CN110501562A - Transformer core grounding band shows sensor on the spot - Google Patents
Transformer core grounding band shows sensor on the spot Download PDFInfo
- Publication number
- CN110501562A CN110501562A CN201910927190.4A CN201910927190A CN110501562A CN 110501562 A CN110501562 A CN 110501562A CN 201910927190 A CN201910927190 A CN 201910927190A CN 110501562 A CN110501562 A CN 110501562A
- Authority
- CN
- China
- Prior art keywords
- box body
- connection box
- spot
- sensor
- core grounding
- 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
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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
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
Abstract
The invention discloses a kind of transformer core grounding bands to show sensor on the spot, including sequentially connected single-chip microcontroller, A/D sampling module, sensor, charactron, driving circuit and digital signal processor, it further include connection box body and communication module, single-chip microcontroller is separately connected digital signal processor and communication module, single-chip microcontroller, A/D sampling module, sensor, driving circuit, digital signal processor and communication module are located in connection box body, connection box body is cuboid, and charactron is set to the front end face of connection box body.The present invention can be to transformer iron core grounding current and clamp earthing current real-time monitoring, strong antijamming capability, acquisition can be facilitated, monitoring data pass through communication transfer to backstage, possess the function of showing on the spot while realizing on-line monitoring and fault alarm in conjunction with background analysis, creates more convenient and fast malfunction elimination environment to the staff at scene；Modularized design, volume compact is flexible for installation, is conducive to debugging, safe and reliable.
Description
Technical field
The invention belongs to sensor attachment tool structure, the iron core grounding current for power industry power transformer is monitored
Field, and in particular to a kind of transformer core grounding band shows sensor on the spot.
Background technique
When electrical transformer cores two o'clock or multipoint earthing, circulation can be generated in core interior, causes hot-spot, seriously
When will cause iron core localized burn, or even ground strip is made to fuse, leads to iron core electric potential floating, generate discharging fault, serious prestige
Strain depressor reliability service, therefore in the operation of the transformer, energy real-time monitoring transformer core and clamp earthing current are aobvious
It obtains most important.Conventional method, which uses, is similar to the descriptions such as CN107247172A, CN107219381A and CN109387684A
Hand-held clamp on amperemeter measures earth current, the disadvantage is that being easy to be interfered by power frequency magnetic field, and cannot be to ground connection electricity
Stream is accomplished real time on-line monitoring and is shown on the spot.Existing monitoring device unreasonable structural design, installation and debugging are inconvenient.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of transformer core grounding bands to show sensor on the spot, to solve
Deficiency in the prior art.
In order to achieve the above object, the purpose of the present invention is be achieved through the following technical solutions:
A kind of transformer core grounding band is provided and shows sensor on the spot, wherein including sequentially connected single-chip microcontroller, A/D
Sampling module, sensor, charactron, driving circuit and digital signal processor further include connecting box body and communication module, described
Single-chip microcontroller is separately connected the digital signal processor and the communication module, the single-chip microcontroller, the A/D sampling module, institute
Sensor, the driving circuit, the digital signal processor and the communication module is stated to be located in the connection box body, it is described
Connection box body is cuboid, and the charactron is set to the front end face of the connection box body.
Above-mentioned transformer core grounding band shows sensor on the spot, wherein the left side and right side of the connection box body
The left side of the connection stomidium set with opposite, the connection box body is equipped with connector.
Above-mentioned transformer core grounding band shows sensor on the spot, wherein the edge of the front end face of the connection box body
Equipped with assembly frame.
Above-mentioned transformer core grounding band shows sensor on the spot, wherein the cross section size of the charactron with it is described
The front end face size for connecting box body is consistent.
The beneficial effect of technical solution of the present invention is:
-- it can be to transformer iron core grounding current and clamp earthing current real-time monitoring, strong antijamming capability, signal output
For standard 4-20mA analog current signal, acquisition can be facilitated, monitoring data are by communication transfer to backstage, in conjunction with background analysis reality
Now on-line monitoring and fault alarm while, possess the function of showing on the spot, create more convenient and fast failure to the staff at scene
Check environment；
-- use modularized design, can according to different demands using generic connectivity box and show on the spot connect box connected
It connects；
-- volume compact, it is flexible for installation, it is conducive to debugging, it is safe and reliable.
Detailed description of the invention
Fig. 1 a, Fig. 1 b and Fig. 1 c are respectively perspective view of the invention, bottom view and rearview；
Fig. 2 is the internal schematic diagram of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
Referring to shown in Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 2, transformer core grounding band of the present invention shows that sensor includes on the spot
Sequentially connected single-chip microcontroller 1, A/D sampling module 2, sensor 3, charactron 4, driving circuit 5 and digital signal processor 6, also
Digital signal processor 6 and communication module 8, single-chip microcontroller 1, A/ are separately connected including connection box body 7 and communication module 8, single-chip microcontroller 1
D sampling module 2, sensor 3, driving circuit 5, digital signal processor 6 and communication module 8 are located in connection box body 7, connect box
Body 7 is cuboid, and charactron 4 is set to the front end face of connection box body 7.The left side and right side for connecting box body 7 have it is opposite and
If connection stomidium 9, connection box body 7 left side be equipped with connector 10.The edge for connecting the front end face of box body 7 is equipped with dress
With frame 11.In a preferred approach, the cross section size of charactron 4 is consistent with the connection front end face size of box body 7.
