CN110223880A - A kind of intelligent breaker handcart - Google Patents
A kind of intelligent breaker handcart Download PDFInfo
- Publication number
- CN110223880A CN110223880A CN201910671838.6A CN201910671838A CN110223880A CN 110223880 A CN110223880 A CN 110223880A CN 201910671838 A CN201910671838 A CN 201910671838A CN 110223880 A CN110223880 A CN 110223880A
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- Prior art keywords
- contact arm
- vacuum
- ring
- current detecting
- induced electricity
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- 238000012544 monitoring process Methods 0.000 claims abstract description 66
- 230000005611 electricity Effects 0.000 claims description 36
- 239000013307 optical fiber Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 25
- 150000002739 metals Chemical class 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000003973 paint Substances 0.000 claims description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 239000005083 Zinc sulfide Substances 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 4
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 4
- 229920000180 alkyd Polymers 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 abstract description 5
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- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
Abstract
The invention discloses a kind of intelligent breaker handcarts, and including the upper contact arm being connected with upper wire outlet seat, the lower contact arm being connected with lower wire outlet seat connects vacuum interrupter between the upper wire outlet seat and lower wire outlet seat, further include monitoring system, contact arm measure annular device；Vacuum degree of the monitoring system to monitor vacuum interrupter, contact arm measure annular device are used to monitor the electric current and temperature information of contact arm.The present invention is complicated for operation to the vacuum-degree monitoring that solves vacuum interrupter in high-pressure vacuum breaker in the prior art, is difficult to real-time monitoring, and the monitoring mode of contact arm is single, the problem of temperature measurement result can not link with size of current, it realizes and simply, accurately the vacuum degree of vacuum interrupter is monitored on-line, and stable acquisition circuit breaker contact arm Real-time Monitoring Data, convenient for the purpose for handling temperature and current information linkage.
Description
Technical field
The present invention relates to vacuum circuit breaker fields, and in particular to a kind of intelligent breaker handcart.
Background technique
Vacuum circuit breaker is to cut-off device in the extremely promising electric power of low pressure and middle pressure field, it be with vacuum for insulation and
The device for switching of arc quenching medium.Gas molecule is extremely rare in vacuum, and the chance that electron and molecule collides is few, therefore vacuum is disconnected
The dielectric strength of road device is very high.Vacuum circuit breaker has safe and reliable, service life length, maintenance mans compared with other types breaker
Work amount is small, the advantages that not polluting the environment.Breaker body and vehicle frame are fixed on a chassis, form circuit breaker cart.Due to
Hands injured has good interchangeability, therefore can greatly improve the reliability of power supply.Its concrete operating principle are as follows: circuit breaker cart
After being pushed to operating position, operating mechanism drives vacuum interrupter to close a floodgate by insulated pull rod and other devices, and electric current is through upper plum
Flower contact introduce, flow through wire outlet seat, upper contact arm, vacuum interrupter inner cavity dynamic and static contact, pass through lower contact arm, lower plum blossom touching
Head is fed out to route or equipment, when meeting with fault trip or needing interruption maintenance equipment, after operating mechanism receives trip signal
Movement moves vacuum interrupter separating brake by insulated pull rod and other device bands, so as to release the locking to circuit breaker cart, breaks
Road device handcart can retreat to testing position and complete follow-up work.
Vacuum interrupter is the core of vacuum circuit breaker.In order to realize disjunction and the arc extinguishing of electric current, vacuum interrupter
Interior pressure is generally not more than 10-2Pa.Therefore, vacuum degree is to determine one of the principal element of break performance of vacuum interrupter,
The reduction of vacuum degree will directly affect the connecting-disconnecting function of vacuum circuit breaker, will lead to when serious its cut-off it is entirely ineffective.Therefore, exist
There is an urgent need to measure and record the vacuum degree of vacuum interrupter in operation for practical application area.
