CN209515555U - Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet - Google Patents
Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet Download PDFInfo
- Publication number
- CN209515555U CN209515555U CN201822239460.6U CN201822239460U CN209515555U CN 209515555 U CN209515555 U CN 209515555U CN 201822239460 U CN201822239460 U CN 201822239460U CN 209515555 U CN209515555 U CN 209515555U
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- Prior art keywords
- vacuum
- vacuity
- circuit breakers
- mounting seat
- glass insulation
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Abstract
The utility model discloses Vacuity of Vacuum Circuit Breakers on-Line Monitor Devices in a kind of high-tension switch cabinet, it is characterized by: the vacuum interrupter is mounted in the centre bore of glass insulation shell, electrostatic guide rod is mounted in lower mounting seat centre bore and electrostatic guide rod top is located in vacuum extinction room, moving conductive rod is mounted in the mounting hole of upper mounting seat and moving conductive rod bottom is located in vacuum extinction room, bellows-sheathed is on moving conductive rod, operating mechanism metal shell is mounted on the left of glass insulation shell, epoxy resin board is mounted on operating mechanism metal shell right side, three-phase electric field detection sensor is mounted on epoxy resin board right side.The utility model combination coupled capacitor method and electric discharge high-frequency impulse method detect electric field change and local discharge signal simultaneously, to realize the on-line monitoring of Vacuity of Vacuum Circuit Breakers, transformation of the Vacuity of Vacuum Circuit Breakers monitoring from traditional interruption maintenance to repair based on condition of component is realized, and using effect is good.
Description
Technical field
The utility model belongs to a kind of switchgear vacuum degree measurement technical field, and in particular to true in a kind of high-tension switch cabinet
Empty vacuum degree on-Line Monitor Device.
Background technique
Vacuum circuit breaker using the high vacuum with excellent arc extinction performance as between contact insulation and arc-extinguishing medium, wherein most
Important component is vacuum interrupter.Vacuum degree in vacuum extinction room is the important parameter of vacuum circuit breaker, is directly related to
Resistance to voltage levels and breaking capacity during storage life of vacuum circuit breaker, work, also affect the safety and stability of electric system
Operation.Currently, vacuum degree on-line monitoring mainly has electro-optical conversion method, coupled capacitor method, electric discharge high-frequency impulse method, electric discharge sound emission
Method etc., but there is certain defect in these methods, it is difficult to it promotes, especially monitoring effect is poor, is unable to satisfy in high-tension switch cabinet
The vacuum-degree monitoring of vacuum circuit breaker.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high-voltage switch gear in view of the above shortcomings of the prior art
Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in cabinet detects electric field in conjunction with coupled capacitor method and electric discharge high-frequency impulse method simultaneously
Variation and local discharge signal, the on-line monitoring of Lai Shixian Vacuity of Vacuum Circuit Breakers realize Vacuity of Vacuum Circuit Breakers prison
The transformation from traditional interruption maintenance to repair based on condition of component is surveyed, and using effect is good.
To realize the above-mentioned technical purpose, the technical solution that the utility model is taken are as follows:
Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet, it is characterised in that: including electrostatic guide rod,
Epoxy resin board, operating mechanism metal shell, coaxial cable, three-phase electric field detection sensor, upper mounting seat, moving conductive rod, wave
Line pipe, glass insulation shell, contact system, vacuum interrupter, lower mounting seat, multiplexer, power frequency component and discharge pulse
Signal extracting circuit, A/D conversion module, single-chip microcontroller, RS-485 interface module, sound light alarming circuit and FRAM module, it is described
Lower mounting seat is fixedly mounted in glass insulation outer casing bottom mounting hole, and the upper mounting seat is fixedly mounted on outside glass insulation
In shell top mounting holes, the vacuum interrupter is mounted in the centre bore of glass insulation shell and vacuum interrupter bottom card
In the groove floor of glass insulation housing center hole, the electrostatic guide rod is fixedly mounted in lower mounting seat centre bore and electrostatic
Guide rod top is located in vacuum extinction room, and the moving conductive rod is mounted in the mounting hole of upper mounting seat and moving conductive rod bottom
In vacuum extinction room, the bellows-sheathed is on moving conductive rod and bellows is located at upper mounting seat and vacuum extinction ceiling
Between face, the contact system be mounted in vacuum extinction room and contact system respectively with electrostatic guide rod right side and moving conductive
The connection of bar right side, the operating mechanism metal shell are mounted on the left of glass insulation shell, and the epoxy resin board is solid
On operating mechanism metal shell right side, the three-phase electric field detection sensor is fixedly mounted on epoxy resin board for Dingan County
On right side, the coaxial cable is connect by the through-hole on epoxy resin board with three-phase electric field detection sensor, described
Three-phase electric field detection sensor is connect with multiplexer, and the multiplexer is mentioned with power frequency component and discharge pulse signal
Sense circuit connection, the power frequency component extract circuit with discharge pulse signal and connect with A/D conversion module, and the multichannel is multiple
It is all connect with single-chip microcontroller with device, A/D conversion module and sound light alarming circuit, the RS-485 interface module and FRAM module are all
It is connected with single-chip microcontroller.