In use, iron core grounding to be shown to sensor sleeve loaded on transformer core grounding line or copper bar, makes iron core on the spot
Ground line or copper bar pass through sensor, are then fixed on transformer base sensor with the screw of four M6X12, use boat
Empty connector connects the reserved jack in iron core grounding sensor, while it is (+/- to be equipped with the high performance electric power supply of bipolar output
Both 12VDC or +/- 15VDC all can) be sensor power.It is exported, and can facilitated using the 4-20mA analog current of standard
Other acquisition devices are accessed, so that convenient interconnect with various communication interfaces.
Analog signal is switched to digital signal by measurement sensor, passes to A/ through overmodulated circuit, filter circuit, amplifying circuit
D converter carries out the conversion of analog signal, converts digital signal for the analog signal received and is sent to single-chip microcontroller 1, single-chip microcontroller 1
Obtained signal is sent to digital signal processor 6 (DSP) and carries out digital filtering, FFT calculating, frequency analysis etc., and will most
Whole sampled data, analysis result upload to the display of charactron 4 by driving circuit 5 and complete sampled measurements.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention, right
For those skilled in the art, it should can appreciate that and all replace with being equal made by description of the invention and diagramatic content
It changes and obviously changes obtained scheme, should all be included within the scope of the present invention.
Claims (4)
1. a kind of transformer core grounding band shows sensor on the spot, which is characterized in that including sequentially connected single-chip microcontroller, A/D
Sampling module, sensor, charactron, driving circuit and digital signal processor further include connecting box body and communication module, described
Single-chip microcontroller is separately connected the digital signal processor and the communication module, the single-chip microcontroller, the A/D sampling module, institute
Sensor, the driving circuit, the digital signal processor and the communication module is stated to be located in the connection box body, it is described
Connection box body is cuboid, and the charactron is set to the front end face of the connection box body.
2. transformer core grounding band as described in claim 1 shows sensor on the spot, which is characterized in that the connection box body
Left side and right side have connection stomidium that is opposite and setting, and the left side of the connection box body is equipped with connector.
3. transformer core grounding band as described in claim 1 shows sensor on the spot, which is characterized in that the connection box body
The edge of front end face is equipped with assembly frame.
4. transformer core grounding band as described in claim 1 shows sensor on the spot, which is characterized in that the cross of the charactron
Cross-sectional sizes are consistent with the connection front end face size of box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927190.4A CN110501562A (en) | 2019-09-27 | 2019-09-27 | Transformer core grounding band shows sensor on the spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927190.4A CN110501562A (en) | 2019-09-27 | 2019-09-27 | Transformer core grounding band shows sensor on the spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110501562A true CN110501562A (en) | 2019-11-26 |
Family
ID=68593073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910927190.4A Pending CN110501562A (en) | 2019-09-27 | 2019-09-27 | Transformer core grounding band shows sensor on the spot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110501562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973659A (en) * | 2023-06-27 | 2023-10-31 | 杭州欣美成套电器制造有限公司 | Sensing device for switch cabinet and switch cabinet control system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654160U (en) * | 2010-04-07 | 2010-11-24 | 北京光耀电力自动化有限公司 | Transformer core grounding AC-DC on-line monitoring device |
| CN103163364A (en) * | 2013-03-21 | 2013-06-19 | 辽宁省电力有限公司电力科学研究院 | Wireless monitoring device and monitoring method for grounding current of transformer core/clamp |
| CN107219381A (en) * | 2017-06-22 | 2017-09-29 | 国网浙江义乌市供电公司 | It is a kind of can split measurement Multipurpose electric flow table |
| CN107247172A (en) * | 2017-06-22 | 2017-10-13 | 国网浙江义乌市供电公司 | It is a kind of can split measurement clamp on amperemeter |
| CN108241087A (en) * | 2018-03-05 | 2018-07-03 | 中铁二院工程集团有限责任公司 | Transformer iron core grounding current monitoring device |
| CN108918951A (en) * | 2018-08-23 | 2018-11-30 | 四川多成电力工程安装有限责任公司 | A kind of monitoring system of transformer core current |
| CN109387684A (en) * | 2018-09-26 | 2019-02-26 | 谢蔓蓉 | A kind of high-precision clamp on amperemeter to be prolonged the service life based on nested mode |
-
2019
- 2019-09-27 CN CN201910927190.4A patent/CN110501562A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654160U (en) * | 2010-04-07 | 2010-11-24 | 北京光耀电力自动化有限公司 | Transformer core grounding AC-DC on-line monitoring device |
| CN103163364A (en) * | 2013-03-21 | 2013-06-19 | 辽宁省电力有限公司电力科学研究院 | Wireless monitoring device and monitoring method for grounding current of transformer core/clamp |
| CN107219381A (en) * | 2017-06-22 | 2017-09-29 | 国网浙江义乌市供电公司 | It is a kind of can split measurement Multipurpose electric flow table |
| CN107247172A (en) * | 2017-06-22 | 2017-10-13 | 国网浙江义乌市供电公司 | It is a kind of can split measurement clamp on amperemeter |
| CN108241087A (en) * | 2018-03-05 | 2018-07-03 | 中铁二院工程集团有限责任公司 | Transformer iron core grounding current monitoring device |
| CN108918951A (en) * | 2018-08-23 | 2018-11-30 | 四川多成电力工程安装有限责任公司 | A kind of monitoring system of transformer core current |
| CN109387684A (en) * | 2018-09-26 | 2019-02-26 | 谢蔓蓉 | A kind of high-precision clamp on amperemeter to be prolonged the service life based on nested mode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973659A (en) * | 2023-06-27 | 2023-10-31 | 杭州欣美成套电器制造有限公司 | Sensing device for switch cabinet and switch cabinet control system |
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| 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: 20191126 |
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| RJ01 | Rejection of invention patent application after publication |