CN106405346A - Partial discharge detection method and partial discharge detection device - Google Patents
Partial discharge detection method and partial discharge detection device Download PDFInfo
- Publication number
- CN106405346A CN106405346A CN201610748764.8A CN201610748764A CN106405346A CN 106405346 A CN106405346 A CN 106405346A CN 201610748764 A CN201610748764 A CN 201610748764A CN 106405346 A CN106405346 A CN 106405346A
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- CN
- China
- Prior art keywords
- detection
- signal
- shelf depreciation
- partial discharge
- sensing loop
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Classifications
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- 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
-
- 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
- G01R31/1209—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 using acoustic measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a partial discharge detection method and a partial discharge detection device. The method comprises steps that step S1, signal discharge detection, a supersonic wave detection device is utilized to detect a partial discharge signal representing partial discharge generated by the device; step S2, signal analysis, a signal acquisition card is utilized to receive the detection signal detected in the step S1 and analyze the partial discharge signal; and step S3, signal processing, partial discharge cause diagnosis is carried out according to the signal acquired through analysis in the step S2, and cause processing and correction are further carried out. The device comprises a signal discharge detection module, a signal analysis module and a signal processing module. The method is advantaged in that partial discharge diagnosis accuracy and detection sensitivity are improved through detecting the partial discharge signal and making the partial discharge signal realize multi-condition transfer.
Description
Technical field
The present invention relates to a kind of field of detection is and in particular to a kind of detection method of shelf depreciation and its device.
Background technology
Present technical field, the Partial Discharge Detection side of the shelf depreciation producing in detection high-voltage power equipment
Method, for example, arranges foil electrode on the surface of power cable, is coupled to power cable using detection impedance detection by this foil electrode
Outside pulse current of PD.
But existing technology there is a problem of as follows：When shelf depreciation is detected, due to the detection using high impedance
Device, the extraneous noise come due to space radiation or transmission is easy to be added in local discharge signal, thus, makes shelf depreciation
The detection sensitivity of signal reduces.
Content of the invention
It is an object of the invention to provide a kind of detection method of shelf depreciation and its device, be can solve the problem that using the method
Current diagnosis is not accurate, sensitivity not high problem.For solving the above problems, the present invention proposes a kind of inspection of shelf depreciation
Survey method, the method step is as follows：
Step S1, signal discharge examination, represent shelf depreciation produced by device using ultrasonic detection device detection
Local discharge signal；
Step S2, signal analysis, the detection signal being detected by described step S1 is received by data acquisition card and analyzes
Local discharge signal；
Step S3, signal transacting, according to the reason the signal diagnosis shelf depreciation of analysis in described step S2 and process and entangle
Positive reason.
Further, the method also includes：In the outside setting detection closure sensing loop to picture for the detection, this closure senses
Loop has capacitive reactances, and the use closure sensing loop of this detection is very big with respect to the impedance of commercial frequency, and in shelf depreciation
Frequency range impedance very little.
Further, the method also includes：Described detection closure sensing loop is set between detection object and ground connection.
Beneficial effect:The place of problem can timely be reacted, improve the sensitivity of signal simultaneously.
Present invention additionally comprises a kind of detection means of shelf depreciation, this device includes：Signal discharge examination module, for profit
Represent the local discharge signal of shelf depreciation produced by device with ultrasonic detection device detection；
Signal analysis module, receives, for data acquisition card, the detection signal being detected by described step S1 and analyzes local
Discharge signal；
Signal processing module, for according to the reason the signal diagnosis shelf depreciation of analysis in described step S2 and process and entangle
Positive reason.
Further, this device also includes：In the outside setting detection closure sensing loop to picture for the detection, this closure senses
Loop has capacitive reactances, and the use closure sensing loop of this detection is very big with respect to the impedance of commercial frequency, and in shelf depreciation
Frequency range impedance very little.
Further, this device also includes：Described detection closure sensing loop is set between detection object and ground connection.
