阅读说明：本技术 充油电缆终端绝缘状态现场检测系统及方法 (Oil-filled Cable End state of insulation filed detection system and method ) 是由 张静 王浩明 杨旭 李文杰 张佳庆 罗传仙 于 2019-09-04 设计创作，主要内容包括：本发明涉及电工检测技术领域,更具体地说,涉及充油电缆终端绝缘状态现场检测系统及方法。所述系统包括：传感单元,用于针对被测充油电缆终端内部状态进行测量,生成状态信息；测量杆,用于将传感单元伸入充油电缆终端内部；信息处理器,用于针对传感单元生成的状态信息进行分析处理,得到分析结果；所述传感单元安装在测量杆上,与信息处理器相连。本发明能准确地针对充油电缆终端绝缘状态进行检测,并且检测效率高。(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.)

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.

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.