CN107863265A - A kind of distribution breaker - Google Patents
A kind of distribution breaker Download PDFInfo
- Publication number
- CN107863265A CN107863265A CN201711147176.XA CN201711147176A CN107863265A CN 107863265 A CN107863265 A CN 107863265A CN 201711147176 A CN201711147176 A CN 201711147176A CN 107863265 A CN107863265 A CN 107863265A
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- China
- Prior art keywords
- motion bar
- breaker
- permanent
- moving contact
- contact
- Prior art date
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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
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- 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
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
Abstract
The invention belongs to power distribution network current switch field, more particularly to a kind of distribution breaker.The breaker of the present invention makes full use of permanent magnetic drive structure to realize the major function of breaker, and then simplify the structure of breaker, reduce equipment component number, reduce complexity, improve the stability of breaker, reduce its manufacturing cost, the position relationship between circuit breaker static contact and moving contact is realized with reference to Electromagnetic Control and circuit control system, the Self Adaptive Control and self-control of the governing factor of combined floodgate/sub-switching operation, when breaker after a variety of causes such as abrasion causes the structure of stable state and governing factor to change between contact in use because can adjust change therewith, still ensure that its is fully functional effectively after ensureing breaker long-term use.
Description
Technical field
The invention belongs to power distribution network current switch field, more particularly to a kind of distribution breaker.
Background technology
The switching mode equipment of breaker control electric current suitable for power distribution network, breaker are controlled by manual operation or machinery
System etc. is acted, and then realizes quick-make or disconnection, and usual breaker is used for the fast shut-off in electric power system fault
Transmission line of electricity so prevent electric network fault scope expand, reduce infringement degree.The agent structure of breaker includes arc-control device, operation
Device and mounting bracket etc., arc-control device are used to eliminate in electric arc caused by closing of power circuit breaker or disconnection moment, prevent open circuit
Device is destroyed by electric arc, and with the development of various arc extinguishing technologies, arc-control device extends various such as vacuum extinction, oil circuit arc extinguishing, pressure
The arc extinguishing such as contracting air blowout, magnetic quenching scheme and equipment, all kinds of different arc-control devices can adapt to various environment in power network
Demand, and effect stability, the safe operation of breaker is ensure that, even so, but the breaker in power network is still all kinds of
A section more weak in power network component and equipment, circuit breaker failure is pith in all kinds of sources of trouble of power network, and it is former to study carefully it
Cause, cause mainly due to the unstability of operating mechanism, because breaker needs enough connecting-disconnecting functions, and in beginning process
Middle impulsive force is big, and speed is fast, all has higher requirement to the 26S Proteasome Structure and Function of operation device, due to the limitation of prior art,
People have to by increasing constitutional detail or ensure its function using the mechanism of complexity, and its cost is the steady of operation device
Qualitative reduction, reduce the performance of break-make device.
The content of the invention
The purpose of the invention is, there is provided a kind of distributor breaker with New operation device and control structure,
The breaker and operation device have good operating characteristics, and can be carried out according to the structural change during breaker use
Adaptive correction, ensure that breaker has preferable performance all the time.
To achieve the above object, the invention adopts the following technical scheme that.
