CN110412330A - A kind of detection device of cable metal shield circulating current - Google Patents
A kind of detection device of cable metal shield circulating current Download PDFInfo
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- CN110412330A CN110412330A CN201910832269.9A CN201910832269A CN110412330A CN 110412330 A CN110412330 A CN 110412330A CN 201910832269 A CN201910832269 A CN 201910832269A CN 110412330 A CN110412330 A CN 110412330A
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- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 239000002184 metal Substances 0.000 title claims abstract description 27
- 230000006698 induction Effects 0.000 claims abstract description 49
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
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- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- 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
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
-
- 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
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
This application discloses a kind of detection devices of cable metal shield circulating current, including electric device and running gear；Electric device includes: the induction coil coupled with cable, for carrying out electromagnetic induction with the circulation of cable to generate induced current；Temperature measurer at induction coil is set, for detecting the temperature value at induction coil；The MCU connecting with temperature measurer is searched determine corresponding circulation value in the preset database for the default coil turn according to temperature value and induction coil；The corresponding relationship of temperature value, default coil turn and circulation value is stored in presetting database.The temperature for the induction coil that the application is coupled by detection with cable, and then it is searched in the presetting database for being stored with related corresponding relationship and confirms corresponding circulation value, and the running gear based on setting can effectively implement multiple spot detection, therefore, the application not only considerably reduces manual operation cost, detection efficiency and convenience are improved, but also effectively ensures operational safety.
Description
Technical field
This application involves technical field of electric power detection, in particular to a kind of detection device of cable metal shield circulating current.
Background technique
Cable plays an important role in the electric energy transmission of today's society.Generally, one layer of sealing is surrounded by outside cable
Metal sheath, to prevent moisture immersion etc..Cable is during transmitting alternating current, with the change in the excited magnetic field of alternating current
Change, induced voltage and induction circulation can be generated on metal sheath.And metal sheath circulation will affect the normal operation of cable, very
To initiation line fault.Therefore, it is very heavy for being detected to the circulation of cable metal sheath to prevent trouble saving
It wants and necessary.
It is often detected in the prior art using some artificial split-core type meter methods, not only inefficiency, takes time and effort, Er Qiean
Full property is poor, especially some high-voltage transmission cables.In consideration of it, providing a kind of scheme for solving above-mentioned technical problem, it has been
Those skilled in the art need concern.
Summary of the invention
The detection device for being designed to provide a kind of cable metal shield circulating current of the application, to effectively improve detection effect
Rate and convenience, and ensure safety when detecting simultaneously.
In order to solve the above technical problems, this application discloses a kind of detection device of cable metal shield circulating current, including electricity
Device of air and running gear；The electric device includes:
The induction coil coupled with the cable, for carrying out electromagnetic induction with the circulation of the cable to generate induced electricity
Stream；
Temperature measurer at the induction coil is set, for detecting the temperature value at the induction coil；
The MCU being connect with the temperature measurer, for the default coil turn according to the temperature value and the induction coil
Number is searched determine corresponding circulation value in the preset database；The temperature value, described pre- is stored in the presetting database
If the corresponding relationship of coil turn and the circulation value.
Optionally, the induction coil is provided with coil turn and adjusts tap；
The electric device further includes the input module connecting with the MCU, described pre- after updating adjusting for inputting
If coil turn.
Optionally, the input module is also used to receive the device parameter of input；
The MCU is specifically used for according to the temperature value, the default coil turn and the device parameter, default
It is searched in database and determines corresponding circulation value.
Optionally, the device parameter includes following any one or any combination:
Cable data, induction coil parameter, load current parameter, environmental parameter.
Optionally, fuse is serially connected in the induction coil.
Optionally, the electric device further includes the alarm module coupled with the fuse, in the fuse
It alarms after fusing.
Optionally, the alarm module further includes charhing unit.
Optionally, the running gear includes following any one or any combination:
Idler wheel, crawler belt, track, wing.
