CN110514971A - Oil-filled Cable End state of insulation filed detection system and method - Google Patents
Oil-filled Cable End state of insulation filed detection system and method Download PDFInfo
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- CN110514971A CN110514971A CN201910831156.7A CN201910831156A CN110514971A CN 110514971 A CN110514971 A CN 110514971A CN 201910831156 A CN201910831156 A CN 201910831156A CN 110514971 A CN110514971 A CN 110514971A
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- cable end
- oil
- filled cable
- sensing unit
- detection system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to electrician's detection technique fields, more specifically to Oil-filled Cable End state of insulation filed detection system and method.The system comprises: sensing unit generates status information for measuring for tested Oil-filled Cable End internal state；Measuring rod, for protruding into sensing unit inside Oil-filled Cable End；Message handler, the status information for generating for sensing unit are analyzed and processed, and obtain analysis result；The sensing unit is mounted on measuring rod, is connected with message handler.The present invention can be detected accurately for Oil-filled Cable End state of insulation, and detection efficiency is high.
Description
Technical field
The present invention relates to electrician's detection technique fields, examine more specifically to Oil-filled Cable End state of insulation scene
Examining system and method.
Background technique
Insulating oil is filled as the oil-filled terminal of dielectric with its mature manufacturing process and operating experience, in high-voltage electricity
Occupy sizable use ratio in cable terminal always, insulating oil correlation properties research is always the research heat of domestic and foreign scholars
Point.However, in system operation, due to the effect by extraneous factors such as oxygen, humidity, high temperature, strong electrical field and impurity
The electric property of filling insulating oil in cable termination will gradually aging, the increase of cable termination runing time can make the old of insulating oil
Change degree is gradually aggravated, and the insulation performance of terminal is caused to be greatly reduced, so as to cause cable termination fever even insulation breakdown.
CIGRE (international conference on large HV electric systems) working group to during -2005 years 2000, the end of voltage class 51kV-400kV
The deterioration of insulating oil performance causes failure to account for 20% or more in the fault statistics of end, and the performance quality of terminal interior insulation oil has been constituted seriously
Restrict one of the influence factor of the general safety operation of cable run terminal fault.It is examined both at home and abroad in the defect of oil-filled terminal at present
Survey aspect and carried out extensive work, including shelf depreciation, earth current and infrared live live testing, by outdoor environment and
The influence of cable long transmission line, existing means cannot reliably, intuitively show the state of insulation inside cable termination.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the drawbacks of the prior art, providing Oil-filled Cable End insulation shape
State filed detection system and method can be detected accurately for Oil-filled Cable End state of insulation, and detection efficiency
It is high.
The technical solution adopted by the present invention to solve the technical problems is: on the one hand, construction Oil-filled Cable End insulation shape
State filed detection system, comprising:
Sensing unit generates status information for measuring for tested Oil-filled Cable End internal state；
Measuring rod, for protruding into sensing unit inside Oil-filled Cable End；
Message handler, the status information for generating for sensing unit are analyzed and processed, and obtain analysis result；
The sensing unit is mounted on measuring rod, is connected with message handler.
Further, the system also includes:
Wireless communication module, the status information for generating sensing unit are sent to message handler；
The wireless communication module is wirelessly connected with message handler.
Further, the system also includes:
Lead-out wire, the status information for generating sensing unit are sent to wireless communication module；
The lead-out wire is mounted on measuring rod；
The sensing unit is connected by lead-out wire with wireless communication module.
Yet further, further includes:
Limiter, for mutually fixing measuring rod and the top flange of tested Oil-filled Cable End；
The limiter is mounted on measuring rod.
In the above-mentioned technical solutions, the measuring rod is telescopic rod, and the length of the measuring rod and tested oil-filled cable are whole
End internal depth matches.
In the above-mentioned technical solutions, there are three the sensing units, it is respectively as follows: the first sensing unit, the second sensing unit
With third sensing unit；
After measuring rod is mutually fixed with tested Oil-filled Cable End:
First sensing unit is located at the top inside tested Oil-filled Cable End；
Second sensing unit is located inside tested Oil-filled Cable End close to the middle part of stress cone；
The third sensing unit is located at the bottom inside tested Oil-filled Cable End.
Preferably, each sensing unit includes: temperature sensor, humidity sensor and gas sensor.
