CN102800523B - Solid-sealed polar pole realizing on-line monitoring of vacuum degree - Google Patents
Solid-sealed polar pole realizing on-line monitoring of vacuum degree Download PDFInfo
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- CN102800523B CN102800523B CN201210280362.1A CN201210280362A CN102800523B CN 102800523 B CN102800523 B CN 102800523B CN 201210280362 A CN201210280362 A CN 201210280362A CN 102800523 B CN102800523 B CN 102800523B
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Abstract
The invention discloses a solid-sealed polar pole realizing on-line monitoring of vacuum degree. The solid-sealed polar pole comprises a vacuum arc extinguish chamber, an ion column and a vacuum sensor, wherein the vacuum sensor is arranged at the top part of the vacuum arc extinguish chamber; the ion column is arranged at a side wall of the vacuum arc extinguish chamber; one end of the ion column is connected with the ground; the other end of the ion column is connected with the upper end of the vacuum sensor; a permanent magnet is arranged outside a working chamber of the vacuum sensor; and the vacuum arc extinguish chamber, the ion column, the vacuum sensor and the permanent magnet are solidly sealed integrally through epoxy resin. According to the solid-sealed polar pole, a vacuum degree on-line monitoring technology of the vacuum arc extinguish chamber is combined with an epoxy solid-sealing technology; the installation and fixation modes of the ion column are considered in the internal structure; and the ion column is encapsulated into solid-sealed polar pole by using epoxy resin, so that the on-line monitoring on the vacuum degree of the vacuum arc extinguish chamber of a vacuum switch under the use state is realized. And moreover the vacuum switch has the capacity of detecting a fault precursor, an early warning or an alarming message can be sent out in time before the fault actually happens, so that the happening of an accident is prevented.
Description
Technical field
The present invention relates to a kind of pole, particularly relate to a kind of pole with vacuum degree on-line monitoring, belong to pole technical field.
Background technology
In middle pressure field, particularly 12KV and 40.5KV electric pressure, vacuum switch is defeated in departments such as electric power, metallurgy, chemical industry, mines, be widely used in distribution system.At present, the pole in high-pressure vacuum breaker comprises vacuum interrupter and epoxyresin insulator, and vacuum interrupter is flush-mounted in epoxyresin insulator.During high-pressure vacuum breaker work, the vacuum degree of vacuum extinction indoor must be greater than a certain vacuum degree, when only having the vacuum degree of vacuum extinction indoor to be greater than a certain vacuum degree, guarantee high-pressure vacuum breaker normally works, otherwise vacuum interrupter can not effective arc extinguishing, under serious conditions, vacuum circuit-breaker will be blasted, device damage accident and transmission line is caused to have a power failure, cause serious economic loss, therefore, the vacuum degree of vacuum extinction indoor is the main parameter indexs of high-pressure vacuum breaker.The deterioration of vacuum degree in arc control device, not only reduces the ability of Vacuum Circuit Breaker electric arc and in running, tolerates inside and outside superpotential ability, and extremely difficulty open failure electric current effectively.Therefore, in the urgent need to monitoring the vacuum degree of vacuum interrupter in vacuum switch in operation.
At present, off-line monitoring and the large class of on-line monitoring two can be divided into the method for testing of vacuum level of vacuum arc-quenching chamber in vacuum switch.The method of off-line monitoring has a lot, and magnetic control discharge method is wherein a kind of repeatability method for quantitative measuring preferably, and is widely used.Off-line monitoring must be detect under powering-off state, can not Real-Time Monitoring vacuum degree, truly cannot get rid of and cause vacuum switch to lose the hidden danger of connecting-disconnecting function because vacuum degree reduces.Therefore, need to adopt on-line monitoring, namely vacuum degree of vacuum switch on-line monitoring is under the prerequisite of not changing switch main body structure and running status, will monitor the change of its vacuum degree at any time.At present, the method for vacuum degree on-line monitoring mainly contains electro-optical conversion method and coupling capacitance method, these class methods exist vacuum measurement ranges narrow, cannot to realize the monitoring of vacuum pressure change procedure and measurement sensistivity awaits the problem verified further.
