CN104061999A - Partial discharge locating detection device of distribution transformer - Google Patents
Partial discharge locating detection device of distribution transformer Download PDFInfo
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- CN104061999A CN104061999A CN201410320764.9A CN201410320764A CN104061999A CN 104061999 A CN104061999 A CN 104061999A CN 201410320764 A CN201410320764 A CN 201410320764A CN 104061999 A CN104061999 A CN 104061999A
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- partial discharge
- detection device
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- locating
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Abstract
The invention discloses a partial discharge locating detection device of a distribution transformer. The partial discharge locating detection device is composed of a probe, a detection device body and a data transmission device. The detection device body is composed of a pre-amplifier, a filter, a main amplifier, an oscilloscope and a processor which are connected in sequence. The probe is connected with the pre-amplifier. The processor is connected with the data transmission device. The partial discharge locating detection device is simple in structure, convenient to operate and capable of quickly and accurately detecting the partial discharge condition of the transformer and accurately locating a partial discharge point through ultrasonic waves, and can also transmit detection results to a power distribution management center through a wireless network.
Description
Technical field
The present invention relates to a kind of checkout equipment of power transmission lines, especially a kind of substation transformer shelf depreciation locating and detecting device.
Background technology
Reliability of operation is the primary requirement to electric system, and along with its significance of expanding economy is also more and more higher.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 electric system, in electric system, in extremely important status, once break down, likely causes large area blackout, brings loss difficult to the appraisal to electric system and national economy.Because the insulation system of power transformer adopts the good oil immersed type composite insulation structure of insulating property conventionally, along with the development of electric system and the raising of electric pressure, shelf depreciation has become electric power transformer insulated deteriorated main cause.Therefore, significant for the safe and stable operation of power equipment to effective detection of shelf depreciation and location.
Summary of the invention
The object of the present invention is to provide a kind of substation transformer shelf depreciation locating and detecting device.
Object of the present invention is achieved through the following technical solutions: this device is comprised of probe, pick-up unit and data link, described pick-up unit is comprised of the prime amplifier being connected successively, wave filter, main amplifier, oscillograph and processor, described probe is connected with prime amplifier, and described processor is connected with data link.
Further, described probe is piezoelectric ultrasonic probe.
Further, described data link is that wireless network connects dispensing device.
The invention has the beneficial effects as follows: simple in structure, easy to operate, can detect fast and accurately partial discharge of transformer situation and by ultrasound wave, local point of discharge accurately be located, and testing result can be sent to distribution management center by wireless network.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present invention.
Fig. 2 is structure diagram of the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described.
As shown in Fig. 1 Fig. 2, object of the present invention is achieved through the following technical solutions: this device is comprised of probe 1, pick-up unit 2 and data link, described pick-up unit 2 is comprised of the prime amplifier being connected successively, wave filter, main amplifier, oscillograph and processor, described probe 1 is connected with prime amplifier, and described processor is connected with data link 3.Described data link 3 is wireless network connection dispensing device.
During use, pop one's head in and 1 be adsorbed on transformation wall outside.Described probe 1 is piezoelectric ultrasonic probe, and prime amplifier amplifies the signal of the 1 microvolt level transmitting of popping one's head in, and improves the signal to noise ratio (S/N ratio) of signal, and wave filter and main amplifier are for avoiding the interference of noise, the sensitivity that improves detection system afterwards.Last signal is analyzed testing result after oscillograph and processor processing, testing result is sent to distribution management center by data link 3 simultaneously.
Claims (3)
1. a substation transformer shelf depreciation locating and detecting device, it is characterized in that: this device is comprised of probe, pick-up unit and data link, described pick-up unit is comprised of the prime amplifier being connected successively, wave filter, main amplifier, oscillograph and processor, described probe is connected with prime amplifier, and described processor is connected with data link.
2. substation transformer shelf depreciation locating and detecting device according to claim 1, is characterized in that: described probe is piezoelectric ultrasonic probe.
3. substation transformer shelf depreciation locating and detecting device according to claim 1, is characterized in that: described data link is that wireless network connects dispensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320764.9A CN104061999A (en) | 2014-07-08 | 2014-07-08 | Partial discharge locating detection device of distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320764.9A CN104061999A (en) | 2014-07-08 | 2014-07-08 | Partial discharge locating detection device of distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104061999A true CN104061999A (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410320764.9A Pending CN104061999A (en) | 2014-07-08 | 2014-07-08 | Partial discharge locating detection device of distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104061999A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182203A (en) * | 2015-09-30 | 2015-12-23 | 广西电网有限责任公司电力科学研究院 | Device and method for detecting partial discharge of power capacitor |
| CN105652158A (en) * | 2014-10-23 | 2016-06-08 | 国家电网公司 | Transformer partial discharge ultrasonic detection system |
| CN105911435A (en) * | 2016-04-11 | 2016-08-31 | 国网上海市电力公司 | Ultrasonic wave wireless sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048836A (en) * | 2000-08-04 | 2002-02-15 | Hitachi Cable Ltd | Method of detecting partial discharge in power cable |
| CN202230176U (en) * | 2011-09-23 | 2012-05-23 | 上海市电力公司 | Remote directional online detection device used for power transmission and distribution line partial discharge detection |
| CN102621460A (en) * | 2012-04-02 | 2012-08-01 | 武陟县电业总公司 | Ultrasonic detection device for partial discharge of transformer |
| CN203287478U (en) * | 2013-05-28 | 2013-11-13 | 国家电网公司 | Partial discharge online monitoring system for general power cable |
| CN203479966U (en) * | 2013-07-26 | 2014-03-12 | 广西电网公司电力科学研究院 | On-line monitoring comprehensive processing unit for partial discharge signals of high-voltage switchgear |
-
2014
- 2014-07-08 CN CN201410320764.9A patent/CN104061999A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048836A (en) * | 2000-08-04 | 2002-02-15 | Hitachi Cable Ltd | Method of detecting partial discharge in power cable |
| CN202230176U (en) * | 2011-09-23 | 2012-05-23 | 上海市电力公司 | Remote directional online detection device used for power transmission and distribution line partial discharge detection |
| CN102621460A (en) * | 2012-04-02 | 2012-08-01 | 武陟县电业总公司 | Ultrasonic detection device for partial discharge of transformer |
| CN203287478U (en) * | 2013-05-28 | 2013-11-13 | 国家电网公司 | Partial discharge online monitoring system for general power cable |
| CN203479966U (en) * | 2013-07-26 | 2014-03-12 | 广西电网公司电力科学研究院 | On-line monitoring comprehensive processing unit for partial discharge signals of high-voltage switchgear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652158A (en) * | 2014-10-23 | 2016-06-08 | 国家电网公司 | Transformer partial discharge ultrasonic detection system |
| CN105182203A (en) * | 2015-09-30 | 2015-12-23 | 广西电网有限责任公司电力科学研究院 | Device and method for detecting partial discharge of power capacitor |
| CN105911435A (en) * | 2016-04-11 | 2016-08-31 | 国网上海市电力公司 | Ultrasonic wave wireless sensor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140924 |
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| RJ01 | Rejection of invention patent application after publication |