CN207318640U - A kind of switch cabinet partial discharge tests system - Google Patents
A kind of switch cabinet partial discharge tests system Download PDFInfo
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- CN207318640U CN207318640U CN201721348555.0U CN201721348555U CN207318640U CN 207318640 U CN207318640 U CN 207318640U CN 201721348555 U CN201721348555 U CN 201721348555U CN 207318640 U CN207318640 U CN 207318640U
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- sensor
- signal
- switch cabinet
- partial discharge
- compound sensor
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- 238000012360 testing method Methods 0.000 title claims abstract description 52
- 150000001875 compounds Chemical class 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 24
- 230000003993 interaction Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000007405 data analysis Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- -1 2-2 Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model belongs to power domain, is related to a kind of switch cabinet partial discharge test system, including：Compound sensor, is bonded with switchgear, test point signal on detection switch cabinet；Signal condition unit, connects the compound sensor, receives the output signal of compound sensor, signal is handled；A/D converter, connects the signal condition unit, changes the output signal of signal condition unit into data-signal；Master controller, input terminal connect the A/D converter, receive the output signal of A/D converter, carry out data processing；Display, connects master controller, shows the test data of master controller；Machine interactive unit, connects master controller, test pattern is made choice.The utility model, using multi-sensor data analysis and integration technology, is realized switch cabinet partial discharge and quickly, accurately tested by TEV signals and ultrasonic signal on same position on compound sensor test switch cabinet.
Description
Technical field
The utility model belongs to power domain, more particularly to a kind of switch cabinet partial discharge test system.
Background technology
In the accident that distribution network operation occurs, it is mostly due to caused by the insulation faults such as insulation degradation, it is this kind of
Failure avoids the generation of major accident by detecting where the shelf depreciation situation of power equipment can effectively scent a hidden danger.
The shelf depreciation of switchgear generally has three kinds of characteristic signals, is TEV signals, ELECTROMAGNETIC RADIATION SIGNATURE and ultrasound respectively
Ripple signal.In test by the contrast test to three of the above signal to determine the generation of partial discharge whether.Due to the generation of partial discharge
Not necessarily persistently occur, there is the possibility discontinuously occurred, after the completion of with a kind of sensor test, then change a kind of sensor
Or instrument test, discharge information perhaps will be lost, this is one；If being also exactly to measure these three signals respectively,
It can't see the correlation of these three signals when partial discharge occurs；The discharge signal of different instrument tests due to hardware circuit design not
The same, difference of data processing method, the feature of its discharge signal just have difference.These factors can all influence partial discharge detection processing
As a result, cause certain difficulty to making accurate judgment.
The content of the invention
In order to realize that carrying out fast and accurately inspection to switch cabinet partial discharge tests.The utility model provides a kind of switchgear
Partial discharge testing system.
The purpose of this utility model is achieved through the following technical solutions：
A kind of switch cabinet partial discharge tests system, including：
Compound sensor, is bonded with switchgear, test point signal on detection switch cabinet；
Signal condition unit, connects the compound sensor, the output signal of compound sensor is received, at signal
Reason；
A/D converter, connects the signal condition unit, changes the output signal of signal condition unit into data-signal；
Master controller, input terminal connect the A/D converter, receive the output signal of A/D converter, carry out at data
Reason；
Display, connects master controller, shows the test data of master controller；
Man-machine interaction unit, connects master controller, test pattern is made choice.
Further, the compound sensor includes sonac, TEV sensors, compound sensor housing, cover board 2-4
And compound sensor wire connection terminal, the compound sensor housing one side carry and sonac and TEV sensor knots
The hole that structure coordinates, sonac and TEV sensors one end inserted in hole from compound sensor enclosure interior, sonac and
TEV sensors other end connection sensor wire terminal one end, sensor wire terminal are inserted in cover board, and cover board is installed on compound
Sensor shell body side surface is positioned opposite with driving sonac and TEV sensors.
Further, when the compound sensor carries out the partial discharge test of switchgear, sonac hole is attached to cabinet section and connects
At seam, TEV sensors are attached to cabinet metal covering.
Further, the sonac uses R15I-AST Sensor sonacs, working frequency 80-200kHz.
Further, the TEV sensors are the bilayer copper clad plate of 1mm thickness.
