CN105513844B - Based on fault current energy and the quick electromagnetic tensile machine of change rate and its application - Google Patents
Based on fault current energy and the quick electromagnetic tensile machine of change rate and its application Download PDFInfo
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- CN105513844B CN105513844B CN201510966125.4A CN201510966125A CN105513844B CN 105513844 B CN105513844 B CN 105513844B CN 201510966125 A CN201510966125 A CN 201510966125A CN 105513844 B CN105513844 B CN 105513844B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a kind of based on fault current energy and the quick electromagnetic tensile machine of change rate and its application.Current excitation solenoid coil, magnetizer, linkage, yoke including main circuit, it is characterised in that：The magnetizer is built in that the current excitation solenoid coil inside center is on the upper side or place on the lower side, and one end of the magnetizer and one end of the linkage are affixed, and the yoke envelopes the current excitation solenoid coil.When fault current energy or sufficiently large climbing, the present invention attracts the pulling force that magnetizer produces to pull magnetizer towards helical tube hub rapidly using main circuit current excitation solenoid coil, magnetizer drives linkage action, fault current energy is made full use of to realize the function of opening and closing with change rate, without adding additional control system, present invention can apply in the various electric appliances with switch contact system.
Description
Technical field
The invention belongs to technical field of electric appliances, and in particular to a kind of quick electromagnetic based on fault current energy and change rate
Tensile machine and its application.
Background technology
It is electric system with automatic control system reliability service most to larger fault current or short circuit current flow protection control
Important leverage, protection system need to drive the quick disjunction circuit of electrical contact system, quick-make limit by quick operating mechanism
Current circuit is switched fast power supply buses circuit,《Low-voltage electrical apparatus》Chen Degui " the control and protections that 9th periodical in 2008 is stepped on
The progress of a device for switching " text describes the latest developments of intelligent control and protection switch electric appliance, in the phase the 90's of last century
Between, Schneider company releases Integral Series Intelligent control and protective switching devices, and the country also develops KB0 series, according to
By impact electromagnet as quick operating mechanism, there are many document introductions using capacitive energy storage discharge type electricity in high-voltage electrical appliances field
Magnetic vortex repulsive force mechanism as switch quick operating mechanism, but these schemes be required for additional power supply provide needed for energy and
Change rate, and the control system to match is needed, there are the integrity problem of protection.
Based on this, in July, 2012 Miao Xi benevolence, Bao Guanghai, Zhang Peiming et al. propose to be based on fault current energy and change rate
Quick electromagnetic repulsive force mechanism and its apply this conception, and apply for patent of invention, obtain license, this conceives successfully to solve
Described in prior document using the quick operating mechanism of capacitive energy storage discharge type electromagnetic eddy repulsive force mechanism as switch,
Energy and change rate needed for additional power supply offer are provided, and need the control system to match, there are reliability of protection etc.
A series of problems.But it also fails to take into full account and effectively solves the problems, such as follows：Quick actuating machine based on electromagnetic eddy repulsion
Driving coil and actuating copper dish inherent structure in structure, 1, under without effective positioning scenarios, produced during high speed motion
Extreme influence moving contact to neutrality, is unfavorable for effective arc extinguishing, and influence service life by impact；2nd, needing to divide repeatedly, closing a floodgate
In the environment of operation, vortex repulsive force mechanism needs extra setting coil to provide the actuating power of opposite direction, adds mechanism structure
The complexity and production cost made.
The content of the invention
It is an object of the invention to provide a kind of quick electromagnetic tensile machine based on fault current energy and change rate and
It is applied, which makes full use of main circuit fault current energy and change rate to realize quick acting and without control system.
To achieve the above object, the technical scheme is that：It is a kind of quick based on fault current energy and change rate
Electromagnet pull mechanism, includes current excitation solenoid coil, magnetizer, linkage, the yoke of main circuit, in the magnetizer
It is placed in that the current excitation solenoid coil inside center is on the upper side or place on the lower side, and one end of the magnetizer and the linkage
One end it is affixed, the yoke envelopes the current excitation solenoid coil.
In an embodiment of the present invention, the magnetizer is cylindrical shape, which is provided with a radial depth
For the slot structure of cylinder radius size and the slot structure from cylinder upper surface axially through to cylinder lower face, to
The vortex for blocking electromagnetic induction to produce, reduces energy loss；The magnetizer uses material as silicon steel or amorphous.
