CN105652158A - Transformer partial discharge ultrasonic detection system - Google Patents
Transformer partial discharge ultrasonic detection system Download PDFInfo
- Publication number
- CN105652158A CN105652158A CN201410567893.8A CN201410567893A CN105652158A CN 105652158 A CN105652158 A CN 105652158A CN 201410567893 A CN201410567893 A CN 201410567893A CN 105652158 A CN105652158 A CN 105652158A
- Authority
- CN
- China
- Prior art keywords
- partial discharge
- probe
- transformer
- detection system
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
本发明公开了一种变压器局部放电超声波检测系统，本装置由探头、检测装置和数据传送装置组成，所述的检测装置由依次相连的前置放大器、滤波器、主放大器、示波器和处理器组成，所述的探头与前置放大器连接，所述的处理器与数据传送装置连接。本发明结构简单，操作方便，能快速准确的检测出变压器局部放电情况和通过超声波对局部放电点进行准确定位，并且可以将检测结果通过无线网络发送至配电管理中心。
The invention discloses an ultrasonic detection system for partial discharge of a transformer. The device is composed of a probe, a detection device and a data transmission device. The detection device is composed of a preamplifier, a filter, a main amplifier, an oscilloscope and a processor connected in sequence. , the probe is connected with the preamplifier, and the processor is connected with the data transmission device. The invention has simple structure and convenient operation, can quickly and accurately detect the partial discharge of the transformer and accurately locate the partial discharge point through ultrasonic waves, and can send the detection result to the power distribution management center through the wireless network.
Description
技术领域 technical field
本发明涉及一种电力传输线路的检测设备，尤其是一种变压器局部放电超声波检测系统。 The invention relates to a detection device for a power transmission line, in particular to an ultrasonic detection system for partial discharge of a transformer.
背景技术 Background technique
运行的可靠性是对电力系统的首要要求，而且随着经济的发展其重要意义也越来越高。电力系统的可靠性与电力设备的可靠性紧密相关，其运行的可靠性直接关系到电力系统的安全与稳定。电力变压器是电力系统中的枢纽设备，在电力系统中处于极其重要的地位，一旦发生故障，有可能导致大面积停电事故，给电力系统和国民经济带来难以估量的损失。由于电力变压器的绝缘结构通常采用绝缘性能良好的油浸式复合绝缘结构，随着电力系统的发展和电压等级的提高，局部放电已经成为电力变压器绝缘劣化的主要原因。因此，对局部放电的有效检测和定位对于电力设备的安全稳定运行具有重要意义。 Reliability of operation is the primary requirement for power systems, and its significance is becoming more and more important with the development of economy. The reliability of the power system is closely related to the reliability of the power equipment, and the reliability of its operation is directly related to the safety and stability of the power system. The power transformer is the key equipment in the power system and plays an extremely important role in the power system. Once a fault occurs, it may cause a large-scale power outage and bring incalculable losses to the power system and the national economy. Since the insulation structure of power transformers usually adopts an oil-immersed composite insulation structure with good insulation performance, with the development of power systems and the increase of voltage levels, partial discharge has become the main cause of insulation degradation of power transformers. Therefore, the effective detection and location of partial discharge is of great significance to the safe and stable operation of power equipment.
发明内容 Contents of the invention
本发明的目的在于提供一种变压器局部放电超声波检测系统。 The object of the present invention is to provide an ultrasonic detection system for transformer partial discharge.
本发明的目的通过下述技术方案实现：本装置由探头、检测装置和数据传送装置组成，所述的检测装置由依次相连的前置放大器、滤波器、主放大器、示波器和处理器组成，所述的探头与前置放大器连接，所述的处理器与数据传送装置连接。 The object of the present invention is achieved through the following technical solutions: the device is made up of a probe, a detection device and a data transmission device, and the detection device is made up of a preamplifier, a filter, a main amplifier, an oscilloscope and a processor connected successively. The probe is connected with the preamplifier, and the processor is connected with the data transmission device.
进一步，所述的探头为压电式超声波探头。 Further, the probe is a piezoelectric ultrasonic probe.
进一步，所述的数据传送装置为无线网络连接发送装置。 Further, the data transmission device is a wireless network connection sending device.
本发明的有益效果是：结构简单，操作方便，能快速准确的检测出变压器局部放电情况和通过超声波对局部放电点进行准确定位，并且可以将检测结果通过无线网络发送至配电管理中心。 The beneficial effects of the present invention are: simple structure, convenient operation, fast and accurate detection of transformer partial discharge and accurate positioning of partial discharge points through ultrasonic waves, and the detection results can be sent to the power distribution management center through wireless network.
附图说明 Description of drawings
图1为本发明电路方框图。 Fig. 1 is a circuit block diagram of the present invention.
图2为本发明结构简图。 Fig. 2 is a schematic diagram of the structure of the present invention.
具体实施方式 detailed description
下面结合具体的实施例对本发明作进一步地说明。 The present invention will be further described below in conjunction with specific examples.