Beneficial effect：The present invention can efficiently detect the fault of signal, improve the efficiency of detection, be quickly found out problem
Solution.
Brief description
Fig. 1 is a kind of flow chart of the detection method of shelf depreciation of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing, the principle of the present invention and feature are described, example is served only for explaining the present invention, and
Non- for limiting the scope of the present invention.
As shown in fig. 1, the invention discloses a kind of detection method of shelf depreciation, its specific step operation method is such as
Under：
Step S1, signal discharge examination, represent shelf depreciation produced by device using ultrasonic detection device detection
Local discharge signal；
Step S2, signal analysis, the detection signal being detected by described step S1 is received by data acquisition card and analyzes
Local discharge signal；
Step S3, signal transacting, according to the reason the signal diagnosis shelf depreciation of analysis in described step S2 and process and entangle
Positive reason.
The method also includes：In the outside setting detection closure sensing loop to picture for the detection, this closure sensing loop has
There is capacitive reactances, the use closure sensing loop of this detection is very big with respect to the impedance of commercial frequency, and the frequency range in shelf depreciation
Impedance very little.
Described detection closure sensing loop is set between detection object and ground connection.
The invention also discloses a kind of detection means of shelf depreciation, this detection means includes：Signal discharge examination module,
For representing the local discharge signal of shelf depreciation produced by device using ultrasonic detection device detection；
Signal analysis module, receives, for data acquisition card, the detection signal being detected by described step S1 and analyzes local
Discharge signal；
Signal processing module, for according to the reason the signal diagnosis shelf depreciation of analysis in described step S2 and process and entangle
Positive reason.
This device also includes：In the outside setting detection closure sensing loop to picture for the detection, this closure sensing loop has
There is capacitive reactances, the use closure sensing loop of this detection is very big with respect to the impedance of commercial frequency, and the frequency range in shelf depreciation
Impedance very little.
This device also includes：Described detection closure sensing loop is set between detection object and ground connection.
Embodiment：First pass through signal discharge examination, represent office produced by device using ultrasonic detection device detection
The local discharge signal of portion's electric discharge；Then signal analysis, is received by data acquisition card and represents office produced by device by described
The local discharge signal of portion's electric discharge simultaneously analyzes local discharge signal；Then signal transacting, puts according to the signal diagnosis local of analysis
Electric the reason, simultaneously processes correction reason, and the ultrasonic wave wherein using, for the difference in detection time, utilizes ultrasonic wave simultaneously
Quickly accurately reach detection zero error effect.
In this manual, identical embodiment or example are necessarily directed to the schematic representation of above-mentioned term.
And, the specific features of description, structure, material or feature can be with suitable in any one or more embodiments or example
Mode combines.Additionally, in the case of not conflicting, those skilled in the art can be by the difference described in this specification
The feature of embodiment or example and different embodiment or example is combined and combines.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (6)
1. a kind of detection method of shelf depreciation is it is characterised in that this detection method comprises the steps：
Step S1, signal discharge examination, the local of shelf depreciation produced by device is represented using ultrasonic detection device detection
Discharge signal；
Step S2, signal analysis, the detection signal being detected by described step S1 is received by data acquisition card and analyzes local
Discharge signal；
Step S3, signal transacting, according in described step S2 analysis signal diagnosis shelf depreciation the reason and process correction former
Cause.
2. a kind of detection method of shelf depreciation according to claim 1 is it is characterised in that set to the outside of picture in detection
Put detection closure sensing loop, this closure sensing loop has capacitive reactances, this detection with closure sensing loop with respect to
The impedance of commercial frequency is very big, and the impedance very little of the frequency range in shelf depreciation.
3. according to claim 2 a kind of detection method of shelf depreciation it is characterised in that between detection object and ground connection
Setting described detection closure sensing loop.
4. a kind of detection means of shelf depreciation is it is characterised in that this detection means includes：
Signal discharge examination module, for representing the local of shelf depreciation produced by device using ultrasonic detection device detection
Discharge signal；
Signal analysis module, receives, for data acquisition card, the detection signal being detected by described step S1 and analyzes shelf depreciation
Signal；
Signal processing module, for according in described step S2 analysis signal diagnosis shelf depreciation the reason and process correction former
Cause.