In an embodiment of the present invention, there is helicitic texture in the linkage lower end, and magnetizer upper end is provided with spiral shell at axle center
Pit, to be fastenedly connected with linkage lower end screw thread position；The linkage is made of insulating materials.
In an embodiment of the present invention, the yoke is made of electrical pure iron material, with magnetizer, the common structure in the air gap
Into magnetic conductive loop, prevent magnetic field from spreading, strengthen magnetic field, improve quick acting laser intensity and efficiency.
In an embodiment of the present invention, the more general voltage magnetizing coil of the line footpath of the current excitation solenoid coil is thick,
The number of turn is few compared with general voltage magnetizing coil.
Drawn present invention also offers a kind of using described above based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, the quick electromagnetic tensile machine is applied to open in switch contact system, the magnetizer is built in
The current excitation solenoid coil inside center place on the upper side, the system also includes insulator, moving contact, static contact, vacuum
Arc-chutes, main circuit load and main circuit power；The moving contact is oppositely arranged with static contact, and both docking end claddings
In in the vacuum extinction room, the other end of the moving contact and the other end of the linkage are fixed by the insulator
Connection, the one end of the other end of the moving contact also with the current excitation solenoid coil are connected, the current excitation helical
The other end of pipeline circle is loaded through the main circuit and is connected with one end of the main circuit power, the other end of the static contact and
The other end connection of the main circuit power.
Drawn present invention also offers a kind of using described above based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, the quick electromagnetic tensile machine is applied in the opening switch contact system of the limited fluid element of string, institute
State magnetizer and be built in the current excitation solenoid coil inside center place on the upper side, the system also includes insulator, move and touch
Head, static contact, vacuum interrupter, main circuit load and main circuit power；The moving contact is oppositely arranged with static contact, and both
Docking end be coated in the vacuum extinction room, the other end of the moving contact and the other end of the linkage pass through
The insulator is fixedly connected, and the one end of the other end of the moving contact also with the current excitation solenoid coil is connected, institute
The other end for stating current excitation solenoid coil is connected through main circuit load with one end of the main circuit power, described quiet
The other end of contact is connected with the other end of the main circuit power；Described current limiting element one end and the other end of the moving contact
Connection, the other end of current limiting element are connected with the static contact.
Drawn present invention also offers a kind of using described above based on the quick electromagnetic of fault current energy and change rate
The quick electromagnetic tensile machine, is applied to the closed ground switch contact system of the limited fluid element of string by the application of force mechanisms
In, the magnetizer is built in the current excitation solenoid coil inside center place on the lower side, the system also includes insulator,
Moving contact, static contact, vacuum interrupter, main circuit load and main circuit power；The moving contact is oppositely arranged with static contact, and
Both docking ends are coated in the vacuum extinction room, the other end of the other end of the moving contact and the linkage
It is fixedly connected by the insulator, the other end of the moving contact also connects with one end of the current excitation solenoid coil
Connecing, the other end of the current excitation solenoid coil is loaded through the main circuit to be connected with one end of the main circuit power,
The other end of the static contact is connected with the other end of the main circuit power；Described current limiting element one end and the moving contact
The other end connects, and the other end of current limiting element is connected with the static contact.
Drawn present invention also offers a kind of using described above based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, the quick electromagnetic tensile machine is applied in closure change-over switch contact system, in the magnetizer
The current excitation solenoid coil inside center place on the upper side is placed in, the system also includes spare linkage, switch are common
The common static contact of moving contact, switch, customary insulation, common vacuum interrupter, the spare moving contact of switch, the spare stationary contact of switch
Head, the spare vacuum interrupter of switch, spare insulator, main circuit load, main circuit power and stand-by power supply；The spare connecting rod
Mechanism and the other end of the magnetizer are affixed, and the common moving contact of switch is oppositely arranged with switching common static contact, and two
The docking end of person is coated in the common vacuum extinction room, and the spare moving contact of switch is opposite with switching spare static contact
Set, and both docking end is coated in the spare vacuum extinction room, the other end of the common moving contact of switch with
The other end of the linkage is fixedly connected by customary insulation, the other end of the spare moving contact of switch and institute
The other end for stating spare linkage is fixedly connected by the spare insulator, the other end of the common moving contact of switch,
Switch the one end of the other end of spare moving contact also with the current excitation solenoid coil to be connected, the current excitation solenoid
The other end of coil is loaded through the main circuit and is connected with one end of the main circuit power, one end of stand-by power supply, described to open
Close the other end other end with the main circuit power, spare respectively of the other end of common static contact, the spare static contact of switch
The other end connection of power supply.
The closure change-over switch contact system is applied in the electric appliance that need to switch power supply buses.
Compared to the prior art, the invention has the advantages that：The present invention main circuit occur major break down electric current or
During short trouble, very big by current excitation solenoid coil current value, the climbing of electric current is very high, very big climbing and huge
Fault current or short circuit current flow within and around main circuit current excitation solenoid coil space moment produce high intensity magnetic
, this magnetic phenomenon is moved towards the direction of magnetic resistance reduction according to magnetizer in magnetic field all the time, magnetizer is by magnetic field towards helical
Pipeline circle center axial tension acts on, and forces magnetizer towards hub of a spool high-speed motion, and pass through linkage quick washing
The dynamic/static contact system of vacuum interrupter and vacuum interrupter, makes switch movable contact and switch static contact quick separating, and switch is standby
, can be fast from trouble power busbar in some ms by sensitiveness industrial load with moving contact with switching spare static contact quick-make
Speed is switched to stand-by power supply busbar, greatly improves power supply quality, while can also limit short-circuit current.
Brief description of the drawings
Fig. 1 is the organigram one of the embodiment of the present invention.
Fig. 2 is the organigram two of the embodiment of the present invention.
Fig. 3 is the structure diagram that the embodiment of the present invention applies one.
Fig. 4 is the structure diagram that the embodiment of the present invention applies two.
Fig. 5 is the structure diagram that the embodiment of the present invention applies three.
Fig. 6 is the structure diagram that the embodiment of the present invention applies four.
In figure：1- current excitation solenoid coils, 2- magnetizers, 3,15- linkages, 4- yokes, 5,11- insulators,
6th, 12- moving contacts, 7,13- static contacts, 8,14- vacuum interrupters, 9- loads, 10- current limiting elements.
Embodiment
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
As shown in Figs. 1-2, a kind of quick electromagnetic tensile machine based on fault current energy and change rate of the invention, bag
Current excitation solenoid coil, magnetizer, linkage, the yoke of main circuit are included, the magnetizer is built in the electric current and swashs
Magnetic solenoid coil inside center is on the upper side or place on the lower side, and one end of the magnetizer and one end of the linkage are affixed, institute
State yoke and envelope the current excitation solenoid coil.
The magnetizer is cylindrical shape, which is provided with the groove that a radial depth is cylinder radius size
Structure and the slot structure from cylinder upper surface axially through to cylinder lower face, to block the whirlpool that electromagnetic induction produces
Stream, reduces energy loss；The magnetizer uses material as silicon steel or amorphous.There is helicitic texture in the linkage lower end, leads
Magnet upper end is provided with threaded hole at axle center, to be fastenedly connected with linkage lower end screw thread position；The linkage by
Insulating materials is made.The yoke is made of electrical pure iron material, and magnetic conductive loop is collectively formed with magnetizer, the air gap, prevents
Only magnetic field is spread, and strengthens magnetic field, improves quick acting laser intensity and efficiency.The line footpath of the current excitation solenoid coil compared with
General voltage magnetizing coil is thick, and the number of turn is few compared with general voltage magnetizing coil.
As seen in figures 3-6, present invention also offers it is a kind of using described above based on fault current energy and change rate
Quick electromagnetic tensile machine application, by the quick electromagnetic tensile machine be applied to open switch contact system in, it is described
Magnetizer is built in the current excitation solenoid coil inside center place on the upper side, the system also includes insulator, moving contact,
Static contact, vacuum interrupter, main circuit load and main circuit power；The moving contact is oppositely arranged with static contact, and both
Docking end is coated in the vacuum extinction room, and the other end of the moving contact and the other end of the linkage pass through institute
State insulator to be fixedly connected, the one end of the other end of the moving contact also with the current excitation solenoid coil is connected, described
The other end of current excitation solenoid coil is loaded through the main circuit and is connected with one end of the main circuit power, the stationary contact
The other end of head is connected with the other end of the main circuit power.
