwork 6 and second and is tightly connected the second closed cavity 9 of composition, insulating part 7 It is arranged between the end cap 8 of metalwork 6 and second and is dielectrically separated from metalwork 6 with the second end cap 8, intelligent assembly 17 and metalwork 6 The electric capacity for constituting the end cap 8 of metalwork 6 and second is connected with the second end cap 8 it is converted into data signal and is handled and calculated true Reciprocal of duty cycle variable quantity.
The lower end of moving contact 4 is provided with a bellows 5, and bellows 5 is set in the lower end of moving contact 4, the through hole of the second end cap 8 Diameter is slightly larger than the external diameter of moving contact 4, the lower end of bellows 5 and through hole fixed seal connection, and the sealing of the upper end of bellows 5 is fixed on dynamic The side of contact 4.By the design of bellows, so as to can either ensure that moving contact 4 can smoothly be slided in through hole, while energy Enough form good sealing, it is ensured that the tightness of the vacuum environment of arc-chutes.Insulation tube 3 and insulating part 7 using ceramics or Glass.
The upside flat part of metalwork 6 is annular, and the vertical portion of both sides sets common with upside flat part straight down Constitute a second circular seal cavity 9.The thickness of upside flat part is 0.5-1.5mm.The body of second annular seal space 9 is taken out in advance For vacuum, its vacuum is equal or close with the original vacuum degree of first annular seal space body 10(Pressure difference is less than 10- 3Pa).So exist Under normal circumstances, the vacuum of the seal cavity 9 of first annular seal space body 10 and second is equal or close, above and below the flat part of upside by Pressure remain basically stable, upside flat part not deformation, when the vacuum of first annular seal space body 10 changes, air pressure increase when Wait, draught head is formed between such seal cavity 9 of first annular seal space body 10 and second, so as to be pressed down against upside flat part, gold Spacing reduces between belonging to the electric capacity two-plate that part and the second end cap are constituted, and capacitance changes, and passes through measuring circuit and place The change of circuit counting capacitance is managed, and continues to try to achieve the vacuum variable quantity in first annular seal space body 10.
Intelligent assembly 17 includes measurement module 11, processing module 12, communication module 13, power module 14, communication antenna 15 With radio source reception antenna 16, the input of measurement module 11 is connected with the end cap 8 of metalwork 6 and second respectively, measurement module 11 Output end and processing module 12 are connected to the capacitance change that the end cap 8 of metalwork 6 and second is constituted being converted into processor can This data signal is carried out the vacuum change that calculating processing obtains first annular seal space body 10 by the data signal of identification, processing module 12 Change amount, communication module 13 is connected to communicate with external server with processing module 12, and communication antenna 15 connects with communication module 13 Connect, power module 14 is connected to intelligent assembly 17 with each module of intelligent assembly 17 and powered, radio source reception antenna 16 and electricity Source module 14 is connected to receive the wireless energy of radio source.Entered by radio source reception antenna 16 and power module 14 Row power supply, because vacuum interrupter is high tension apparatus, and intelligent assembly 17 is low-voltage device, and being powered by radio source to have Effect isolation high-low pressure, it is to avoid interfere with each other.Processing module 12 uses single-chip microcomputer or PLC.Measurement module 11 is included(Under preferably supplementing The circuit structure of measurement module, if ready-made modular circuit, there is provided model, company-information).
To use vacuum welding between insulation tube 3, metalwork 6, insulating part 7, the second end cap 8, when carrying out vacuum welding, Closed cavity 9 is placed in the both sides of metalwork 6 in vacuum or negative pressure state, whole welding process with closed cavity 10 and keeps gas simultaneously Pressure is identical, and metalwork 6 will not be deformed or damaged because of air pressure, and closed cavity 9 forms two with closed cavity 10 after the completion of welding Individual completely isolated closed cavity, when the vacuum of closed cavity 10 changes, the second end cap 8 and metalwork 6 simultaneously form one Electric capacity can also change.
Working power principle:The radio source received is passed through 14 turns of radio source module by radio source reception antenna 16 It is changed to measurement module 11, processing module 12 and radio communication in the applicable power supply of the work of intelligent assembly 17, intelligent assembly 17 The power supply of module is all derived from radio source module 14.
Extinguishing room vacuum degree Cleaning Principle:There is insulating part 7 to be separated by between second end cap 8 and metalwork 6, electrically It is not contact, which forms two metal polar plates a electric capacity, because the air pressure inside power of cavity 9 is constant, works as vacuum interrupter Cavity 10 it is constant when, the capacitance formed is constant, when the cavity 10 of vacuum interrupter changes, causes between two cavitys There is pressure difference, the capacitance that metalwork 6 is formed with the second end cap 8 changes, electric capacity and the measurement group in intelligent assembly 17 Part 11 is connected, and measures the change of capacitance, and the vacuum change of cavity 10 is judged accordingly, is realized to the vacuum of arc-chutes Monitoring.
Wireless communication principles:Vacuum in the high voltage vacuum interrupter detected is passed through Miniaturized Communications by intelligent assembly 17 Module 13, Miniaturized Communications antenna 15 are wirelessly transmitted to other devices or equipment is realized and the vacuum of vacuum interrupter is supervised Survey.
Above content described in this specification is only illustration made for the present invention.Technology belonging to of the invention The technical staff in field can be made various modifications or supplement to described specific embodiment or be substituted using similar mode, only Will without departing from description of the invention content or surmount scope defined in the claims, all should belong to the present invention guarantor Protect scope.