Summary of the invention
The object of the invention is to: a kind of pole with vacuum degree on-line monitoring is provided, vacuum switch is enjoyed in solution cannot realize early warning, adopt off-line monitoring can not the technical problem of Real-Time Monitoring vacuum degree, thus can effectively solve above-mentioned problems of the prior art.
The object of the invention is realized by following technical proposals: a kind of pole with vacuum degree on-line monitoring, comprise vacuum interrupter, ion column and vacuum transducer, vacuum transducer is located at the top of vacuum interrupter, ion column is located at the sidewall of vacuum interrupter, one end of described ion column is connected to the ground, the other end is connected with the upper end of vacuum transducer, be provided with permanent magnet outside the working chamber of described vacuum transducer, described vacuum interrupter, ion column, vacuum transducer become to be integrated by epoxy resin sealing with permanent magnet.
As a kind of optimal way, described vacuum transducer is the Penning gauge adopting Penning discharge principle, its internal work chamber communicates with vacuum in vacuum interrupter pipe, vacuum transducer makes the ion directed movement in vacuum transducer working chamber after gas ionization by permanent magnet and the Electric and magnetic fields adding the line voltage formation be located on vacuum interrupter, forms ion current.
As a kind of optimal way, described ion column comprises winding successively and the rectifier diode, current-limiting resistance, sampling resistor and the isolation resistance that are solidificated in by fluid silicone rubber on glass mat.
As further preferred embodiment, the output of described vacuum transducer is connected with the signal input part of ion column, signal input part is connected with isolation resistance with current-limiting resistance, sampling resistor successively by after a rectifier diode, a voltage stabilizing didoe in parallel at described sampling resistor two ends, and be connected with signal output part.
As further preferred embodiment, described rectifier diode is the high-voltage diode that tolerance reverse voltage is high.
As further preferred embodiment, described current-limiting resistance is in series by least 72 high-power resistances.
As a kind of optimal way, described vacuum transducer is exported by ion column collection after the vacuum pressure of vacuum interrupter is converted to the signal of telecommunication.
As further preferred embodiment, the operating voltage of described vacuum transducer takes from the phase voltage adding and be located at line voltage on vacuum interrupter.
As a kind of optimal way, described vacuum interrupter and vacuum transducer connection are provided with silastic cord breaker.
The course of work of the present invention is:
The pole of band vacuum degree on-line monitoring of the present invention, adopts Penning discharge principle (Penning discharge principle: a large amount of electronics, by magnetically confined, is pressed close to anode canister with the form of roller line and rotated, form one deck electron cloud.The speed of rotating electron cloud is about 100 order of megahertz, and electron density can reach 1010/cm
3magnitude.) making vacuum transducer, vacuum transducer is preset on vacuum interrupter, and vacuum transducer inner space communicates with space in vacuum interrupter pipe.During vacuum switch hanging net operation, once line voltage is added on vacuum interrupter, every alternating voltage that relatively there is 5780V/20210V of 10KV/35KV line voltage, i.e. phase voltage, the DC pulse voltage that this phase voltage becomes about 3000V/9100V after halfwave rectifier is added on vacuum transducer, as the operating voltage of vacuum transducer, vacuum transducer is started working.Corresponding to the pressure in different pipe, in ion column, produce corresponding ion current, after carrying out signal of telecommunication sampling by sample resistance, pass through signals collecting, after process, finally show, so just achieve the on-line monitoring principle of vacuum switch vacuum level of vacuum arc-quenching chamber.This technology has pressure effective range and is generally 10
0pa ~ 10
-4pa, between ionization vacuum ga(u)ge and thermocouple vacuum gage, sensitivity is higher, realizes the advantage of long service life.