A kind of breaker of the present invention, including arc-control device, operation device, feedback device and control device；
The arc-control device includes arc-chutes, and moving contact and static contact in arc-chutes, the static contact are consolidated
Due to arc-control device, the moving contact is mobilizable to pass through moving contact and static contact located at static contact relative position arc-control device
The connection of circuit is realized in contact, and the disconnection of circuit is realized by leaving for moving contact and static contact, and described moving contact one end is from going out
Extend to form dynamic contact bar in arc device；
The operation device includes permanent magnet mechanism, and permanent-magnet structure includes a motion bar, and the upper end of motion bar is fixedly connected
To contact bar, the lower end of motion bar is provided with Step Shaft, and be arranged with internal diameter successively from top to bottom on Step Shaft is adapted with Step Shaft
Positioning sleeve, permanent-magnetic clamp, Step Shaft bottom is rotary with fixing nut so that positioning sleeve, permanent-magnetic clamp are fixed on Step Shaft, activity
The centre of bar is provided with the coil loop for being arranged with tubular, and closing coil and switching winding, coil loop are wound with successively in coil loop
Internal diameter be more than permanent-magnetic clamp external diameter, the positioning sleeve and permanent-magnetic clamp can insert in the inner chamber of coil loop with motion bar, line
Ring is outside to be provided with containment vessel, and containment vessel is provided with the duct moved for motion bar and permanent-magnetic clamp；Also set on the containment vessel
Limited location plate, limiting plate below the permanent-magnetic clamp with prevent positioning sleeve, permanent-magnetic clamp and motion bar from coil loop it is completely out；
The feedback device includes displacement transducer, and institute's displacement sensors are used to detect motion bar along its length
The change in displacement of (i.e. the motion bar direction of motion), institute's displacement sensors detection motion bar position signalling are simultaneously converted into pulse
Signal；Feedback device also includes being used for the drive signal acquisition module for sampling coil drive signal, the drive signal
The signal of acquisition module collection includes driving voltage/current signal of separating brake/closing coil；
The control device includes, DSP module, power module, energy-storage module；
The DSP module comprises at least processor, comparator, encoder pulse passage, AD conversion unit；The processing
The logical relation for corresponding to or converting between the Various types of data in combined floodgate/sub-switching operation is included in device unit；The comparator includes
Multigroup full comparing unit；
The power module includes being used for the dc source for providing direct current for each part such as DSP module, signal sampling；
The energy-storage module is used for divide, closing operation provides the energy, including the energy storage electricity composed in parallel by multiple electric capacity
Appearance group, the rectifier bridge between energy capacitance set and AC power, connect the drive of energy capacitance set and combined floodgate/switching winding
Dynamic circuit.
In making process, the processor unit in the DSP module sends switching signal according to control program and controlled
Energy-storage module is passed through maximum forward current value through overdrive circuit to closing coil, and the permanent-magnetic clamp by electromagnetic attraction is mobile and drives work
Lever and moving contact carry out closing operation, and (distance is by the displacement in feedback device for the spacing between moving contact and static contact
Sensor detects to obtain) narrow down to up to default deceleration startup threshold values, processor unit interrupts switching signal and sends deceleration letter
Number, maximum forward current value is passed through in switching winding makes moving contact slow down until moving contact is contacted with static contact or its spacing reaches one
Individual less combined floodgate Termination Threshold, processor send holding signal, be passed through in closing coil maximum forward current value make moving contact with
Through keeping maximum pressure between lifting one's head to suppress bounce of closing a floodgate, signal is kept to continue to feed motion to terminate.
During separating brake, the processor unit in the DSP module sends sub-gate signal, energy storage electricity according to control program
Hold and maximum forward current value is passed through into switching winding through drive circuit, permanent magnet is moved down by repulsive force effect, and drives work
Lever and moving contact movement carry out sub-switching operation, when moving contact through the distance between lifting one's head with reaching or close to default arc extinguishing
Threshold values, processor terminal sub-gate signal simultaneously send approaching signal, and maximum forward current value is passed through in closing coil until motion bar moves
Move maximum open position and stop approaching signal.
The threshold values used in the combined floodgate/sub-switching operation passes through experiment tune under the premise of preserving certain allowance according to operating mechanism
Examination obtains, and the threshold values at least ensures that the feasibility of combined floodgate/lock operation, i.e., to make moving contact and static contact energy in closing operation
Enough effectively contacts, reach arc extinguishing safe distance (referring to the distance that separating brake electric arc extinguishes completely) in sub-switching operation；
The feedback device periodically to physical location/motion state of motion bar in the implementation procedure of combined floodgate/sub-switching operation,
The parameters such as current/voltage/duration in switch closing and switch opening operation under corresponding state are recorded and preserved, and are passed
It is handed to and new threshold values data is translated into after processor unit is analyzed and are preserved instead of existing threshold values data,
Using new threshold values data until updating again in combined floodgate/sub-switching operation next time.
More preferably, the energy-storage module also includes being located between AC power and energy capacitance set, and is connected with rectifier bridge
Thermistor.Thermistor can realize overtemperature protection in energy-storage module discharge and recharge moment, prevent energy-storage module from damaging.