In the above-mentioned technical solutions, the message handler is also used to point of tested Oil-filled Cable End internal state
Analysis result is shown；
And information warning as the result is shown is analyzed according to described.
On the other hand, a kind of Oil-filled Cable End state of insulation in-situ check and test method is constructed, comprising:
Successively the shielding case of tested Oil-filled Cable End, top flange are opened；
Measuring rod is protruded into inside tested Oil-filled Cable End, is mutually fixed measuring rod with top flange by limiter；
The sensing unit is directed to tested Oil-filled Cable End internal state and measures, and generates status information；
The status information is transferred to wireless communication module by lead-out wire；
The status information is forwarded to message handler by the wireless communication module；
The status information that the message handler is generated for sensing unit is analyzed and processed, and obtains analysis result.
Further, described successively to open the shielding case of tested Oil-filled Cable End, top flange, before further include:
Confirm that the Oil-filled Cable End state of insulation filed detection system is in running order.
In the present invention, it is detected, will be sensed with detection bar single for the Oil-filled Cable End of doubtful existing defects
Member is protruded into inside the Oil-filled Cable End and is detected, and obtains status information.Then, message handler is according to above-mentioned status information
It is analyzed and processed, obtains analysis result.Therefore, the present invention has the advantages that accuracy of judgement, visual and clear, detection efficiency is high
Implement the present invention, has the advantages that
1, testing result is digital information, and testing result is intuitive and reliable；
2, it carries and in-site installation is convenient；
3, the step of detection has been standardized, detection efficiency is greatly improved.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of present system；
Mounting structure schematic diagram when Fig. 2 is work of the embodiment of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
As illustrated in fig. 1 and 2, Oil-filled Cable End state of insulation filed detection system of the present invention, comprising:
Sensing unit 1 generates status information for measuring for tested Oil-filled Cable End internal state；
Measuring rod 3, for protruding into sensing unit 1 inside Oil-filled Cable End；
Message handler 6, the status information for generating for sensing unit 1 are analyzed and processed, and obtain analysis result；
The sensing unit 1 is mounted on measuring rod 3, is connected with message handler 6.
The system also includes:
Wireless communication module 5, the status information for generating sensing unit 1 are sent to message handler 6；
The wireless communication module 5 is wirelessly connected with message handler 6.
Lead-out wire 2, the status information for generating sensing unit 1 are sent to wireless communication module 5；
The lead-out wire 2 is mounted on measuring rod 3；
The sensing unit 1 is connected by lead-out wire 2 with wireless communication module 5.
Limiter 4, for fixing measuring rod 3 and 8 phase of top flange of tested Oil-filled Cable End；
The limiter 4 is mounted on measuring rod 3.
In the present embodiment, for the measuring rod 3 for fixing, protecting sensing unit 1 and lead-out wire 2, material is to have centainly
One of plastics, metal or rubber of hardness or a variety of segmentations are constituted, and length will be matched with product to be tested, product to be tested compared with
Telescopic structure can also be used when long.4 sets of the limiter is outside measuring rod 3, for the fixation of measuring rod 3, be plasticity or
Elastic material, using the interface enclasping force fixation measuring bar 3 with measuring rod 3 in the position for being tested oil-filled terminal.
The measuring rod 3 is telescopic rod, the length of the measuring rod 3 and tested Oil-filled Cable End internal depth phase
Match.
There are three the sensing units 1, and it is single to be respectively as follows: the first sensing unit 11, the second sensing unit 12 and third sensing
Member 13；
After measuring rod 3 is mutually fixed with tested Oil-filled Cable End:
First sensing unit 11 is located at the top inside tested Oil-filled Cable End；
Second sensing unit 12 is located inside tested Oil-filled Cable End close to the middle part of stress cone 9；
The third sensing unit 13 is located at the bottom inside tested Oil-filled Cable End.
Each sensing unit 1 includes: temperature sensor, humidity sensor and gas sensor.
The message handler 6 is also used to show the analysis result of tested Oil-filled Cable End internal state；
And information warning as the result is shown is analyzed according to described.
