CN107907735A - Self-energizing current measurement and analytical equipment - Google Patents
Self-energizing current measurement and analytical equipment Download PDFInfo
- Publication number
- CN107907735A CN107907735A CN201711022211.5A CN201711022211A CN107907735A CN 107907735 A CN107907735 A CN 107907735A CN 201711022211 A CN201711022211 A CN 201711022211A CN 107907735 A CN107907735 A CN 107907735A
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- Prior art keywords
- coil
- analytical equipment
- housing
- energy
- iron core
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Links
- 238000005259 measurement Methods 0.000 title claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000007787 solid Substances 0.000 claims abstract description 5
- 230000010354 integration Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- H02J5/005—
Abstract
The present invention provides a kind of self-energizing current measurement and analytical equipment, belongs to current detecting field, solves the problems, such as that current monitoring is inconvenient, be of limited application and install or dismantling operation is complicated.One end and one end of the second semicircular ring housing of first semicircular ring housing of solenoid housing are connected by shaft, and the other end can pass through snap lock；Measuring coil and taking energy coil are coaxially fixed in solenoid housing, and the skeleton of measuring coil and the iron core of taking energy coil are formed by the annular solid of two semicircles；Coil is wrapped on skeleton and iron core and is bridged in skeleton and iron core one end；Energy and analytical equipment is taken to be fixed in its housing；Signal wire both ends respectively with an output terminal of measuring coil and take can and the signal input part of measurement analysis device connect；Power cord both ends respectively with an output terminal of taking energy coil and take can and measurement analysis device power input connect；The ground terminal of another output terminal of measuring coil, taking energy coil iron core and another output terminal of taking energy coil with taking energy and measurement analysis device connects.
Description
Technical field
The present invention relates to current detection technology field, more particularly to a kind of self-energizing current measurement and analytical equipment.
Background technology
At present, can be by Rogowski coil device come real in electric system when the electric current to a certain equipment is monitored
It is existing.Since Rogowski coil device is only capable of collection current signal, and it cannot be for further processing to current signal, if necessary to electricity
Stream signal is for further processing, usually the passive integrator by installing passive filter and poor-performing additional on Rogowski coil
To realize.However, passive filter or passive integrator are usually only capable of doing current signal preliminary treatment, further signal
Processing and analysis need to be transmitted to processor progress by signal cable.
When being transmitted and being for further processing to signal and analysis, power supply power supply is required to, and in many occasions, electricity
Source is difficult near installation to measuring coil, it is necessary to be realized by external power supply, and the not only monitoring to electric current brings inconvenience, and
And cause Rogowski coil to be simply possible to use in the place there are external power supply, it is of limited application.In addition, to existing Rogowski coil
, it is necessary to disconnect the cable of equipment under test when device is installed, by Rogowski coil device be installed on equipment under test cable or
On casing, dismantling operation similarly, causes installation or dismantling operation complicated.
The content of the invention
Present invention aim to address at present by Rogowski coil device monitoring electric current when, the monitoring to electric current is brought not
Just, cause Rogowski coil be of limited application and install or the technical problem of dismantling operation complexity, there is provided a kind of self-energizing electricity
Flow measurement and analytical equipment.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of self-energizing current measurement and analytical equipment, including solenoid housing, measuring coil, taking energy coil take and can and analyze
Device, power cord, signal wire, some piece-root grafting ground wires, shaft and take can and analytical equipment housing, wherein：
The solenoid housing is made of the first semicircular ring housing and the second semicircular ring housing, one end of the first semicircular ring housing
It is connected with one end of the second semicircular ring housing by shaft, the other end of the first semicircular ring housing is another with the second semicircular ring housing
One end can pass through snap lock；Measuring coil and taking energy coil are coaxially fixed in solenoid housing, and the skeleton of measuring coil and
The iron core of taking energy coil is formed by the annular solid of two semicircles；The coil of measuring coil is wrapped on skeleton, and measuring coil
Coil skeleton one end bridge；The coil of taking energy coil is wrapped on iron core, and the coil of taking energy coil iron core one end across
Connect；Energy and analytical equipment housing is taken to be located on the lateral surface of the second semicircular ring housing；Take can and analytical equipment be fixed on take can and
In analytical equipment housing；One end of signal wire and measuring coil output terminal connect, the other end of signal wire and take can and
The signal input part connection of measurement analysis device；One end of power cord and taking energy coil output terminal connect, power cord
The other end is with taking the power input of energy and measurement analysis device to be connected；Another output terminal of measuring coil, taking energy coil
Another of iron core and taking energy coil output terminal are by being grounded with taking the ground terminal of energy and measurement analysis device to be connected.