Compared with prior art, beneficial effect of the present invention: the pole of band vacuum degree on-line monitoring of the present invention is by vacuum level of vacuum arc-quenching chamber on-line monitoring technique and epoxy resin seal combine with technique, internal structure is considered installation and the fixed form of ion column, and with epoxy resin enclosed one-tenth pole, achieve the on-line monitoring of vacuum switch vacuum level of vacuum arc-quenching chamber in a state of use, and this vacuum switch has the ability of detection failure omen, just can provide alert in time or warning message before the failure actually occurs, avoid the generation of accident.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the pole of band vacuum degree on-line monitoring of the present invention;
Fig. 2 is the schematic diagram of the vacuum interrupter with vacuum transducer in Fig. 1;
Fig. 3 is the schematic diagram of Fig. 1 intermediate ion post.
Wherein: 1-vacuum interrupter, 2-ion column, 3-vacuum transducer, 4-permanent magnet, 5-vacuum interrupter, 11-signal input part, 12-rectifier diode, 13-current-limiting resistance, 14-sampling resistor, 15-isolation resistance, 16-voltage stabilizing didoe, 17-signal output part.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
All features disclosed in this specification, or the step in disclosed all methods or process, except the speciality mutually repelled and/or step, all can combine by any way, unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object, namely, unless specifically stated otherwise, an embodiment in a series of equivalence of each feature or similar characteristics.
Embodiment
As shown in Figure 1, the pole of band vacuum degree on-line monitoring of the present invention is by vacuum level of vacuum arc-quenching chamber on-line monitoring technique and epoxy resin seal combine with technique, it comprises vacuum interrupter 1, ion column 2 and vacuum transducer 3, vacuum transducer 3 is located at the top of vacuum interrupter 1, and described vacuum interrupter 1 is provided with silastic cord breaker with vacuum transducer 3 connection, ion column 2 is located at the sidewall of vacuum interrupter 1, one end of described ion column 2 is connected to the ground, the other end is connected with the upper end of vacuum transducer 3, the operating voltage of described vacuum transducer 3 takes from the phase voltage adding and be located at line voltage on vacuum interrupter 5, after the vacuum pressure of vacuum interrupter 1 is converted to the signal of telecommunication by vacuum transducer 3, exported by ion column 2 collection, outside the working chamber of vacuum transducer 3, be provided with permanent magnet 4, described vacuum interrupter 1, ion column 2, vacuum transducer 3 become to be integrated by epoxy resin sealing with permanent magnet 4.
As shown in Figure 2: described vacuum transducer 3 is the Penning gauge adopting Penning discharge principle, its internal work chamber and vacuum interrupter 5 are managed interior vacuum and are communicated, vacuum transducer 3 makes the ion directed movement in vacuum transducer 3 working chamber after gas ionization by permanent magnet 4 and the Electric and magnetic fields adding the line voltage formation be located on vacuum interrupter 5, forms ion current; The size of this ion current is relevant with residual gas in vacuum transducer 3 working chamber, that is relevant with gas pressure in vacuum interrupter pipe.
As shown in Figure 3, described ion column 2 comprises winding successively and the rectifier diode 12, current-limiting resistance 13, sampling resistor 14 and the isolation resistance 15 that are solidificated in by fluid silicone rubber on glass mat; The output of described vacuum transducer 3 is connected with the signal input part 11 of ion column 2, signal input part is connected with isolation resistance 15 with current-limiting resistance 13, sampling resistor 14 successively by after a rectifier diode 12, a voltage stabilizing didoe 16 in parallel at described sampling resistor 14 two ends, and be connected with signal output part 17; Described rectifier diode is the high-voltage diode that tolerance reverse voltage is high; Described current-limiting resistance is in series by least 72 high-power resistances.
