CN104395975B - Current transformer assembly - Google Patents
Current transformer assembly Download PDFInfo
- Publication number
- CN104395975B CN104395975B CN201280074336.1A CN201280074336A CN104395975B CN 104395975 B CN104395975 B CN 104395975B CN 201280074336 A CN201280074336 A CN 201280074336A CN 104395975 B CN104395975 B CN 104395975B
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- Prior art keywords
- elongated tubular
- current transformer
- tubular part
- component
- electric
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/38—Instruments transformers for polyphase ac
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Insulating Bodies (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
A current transformer assembly is provided. The current transformer assembly includes a carrier frame that supports a busbar sub-assembly and multiple electromagnetic sub-assemblies. The carrier frame is adapted to support the busbars along a longitudinal direction and the electromagnetic sub-assemblies are arranged such that at least a first and a second electromagnetic sub-assembly are arranged in a fixedly spaced relationship along said longitudinal direction.
Description
Technical field
Present invention relates in general to a kind of Current Transformer Assembly.More particularly it relates to a kind of Current Mutual Inductance
Device assembly, there is provided compact form factor and be suitable to effectively integrate with suitable electric device.
Background technology
In power system, electric switch equipment represents electric switch/catalyst and electric protective device (for example, open circuit
Device, overload relay etc.) combination, be provided commonly for controlling and protect electrical equipment.This electric switch equipment is widely used for
In power system；And in particular, in for industrial system, for switching and controlling high current and voltage.Therefore, electric switch
Equipment performs two critical functions, i.e. carry out beating ON/OFF by being designed to set up and interrupt the special electric switch of high current
Closed operation；And pass through suitable electric protective device, there is provided prevent from transshipping the protection with short circuit condition.
Various electric protective devices (for example, the electric protective device based on overload relay) are depending on current detecting form
(for example, current transformer), to measure the electric current for flowing in circuit.
In addition to electric switch equipment, as described above, current detecting form is equally applicable in multiple other applications.Especially
Its ground, various electric devices (for example, power consumption measuring device etc.) also depend on this current detecting form, and Current Mutual Inductance
Device is widely used for this electric device.
Current transformer contributes to measuring the high current being typically found in many commercial and industrial applications.In this electric current
In the modular design of transformer, nonisulated bus or insulated cable/bus are unshakable in one's determination through the insulation for supporting coil.Bus forms electricity
(single turn) first winding of current transformer, and coil forms (multiturn) Secondary Winding.The first winding of current transformer is carried
It is supplied to the electric current of circuit to be protected；Which is provided with the electric current in Secondary Winding of the current in proportion in first winding
Measurement.Therefore, by the current in proportion of reduction to be fed to control circuit, current transformer contributes in electricity to be protected
High current is measured in road；Therefore, current transformer is widely used in various applications.
The design of current transformer to must assure that and carry out accurate reliable electricity according to measurement and the specific requirement of protection scheme
Stream detection.In particular, under overload and short circuit condition, the iron core of current transformer must have enough volumes, exclude magnetic
Property saturation.Therefore, it is common practice to using the current transformer of large-size.This large-scale current transformer is negatively affected
The form factor of produced electric protective device, and poorly efficient space utilization is caused, there is in switchgear application switch
Box, and there is in other application similar mounting assembly.
In a large amount of industry and business application, using three phase mains.In these cases, using three current transformers
Combination, each current transformer are used for single phase place in the supply.Therefore, the problem of poorly efficient space utilization becomes even more
Seriously.In particular, the spacing between single bus is needed very greatly, to accommodate current transformer iron core and coil block.
This form factor is mismatched with the spacing between the independent phase section in other electric devices (for example, electric contactor).
Accordingly, it is desirable to provide special design feature, to integrate current transformer and suitable electric device.
In the past few years, some effort are made that, greater compactness of form factor is realized, while meets current transformer
Various electromagnetic performances are required.However, these effort are generally directed to develop specialized material, for use in the ferrum in current transformer
The heart.Although can help to realize greater compactness of form factor using this specialized material, suppress cost more and more.
Obviously, mode that is that design is replaced and calculating is needed, the volume requirement of current transformer is reduced.
It is three Current Mutual Inductances of assembling in the case of three phase mains with regard to an important Consideration of volume requirement
Packaging efficiency during device.Main packaging configuration in for industry is related to make three current transformers adjacent to each other in the horizontal,
To produce " alignment " configuration.Need to improve the packaging efficiency of current transformer, to realize greater compactness of form factor.
A kind of technology teaching being known in the art arranges single current transformer along the surface of triangular prismatic type, with
Just produce and " staggeredly " configure.However, this set needs multiple extra parts, and importantly, can cause bigger
The additional electrical connection of cost and poorly efficient operation.
It is very apparent from the foregoing description, although to be made that some for improving packaging efficiency are attempted, but at present
Without gratifying alternative.Therefore, alignment configurations continue to be widely used in industry.
The content of the invention
In view of the foregoing, it is desirable to provide it is a kind of for electric protective device in improved Current Transformer Assembly, with
Just compact form factor is realized, without negatively affecting cost, precision and operating efficiency；And, this improved electricity
Current transformer component is preferably suitable for being effectively integrated with suitable electric device.
Therefore, it is of the invention to aim at, according to its improved setting, there is provided a kind of improved Current Transformer Assembly,
To realize compact form factor, and be conducive to being effectively integrated with suitable electric device.
By Current Transformer Assembly according to claim 1 and electic protection according to claim 11
Device realizes the target of the present invention.Other embodiments of the present invention are provided in the dependent claims.
In a first aspect of the present invention, there is provided a kind of Current Transformer Assembly.The Current Transformer Assembly is suitable for
The electric current of detection stream oversampling circuit.The Current Transformer Assembly includes bus sub-component, multiple electromagnetism sub-components and bracket.
Bus sub-component includes multiple buses.Each bus is configured to be electrically connected to circuit in its opposite end
Power source side terminal and load lateral terminal, to set up electrical connection therebetween.Therefore, load lateral terminal is flow to from power source side terminal
Electric current flow through bus.Each bus is used as (single turn) armature winding of current transformer.
Each electromagnetism sub-component includes iron core and the coil supported on iron core.Coil include multiturn insulated electric conductor and
Form (multiturn) secondary windings of current transformer.
Bracket includes multiple elongated tubular parts, and elongated tubular part extends generally along a longitudinal and along horizontal
It is set to the relation that fixation separates.Each elongated tubular part is configured to allow bus to extend through.Additionally, each is elongated
Tubular part be configured to support one of electromagnetism sub-component so that be respectively supported at first and second elongated
At least the first and second electromagnetism sub-components on tubular part are set to the relation that fixation separates in a longitudinal direction.
Therefore, basic concept of the invention is to make electromagnetism sub-component fully interlock along the length of bus, to prop up
The elongated tubular part of support electromagnetism sub-component be placed on be limited to a transverse width unshakable in one's determination close to position, this and this area
The transverse width of at least two iron core of the prior art is contrasted, and is formed and more effectively encapsulates current transformer, and because
This, forms the greater compactness of form factor of the lateral dimension along current transformer.
An embodiment of the invention, each elongated tubular part with extending outwardly from its edge and
With its rigidly connected support lugn.Further, multiple elongated tubular parts have and are slidably disposed on thereon extremely
A few keeper.Each keeper is fixably coupled to another keeper in a longitudinal direction with the relation for separating
At least one of with support lugn.In this set, electromagnetism sub-component be fixedly mounted in positioned at the support lugn with
On described elongated tubular part in the middle of one keeper.According to these technical characteristics, each elongated tubular part
It is firmly supported on an elongated tubular part, therefore, the Current Transformer Assembly of the present invention effectively bears mechanical punching
Hit and vibrate.Further, this set contributes to the electric rating according to Current Transformer Assembly, pacifies in a longitudinal direction
Fill various sizes of electromagnetism sub-component.
According to another implementation of the invention, each elongated tubular part divides with the center portion thereof is generally disposed at
Support lugn.Support lugn on adjacent elongated tubular part is integral, to be maintained at elongated tubular part
Between the relation that separates of fixation.In here text, on relative side of the support lugn relative to longitudinal direction, electromagnetism sub-component
Arrange on spatially adjacent elongated tubular part.Additionally, along longitudinal two ends pair with multiple elongated tubular parts
Two keepers answered are for being fixedly mounted electromagnetism sub-component on elongated tubular part.Each keeper is shape in which
Into the platy structure in multiple holes, multiple elongated tubes to be arranged on along longitudinally-slidable from its corresponding end
On part.The two keepers are interconnected with being fixed to one another.These technical characteristics guarantee compact form factor, and advantageously help
Assembling Current Transformer Assembly.Further, each electromagnetism sub-component is firmly supported on an elongated tubular part, because
This, or even when by mechanical shock and vibration, the Current Transformer Assembly of the present invention also keeps stable.Additionally, this set
Contribute to the electric rating according to Current Transformer Assembly, various sizes of electromagnetism sub-component is installed in a longitudinal direction.