Alternatively, it is described to take energy and analytical equipment to include power supply unit and analytic unit；Power supply unit includes rectification module
With the first filter module, the signal input part of rectification module and the other end of power cord connect, the signal output part of rectification module
It is connected with the signal input part of the first filter module；The analytic unit includes integration module, the second filter module and A/D conversions
Module, the signal input part of integration module and the other end of signal wire connect, the signal output part of integration module and the second filtering
The signal input part connection of module, the signal output part of the second filter module are connected with the signal input part of A/D modular converters；The
The signal output part of the one filter module and power input of integration module, the power input of the second filter module and A/D turn
The power input of mold changing block is all connected with.
Alternatively, self-energizing current measurement and analytical equipment further include several fastening gaskets, and several fastening gaskets
It is located on the medial surface of the first semicircular ring housing and the second semicircular ring housing.
Alternatively, the measuring coil and taking energy coil are coaxially fixed as inner-outer sleeve and put or mounted on top.
Alternatively, the solenoid housing and take can and the material of analytical equipment housing be metal or insulating materials.
Alternatively, the skeleton of the measuring coil is iron core, and between the iron core of measuring coil and the iron core of taking energy coil
Air gap be 0.01~10mm.
Alternatively, the skeleton of the measuring coil is plastic material.
The beneficial effects of the invention are as follows：
Can be along the coil case of shaft folding and the bone for the measuring coil being made of the annular solid of two semicircles by setting
The iron core of frame and taking energy coil so that when installing or removing self-energizing current measurement and analytical equipment, without removing tested set
Standby wiring, it is easy to operate as long as opening coil case can be connected across in the circuit of equipment under test.In addition, taken by setting
Can coil, measuring coil, signal wire, power cord and take can and analytical equipment etc. so that the self-energizing current measurement and analysis dress
Put and transmission, processing and analysis to signal can be achieved without external power supply, be not only convenient for carrying out the monitoring of electric current, and can be with
Suitable for being capable of providing power supply or the place of power supply cannot be provided, have wide range of applications.Therefore, compared with background technology, this hair
It is bright to have the advantages that to install or remove monitoring that is convenient, easy to operate, being convenient for electric current and have wide range of applications.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the coiling schematic diagram of measuring coil or taking energy coil.
Fig. 3 is the circuit composition schematic diagram for taking energy and analytical equipment.
Embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
As depicted in figs. 1 and 2, the self-energizing current measurement in the present embodiment and analytical equipment, including solenoid housing, measurement
Coil 2, taking energy coil 3, take can and analytical equipment 4, power cord 5, signal wire 6, some piece-root grafting ground wires 7, shaft 9 and take can and point
Analysis apparatus housing 11, wherein：
The solenoid housing is made of the first semicircular ring housing 1 and the second semicircular ring housing 10, the first semicircular ring housing 1
One end is connected with one end of the second semicircular ring housing 10 by shaft 9, the other end and the second semicircular ring of the first semicircular ring housing 1
The other end of housing 10 can pass through snap lock；Measuring coil 2 and taking energy coil 3 are coaxially fixed in solenoid housing, and are measured
The skeleton of coil 2 and the iron core of taking energy coil 3 are formed by the annular solid of two semicircles；The coil of measuring coil 2 is wrapped in bone
On frame, and the coil of measuring coil 2 is bridged in skeleton one end；The coil of taking energy coil 3 is wrapped on iron core, and taking energy coil 3
Coil iron core one end bridge；Energy and analytical equipment housing 11 is taken to be located on the lateral surface of the second semicircular ring housing 10；Take energy
And analytical equipment 4 is fixed on and takes in energy and analytical equipment housing 11；One end of signal wire 6 and an output terminal of measuring coil 2
Connection, the other end of signal wire 6 is with taking the signal input part of energy and measurement analysis device 4 to be connected；One end of power cord 5 is with taking energy
The output terminal connection of coil 3, the other end of power cord 5 is with taking the power input of energy and measurement analysis device 4 to be connected；Survey
Measure another output terminal of another output terminal of coil 2, the iron core of taking energy coil 3 and taking energy coil 3 by ground wire 7 with
Take energy and the connection of the ground terminal of measurement analysis device 4.