In practical application, the test method of vacuum level of vacuum arc-quenching chamber mainly include the following types:
(1) industrial frequency withstand voltage method: the test for non-dismount arc-extinguishing chamber, the vacuum level of vacuum arc-quenching chamber detection of vacuum circuit breaker
It is live generally to be sent out using industrial frequency withstand voltage, two contact of vacuum circuit breaker is exactly pulled to specified open away from the work being gradually increased between contact
Frequency voltage is if being resistant to voltage 1min, i.e., otherwise as unqualified it is believed that vacuum degree is qualified to specified value.Practice have shown that adopting
It is a kind of simple and effective method with the vacuum degree that industrial frequency withstand voltage method detects serious vacuum interrupter inferior, but in critical
The arc-chutes of state are then helpless.For the vacuum interrupter that two or more are used in series, industrial frequency withstand voltage method is uncomfortable
For checking the vacuum degree of series connection arc-chutes simultaneously.In addition, big, heavy for the pressure-resistant power frequency testing transformer volume tested,
It is inconvenient, and price, it is not that each power transmission and transformation unit has the ability to configure.
(2) observation: due to being frequently accompanied by electric arc color change and inside when vacuum interrupter internal vacuum reduces
Part oxidation, so can be with routine observation to the vacuum interrupter of glass shell.The parts surfaces such as the shielding case inside when normal
Color should be very bright, and what is issued in drop-out current is blue arc light；When vacuum degree seriously reduces, internal color will become
Must be gloomy, it will be seen that kermesinus arc light in drop-out current.This method is only applicable to glass shell vacuum interrupter once in a while
Qualitative examination.
(3) red as fire meter method: being detected using spark leak detector, and when detection moves spark leak detector along arc extinguishing chamber surface,
There is different luminous situations in the lower inside of its high-frequency electric field effect.The vacuum degree of vacuum interrupter is identified according to luminous color.
This method is easy to operate, but can only qualitatively be judged, is suitable for glass tube vacuum arc-chutes, and be easy by human factor
It influences.
(4) getter color change determines: glass inside pipe wall evapotranspiring one layer of getter in vacuum interrupter manufacture.It should
On the one hand getter can maintain high vacuum with residual gas in adsorption tube, another aspect getter itself can indicate vacuum degree.
Maintenance personnel can with the naked eye judge vacuum degree quality according to getter color change.Likewise, this method is only applicable to pair
The qualitative examination of glass shell vacuum interrupter once in a while.
(5) magnetic control discharge method: for vacuum interrupter in the fabrication process, vacuum pressure is usually to use electric vacuum
Meter is to measure.After the completion of arc-chutes manufacture, the vacuum ionization ga(u)ge having thereon, which is regulated, to be just removed, and hereafter arc extinguishing is indoor true
Reciprocal of duty cycle commonly uses the magnetic control discharge method containing cylindrical magnet exciting coil to measure.Magnetic control discharge method is measurement finished product arc-chutes vacuum degree
One of better method and the currently the only preferable method for quantitative measuring of repeatability.Its principle is by the touching of vacuum interrupter
Head pulls open certain distance, applies a pulse voltage between contact, to generate a strong electrical field therebetween, while in arc extinguishing chamber contact
Between apply an axial high-intensity magnetic field again.The indoor electronics of arc extinguishing is spinned movement under the collective effect in strong electrical field and magnetic field at this time,
And collide ionization with residual gas molecule in arc-chutes, the ion for ionizing out forms ionic current in electric field.This from
Electron current is approximate with residual gas density directly proportional.Therefore by measurement ionic current, it can know the indoor vacuum degree of arc extinguishing.
But magnetic control discharge method cannot achieve on-line monitoring.
Other than above-mentioned common methods, for the detection of vacuum level of vacuum arc-quenching chamber, also there are as below methods in the prior art:
High-frequency discharge method, high-frequency current method, coupled capacitor method, electro-optical conversion method, ray method etc..However these existing vacuum extinctions
Vacuum measurement method in room is that service personnel is needed just to operate in maintenance, all cannot achieve the online prison of automation
It surveys.In the prior art, it also has tried to that pressure sensor device is arranged in vacuum extinction room, still, if pressure sensor device makes
Signal is transmitted with wired mode, signal wire passes through the very easy air-tightness for influencing vacuum interrupter when vacuum interrupter, if pressure
Force sensor uses wireless monitor (contactless) mode, and can there is a problem of what measurement was not allowed.