485 chip ADM2587 of single supply isolated form is installed in above-mentioned RS-485 interface module.
Multi-functional iron memory FM3116 is installed in above-mentioned FRAM module.
Above-mentioned epoxy resin board is L shape structure type.
Above-mentioned upper mounting seat is " T " shape structure form.
Three-phase electric field detection sensor is inverted "L" shape slab construction, aluminum alloy material, the back side and top in the utility model
It is bonded using epoxy resin board, lead-out wire uses coaxial cable；It is directly anchored on operating mechanism metal shell, is not required to when installation
Operating mechanism ontology is transformed.
In the monitoring system, the coupled capacitor in vacuum interrupter between shielding case and three-phase electric field detection sensor is
C1, the coupled capacitor between three-phase electric field detection sensor and operating mechanism metal shell is C2, and operating mechanism metal shell is over the ground
Coupled capacitor be C3.When vacuum degree decline, the indoor gas density of arc extinguishing becomes larger, and the electronics of field emission is by gas molecule
Absorption becomes anion, and since anion quality is big, drift velocity is slow, electronic current reduces, Shielding tensor absolute value
It reduces.The process can cause the charge on capacitor C1, C2 and C3 to redistribute, and be by the current potential U1 between detection capacitor C2 and ground
The variation tendency of Shielding tensor can be detected indirectly.When vacuum degree further declines, U1 will show periodically pulsing electricity
Position, frequency and amplitude by detecting this specific period pulse potential are that can determine whether the decline degree of vacuum degree.By this
When monitoring system measures in arc-chutes vacuum degree decline to a certain extent, the high-frequency discharge pulse frequency generated on shielding case is main
Concentrate on 5~20kHz.200M bandwidth multiplexer acquisition time three-phase electric field detection sensor is used in monitoring device front end
Signal, the discharge pulse for then extracting circuit extraction power frequency component and specific period through power frequency component and discharge pulse signal are believed
Number.Wherein, power frequency component is used to judge the downward trend of vacuum degree, and the discharge pulse signal of specific period is for judging vacuum degree
Decline degree.By transferring to after A/D conversion module, single-chip microcontroller carries out the analysis processing of criterion to last two paths of signals and data are deposited
Storage, warning output and telecommunication etc..Meanwhile single-chip microcontroller generate special frequency band all the way swept-frequency signal (i.e. self-test signal) it is logical
It crosses multiplexer and is applied to power frequency component and discharge pulse signal extraction circuit, for simulating local discharge signal, to examine
It tests power frequency component and discharge pulse signal extracts circuit and has fault-free, three-phase electric field detection sensor signal and self-test signal pass through
Channel control signals control multiplexer and realize the time-sharing multiplex for extracting circuit to power frequency component and discharge pulse signal.
RS-485 interface module realizes the transmission of digital signal by the way of balance transmission and differential received, has extremely strong
Inhibition common mode interference ability.