Drawn present invention also offers a kind of using described above based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, the quick electromagnetic tensile machine is applied in the opening switch contact system of the limited fluid element of string, institute
State magnetizer and be built in the current excitation solenoid coil inside center place on the upper side, the system also includes insulator, move and touch
Head, static contact, vacuum interrupter, main circuit load and main circuit power；The moving contact is oppositely arranged with static contact, and both
Docking end be coated in the vacuum extinction room, the other end of the moving contact and the other end of the linkage pass through
The insulator is fixedly connected, and the one end of the other end of the moving contact also with the current excitation solenoid coil is connected, institute
The other end for stating current excitation solenoid coil is connected through main circuit load with one end of the main circuit power, described quiet
The other end of contact is connected with the other end of the main circuit power；Described current limiting element one end and the other end of the moving contact
Connection, the other end of current limiting element are connected with the static contact.
Drawn present invention also offers a kind of using described above based on the quick electromagnetic of fault current energy and change rate
The quick electromagnetic tensile machine, is applied to the closed ground switch contact system of the limited fluid element of string by the application of force mechanisms
In, the magnetizer is built in the current excitation solenoid coil inside center place on the lower side, the system also includes insulator,
Moving contact, static contact, vacuum interrupter, main circuit load and main circuit power；The moving contact is oppositely arranged with static contact, and
Both docking ends are coated in the vacuum extinction room, the other end of the other end of the moving contact and the linkage
It is fixedly connected by the insulator, the other end of the moving contact also connects with one end of the current excitation solenoid coil
Connecing, the other end of the current excitation solenoid coil is loaded through the main circuit to be connected with one end of the main circuit power,
The other end of the static contact is connected with the other end of the main circuit power；Described current limiting element one end and the moving contact
The other end connects, and the other end of current limiting element is connected with the static contact.
Drawn present invention also offers a kind of using described above based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, the quick electromagnetic tensile machine is applied in closure change-over switch contact system, in the magnetizer
It is placed in the current excitation solenoid coil inside center place on the upper side（That is the center place to the right in Fig. 6）, the system also includes
The common moving contact of spare linkage, switch, the common static contact of switch, customary insulation, common vacuum interrupter, switch are spare
Moving contact, the spare static contact of switch, the spare vacuum interrupter of switch, spare insulator, main circuit load, main circuit power and standby
Use power supply；The other end of the spare linkage and the magnetizer is affixed, and the common moving contact of switch and switch are common
Static contact is oppositely arranged, and both docking ends are coated in the common vacuum extinction room, the spare moving contact of switch
It is oppositely arranged with switching spare static contact, and both docking ends are coated in the spare vacuum extinction room, the switch
The other end of common moving contact is fixedly connected with the other end of the linkage by customary insulation, and the switch is standby
It is fixedly connected with the other end of moving contact with the other end of the spare linkage by the spare insulator, the switch
The one end of the other end of common moving contact, the other end of the spare moving contact of switch also with the current excitation solenoid coil connects
Connect, the other end of the current excitation solenoid coil loads and one end of the main circuit power, spare through the main circuit
One end connection of power supply, the other end of the common static contact of switch, the other end of the spare static contact of switch respectively with the master
The other end connection of the other end, stand-by power supply of circuit power.
The closure change-over switch contact system is applied in the electric appliance that need to switch power supply buses.
Technical solution of the present invention is told about below by way of specific embodiment.
As shown in Fig. 1,2, a kind of quick electromagnetic tensile machine based on fault current energy and its change rate, including master
Current excitation solenoid coil 1, magnetizer 2, linkage 3, the yoke 4 of circuit, the magnetizer 2 are built in solenoid coil
1 inside center A’It is on the lower side（On）Appropriate position, the upper end and 3 Joint of linkage and synchronous actuating.
The more general voltage magnetizing coil of line footpath of main circuit current excitation solenoid coil 1 is thick, and the more general voltage of the number of turn swashs
Magnetic coil is few.Magnetizer 2 is cylindrical shape, it is the superior materials of magnetic property such as silicon steel, amorphous.The cylinder magnetic conduction body side surface
Be provided with a radial depth be cylinder radius size slot structure and the slot structure from cylinder upper surface axially through to
Cylinder lower face, to block the vortex that electromagnetic induction produces, reduces energy loss.There is screw thread in 3 lower end of linkage
Structure, is fastened with magnetizer threaded upper ends slot, and synchronous actuating.To avoid the influence of linkage ferromagnetic material, it can
It is made of the insulating plastics material for meeting intensity requirement.The yoke 4 is made of the superior electrical pure iron material of magnetic property, tightly
It is close to wrap coil tube, and magnetic conductive loop is collectively formed with cylindrical magnetizer, the air gap, prevent magnetic field from spreading, strengthen magnetic
, improve quick acting laser intensity and efficiency.