In addition, if major loop temperature is excessively high, can accelerate to heat and aoxidize, lead to such as fingertip in the breaker course of work
Phenomena such as thawing falls off, contact is burnt, insulation failure even causes burning, explosion when serious.In the prior art to open circuit
The monitoring mode of device contact arm single can only all measure temperature, can not link with specific size of current, and measurement is caused to be tied
Fruit only has referential, directly can not accurately be analyzed using measurement result.
Summary of the invention
The purpose of the present invention is to provide a kind of intelligent breaker handcarts, to solve high pressure vacuum open circuit in the prior art
The vacuum-degree monitoring of vacuum interrupter is complicated for operation in device, is difficult to real-time monitoring, and the monitoring mode of contact arm is single, temperature measurement
As a result the problem of can not linking with size of current, realization is simple, accurately monitors on-line to the vacuum degree of vacuum interrupter,
And stable acquisition circuit breaker contact arm Real-time Monitoring Data, convenient for the purpose for handling temperature and current information linkage.
The present invention is achieved through the following technical solutions:
A kind of intelligent breaker handcart, including the upper contact arm being connected with upper wire outlet seat, the lower touching being connected with lower wire outlet seat
Arm connects vacuum interrupter between the upper wire outlet seat and lower wire outlet seat, further includes monitoring system, contact arm measure annular device；
The monitoring system includes Vacuum Balance chamber, optical fiber, by flat between the Vacuum Balance chamber and vacuum interrupter
Weighing apparatus metal film separates, and one end of the optical fiber is located at that Vacuum Balance is intracavitary, the other end is connected with monitoring unit, the monitoring unit
The light intensity transmitted for monitoring optical fiber；
The contact arm measure annular device is set on contact arm and/or lower contact arm, including induced electricity ring, current detecting
Ring, the induced electricity ring, current detecting ring are facing each other, and central control system is connected between induced electricity ring and current detecting ring, is also wrapped
It includes and is fixed on central control system towards induced electricity ring or the temperature sensor of current detecting ring center direction side；The middle control
System includes power module, wireless communication module, processing module；The power module is used to receive the electric energy of induced electricity ring generation
And it powers to wireless communication module, processing module, temperature sensor；The input terminal and current detecting ring, temperature of the processing module
It spends sensor to be connected, the output end of the processing module is connected with wireless communication module.
For vacuum interrupter in high-pressure vacuum breaker in the prior art vacuum-degree monitoring it is complicated for operation, be difficult in real time
The problem of monitoring, and the monitoring mode of contact arm is single, and temperature measurement result can not link with size of current, the present invention proposes one kind
Intelligent breaker handcart, monitoring system are used to monitor the vacuum degree of vacuum interrupter, and contact arm measure annular device is for monitoring
The electric current and temperature information of contact arm.
The monitoring system includes Vacuum Balance chamber, is budget metals film, light between Vacuum Balance chamber and vacuum interrupter
Fine one end is located at that Vacuum Balance is intracavitary, the other end is connected with monitoring unit, and the monitoring unit is used to monitor what optical fiber transmitted
Light intensity, therefore when vacuum degree keeps stablizing in vacuum interrupter, budget metals film remains stationary, and it is single to reach monitoring by optical fiber
The light intensity of member remains unchanged, and can judge that vacuum degree is good in vacuum extinction room.When vacuum interrupter leakage, vacuum degree reduce
When, budget metals both sides differential pressure of membrane changes, and budget metals film generates deformation under differential pressure action, necessarily sends out the reflection of light
Changing then is changed by the light intensity that optical fiber reaches monitoring unit at this time, can judge that vacuum interrupter may be revealed,
Monitoring unit can sound an alarm prompt staff and carry out inspection confirmation.The monitoring system structure of the application is simple, by flat
The flexible deformation of metal film, the borrow light intensity of weighing change to realize indirectly to the real-time monitoring of vacuum extinction indoor situations, overcome
Require the problem of staff could check the vacuum degree of vacuum interrupter in periodic inspection in the prior art.