According to another implementation of the invention, bracket includes the mounting platform for being suitable to mounted thereon electric device.
Further, the coil in each electromagnetism sub-component is configured to may be operably coupled to electric device.In each of the present invention
Plant in illustrative embodiments, electric device is electric trip gear, electrical metering device and is communicatively coupled to control net
One in the intelligent electronic device of network.According to these technical characteristics, the present invention advantageously facilitates the current transformer group of integration
Part, the component detect electric current in circuit and suitably process the electric current for being detected for passing through electric device.
According to another implementation of the invention, Current Transformer Assembly includes shell.Shell includes that at least two is mutual
The casing part of benefit, assembles the casing part of complementation, by way of adjoining so as to the space of closing formed therein that.Shell is carried
For multiple slots, slot is at least adapted to allow for bus and extends through wherein.
In a second aspect of the present invention, there is provided a kind of electric protective device.Electric protective device be suitable for it is excessively electric
Protection circuit under the related fault condition of stream.Electric protective device includes electric trip gear.Electric protective device has one kind
Basic construction, the construction are essentially similar with the construction of Current Transformer Assembly.Additionally, bracket includes being suitable on which peace
Fill the mounting platform of electric trip gear.Coil in each electromagnetism sub-component may be operably coupled to electric trip gear.
It is similar to the technical characteristic with reference to first aspect description in various other technical characteristics of a second aspect of the present invention.
Description of the drawings
Below, with reference to the illustrated embodiment for showing in the accompanying drawings, the present invention is further described, wherein：
Figure 1A -1B illustrate the perspective view and exploded of the Current Transformer Assembly of an embodiment of the invention
Figure；And
Fig. 2A -2C illustrate the fragmentary, perspective view of the Current Transformer Assembly of an embodiment of the invention.
Specific embodiment
With reference to diagram, various embodiments are described, wherein, similar reference number is used for representing similar portion in the text
Part.In the following description, in order to explain, it is proposed that multiple details, thoroughly to understand one or more embodiment party
Formula.Obviously, without the need for these details, this embodiment can also be put into practice.
With reference to Figure 1A and 1B, an embodiment of the invention, show electric protective device 100 perspective view and
Partial exploded view.
Current Transformer Assembly 100 is suitable for electric current is detected in three-phase circuit.Current Transformer Assembly 100 includes bus
Sub-component 102, multiple electromagnetism sub-components 104, bracket 110, electric device 112 and shell 114.Each electromagnetism sub-component 104
Including unshakable in one's determination 106 and coil 108.
Bus sub-component 102 includes multiple bus 102a to 102c.Each bus 102 is single-phase corresponding with circuit.
It is clear that Current Transformer Assembly 100 is configurable in three-phase circuit from diagram.Each bus is complete metal
Bar, has screwed hole at its two ends, as shown in adjacent figure.Therefore, be configured to can in its opposite end for each bus 102
It is electrically connected to the power source side terminal (not shown) and load lateral terminal (not shown) of circuit, electrically connects to set up therebetween
Connect.As described above, when bus 102 is connected to mains side and load lateral terminal, flowing to from power source side terminal in each phase place
The electric current of load lateral terminal flows through corresponding bus 102.Each bus be used as Current Transformer Assembly 100 (single turn) it is primary around
Group.In the embodiment of the replacement of the present invention, can as one sees fit using any known construction of bus 102.
As described above, each electromagnetism sub-component 104 includes unshakable in one's determination 106 and coil 108.One in the present invention is preferred
In embodiment, unshakable in one's determination 106 construct with hollow rectangle frame-type, to be suitable for installing on bracket 110.By in ability
Known suitable method in domain, supports coil 108 on unshakable in one's determination 106.In an exemplary embodiment of the present invention, in order to
Compact form factor is realized, coil 108 is only installed only at along side surface direction (x-axis) or two of the rectangular frame for extending
On individual supporting leg, and the supporting leg of the rectangular frame extended along horizontal direction (z-axis) does not support coil 108.Coil 108 includes
Multiturn insulated electric conductor, and form (multiturn) Secondary Winding of Current Transformer Assembly 100.
