CN207164193U - A kind of superfrequency transformer partial discharge on-Line Monitor Device - Google Patents
A kind of superfrequency transformer partial discharge on-Line Monitor Device Download PDFInfo
- Publication number
- CN207164193U CN207164193U CN201721012352.4U CN201721012352U CN207164193U CN 207164193 U CN207164193 U CN 207164193U CN 201721012352 U CN201721012352 U CN 201721012352U CN 207164193 U CN207164193 U CN 207164193U
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- partial discharge
- superfrequency
- transformer
- processor
- signal
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Abstract
The utility model discloses a kind of superfrequency transformer partial discharge on-Line Monitor Device, lead to the conventional detection method for local discharge of current high-tension electricity equipment and be divided into non-electrical detection method and electric detection method, the detection means using ultrasonic Detection Method and chemical composition detection method as representative has turned into the important means of partial discharge non-electrical detection method.But the shortcomings that chemical composition detection means is only capable of the global level for reflecting device interior partial discharge, and ultrasonic Detection Method is difficult to demarcate there is also discharge capacity, signal to noise ratio is low, anti-vibration interference difference and detection efficiency is relatively low.And using the superfrequency method of the application to detect the electromagnetic wave model that shelf depreciation radiates, strong antijamming capability, monitoring efficiency is high, and on-line monitoring, pattern-recognition and fault location can be achieved.
Description
Technical field
A kind of superfrequency transformer partial discharge on-Line Monitor Device is the utility model is related to, belongs to electrical equipment technical field.
Background technology
High-tension electricity equipment uses field condition complicated, and interference source is very more, and interference signal amplitude is big, and extra-high
Frequency monitoring partial discharge has high sensitivity, while can measure the shelf depreciation current pulse shape for being really, to analyze in insulation
Partial discharge property and physical process.In addition, the interference spectrum of electric power equipment on-site is relatively low, and generally below 400MHz, thus it is extra-high
Frequency can effectively suppress external disturbance and improve signal to noise ratio, have boundless market prospects.
Utility model content
Technical problem to be solved in the utility model is the shortcomings that overcoming prior art, there is provided a kind of superfrequency transformation
General ability puts on-Line Monitor Device, by ultrasonic sensor and and low-frequency sensor be monitored, and be equipped with noise
Sensor is shielded to interference signal, it is difficult to which effectively avoided interference signal, and the noise that can cleverly avoid low-frequency range is done
Disturb.
In order to solve the above technical problems, the utility model provides a kind of superfrequency transformer partial discharge on-Line Monitor Device,
Including sensor, data collection processor and main control unit, the sensor is the supersonic sensing in transformer
Device, the ultrasonic sensor are connected by signal cable with the data acquisition process, and the data collection processor passes through
Cable network is connected with main control unit, and the data after the main control unit processing are protected by LAN on the main frame of work station
Deposit, remote computer reads the data of the sensor collection, supersonic sensing by Workstation host described in access to the Internet
The detection frequency range that device uses avoids the interference of the external signal such as low-frequency noise, effectively raises letter for 300MHz~3GHz
Make an uproar ratio.
The technical scheme that the utility model further limits is：Foregoing superfrequency transformer partial discharge on-Line Monitor Device,
There is the data collection processor two paths of signals to gather port, and the first signal port passes through the first transformer and signal condition
Module is connected with ADC modular converters, and secondary signal port is changed by the second transformer and Signal-regulated kinase with the ADC
Module is connected, and the ADC modular converters are connected with digital filter processor；The second transformer output tributary signal passed through
Zero comparator and CAP modules are connected with digital filter processor, the digital filtering data processor output signal transmit to
Main control unit；Power circuit and jtag interface are connected with the digital filter processor.
Foregoing superfrequency transformer partial discharge on-Line Monitor Device, the digital filter processor use TMS320F2812
Chip.
Foregoing superfrequency transformer partial discharge on-Line Monitor Device, the sensor also includes noise transducer, to right
Signal is disturbed to be shielded.
Further, foregoing superfrequency transformer partial discharge on-Line Monitor Device, the data collection processor and master control
Connected between unit by RS485 fiber optic cable communications, using wire communication, ensure that the accurate real-time of data transfer, while energy
Enough resist the signal interference problem under high-pressure situations.
The beneficial effects of the utility model are：Superfrequency of the present utility model has that detection signal band is wide, dynamic range
Greatly, the characteristics of high sensitivity, the interference of noise can be avoided；The monitoring device according to the type for the high-tension electricity equipment surveyed with
And the position of extra-high video sensor installation, signal amplitude comparison method can be selected, divide face method, signal priority comparison method, time difference meter equally
The metering system of algorithm determines position caused by partial discharge, and on-line monitoring, pattern-recognition and fault location can be achieved.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model data collection processor structured flowchart.
Embodiment
Embodiment 1
The present embodiment provides a kind of superfrequency transformer partial discharge on-Line Monitor Device, structure as depicted in figs. 1 and 2, including
Sensor, data collection processor 3 and main control unit 4, sensor are the He of ultrasonic sensor 1 in transformer 5
Noise transducer 2, ultrasonic sensor and noise transducer are connected by signal cable with data acquisition process, at data acquisition
Reason device be connected by RS485 optical cables with main control unit 4, main control unit handle after data by LAN work station 6 master
Preserved on machine, remote computer 7 reads the data of sensor collection by access to the Internet Workstation host.