Its concrete principle is：When major break down electric current or short trouble occur for main circuit, pass through current excitation line solenoid
Enclose that 1 current value is very big, the climbing of electric current is very high, and very big climbing and huge fault current or short circuit current flow are in main circuit electricity
Space moment generation high-intensity magnetic field within and around excitatory solenoid coil 1 is flowed, according to magnetizer in magnetic field 2 all the time towards magnetic
This magnetic phenomenon is moved in the reduced direction of resistance, and magnetizer 2, towards 1 central axial pulling force effect of solenoid coil, is forced by magnetic field
Magnetizer 2 passes through the dynamic/static contact of 3 Quick push/pull of linkage impact vacuum interrupter 8 towards 1 center high-speed motion of coil
System, makes 6 static contact of moving contact, 7 quick separating or closure.
The present embodiment applies one：A kind of as shown in figure 3, quick electromagnetic pulling force based on fault current energy and its change rate
Operating mechanism opens the electric appliance of switch contact system, including main circuit current excitation solenoid coil 1, magnetizer 2, linkage
3, yoke 4, insulator 5, moving contact 6, static contact 7, vacuum interrupter 8, main circuit load 9, main circuit power U；In magnetizer 2
It is placed in 1 inside center A of solenoid coil’Appropriate position on the upper side, the upper end and 3 Joint of linkage and synchronous actuating；Even
Linkage 3 is connected to the moving contact 6 of arc-chutes 8, and centre is insulated by insulator 5, one end connection static contact 7 of main circuit power U
One end, the static contact 7 closes with moving contact 6, one end and the main circuit current excitation line solenoid of the moving contact 6
One end of circle 1 is connected, and the other end of main circuit current excitation solenoid coil 1 is connected to one end of main circuit load 9, main electricity
The other end of road load 9 is connected with the other end of main circuit power U.
The present embodiment is as follows using one operation principle：When major break down electric current or short trouble occur for main circuit, pass through
1 current value of current excitation solenoid coil is very big, and the climbing of electric current is very high, very big climbing and huge fault current or short
Road electric current space moment within and around main circuit current excitation solenoid coil 1 produces high-intensity magnetic field, according in magnetic field
Magnetizer 2 moves this magnetic phenomenon towards the direction of magnetic resistance reduction all the time, and magnetizer 2 is by magnetic field towards 1 center of solenoid coil
Axial tension acts on, and forces magnetizer 2 towards 1 center high-speed motion of coil, and pass through 3 quick washing vacuum extinction of linkage
The dynamic/static contact system of room 8, makes switch movable contact 6 and 7 quick separating of switch static contact, disjunction circuit.
The present embodiment applies two：As shown in Fig. 4, a kind of quick electromagnetic of application based on fault current energy and change rate
Repulsive force mechanism opens the electric appliance that switch contact system seals in current limiting element, including main circuit current excitation solenoid coil 1, magnetic conduction
Body 2, linkage 3, yoke 4, insulator 5, moving contact 6, static contact 7, vacuum interrupter 8, main circuit load 9, current limiting element
10, main circuit power U；The magnetizer 2 is built in 1 inside center A of solenoid coil’Appropriate position on the upper side, the upper end with
3 Joint of linkage and synchronous actuating；The linkage 3 is connected to the moving contact 6 of arc-chutes 8, and centre is by insulator 5
Insulation, one end of one end connecting valve static contact 7 and one end of current limiting element 10 of the main circuit power U, described opens
Close static contact 7 to close with switch movable contact 6, one end of the switch movable contact 6 other end with current limiting element 10, master respectively
One end of the excitatory solenoid coil 1 of circuital current is connected, and the other end of the main circuit current excitation solenoid coil 1 connects
One end of main circuit load 9 is connected to, the other end of main circuit load 9 is connected with the other end of main circuit power U.