Specifically, a part of coil of measuring coil 2 is wound on the skeleton in the first semicircular ring housing 1, measurement
Another part coil of coil 2 is wound on the skeleton in the second semicircular ring housing 10, and two parts line of measuring coil 2
Circle is in the opening and closing place of skeleton (at shaft 9) bridging；A part of coil of taking energy coil 3 is wound in positioned at the first hemi-toroidal shell
On iron core in body 1, another part coil of taking energy coil 3 is wound on the iron core in the second semicircular ring housing 10, and
Two parts coil of taking energy coil 3 is in the opening and closing place of iron core (at shaft 9) bridging；Two output terminals of measuring coil 2 and
Two output terminals of taking energy coil 3 are respectively located on the coil in the first semicircular ring housing 1 and the second semicircular ring housing 10.
Alternatively, it is described to take energy and analytical equipment 4 to include power supply unit and analytic unit；Power supply unit includes rectification module
With the first filter module, the signal input part of rectification module is connected with the other end of power cord 5, the signal output part of rectification module
It is connected with the signal input part of the first filter module；The analytic unit includes integration module, the second filter module and A/D conversions
Module, the signal input part of integration module are connected with the other end of signal wire 6, the signal output part of integration module and the second filtering
The signal input part connection of module, the signal output part of the second filter module are connected with the signal input part of A/D modular converters；The
The signal output part of the one filter module and power input of integration module, the power input of the second filter module and A/D turn
The power input of mold changing block is all connected with.
Wherein, rectification module is used to the electric energy that taking energy coil 3 senses being converted to direct current；First filter module is used to filter
Except the noise in the direct current after rectification.The voltage of the signal output part output of first filter module can be in analytic unit
Each module provides DC voltage.Integration module be used for measuring coil 2 sense current changing signal integrate, with obtain by
The electric current of slowdown monitoring circuit, the second filter module are used to filter out impurity, and A/D modular converters are used to alternating current being converted to direct current
Stream, in order to analyze the electric current in circuit-under-test.
Alternatively, self-energizing current measurement and analytical equipment further include several fastening gaskets 8, and several fastening gaskets
8 are located on the medial surface of the first semicircular ring housing 1 and the second semicircular ring housing 10.Fastening gasket 8 is used to survey in self-energizing electric current
Amount and analytical equipment are fixed on power transmission cable or casing of equipment under test etc..
Alternatively, the measuring coil 2 and taking energy coil 3 are coaxially fixed as inner-outer sleeve and put or mounted on top, specific position
The relation of putting can be depending on the size of installation space.
Alternatively, the solenoid housing and take can and the material of analytical equipment housing 11 be metal or insulating materials.
Alternatively, the skeleton of the measuring coil 2 is iron core, i.e., measuring coil 2 and taking energy coil 3 are the line of ribbon core
Circle.Air gap between the iron core of measuring coil 2 and the iron core of taking energy coil 3 is 0.01~10mm, to prevent core sataration.Work as survey
When amount coil 2 includes iron core, the iron core of measuring coil 2 is with taking the ground terminal in energy and measurement analysis device 4 to be connected.
Alternatively, the skeleton of the measuring coil 2 is plastic material, i.e., described measuring coil 2 is air core coil, described to take
Energy coil 3 is cored.It is air core coil by setting measuring coil, it can be ensured that the self-energizing current measurement and analytical equipment energy
Enough it is suitable for the higher occasion of measurement accuracy.