The detection device of cable metal shield circulating current provided herein includes electric device and running gear；The electricity
Device of air includes: the induction coil coupled with the cable, for carrying out electromagnetic induction with the circulation of the cable to generate sense
Answer electric current；Temperature measurer at the induction coil is set, for detecting the temperature value at the induction coil；With the thermometric
The MCU of instrument connection is looked into the preset database for the default coil turn according to the temperature value and the induction coil
It looks for and determines corresponding circulation value；The temperature value, the default coil turn and the ring are stored in the presetting database
The corresponding relationship of flow valuve.
As it can be seen that the temperature for the induction coil that the application is coupled by detection with cable, and then it is being stored with related corresponding pass
It is searched in the presetting database of system and confirms corresponding circulation value, and the running gear based on setting can effectively implement multiple spot inspection
It surveys, therefore, the application not only considerably reduces manual operation cost, improves detection efficiency and convenience, but also effectively
Ensure operational safety.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the prior art and the embodiment of the present application, below will to the prior art and
Attached drawing to be used is needed to make brief introduction in the embodiment of the present application description.Certainly, in relation to the attached drawing of the embodiment of the present application below
A part of the embodiment in only the application of description is not paying creativeness to those skilled in the art
Under the premise of labour, other attached drawings can also be obtained according to the attached drawing of offer, other accompanying drawings obtained also belong to the application
Protection scope.
Fig. 1 is a kind of structural block diagram of the detection device of cable metal shield circulating current disclosed in the embodiment of the present application.
Specific embodiment
The core of the application is to provide a kind of detection device of cable metal shield circulating current, to effectively improve detection effect
Rate and convenience, and ensure safety when detecting simultaneously.
In order to which technical solutions in the embodiments of the present application is more clearly and completely described, below in conjunction with this Shen
Please attached drawing in embodiment, technical solutions in the embodiments of the present application is introduced.Obviously, described embodiment is only
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Currently, it is often detected in the prior art using some artificial split-core type meter methods, not only inefficiency, takes time and effort,
And safety is poor, especially some high-voltage transmission cables.In consideration of it, this application provides a kind of cable metal shield circulating currents
Detection device, can effectively solve the above problems.
Shown in Figure 1, the embodiment of the present application discloses a kind of detection device of cable metal shield circulating current, mainly includes
Electric device 100 and running gear 200；Electric device 100 includes:
The induction coil 101 coupled with cable, for carrying out electromagnetic induction with the circulation of cable to generate induced current；
Temperature measurer 102 at induction coil 101 is set, for detecting the temperature value at induction coil 101；
The MCU103 being connect with temperature measurer 102, for the default coil turn according to temperature value and induction coil 101,
It searches in the preset database and determines corresponding circulation value；Temperature value, default coil turn and ring are stored in presetting database
The corresponding relationship of flow valuve.
It should be pointed out that the detection device of cable metal shield circulating current provided by the embodiment of the present application is that one kind can be certainly
The equipment of row detection cable metal sheath circulation, wherein electric device 100 is used for examinations operation；Running gear 200 is used for
Control the movement of detection device.
It will be readily appreciated by those skilled in the art that in view of the length situation of cable in practical application, the circulation of cable
Detection usually requires multiple spot detection.In this way, detection device can be voluntarily using running gear 200 set by the embodiment of the present application
Movement is to implement multiple spot detection.
As a kind of specific embodiment, running gear 200 may include following any one or any combination: idler wheel,
Crawler belt, track, wing.Specifically, those skilled in the art voluntarily can select the type of running gear 200 according to the actual situation,
Robot or crawler type detection machine are detected to assemble detection device disclosed in the embodiment of the present application for roller type
People, rail mounted detection robot, detection unmanned plane etc., the application does not further limit this.
Electric device 100 for detecting circulation mainly includes induction coil 101, temperature measurer 102 and MCU103,
In, induction coil 101 is coupled with cable, and induced current relevant to circulation is generated based on electromagnetic induction；Once and the line of induction
Induced current is generated in circle 101, will certainly also be generated heat, the temperature and sense to ambient radiation thermal energy, at induction coil 101
Answer the size of electric current directly related, and then related to circulation.