More preferably, institute's displacement sensors are grating displacement sensor, the grating displacement sensor speed >=410m/s,
Resolution ratio >=1.5 μm.During combined floodgate/sub-switching operation, relative displacement between contact is smaller, relative velocity is higher, makes
It can ensure that feedback device can accurately and effectively collect information needed with grating displacement sensor.
More preferably, the drive signal acquisition module also includes in-phase proportion amplifier, for amplifying from processor
Gather signal.Because the collection signal from processor is weaker, and strong electric field during breaker real work around it be present
Magnetic field and Current Voltage, to avoid the collection signal sent from processor from being disturbed and then influenceing systemic-function, in processor
And set between drive signal acquisition module and lead to proportional amplifier to amplify collection signal.
Its advantage is：The breaker of the present invention makes full use of permanent magnetic drive structure to realize the main work(of breaker
Can, and then simplify the structure of breaker, equipment component number is reduced, reduces complexity, improves the stability of breaker, is reduced
Its manufacturing cost, the position realized with reference to Electromagnetic Control and circuit control system between circuit breaker static contact and moving contact are closed
It is, the Self Adaptive Control and self-control of the governing factor of combined floodgate/sub-switching operation, when breaker is in use because touch
Between head a variety of causes such as abrasion cause stable state structure and governing factor change after can adjust change therewith, ensure to break
Still ensure that its is fully functional effectively after the device long-term use of road.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of breaker of the present invention；
Fig. 2 is the control process schematic diagram of breaker switching-on operation of the present invention；
Fig. 3 is the control process schematic diagram of breaker open operation operation of the present invention.
Its reference includes：
Housing 11；Static contact 12；Upper terminals 12a；Moving contact 13；Lower terminals 13a；Motion bar 14；Step Shaft 14a；
Positioning sleeve 15；Permanent-magnetic clamp 16；First permanent-magnetic clamp 16a；Second permanent-magnetic clamp 16b；Coil loop 17；Containment vessel 18；Limiting plate 19.
Embodiment
The invention is elaborated below in conjunction with specific embodiment.
As shown in fig. 1, a kind of breaker of the invention, including arc-control device, operation device, feedback device and control
Device；
The arc-control device includes arc-chutes, and moving contact 13 and static contact 12 in arc-chutes, the stationary contact
First 12 are fixed on arc-control device, and the moving contact 13 is mobilizable to be touched located at the relative position arc-control device of static contact 12 by dynamic
The connection of circuit is realized in first 13 contacts with static contact 12, and the disconnected of circuit is realized by moving contact 13 and leaving for static contact 12
Open, described one end of moving contact 13 extends to form dynamic contact bar from arc-control device；It is former according to arc extinguishing in actual application
Reason is different, and the structure of arc-chutes and dynamic/static contact 12 simultaneously differs, and is that simplified breaker structure employs very in the present embodiment
Empty arc-control device, including the housing 11 of vacuum, the both ends of housing 11 are provided with blind end, and stationary contact is fixed with blind end above
First 12, one end of static contact 12 is stretched out to form upper terminals 12a from blind end, and the lower section of static contact 12 is provided with preset relative moving and touched
First 13, moving contact 13, which is extended downwardly and stretched out from the hole of lower blind end, forms lower terminals 13a, and moving contact 13 is with lower wiring
End 13a slides the contact and disconnection realized between contact in hole together, and moving contact 13 is connected with bellows to ensure closure,
Dynamic/surrounding of static contact 12 is additionally provided with radome, can reduce moving contact 13 in combined floodgate/sub-switching operation mistake using vacuum arc-extinguishing device
Displacement in journey, it is easy to reduce breaker volume, so that accurate control preferably can be realized using Electronic Control.