In the present embodiment, the sensing unit 1 is used to detect the status information inside Oil-filled Cable End, typically often
A sensing unit can be by including that temperature, humidity and gas sensor are constituted.The lead-out wire 2 is used for each sensing unit 1
Connection and information transmitting.The wireless communication module 5 is with 3 physical connection of measuring rod, the state for detecting each sensing unit 1
Information is sent to message handler 6.The message handler 6 has display, analysis and warning function, for showing, at analysis
Status information is managed, analysis result and information warning are provided.Message handler 6 is to show information warning based on the analysis results.If by
Surveying certain index in Oil-filled Cable End inside is normally that then message handler 6 provides normal information；If certain index exceeding standard, needs
Message handler 6 is wanted to provide the information warning beyond mark.
It is exclusively used in the detection method of the Oil-filled Cable End state of insulation filed detection system, comprising:
Successively the shielding case 7 of tested Oil-filled Cable End, top flange 8 are opened；
Measuring rod 3 is protruded into inside tested Oil-filled Cable End, is consolidated measuring rod 3 and 8 phase of top flange by limiter 4
It is fixed；
The sensing unit 1 is directed to tested Oil-filled Cable End internal state and measures, and generates status information；
The status information is transferred to wireless communication module 5 by lead-out wire 2；
The status information is forwarded to message handler 6 by the wireless communication module 5；
The status information that the message handler 6 is generated for sensing unit 1 is analyzed and processed, and obtains analysis result.
It is described successively to open the shielding case 7 of tested Oil-filled Cable End, top flange 8, before further include:
Confirm that the Oil-filled Cable End state of insulation filed detection system is in running order.
In the present embodiment, first confirm that the Oil-filled Cable End state of insulation filed detection system is in work shape
State is opened the detection hole of the Oil-filled Cable End shielding case 7 of doubtful existing defects, top flange 8 with detection hole, then
Measuring rod 3 is protruded into inside Oil-filled Cable End, is fixed in top flange 8 by limiter 4, three sensing units 11,12,
13 information that will test are connected to wireless communication module 5 by lead-out wire 2, then are sent to information by wireless communication module 5
Device 6 is managed, message handler 6 analyzes the information received, shown and alarmed, and removes wiring after completing detection, cleaning is existing
, detection terminates.
The example method that come that the present invention will be described in detail described is enumerated below:
Step 1: confirming that the Oil-filled Cable End state of insulation filed detection system is in running order；
Step 2: the Oil-filled Cable End shielding case 7 of doubtful existing defects, top flange 8 or detection hole are opened；
Step 3: the measuring rod 3 protrudes into inside Oil-filled Cable End, by limiter be fixed on pot head or
In top flange 8；
Step 4: the information that the sensing unit 1 will test is connected to wireless communication module 5 by lead-out wire 2, then by
Wireless communication module 5 is sent to message handler 6；
Step 5: message handler 6 analyzes the information received, shown and is alarmed；
Step 6: removing wiring, site clearing, detection terminates.
The present embodiment measurement data is that Physics eigenvectors, the testing results such as temperature, moisture and gas content are digital letter
Breath, testing result are intuitive and reliable；The telescopic measuring rod that the present embodiment uses, carries and in-site installation is convenient；The present embodiment institute
The method stated, is greatly improved detection efficiency at the step of having standardized detection.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of Oil-filled Cable End state of insulation filed detection system characterized by comprising
Sensing unit (1) generates status information for measuring for tested Oil-filled Cable End internal state；
Measuring rod (3), for protruding into sensing unit (1) inside Oil-filled Cable End；
Message handler (6), the status information for generating for sensing unit (1) are analyzed and processed, and obtain analysis result；
The sensing unit (1) is mounted on measuring rod (3), is connected with message handler (6).
2. Oil-filled Cable End state of insulation filed detection system according to claim 1, which is characterized in that further include:
Wireless communication module (5), for the status information that sensing unit (1) generates to be sent to message handler (6)；
The wireless communication module (5) is wirelessly connected with message handler (6).
3. Oil-filled Cable End state of insulation filed detection system according to claim 2, which is characterized in that further include:
Lead-out wire (2), for the status information that sensing unit (1) generates to be sent to wireless communication module (5)；
The lead-out wire (2) is mounted on measuring rod (3)；
The sensing unit (1) is connected by lead-out wire (2) with wireless communication module (5).
4. Oil-filled Cable End state of insulation filed detection system according to claim 3, which is characterized in that further include:
Limiter (4), for mutually fixing measuring rod (3) and the top flange (8) of tested Oil-filled Cable End；
The limiter (4) is mounted on measuring rod (3).