Further, since optical fiber be across Vacuum Balance chamber, will not with vacuum interrupter occur it is any directly contact, therefore compared to show
Having in technology need to avoid in the mode of the inner wall aperture of vacuum interrupter threading transmission signal to vacuum extinction chamber air-tightness
Interference, and the stability of optical fiber short-distance transmission light is high, can guarantee very excellent measurement accuracy.In addition, if true
Light inadequate natural endowment in empty counter balance pocket, it is that Vacuum Balance chamber mentions that light source, which can be also flexibly arranged, in those skilled in the art as needed
For stable light.
The contact arm measure annular device is set on contact arm and/or lower contact arm, induced electricity ring therein, current detecting
Ring is annular in shape, convenient for being directly set on contact arm.Wherein induced electricity ring is for obtaining induced current, and current detecting ring is for real
When monitoring breaker contact arm in size of current, connect central control system between induced electricity ring and current detecting ring, central control system is first
First play connection function so that induced electricity ring connect with current detecting ring it is integral.Central control system is towards induced electricity ring or electric current
The fixed temperature sensor for detecting ring center direction side, is that temperature sensor is directed towards circuit breaker contact arm direction
, and include power module, wireless communication module, processing module in central control system, power module is for receiving induced electricity ring
The induced current of generation is simultaneously stored, these electric energy stored are used to pass to wireless communication module, processing module, temperature
Sensor power supply, enables the holding automatic work that the application is stable, without being additionally provided power supply.The input of processing module
End is connected with current detecting ring, temperature sensor, and the output end of processing module is connected with wireless communication module, therefore current detecting
Ring, temperature sensor institute real-time monitoring electric current, temperature information be first transmitted to processing module and handled, be transmitted to nothing later
Line communication module, is sent out by wireless communication module.The application carries out the transmission of signal by wireless communication module,
The effect of real-time monitoring, protective breaker and switchgear can be realized.The application is solved by contact arm measure annular device
The problem of monitoring mode of circuit breaker contact arm is single in the prior art, and temperature measurement result can not link with size of current, realizes
Stable acquisition circuit breaker contact arm Real-time Monitoring Data, can be by the purpose of temperature and current information linkage processing.
Vacuum extinction outside setting sensing storehouse, the budget metals film, which will sense, is divided into pressure transmission chamber, true inside storehouse
Empty counter balance pocket, the pressure transmission chamber are connected to vacuum interrupter.The sensing storehouse preferably with the shell of vacuum interrupter one at
Type.
The monitoring unit can issue laser, and it is intracavitary that laser is transmitted through the fiber to Vacuum Balance.Monitoring unit passes through
Vacuum Balance is intracavitary and then form stable light source, and optical fiber is simultaneously as transmitting in this programme by laser stable being transferred to for optical fiber
The channel of light source and feedback light, monitoring unit can be with continuous emission excimer lasers, it also may be preferable for discontinuity transmitting laser.
The budget metals film is the aluminium foil that surface coats white paint.Surface coating white paint can be improved surface smoothness, benefit
In the reflection to light, the absorption to light is reduced.
The white paint includes the component of following parts by weight: 45~50 parts of alkyd resin, 4~6 parts of dispersing agent, and defoaming agent
0.2~0.5 part, 10~15 parts of zinc sulphide, 10~15 parts of barium sulfate, 25~30 parts of titanium dioxide, 30~40 parts of solvent.This formula
Middle titanium dioxide is used as auxiliary brightening agent, the paint enabled to as most important brightening agent, zinc sulphide and barium sulfate
Guarantee pure white, the absorption to light is further decreased, to reflect more light.In addition, a large amount of titanium dioxide in this programme
Addition, titanium dioxide always in the form of solia particle exist in white paint, be coated in aluminium foil surface after, aluminium can be conducive to
Foil surface forms diffusing reflection, and under the conditions of diffusing reflection, what budget metals film can be more stable when deformation occurs ensures optical fiber
The light of varying strength is received, thus under the conditions of avoiding budget metals film that mirror-reflection occurs, before and after the deformation of budget metals film
Intensity of illumination changes little situation and occurs at optical fiber.