The present embodiment is as follows using two operation principle：When major break down electric current or short trouble occur for main circuit, pass through
1 current value of current excitation solenoid coil is very big, and the climbing of electric current is very high, very big climbing and huge fault current or short
Road electric current space moment within and around main circuit current excitation solenoid coil 1 produces high-intensity magnetic field, according in magnetic field
Magnetizer 2 moves this magnetic phenomenon towards the direction of magnetic resistance reduction all the time, and magnetizer 2 is by magnetic field towards 1 center of solenoid coil
Axial tension acts on, and forces magnetizer 2 towards 1 center high-speed motion of coil, and pass through 3 quick washing vacuum extinction of linkage
The dynamic/static contact system of room 8, makes switch movable contact 6 and 7 quick separating of switch static contact, and current limiting element 10 seals in circuit limitation electricity
Stream.
The present embodiment applies three：As shown in Fig. 5, a kind of fast electric of application based on fault current energy and its change rate
Magnetic pull operating mechanism closed ground switch contact system seals in the electric appliance of current limiting element, including main circuit current excitation solenoid
Coil 1, magnetizer 2, linkage 3, yoke 4, insulator 5, moving contact 6, static contact 7, vacuum interrupter 8, main circuit load
9, current limiting element 10, main circuit power U.The magnetizer 2 is built in 1 inside center A ' appropriate locations on the lower side of solenoid coil
Place, the upper end and 3 Joint of linkage and synchronous actuating；The linkage 3 is connected to the moving contact 6 of arc-chutes 8, in
Between insulated by insulator 5, one end of one end connecting valve static contact 7 of the main circuit power U and the one of current limiting element 10
End, the switch static contact 7 separates with switch movable contact 6, one end of the switch movable contact 6 respectively with current limiting element 10
The other end, one end of main circuit current excitation solenoid coil 1 be connected, the main circuit current excitation solenoid coil
1 other end is connected to one end of main circuit load 9, and the other end and the main circuit power U's of main circuit load 9 is another
End is connected.
The present embodiment is as follows using three operation principle：When major break down electric current or short trouble occur for main circuit, pass through
1 current value of current excitation solenoid coil is very big, and the climbing of electric current is very high, very big climbing and huge fault current or short
Road electric current space moment within and around main circuit current excitation solenoid coil 1 produces high-intensity magnetic field, according in magnetic field
Magnetizer 2 moves this magnetic phenomenon towards the direction of magnetic resistance reduction all the time, and magnetizer 2 is by magnetic field towards 1 center of solenoid coil
Axial tension acts on, and forces magnetizer 2 towards 1 center high-speed motion of coil, and pass through 3 quick washing vacuum extinction of linkage
The dynamic/static contact system of room 8, makes switch movable contact 6 and 7 quick-make of switch static contact, avoids prime switch and produces strong electricity
Arc causes dangerous and quick-make is grounded.
The present embodiment applies four：A kind of as shown in fig. 6, quick electromagnetic of application based on fault current energy and its change rate
The electric appliance of pulling force operating mechanism closure change-over switch contact system switching power supply buses, including main circuit current excitation line solenoid
Circle 1, magnetizer 2, linkage 3, spare linkage 15, yoke 4, switchs common moving contact 6, switchs common static contact 7, often
With insulator 5, vacuum interrupter 8 is commonly used, spare moving contact 12 is switched, switchs spare static contact 13, switch spare vacuum extinction
Room 14, spare insulator 11, main circuit load 9, main circuit power U1, stand-by power supply U2.The magnetizer 2 is built in solenoid
1 inside center A of coil’Appropriate position to the right, its left and right both ends are respectively consolidated with spare linkage 15,3 phase of linkage
Connect and synchronous actuating；The right side of linkage 3 is connected to the moving contact 6 of arc-chutes 8, and centre is insulated by insulator 5, described
The left side of spare linkage 15 be connected to the moving contacts 12 of arc-chutes 14, centre is insulated by insulator 11, the main circuit
The connecting valve of power supply U1 often use static contact 7 one end, the one of the spare static contact 13 of auxiliary bus-bar power supply U2 connecting valves
End, the switch are commonly used static contact 7 and are closed with switch movable contact 6, the spare static contact 13 of the switch and switch movable contact
12 separation, one end of the described common moving contact 6 of switch is respectively with switching one end, the main circuit current excitation of spare moving contact 12
One end of solenoid coil 1 is connected, and the other end of the main circuit current excitation solenoid coil 1 is connected to main circuit and bears
9 one end is carried, the other end of main circuit load 9 is connected with the other end of main circuit power U1 and stand-by power supply U2.