The beneficial effects of the utility model：
1st, the utility model uses compound sensor technology, can receive two features caused by shelf depreciation at the same time
Signal, i.e. TEV and ultrasonic signal, the generation of switch cabinet partial discharge can be more accurately judged by mutually confirming.
2nd, the utility model uses multisensor Data Fusion technology advantage, is shown in a manner of data, figure and curve etc.
Show the phase relation of both signals, magnitude relation, can be quick out side whether occur, the conclusion such as intensity size,
Test more efficient.
3rd, the utility model uses compound sensor technical testing switchgear, can more fast and accurately carry out switch
The inspection of cabinet partial discharge works, and saves human cost.
4th, the test system data of the utility model is stable, test result is directly perceived.
Brief description of the drawings
Fig. 1 is the module frame chart of the test system of the utility model；
Fig. 2 is the front view of the utility model compound sensor；
Fig. 3 is the attached view of the utility model compound sensor.
Wherein：2-1, sonac, 2-2, TEV sensor, 2-3, compound sensor housing, 2-4, cover board, 2-5, biography
Sensor wire connection terminal.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific embodiment described herein is only explaining
The utility model, is not used to limit the utility model.
A kind of switch cabinet partial discharge tests system, including：Compound sensor, signal condition unit, A/D converter, main control
Device, display and man-machine interaction unit.Compound sensor is bonded with switchgear, test point signal on detection switch cabinet；Signal
Conditioning unit connects the compound sensor, receives the output signal of compound sensor, signal is handled；A/D converter
The signal condition unit is connected, changes the output signal of signal condition unit into data-signal；Master controller input terminal connects
The A/D converter, receives the output signal of A/D converter, carries out data processing；Display connects master controller, display master
The test data of controller；Man-machine interaction unit connects master controller, and test pattern is made choice.
Compound sensor include sonac 2-1, TEV sensor 2-2, compound sensor housing 2-3, cover board 2-4 with
And compound sensor wire connection terminal 2-5, the compound sensor housing 2-3 are the cuboid knot that each angle is round and smooth chamfering
Structure, compound sensor housing 2-3 one sides are provided with the hole with sonac 2-1 and TEV sensor 2-2 respective outer side edges, ultrasound
Sensor 2-1 and TEV is inserted in hole sensor 2-2 one end from compound sensor enclosure interior, and sonac 2-1 and TEV are passed
Sensor 2-2 other ends connection sensor wire terminal 2-5 one end, sensor wire terminal 2-5 are inserted in cover board 2-4, cover board 2-4
It is positioned opposite with opening sonac 2-1 and TEV sensor 2-2 installed in compound sensor housing 2-3 sides.The compound biography
When sensor carries out the partial discharge test of switchgear, sonac 2-1 holes are attached to cabinet section seam crossing, and TEV sensors 2-2 is attached to cabinet
Body metal covering.It is compound sensor structure diagram referring to Fig. 2 in the present embodiment, sonac 2-1 uses R15I-AST
Sensor sonac 2-1, working frequency 80-200kHz；TEV sensors 2-2 uses the bilayer copper clad plate of 1mm thickness, multiple
Close sensor housing 2-3 and use ABS engineering plastics；Cover board 2-4 uses ABS engineering plastics.
Compound sensor is to combine sonac 2-1 and TEV sensor 2-2 designs in a housing.Carry out
During the partial discharge test of high-tension switch cabinet, by sonac 2-1 opening plasters in cabinet section seam crossing, and TEV sensors 2-2 is pasted
On metal covering, sonac 2-1 can receive the ultrasonic signal overflowed from cabinet gap, and TEV sensors 2-2 can
To receive the TEV signals on metal decking.
The test system of the utility model uses compound sensor, solves the stationary problem of discharge signal, that is, is switching
When partial discharge occurs for cabinet, TEV signals and ultrasonic signal can be detected simultaneously by, two kinds of signals mutually confirm, and there is one
Fixed phase relation, it becomes possible to the generation of switch cabinet partial discharge certainly.Improve the accuracy for judging that partial discharge occurs；Using same
Instrument test, the hardware circuit of test signal are identical so that signal acquisition and data analysis are established on the basis of same test；
Compound sensor is employed, same position when partial discharge occurs, two kinds of different discharge signals at same moment can be tested,
That is TEV signals and ultrasonic signal.Instrument by data processing and fusion method can be obtained by both signals time domain,
Frequency domain and strength information, and shown in a manner of data, figure and curve etc..Compound sensor and Data fusion technique are switchgear
Partial discharge test brought up to a new height.
The course of work of the test system of the utility model, the TEV of a test point on compound sensor detection switch cabinet
And ultrasonic signal, the signal that signal condition unit detects compound sensor is converted into data after being handled through A/D to be believed
Number, then transfer to master controller to handle.Master controller passes through data processing, and test result is sent to display screen, passes through human-computer interaction
Unit can make choice test pattern, constitute switch cabinet partial discharge live testing above.The practical invention of the utility model is using again
The technical advantage and multi-sensor data analysis and integration technology of sensor are closed, realizes the synchronization of switch cabinet partial discharge characteristic signal
Test, the Partial discharge signal information that can be detected at the more same test point same moment, by instrument by two kinds of signals
Data processing and data fusion are carried out, the phase relation for showing both signals is shown in a manner of data, figure and curve etc.,
Magnitude relation, whether can quickly showing that partial discharge occurs, the conclusion of intensity size.Switch cabinet partial discharge is realized quickly, accurately to survey
Examination.
The above description is merely a specific embodiment, when cannot limit the scope implemented of the present invention with this, it is all according to
The equivalent variations and modification that the present invention is made, should all belong to protection scope of the present invention.
Claims (5)
1. a kind of switch cabinet partial discharge tests system, it is characterised in that including：
Compound sensor, is bonded with switchgear, test point signal on detection switch cabinet；
Signal condition unit, connects the compound sensor, receives the output signal of compound sensor, signal is handled；
A/D converter, connects the signal condition unit, changes the output signal of signal condition unit into data-signal；
Master controller, input terminal connect the A/D converter, receive the output signal of A/D converter, carry out data processing；
Display, connects master controller, shows the test data of master controller；
Man-machine interaction unit, connects master controller, test pattern is made choice.
2. switch cabinet partial discharge test system according to claim 1, it is characterised in that the compound sensor includes ultrasound and passes
Sensor, TEV sensors, compound sensor housing, cover board and compound sensor wire connection terminal, the compound sensor housing one
Side carries the hole coordinated with sonac and TEV sensor constructions, sonac and TEV sensors one end from compound biography
Sensor enclosure interior is inserted in hole, and sonac connects sensor wire terminal one end, sensor with the TEV sensor other ends
Wire connection terminal is inserted in cover board, and it is opposite with driving sonac and TEV sensors that cover board is installed on compound sensor housing side
Arrangement.
3. switch cabinet partial discharge test system according to claim 2, it is characterised in that the compound sensor carries out switchgear
Partial discharge test when, sonac hole is attached to cabinet section seam crossing, and TEV sensors are attached to cabinet metal covering.
4. switch cabinet partial discharge test system according to claim 2, it is characterised in that the sonac uses R15I-
AST Sensor sonacs, working frequency 80-200kHz.
5. switch cabinet partial discharge test system according to claim 2, it is characterised in that the TEV sensors are 1mm thickness
Bilayer copper clad plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721348555.0U CN207318640U (en) | 2017-10-19 | 2017-10-19 | A kind of switch cabinet partial discharge tests system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721348555.0U CN207318640U (en) | 2017-10-19 | 2017-10-19 | A kind of switch cabinet partial discharge tests system |
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| Publication Number | Publication Date |
|---|---|
| CN207318640U true CN207318640U (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721348555.0U Expired - Fee Related CN207318640U (en) | 2017-10-19 | 2017-10-19 | A kind of switch cabinet partial discharge tests system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850244A (en) * | 2019-11-11 | 2020-02-28 | 国网湖南省电力有限公司 | Local discharge defect time domain map diagnosis method, system and medium based on deep learning |
-
2017
- 2017-10-19 CN CN201721348555.0U patent/CN207318640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110850244A (en) * | 2019-11-11 | 2020-02-28 | 国网湖南省电力有限公司 | Local discharge defect time domain map diagnosis method, system and medium based on deep learning |
| CN110850244B (en) * | 2019-11-11 | 2022-03-11 | 国网湖南省电力有限公司 | Local discharge defect time domain map diagnosis method, system and medium based on deep learning |
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