The lower terminals 13a being connected with moving contact 13 extends downwardly from being connected with the motion bar 14 in permanent magnet mechanism afterwards, reason
From, the moving contact 13, lower terminals 13a, motion bar 14 may be configured as integrative-structure, for ease of arc-control device more
Change, avoid permanent magnet mechanism from producing the structure that laterally disturbance destroys arc-control device, the motion bar 14 in the present invention is independently arranged, and living
Terminals 13a (moving contact 13) under dynamic being connected to；Motion bar 14 is strip bar structure, is coordinated for ease of processing, the present embodiment
In use columned motion bar 14, the lower end diameter of motion bar 14 reduces to form Step Shaft 14a structures, Step Shaft 14a
On be arranged with positioning sleeve 15, the permanent-magnetic clamp that internal diameter and Step Shaft 14a are adapted successively from top to bottom, positioning sleeve 15 be used to adjust and
The position of section on permanent-magnetic clamp is limited, Step Shaft 14a bottoms are rotary with fixing nut so that positioning sleeve 15, permanent-magnetic clamp are fixed on into platform
On rank axle 14a, the centre of motion bar 14 is provided with the coil loop 17 for being arranged with tubular, and closing coil is wound with successively in coil loop 17
And switching winding, permanent-magnetic clamp includes the less first permanent-magnetic clamp 16a of diameter and the second permanent-magnetic clamp in special the present embodiment
16b, the internal diameter of coil loop 17 are more than the external diameter that the first permanent-magnetic clamp 16a external diameters are less than the second permanent-magnetic clamp 16b, the He of positioning sleeve 15
First permanent-magnetic clamp 16a can be inserted in the inner chamber of coil loop 17 with motion bar 14, and the outer outside of coil loop 17 is provided with containment vessel
18, containment vessel 18 is provided with the duct moved for motion bar 14 and permanent-magnetic clamp；Limiting plate 19 is additionally provided with the containment vessel 18, is limited
Position plate 19 below the permanent-magnetic clamp with prevent positioning sleeve 15, permanent-magnetic clamp and motion bar 14 from coil loop 17 it is completely out；
The feedback device of the present invention includes displacement transducer, and institute's displacement sensors are used to detect motion bar 14 along its length
The change in displacement in direction (i.e. the direction of motion of motion bar 14), due to actual use combined floodgate/sub-switching operation during, moving contact 13 and
The only quick acting in very short time and infinitesimal displacement of motion bar 14, therefore can utilize and sense speed speed >=410m/s, point
The grating displacement sensor of resolution >=1.5 μm meets to use required displacement information to obtain.Displacement transducer, which needs to detect, lives
The position of lever 14 and velocity variations information, the displacement transducer of various grades, therefore this reality are met because in the market is existing
Apply in example and repeat no more, while according to being actually needed, the installation site of displacement transducer is also different, is more preferably mounted in
The side of motion bar 14, the induction zone of displacement transducer is separately positioned under limiting plate 19 and motion bar 14 in the present embodiment
End.
Institute's displacement sensors detection position signalling of motion bar 14 is simultaneously converted into pulse signal；Feedback device also includes
For the drive signal acquisition module sampled to coil drive signal, the signal bag of the drive signal acquisition module collection
Include driving voltage/current signal of separating brake/closing coil；Combined floodgate/sub-switching operation process is obtained by drive signal acquisition module
Driving current in middle combined floodgate/switching winding changes with time information, and processor is by it between the motion state of motion bar
Relation pair should.
Breaker is during long-term use, the strong collision friction of high speed and arc burning, high temperature evaporation between contact
It will cause on contact face material loss and mobile etc. reason, and cause the spacing between two contacts to change, for this problem,
Some products during closing operation to moving contact 13 by persistently pressing to ensure its steady contact, though this method can guarantee that
It is steadily contacted but further can strengthens the wear phenomenon of head and shoulder, accelerate the damage of breaker, preferably scheme is in the behaviour that closes a floodgate
The moving contact 13 of motion bar 14/ is set to obtain larger closing speed as initial stage to reduce closing time, when reducing total existing for electric arc
Between and scale, moving contact 13 is slowed down before closing operation terminates and be adjacent to static contact 12 to avoid strong friction, while to avoid
Closing operation terminates to beat between rear contact, terminates after-applied confining force at it until stable, another aspect of closing a floodgate, is carrying out separating brake
In operating process, should apply stronger separating brake power to moving contact 13 makes it obtain faster opening velocity to reduce electric arc generation
Time and scale, should be to dynamic in the sub-switching operation later stage while to avoid the high-speed mobile of motion bar 14 from producing impact to equipment
The motion bar 14 of contact 13/, which carries out deceleration, makes it obtain buffering until stopping movement, and to realize above-mentioned control program, of the invention is disconnected
Road device also includes control device, and the control device includes, DSP module, power module, energy-storage module；
The DSP module comprises at least processor, comparator, encoder pulse passage, AD conversion unit；The processing
The logical relation for corresponding to or converting between the Various types of data in combined floodgate/sub-switching operation is included in device unit；The comparator includes
Multigroup full comparing unit；Going out head and shoulder to occur after wearing, the displacement information of the motion bar 14 of moving contact 13/ changes, therefore with
Corresponding control electric current action time point and the duration all should respective change, pass through comparative analysis and obtain actual close
The displacement information of motion bar and the status information of driving current during lock/sub-switching operation process stabilization, analyze and contrast by processor
It is modified afterwards and as the foundation of next combined floodgate/sub-switching operation.