5. Oil-filled Cable End state of insulation filed detection system according to claim 1, which is characterized in that the measurement
Bar (3) is telescopic rod, and length and the tested Oil-filled Cable End internal depth of the measuring rod (3) match.
6. Oil-filled Cable End state of insulation filed detection system according to claim 1, which is characterized in that the sensing
There are three units (1), is respectively as follows: the first sensing unit (11), the second sensing unit (12) and third sensing unit (13)；
After measuring rod (3) is mutually fixed with tested Oil-filled Cable End:
First sensing unit (11) is located at the top inside tested Oil-filled Cable End；
Second sensing unit (12) is located at the middle part inside tested Oil-filled Cable End close to stress cone (9)；
The third sensing unit (13) is located at the bottom inside tested Oil-filled Cable End.
7. Oil-filled Cable End state of insulation filed detection system according to claim 6, which is characterized in that each sensing
Unit (1) all includes: temperature sensor, humidity sensor and gas sensor.
8. Oil-filled Cable End state of insulation filed detection system according to claim 1, which is characterized in that the information
Processor (6) is also used to show the analysis result of tested Oil-filled Cable End internal state；
And information warning as the result is shown is analyzed according to described.
9. a kind of be exclusively used in Oil-filled Cable End state of insulation filed detection system described in any one of claim 4 to 8
Detection method characterized by comprising
Successively the shielding case (7) of tested Oil-filled Cable End, top flange (8) are opened；
Measuring rod (3) is protruded into inside tested Oil-filled Cable End, by limiter (4) by measuring rod (3) and top flange (8)
It is mutually fixed；
The sensing unit (1) is directed to tested Oil-filled Cable End internal state and measures, and generates status information；
The status information is transferred to wireless communication module (5) by lead-out wire (2)；
The status information is forwarded to message handler (6) by the wireless communication module (5)；
The status information that the message handler (6) generates for sensing unit (1) is analyzed and processed, and obtains analysis result.
10. Oil-filled Cable End state of insulation in-situ check and test method according to claim 9, which is characterized in that it is described according to
The secondary shielding case (7) by tested Oil-filled Cable End, top flange (8) are opened, before further include:
Confirm that the Oil-filled Cable End state of insulation filed detection system is in running order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831156.7A CN110514971A (en) | 2019-09-04 | 2019-09-04 | Oil-filled Cable End state of insulation filed detection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831156.7A CN110514971A (en) | 2019-09-04 | 2019-09-04 | Oil-filled Cable End state of insulation filed detection system and method |
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| Publication Number | Publication Date |
|---|---|
| CN110514971A true CN110514971A (en) | 2019-11-29 |
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| CN201910831156.7A Pending CN110514971A (en) | 2019-09-04 | 2019-09-04 | Oil-filled Cable End state of insulation filed detection system and method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311873A (en) * | 2013-05-31 | 2013-09-18 | 国家电网公司 | Oil charging cable terminal with insulating oil level testing function |
| CN108711820A (en) * | 2018-05-28 | 2018-10-26 | 云南电网有限责任公司昆明供电局 | A kind of plug-in Oil-filled Cable End and its application without shelf depreciation |
| CN108956957A (en) * | 2018-08-20 | 2018-12-07 | 国网陕西省电力公司电力科学研究院 | A kind of hydrogen gas sensor for oil dissolved gas detection |
| CN109375132A (en) * | 2018-09-05 | 2019-02-22 | 南京航空航天大学 | A kind of filling type current mulual inductor malfunction detection device |
-
2019
- 2019-09-04 CN CN201910831156.7A patent/CN110514971A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311873A (en) * | 2013-05-31 | 2013-09-18 | 国家电网公司 | Oil charging cable terminal with insulating oil level testing function |
| CN108711820A (en) * | 2018-05-28 | 2018-10-26 | 云南电网有限责任公司昆明供电局 | A kind of plug-in Oil-filled Cable End and its application without shelf depreciation |
| CN108956957A (en) * | 2018-08-20 | 2018-12-07 | 国网陕西省电力公司电力科学研究院 | A kind of hydrogen gas sensor for oil dissolved gas detection |
| CN109375132A (en) * | 2018-09-05 | 2019-02-22 | 南京航空航天大学 | A kind of filling type current mulual inductor malfunction detection device |
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Application publication date: 20191129 |
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