Certainly, in the case where the material of induction coil 101 is certain, temperature value at induction coil 101 also with the line of induction
The default coil turn of circle 101 is related, therefore, for the induction coil 101 of a certain model, temperature value and default coil turn
Number, circulation value have corresponding relationship, that is, circulation value and default coil turn determine the size of temperature value, if circulation value
With default coil turn it is known that can then determine corresponding temperature value, on the contrary, if temperature value and default coil turn
Know, then can determine corresponding circulation value.
In the embodiment of the present application, presetting database is stored in MCU103, which specifically can be according to a large amount of samples
This test data and generate, be stored with temperature value, default coil turn, circulation value three corresponding relationship.Work as utilization as a result,
When detection device that the embodiment of the present application is passed through carries out circulation detection, can based on the temperature value that temperature measurer 102 is measured with
And set default coil turn is searched in the preset database, the corresponding circulation got from presetting database
Value is circulation value of the cable in current detection point.
Those skilled in the art can according to practical situations the storage organization of designed, designed presetting database.Reference table
1, table 1 illustratively lists a kind of partial data of presetting database provided by the embodiment of the present application.Wherein, I1 indicates ring
Flow valuve, T indicate that temperature value, N indicate default coil turn.
Table 1
The detection device of cable metal shield circulating current provided by the embodiment of the present application includes that electric device 100 and walking fill
Set 200；Electric device 100 includes: the induction coil 101 coupled with cable, for the circulation of cable carry out electromagnetic induction with
Generate induced current；Temperature measurer 102 at induction coil 101 is set, for detecting the temperature value at induction coil 101；With
The MCU103 that temperature measurer 102 connects, for the default coil turn according to temperature value and induction coil 101, in preset data
It is searched in library and determines corresponding circulation value；It is corresponding with circulation value that temperature value, default coil turn are stored in presetting database
Relationship.
As it can be seen that the temperature for the induction coil 101 that the application is coupled by detection with cable, and then it is being stored with related correspondence
Searched in the presetting database of relationship and confirm corresponding circulation value, and the running gear 200 based on setting can effectively implement it is more
Point detection, therefore, the application not only considerably reduces manual operation cost, improves detection efficiency and convenience, but also
Effectively ensure operational safety.
On the basis of the above, in the detection device of cable metal shield circulating current provided by the embodiment of the present application,
As a kind of specific embodiment, induction coil 101 is provided with coil turn and adjusts tap；Electric device 100 further include with
The input module of MCU103 connection, for inputting the default coil turn updated after adjusting.
Specifically, in the detection device of cable metal shield circulating current provided by the embodiment of the present application, it is based on coil turn
The introducing of tap is adjusted, the default coil turn of induction coil 101 can also carry out subsequent change after initial setting.And
And it is adaptable, it also is provided with input module for MCU103 in the embodiment of the present application, can be used for inputting to MCU103 modified
Default coil turn.
On the basis of the above, in the detection device of cable metal shield circulating current provided by the embodiment of the present application,
As a kind of specific embodiment, input module is also used to receive the device parameter of input；MCU103 be specifically used for according to temperature value,
Default coil turn and device parameter, search determine corresponding circulation value in the preset database.
Specifically, the detection device of cable metal shield circulating current provided in the embodiment of the present application, is not limited to work and exists
Under fixed a certain kind device parameter state, but plurality of devices parameter state can be replaced.Wherein, as a kind of specific implementation
Example, device parameter may include following any one or any combination: cable data, 101 parameter of induction coil, load current
Parameter, environmental parameter.
Further, cable data may particularly include voltage class, rated current, model, the length, metal sheath of cable
Material etc.；101 parameter of induction coil may particularly include coil diameter, area coil, texture of coil, drift etc.；Environment ginseng
Number may particularly include environment temperature, ambient humidity.
Device parameter influences whether circulation value, presets the corresponding relationship between coil turn, temperature value, for example, in circulation
Value, default coil turn are distinguished in identical situation, general using temperature value corresponding to the thicker induction coil 101 of diameter
It can be lower than temperature value corresponding to the thinner induction coil 101 of diameter.