The side wall of the Vacuum Balance chamber opens up groove, is separated between the groove and Vacuum Balance chamber by Transparent Parts, institute
It states and light source is set in groove.This programme provides the mode of light source for another kind for Vacuum Balance chamber.
Preferably, the Transparent Parts are vacuum glass.Vacuum glass has excellent heat-insulating capability, can be avoided light source hair
It is intracavitary that heat out enters Vacuum Balance.
A kind of on-line monitoring method of high-pressure vacuum breaker vacuum degree, comprising the following steps:
(a) airtight Vacuum Balance chamber is set, make between Vacuum Balance chamber and vacuum interrupter by budget metals film every
It opens；
(b) the intracavitary light intensity of monitoring Vacuum Balance: if the intracavitary light intensity of Vacuum Balance remains unchanged, judge vacuum interrupter
Normally；If the intracavitary light intensity of Vacuum Balance changes, judge that vacuum interrupter is revealed.
If vacuum interrupter leaks, the pressure of Vacuum Balance chamber and vacuum interrupter is uneven, causes budget metals
The reflective light intensity of film deformation, deformation front and back, budget metals film is different, and then can realize whether real-time monitoring arc-chutes vacuum lets out
Leakage.
The intracavitary light intensity of Vacuum Balance is by being inserted into the intracavitary fiber-optic monitoring of Vacuum Balance.Optical fiber has anti-electromagnetism and original
The performance of sub- radiation interference, the mechanical performance that diameter is thin, matter is soft, light-weight；And there is insulation, inductionless electric property and resistance to
Water, high temperature resistant, corrosion resistant chemical property etc., are resistant to the extreme condition of vacuum interrupter.
Light source is provided to Vacuum Balance chamber in monitoring process.The light source is by optical fiber to the intracavitary transmission of Vacuum Balance
Laser.
Further, the induced electricity ring and current detecting ring are coaxial, and all cover outside contact arm；The central control system connection
At the top of induced electricity ring, current detecting ring, the lower surface of central control system, and temperature sensor is arranged in the temperature sensor
It is in contact with circuit breaker contact arm.Induced electricity ring and current detecting ring are coaxial, facilitate ensuring that the two is stable simultaneously and cover on contact arm,
Central control system is connected to the top of induced electricity ring, current detecting ring, and the lower surface of central control system is arranged in temperature sensor, this
Kind structure enables under the gravity of present apparatus entirety, and the temperature sensor above the contact arm of position is naturally stablized with contact arm
Contact.
The induced electricity ring is current transformer.The current detecting ring is Rogowski coil.The processing module is modulus
Converter.
Supporting plate, upper surface setting and the open circuit of the supporting plate are fixed in the bottom end of the induced electricity ring or current detecting ring
The groove that device contact arm bottom matches.The bottom of groove and circuit breaker contact arm matches, to be circuit breaker contact arm by groove
Accommodation groove is provided and holds contact arm measure annular device by supporting plate so that the bottom of circuit breaker contact arm is coated by groove,
Improve the job stability of contact arm measure annular device.
The opposite sides of the supporting plate passes through the hinged grip block of hinge, leads between the grip block and supporting plate outer wall
Cross tension spring connection.When circuit breaker contact arm is placed in groove, the grip block of two sides is pulled inwardly by tension spring, and then grip block
The two sides of circuit breaker contact arm are stuck in, are tightly clamped circuit breaker contact arm from two sides by grip block, so that contact arm measure annular
Stiction between device and contact arm is very big, provides the opposite connective stability between the application and contact arm, avoids the application
Slide displacement is generated easily along the axial direction of contact arm, significantly improves the stability during the application on-line monitoring.The clamping
Several double wedges are arranged in the inner surface of plate.The frictional resistance between grip block and contact arm is improved by double wedge, is further ensured that
The stability in use of the application.
Compared with prior art, the present invention having the following advantages and benefits:
1, a kind of intelligent breaker handcart of the present invention, structure and the operation for monitoring system are extremely simple, pass through balance
The flexible deformation of metal film borrows light intensity variation to realize indirectly to the real-time monitoring of vacuum extinction indoor situations, overcomes
The vacuum degree of vacuum interrupter could be checked in periodic inspection, is wireless real-time by requiring staff in the prior art
The problem of on-line monitoring.
