CN103377861B - Line switching control assembly and circuit breaker for preventing overload current in line - Google Patents
Line switching control assembly and circuit breaker for preventing overload current in line Download PDFInfo
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- CN103377861B CN103377861B CN201310126205.XA CN201310126205A CN103377861B CN 103377861 B CN103377861 B CN 103377861B CN 201310126205 A CN201310126205 A CN 201310126205A CN 103377861 B CN103377861 B CN 103377861B
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- circuit
- control assembly
- detector coil
- moving assembly
- magnetic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
- H01H71/125—Automatic release mechanisms with or without manual release using a solid-state trip unit characterised by sensing elements, e.g. current transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F2007/1684—Armature position measurement using coils
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
A control assembly comprises electromagnetic actuators (22,27). The actuators are provided with windings (22) which are used for connecting with a line to be monitored and can generate a driving magnetic field, wherein a moving assembly (27) easily displaces from a standby area to a trip area through action of the driving magnetic field. An elastic unit causes the moving assembly to return from the moving assembly to the standby area. An electronic monitoring and control device (5) actuates a switch (7) so as to realize switching of a line (2) when detecting devices (23,30) detect moving of the moving assembly (27) from the standby area to the trip area.
Description
Technical field
The present invention relates to overload current protection field.More particularly it relates to there is overload in the circuit in one kind
Under current conditions, with the control assembly of circuit switching control assembly form, it is related to be transferred to electric control signal for switching
State the operation device of the switch of circuit.
The invention further relates to a type of breaker for preventing overload current in circuit, including circuit switching switch, use
In the operation device in response to electric control signal of the switch, and the circuit occurred in the circuit under overcurrent conditions is cut
Control assembly is changed, including electric control signal is transferred to the operation device.
Background technology
Electro-mechanical circuit interrupter is it is well known that and constituting a kind of overload current protective breaker of concrete form.It is electromechanical
Breaker generally includes the coil being connected in circuit to be protected, together with the movable ferromagnetic core of exposure to magnetic field, magnetic field
Produced by coil, when the latter is connected to power supply.The moving element of the switching switch in circuit to be protected mechanically connects
It is connected to movable core.In case of a short circuit, passed to out by the field drives of the coil generation movable core, and its motion
The moving element of pass, switch is accordingly opened.
Electro-mechanical circuit interrupter is using dumb, because it performs single function：Electro-mechanical circuit interrupter is held only in response to short circuit
Capable their defencive function, it is impossible to be engaged with other devices, and not easily pass through external control tripping operation.Additionally, electromechanical open circuit
Device is not provided with autorun, i.e., they not can perform the test for their own state verification.
Electronic circuit breaker there is also, although they are more more flexible than electro-mechanical circuit interrupter in use, but with reliability
Relatively low shortcoming.In these electronic circuit breakers, the electric current to be monitored is continually analysed.The amperometry is used to test, and its is true
Whether the switching in fixed circuit to be protected starts.
Specifically, electronic circuit breaker can be made I is appointed as with numeral execution2The defencive function of t, it is prevented in response to foot
Any switching of enough of short duration rush of currents for not constituting destructive thermal source.In I2In t defencive functions, electric current i square
Integration on predetermined time interval d, that is, integrateDuring more than specific threshold value, the overload current in response to electric current i is protected
Shield tripping operation.Perform I2The example of the breaker of t defencive functions is described in french patent application FR-2540303 and in the U.S.
In patent US-5220478.
Work as I2When t defencive functions are performed by numeral, the continuous measurement of the electric current i to be monitored is sampled and digitizes.Meanwhile,
Consecutive sample values are squared, and numerical calculation is used to integrateValue.This for forever recalculating in real time is held
Continuous value W continuously compares with threshold value, and switching in when the threshold value is exceeded for circuit to be protected will start.If response hair
Life is in the very short time interval that relevant overload current occurs, then overload current defencive function will only be effective.
The quadratic sum digital integration of the sampled value of the electric current i to be monitored can only by using the electronic unit for consuming big energy quilt
Promptly realize, its cost is sizable, including computing device and the cost for obtaining current measurement value, together with power supply
Cost.Therefore, for performing I2The breaker of t defencive functions is expensive.