Bracket 110 is formed of an electrically insulating material.The present invention one preferred embodiment in, bracket 110 have it is whole
Body is designed and by suitable electrically insulating material of the casting with fusing form manufacturing.In the example of the replacement of the present invention
In, by assembling modular subassemblies, have been able to manufacture bracket 110.
Bracket 110 is suitable for supporting bus sub-component 102, electromagnetism sub-component 104 and electric device 112.With reference to Fig. 2A
To Fig. 2 C, the construction and mode of these elements supported on bracket 110 is explained in greater detail.
It should be noted that electric device 112 is a kind of optional element, and needing the group by primary and secondary winding
When closing detection electric current, it is possible to provide the electric device.Electric device 112 is any electricity for measuring in circuit needed as input
The appropriate device of stream, and one or more steps is performed according to this input.To reach this purpose, in each electromagnetism subgroup
Coil 108 in part 104 is configured to may be operably coupled to electric device 112.In the various exemplary embodiment party of the present invention
In formula, electric device 112 is electric trip gear, electrical metering device and the smart electronicses for being communicatively coupled to controlling network
One in device.Therefore, the present invention advantageously facilitates the Current Transformer Assembly of integration, and the component detects electric current in circuit
And suitably process the electric current for being detected by electric device.
When electric device is electric trip gear, the electric device is configured at least in predefined time interval
It is interior, according to the electric current of the circuit flow through more than predefined threshold value, generate trip signal.By the measurement of electric current in circuit from
Electric device is supplied in coil 108.The various examples of this electric trip gear include bi-metal overload relay, electronics mistake
Carry relay and can be configurable to generate and transmit this intelligent electronic device of trip signal.Therefore, term " is electrically threaded off
Device " is interpreted as its implication as most wide as possible, and is not intended to be limited to for generating any concrete shape of trip signal
Formula.In this embodiment, the Current Transformer Assembly 100 of integration is used as " electric protective device ", and the device is suitable for protection
Circuit is away from this fault condition for causing overcurrent in circuit.
Equally, when electric device is electrical metering device, the electric device is configured to protect in the load-side of circuit
Hold power consumption record.This information can be further used for charging and other purposes.
Further, when electric device is communicatively to be coupled to the intelligent electronic device of controlling network, electric device will
One or more controls and monitoring module in controlling network are supplied to regard to the information of electric current in circuit.
Above-mentioned various elements are enclosed in shell 114.Especially as shown in fig. 1b, shell 114 includes that at least two is complementary
Casing part 114a and 114b, assemble the two complementary casing parts by way of adjacent, so as to envelope formed therein that
The space closed.Shell 114 provides multiple slots, and these slots are adapted to allow for bus and extend through.Further, alternatively,
The additional slot of the desired amt of suitable form factor is provided, to allow to access electric device.If as discussed above, do not make
Use integrated electrical device, then need extra slot, to access the coil 108 in electromagnetism sub-component 104.It should be noted that
It is that extra casing part 114c shown in neighbor map is provided solely for Aesthetic Function, therefore, if it is desirable to if, can omit
Extra casing part.
The operation of Current Transformer Assembly 100 is known in the art, and for the sake of completeness, is simply solved now
Release.
Bus 102 carries the electric current from mains side to load-side in circuit, and as Current Transformer Assembly 100
Armature winding.Due to the electric current in bus 102, in the secondary windings for forming coil 108, proportional electric current is sensed.Such as
Fruit has electric device 112, then provide the faradic current in coil 108 for which, otherwise, by the conjunction in shell 114
Suitable slot, the lead of switch-on coil 108.When with electric device, electric device 112 further can send letter from shell 114
Number, one or more devices being sent to outside shell 114.
Referring now to Fig. 2A to 2C, the local of the Current Transformer Assembly of an embodiment of the invention is shown
Perspective view.
In particular, Fig. 2A provides the perspective view of bracket 110.Bracket 110 includes multiple elongated tubular parts 202.
Bracket 110 shown in adjacent figure shows three this elongated tubular parts 202.This configuration is suitable for mutual in electric current
When sensor component 100 is used in three-phase circuit.
(y-axis) extends elongated tubular part 202 substantially in longitudinal direction, and arranges along side surface direction (x-axis)
For the relation that fixation separates.
Each elongated tubular part 202 is configured to allow bus 102 to extend through.Additionally, each elongated tubulose
Part 202 is configured to support an electromagnetism sub-component 104, as shown in Figure 2 B.