The present embodiment is as follows using four operation principle：When major break down electric current or short trouble occur for main circuit, pass through
1 current value of current excitation solenoid coil is very big, and the climbing of electric current is very high, very big climbing and huge fault current or short
Road electric current space moment within and around main circuit current excitation solenoid coil 1 produces high-intensity magnetic field, according in magnetic field
Magnetizer 2 moves this magnetic phenomenon towards the direction of magnetic resistance reduction all the time, and magnetizer 2 is by magnetic field towards 1 center of solenoid coil
Axial tension acts on, and forces magnetizer 2 towards 1 center high-speed motion of coil, and pass through 3 quick washing vacuum extinction of linkage
Room 8 and the dynamic/static contact system of vacuum interrupter 14, make switch movable contact 6 and 7 quick separating of switch static contact, switch spare dynamic
Contact 12, can be fast from trouble power busbar in some ms by sensitiveness industrial load with switching spare 13 quick-make of static contact
Speed is switched to stand-by power supply busbar, greatly improves power supply quality, while can also limit short-circuit current.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made
During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (8)
1. a kind of quick electromagnetic tensile machine based on fault current energy and change rate, includes the current excitation helical of main circuit
Pipeline circle, magnetizer, linkage, yoke, it is characterised in that：The magnetizer is built in the current excitation solenoid coil
Inside center is on the upper side or place on the lower side, and one end of the magnetizer and one end of the linkage are affixed, and the yoke envelopes
The current excitation solenoid coil；The magnetizer is cylindrical shape, which is provided with a radial depth as circle
The slot structure of cylinder radius size and the slot structure from cylinder upper surface axially through to cylinder lower face, to block
The vortex that electromagnetic induction produces, reduces energy loss；The magnetizer uses material as silicon steel or amorphous；Under the linkage
There is helicitic texture at end, and magnetizer upper end is provided with threaded hole at axle center, to be fastenedly connected with linkage lower end screw thread position；
The linkage is made of insulating materials.
2. the quick electromagnetic tensile machine according to claim 1 based on fault current energy and change rate, its feature exist
In：The yoke is made of electrical pure iron material, collectively forms magnetic conductive loop with magnetizer, the air gap, prevents magnetic field from spreading,
Strengthen magnetic field, improve quick acting laser intensity and efficiency.
3. the quick electromagnetic tensile machine according to claim 1 based on fault current energy and change rate, its feature exist
In：The more general voltage magnetizing coil of line footpath of the current excitation solenoid coil is thick, and the number of turn is few compared with general voltage magnetizing coil.
4. a kind of drawn using described in claims 1 to 3 any one based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, it is characterised in that：The quick electromagnetic tensile machine is applied to open in switch contact system, it is described to lead
Magnet is built in the current excitation solenoid coil inside center place on the upper side, and the system also includes insulator, moving contact, quiet
Contact, vacuum interrupter, main circuit load and main circuit power；The moving contact is oppositely arranged with static contact, and both pairs
Connect end to be coated in the vacuum extinction room, the other end of the other end of the moving contact and the linkage passes through described
Insulator is fixedly connected, and the one end of the other end of the moving contact also with the current excitation solenoid coil is connected, the electricity
The other end for flowing excitatory solenoid coil is connected through main circuit load with one end of the main circuit power, the static contact
The other end be connected with the other end of the main circuit power.
5. a kind of drawn using described in claims 1 to 3 any one based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, it is characterised in that：The opening switch that the quick electromagnetic tensile machine is applied to the limited fluid element of string touches
In head system, the magnetizer is built in the current excitation solenoid coil inside center place on the upper side, the system also includes
Insulator, moving contact, static contact, vacuum interrupter, main circuit load and main circuit power；The moving contact is opposite with static contact
Set, and both docking ends are coated in the vacuum extinction room, the other end of the moving contact and the linkage
The other end be fixedly connected by the insulator, the other end of the moving contact also with the current excitation solenoid coil
One end connects, the one end of the other end through main circuit load with the main circuit power of the current excitation solenoid coil
Connection, the other end of the static contact are connected with the other end of the main circuit power；Moved with described described current limiting element one end
The other end connection of contact, the other end of current limiting element are connected with the static contact.