The utility model has the advantage of the followings: detecting electricity simultaneously in conjunction with coupled capacitor method and electric discharge high-frequency impulse method
Field variation and local discharge signal, the on-line monitoring of Lai Shixian Vacuity of Vacuum Circuit Breakers realize Vacuity of Vacuum Circuit Breakers
The transformation from traditional interruption maintenance to repair based on condition of component is monitored, and using effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the control structure schematic diagram of the utility model；
Fig. 3 is the circuit diagram of the RS-485 interface module in the utility model；
Fig. 4 is the circuit diagram of the FRAM module in the utility model.
Appended drawing reference therein are as follows: electrostatic guide rod 1, epoxy resin board 2, operating mechanism metal shell 3, coaxial cable 4, three
Phase electric field detecting sensor 5, upper mounting seat 6, moving conductive rod 7, bellows 8, glass insulation shell 9, contact system 10, vacuum are gone out
Arc chamber 11, lower mounting seat 12, multiplexer 13, power frequency component and discharge pulse signal extract circuit 14, A/D conversion module
15, single-chip microcontroller 16, RS-485 interface module 17, sound light alarming circuit 18, FRAM (ferroelectric memory) module 19.
Specific embodiment
Specific embodiment of the present utility model is further illustrated with reference to the accompanying drawing:
Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet, it is characterised in that: including electrostatic guide rod
1, epoxy resin board 2, operating mechanism metal shell 3, coaxial cable 4, three-phase electric field detection sensor 5, upper mounting seat 6, dynamic lead
Electric pole 7, bellows 8, glass insulation shell 9, contact system 10, vacuum interrupter 11, lower mounting seat 12, multiplexer 13,
Power frequency component and discharge pulse signal extract circuit 14, A/D conversion module 15, single-chip microcontroller 16, RS-485 interface module 17, acousto-optic
Warning circuit 18 and FRAM module 19, the lower mounting seat 12 are fixedly mounted in 9 bottom mounting apertures of glass insulation shell, institute
The upper mounting seat 6 stated is fixedly mounted in 9 top mounting holes of glass insulation shell, and the vacuum interrupter 11 is mounted on glass
In the centre bore of insulation crust 9 and 11 bottom of vacuum interrupter is stuck in 9 centre bore groove floor of glass insulation shell, described
Electrostatic guide rod 1 is fixedly mounted in 12 centre bore of lower mounting seat and 1 top of electrostatic guide rod is located in vacuum interrupter 11, described
Moving conductive rod 7 is mounted in the mounting hole of upper mounting seat 6 and 7 bottom of moving conductive rod is located in vacuum interrupter 11, the wave
8 sets of line pipe on moving conductive rod 7 and bellows 8 is located between 11 top surface of upper mounting seat 6 and vacuum interrupter, the contact system
System 10 is mounted in vacuum interrupter 11 and contact system 10 connects with 1 right side of electrostatic guide rod and 7 right side of moving conductive rod respectively
It connects, the operating mechanism metal shell 3 is mounted on 9 left side of glass insulation shell, and the epoxy resin board 2 is fixedly mounted on
On 3 right side of operating mechanism metal shell, the three-phase electric field detection sensor 5 is fixedly mounted on 2 right side of epoxy resin board
On face, the coaxial cable 4 is connect by the through-hole on epoxy resin board 2 with three-phase electric field detection sensor 5, and described three
Phase electric field detecting sensor 5 is connect with multiplexer 13, and the multiplexer 13 and power frequency component and discharge pulse are believed
Number extracting circuit 14 connects, and the power frequency component and discharge pulse signal extraction circuit 14 are connect with A/D conversion module 15, institute
Multiplexer 13, A/D conversion module 15 and the sound light alarming circuit 18 stated all are connect with single-chip microcontroller 16, and the RS-485 connects
Mouth mold block 17 and FRAM module 19 are all connected with single-chip microcontroller 16.
In embodiment, 485 chip ADM2587 of single supply isolated form is installed in RS-485 interface module 17.
In embodiment, multi-functional iron memory FM3116 is installed in FRAM module 19.
In embodiment, epoxy resin board 2 is L shape structure type.
In embodiment, upper mounting seat 6 is " T " shape structure form.