The content of the invention
Used as minimum requirements, the purpose of the present invention is the breaker that exploitation performs defencive function, the defencive function and I2T is protected
Protective function is same or analogous, while avoiding excessive cost, it is in use flexibly and except overload current
More than one additional function can be provided outside protection.
According to the present invention, the purpose is to realize that it includes by the control assembly of the above-mentioned type：
- electromagnetic actuators, it is equipped with the winding that can produce driving magnetic field for connecting in the line, and its movement group
Part is easy to displacement by the effect of the driving magnetic field, at least from spare area to trip zone,
- Flexible element, for make moving assembly be back to the spare area on the rightabout of trip zone,
- device, for detecting that moving assembly is transferred to trip zone from spare area, and
- electronic installation, for monitoring detection means and issuing commands to operation device to activate switch, so as to be filled in detection
Put the switching that circuit is realized when having detected that moving assembly is transferred to trip zone from spare area
Be defined above in described combination, electromagnetic actuators and Flexible element together decide in response toConstant total value trip threshold.In the case of overload current, the current strength i in circuit is monitored
Growth rate will influence the trip time.However, no matter the growth rate, for start circuit-switched critical level just byObtain immediately, once the displacement of moving assembly enters trip zone enough for which, and this enters
Entering can be detected by detection means.
From description above, ensuing is that breaker defined above performs I2T defencive functions.
Additionally, the operation device of switch is by being able to carry out many difference in functionalitys and more specifically allowing for the electronics of direct PERCOM peripheral communication
Device is controlled.Specifically, the electronic installation can receive and implement for open or closure switch external control, for example for
It is related to the control of the tactful equipment of the power supply that some circuits are cut off during power overload situation.It is used for the ability of PERCOM peripheral communication by it,
Therefore electronic installation allows to use breaker, to provide New function.
The electronic installation of breaker of the invention need not complete a considerable amount of calculating within the very short time,
And can be cheap types.
Above-mentioned control assembly can combine one or more additional favorable characteristics, either individually still be applied in combination,
Specifically include it is as defined below those.
Advantageously, the control assembly includes being input into for the reception of external control, and is designed for sending order
To operation device, with response to the external control so as to activate switch.
Advantageously, the detection means includes the detector coil for the change in magnetic field, together with by moving assembly
The magnet of driving, in the case of being changed so as to the position of the moving assembly between spare area and trip zone, modification is in inspection
The magnetic field surveyed on the inside of device coil.
Advantageously, the actuator winding and detector coil determine the first and second axial passages respectively, therein
One electric discharge enters another.Moving assembly is preferably arranged to be slid axially in first passage, and logical relative to second
The axial entrance in road is moving back and forth driving magnet.
Advantageously, the control assembly includes the first magnetic circuit and the second magnetic circuit.First magnetic circuit preferably includes at least one
Through the loop of actuator winding.Second magnetic circuit preferably includes at least one through the loop of detector coil.In the second magnetic
Loop or each loop in road are preferably arranged to the loop in the first magnetic circuit or each loop there is angle to offset, around
Second axial passage, so that it is guaranteed that being decoupled relative to the obvious magnetic of the first magnetic circuit.
Advantageously, the control assembly includes separating dividing plate, for closing space localization to be divided into actuator winding
The second area that the first area and detector coil being located at are located at.The separation dividing plate is formed by ferromagnetic material, so as to reality
Now the route of regulation driving magnetic field and make the magnetic field away from the detector coil.
Advantageously, when moving assembly is moved to trip zone from spare area, the magnet is passed through and separates dividing plate.
Advantageously, it is described to separate the part that dividing plate forms the housing being made up of ferromagnetic material, a part of shape of the housing
Into through actuator winding the first magnetic circuit a part and formed through detector coil the second magnetic circuit a part.
Advantageously, the control assembly includes being engaged with first and second passage and supports actuator winding and detector
The hollow support shaft of coil.
Advantageously, the support shaft encapsulation moving assembly.
Advantageously, the housing includes two elements for interfixing, and the support shaft is axially retained at two
Between element.
The breaker of the purpose of the present invention or the above-mentioned type, it has the control assembly of the above-mentioned type.