During work, on the one hand, the alternating voltage on electrical network, through ion column rectifies, becomes the working chamber that direct voltage is added in vacuum transducer 3, as the operating voltage of vacuum transducer 3.On the other hand, the d. c. voltage signal that ion current signal is changed into low-voltage by the sampling resistor on ion column 2 exports, and completes the collection of signal.In design, rectifier diode selects the high-voltage diode that tolerance reverse voltage is high, and multiple high-voltage diode series connection is with the requirement meeting line voltage insulation against ground; Current-limiting resistance plays the protective effect to measuring circuit simultaneously, and it is in series by 72 high-power resistances.
Ion column 2 is before sealing, said elements is arranged in order on the glass mat being wrapped in 16mm × 374mm × 2mm, then is positioned on moulding mould special, by APG technique fluid silicone rubber injected cavity forming and solidify, technique curing temperature 120 DEG C, curing time is 3 hours; Like this by element surrounding filling gel, the ion column 2 that numerous electronic component is formed is encapsulated as a whole, and silica gel also plays cushioning effect simultaneously, contributes to the sealing of epoxy resin.
Pole APG manufacture craft point twice are carried out: first form certain thickness silastic cord breaker by APG technique fluid silicone rubber curing process at the band ceramic package of vacuum interrupter 1 of vacuum transducer and the surrounding of vacuum transducer 3, prevent vacuum interrupter 1 housing pottery and vacuum transducer 3 ftractureing because thermal coefficient of expansion is different from during epoxy resin sealing; Secondly, on mould, fix vacuum interrupter 1 and ion column 2 according to design, then by APG technique, liquid-state epoxy resin injection moulding die cavity is solidify to form pole, APG technique is first 160 DEG C/1 hour, is then 140 DEG C/12 hours.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the pole with vacuum degree on-line monitoring, it is characterized in that: comprise vacuum interrupter (1), ion column (2) and vacuum transducer (3), vacuum transducer (3) is located at the top of vacuum interrupter (1), ion column (2) is located at the sidewall of vacuum interrupter (1), one end of described ion column (2) is connected to the ground, the other end is connected with the upper end of vacuum transducer (3), permanent magnet (4) is provided with outside the working chamber of described vacuum transducer (3), described vacuum interrupter (1), ion column (2), vacuum transducer (3) becomes to be integrated by epoxy resin sealing with permanent magnet (4), described vacuum transducer (3) is the Penning gauge adopting Penning discharge principle, its internal work chamber communicates with vacuum in vacuum interrupter pipe, the Electric and magnetic fields that the line voltage that vacuum transducer (3) is located on vacuum interrupter by permanent magnet (4) and adding is formed makes the ion directed movement in vacuum transducer (3) working chamber after gas ionization, forms ion current, described ion column (2) comprises winding successively and the rectifier diode (12), current-limiting resistance (13), sampling resistor (14) and the isolation resistance (15) that are solidificated in by fluid silicone rubber on glass mat, described vacuum interrupter (1) and vacuum transducer (3) connection are provided with silastic cord breaker.
2. the pole of band vacuum degree on-line monitoring as claimed in claim 1, it is characterized in that: the output of described vacuum transducer (3) is connected with the signal input part (11) of ion column (2), signal input part is connected with isolation resistance (15) with current-limiting resistance (13), sampling resistor (14) successively by after a rectifier diode (12), a voltage stabilizing didoe (16) in parallel at described sampling resistor (14) two ends, and sampling resistor (14) is connected with signal output part (17).
3. the pole of band vacuum degree on-line monitoring as claimed in claim 2, is characterized in that: described rectifier diode (12) is the high-voltage diode that tolerance reverse voltage is high.
4. the pole of band vacuum degree on-line monitoring as claimed in claim 2, is characterized in that: described current-limiting resistance (13) is in series by least 72 high-power resistances.
5. the pole of band vacuum degree on-line monitoring as claimed in claim 1, be is characterized in that: after the vacuum pressure of vacuum interrupter (1) is converted to the signal of telecommunication by described vacuum transducer (3), is exported by ion column (2) collection.