The power module includes being used for the dc source for providing direct current for each part such as DSP module, signal sampling；Should
DC source should include a variety of different output voltage grades, and (voltage for corresponding to the direct current signals needed for each part such as processor is big
It is small), with reference to breaker use environment, device structure, the direct current of the present embodiment can be simplified using the source of stable pressure of AC-DC
Accumulator structure is also included in power supply.
The energy-storage module is used for divide, closing operation provides the energy, including the energy storage electricity composed in parallel by multiple electric capacity
Appearance group, the rectifier bridge between energy capacitance set and AC power, connect the drive of energy capacitance set and combined floodgate/switching winding
Dynamic circuit；
In making process, the processor unit in the DSP module sends switching signal according to control program and controlled
Energy-storage module is passed through maximum forward current value through overdrive circuit to closing coil, and the permanent-magnetic clamp by electromagnetic attraction is mobile and drives work
Lever 14 and moving contact 13 carry out closing operation, and (distance is by feedback device for the spacing between moving contact 13 and static contact 12
In displacement transducer detect to obtain) narrow down to up to default deceleration startup threshold values, it is concurrent that processor unit interrupts switching signal
Go out reduce-speed sign, maximum forward current value is passed through in switching winding makes moving contact 13 slow down until moving contact 13 contacts with static contact 12
Or its spacing reaches a less combined floodgate Termination Threshold, processor sends holding signal, maximum forward is passed through in closing coil
Electric current makes moving contact 13 and through keeping maximum pressure between lifting one's head to suppress bounce of closing a floodgate, and keeps signal to continue to feed motion knot
Beam；During separating brake, the processor unit in the DSP module sends sub-gate signal, storage capacitor warp according to control program
Drive circuit is passed through maximum forward current value into switching winding, and permanent magnet is moved down by repulsive force effect, and drives motion bar
14 and the movement of moving contact 13 carry out sub-switching operation, when moving contact 13 through the distance between lifting one's head with reaching or being gone out close to presetting
Arc threshold values, processor terminal sub-gate signal simultaneously send approaching signal, and maximum forward current value is passed through in closing coil until motion bar
The maximum open position of 14 movements simultaneously stops approaching signal；
The threshold values used in the combined floodgate/sub-switching operation passes through experiment tune under the premise of preserving certain allowance according to operating mechanism
Examination obtains, and the threshold values at least ensures that the feasibility of combined floodgate/lock operation, even if moving contact 13 and static contact 12 are in closing operation
Effectively contact, reaches arc extinguishing safe distance (referring to the distance that separating brake electric arc extinguishes completely) in sub-switching operation；
The action of closing operation and sub-switching operation based on above-mentioned prosecutor case can be used shown in Fig. 2, Fig. 3.Filled in above-mentioned control
On the basis of putting, in order to solve the change for combined floodgate/separating brake control performance that breaker abrasion is brought, present invention uses one kind to close
Ring control program, feedback device is periodically to physical location/motion shape of motion bar 14 in the implementation procedure of combined floodgate/sub-switching operation
The parameters such as current/voltage/duration in switch closing and switch opening operation under state, corresponding state are recorded and preserved, and will
It, which is transferred to, is translated into new threshold values data and replaces existing threshold values data to carry out after processor unit is analyzed
Preserve, using new threshold values data until updating again in combined floodgate/sub-switching operation next time.