2, a kind of intelligent breaker handcart of the present invention, due to optical fiber be across Vacuum Balance chamber, will not go out with vacuum
Any direct contact occurs for arc chamber, thus compared to the prior art in need to thread transmission signal in the inner wall aperture of vacuum interrupter
Mode, avoid the interference to vacuum extinction chamber air-tightness, and the stability of optical fiber short-distance transmission light is high, can
Guarantee very excellent measurement accuracy.
3, a kind of intelligent breaker handcart of the present invention, the holding automatic work that contact arm measure annular device can be stable,
Without being additionally provided power supply.The input terminal of processing module is connected with current detecting ring, temperature sensor, processing module it is defeated
Outlet is connected with wireless communication module, therefore the electric current of current detecting ring, temperature sensor institute real-time monitoring, temperature information are first
It is transmitted to processing module to be handled, is transmitted to wireless communication module later, be sent out by wireless communication module.Pass through
Wireless communication module carries out the transmission of signal, and the effect of real-time monitoring, protective breaker and switchgear can be realized.Contact arm
The monitoring mode that measure annular device solves circuit breaker contact arm in the prior art is single, and temperature measurement result can not be big with electric current
The problem of small linkage, realizes stable acquisition circuit breaker contact arm Real-time Monitoring Data, and temperature and current information can link
The purpose of processing.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the cross-sectional view of the specific embodiment of the invention；
Fig. 2 is the schematic diagram that system is monitored in the specific embodiment of the invention；
Fig. 3 is the schematic diagram of pressure transmission chamber in the specific embodiment of the invention；
Fig. 4 is the structural schematic diagram of contact arm measure annular device in the specific embodiment of the invention；
Fig. 5 is the side view of contact arm measure annular device in the specific embodiment of the invention；
Fig. 6 is the central control system connection schematic diagram of specific embodiment of the invention contact arm measure annular device；
Fig. 7 is the structural schematic diagram of contact arm measure annular device in another embodiment of the present invention；
Fig. 8 is the partial schematic diagram of supporting plate in another embodiment of the present invention.
Label and corresponding parts title in attached drawing:
1- breaker operation mechanism, 2- vacuum interrupter, 3- sensing storehouse, 31- budget metals film, 32- Vacuum Balance chamber,
33- optical fiber, 34- pressure transmission chamber, 4- monitoring unit, the first groove of 5-, 6- Transparent Parts, 7- light source, 8- pole, 9- insulation are drawn
Bar, 10- contact of breaker, 11- contact arm measure annular device, 111- induced electricity ring, 112- central control system, 113- temperature sensing
Device, 114- current detecting ring, 115- supporting plate, the second groove of 116-, 117- grip block, 118- tension spring, 12- chassis vehicle, 13- vehicle
Frame, the upper wire outlet seat of 14-, the upper contact arm of 15-, the upper Mume flower contact of 16-, wire outlet seat under 17-, contact arm under 18-, Mume flower contact under 19-.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1:
A kind of intelligent breaker handcart, as shown in Figure 1, include the upper contact arm 15 being connected with upper wire outlet seat 14, with it is lower go out
The connected lower contact arm 18 of line seat 17, connects vacuum interrupter 2 between the upper wire outlet seat 14 and lower wire outlet seat 17, further include monitoring
System, contact arm measure annular device 11；
Monitoring system is as shown in Fig. 2, include Vacuum Balance chamber 32, optical fiber 33, the Vacuum Balance chamber 32 and vacuum extinction
It is separated between room 2 by budget metals film 31, one end of the optical fiber 33 is located in Vacuum Balance chamber 32, the other end and monitoring are single
Member 4 is connected, and the monitoring unit 4 is for monitoring the light intensity that optical fiber 33 transmits；
The contact arm measure annular device 11 is set on contact arm 15 and lower contact arm 18, as shown in Fig. 4 and Fig. 6, including
Induced electricity ring 111, current detecting ring 114, the induced electricity ring 111, current detecting ring 114 are facing each other, induced electricity ring 111 with
Central control system 112 is connected between current detecting ring 114, further includes being fixed on central control system 112 towards induced electricity ring 111 or electric current
Detect the temperature sensor 113 of 114 center of circle direction side of ring；The central control system 112 includes power module, wireless telecommunications
Module, processing module；The power module be used for receive induced electricity ring 111 generation electric energy and to wireless communication module, processing
Module, temperature sensor 113 are powered；The input terminal of the processing module is connected with current detecting ring 114, temperature sensor 113,
The output end of the processing module is connected with wireless communication module.