Above are merely preferred embodiments of the utility model, the protection scope of the utility model is not limited merely to above-mentioned
Embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should be pointed out that pair
For those skilled in the art, several improvements and modifications without departing from the principle of the utility model,
It should be regarded as the protection scope of the utility model.
Claims (5)
1. Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet, it is characterised in that: including electrostatic guide rod
(1), epoxy resin board (2), operating mechanism metal shell (3), coaxial cable (4), three-phase electric field detection sensor (5), upper peace
Fill seat (6), moving conductive rod (7), bellows (8), glass insulation shell (9), contact system (10), vacuum interrupter (11), under
Mounting base (12), multiplexer (13), power frequency component and discharge pulse signal extract circuit (14), A/D conversion module (15),
Single-chip microcontroller (16), RS-485 interface module (17), sound light alarming circuit (18) and FRAM module (19), the lower mounting seat
(12) it is fixedly mounted in glass insulation shell (9) bottom mounting apertures, the upper mounting seat (6) is fixedly mounted on glass insulation
In shell (9) top mounting holes, the vacuum interrupter (11) is mounted in the centre bore of glass insulation shell (9) and vacuum
Arc-chutes (11) bottom is stuck in glass insulation shell (9) centre bore groove floor, and the electrostatic guide rod (1) is fixedly mounted on
In lower mounting seat (12) centre bore and electrostatic guide rod (1) top is located in vacuum interrupter (11), moving conductive rod (7) peace
In the mounting hole of upper mounting seat (6) and moving conductive rod (7) bottom is located in vacuum interrupter (11), the bellows
(8) it covers on moving conductive rod (7) and bellows (8) is located between upper mounting seat (6) and vacuum interrupter (11) top surface, it is described
Contact system (10) is mounted in vacuum interrupter (11) and contact system (10) is led with electrostatic guide rod (1) right side and moving respectively
The connection of electric pole (7) right side, the operating mechanism metal shell (3) are mounted on the left of glass insulation shell (9), the ring
Oxygen resin plate (2) is fixedly mounted on operating mechanism metal shell (3) right side, the three-phase electric field detection sensor (5)
Be fixedly mounted on epoxy resin board (2) right side, the coaxial cable (4) by through-hole on epoxy resin board (2) with
Three-phase electric field detection sensor (5) connection, the three-phase electric field detection sensor (5) are connect with multiplexer (13), institute
The multiplexer (13) stated and power frequency component extract circuit (14) with discharge pulse signal and connect, the power frequency component with put
Electric impulse signal extracts circuit (14) and connect with A/D conversion module (15), the multiplexer (13), A/D conversion module
(15) it is all connect with single-chip microcontroller (16) with sound light alarming circuit (18), the RS-485 interface module (17) and FRAM module
(19) all it is connected with single-chip microcontroller (16).
2. Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet according to claim 1, feature
It is: 485 chip ADM2587 of single supply isolated form is installed in the RS-485 interface module (17).
3. Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet according to claim 1, feature
It is: multi-functional iron memory FM3116 is installed in the FRAM module (19).
4. Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet according to claim 1, feature
Be: the epoxy resin board (2) is L shape structure type.
5. Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet according to claim 1, feature
Be: the upper mounting seat (6) is " T " shape structure form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239460.6U CN209515555U (en) | 2018-12-28 | 2018-12-28 | Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239460.6U CN209515555U (en) | 2018-12-28 | 2018-12-28 | Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209515555U true CN209515555U (en) | 2019-10-18 |
Family
ID=68198200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822239460.6U Expired - Fee Related CN209515555U (en) | 2018-12-28 | 2018-12-28 | Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209515555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585217A (en) * | 2018-12-28 | 2019-04-05 | 宝亨新电气（集团）有限公司 | Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet |
-
2018
- 2018-12-28 CN CN201822239460.6U patent/CN209515555U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585217A (en) * | 2018-12-28 | 2019-04-05 | 宝亨新电气（集团）有限公司 | Vacuity of Vacuum Circuit Breakers on-Line Monitor Device in a kind of high-tension switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |