CN108732399A - Electric parameter measurement component - Google Patents
Electric parameter measurement component Download PDFInfo
- Publication number
- CN108732399A CN108732399A CN201710243330.7A CN201710243330A CN108732399A CN 108732399 A CN108732399 A CN 108732399A CN 201710243330 A CN201710243330 A CN 201710243330A CN 108732399 A CN108732399 A CN 108732399A
- Authority
- CN
- China
- Prior art keywords
- shell
- electric
- electric conductor
- module
- parameter measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- 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
- H01H71/04—Means for indicating condition of the switching device
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
A kind of electric parameter measurement component, which is characterized in that the electric parameter measurement component includes shell and the wireless measurement module being accommodated in the shell, at least one electric conductor, at least one Rogowski coil；The wherein described electric conductor passes through the Rogowski coil, the Rogowski coil measurement to flow through the electric current of the electric conductor；The Rogowski coil is connect by cable with the wireless measurement module；One end of the electric conductor is connected with load, another end of the electric conductor and subordinate's terminals of breaker connect.
Description
Technical field
This disclosure relates to a kind of measuring devices for measuring breaker, more particularly to a kind of for measuring breaker
Parameters of electric power measurement assembly.
Background technology
There are mainly two types of schemes for the measurement of electric parameter (electrical energy measurement) of each distribution loop at present：
(1) electrification minor trip unit breaker provide measure function, by wired mode by data transfer extremely
Gateway.
(2) external electric energy meter or electric parameter measurement instrument, extra current mutual inductor carries out signal acquisition and measurement, by having
Line mode is by data transfer to gateway.
The cost of scheme (1) is very high, is not suitable for the breaker with thermo magnetic trip release unit or magnetic trip unit, and low current
It does not work, it cannot be guaranteed that the accuracy of electrical energy measurement.The wiring of scheme (2) is complicated, and additional voltage and current is needed to sample line, electricity
Source supply lines, connection, and increase foreign current mutual inductor.Phase shift that foreign current mutual inductor is brought and therefore caused by work(
There is no standards at present for rate electric energy measurement error, can not be evaluated.It is possible that can be made because current transformer selection is improper
At additional measurement error.In addition, improper cabling, for example CT secondary lines are bundled together with pressure-wire, connection is without well connecing
Ground etc. may all cause the measurement error under EMC interference or communication failure.Cabling standardized degree depends primarily on disk factory worker
Custom and technical capability, it is difficult to control.
Invention content
The defects of for the above-mentioned prior art, a kind of parameters of electric power survey is provided according to one aspect of the present disclosure
Measure component, the electric parameter measurement component includes shell and the wireless measurement module being accommodated in the shell, at least
One electric conductor, at least one Rogowski coil (Rogowski coil)；The wherein described electric conductor passes through the Rogowski coil, institute
State the electric current that Rogowski coil measurement flows through the electric conductor；The Rogowski coil is connected by cable and the wireless measurement module
It connects；One end of the electric conductor is connected with load, another end of the electric conductor and subordinate's terminals of breaker
Connection.
Rogowski coil without ferrimagnet is without hysteresis effect, almost nil phase error, no magnetic saturation phenomenon, because
And measurement range can be from several amperes to the electric current of hundreds of kilo-amperes；It is simple in structure.According to the electric parameter measurement group of present disclosure
Part provides the accurate measurement (Class1) of at least 3 times rated current, prevents the current measurement under overload situations and electrical energy measurement
Mistake.
According to the other side of present disclosure, it is provided with wireless transport module in the wireless measurement module, is used
In will wirelessly be transmitted via the signal for coming from the Rogowski coil after the wireless measurement resume module.The nothing
The power supply of line measurement module is directly obtained from the electric conductor, without external auxiliary power supply power supply.As a result of nothing
Line transmission module, so without the communication connection of wiring complexity.
The wireless measurement module be additionally provided with power module, voltage signal sampling module, current signal sampling module with
And central processing unit.
The power module is electrically connected with the electric conductor, for the wireless measurement modules with power.