6. the pole of band vacuum degree on-line monitoring as claimed in claim 5, is characterized in that: the operating voltage of described vacuum transducer (3) takes from the phase voltage adding and be located at line voltage on vacuum interrupter.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210280362.1A CN102800523B (en) | 2012-08-08 | 2012-08-08 | Solid-sealed polar pole realizing on-line monitoring of vacuum degree |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210280362.1A CN102800523B (en) | 2012-08-08 | 2012-08-08 | Solid-sealed polar pole realizing on-line monitoring of vacuum degree |
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| Publication Number | Publication Date |
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| CN102800523A CN102800523A (en) | 2012-11-28 |
| CN102800523B true CN102800523B (en) | 2015-01-28 |
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| CN201210280362.1A Active CN102800523B (en) | 2012-08-08 | 2012-08-08 | Solid-sealed polar pole realizing on-line monitoring of vacuum degree |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413721B (en) * | 2013-08-14 | 2015-09-02 | 北京科锐配电自动化股份有限公司 | Vacuity of Vacuum Circuit Breakers on-line monitoring system |
| CN104538241B (en) * | 2014-12-31 | 2017-06-06 | 金盘电气集团（上海）有限公司 | Vacuum plant plug-assembly using sealing technology and preparation method thereof |
| CN106683939B (en) * | 2017-02-10 | 2018-12-11 | 孙光明 | A kind of gas-filling cabinet high leakproofness pole |
| CN109633315B (en) * | 2018-12-18 | 2020-11-17 | 米艾西(福建)测控技术有限公司 | Insulation glue filling method for realizing no air bubble |
| CN114724886B (en) * | 2021-12-14 | 2022-11-15 | 博时达集团有限公司 | Permanent magnet outdoor vacuum circuit breaker |
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| CN201741630U (en) * | 2010-06-09 | 2011-02-09 | 成都凯赛尔电子有限公司 | Vacuum switch tube with vacuum transducer |
| CN201765085U (en) * | 2010-07-02 | 2011-03-16 | 成都旭顺电子有限责任公司 | On-line vacuum monitoring device for vacuum switch of 27.5kV |
| CN202258999U (en) * | 2011-08-05 | 2012-05-30 | 安徽鑫龙电器股份有限公司 | Circuit breaker with online vacuum degree monitoring function |
| CN202749296U (en) * | 2012-08-08 | 2013-02-20 | 成都凯赛尔电子有限公司 | Solid-encapsulated pole with vacuum degree on-line monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3788148B2 (en) * | 1999-12-16 | 2006-06-21 | 株式会社日立製作所 | Vacuum switch and operation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201741630U (en) * | 2010-06-09 | 2011-02-09 | 成都凯赛尔电子有限公司 | Vacuum switch tube with vacuum transducer |
| CN201765085U (en) * | 2010-07-02 | 2011-03-16 | 成都旭顺电子有限责任公司 | On-line vacuum monitoring device for vacuum switch of 27.5kV |
| CN202258999U (en) * | 2011-08-05 | 2012-05-30 | 安徽鑫龙电器股份有限公司 | Circuit breaker with online vacuum degree monitoring function |
| CN202749296U (en) * | 2012-08-08 | 2013-02-20 | 成都凯赛尔电子有限公司 | Solid-encapsulated pole with vacuum degree on-line monitoring |
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| CN102800523A (en) | 2012-11-28 |
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Effective date of registration: 20211227 Address after: 610000 floor 1, building 3, No. 99, Huanghe Road, Xindu street, Xindu District, Chengdu, Sichuan Patentee after: Chengdu kaisaier Technology Co.,Ltd. Address before: No. 99, Huanghe Road, East Industrial Zone, Xindu District, Chengdu, Sichuan 610500 Patentee before: CHENGDU KAISAIER ELECTRONICS Co.,Ltd. |
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