At work, the first semicircular ring housing 1 of coil case and 10 other end of the second semicircular ring housing are set by the present invention
The buckle put is opened, and the power transmission cable of equipment under test or casing etc. are placed in the inner circle of coil case, closes buckle to lock
Tight self-energizing current measurement and analytical equipment, and fastening gasket 8 is compressed to ensure that self-energizing current measurement and analysis fill
Putting to move.Next, the zero-potential point of the ground terminal taken in energy and measurement analysis device 4 and equipment under test is connected.
On the basis of this, when electric current is flowed through at self-energizing current measurement and analytical equipment center, the self-energizing current measurement and analytical equipment
The electric signal measured by measuring coil 2 takes energy and measurement analysis device 4, the electricity that taking energy coil 3 senses by the input of signal wire 6
Can be by power cord 5 to taking energy and measurement analysis device 4 to power, it is achieved thereby that measuring obtained electric signal to measuring coil 2
It is transmitted, handle and analyzes.By the iron core of measuring coil 2 and the iron core of taking energy coil 3 and take and can and measure by ground wire 7
Ground terminal connection on analytical equipment 4, and when in use connect the zero-potential point of the ground terminal and equipment under test, to prevent iron
Core induces excessive voltage and damages self-energizing current measurement and analytical equipment with floating.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, but the present invention is not limited thereto.For those skilled in the art, the essence of the present invention is not being departed from
In the case of refreshing and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (7)
1. a kind of self-energizing current measurement and analytical equipment, it is characterised in that including solenoid housing, measuring coil (2), take energy line
Circle (3), take can and analytical equipment (4), power cord (5), signal wire (6), some piece-root grafting ground wires (7), shaft (9) and take can and divide
Analysis apparatus housing (11), wherein：
The solenoid housing is made of the first semicircular ring housing (1) and the second semicircular ring housing (10), the first semicircular ring housing (1)
One end be connected with one end of the second semicircular ring housing (10) by shaft (9), the other end of the first semicircular ring housing (1) and
The other end of two semicircular ring housings (10) can pass through snap lock；Measuring coil (2) and taking energy coil (3) are coaxially fixed on coil
In housing, and the skeleton of measuring coil (2) and the iron core of taking energy coil (3) are formed by the annular solid of two semicircles；Measure line
The coil of circle (2) is wrapped on skeleton, and the coil of measuring coil (2) is bridged in skeleton one end；The coil of taking energy coil (3) twines
It is wound on iron core, and the coil of taking energy coil (3) is bridged in iron core one end；Take can and analytical equipment housing (11) be located at the second half
On the lateral surface of annulus housing (10)；Energy and analytical equipment (4) is taken to be fixed on and take in energy and analytical equipment housing (11)；Signal wire
(6) one end is connected with an output terminal of measuring coil (2), and the other end of signal wire (6) is with taking energy and measurement analysis device
(4) signal input part connection；One end of power cord (5) is connected with an output terminal of taking energy coil (3), power cord (5)
The other end is with taking the power input of energy and measurement analysis device (4) to be connected；Another output terminal of measuring coil (2), take energy
The iron core of coil (3) and another output terminal of taking energy coil (3) are by being grounded (7) and taking energy and measurement analysis device
(4) ground terminal connection.
2. self-energizing current measurement according to claim 1 and analytical equipment, it is characterised in that described take and can analyze dress
Putting (4) includes power supply unit and analytic unit；Power supply unit includes rectification module and the first filter module, the signal of rectification module
Input terminal is connected with the other end of power cord (5), the signal input part of the signal output part of rectification module and the first filter module
Connection；The analytic unit includes integration module, the second filter module and A/D modular converters, the signal input part of integration module
It is connected with the other end of signal wire (6), the signal output part of integration module is connected with the signal input part of the second filter module, the
The signal output part of two filter modules is connected with the signal input part of A/D modular converters；The signal output part of first filter module
The power input of power input, the second filter module and the power input of A/D modular converters with integration module connect
Connect.
3. self-energizing current measurement according to claim 1 and analytical equipment, it is characterised in that further include several fastenings
Gasket (8), and several fastening gaskets (8) are located at the medial surface of the first semicircular ring housing (1) and the second semicircular ring housing (10)
On.
4. self-energizing current measurement according to claim 1 and analytical equipment, it is characterised in that the measuring coil (2)
Inner-outer sleeve is coaxially fixed as with taking energy coil (3) to put or mounted on top.