In the present embodiment, setting sensing storehouse 3 on the outside of vacuum interrupter 2, the budget metals film 31 will sense 3 inner part of storehouse
For pressure transmission chamber 34, Vacuum Balance chamber 32, the pressure transmission chamber 34 is connected to vacuum interrupter 2.The monitoring unit 4 can issue sharp
Light, laser are transmitted in Vacuum Balance chamber 32 by optical fiber 33.
Monitoring unit 4 is connect with optical fiber 33, and optical fiber 33 is connect with Vacuum Balance chamber 32, and budget metals film 31 is located at vacuum and goes out
In arc chamber 2, Vacuum Balance chamber 32 is integrated with vacuum interrupter 2.Laser is transferred to by monitoring unit 4 by optical fiber 33
In Vacuum Balance chamber 32, budget metals mould 31 is capable of reflecting light.After the vacuum degree of breaker vacuum arc-chutes 2 leaks,
The pressure of vacuum interrupter 2 is greater than the pressure in Vacuum Balance chamber 32, and the reflection of the deformation and light that cause budget metals film 31 becomes
Change, optical fiber 33 transports light to monitoring unit 4 again, can judge whether vacuum interrupter vacuum leak occurs according to light intensity curve.
Embodiment 2:
As shown in figure 3, the present embodiment and the difference of embodiment 1 are: it is recessed that the side wall of the Vacuum Balance chamber 32 opens up first
Slot 5 is separated between first groove 5 and Vacuum Balance chamber 32 by Transparent Parts 6, and light source 7 is arranged in first groove 5.Institute
Stating Transparent Parts 6 is vacuum glass.
Preferably, budget metals film 31 is the aluminium foil that surface coats white paint.The white paint includes the group of following parts by weight
Point: 45~50 parts of alkyd resin, 4~6 parts of dispersing agent, 0.2~0.5 part of defoaming agent, 10~15 parts of zinc sulphide, barium sulfate 10~15
Part, 25~30 parts of titanium dioxide, 30~40 parts of solvent.
Embodiment 3:
The contact arm measure annular device for vacuum circuit breaker as illustrated in figs. 7 and 8, on the basis of embodiment 1, institute
It states induced electricity ring 111 and current detecting ring 114 is coaxial, and all cover outside upper contact arm 15, lower contact arm 18；The central control system 112
It is connected to the top of induced electricity ring 111, current detecting ring 114, the temperature sensor 113 is arranged under central control system 112
Surface, and temperature sensor 113 is in contact with upper contact arm 15, lower contact arm 18.The induced electricity ring 111 or current detecting ring 114
The fixed supporting plate 115 in bottom end, the upper surface setting of the supporting plate 115 matches with upper contact arm 15,18 bottom of lower contact arm
Second groove 116.The opposite sides of the supporting plate 115 passes through the hinged grip block 117 of hinge, the grip block 117 with hold
It is connected between 115 outer wall of supporting plate by tension spring 118；Several double wedges are arranged in the inner surface of the grip block 117.