Brief description of the drawings
Further advantage and feature, embodiment will be illustrated by the description below of concrete form embodiment of the present invention below
It is to be provided by example and be not limited to this, and shows in the accompanying drawings, wherein：
- Fig. 1 shows the sketch of the general structure according to breaker of the present invention, and also show and prevented to be protected
In the circuit of overload current, the connection of the breaker,
- Fig. 2 shows the perspective view of the electromechanical sub-component of the composition breaker shown in Fig. 1,
- Fig. 3 shows the perspective view of the assembly housing for forming sub-component part shown in Fig. 2,
- Fig. 4 shows the perspective view with section, show with the identical sub-component shown in Fig. 2, it is and wherein described
Sub-component it has assumed that initial configuration when static,
- Fig. 5 shows the sketch of the circuit for being present in the breaker shown in Fig. 1, and
- Fig. 6 shows the perspective view with section, and it is similar with Fig. 4, and wherein shown in fig. 2 sub-component is
It is assumed to be the second configuration, i.e. further to the tripping operation configuration of overload current.
Specific embodiment
In Fig. 1, reference 1 represents breaker of the invention, connects in power circuit 2 to protect it
From any unexpected overload current.
Breaker 1 includes electromechanical sub-component 3, and the function of the sub-component is that overload current is reacted, and it is by electronics
Monitoring and control device monitoring.Example, advantageously comprises microcontroller 5 as shown, and the electronic installation is controlled for switching circuit 2
Switch 7 operation device 6.The control assembly of the invention of electromechanical sub-component 3 and the forming part of microcontroller 5.
Microcontroller 5 being capable of PERCOM peripheral communication.In the illustrated example, the microcontroller 5 includes connecing for external control
By input 8, operation device 6 then can be applied to, and it is configurable for the order of disrupted circuit 2, or conversely, structure
Into the order for closing the circuit 2.
Operation device 6 assume that multiple forms.For example, may include electromechanics by the component with switch 7 that the latter is formed
Formula relay.In the example shown, operation device 6 includes the electromagnetic actuators of the known type for schematically showing, its coil
Represented by 10 and 11 respectively with mobile magnetic circuit.
Still in Fig. 1, reference 12 represents the connection terminal of the breaker 1 in circuit 2.
Electromechanical sub-component 3 is individually represented in fig. 2.The sub-component include polymer architecture in assembly housing 21
Hollow support shaft 20.In longitudinal axis X-X ', the quill shaft 20 support winding 22 and detector coil 23, they are on axial direction
It is biasing and substantially coaxial, it is centered on axis X-X '.
Assembly housing 21 separately shown in figure 3 is that two elements 24 and 25 by being connected with each other are formed.These yuan
Each in part 24 and 25 is obtained by the way that for example appropriate steel of ferromagnetic material base substrate is bent into U-shaped.By the shape of element 25
Into U the crimping of each arm, weld or be otherwise connected to the separation dividing plate that one of arm of U for being formed by element 24 is constituted
One of 26 two relative edges.The arm of element 24 is crossed by axis X-X ', and the axis passes through the base of the U formed by element 25
Bottom.
Separating dividing plate 26 influences the localization subregion of closing space：First area is formed in the side of the separation dividing plate 26,
It partially surround and comprising winding 22 by element 24.Second area is formed in the opposite side for separating dividing plate 26, and it is by element
25 partially surround and comprising detector coil 23.One or another of these first and second regions is resulted from by regulation
The route in any magnetic field in individual and ensure the remainder of its radial missing orientating component housing 21, separate dividing plate 26 and perform the
One and second area mutual Magnetic isolation function.
First magnetic circuit of the forming part of element 24, in figure 3 and it is shown in broken lines be C1.In the illustrated example, this
One magnetic circuit C1Including through the single loop of winding 22.
Dividing plate 26 is separated for the first magnetic circuit C1And for also include element 25 the second magnetic circuit for be shared.Should
It is C that second magnetic circuit is shown in broken lines in figure 32.In the illustrated example, the magnetic circuit includes two through detector coil 23
Loop.Magnetic circuit C2Can also only include through the single loop of detector coil 23.
In magnetic circuit C2In each loop around axis X-X ' relative to magnetic circuit C1Loop skew angle be 90 °, with true
Protect from the magnetic circuit C1In its obvious earth magnetism decoupling.
Winding 22 and element 24 form the static part of actuator, and the mobile plunger core body 27 of actuator can be seen in fig. 4
Go out.It is designed for detecting that the actuator of potential overload current there need not be high power, and its winding 22 can be advantageously
It is made up of single turn, example as shown, or is made up of multiturn.
The moving assembly of the forming part of plunger core body 27 being made up of ferromagnetic material such as steel, the moving assembly is arranged to
Slided along axis X-X ' in axial passage, the inside of axial passage is limited by winding 22.Spiral compression spring 28 forms elasticity
Unit, returns for the moving assembly towards detector coil 23, against the gear formed by the inner circular bead 29 of support shaft 20
Block.
One end of plunger core body 27 point to the axial passage that is limited by detector coil 23 and with permanent magnet 30.
Support shaft 20 encapsulates spring 28 and magnet 30, together with plunger core body 27, and guides sliding axially for the latter.
In addition to element 24, magnetic circuit C1Fixed core body including plunger core body 27 He the one end for being bonded on support shaft 20
31。
In addition to separating dividing plate 26 and element 25, magnetic circuit C2Static core body 32 including ferromagnetic material.The static core body
32 one end for being bonded on the support shaft, so that it extends into the axial passage limited by detector coil 23.
The element 24 and 25 of assembly housing 21 ensures that support shaft 20 mutually keeps on the direction determined by axis X-X '.This
Outward, fixed core body 31 and static core body 32 influence laterally retaining for the end of the support shaft 20, thus each be provided with accordingly
The stop point of the engagement of element 24 or 25（a dog point）, and after crimping, weld or be fixed to by reinforcing mating reaction
Person.
From above, it follows that, assembly housing 21, fixed core body 31 and static core body 32 are by the composition of electromechanical sub-component
Element is secured in place, and forms two major parts of magnetic circuit simultaneously.Therefore, they realize two functions simultaneously,
This is favourable, particularly in terms of simplification, saves weight and space, is easy to industry group to be filled with and reduces cost.
In the first stage of kludge electronic building brick 3, support shaft 20 is provided with detector coil 23 and all parts, wherein
The support shaft 20 is designed to encapsulation particularly plunger core body 27 and its magnet 30, together with spring 28.The group for thus being formed
Part is engaged through dividing plate 26 is separated with winding 22, and in element 24, element 24 has been provided with fixing core body 31, but
Also by installation elements 25.The element 25 installation and its will be subsequently completed with the connection of element 24.Or, element 25 can be assembled
One end of support shaft 20, before the latter is attached to element 24.
From above, it can be deduced that, the arrangement of electromechanical sub-component 3 will greatly simplify the operation for assembling the sub-component 3, and this is
Favourable.
Be will be seen that from Fig. 1, winding 22 is designed to be connected in the circuit 2 to be monitored.Therefore, the winding
22 and switching switch 7 be connected in series between two connection terminals 12 of the breaker 1 in circuit 2.
As can be seen that the terminal of detector coil 23 is connected to the input on microcontroller 5 in Fig. 1 and Fig. 5, its prison
The voltage surveyed between the latter.
Microcontroller 5 is also designed to for independently executing automatic test at regular intervals, to verify detector coil 23
Electric continuity is this there is provided test circuit, as shown in Figure 5.In the test circuit, detector coil 23 and for the coil
23 polarization resistance 40 is disposed in series in and is applied with different potential V0And VrefTwo points between.
The resistance of detector coil 23 is substantially less than the resistance of polarization resistance 40.Therefore, in the electricity of detector coil 23
In the case that continuity is interrupted, the potential of the set point between detector coil 23 and polarization resistance 40 will substantially change,
From V in example is illustrated that0Significantly it is moved to Vref, and will be monitored by automatic test.
Still shown in Figure 5, the power circuit for the coil 10 of operation device 6 is provided with and is controlled by microcontroller 5
Two electronic switch, it is therein each can be with transistor（transistor）41 or 42 form configuration.Transistor
41 and coil 10 be connected in series in the circuit branch for being connected to dc source.In the circuit branch being connected in parallel with coil 10
In, current regulator diode 43 and Zener diode 44 are connected in series, with mutually opposite connection.Transistor 42 and Zener diode
44 are connected in parallel.
When not having overload current, electromechanical sub-component 3 will be as shown in figure 4, wherein in spare area, and compression spring 28 is by post
Plug core body 26 is maintained at fixed positive stop position and abuts against shoulder 29.Under these conditions, magnet 30 is located across detector
The magnetic circuit C of coil 232In.Therefore, the magnetic field that it is produced is by prevailing on the inside of the detector coil 23.
In the case of having overload current on circuit 2, the current induced magnetic field flowed in winding 22, the magnetic field will resist
The effect of spring 28 drives plunger core body 27 to the position shown in Fig. 6, wherein, the plunger core body 27 has been reached for protecting
The trip zone of function.
More specifically, when its position shown in Fig. 4 is moved to the position shown in Fig. 6, the band of plunger core body 27
Magnet 30 with it away from magnetic circuit C2, make it through separating dividing plate 26 and entering above-mentioned first area, i.e., by the magnet 30
The magnetic field of generation does not exist or there's almost no in the region of the inside of detector coil 23.Plunger core body 27 is shown from Fig. 4
The passage of the position for going out to the position shown in Fig. 6 therefore cause the magnetic flux produced by magnet 30 in detector coil 23
Change.
Reduction through the magnetic flux of detector coil 23 is such, and in its terminal, the coil 23 produces voltage, its
Detected by microcontroller 5, so that therefore the latter is notified generation overload current.
The voltage detected by microcontroller 5 depends on the rate of change of magnetic flux, and therefore, depending on the fortune of moving assembly
Dynamic speed, itself is the function of the growth rate di/dt of current strength i in circuit 2.The design of detector coil 23 is so
, that is, induced voltage in the coil 23 will be sufficiently high, for example, 1 volt of magnitude is reached, to allow not make
With preliminary amplification, it is detected by microcontroller 5, so as to allow to omit expensive amplifying device.
The storage of potential energy by the compression of spring 28 and in the spring 28, plunger core body 27 is axially driven from spare area
Move to trip zone.Under these conditions, the core body is driven to enter the condition that trip zone depends on realizing, generally speaking, its
It is for I2The condition of the tripping operation of t defencive functions.
If more specifically, plunger core body 27 is up to trip zone, then integrationSubstantial constant must be reached
Minimum value, no matter how current strength i in circuit 2 moves on the fixterm of integration d.Due to its substantial constant, institute
With the minimum value equivalent to threshold value, and will be considered to constitute in the determination and application of the defencive function provided by breaker 1
The threshold value of the type.
In order to set the trip threshold of the defencive function provided by breaker 1, the rigidity of spring 28 is can adjust.
As long as two transistors 41 and 42 are closures, i.e., under direct mode operation, coil 10 will be connected to power supply, and grasp
Making device 6 will make switch 7 be maintained at closing position.
In response to the detection of overload current, the opening of the starting switch 7 of microcontroller 5.Therefore, circuit is resulted from when detecting
During overload current on 2, the opening of switch 7 must very rapidly be carried out after the detection.
If the rapid opening of switch 7 is desired, then when in the case where overload current is detected, microcontroller
5 open transistor 41 and 42 simultaneously.This causes the strong counter voltage in the terminal of coil 10, causes the quick demagnetization of the latter.This will
Cause the effect by unshowned spring, the instant displacement of mobile magnetic circuit 11, so that switch 7 returns to its open position.
The instant opening of switch 7 also has ill effect to hardware.May be it is appropriate that the rapid opening of the switch 7
Should not carry out, such as be to detect overload electricity via the external source and being not derived from of input 8 in the order for disrupted circuit 2
During stream.Microcontroller 5 can the relatively slow of starting switch 7 open.Therefore, transistor 42 is opening and transistor 41 remain closed,
So as to get around Zener diode, and due to the low counter voltage applied by current regulator diode 43, coil 10 can be lentamente
Electric discharge.
Advantageously, transistor 41 can be additionally used in by copped wave（chopping）Supply voltage is adjusted to the power supply electricity of coil 10
Stream, supply voltage can be wide-band type, that is, be easy to fluctuate in a wide range.