5. self-energizing current measurement according to claim 1 and analytical equipment, it is characterised in that the solenoid housing and take
The material of energy and analytical equipment housing (11) is metal or insulating materials.
6. self-energizing current measurement according to claim 1 and analytical equipment, it is characterised in that the measuring coil (2)
Skeleton be iron core, and the air gap between the iron core of measuring coil (2) and the iron core of taking energy coil (3) is 0.01~10mm.
7. self-energizing current measurement according to claim 1 and analytical equipment, it is characterised in that the measuring coil (2)
Skeleton be plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022211.5A CN107907735A (en) | 2017-10-26 | 2017-10-26 | Self-energizing current measurement and analytical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022211.5A CN107907735A (en) | 2017-10-26 | 2017-10-26 | Self-energizing current measurement and analytical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107907735A true CN107907735A (en) | 2018-04-13 |
Family
ID=61841912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711022211.5A Pending CN107907735A (en) | 2017-10-26 | 2017-10-26 | Self-energizing current measurement and analytical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107907735A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415956A (en) * | 2019-08-30 | 2019-11-05 | 济南铂晶电子科技有限公司 | Combined type takes electrical measurement mutual inductor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825654A (en) * | 2010-04-26 | 2010-09-08 | 重庆大学 | Self energy supply lightning current detection system |
| CN102445588A (en) * | 2011-11-23 | 2012-05-09 | 中国人民解放军海军工程大学 | Short-time slowly-varying high-current measuring device based on (printed circuit board) PCB type Rogowski coil |
| CN102707135A (en) * | 2012-06-29 | 2012-10-03 | 重庆大学 | Lightning current online monitoring system of overhead transmission line based on differential ring |
| CN203732608U (en) * | 2014-03-03 | 2014-07-23 | 广州思泰信息技术有限公司 | Closed magnetic circuit current collecting device for overhead line fault indicator |
| CN104133103A (en) * | 2014-07-31 | 2014-11-05 | 国网浙江余姚市供电公司 | Device for monitoring overhead wire load currents |
| CN105445531A (en) * | 2014-08-14 | 2016-03-30 | 北京南瑞智芯微电子科技有限公司 | Power taking and sampling integrated current monitoring device |
| CN205749748U (en) * | 2016-07-07 | 2016-11-30 | 国网山东省电力公司东阿县供电公司 | A kind of power supply station supply line's monitoring device |
| CN206208974U (en) * | 2016-11-28 | 2017-05-31 | 泉州亿兴电力有限公司 | A kind of current measuring device |
-
2017
- 2017-10-26 CN CN201711022211.5A patent/CN107907735A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825654A (en) * | 2010-04-26 | 2010-09-08 | 重庆大学 | Self energy supply lightning current detection system |
| CN102445588A (en) * | 2011-11-23 | 2012-05-09 | 中国人民解放军海军工程大学 | Short-time slowly-varying high-current measuring device based on (printed circuit board) PCB type Rogowski coil |
| CN102707135A (en) * | 2012-06-29 | 2012-10-03 | 重庆大学 | Lightning current online monitoring system of overhead transmission line based on differential ring |
| CN203732608U (en) * | 2014-03-03 | 2014-07-23 | 广州思泰信息技术有限公司 | Closed magnetic circuit current collecting device for overhead line fault indicator |
| CN104133103A (en) * | 2014-07-31 | 2014-11-05 | 国网浙江余姚市供电公司 | Device for monitoring overhead wire load currents |
| CN105445531A (en) * | 2014-08-14 | 2016-03-30 | 北京南瑞智芯微电子科技有限公司 | Power taking and sampling integrated current monitoring device |
| CN205749748U (en) * | 2016-07-07 | 2016-11-30 | 国网山东省电力公司东阿县供电公司 | A kind of power supply station supply line's monitoring device |
| CN206208974U (en) * | 2016-11-28 | 2017-05-31 | 泉州亿兴电力有限公司 | A kind of current measuring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415956A (en) * | 2019-08-30 | 2019-11-05 | 济南铂晶电子科技有限公司 | Combined type takes electrical measurement mutual inductor |
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Application publication date: 20180413 |
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