Various embodiments of the invention, respectively in the first elongated tubular part and the second elongated tubular part
At least the first electromagnetism sub-component supported on (for example, respectively elongated tubular part 202a and 202b) and the second electromagnetism subgroup
(y-axis) is set to the relation that fixation separates to part (for example, respectively electromagnetism sub-component 114a and 114b) in a longitudinal direction.For
It is arranged on arbitrary to electromagnetism sub-component 104 on adjacent multipair elongated tubular part 202, the above is effective.
Therefore, electromagnetism sub-component 104 interlocks along the length of bus 102, and bus extends through elongated tubular part
202, therefore, it is aligned also along longitudinal direction (y-axis), to support the elongated tubular part 202 of electromagnetism sub-component 104 favourable
Position of the ground in being more nearly, forms, therefore, along current transformer group
The lateral (x-axis) of part 100 is with greater compactness of form factor.
As described in the above description, bracket 110 supports electromagnetism sub-component 104.Now, this side is more fully described
Face.
Each elongated tubular part 202 is provided with from its edge extending outwardly and convex with its rigidly connected support
Edge 204.During casting bracket 110, preferably the manufacture of support lugn 204 is integrated.Or, during assembly,
Support lugn 204 can be individually formed and be connected to elongated tubular part 202.
Additionally, multiple elongated tubular parts 202 have at least one keeper 206 being slidably disposed on thereon.
In fig. 2 c in shown an embodiment of the invention, using two such keeper 206a and 206b.Keeper
Then 206a and 206b, is fixedly connected to one another by belt device 208 from the tubular part 202 that opposite end is inserted in elongated.
In an alternative embodiment, single keeper 206 is used for each elongated tubular part 202.Herein, each
Keeper 206 is fixedly connected to corresponding support lugn 204 by the belt device similar with belt device 208.This two
In individual embodiment, one or more keepers 206 in a longitudinal direction (y-axis) regularly remain with support lugn 204 every
The relation opened.
Each electromagnetism sub-component 104 is fixedly mounted in corresponding between support lugn 204 and a keeper 206
On elongated tubular part 202.Therefore, this set advantageously contributes to the electric rating according to Current Transformer Assembly,
(along longitudinal direction) installs the electromagnetism sub-component of different core dimensions.
In a specific embodiment of the present invention, passed through as shown in Fig. 2A to Fig. 2 C, each elongated tube
Part 202 has the support lugn 202 being generally disposed in the center portion thereof point.Propping up on adjacent elongated tubular part 202
Support flange 204 is integrated to be formed, so as between elongated tubular part 202, keep fixation to separate relation.It is clear that
Casting technique can be used, bracket 110 is fabricated to into overall unit easily.
In the specific embodiment, on relative side of the support lugn 204 relative to longitudinal direction (y-axis), electromagnetism
Component 104 is arranged on spatially adjacent elongated tubular part 202, as shown in figures 2 b and 2 c.Additionally, along longitudinal side
To (y-axis) two keeper 206a and 206b corresponding with the two ends of multiple elongated tubular parts 202 in elongated pipe
Electromagnetism sub-component 104 is fixedly mounted on shape part 202.
As shown in adjacent diagram, the platy structure in each keeper 206 multiple holes that have been formed therein that, so as to
From its corresponding end, (y-axis) is slidably disposed on elongated tubular part 202 in a longitudinal direction.The two keepers
206 interconnect with being fixed to one another.
The band being entirely connected with each keeper 206 can be used, is formed for making the two keepers 206 regularly
The belt device 208 of interconnection so that keeper 206 can be connected by paired mode, wherein, (for example, protect in the first keeper
Gripping member 206a) at least one band be provided with suitable adapting device, so as to be connected to the second keeper (for example, protect
Gripping member 206b) on alternative in vitro test.
In an exemplary embodiment of the present invention, belt device 208 includes single band, is installing electromagnetism subgroup
After part 104 and keeper 206, single band is wrapped in around bracket 110 by ribbon-like manner.In this example, band exists
One end of band includes belt buckle-like structure, and the other end of band includes the striped that is formed in which, so as to the other end
Belt buckle-like structure is passed through in forward direction, and prevent from rear moving to direction contrary with the forward direction.
The Basic Design of belt device 208 is characterised by, it is ensured that desired interconnection can be carried out in variable-length, so as not to
Same electromagnetism sub-component 104 can be appropriately supported on bracket 110.
Obviously, it is likely that the belt device with various replacements, and it is usable in the present invention as is generally known in the art
Any this suitable belt device.
Further, bracket 110 has the mounting platform 210 for being suitable on which to install electric device 112.In a reality
Example in, it is visible in adjacent diagram, mounting platform 210 along z-axis improve, and be positioned to with longitudinal direction and side surface direction pair
The plane (x-y plane) answered is almost parallel.However, in the direction of mounting platform 210, can have various modifications.Additionally, bracket
110 are provided with engagement device 212, to be detachably coupled to shell 114.
The present invention contributes to more effectively encapsulating Current Transformer Assembly, therefore, contribute to along Current Transformer Assembly
Laterally have greater compactness of form factor.Further, Current Transformer Assembly of the invention contributes to electric with suitable
Device is readily and efficiently integrated.
The design of the present invention advantageously contributes to assemble Current Transformer Assembly.Importantly, this design contributes to root
Various sizes of electromagnetism sub-component is installed according to the electric rating (along longitudinal direction) of Current Transformer Assembly.Additionally, the present invention
Current Transformer Assembly has sane construction, and is reasonably resistant to mechanical shock and vibration.
Although with reference to some embodiments, describing the present invention in detail, it should be understood that the invention is not restricted to those
Embodiment.In view of the disclosure, in the case of without departing substantially from scope and spirit of the present invention, those skilled in the art can be appreciated that
Many modifications and changes.Therefore, the scope of the present invention is represented by following claims (rather than above description).In claim
All changes, modification and change in the meaning and scope of equivalent are considered in the range of which.
List of reference characters
100 Current Transformer Assemblies
102 bus sub-components
104 electromagnetism sub-components
106 is unshakable in one's determination
108 coils
110 brackets
112 electric devices
114 shells
202 elongated tubular parts
204 support lugns
206 keepers
208 belt devices
210 mounting platforms
212 engagement devices.
Claims (16)
1. a kind of Current Transformer Assembly (100), the Current Transformer Assembly (100) are adapted to detect for flowing through the electric current of circuit,
The Current Transformer Assembly (100) includes：
Bus sub-component (102), the bus sub-component (102) including multiple buses, wherein, each described bus bar configuration be
Opposite end can be electrically connected to the power source side terminal and load lateral terminal of the circuit, to set up electrical connection therebetween,
Multiple electromagnetism sub-components (104), wherein, each described electromagnetism sub-component (104) is including (106) unshakable in one's determination and in the ferrum
The coil (108) supported on the heart (106), and
Bracket (110), the bracket (110) include multiple elongated tubular parts (202), and the elongated tubular part is substantially
Extend in a longitudinal direction and the relation along side surface direction regularly to separate is arranged, wherein, each described elongated pipe
Shape part (202) is configured to allow the bus to extend through, and is further configured to support one of them described electromagnetism
Component (104) so that be respectively supported on the first elongated tubular part and the second elongated tubular part (202a and 202b)
At least the first electromagnetism sub-component and the second electromagnetism sub-component (104a and 104a) separated along the longitudinal direction with fixation
Relation is arranged, wherein, each elongated tubular part (202) is provided with the center of the elongated tubular part
Partial support lugn (204), and the support lugn (204) on adjacent described elongated tubular part (202)
It is integrated into the relation for regularly separating to be maintained between the elongated tubular part (202).
2. Current Transformer Assembly (100) according to claim 1, wherein, each described elongated tubular part (202)
It is provided with from edge and extends outwardly and rigidly connected support lugn (204), and the plurality of elongated tubular part
(202) at least one keeper (206) that slidably can be arranged is additionally provided with, and each described keeper (206) can
Another keeper and/or the support lugn (204) are fixedly connected in spaced relation along the longitudinal direction, and
And, wherein, the electromagnetism sub-component (104) is fixedly mounted in positioned at the support lugn (204) and guarantor one of them described
On described elongated tubular part (202) in the middle of gripping member (206).
3. Current Transformer Assembly (100) according to claim 1, wherein, the electromagnetism sub-component (104) is at described
Spatially adjacent described elongated tubular part is set with regard to the longitudinal direction on the relative side of support flange (204)
(202) on.
4. Current Transformer Assembly (100) according to any one of claim 1 or 3, is also included along the longitudinal direction side
To at least two keeper (206) corresponding with the two ends of the plurality of elongated tubular part (202), wherein, each holding
Part (206) is the platy structure for internally defining multiple holes, can slide from corresponding end along the longitudinal direction
Be arranged on the plurality of elongated tubular part (202), and wherein, the keeper (206) interconnects with being fixed to one another.
5. Current Transformer Assembly (100) according to any one of claim 1 to 3, wherein, the bracket (110) is also
Including being suitable to be provided with the mounting platform (210) of electric device (112)；And wherein, in each described electromagnetism sub-component (104)
The coil (108) be configured to be operably connected to the electric device (112).
6. Current Transformer Assembly (100) according to claim 4, wherein, the bracket (110) also includes being suitable to install
There is the mounting platform (210) of electric device (112)；And wherein, the coil in each described electromagnetism sub-component (104)
(108) it is configured to be operably connected to the electric device (112).
7. Current Transformer Assembly (100) according to claim 6, wherein, the electric device (112) is electrically to thread off
Device.
8. Current Transformer Assembly (100) according to claim 6, wherein, the electric device (112) is electrical metering
Device.
9. Current Transformer Assembly (100) according to claim 6, wherein, the electric device (112) is communicatively coupling
It is bonded to the intelligent electronic device of controlling network.
10. Current Transformer Assembly (100) according to any one of claim 1-3, also including shell (114), wherein,
Casing part (114a, 114b) of the shell (114) including at least two complementations, assembles the complementation in adjacent manner
Casing part, internally to form the space of closing, wherein, the shell (114) provides multiple slots, and the slot is suitable to permit
Perhaps described bus is extended through.
11. Current Transformer Assemblies (100) according to claim 7, also including shell (114), wherein, the shell
(114) casing part (114a, 114b) including at least two complementations, assembles the housing department of the complementation in adjacent manner
Point, internally to form the space of closing, wherein, the shell (114) provides multiple slots, and the slot is adapted to allow for described
Bus is extended through.
12. Current Transformer Assemblies (100) according to claim 8, also including shell (114), wherein, the shell
(114) casing part (114a, 114b) including at least two complementations, assembles the housing department of the complementation in adjacent manner
Point, internally to form the space of closing, wherein, the shell (114) provides multiple slots, and the slot is adapted to allow for described
Bus is extended through.
13. Current Transformer Assemblies (100) according to claim 9, also including shell (114), wherein, the shell
(114) casing part (114a, 114b) including at least two complementations, assembles the housing department of the complementation in adjacent manner
Point, internally to form the space of closing, wherein, the shell (114) provides multiple slots, and the slot is adapted to allow for described
Bus is extended through.
A kind of 14. electric protective devices (100), the electric protective device (100) are suitable in the failure related to overcurrent
Under the conditions of protection circuit, the electric protective device (100) includes：
Electric trip gear (112),
Bus sub-component (102), the bus sub-component (102) including multiple buses, wherein, each bus bar configuration is relative
End can be electrically connected to the power source side terminal and load lateral terminal of the circuit, to set up electrical connection therebetween,
Multiple electromagnetism sub-components (104), wherein, each described electromagnetism sub-component (104) is including (106) unshakable in one's determination and in the ferrum
The coil (108) supported on the heart (106), wherein, the coil (108) is connected to the electric trip gear with being operable to
(112), and
Bracket (110), the bracket (110) is including being suitable to be provided with the mounting platform of the electric trip gear (112)
(210), and the bracket (110) also include multiple elongated tubular parts (202), the elongated tubular part approximately along
Longitudinal direction to extend and the relation setting along side surface direction regularly to separate, wherein, each described elongated tubulose
Part (202) is configured to allow bus to extend through, and is additionally configured to support one of them described electromagnetism sub-component (104),
So that what is be respectively supported on the first elongated tubular part and the second elongated tubular part (202a, 202b) is at least first electric
Magneton component and the second electromagnetism sub-component (104a, 104b) are arranged along the longitudinal direction with the relation that fixation separates, wherein,
Each described elongated tubular part (202) is provided with the support lugn of the core of the elongated tubular part
(204) support lugn (204), and on adjacent described elongated tubular part (202) is integrated into keep
The relation for regularly separating between the elongated tubular part (202).
15. electric protective devices (100) according to claim 14, wherein, each described elongated tubular part (202)
It is provided with from edge and extends outwardly and rigidly connected support lugn (204), and the plurality of elongated tubular part
(202) at least one keeper (206) for slidably arranging is provided with, and each described keeper (206) being capable of edge
The longitudinal direction and be fixedly connected to another keeper (206) and/or the support lugn in spaced relation
(204), and wherein, the electromagnetism sub-component (104) be fixedly mounted in positioned at the support lugn (204) and one of them
On described elongated tubular part (202) in the middle of the keeper (206).