Breaker 1 has the advantage that, because it is designed for providing protection against the low overload current of resistance, for example, resists
Overload current less than more than ten amperes.Breaker 1 also has the advantage that reliability is high, cost price is low and size is limited.
The present invention is not limited to the form of above-described embodiment.Specifically, plunger core body 27 is transferred to jump from spare area
The detection in lock region can be realized by the device in addition to said apparatus.For example, the detection can be by microswitch or Hall
Effect sensor, or can carry out position detection other electronically or mechanically sensor and realize.However, such as the institute of Fig. 2,4 and 6
Show, including the detection means of magnet 30 and detector coil 23 provides reliability and the easily advantage for automatic test,
So as to allow to verify its operating condition, as described above.
Additionally, using control logic function for the electronic installation of control operation device 6, it may be assumed that various forms, and
And specifically, can be it is not assumed that the form of microcontroller 5.For example, as specified by abbreviation CIC and also such as " special-purpose collection
Into circuit "（Or ASIC）Described self-defined integrated circuit can be used to replace microcontroller 5.Field programmable gate array（Or
FPGA）Can be used for same purpose.As a further alternative, microcontroller 5 can be by the comparator that is associated with logic function
Substitution is supplemented.
Claims (9)
1. circuit (2) switching control component, occurs under overcurrent conditions in the circuit (2), is related to pass electric control signal
The operation device (6) of switch (7) is defeated by, to switch circuit (2), it includes：
- electromagnetic actuators (22,24,27,31), it is equipped with the actuating that driving magnetic field can be produced for being connected in the circuit
Device winding (22), and its moving assembly (27) is easy to displacement by the effect of the driving magnetic field, at least from spare area
To trip zone,
- Flexible element (28), for make moving assembly (27) be back to the spare area on the rightabout of trip zone,
- detection means (23,25,30,32), for detecting that moving assembly (27) is transferred to trip zone from spare area, and
- electronic installation (5), is opened for monitoring detection means (23,25,30,32) and issuing commands to operation device (6) with activating
Close (7), so as to have detected that moving assembly (27) is transferred to trip zone from spare area in detection means (23,25,30,32)
The switching of Shi Shixian circuits (2),
Characterized in that, detection means (23,25,30,32) includes the detector coil (23) for the change in magnetic field, even
With the magnet (30) driven by moving assembly (27), so as between spare area and trip zone, the position of moving assembly (27)
In the case of putting conversion, the magnetic field on the inside of detector coil (23) is changed, wherein,
Actuator winding (22) and detector coil (23) determine the first and second axial passages respectively, one of electric discharge
Into another, wherein, moving assembly (27) is arranged to be slid axially in the first axial passage, and relative to second axially
The axial entrance of passage is moving back and forth driving magnet (30)；And
The control assembly also includes the first magnetic circuit and the second magnetic circuit (C1、C2), wherein the first magnetic circuit (C1) worn including at least one
Cross the loop of actuator winding (22), the second magnetic circuit (C2) include at least one loop for passing through detector coil (23), also,
In the second magnetic circuit (C2) in loop or each loop be arranged to and the first magnetic circuit (C1) in loop or each loop there is angle
Skew, around second axial passage, so that it is guaranteed that relative to the first magnetic circuit (C1) its obvious earth magnetism decoupling.
2. control assembly according to claim 1, it is characterised in that the control assembly includes connecing for external control
Receive input (8), and be designed for issuing commands to operation device (6), with response to the external control so as to activate switch
(7)。
3. control assembly according to claim 1, it is characterised in that it includes separating dividing plate (26), for will closing it is empty
Between localization be divided into the first area that actuator winding (22) is located at and the second area that detector coil (23) is located at, its
In, the separation dividing plate (26) is formed by ferromagnetic material, to realize the route of regulation driving magnetic field and to make the magnetic field remote
From the detector coil (23).
4. control assembly according to claim 3, it is characterised in that when moving assembly (27) is moved to jump from spare area
During lock region, magnet (30) through separate dividing plate (26).