The voltage signal sampling module acquisition, which comes from the voltage signal of the electric conductor and converts it into voltage, adopts
Sample data；The current signal sampling module acquisition, which comes from the current signal of the Rogowski coil and converts it into electric current, adopts
Sample data.
The central processing unit handles the voltage sample data and the current sampling data.
The wireless transport module wirelessly transmits the data handled via the central processing unit.
The wireless measurement module is wirelessly connected to a radio network gateway；The radio network gateway for be connected to data acquisition with
Supervisor control, Cloud Server, or monitored for local.
According to the above various aspects of present disclosure, the shell includes first shell and second shell；
The first shell and the second shell are collectively formed for accommodating the wireless measurement module, the electric conductor
With the space of the Rogowski coil；The outer surface of the shell is formed with the positioning element for being connected to the breaker, from
And ensure that the connection installation of the electric parameter measurement component and the breaker is accurate in place.
According to the above various aspects of present disclosure, the Rogowski coil includes solenoid housing and is fixedly mounted on described
Coil body in solenoid housing；The coil body is provided with coil body port and coil body opening, the electric conductor
It is open across the coil body.
According to the above various aspects of present disclosure, the cable is connected to the coil body port and setting exists
Between module port in the wireless measurement module.
According to the above various aspects of present disclosure, the electric conductor is in the horizontal direction by being fixedly installed on described
In two shells, the electric conductor is in vertical direction by being fixed with the first shell that the second shell is installed together.
According to the above various aspects of present disclosure, the second shell be additionally provided be arranged in parallel relative to each other and
Gusset spaced apart, notch is provided on the gusset, and the electric conductor is arranged in the notch.The Rogowski coil setting
In space between the gusset.
According to the above various aspects of present disclosure, the second shell be additionally provided be arranged in parallel relative to each other and
Partition board spaced apart is come by the baffle interval between the electric conductor being disposed adjacent, and the divider upright is in the muscle
Plate.The setting of the partition board is in order to avoid the crosstalk between each electric conductor.
According to the above various aspects of present disclosure, the second shell is additionally provided with second shell socket and second shell
Body inserted sheet, the second shell is provided on the bottom of the side towards the load lets out arc channel；The second shell is inserted
Seat is inserted in described between letting out arc channel, and the arc channel of letting out ensures that electric arc can normally release, will not be to electric parameter measurement
Component and breaker generate harmful effect.
One end of the electric conductor is located on the second shell socket.The second shell insert part enfeoffment
Close the side towards the load of the second shell.
According to the above various aspects of present disclosure, it is formed with arcuate section between two ends of the electric conductor,
The arcuate section is fastened in the notch, to prevent the electric conductor from being moved in the horizontal direction relative to the second shell
It is dynamic.The arcuate section also extends through the coil body opening.
The electric parameter measurement component realizes the power on/off of component by a dielectric knob, while taking into account dielectric
The requirement of experiment.
According to the electric parameter measurement component of present disclosure as breaker attachment string in major loop, do not need volume
Outer secondary connection, and suitable for the transformation project of fixed cabinet plug pedestal, disk cabinet need not be changed, it is only necessary to by existing
Attachment connection product connect into circuit, to reduce improvement cost.
The Rogowski coil without ferrimagnet is used according to present disclosure, no hysteresis effect is almost nil
Phase error, no magnetic saturation phenomenon, thus measurement range can be from several amperes to the electric current of hundreds of kilo-amperes；It is simple in structure, and and
It is contacted without direct circuit between tested electric current；Response band is wide.Compared with using traditional mutual inductor of ribbon core, Roche line
Circle has measurement range wide, and precision is high, and reliable and stable, response band is wide, while having measurement and relay protection function, volume
Small, light-weight, safety and meet environmental requirement.
There is present disclosure based on Rogowski coil electric current can measure in real time, fast response time, will not be saturated, almost not have
There is the characteristics of phase error, therefore it can be applied to relay protection, silicon controlled rectifier, frequency control, the signals such as electric resistance welding are seriously abnormal
The occasion of change.The accurate measurement of at least 3 times rated current can be provided according to the electric parameter measurement component of present disclosure
(Class1), the current measurement under overload situations and electrical energy measurement mistake are prevented.
So far, in order to which present disclosure detailed description in this can be better understood, and in order in the disclosure
Appearance can preferably be realized the contribution of the prior art, and the disclosure quite widely outlines the interior of present disclosure
Hold.Certainly, the embodiment of present disclosure is described below and will form the theme of appended claims.
Similarly, it would be recognized by those skilled in the art that the design that the disclosure is based on can be easily used as designing it
The basis of its structure, method and system, several purposes for implementing present disclosure.It is important, therefore, that appended right is wanted
It asks it will be understood that including such equivalent structure, as long as they are without departing from the spirit and scope of present disclosure.
Description of the drawings
Present disclosure will be better understood from by following attached drawing those skilled in the art, and more can be clearly
The advantages of embodying present disclosure.Attached drawing described herein rather than all may be used only for the illustration purpose of selected embodiment
Can embodiment and being intended to do not limit scope of the present disclosure.
Fig. 1 is the decomposition for the electric parameter measurement component according to present disclosure embodiment observed from an angle
Figure；
Fig. 2 is the decomposition for the electric parameter measurement component according to present disclosure embodiment observed from another angle
Figure；
Fig. 3 is the exploded view according to the Rogowski coil of present disclosure embodiment；
Fig. 4 is the installation diagram according to the Rogowski coil of present disclosure embodiment；
Fig. 5 is the stereogram according to the second shell of present disclosure embodiment；
Fig. 6 is the circuit diagram according to the wireless measurement module of present disclosure embodiment；
Fig. 7 is the System Application Architecture according to present disclosure embodiment.
Specific implementation mode
The structure of the electric parameter measurement component according to present disclosure embodiment is described in detail below in conjunction with attached drawing.
As depicted in figs. 1 and 2, they show to be surveyed according to the parameters of electric power of present disclosure embodiment from two angles respectively
Measure the exploded view of component.
According to one embodiment of the present disclosure, the electric parameter measurement component includes shell and is accommodated in institute
State wireless measurement module 3 in shell, at least one electric conductor 4, at least one Rogowski coil 5 (Rogowski coil)；Wherein
The electric conductor 4 passes through the Rogowski coil 5, the Rogowski coil 5 to measure the electric current for flowing through the electric conductor 4；The Roche
Coil 5 is connect by cable 6 with the wireless measurement module 3；One end 4-1 of the electric conductor 4 (does not show with load
Go out) connection, another end 4-2 of the electric conductor 4 and subordinate's terminals (not shown) of breaker connect.
Figures 1 and 2 show that 3 Rogowski coils, 3 electric conductors corresponding with 3 Rogowski coils and 3 cables,
Their 3 with the be connected to breaker of electric parameter measurement component are extremely corresponding.
The electric parameter measurement component can also include the connecting terminal (not shown) of the connection neutral conductor, to simultaneous simultaneously
Care for the connection request of 3 poles and 4 pole breakers.The electric parameter measurement component by dielectric knob come realize the energization of component/
Power-off, while taking into account the requirement of dielectric experiment.
According to another embodiment of present disclosure, wireless transport module 3- is provided in the wireless measurement module 3
1, it is used to wirelessly pass via the signal for coming from the Rogowski coil 5 after the wireless measurement resume module
It is defeated.The power supply of the wireless measurement module 3 is directly obtained from the electric conductor 4, without external auxiliary power supply power supply.By
In using wireless transport module, so without the communication connection of wiring complexity.
As shown in fig. 6, the wireless measurement module is additionally provided with power module 3-3, voltage signal sampling module 3-4, electricity
It flows signal sampling module 3-5 and central processing unit 3-6, N represents the neutral conductor, L1/L2/L3 represents corresponding with Rogowski coil
Electric conductor.
The power module 3-3 is electrically connected with the electric conductor 4, for providing electric power to the wireless measurement module 3.
The voltage signal sampling module 3-4 acquisitions come from the voltage signal of the electric conductor 4 and convert it into electricity
Press sampled data.
The current signal that the current signal sampling module 3-5 acquisitions come from the Rogowski coil 5 (is exported with voltage side
Formula is presented, but what is represented is current signal) and convert it into current sampling data.
The central processing unit 3-6 handles the voltage sample data and the current sampling data；It is described
Wireless transport module 3-1 wirelessly transmits the data handled via the central processing unit 3-6.
As shown in fig. 7, the wireless measurement module 3 is wirelessly connected to a radio network gateway 8；The radio network gateway 8 is for connecting
It is connected to data acquisition and supervisor control (SCADA), Cloud Server, or is monitored for local.
The embodiment of scheme in compared with the prior art, present disclosure saves external CT, saves voltage, electric current
Wiring and wiring for communication.The cost of scheme in compared with prior art, the embodiment of present disclosure it is low and
Meet the high-acruracy survey of IEC61557-12Class1.
According to above each embodiment of present disclosure, the shell includes first shell 1 and second shell 2.
The first shell 1 and the second shell 2 are collectively formed for accommodating the wireless measurement module 3, described leading
The space of electric body 4 and the Rogowski coil 5；The outer surface of the shell is formed with the positioning region for being connected to the breaker
Part 2-1, the connection installation to ensure the electric parameter measurement component and the breaker are accurate in place.
According to above each embodiment of present disclosure, as shown in the exploded view of Fig. 3 and the installation diagram of Fig. 4, sieve
Family name's coil 5 includes solenoid housing 5-1 and the coil body 5-2 being fixedly mounted in the solenoid housing 5-1；The coil body
5-2 is provided with coil body port 5-2-2 and coil body opening 5-2-1, and the electric conductor 4 is open across the coil body
5-2-1。
According to above each embodiment of present disclosure, the cable 6 is connected to the coil body port 5-2-2
Between the module port 3-2 being arranged in the wireless measurement module 3.
According to above each embodiment of present disclosure, the electric conductor 4 is in the horizontal direction by being fixedly installed on
It states in second shell 2, the electric conductor 4 is in vertical direction by the first shell 1 that is installed together with the second shell 2
It is fixed.
According to above each embodiment of present disclosure, as shown in figure 5, the second shell 2 be additionally provided with relative to
The gusset 2-2 for being set parallel to each other and being spaced apart, notch 2-2-1 is provided on the gusset, and the electric conductor 4 is arranged described
In notch, the Rogowski coil 5 is arranged in the space between the gusset 2-2.
According to above each embodiment of present disclosure, the second shell 2 is additionally provided with parallel relative to each other set
The partition board 2-3 for setting and being spaced apart is spaced apart between the electric conductor 4 being disposed adjacent, the partition board 2- by the partition board 2-3
3 arrange perpendicular to the gusset 2-2.The setting of the partition board 2-3 is in order to avoid the crosstalk between each electric conductor 4.
According to above each embodiment of present disclosure, as depicted in figs. 1 and 2, the second shell 2 is additionally provided with
Two housing plug 2-4 and second shell inserted sheet 2-5, the second shell 2 are arranged on the bottom of the side towards the load
Arc channel 2-6 is let out, ensures that electric arc can normally release, bad shadow will not be generated to electric parameter measurement component and breaker
It rings.The second shell socket 2-4 is inserted in described let out between the 2-6 of arc channel.
One end of the electric conductor 4 is located on the second shell socket 2-4；The second shell inserted sheet 2-
The side towards the load of the 5 partially enclosed second shells 2.
According to above each embodiment of present disclosure, it is formed between two ends 4-1,4-2 of the electric conductor 4
Arcuate section 4-3, arcuate section 4-3 are fastened in the notch 2-2-1, to prevent the electric conductor 4 in the horizontal direction
It is moved relative to the second shell 2.Arcuate section 4-3 also extends through the coil body opening 5-2-1.The electric conductor 4
Such as be made of copper, two end 4-1,4-2 width is larger, so using the technique of welding or riveting and the arch
Part 4-3 links together, so that it is guaranteed that the size of current carrying area.Certainly, two ends 4-1,4-2 of the electric conductor 4 and
The arcuate section 4-3 can also be integrally formed.
According to the electric parameter measurement component of present disclosure as breaker attachment string in major loop, do not need volume
Outer secondary connection, and suitable for the transformation project of fixed cabinet plug pedestal, disk cabinet need not be changed, it is only necessary to by existing
Attachment connection product connect into circuit, to reduce improvement cost.
The Rogowski coil without ferrimagnet is used according to present disclosure, no hysteresis effect is almost nil
Phase error, no magnetic saturation phenomenon, thus measurement range can be from several amperes to the electric current of hundreds of kilo-amperes；It is simple in structure and and by
It surveys between electric current without the contact of direct circuit；Response band is wide.Compared with using traditional mutual inductor of ribbon core, Rogowski coil
Wide with measurement range, precision is high, and reliable and stable, response band is wide, while having measurement and relay protection function, small,
Light-weight, safety and meet environmental requirement.
There is present disclosure based on Rogowski coil electric current can measure in real time, fast response time, will not be saturated, almost not have
There is the characteristics of phase error, therefore it can be applied to relay protection, silicon controlled rectifier, frequency control, the signals such as electric resistance welding are seriously abnormal
The occasion of change.The accurate measurement of at least 3 times rated current can be provided according to the electric parameter measurement component of present disclosure
(Class1), the current measurement under overload situations and electrical energy measurement mistake are prevented.
With reference to specific embodiment, although present disclosure is illustrated in the specification and illustrated in the drawings, but it should reason
Solution, in the case where not departing from the present disclosure range defined in claim, technical field personnel can make more
Kind changes and the alternative many of element of a variety of equivalents.Moreover, technical characteristic, member between example embodied herein
The combination and collocation of part and/or function are clearly apparent, therefore according to these disclosure of that, technical field personnel
It will appreciate that the technical characteristic in embodiment, element and/or function can optionally be incorporated into another specific embodiment
In, unless the above has other description.In addition, according to the introduction of present disclosure, present disclosure essence is not being departed from
Range, many changes can be made by adapting to special situation or material.Therefore, present disclosure is not limited to attached drawing and is illustrated
Other specific embodiment and described in this description as being at present the best reality contemplated by implementation present disclosure
The specific embodiment of mode is applied, and present disclosure intention includes falling into description above and scope of the appended claims
All embodiments.
Claims (12)
1. a kind of electric parameter measurement component, which is characterized in that the electric parameter measurement component includes shell and is received
Wireless measurement module, at least one electric conductor in the shell, at least one Rogowski coil；Wherein
The electric conductor passes through the Rogowski coil, the Rogowski coil measurement to flow through the electric current of the electric conductor；
The Rogowski coil is connect by cable with the wireless measurement module；
One end of the electric conductor is connected with load, another end of the electric conductor and subordinate's terminals of breaker
Connection.
2. electric parameter measurement component according to claim 1, which is characterized in that
The wireless measurement module is provided with wireless transport module, is used to via after the wireless measurement resume module to come
It is wirelessly transmitted from the signal in the Rogowski coil.
3. electric parameter measurement component according to claim 1, which is characterized in that
The shell includes first shell and second shell；
The first shell and the second shell are collectively formed for accommodating the wireless measurement module, the electric conductor and institute
State the space of Rogowski coil；
The outer surface of the shell is formed with the positioning element for being connected to the breaker, to ensure the parameters of electric power
Measurement assembly and the connection installation of the breaker are accurate in place.
4. electric parameter measurement component according to claim 1, which is characterized in that
The Rogowski coil includes solenoid housing and the coil body that is fixedly mounted in the solenoid housing；
The coil body is provided with coil body port and coil body opening, and the electric conductor is opened across the coil body
Mouthful.
5. electric parameter measurement component according to claim 4, which is characterized in that
The cable is connected to the coil body port and is arranged between the module port of the wireless measurement module.
6. electric parameter measurement component according to claim 3, which is characterized in that the electric conductor is in the horizontal direction by quilt
It is fixed in the second shell, the electric conductor is in vertical direction described in being installed together with the second shell
First shell is fixed.
7. electric parameter measurement component according to claim 6, which is characterized in that
The second shell is additionally provided with the gusset for being arranged in parallel and being spaced apart relative to each other, and slot is provided on the gusset
Mouthful, the electric conductor is arranged in the notch, and the Rogowski coil is arranged in the space between the gusset.
8. electric parameter measurement component according to claim 7, which is characterized in that
The second shell is additionally provided with the partition board for being arranged in parallel and being spaced apart relative to each other, the electric conductor being disposed adjacent
Between come by the baffle interval, the divider upright is in the gusset.
9. electric parameter measurement component according to claim 8, which is characterized in that
The second shell is additionally provided with second shell socket and second shell inserted sheet, and the second shell is towards the load
Side bottom on be provided with and let out arc channel；
The second shell socket is inserted in described between letting out arc channel, and one end of the electric conductor is located at described the
On two housing plugs；
The second shell insert section closes the side towards the load of the second shell.
10. electric parameter measurement component according to claim 7, which is characterized in that
It is formed with arcuate section between two ends of the electric conductor, which is fastened in the notch, to anti-
Only the electric conductor is moved relative to the second shell in the horizontal direction.
11. electric parameter measurement component according to claim 2, which is characterized in that
The wireless measurement module be additionally provided with power module, voltage signal sampling module, current signal sampling module and in
Central processor；
The power module is electrically connected with the electric conductor, for the wireless measurement modules with power；
The voltage signal sampling module acquisition comes from the voltage signal of the electric conductor and converts it into voltage sample number
According to；
The current signal sampling module acquisition comes from the current signal of the Rogowski coil and converts it into current sample
Data；
The central processing unit handles the voltage sample data and the current sampling data；
The wireless transport module wirelessly transmits the data handled via the central processing unit.
12. electric parameter measurement component according to claim 11, which is characterized in that
The wireless measurement module is wirelessly connected to a radio network gateway；
The radio network gateway is monitored for being connected to data acquisition and supervisor control, Cloud Server, or for local.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243330.7A CN108732399A (en) | 2017-04-14 | 2017-04-14 | Electric parameter measurement component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243330.7A CN108732399A (en) | 2017-04-14 | 2017-04-14 | Electric parameter measurement component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108732399A true CN108732399A (en) | 2018-11-02 |
Family
ID=63923764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243330.7A Pending CN108732399A (en) | 2017-04-14 | 2017-04-14 | Electric parameter measurement component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108732399A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203350329U (en) * | 2013-04-27 | 2013-12-18 | 贵州南源电力科技开发有限公司 | Online monitoring device of lighting current state of lighting arrester |
| CN101989767B (en) * | 2010-10-13 | 2013-12-18 | 中电国科(北京)科技有限公司 | Comprehensive measuring and controlling device of high voltage pole tower |
| CN103545101A (en) * | 2013-10-22 | 2014-01-29 | 江苏靖江互感器厂有限公司 | Intelligent electronic current transformer |
| CN204155869U (en) * | 2014-10-21 | 2015-02-11 | 浙江欧亿科技有限公司 | A kind of housing of control and protective switching device main circuit |
| CN104730314A (en) * | 2013-12-23 | 2015-06-24 | 施耐德电器工业公司 | Current sensor with Rogowski coil and a method for manufacturing such a current sensor |
| CN105118750A (en) * | 2015-08-05 | 2015-12-02 | 浙江凯发电气股份有限公司 | Arc striking device of circuit breaker |
| CN204905193U (en) * | 2015-08-05 | 2015-12-23 | 浙江凯发电气股份有限公司 | Arc initiation device of circuit breaker |
| US20160033578A1 (en) * | 2014-03-19 | 2016-02-04 | Fischer Block, Inc. | Test Switch Signal Analyzer |
| CN105467184A (en) * | 2014-09-25 | 2016-04-06 | 弗兰克公司 | Wireless rogowski coil system |
| CN205303391U (en) * | 2015-12-31 | 2016-06-08 | 浙江威利坚科技股份有限公司 | Circuit breaker |
| CN205333779U (en) * | 2016-01-08 | 2016-06-22 | 国网冀北电力有限公司 | Transmission line fault locating on -line monitoring device's loading attachment |
| CN206876746U (en) * | 2017-04-14 | 2018-01-12 | 施耐德电器工业公司 | Electric parameter measurement component |
-
2017
- 2017-04-14 CN CN201710243330.7A patent/CN108732399A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989767B (en) * | 2010-10-13 | 2013-12-18 | 中电国科(北京)科技有限公司 | Comprehensive measuring and controlling device of high voltage pole tower |
| CN203350329U (en) * | 2013-04-27 | 2013-12-18 | 贵州南源电力科技开发有限公司 | Online monitoring device of lighting current state of lighting arrester |
| CN103545101A (en) * | 2013-10-22 | 2014-01-29 | 江苏靖江互感器厂有限公司 | Intelligent electronic current transformer |
| CN104730314A (en) * | 2013-12-23 | 2015-06-24 | 施耐德电器工业公司 | Current sensor with Rogowski coil and a method for manufacturing such a current sensor |
| US20160033578A1 (en) * | 2014-03-19 | 2016-02-04 | Fischer Block, Inc. | Test Switch Signal Analyzer |
| CN105467184A (en) * | 2014-09-25 | 2016-04-06 | 弗兰克公司 | Wireless rogowski coil system |
| CN204155869U (en) * | 2014-10-21 | 2015-02-11 | 浙江欧亿科技有限公司 | A kind of housing of control and protective switching device main circuit |
| CN105118750A (en) * | 2015-08-05 | 2015-12-02 | 浙江凯发电气股份有限公司 | Arc striking device of circuit breaker |
| CN204905193U (en) * | 2015-08-05 | 2015-12-23 | 浙江凯发电气股份有限公司 | Arc initiation device of circuit breaker |
| CN205303391U (en) * | 2015-12-31 | 2016-06-08 | 浙江威利坚科技股份有限公司 | Circuit breaker |
| CN205333779U (en) * | 2016-01-08 | 2016-06-22 | 国网冀北电力有限公司 | Transmission line fault locating on -line monitoring device's loading attachment |
| CN206876746U (en) * | 2017-04-14 | 2018-01-12 | 施耐德电器工业公司 | Electric parameter measurement component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11606695B2 (en) | Communication enabled circuit breakers | |
| US7598724B2 (en) | Flexible current transformer assembly | |
| US7940039B2 (en) | Transformer meter and system for using same | |
| CZ144897A3 (en) | Apparatus for detecting electric discharges within a tested object | |
| GB2487555A (en) | Current transformer with a housing, a shunt circuitry and an output connector | |
| US20140167786A1 (en) | Current Sensor For Power Measurement Applications | |
| US8933689B2 (en) | Device for measuring the electric current flowing in an electric apparatus, said device enabling power measurement, and an electric apparatus comprising same | |
| CN206876746U (en) | Electric parameter measurement component | |
| CN102798838A (en) | Pluggable safety junction box for site calibration of electric energy meter | |
| US3725741A (en) | Differential transformer mounting arrangement particulary for ground fault interrupter apparatus | |
| US20140167787A1 (en) | Branch Circuit Current Monitor | |
| US9810717B2 (en) | Device for measuring at least one electric quantity of a current intended to circulate in an electric apparatus, and assembly comprising such a device | |
| CN109521264B (en) | Digital zero sequence current transformer for pole switch | |
| KR20130096818A (en) | Fixed type mesuring device having split coil | |
| CN104237835A (en) | Wiring detection device for straight-through current transformer | |
| US5825190A (en) | Method and apparatus for measuring a transfer impedance of shielded devices and common mode currents in shieldings | |
| CN108732399A (en) | Electric parameter measurement component | |
| JP4979062B2 (en) | Signal transmission circuit device | |
| WO2019059852A1 (en) | Device and method for measuring electrical current | |
| JP6323778B2 (en) | Distribution board cabinet and distribution board using the same | |
| US20190162786A1 (en) | Measuring device for use in an electric switching device | |
| JP6340718B2 (en) | Internal device for distribution board and distribution board using the same | |
| US11617269B2 (en) | Current measuring device for an electric power protection system | |
| CN203366985U (en) | Novel electronic combined transformer | |
| CN107833736B (en) | Combined high-voltage current transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |
|
| RJ01 | Rejection of invention patent application after publication |