More preferably, the energy-storage module also includes being located between AC power and energy capacitance set, and is connected with rectifier bridge
Thermistor.Thermistor can realize overtemperature protection in energy-storage module discharge and recharge moment, prevent that energy-storage module is strong by moment
Circuit damage.
Claims (8)
1. a kind of distribution breaker, including arc-control device, operation device, it is characterised in that also including feedback device and control
Device processed；
The arc-control device includes arc-chutes, and moving contact and static contact in arc-chutes, the static contact are fixed on
Arc-control device, the moving contact is mobilizable to pass through contact of the moving contact with static contact located at static contact relative position arc-control device
The connection of circuit is realized, the disconnection of circuit is realized by leaving for moving contact and static contact, described moving contact one end is from interrupter cartridge
Extend to form dynamic contact bar in putting；
The operation device includes permanent magnet mechanism, and permanent-magnet structure includes a motion bar, and the upper end of motion bar, which is fixedly attached to, to be connect
Feeler lever, the lower end of motion bar are provided with Step Shaft, are arranged with internal diameter on Step Shaft successively from top to bottom and determine with what Step Shaft was adapted
Position set, permanent-magnetic clamp, Step Shaft bottom are rotary with fixing nut so that positioning sleeve, permanent-magnetic clamp are fixed on Step Shaft, motion bar
Centre, which is provided with, is arranged with the coil loop of tubular, is wound with closing coil and switching winding in coil loop successively, coil loop it is interior
Footpath is more than permanent-magnetic clamp external diameter, and the positioning sleeve and permanent-magnetic clamp can insert in the inner chamber of coil loop with motion bar, coil loop
Outside is provided with containment vessel, and containment vessel is provided with the duct moved for motion bar and permanent-magnetic clamp；Limit is additionally provided with the containment vessel
Position plate, limiting plate below the permanent-magnetic clamp with prevent positioning sleeve, permanent-magnetic clamp and motion bar from coil loop it is completely out；
The feedback device includes displacement transducer, and institute's displacement sensors are (i.e. living along its length for detecting motion bar
The lever direction of motion) change in displacement, institute displacement sensors detection motion bar position signalling is simultaneously converted into pulse signal；
Feedback device also includes being used for the drive signal acquisition module for sampling coil drive signal, and the drive signal gathers mould
The signal of block collection includes driving voltage/current signal of separating brake/closing coil；
The control device includes, DSP module, power module, energy-storage module；
The DSP module comprises at least processor, comparator, encoder pulse passage, AD conversion unit；The processor list
The logical relation for corresponding to or converting between the Various types of data in combined floodgate/sub-switching operation is included in member；The comparator includes multigroup
Full comparing unit；
The power module includes being used for the dc source for providing direct current for each part such as DSP module, signal sampling；
The energy-storage module is used for divide, closing operation provides the energy, including the energy capacitance set composed in parallel by multiple electric capacity,
Rectifier bridge between energy capacitance set and AC power, connect the driving electricity of energy capacitance set and combined floodgate/switching winding
Road.
2. a kind of distribution breaker according to claim 1, it is characterised in that in making process, in the DSP module
Processor unit switching signal is sent according to control program and controls energy-storage module to be passed through through overdrive circuit to closing coil
Maximum forward current value, the permanent-magnetic clamp by electromagnetic attraction is mobile and drives motion bar and moving contact to carry out closing operation, in moving contact
Spacing (distance is detected to obtain by the displacement transducer in feedback device) between static contact is narrowed down to up to default deceleration
Startup threshold values, processor unit interrupt switching signal and send reduce-speed sign, and being passed through maximum forward current value in switching winding makes
Contact slows down until moving contact is contacted with static contact or its spacing reaches a less combined floodgate Termination Threshold, and processor sends guarantor
Signal is held, maximum forward current value is passed through in closing coil to be made moving contact and jumped through keeping maximum pressure between lifting one's head to suppress to close a floodgate
It is dynamic, keep signal to continue to feed motion to terminate.