5. the control assembly according to claim 3 or 4, it is characterised in that the separation dividing plate (26) is formed by ferromagnetic material
Expect a part for the housing (21) of composition, a part for the housing forms the first magnetic circuit (C through actuator winding (22)1)
The the second magnetic circuit (C of a part and formation through detector coil (23)2) a part.
6. control assembly according to claim 5, it is characterised in that it includes being engaged with the first and second axial passages
And the hollow support shaft (20) of support actuator winding (22) and detector coil (23).
7. control assembly according to claim 6, it is characterised in that support shaft (20) encapsulates moving assembly (27).
8. the control assembly according to claim 6 or 7, it is characterised in that housing (21) includes two units interfixing
Part (24,25), and support shaft (20) is axially retained between two elements.
9. prevent the breaker of overload current occur in circuit (2), including：
- switch (7), for switching circuit (2),
- operation device (6), for the switch (7), in response to electric control signal, and
, for being transferred to operation device (6) by by electric control signal, there is overload current in the circuit (2) in-control assembly
In the case of, switch circuit (2),
Characterized in that, the control assembly is control assembly according to any one of the preceding claims.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR12/01127 | 2012-04-17 | ||
| FR1201127A FR2989512B1 (en) | 2012-04-17 | 2012-04-17 | CONTROL UNIT FOR CUTTING A LINE IN CASE OF OVERCURRENT IN THIS LINE AND CIRCUIT BREAKER AGAINST OVERCURRENT IN A LINE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103377861A CN103377861A (en) | 2013-10-30 |
| CN103377861B true CN103377861B (en) | 2017-05-24 |
Family
ID=48139863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310126205.XA Active CN103377861B (en) | 2012-04-17 | 2013-04-12 | Line switching control assembly and circuit breaker for preventing overload current in line |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2654065B1 (en) |
| CN (1) | CN103377861B (en) |
| ES (1) | ES2699400T3 (en) |
| FR (1) | FR2989512B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635442B (en) * | 2019-09-05 | 2020-11-10 | 广东坚宝电缆有限公司 | High-temperature power-off device of high-voltage cable in new energy vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2812965A1 (en) * | 2000-08-10 | 2002-02-15 | Schneider Electric Ind Sa | Motor protection protecting switch electromagnetic drive having fixed center/moving center and excitation coil driving circuit breaker with detector measuring magnetic gap magnetic circuit. |
| US6577217B1 (en) * | 1998-06-03 | 2003-06-10 | Hager Electro | Optimized magnetic sub-assembly |
| CN201975360U (en) * | 2009-09-23 | 2011-09-14 | Abb瑞士有限公司 | Current limiting system, current limiting unit and component thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10058075A1 (en) * | 2000-11-23 | 2002-06-06 | Abb Patent Gmbh | Electrical switching device for residual current, overcurrent and short-circuit current protection |
| DE10253018B4 (en) * | 2002-11-14 | 2013-02-28 | Abb Ag | Switching device and system and method for current measurement in the switching device |
-
2012
- 2012-04-17 FR FR1201127A patent/FR2989512B1/en not_active Expired - Fee Related
-
2013
- 2013-04-05 EP EP13354012.0A patent/EP2654065B1/en active Active
- 2013-04-05 ES ES13354012T patent/ES2699400T3/en active Active
- 2013-04-12 CN CN201310126205.XA patent/CN103377861B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6577217B1 (en) * | 1998-06-03 | 2003-06-10 | Hager Electro | Optimized magnetic sub-assembly |
| FR2812965A1 (en) * | 2000-08-10 | 2002-02-15 | Schneider Electric Ind Sa | Motor protection protecting switch electromagnetic drive having fixed center/moving center and excitation coil driving circuit breaker with detector measuring magnetic gap magnetic circuit. |
| CN201975360U (en) * | 2009-09-23 | 2011-09-14 | Abb瑞士有限公司 | Current limiting system, current limiting unit and component thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2654065A1 (en) | 2013-10-23 |
| EP2654065B1 (en) | 2018-08-29 |
| ES2699400T3 (en) | 2019-02-11 |
| CN103377861A (en) | 2013-10-30 |
| FR2989512A1 (en) | 2013-10-18 |
| FR2989512B1 (en) | 2014-04-25 |
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