CN102621460A - Ultrasonic detection device for partial discharge of transformer - Google Patents
Ultrasonic detection device for partial discharge of transformer Download PDFInfo
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- CN102621460A CN102621460A CN2012100954114A CN201210095411A CN102621460A CN 102621460 A CN102621460 A CN 102621460A CN 2012100954114 A CN2012100954114 A CN 2012100954114A CN 201210095411 A CN201210095411 A CN 201210095411A CN 102621460 A CN102621460 A CN 102621460A
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- probe
- detection device
- transformer
- partial discharge
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Abstract
The invention relates to a device which comprises a probe and a detection device, wherein the probe comprises a built-in probe and an external probe; and the detection device comprises a head amplifier, a filter, a main amplifier, an oscilloscope and a processor successively connected. The detection frequency range of the built-in probe and the external probe are 80-150 KHz. The device has simple structure and convenience for operation, and the partial discharge situation of a transformer can be quickly and accurately detected.
Description
Technical field
The present invention relates to a kind of checkout equipment of power transmission lines, especially a kind of partial discharge of transformer ultrasonic detection device.
Background technology
Reliability of operation is the primary requirement to electric system, and along with its significance of expanding economy is also increasingly high.The reliability of electric system and the reliability of power equipment are closely related, and its reliability of operation is directly connected to the safety and stablization of electric system.Power transformer is the hinge equipment in the electric system, in electric system, is in extremely important status, in case break down, might cause large area blackout, brings loss difficult to the appraisal for electric system and national economy.Because the insulation system of power transformer adopts the good oil immersed type composite insulation structure of insulating property usually,
Along with the raising of power system development and electric pressure, shelf depreciation has become the main cause of electric power transformer insulated deterioration.Therefore, significant to effective detection of shelf depreciation for the safe and stable operation of power equipment.
Summary of the invention
The object of the present invention is to provide a kind of partial discharge of transformer ultrasonic detection device.
The object of the invention is realized through following technical proposals: this device is made up of probe and pick-up unit, and probe is made up of built-in probe and external probe; Pick-up unit is made up of the prime amplifier, wave filter, main amplifier, oscillograph and the processor that link to each other successively.The detection frequency range of said built-in probe and external probe is 80 to 150KHZ.
The invention has the beneficial effects as follows: simple in structure, easy to operate, can detect the partial discharge of transformer situation fast and accurately.
Description of drawings
Fig. 1 is this practical circuit block scheme.
Embodiment
Below in conjunction with concrete embodiment the present invention is done explanation further.
The object of the invention is realized through following technical proposals: this device is made up of probe and pick-up unit, and probe is made up of built-in probe and external probe; Pick-up unit is made up of the prime amplifier, wave filter, main amplifier, oscillograph and the processor that link to each other successively.The detection frequency range of said built-in probe and external probe is 80 to 150KHZ.
Built-in probe is adsorbed on the inboard of transformation wall during use, and the external probe is adsorbed on the transformation wall outside.Prime amplifier amplifies the signal of the microvolt level that probe transmits, and improves the signal to noise ratio (S/N ratio) of signal, and wave filter and main amplifier are used to avoid interference of noise afterwards, improves the sensitivity of detection system.Last signal is analyzed testing result after oscillograph and processor processes.
Claims (2)
1. partial discharge of transformer ultrasonic detection device is characterized in that: this device is made up of probe and pick-up unit, and popping one's head in is popped one's head in by built-in probe and external forms; Pick-up unit is made up of the prime amplifier, wave filter, main amplifier, oscillograph and the processor that link to each other successively.
2. a kind of partial discharge of transformer ultrasonic detection device according to claim 1 is characterized in that; The detection frequency range of said built-in probe and external probe is 80 to 150KHZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100954114A CN102621460A (en) | 2012-04-02 | 2012-04-02 | Ultrasonic detection device for partial discharge of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100954114A CN102621460A (en) | 2012-04-02 | 2012-04-02 | Ultrasonic detection device for partial discharge of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102621460A true CN102621460A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100954114A Pending CN102621460A (en) | 2012-04-02 | 2012-04-02 | Ultrasonic detection device for partial discharge of transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN102621460A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061999A (en) * | 2014-07-08 | 2014-09-24 | 国家电网公司 | Partial discharge locating detection device of distribution transformer |
| CN105652158A (en) * | 2014-10-23 | 2016-06-08 | 国家电网公司 | Transformer partial discharge ultrasonic detection system |
| CN106841939A (en) * | 2016-12-23 | 2017-06-13 | 西安交通大学 | The portable acoustoelectric combined detection means of GIS partial discharge and its detection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050243649A1 (en) * | 2004-04-13 | 2005-11-03 | Areva T&D Sa | Method of detecting and locating a source of partial discharge in an electrical apparatus |
| JP2008232973A (en) * | 2007-03-23 | 2008-10-02 | Tokyo Electric Power Co Inc:The | Device and method for determining partial discharge of electric apparatus |
| CN101644737A (en) * | 2009-09-10 | 2010-02-10 | 优能电气（天津）有限公司 | Positioning device and positioning method for fault detection of local discharge |
| CN101762777A (en) * | 2010-01-21 | 2010-06-30 | 上海大学 | Local discharging on-line detecting and positioning system for electric transformer |
| JP2011085393A (en) * | 2009-10-13 | 2011-04-28 | Meidensha Corp | Partial discharge detection device |
| CN201974487U (en) * | 2010-12-23 | 2011-09-14 | 上海市电力公司 | Surface discharge measuring apparatus for transformer fault detection |
-
2012
- 2012-04-02 CN CN2012100954114A patent/CN102621460A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050243649A1 (en) * | 2004-04-13 | 2005-11-03 | Areva T&D Sa | Method of detecting and locating a source of partial discharge in an electrical apparatus |
| JP2008232973A (en) * | 2007-03-23 | 2008-10-02 | Tokyo Electric Power Co Inc:The | Device and method for determining partial discharge of electric apparatus |
| CN101644737A (en) * | 2009-09-10 | 2010-02-10 | 优能电气（天津）有限公司 | Positioning device and positioning method for fault detection of local discharge |
| JP2011085393A (en) * | 2009-10-13 | 2011-04-28 | Meidensha Corp | Partial discharge detection device |
| CN101762777A (en) * | 2010-01-21 | 2010-06-30 | 上海大学 | Local discharging on-line detecting and positioning system for electric transformer |
| CN201974487U (en) * | 2010-12-23 | 2011-09-14 | 上海市电力公司 | Surface discharge measuring apparatus for transformer fault detection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061999A (en) * | 2014-07-08 | 2014-09-24 | 国家电网公司 | Partial discharge locating detection device of distribution transformer |
| CN105652158A (en) * | 2014-10-23 | 2016-06-08 | 国家电网公司 | Transformer partial discharge ultrasonic detection system |
| CN106841939A (en) * | 2016-12-23 | 2017-06-13 | 西安交通大学 | The portable acoustoelectric combined detection means of GIS partial discharge and its detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120801 |