5. a kind of detection means of shelf depreciation according to claim 4 is it is characterised in that set to the outside of picture in detection
Put detection closure sensing loop, this closure sensing loop has capacitive reactances, this detection with closure sensing loop with respect to
The impedance of commercial frequency is very big, and the impedance very little of the frequency range in shelf depreciation.
6. a kind of detection means of shelf depreciation according to claim 4 is it is characterised in that in detection object and ground connection
Between described detection closure sensing loop is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748764.8A CN106405346A (en) | 2016-08-29 | 2016-08-29 | Partial discharge detection method and partial discharge detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748764.8A CN106405346A (en) | 2016-08-29 | 2016-08-29 | Partial discharge detection method and partial discharge detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106405346A true CN106405346A (en) | 2017-02-15 |
Family
ID=58002580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610748764.8A Pending CN106405346A (en) | 2016-08-29 | 2016-08-29 | Partial discharge detection method and partial discharge detection device |
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| CN (1) | CN106405346A (en) |
Citations (7)
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|---|---|---|---|---|
| CN1567665A (en) * | 1999-01-28 | 2005-01-19 | 株式会社日立制作所 | Method of diagnosing partial discharge in gas-insulated apparatus and partial discharge diagnosing syatem for carrying out the same |
| CN201974503U (en) * | 2011-03-31 | 2011-09-14 | 广东电网公司广州供电局 | Ultrasonic partial discharge detection analyser |
| CN202433482U (en) * | 2011-10-26 | 2012-09-12 | 上海交通大学 | Portable partial discharge acoustic-electric joint detection apparatus for GIS |
| CN101561472B (en) * | 2008-04-18 | 2013-07-03 | 日本电力电线电缆株式会社 | Detection method for local discharge |
| KR101333179B1 (en) * | 2013-08-01 | 2013-11-26 | 한국 전기안전공사 | Apparatus for diagnosing partial discharge using technique of oil immersed transformer |
| CN203870199U (en) * | 2014-03-28 | 2014-10-08 | 国家电网公司 | GIS lossless monitoring apparatus based on full-life management |
| CN107561426A (en) * | 2017-11-01 | 2018-01-09 | 浙江群力电气有限公司 | A kind of Partial Discharge Online Monitoring of Transformers system based on acooustic combination |
-
2016
- 2016-08-29 CN CN201610748764.8A patent/CN106405346A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567665A (en) * | 1999-01-28 | 2005-01-19 | 株式会社日立制作所 | Method of diagnosing partial discharge in gas-insulated apparatus and partial discharge diagnosing syatem for carrying out the same |
| CN101561472B (en) * | 2008-04-18 | 2013-07-03 | 日本电力电线电缆株式会社 | Detection method for local discharge |
| CN201974503U (en) * | 2011-03-31 | 2011-09-14 | 广东电网公司广州供电局 | Ultrasonic partial discharge detection analyser |
| CN202433482U (en) * | 2011-10-26 | 2012-09-12 | 上海交通大学 | Portable partial discharge acoustic-electric joint detection apparatus for GIS |
| KR101333179B1 (en) * | 2013-08-01 | 2013-11-26 | 한국 전기안전공사 | Apparatus for diagnosing partial discharge using technique of oil immersed transformer |
| CN203870199U (en) * | 2014-03-28 | 2014-10-08 | 国家电网公司 | GIS lossless monitoring apparatus based on full-life management |
| CN107561426A (en) * | 2017-11-01 | 2018-01-09 | 浙江群力电气有限公司 | A kind of Partial Discharge Online Monitoring of Transformers system based on acooustic combination |
Non-Patent Citations (1)
| Title |
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| 周卫华: "《输变电设备状态检修试验技术 变压器类》", 31 December 2015, 北京：中国电力出版社 * |
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Application publication date: 20170215 |