CN106356246A - Online monitoring device for vacuum degree of arc extinguishing chamber of vacuum circuit breaker - Google Patents
Online monitoring device for vacuum degree of arc extinguishing chamber of vacuum circuit breaker Download PDFInfo
- Publication number
- CN106356246A CN106356246A CN201610973793.4A CN201610973793A CN106356246A CN 106356246 A CN106356246 A CN 106356246A CN 201610973793 A CN201610973793 A CN 201610973793A CN 106356246 A CN106356246 A CN 106356246A
- Authority
- CN
- China
- Prior art keywords
- arc extinguishing
- vacuum
- connecting portion
- extinguishing chamber
- hole
- 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.)
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Classifications
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- 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
- H01H33/66—Vacuum switches
- H01H33/668—Means for obtaining or monitoring the vacuum
Abstract
The invention discloses an online monitoring device for the vacuum degree of an arc extinguishing chamber of a vacuum circuit breaker. The online monitoring device comprises a fixing seat and a pressure detection component, wherein the fixing seat is fixedly connected with an arc extinguishing chamber shell; a threaded through hole is formed in the fixing seat; the part of the arc extinguishing chamber shell opposite to the threaded through hole of the fixing seat is a thin-wall part with thickness of 0.1-1.0mm; the pressure detection component comprises a component shell, a pressure sensor and a signal processing and communication module; the component shell consists of a needle part, a connection part and an operation part; an axially penetrating needle hole is formed in the needle part; the connection part is a barrel body; a through hole communicated with the needle hole of the needle part is formed at the bottom of the connection part; an external thread is arranged on the outer wall of the connection part; the pressure sensor is fixed at the bottom of the connection part; the outer wall of the operation part is of a polygonal structure; and the signal processing and communication module is fixed inside the operation part and electrically connected with the pressure sensor. The device disclosed by the invention is simple in structure and convenient to use and can realize online monitoring of the vacuum degree of the arc extinguishing chamber.
Description
Technical field
The present invention relates to a kind of vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device.
Background technology
Vacuum circuit breaker is widely applied in senior middle school's low-pressure field.Because leakage causes vacuum level of vacuum arc-quenching chamber to drop
Low or inefficacy is the main cause of current vacuum circuit breaker aspect accident, and detects that vacuum level of vacuum arc-quenching chamber or leakage have become
One of important content for most vacuum circuit breaker repairs based on condition of component.Actually, vacuum level of vacuum arc-quenching chamber is also to determine very
One of principal element of empty arc-chutes break performance, in order to realize disjunction and the arc extinguishing of electric current, the indoor pressure of vacuum extinction should
1.33 × 10 should be not higher than-2Pa, the reduction of vacuum will directly affect the break performance of vacuum circuit breaker.Due to vacuum switch warp
After use for many years, with contact material during drop-out current produce gas increase and vacuum interrupter itself is faint
Leakage can cause the reduction of arc extinguishing interior vacuum, but as long as not producing leakage, generally nor affects on the reality of switch
Cut-off.But when vacuum interrupter produces leakage, no matter leakage point size and leakage speed, final result is arc-chutes vacuum
Environment will be completely destroyed, such as not take measures in time to be changed, and seriously ask once producing switch division action and will result in
Topic and accident it is therefore desirable to a kind of simply effectively and cost controlled can real time on-line monitoring vacuum and the method judging leakage
And realize device.
In Vacuity of Vacuum Circuit Breakers monitoring technical field, widely used off-line monitoring technology.Off-line monitoring, needs disconnected
Electricity detects to system, and therefore power consumer can be produced with certain impact；After power-off, vacuum interrupter indoor design condition and operation
State is inconsistent, thus affecting judgment accuracy.How to realize an on-line monitoring always difficult problem, because the life of vacuum interrupter
Produce and need overall welded seal and the evacuation carrying out material under 800 degree about of high temperature, therefore general built-in sensor is no
Method bears such environment, thus cannot carry out, by being previously implanted sensor, the vacuum that gas pressure measurement reflects its inside
Or leakage situation.
Content of the invention
It is an object of the invention to provide a kind of structure vacuum circuit-breaker arc extinguishing chamber vacuum simple, easy to use is online
Monitoring device, can be with the vacuum of on-line checking arc-chutes.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device is it is characterised in that it includes fixed seat and pressure
Detection components；
Described fixed seat is fixedly connected on side wall or upper lid or the base plate of arc extinguishing room housing, and described fixed seat has screw thread
Through hole, the described arc extinguishing room housing position relative with the tapped through hole of described fixed seat is thinner wall section；
Described pressure detecting assembly includes package shell, pressure transducer and signal processing and communication module, described assembly
Shell is made up of pin portion, connecting portion and operating portion；Described pin portion has the pin hole axially penetrating through；Described connecting portion is barrel,
The bottom of described connecting portion has the through hole being connected with the pin hole in described pin portion, and the outer wall of described connecting portion has external screw thread,
Described pressure transducer is fixed on the bottom of described connecting portion；Described operating portion is barrel, and the bottom of described operating portion has
The bottom through-hole being connected with described connecting portion, the outer wall of described operating portion is polygonal structure；Described signal processing and communication
Module is fixed on the inside of described operating portion and is electrically connected with described pressure transducer.
Described pin portion is cylinder.
Described pin portion is conic tube.
One sealing ring is arranged with the connecting portion of described package shell, described sealing ring be located at described fixed seat top with
Between the bottom of the operating portion of described package shell.
The connecting portion outer wall of described package shell has an axial elongated slot.
Described pressure transducer is fixed on the bottom of described connecting portion by epoxy resin or cure silicone rubber.
Described pressure transducer is fixed on the bottom of described connecting portion by sealing ring.
The thickness of described thinner wall section is 0.1～1.0mm.
The beneficial effect of the technical scheme that the present invention provides is:
Vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device of the present invention, including fixed seat and pressure detecting assembly；Institute
State fixed seat to be fixedly connected on side wall or upper lid or the base plate of arc extinguishing room housing, described fixed seat has tapped through hole, described
The arc extinguishing room housing position relative with the tapped through hole of described fixed seat is thickness is thinner wall section；Described pressure detecting assembly includes
Package shell, pressure transducer, signal processing and communication module, described package shell is made up of pin portion, connecting portion and operating portion；
Described pin portion has the pin hole axially penetrating through；Described connecting portion is barrel, and the bottom of described connecting portion has and described pin portion
The through hole that is connected of pin hole, the outer wall of described connecting portion has external screw thread, and described pressure transducer is sealed by encapsulant
It is fixed on the bottom of described connecting portion；Described operating portion is barrel, and the bottom of described operating portion has and described connecting portion phase
The bottom through-hole of connection, the outer wall of described operating portion is polygonal structure；Described signal processing and communication module are fixed on described
The inside of operating portion is simultaneously electrically connected with described pressure transducer.During use, the connecting portion of described pressure detecting assembly is solid with described
Reservation bolt, the thinner wall section that described arc extinguishing room housing is pierced through by the pin portion that runner assembly shell makes package shell, make arc extinguishing
The through hole of the bottom of the through hole in room and pin portion and connecting portion is connected, and the pressure transducer of such pressure detecting assembly can be direct
Contact arc-chutes are so that pressure transducer can be realized on-line monitoring vacuum and gone out with direct measurement vacuum extinction interior gas pressure
Gas pressure in arc chamber simultaneously judges whether vacuum leak according to gas pressure situation, then carries out if there is vacuum leak
Leakage alarm.As can be seen here, vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device structure of the present invention is simple, easy to use,
The on-line monitoring to vacuum extinction interior vacuum can be realized and vacuum leak is judged whether according to gas pressure situation
And send leakage alarm signal.
Brief description
Fig. 1 is vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device decomposition texture schematic diagram of the present invention；
Fig. 2 is vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device use state structural representation of the present invention；
Fig. 3 is the overlooking the structure diagram of Fig. 2.
Reference: 1 fixed seat；2 pressure detecting assemblies；3 arc extinguishing room housings；4 tapped through holes；
5 thinner wall section；6 pressure transducers；7 signal processing and communication module；8 pin portions；9 connecting portions；
10 operating portions；11 pin holes；12 through holes；13 bottom through-holes；14 signal processing and communication module；
15 sealing rings；16 axial elongated slots.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 shows, vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device of the present invention, it includes fixing
Seat 1 and pressure detecting assembly 2；
Described fixed seat 1 is fixedly connected on side wall or upper lid or the base plate of arc extinguishing room housing 3, and described fixed seat 1 has
Tapped through hole 4, described arc extinguishing room housing 3 position relative with the tapped through hole of described fixed seat is thickness is 0.1～1.0mm
Thinner wall section 5；
Described pressure detecting assembly 2 includes package shell, pressure transducer 6 and signal processing and communication module 7 (at signal
Reason and communication module are routine techniquess), described package shell is made up of pin portion 8, connecting portion 9 and operating portion 10；Described pin portion 8 has
There is the pin hole 11 axially penetrating through；Described connecting portion 9 is barrel, and the bottom of described connecting portion 9 has the pin hole with described pin portion
The through hole 12 that 11 are connected, the outer wall of described connecting portion 9 has external screw thread, and described pressure transducer 6 is fixed on described connecting portion 9
Bottom；Described operating portion 10 is barrel, and the bottom of described operating portion 10 is had the bottom being connected with described connecting portion and leads to
Hole 13, the outer wall of described operating portion 10 is polygonal structure；Described signal processing and communication module 14 are fixed on described operating portion
Inside and electrically connect with described pressure transducer 6.
Described pin portion 8 is cylinder.
Described pin portion 8 is conic tube.
One sealing ring 15 is arranged with the connecting portion 9 of described package shell, described sealing ring 15 is located at described fixed seat 1
Between the bottom of operating portion 10 of top and described package shell.
Described pressure transducer 6 is fixed on the bottom of described connecting portion 9 by epoxy resin or cure silicone rubber.
Described pressure transducer 6 is fixed on the bottom of described connecting portion 9 by sealing ring.
Connecting portion 9 outer wall of described package shell has an axial elongated slot 16 and is used for deriving in fixed seat during mounting assembly
Air.
If the base plate of arc extinguishing room housing 3 is thicker, the fixed seat in the present invention can be saved, on base plate, directly process one
Individual screw counterbore, the bottom of screw-threaded counterbore is then thinner wall section, and pressure detecting assembly is then screwed onto in screw-threaded counterbore.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device is it is characterised in that it includes fixed seat and pressure inspection
Survey assembly；
Described fixed seat is fixedly connected on side wall or upper lid or the base plate of arc extinguishing room housing, and described fixed seat has screw thread and leads to
Hole, the described arc extinguishing room housing position relative with the tapped through hole of described fixed seat is thinner wall section；
Described pressure detecting assembly includes package shell, pressure transducer and signal processing and communication module, described package shell
It is made up of pin portion, connecting portion and operating portion；Described pin portion has the pin hole axially penetrating through；Described connecting portion is barrel, described
The bottom of connecting portion has the through hole being connected with the pin hole in described pin portion, and the outer wall of described connecting portion has external screw thread, described
Pressure transducer is fixed on the bottom of described connecting portion；Described operating portion is barrel, and the bottom of described operating portion has and institute
State the bottom through-hole that connecting portion is connected, the outer wall of described operating portion is polygonal structure；Described signal processing and communication module
It is fixed on the inside of described operating portion and electrically connect with described pressure transducer.
2. vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device according to claim 1 is it is characterised in that described pin
Portion is cylinder.
3. vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device according to claim 1 is it is characterised in that described pin
Portion is conic tube.
4. vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device according to claim 1 is it is characterised in that described group
One sealing ring is arranged with the connecting portion of part shell, described sealing ring is located at the top of described fixed seat and described package shell
Between the bottom of operating portion.
5. vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device according to claim 1 is it is characterised in that described pressure
Force transducer is fixed on the bottom of described connecting portion by epoxy resin or cure silicone rubber.
6. vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device according to claim 1 is it is characterised in that described pressure
Force transducer is fixed on the bottom of described connecting portion by sealing ring.
7. the vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device according to claim 1 or 2 or 3 or 4 or 5 or 6, its
It is characterised by, the connecting portion outer wall of described package shell has an axial elongated slot.