Wherein, the induced electricity ring 111 is current transformer；The current detecting ring 114 is Rogowski coil；The processing
Module is analog-digital converter.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of intelligent breaker handcart, including the upper contact arm (15) being connected with upper wire outlet seat (14), with lower wire outlet seat (17)
Connected lower contact arm (18) connects vacuum interrupter (2) between the upper wire outlet seat (14) and lower wire outlet seat (17), and feature exists
In further including monitoring system, contact arm measure annular device (11)；
The monitoring system includes Vacuum Balance chamber (32), optical fiber (33), the Vacuum Balance chamber (32) and vacuum interrupter (2)
Between separated by budget metals film (31), one end of the optical fiber (33) is located at interior Vacuum Balance chamber (32), the other end and prison
It surveys unit (4) to be connected, the monitoring unit (4) is for monitoring the light intensity that optical fiber (33) transmits；
The contact arm measure annular device (11) is set on contact arm (15) and/or lower contact arm (18), including induced electricity ring
(111), current detecting ring (114), the induced electricity ring (111), current detecting ring (114) are facing each other, induced electricity ring (111)
Central control system (112) are connected between current detecting ring (114), further include being fixed on central control system (112) towards induced electricity ring
(111) or the temperature sensor (113) of current detecting ring (114) center of circle direction side；The central control system (112) includes
Power module, wireless communication module, processing module；The power module is used to receive the electric energy of induced electricity ring (111) generation simultaneously
To wireless communication module, processing module, temperature sensor (113) power supply；The input terminal and current detecting ring of the processing module
(114), temperature sensor (113) is connected, and the output end of the processing module is connected with wireless communication module.
2. a kind of intelligent breaker handcart according to claim 1, which is characterized in that the vacuum interrupter (2) is outside
Side setting sensing storehouse (3), the budget metals film (31), which will sense inside storehouse (3), is divided into pressure transmission chamber (34), Vacuum Balance chamber
(32), the pressure transmission chamber (34) is connected to vacuum interrupter (2).
3. a kind of intelligent breaker handcart according to claim 1, which is characterized in that the monitoring unit (4) can
Laser is issued, laser is transmitted in Vacuum Balance chamber (32) by optical fiber (33).
4. a kind of intelligent breaker handcart according to claim 1, which is characterized in that the budget metals film (31) is
The aluminium foil of surface coating white paint.
5. a kind of intelligent breaker handcart according to claim 4, which is characterized in that the white paint includes following weight
The component of number: 45~50 parts of alkyd resin, 4~6 parts of dispersing agent, 0.2~0.5 part of defoaming agent, 10~15 parts of zinc sulphide, sulfuric acid
10~15 parts of barium, 25~30 parts of titanium dioxide, 30~40 parts of solvent.
6. a kind of intelligent breaker handcart according to claim 1, which is characterized in that the Vacuum Balance chamber (32)
Side wall opens up the first groove (5), is separated between first groove (5) and Vacuum Balance chamber (32) by Transparent Parts (6), and described
Light source (7) are set in one groove (5).
7. a kind of intelligent breaker handcart according to claim 1, which is characterized in that the induced electricity ring (111) with
Current detecting ring (114) coaxially, and all cover upper contact arm (15) and/or lower contact arm (18) outside；Central control system (112) connection
At the top of induced electricity ring (111), current detecting ring (114), the temperature sensor (113) is arranged in central control system (112)
Lower surface, and temperature sensor (113) is in contact with upper contact arm (15) and/or lower contact arm (18).
8. a kind of intelligent breaker handcart according to claim 1, which is characterized in that the induced electricity ring (111) is
Current transformer；The current detecting ring (114) is Rogowski coil；The processing module is analog-digital converter.
9. a kind of intelligent breaker handcart according to claim 7, which is characterized in that the induced electricity ring (111) or
The bottom end of current detecting ring (114) is fixed supporting plate (115), upper surface setting and upper contact arm (15) of the supporting plate (115)
And/or the second groove (116) that lower contact arm (18) bottom matches.
10. a kind of intelligent breaker handcart according to claim 9, which is characterized in that the phase of the supporting plate (115)
Two sides are passed through with the hinged grip block of hinge (117), passes through tension spring between the grip block (117) and supporting plate (115) outer wall
(118) it connects；Several double wedges are arranged in the inner surface of the grip block (117).
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| CN201910671838.6A CN110223880B (en) | 2019-07-24 | 2019-07-24 | Intelligent circuit breaker handcart |
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| CN110223880B (en) | 2024-02-13 |
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