3. a kind of distribution breaker according to claim 1, it is characterised in that during separating brake, in the DSP module
Processor unit sub-gate signal is sent according to control program, storage capacitor be passed through through drive circuit into switching winding it is maximum just
To electric current, permanent magnet is moved down by repulsive force effect, and drives motion bar and moving contact to move and carry out sub-switching operation, when dynamic
For contact with reaching or close to default arc extinguishing threshold values through the distance between lifting one's head, processor terminal sub-gate signal simultaneously sends landing letter
Number, maximum forward current value is passed through in closing coil until motion bar moves maximum open position and stops approaching signal.
4. a kind of distribution breaker according to Claims 2 or 3, it is characterised in that used in the combined floodgate/sub-switching operation
Threshold values preserved according to operating mechanism and obtained by experimental debugging under the premise of certain allowance, the threshold values at least ensures that combined floodgate/lock
The feasibility of operation, even if moving contact effectively contacts with static contact in closing operation, arc extinguishing safety is reached in sub-switching operation
Distance (referring to the distance that separating brake electric arc extinguishes completely).
A kind of 5. distribution breaker according to claim 4, it is characterised in that the feedback device periodically to close a floodgate/point
The electricity in switch closing and switch opening operation in the implementation procedure of lock operation under physical location/motion state of motion bar, corresponding state
The parameters such as stream/voltage/duration are recorded and preserved, and are passed to processor unit and are analyzed its turn
Turn to new threshold values data and preserved instead of existing threshold values data, used newly in combined floodgate/sub-switching operation next time
Threshold values data until update again.
6. a kind of distribution breaker according to claim 1, it is characterised in that the energy-storage module is also included located at exchange
Between power supply and energy capacitance set, and the thermistor connected with rectifier bridge.
7. a kind of distribution breaker according to claim 1, it is characterised in that institute's displacement sensors pass for pattern displacement
Sensor, the grating displacement sensor speed >=410m/s, resolution ratio >=1.5mm.
8. a kind of distribution breaker according to claim 1, it is characterised in that the drive signal acquisition module also includes
In-phase proportion amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147176.XA CN107863265A (en) | 2017-11-17 | 2017-11-17 | A kind of distribution breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147176.XA CN107863265A (en) | 2017-11-17 | 2017-11-17 | A kind of distribution breaker |
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| CN107863265A true CN107863265A (en) | 2018-03-30 |
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| CN201711147176.XA Pending CN107863265A (en) | 2017-11-17 | 2017-11-17 | A kind of distribution breaker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293011A (en) * | 2020-03-27 | 2020-06-16 | 广西华超电气有限公司 | Intelligent sensing moving contact |
| CN113284769A (en) * | 2021-02-05 | 2021-08-20 | 安徽一天电气技术股份有限公司 | Circuit breaking mechanism and circuit breaker applying same |
| CN111293011B (en) * | 2020-03-27 | 2024-05-03 | 广西华超电气有限公司 | Intelligent sensing moving contact |
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| WO2003056591A1 (en) * | 2001-05-03 | 2003-07-10 | Holec Holland N.V. | Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker |
| CN101777457A (en) * | 2010-02-03 | 2010-07-14 | 中国科学技术大学 | Operation mechanism of breaker |
| CN201655711U (en) * | 2010-05-14 | 2010-11-24 | 中国科学技术大学 | Permanent magnetic operating mechanism of breaker |
| CN203367136U (en) * | 2013-05-23 | 2013-12-25 | 南京南自西电电气有限责任公司 | Controller with permanent-magnet mechanism |
| CN106024500A (en) * | 2016-06-24 | 2016-10-12 | 安徽布雷克电气技术有限公司 | Adaptive smart synchronous high-speed switching device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111293011A (en) * | 2020-03-27 | 2020-06-16 | 广西华超电气有限公司 | Intelligent sensing moving contact |
| CN111293011B (en) * | 2020-03-27 | 2024-05-03 | 广西华超电气有限公司 | Intelligent sensing moving contact |
| CN113284769A (en) * | 2021-02-05 | 2021-08-20 | 安徽一天电气技术股份有限公司 | Circuit breaking mechanism and circuit breaker applying same |
| CN113284769B (en) * | 2021-02-05 | 2022-02-25 | 安徽一天电气技术股份有限公司 | Circuit breaking mechanism and circuit breaker applying same |
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Application publication date: 20180330 |