8. vacuum circuit-breaker arc extinguishing chamber vacuum on-Line Monitor Device according to claim 7 is it is characterised in that described thin
The thickness of wall portion is 0.1～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973793.4A CN106356246B (en) | 2016-11-03 | 2016-11-03 | A kind of vacuum circuit-breaker arc extinguishing chamber vacuum degree on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973793.4A CN106356246B (en) | 2016-11-03 | 2016-11-03 | A kind of vacuum circuit-breaker arc extinguishing chamber vacuum degree on-Line Monitor Device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106356246A true CN106356246A (en) | 2017-01-25 |
| CN106356246B CN106356246B (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610973793.4A Expired - Fee Related CN106356246B (en) | 2016-11-03 | 2016-11-03 | A kind of vacuum circuit-breaker arc extinguishing chamber vacuum degree on-Line Monitor Device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170635A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | A kind of intelligent arc-control device of breaker |
| CN108172454A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | Electric locomotive high-voltage circuitbreaker |
| CN108172447A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch |
| CN108172455A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | A kind of electric locomotive disconnecting switch pole |
| CN108172453A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | Electric locomotive disconnecting switch |
| CN108320991A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch pole |
| CN108320990A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive circuit breaker polar |
| CN109751219A (en) * | 2018-12-30 | 2019-05-14 | 珠海市广源信科技有限公司 | A kind of control includes the vacuum system of vacuum generator |
| CN110488184A (en) * | 2019-09-25 | 2019-11-22 | 辽宁工程技术大学 | A kind of level measurement type Vacuity of Vacuum Circuit Breakers on-Line Monitor Device and method |
| CN114724886A (en) * | 2021-12-14 | 2022-07-08 | 博时达集团有限公司 | Permanent magnet outdoor vacuum circuit breaker |
| CN116313632A (en) * | 2023-04-07 | 2023-06-23 | 南京南电继保自动化有限公司 | Breaker vacuum degree on-line monitoring device |
| CN110488184B (en) * | 2019-09-25 | 2024-04-19 | 辽宁工程技术大学 | Online monitoring device and method for vacuum degree of level measurement type vacuum circuit breaker |
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| EP2079089A2 (en) * | 2008-01-09 | 2009-07-15 | Hitachi Ltd. | Vacuum switchgear and a method of diagnosing vacuum pressure thereof |
| CN102254736A (en) * | 2011-05-30 | 2011-11-23 | 山东鲁亿通智能电气股份有限公司 | Method for online monitoring vacuum degree of arc extinguishing chamber of vacuum switch of intelligent switch cabinet |
| CN202166436U (en) * | 2011-08-10 | 2012-03-14 | 平顶山市天勤仪表有限责任公司 | Telemetering monitor for micro water content in SF6 gas |
| CN102412089A (en) * | 2011-07-29 | 2012-04-11 | 河北工业大学 | Device for measuring vacuum degree of vacuum arc extinguish chamber with built-in cold cathode gauge |
| CN106024504A (en) * | 2016-06-15 | 2016-10-12 | 台州西普电气有限公司 | Vacuum circuit breaker with vacuum monitoring device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2079089A2 (en) * | 2008-01-09 | 2009-07-15 | Hitachi Ltd. | Vacuum switchgear and a method of diagnosing vacuum pressure thereof |
| CN102254736A (en) * | 2011-05-30 | 2011-11-23 | 山东鲁亿通智能电气股份有限公司 | Method for online monitoring vacuum degree of arc extinguishing chamber of vacuum switch of intelligent switch cabinet |
| CN102412089A (en) * | 2011-07-29 | 2012-04-11 | 河北工业大学 | Device for measuring vacuum degree of vacuum arc extinguish chamber with built-in cold cathode gauge |
| CN202166436U (en) * | 2011-08-10 | 2012-03-14 | 平顶山市天勤仪表有限责任公司 | Telemetering monitor for micro water content in SF6 gas |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170635A (en) * | 2017-07-04 | 2017-09-15 | 合肥东玖电气有限公司 | A kind of intelligent arc-control device of breaker |
| CN108320990A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive circuit breaker polar |
| CN108172455B (en) * | 2018-01-06 | 2023-12-15 | 北海银河开关设备有限公司 | Isolating switch pole of electrified locomotive |
| CN108172455A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | A kind of electric locomotive disconnecting switch pole |
| CN108172453A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | Electric locomotive disconnecting switch |
| CN108320991A (en) * | 2018-01-06 | 2018-07-24 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch pole |
| CN108172454A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | Electric locomotive high-voltage circuitbreaker |
| CN108172447A (en) * | 2018-01-06 | 2018-06-15 | 北海银河开关设备有限公司 | A kind of electric locomotive earthing switch |
| CN108172453B (en) * | 2018-01-06 | 2023-12-15 | 北海银河开关设备有限公司 | Isolating switch of electrified locomotive |
| CN109751219A (en) * | 2018-12-30 | 2019-05-14 | 珠海市广源信科技有限公司 | A kind of control includes the vacuum system of vacuum generator |
| CN110488184A (en) * | 2019-09-25 | 2019-11-22 | 辽宁工程技术大学 | A kind of level measurement type Vacuity of Vacuum Circuit Breakers on-Line Monitor Device and method |
| CN110488184B (en) * | 2019-09-25 | 2024-04-19 | 辽宁工程技术大学 | Online monitoring device and method for vacuum degree of level measurement type vacuum circuit breaker |
| CN114724886A (en) * | 2021-12-14 | 2022-07-08 | 博时达集团有限公司 | Permanent magnet outdoor vacuum circuit breaker |
| CN116313632B (en) * | 2023-04-07 | 2023-11-17 | 南京南电继保自动化有限公司 | Breaker vacuum degree on-line monitoring device |
| CN116313632A (en) * | 2023-04-07 | 2023-06-23 | 南京南电继保自动化有限公司 | Breaker vacuum degree on-line monitoring device |
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