6. a kind of drawn using described in claims 1 to 3 any one based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, it is characterised in that：The closure ground connection that the quick electromagnetic tensile machine is applied to the limited fluid element of string is opened
Close in contact system, the magnetizer is built in the current excitation solenoid coil inside center place on the lower side, and the system is also
Including insulator, moving contact, static contact, vacuum interrupter, main circuit load and main circuit power；The moving contact and static contact
It is oppositely arranged, and both docking ends are coated in the vacuum extinction room, the other end of the moving contact and the connecting rod
The other end of mechanism is fixedly connected by the insulator, the other end of the moving contact also with the current excitation line solenoid
One end connection of circle, the other end of the current excitation solenoid coil is through main circuit load and the main circuit power
One end connects, and the other end of the static contact is connected with the other end of the main circuit power；Described current limiting element one end and institute
The other end connection of moving contact is stated, the other end of current limiting element is connected with the static contact.
7. a kind of drawn using described in claims 1 to 3 any one based on the quick electromagnetic of fault current energy and change rate
The application of force mechanisms, it is characterised in that：The quick electromagnetic tensile machine is applied in closure change-over switch contact system, institute
State magnetizer and be built in the current excitation solenoid coil inside center place on the upper side, the system also includes spare connecting rod machine
Structure, switch the common static contact of common moving contact, switch, customary insulation, commonly use vacuum interrupter, the spare moving contact of switch, open
Close spare static contact, the spare vacuum interrupter of switch, spare insulator, main circuit load, main circuit power and stand-by power supply；Institute
It is affixed to state the other end of spare linkage and the magnetizer, the common moving contact of switch is opposite with switching common static contact
Set, and both docking ends are coated in the common vacuum extinction room, the spare moving contact of switch is spare with switching
Static contact is oppositely arranged, and both docking ends are coated in the spare vacuum extinction room, the common moving contact of switch
The other end be fixedly connected with the other end of the linkage by customary insulation, the spare moving contact of the switch
The other end is fixedly connected with the other end of the spare linkage by the spare insulator, the common moving contact of switch
One end also with the current excitation solenoid coil of the other end, the other end of the spare moving contact of switch be connected, the electric current
The other end of excitatory solenoid coil connects through main circuit load and one end of the main circuit power, one end of stand-by power supply
Connect, the other end, the other end of the spare static contact of switch of the common static contact of switch are another with the main circuit power respectively
One end, the other end connection of stand-by power supply.
8. the application of the quick electromagnetic tensile machine according to claim 7 based on fault current energy and change rate, its
It is characterized in that：The closure change-over switch contact system is applied in the electric appliance that need to switch power supply buses.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510966125.4A CN105513844B (en) | 2015-12-22 | 2015-12-22 | Based on fault current energy and the quick electromagnetic tensile machine of change rate and its application |
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| CN201510966125.4A CN105513844B (en) | 2015-12-22 | 2015-12-22 | Based on fault current energy and the quick electromagnetic tensile machine of change rate and its application |
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| CN1357166A (en) * | 1999-06-22 | 2002-07-03 | 西门子公司 | Magnetic linear drive |
| CN101771270A (en) * | 2008-12-31 | 2010-07-07 | Ls产电株式会社 | Fault current limiter |
| CN202443906U (en) * | 2012-02-28 | 2012-09-19 | 万美蓉 | Quick permanent-magnetic double-power selector switch used in low-voltage distribution environment |
| CN102751116A (en) * | 2012-07-19 | 2012-10-24 | 福州大学 | Quick electromagnetic repulsion mechanism based on fault current energy and change rate and application of quick electromagnetic repulsion mechanism |
| CN203165794U (en) * | 2013-04-01 | 2013-08-28 | 四川华仪电器有限公司 | Fast dual-power transfer switch |
| JP5822643B2 (en) * | 2011-10-20 | 2015-11-24 | 三菱電機株式会社 | Electromagnetic operation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357166A (en) * | 1999-06-22 | 2002-07-03 | 西门子公司 | Magnetic linear drive |
| CN101771270A (en) * | 2008-12-31 | 2010-07-07 | Ls产电株式会社 | Fault current limiter |
| JP5822643B2 (en) * | 2011-10-20 | 2015-11-24 | 三菱電機株式会社 | Electromagnetic operation device |
| CN202443906U (en) * | 2012-02-28 | 2012-09-19 | 万美蓉 | Quick permanent-magnetic double-power selector switch used in low-voltage distribution environment |
| CN102751116A (en) * | 2012-07-19 | 2012-10-24 | 福州大学 | Quick electromagnetic repulsion mechanism based on fault current energy and change rate and application of quick electromagnetic repulsion mechanism |
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