如图1图2所示，本发明的目的通过下述技术方案实现：本装置由探头1、检测装置2和数据传送装置组成，所述的检测装置2由依次相连的前置放大器、滤波器、主放大器、示波器和处理器组成，所述的探头1与前置放大器连接，所述的处理器与数据传送装置3连接。所述的数据传送装置3为无线网络连接发送装置。 As shown in Fig. 1 and Fig. 2, the object of the present invention is achieved through the following technical solutions: the device is composed of a probe 1, a detection device 2 and a data transmission device, and the detection device 2 is composed of a preamplifier, a filter connected in sequence , a main amplifier, an oscilloscope and a processor, the probe 1 is connected to the preamplifier, and the processor is connected to the data transmission device 3. The data transmission device 3 is a wireless network connection sending device.
使用时探头1吸附在变压器壁外侧。所述探头1为压电式超声波探头，前置放大器将探头1传来的微伏级的信号放大，并提高信号的信噪比，之后滤波器和主放大器用于避免噪声的干扰，提高检测系统的灵敏度。最后信号经示波器和处理器处理后对检测结果进行分析，同时将检测结果通过数据传送装置3发送到配电管理中心。 During use, the probe 1 is adsorbed on the outside of the transformer wall. The probe 1 is a piezoelectric ultrasonic probe, and the preamplifier amplifies the microvolt-level signal transmitted from the probe 1, and improves the signal-to-noise ratio of the signal, and then the filter and the main amplifier are used to avoid noise interference and improve detection system sensitivity. Finally, the signal is processed by an oscilloscope and a processor to analyze the detection result, and at the same time, the detection result is sent to the power distribution management center through the data transmission device 3 .
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567893.8A CN105652158A (en) | 2014-10-23 | 2014-10-23 | Transformer partial discharge ultrasonic detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410567893.8A CN105652158A (en) | 2014-10-23 | 2014-10-23 | Transformer partial discharge ultrasonic detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105652158A true CN105652158A (en) | 2016-06-08 |
Family
ID=56482724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410567893.8A Pending CN105652158A (en) | 2014-10-23 | 2014-10-23 | Transformer partial discharge ultrasonic detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105652158A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201974487U (en) * | 2010-12-23 | 2011-09-14 | 上海市电力公司 | Surface discharge measuring apparatus for transformer fault 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 |
| 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 |
| CN104061999A (en) * | 2014-07-08 | 2014-09-24 | 国家电网公司 | Partial discharge locating detection device of distribution transformer |
-
2014
- 2014-10-23 CN CN201410567893.8A patent/CN105652158A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201974487U (en) * | 2010-12-23 | 2011-09-14 | 上海市电力公司 | Surface discharge measuring apparatus for transformer fault 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 |
| 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 |
| CN104061999A (en) * | 2014-07-08 | 2014-09-24 | 国家电网公司 | Partial discharge locating detection device of distribution transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104316825B (en) | Low-voltage customer connection box of electric energy meter auditing method and system | |
| CN202720309U (en) | Detection and positioning system for partial discharging | |
| CN104808123B (en) | A kind of partial discharge of switchgear detecting system | |
| CN205080227U (en) | Ground net detecting system | |
| CN111579937B (en) | A method and system for accurately locating a single-end fault of a high-voltage GIL device | |
| CN102721854A (en) | Method and system for detecting overvoltage signal of power grid | |
| CN104849635A (en) | Partial discharge positioning system based on ultrasonic sensor array | |
| CN104061999A (en) | Partial discharge locating detection device of distribution transformer | |
| CN204389632U (en) | Insulator arc-over positioning system when one is withstand voltage for GIS | |
| CN203798466U (en) | Operating temperature measuring device based on surface acoustic wave for conductor connection point in switch cabinet | |
| CN207198234U (en) | A kind of isolated neutral capacitance current of distribution network measurement apparatus | |
| CN103018571A (en) | Dual-coupling type on-line monitoring device of ground impedance of electric transmission line | |
| CN204649952U (en) | Based on the bushing shell for transformer monitoring device detection platform of synchro measure | |
| CN105093084A (en) | Partial discharge automatic testing device | |
| CN201893011U (en) | On-line monitoring device for partial-discharge signal wireless transmission of transformer | |
| CN103217633A (en) | Sensor for detecting local discharge of high-voltage switch cabinet | |
| CN105652158A (en) | Transformer partial discharge ultrasonic detection system | |
| CN207964994U (en) | Grounding net of transformer substation health status detection device | |
| CN203241511U (en) | Online switchgear partial discharge monitoring and positioning device based on ultrahigh frequency and pulse current | |
| CN203101524U (en) | High voltage fast pulse measurement mechanism | |
| CN102621460A (en) | Ultrasonic detection device for partial discharge of transformer | |
| CN104730440A (en) | TEV-based switch cabinet partial discharge detection system | |
| CN104360153B (en) | Method for detecting and analyzing harmonic waves of power grids in online manner | |
| CN105277847A (en) | Fault positioning system | |
| CN104715912A (en) | Pincer-shaped resistive current transformer |
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: 20160608 |
|
| RJ01 | Rejection of invention patent application after publication |