On the basis of the above, in the detection device of cable metal shield circulating current provided by the embodiment of the present application,
As a kind of specific embodiment, fuse is serially connected in induction coil 101.
Specifically, using fuse, temperature can be prevented excessively high, to further increase operational safety.
On the basis of the above, in the detection device of cable metal shield circulating current provided by the embodiment of the present application,
As a kind of specific embodiment, electric device 100 further includes the alarm module coupled with fuse, for after fuse blows
It alarms.
On the basis of the above, in the detection device of cable metal shield circulating current provided by the embodiment of the present application,
As a kind of specific embodiment, alarm module further includes charhing unit.
Specifically, in order to improve the sustainable usability of alarm module, the embodiment of the present application is provided with charhing unit for it,
To charge in time for it.
Each embodiment is described in a progressive manner in the application, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For equipment disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
.
It should be noted that in present specification, the relational terms of such as " first " and " second " etc are used merely to
One entity or operation and another entity or operate is distinguished, without necessarily requiring or implying these entities or
There are any actual relationship or orders between person's operation.In addition, the terms "include", "comprise" or its any other
Variant is intended to non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only
It including those elements, but also including other elements that are not explicitly listed, or further include for this process, method, object
Product or the intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...",
It is not precluded in the process, method, article or apparatus that includes the element that there is also other identical elements.
Technical solution provided herein is described in detail above.Specific case used herein is to this Shen
Principle and embodiment please is expounded, the present processes that the above embodiments are only used to help understand and its
Core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the application principle
Under, can also to the application, some improvement and modification can also be carried out, these improvement and modification are also fallen into the protection scope of the application.
Claims (8)
1. a kind of detection device of cable metal shield circulating current, which is characterized in that including electric device and running gear；The electricity
Device of air includes:
The induction coil coupled with the cable, for carrying out electromagnetic induction with the circulation of the cable to generate induced current；
Temperature measurer at the induction coil is set, for detecting the temperature value at the induction coil；
The MCU being connect with the temperature measurer, for the default coil turn according to the temperature value and the induction coil, In
It is searched in presetting database and determines corresponding circulation value；The temperature value, the default line are stored in the presetting database
Enclose the corresponding relationship of the number of turns and the circulation value.
2. detection device according to claim 1, which is characterized in that the induction coil is provided with coil turn and adjusts pumping
Head；
The electric device further includes the input module connecting with the MCU, for inputting the default line updated after adjusting
Enclose the number of turns.
3. detection device according to claim 2, which is characterized in that the equipment that the input module is also used to receive input
Parameter；
The MCU is specifically used for according to the temperature value, the default coil turn and the device parameter, in preset data
It is searched in library and determines corresponding circulation value.
4. detection device according to claim 3, which is characterized in that the device parameter include following any one or
Any combination:
Cable data, induction coil parameter, load current parameter, environmental parameter.
5. detection device according to claim 1, which is characterized in that be serially connected with fuse in the induction coil.
6. detection device according to claim 5, which is characterized in that the electric device further includes and the fuse coupling
The alarm module of conjunction, for alarming after the fuse blows.
7. detection device according to claim 6, which is characterized in that the alarm module further includes charhing unit.
8. detection device according to any one of claims 1 to 7, which is characterized in that the running gear includes following
Meaning one or any combination:
Idler wheel, crawler belt, track, wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832269.9A CN110412330A (en) | 2019-09-04 | 2019-09-04 | A kind of detection device of cable metal shield circulating current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832269.9A CN110412330A (en) | 2019-09-04 | 2019-09-04 | A kind of detection device of cable metal shield circulating current |
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| CN201910832269.9A Pending CN110412330A (en) | 2019-09-04 | 2019-09-04 | A kind of detection device of cable metal shield circulating current |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022047601A1 (en) * | 2020-09-01 | 2022-03-10 | 杭州巨骐信息科技股份有限公司 | System for monitoring circulating current of high-voltage cable metal sheath |
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