16. electric protective devices (100) according to claims 14 or 15, also including shell, wherein, the shell
(114) casing part (114a, 114b) including at least two complementations, assembles the housing department of the complementation in adjacent manner
Point, internally to form the space of closing, wherein, the shell (114) provides multiple slots, and the slot is adapted to allow for described
Bus is extended through.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2012/062823 WO2014005615A1 (en) | 2012-07-02 | 2012-07-02 | Current transformer assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104395975A CN104395975A (en) | 2015-03-04 |
| CN104395975B true CN104395975B (en) | 2017-05-03 |
Family
ID=46598469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280074336.1A Active CN104395975B (en) | 2012-07-02 | 2012-07-02 | Current transformer assembly |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN104395975B (en) |
| BR (1) | BR112014032888A2 (en) |
| IN (1) | IN2014DN10341A (en) |
| WO (1) | WO2014005615A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319430A (en) * | 2015-10-28 | 2016-02-10 | 国家电网公司 | Three-axis current sensor |
| DE102017101194B4 (en) | 2017-01-23 | 2018-08-16 | Hager Electro Gmbh & Co. Kg | Fastening device for fixing an electricity meter |
| CN108511275A (en) * | 2018-04-27 | 2018-09-07 | 天津市百利电气有限公司 | The electronic control module of intelligent plastic shell-type breaker |
| EP3772796A1 (en) * | 2019-08-06 | 2021-02-10 | Siemens Aktiengesellschaft | Busbar holder and installation distributor |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2121380A1 (en) * | 1970-09-11 | 1972-03-16 | Aprecher & Schuh Ag | Multi-phase current transformer for supplying thermal overcurrent tripping devices |
| CN2143354Y (en) * | 1992-12-10 | 1993-10-06 | 成都市互感器厂 | Current mutual inductor with bus clip |
| FI932122A (en) * | 1993-05-11 | 1994-11-12 | Abb Stroemberg Kojeet Oy | Flood resistance saturation based electric current sensor and procedure for tuning thereof |
| CN1312950A (en) * | 1999-06-22 | 2001-09-12 | 三菱电机株式会社 | Circuit breaker with live-state information measuring instrument |
| DE29917174U1 (en) * | 1999-09-30 | 2000-01-13 | Abb Patent Gmbh | Electronic overload relay |
| FR2804512B1 (en) * | 2000-01-28 | 2002-06-07 | Socomec Sa | ELECTRICAL ENERGY METER |
| DE10013072B4 (en) * | 2000-03-17 | 2006-06-22 | Aeg Niederspannungstechnik Gmbh & Co Kg | Primary conductor arrangement for the conductor of an electromagnetic trip unit |
| US7232335B2 (en) * | 2005-05-13 | 2007-06-19 | Ekstrom Industries, Inc. | K-series watthour meter socket adapter |
| US7857660B2 (en) * | 2007-11-09 | 2010-12-28 | Randy Austin | Watt hour meter socket adapter with current transformer housing structure |
| CN201181644Y (en) * | 2008-04-09 | 2009-01-14 | 孙志英 | Current mutual inductor wire stand and flexible wire structure |
| IT1395697B1 (en) * | 2009-05-28 | 2012-10-19 | Abb Spa | CURRENT TRANSFORMER, PROTECTIVE DEVICE INCLUDING SUCH TRANSFORMER, AND RELATIVE SWITCH |
| FR2953936B1 (en) * | 2009-12-11 | 2011-12-23 | Schneider Electric Ind Sas | ELECTRICAL MEASURING APPARATUS WITH TWO CONNECTION POSSIBILITIES |
| US8487724B2 (en) * | 2010-11-23 | 2013-07-16 | Schneider Electric USA, Inc. | Fully enclosed electronic trip unit for a molded case circuit breaker |
| GB2487555B (en) * | 2011-01-26 | 2014-08-27 | Rayleigh Instr Ltd | Current transformer |
-
2012
- 2012-07-02 CN CN201280074336.1A patent/CN104395975B/en active Active
- 2012-07-02 IN IN10341DEN2014 patent/IN2014DN10341A/en unknown
- 2012-07-02 WO PCT/EP2012/062823 patent/WO2014005615A1/en active Application Filing
- 2012-07-02 BR BR112014032888A patent/BR112014032888A2/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DN10341A (en) | 2015-08-07 |
| CN104395975A (en) | 2015-03-04 |
| WO2014005615A1 (en) | 2014-01-09 |
| BR112014032888A2 (en) | 2017-06-27 |
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