There is the data collection processor of the present embodiment two paths of signals to gather port, and the first signal port passes through the first mutual inductance
Device and Signal-regulated kinase are connected with ADC modular converters, and secondary signal port passes through the second transformer and signal condition mould
Block is connected with ADC modular converters, and ADC modular converters are connected with digital filter processor；Second transformer output tributary signal leads to
Cross zero-crossing comparator and CAP modules are connected with TMS320F2812 digital filter processors, the output of digital filtering data processor
Signal is transmitted to main control unit；Power circuit and jtag interface are connected with digital filter processor.
The data collection processor that embodiment uses passes through power supply electricity using TMS320F2812 chips as core processing unit
Road provides stable operating voltage for system components, the safe operation of safeguards system, is adjusted using ADC modular converters and signal
Reason module realizes the collection and transmission of data respectively, is also designed in processor system under suitable reset circuit and JTAG
Carry interface circuit.
In addition to the implementation, the utility model can also have other embodiment.It is all to use equivalent substitution or equivalent change
The technical scheme to be formed is changed, all falls within the protection domain of the requires of the utility model.
Claims (5)
1. a kind of superfrequency transformer partial discharge on-Line Monitor Device, including sensor, data collection processor and main control unit,
It is characterized in that：The sensor is the ultrasonic sensor in transformer, and the ultrasonic sensor passes through signal
Cable is connected with the data acquisition process, and the data collection processor is connected by cable network with main control unit, described
Data after main control unit processing are preserved by LAN on the main frame of work station, and remote computer passes through access to the Internet institute
State the data that Workstation host reads the sensor collection.
2. superfrequency transformer partial discharge on-Line Monitor Device according to claim 1, it is characterised in that：The data acquisition
There is processor two paths of signals to gather port, and the first signal port is turned by the first transformer and Signal-regulated kinase with ADC
Mold changing block is connected, and secondary signal port is connected by the second transformer and Signal-regulated kinase with the ADC modular converters, institute
ADC modular converters are stated with digital filter processor to be connected；Second transformer output tributary signal by zero-crossing comparator with
And CAP modules are connected with digital filter processor, the digital filtering data processor output signal is transmitted to main control unit；
Power circuit and jtag interface are connected with the digital filter processor.
3. superfrequency transformer partial discharge on-Line Monitor Device according to claim 2, it is characterised in that：The digital filtering
Processor uses TMS320F2812 chips.
4. superfrequency transformer partial discharge on-Line Monitor Device according to claim 1, it is characterised in that：The sensor is also
Including noise transducer.
5. superfrequency transformer partial discharge on-Line Monitor Device according to claim 1, it is characterised in that：The data acquisition
Connected between processor and main control unit by RS485 fiber optic cable communications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721012352.4U CN207164193U (en) | 2017-08-14 | 2017-08-14 | A kind of superfrequency transformer partial discharge on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721012352.4U CN207164193U (en) | 2017-08-14 | 2017-08-14 | A kind of superfrequency transformer partial discharge on-Line Monitor Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207164193U true CN207164193U (en) | 2018-03-30 |
Family
ID=61716674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721012352.4U Expired - Fee Related CN207164193U (en) | 2017-08-14 | 2017-08-14 | A kind of superfrequency transformer partial discharge on-Line Monitor Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207164193U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901037A (en) * | 2019-04-04 | 2019-06-18 | 中国科学院电工研究所 | High frequency transformer factory insulation test voltage measuring method based on the insulated with material service life |
| CN109900983A (en) * | 2019-02-26 | 2019-06-18 | 北京航空航天大学 | A kind of measuring device of high frequency transformer parasitic parameter |
| CN116223998A (en) * | 2023-05-08 | 2023-06-06 | 四川省菁蓉和欣科技有限公司 | Acoustic-electric combined positioning method for partial discharge inside large transformer |
-
2017
- 2017-08-14 CN CN201721012352.4U patent/CN207164193U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900983A (en) * | 2019-02-26 | 2019-06-18 | 北京航空航天大学 | A kind of measuring device of high frequency transformer parasitic parameter |
| CN109901037A (en) * | 2019-04-04 | 2019-06-18 | 中国科学院电工研究所 | High frequency transformer factory insulation test voltage measuring method based on the insulated with material service life |
| CN116223998A (en) * | 2023-05-08 | 2023-06-06 | 四川省菁蓉和欣科技有限公司 | Acoustic-electric combined positioning method for partial discharge inside large transformer |
| CN116223998B (en) * | 2023-05-08 | 2023-08-22 | 四川省菁蓉和欣科技有限公司 | Acoustic-electric combined positioning method for partial discharge inside large transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: On -line monitoring device is put in special high -frequency transformer office Effective date of registration: 20190902 Granted publication date: 20180330 Pledgee: Nanjing Bank Co., Ltd. Nanjing North Branch Pledgor: Jiangsu Yi Power Technology Co. Ltd. Registration number: Y2019320000112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20200814 |