Claims (8)

1. the high voltage vacuum interrupter that a kind of operating mode based on radio source can be monitored on-line, it is characterised in that:Comprising static contact, First end cap, insulation tube, moving contact, the second end cap, metalwork, insulating part and intelligent assembly, insulation tube are the circle of isolation material Pipe, the first end cap is fixed on insulation tube upper end, and the second end cap is fixed on insulation tube lower end, the first end cap, the second end cap and insulation Pipe constitutes the first closed cavity, and static contact is fixed on the first end cap center through the first end cap, the second end cap central be provided with and The circular hole of moving contact matching, moving contact is slidably arranged in the circular hole of the second end cap, and metalwork is by upside flat part and both sides Vertical portion is constituted, and upside flat part is by the vertical portion supporting and fixing of both sides on the upside of the second end cap and metalwork and the second end The second closed cavity of composition is tightly connected between lid, insulating part is arranged on metalwork and second between metalwork and the second end cap End cap is dielectrically separated from, and intelligent assembly is connected the electric capacity for constituting metalwork with the second end cap with metalwork and the second end cap and is converted into Data signal is handled and calculates vacuum variable quantity.
2. the high voltage vacuum interrupter that can be monitored on-line according to the operating mode based on radio source described in claim 1, its feature It is:The moving contact lower end is provided with a bellows, and bellows-sheathed is located at moving contact lower end, the through-hole diameter of the second end cap Slightly larger than the external diameter of moving contact, bellows lower end and through hole fixed seal connection, bellows upper end sealing are fixed on moving contact side Face.
3. the high voltage vacuum interrupter that can be monitored on-line according to the operating mode based on radio source described in claim 1, its feature It is:The insulation tube and insulating part are using ceramics or glass.
4. the high voltage vacuum interrupter that can be monitored on-line according to the operating mode based on radio source described in claim 1, its feature It is:The upside flat part of the metalwork is annular, and the vertical portion of both sides sets common with upside flat part straight down Constitute a second circular seal cavity.
5. the high voltage vacuum interrupter that can be monitored on-line according to the operating mode based on radio source described in claim 1, its feature It is:The thickness of the upside flat part is 0.5-1.5mm.
6. the high voltage vacuum interrupter that can be monitored on-line according to the operating mode based on radio source described in claim 1 or 4 or 5, It is characterized in that:The advance vacuum pumping of second seal cavity, its vacuum and the original vacuum degree phase of first annular seal space body Deng or it is close.
7. the high voltage vacuum interrupter that can be monitored on-line according to the operating mode based on radio source described in claim 1, its feature It is:The intelligent assembly connects comprising measurement module, processing module, communication module, power module, communication antenna and radio source Antenna is received, measurement module input is connected with metalwork and the second end cap respectively, and measurement module output end is connected with processing module For the capacitance change of metalwork and the second end cap composition to be converted into the recognizable data signal of processor, processing module will This data signal carries out the vacuum variable quantity that calculating processing obtains first annular seal space body, and communication module is connected use with processing module Communicated in external server, communication antenna is connected with communication module, power module is connected to intelligence with each module of intelligent assembly Energy assembly power supply, radio source reception antenna is connected to receive the wireless energy of radio source with power module.
8. the high voltage vacuum interrupter that can be monitored on-line according to the operating mode based on radio source described in claim 1, its feature It is:The processing module uses single-chip microcomputer or PLC.
CN201710363802.2A 2017-05-22 2017-05-22 The high voltage vacuum interrupter that operating mode based on radio source can be monitored on-line Withdrawn CN107017118A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018214346A1 (en) * 2017-05-22 2018-11-29 江苏现代电力科技股份有限公司 Wireless power source-based vacuum degree-monitoring high voltage vacuum arc-extinguishing chamber and high-voltage switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012243427A (en) * 2011-05-16 2012-12-10 Toshiba Corp Vacuum degree monitoring device of vacuum valve
CN103606483A (en) * 2013-11-23 2014-02-26 浙江紫光电器有限公司 Vacuum degree monitoring device for high voltage vacuum circuit breaker arc extinguish chamber
CN204441183U (en) * 2015-03-11 2015-07-01 浙江安光电气科技有限公司 A kind of vacuum interrupter of pointing out gas leakage
CN206976240U (en) * 2017-05-22 2018-02-06 江苏现代电力科技股份有限公司 The high voltage vacuum interrupter that operating mode based on radio source can be monitored on-line

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012243427A (en) * 2011-05-16 2012-12-10 Toshiba Corp Vacuum degree monitoring device of vacuum valve
CN103606483A (en) * 2013-11-23 2014-02-26 浙江紫光电器有限公司 Vacuum degree monitoring device for high voltage vacuum circuit breaker arc extinguish chamber
CN204441183U (en) * 2015-03-11 2015-07-01 浙江安光电气科技有限公司 A kind of vacuum interrupter of pointing out gas leakage
CN206976240U (en) * 2017-05-22 2018-02-06 江苏现代电力科技股份有限公司 The high voltage vacuum interrupter that operating mode based on radio source can be monitored on-line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018214346A1 (en) * 2017-05-22 2018-11-29 江苏现代电力科技股份有限公司 Wireless power source-based vacuum degree-monitoring high voltage vacuum arc-extinguishing chamber and high-voltage switch

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Application publication date: 20170804