CN107765154A - A kind of partial discharge of transformer detection method - Google Patents
A kind of partial discharge of transformer detection method Download PDFInfo
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- CN107765154A CN107765154A CN201711101585.6A CN201711101585A CN107765154A CN 107765154 A CN107765154 A CN 107765154A CN 201711101585 A CN201711101585 A CN 201711101585A CN 107765154 A CN107765154 A CN 107765154A
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- partial discharge
- detection
- transformer
- superfrequency
- detection method
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Abstract
The invention discloses a kind of partial discharge of transformer detection method, multigroup Partial Discharge Detection is carried out in diverse location to same transformer by using ultrasonic wave transmitting partial discharge detecting system, superfrequency partial discharge monitoring system and microprocessor, after microprocessor analysis is handled, what can be will be apparent that checks testing result, and two kinds of test results are mutually authenticated.Its advantage is to be integrated with two sets of partial discharge detecting systems, and two kinds of test results are mutually authenticated, and has complementary advantages, has strong interference immunity, detect ageing height.
Description
Technical field
The present invention relates to power equipment partial discharge detection technology, is used more particularly, to power plant and transformer station GIS, transformer
Intensive Care Therapy type partial discharge detection equipment detection mode, specifically a kind of partial discharge of transformer detection method.
Background technology
Domestic Transformers on-line monitoring mainly uses oil gas analysis DGA at present（Dissolved Gas Analysis）Method and
Pulse current method.But oil gas analysis needs a long-term monitoring process, to finding that the Hidden fault of slow development is sensitiveer,
But for catastrophic discontinuityfailure, it is generally difficult to respond in time.And pulse current method is easily influenceed by external interference, anti-interference energy
Power is poor, therefore field application is unsatisfactory always.
The content of the invention
The technical problem to be solved in the present invention is, for the deficiency of traditional detection method, there is provided a kind of ultrasonic wave with it is extra-high
Frequently（UHF）Joint-detection partial discharge of transformer detection method.This method passes through ultrasonic wave caused by partial discharge of transformer
With ultrahigh frequency electromagnetic wave signal, by ultrasonic wave and superfrequency（UHF）Realize the detection and positioning to local discharge defect, this method
With the characteristics of strong interference immunity, detection is ageing high.
To solve the above problems, the present invention solves by the following technical programs：
A kind of partial discharge of transformer detection method, it is characterised in that launch partial discharge detecting system, extra-high by using ultrasonic wave
Frequency partial discharge monitoring system and microprocessor carry out multigroup Partial Discharge Detection to same transformer in diverse location, through microprocessor
After device analyzing and processing, what can be will be apparent that checks testing result, and two kinds of test results are mutually authenticated.
Further, ultrasonic wave transmitting partial discharge detecting system includes ultrasonic detection sensor and connected super
Sonic detection transducing signal change-over circuit and ultrasound examination transducing signal amplifying circuit.
Further, the superfrequency partial discharge monitoring system includes superfrequency detection sensor and connected superfrequency
Detect sensing and transducing circuit and superfrequency detection sensing and transducing signal amplification circuit.
The beneficial effects of the invention are as follows：Two sets of partial discharge detecting systems are integrated with, first, ultrasonic wave launches partial discharge detecting system；When
Superfrequency partial discharge monitoring system, after microprocessor analysis is handled, what can be will be apparent that checks testing result, two kinds of test results
It is mutually authenticated, has complementary advantages.This method has the characteristics of strong interference immunity, detection is ageing high, and this method can be made with portable
With, it can also be run as the online hours time in transformer station, it is real-time to transformer execution to monitor.
Embodiment
A kind of partial discharge of transformer detection method, it is characterised in that by using ultrasonic wave launch partial discharge detecting system,
Superfrequency partial discharge monitoring system and microprocessor carry out multigroup Partial Discharge Detection to same transformer in diverse location, through micro-
After processor analyzing and processing, what can be will be apparent that checks testing result, and two kinds of test results are mutually authenticated.The ultrasonic wave transmitting
Partial discharge detecting system includes ultrasonic detection sensor and connected ultrasound examination transducing signal change-over circuit and ultrasound
Ripple detects transducing signal amplifying circuit.The superfrequency partial discharge monitoring system includes superfrequency detection sensor and connected
Superfrequency detects sensing and transducing circuit and superfrequency detection sensing and transducing signal amplification circuit.
This method in use, both can use single sensor carry out Partial Discharge Detection, can also be by multiple different
Partial discharge detecting sensor carries out multigroup Partial Discharge Detection to same transformer in diverse location simultaneously.Using it is multiple not
Same partial discharge detecting sensor carries out Partial Discharge Detection to same transformer in diverse location simultaneously.Why install
Polytype sensor, it is because shelf depreciation is mainly released energy in the form of electromagnetic wave and sound wave, there are multiple detections to pass
Sensor can improve the accuracy for detecting whether shelf depreciation.For example, superfrequency（UHF）Sensor can detect 300M-
3GHZ electromagnetic wave, ultrasonic sensor can detect ultrasonic wave caused by partial discharge of transformer.Due to these sensors
In same environment, multichannel synchronousing collection is carried out to the Partial Discharge Data of same transformer, measurement result has laterally right
Compare property.Its testing result is more accurate.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
Some equivalent substitutes or obvious modification are made on the premise of not departing from present inventive concept, and performance or purposes are identical, then should
It is considered as belonging to the protection domain that claims that the present invention is submitted determine.
Claims (3)
1. a kind of partial discharge of transformer detection method, it is characterised in that launch partial discharge detecting system, spy by using ultrasonic wave
High frequency partial discharge monitoring system and microprocessor carry out multigroup Partial Discharge Detection to same transformer in diverse location, through micro- place
After managing device analyzing and processing, what can be will be apparent that checks testing result, and two kinds of test results are mutually authenticated.
A kind of 2. partial discharge of transformer detection method according to claim 1, it is characterised in that the ultrasonic wave transmitting
Partial discharge detecting system includes ultrasonic detection sensor and connected ultrasound examination transducing signal change-over circuit and ultrasound
Ripple detects transducing signal amplifying circuit.
A kind of 3. partial discharge of transformer detection method according to claim 1, it is characterised in that the superfrequency partial discharge
Monitoring system includes superfrequency detection sensor and connected superfrequency detection sensing and transducing circuit and superfrequency detection passes
Feel conversion signal amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711101585.6A CN107765154A (en) | 2017-11-10 | 2017-11-10 | A kind of partial discharge of transformer detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711101585.6A CN107765154A (en) | 2017-11-10 | 2017-11-10 | A kind of partial discharge of transformer detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107765154A true CN107765154A (en) | 2018-03-06 |
Family
ID=61273284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711101585.6A Withdrawn CN107765154A (en) | 2017-11-10 | 2017-11-10 | A kind of partial discharge of transformer detection method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107765154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261741A (en) * | 2019-05-24 | 2019-09-20 | 国网河北省电力有限公司电力科学研究院 | Discharge position localization method, device and the terminal device of high-tension switch gear |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205941793U (en) * | 2016-08-08 | 2017-02-08 | 国家电网公司 | Transformer partial discharge detection device |
-
2017
- 2017-11-10 CN CN201711101585.6A patent/CN107765154A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205941793U (en) * | 2016-08-08 | 2017-02-08 | 国家电网公司 | Transformer partial discharge detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261741A (en) * | 2019-05-24 | 2019-09-20 | 国网河北省电力有限公司电力科学研究院 | Discharge position localization method, device and the terminal device of high-tension switch gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |