CN202453085U - Power transformer overheat fault detector - Google Patents
Power transformer overheat fault detector Download PDFInfo
- Publication number
- CN202453085U CN202453085U CN201120492145XU CN201120492145U CN202453085U CN 202453085 U CN202453085 U CN 202453085U CN 201120492145X U CN201120492145X U CN 201120492145XU CN 201120492145 U CN201120492145 U CN 201120492145U CN 202453085 U CN202453085 U CN 202453085U
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- power transformer
- fault detector
- power
- xscale
- infrared
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Abstract
The utility model relates to a power transformer overheat fault detector which includes an infrared sensor, an XScale embedded processor, a liquid crystal display module, a power supply module, and a computer communication interface. The power transformer overheat fault detector can realize the overheat fault detection and the automatic alarm of a power transformer. The application of the power transformer overheat fault detector can effectively guarantee the safe and stable operation of a power system, reduce the maintenance cost of power devices, and guarantee the electric power quality and the power supply reliability, so the power transformer overheat fault detector is meaningful to the continuous increase of the national economy and the normal power consumption of people. The power transformer overheat fault detector is small in volume, rapid in operation speed, high in precision, big in storage capacity, and is reliable in operation.
Description
Technical field
The utility model belongs to power transformer overheating fault checkout equipment.
Background technology
The converting station electric power transformer is the visual plant of Operation of Electric Systems, because of the influence of long-play and extraneous factor cause overheated can initiating failure, cause in various degree economic loss and social influence easily.Traditional power transformer overheating fault detection method is a manual inspection, not only loses time and manpower, also is not easy in time to find potential faults so that in time get rid of.
The utility model content
The purpose of the utility model provides a kind ofly saves time with manpower, can in time find the power transformer overheating fault detector of the overheating fault of power transformer.
The technical solution of the utility model is: it comprises infrared sensor, XScale flush bonding processor, LCD MODULE, power module and computing machine communication interface; Infrared sensor is used to gather infrared picture data that power transformer sends and transmits to the XScale flush bonding processor; The XScale flush bonding processor receives the next infrared picture data of infrared sensor transmission and it is handled, sends to LCD MODULE and shows, carries out the data transmission with computing machine; LCD MODULE is used to show the heat picture of testee; Power module is that detector provides power supply, and the computing machine communication interface is used for the communication between XScale flush bonding processor and the computing machine.
The technique effect of the utility model is: it can realize that power transformer is carried out overheating fault to be detected and warning automatically.Use it can effectively ensure the power system safety and stability operation, reduce the electric equipment maintenance cost, guarantee the quality of power supply and power supply reliability, have great importance for the sustainable growth and the normal electricity consumption of people that ensure national economy.This system bulk is little, fast operation, precision high, memory capacity is big, reliable.
It is gathered the power transformer infrared image through infrared thermal imaging, does not need manual inspection, realizes power transformer is carried out overheating fault detection and automatic warning the automatically.Use it can save a large amount of manpower and materials, realize that finally power equipment is from the transformation of traditional scheduled overhaul to the prevision repair based on condition of component.
Description of drawings
Accompanying drawing is the utility model example structure schematic diagram.
Embodiment
It comprises infrared sensor, XScale flush bonding processor, LCD MODULE, power module and computing machine communication interface.
(1) infrared sensor
Infrared sensor is made up of optical system, infrared eye and signal conditioning circuit.Optical system is used to receive the infrared radiation of testee, according to the requirement of visual field size and picture element and by Different Red outward optical lens form, play to infrared radiation converge, effects such as filtering and focusing.Infrared eye is surveyed the sub-fraction on testee surface, exports an electric signal that is directly proportional with the radiation flux that receives.Infrared eye can only be surveyed the sub-fraction on testee surface in any moment; This sub-fraction is called as " instantaneous field of view "; When visiting instantaneous field of view,, will export an electric signal that is directly proportional with the radiation flux that receives immediately as long as the response time of detector is enough fast.Instantaneous field of view generally has only zero point several to several milliradians; In order to make one to have the object image-forming that tens of degree multiply by tens of degree visual field; Then need carry out optical mechaical scanning to whole testee; The essence of optical mechaical scanning is to be divided into a lot of little unit to the vertical and horizontal both direction of body surface in the space according to certain rules, and scanning mechanism makes optical receiving system do two-dimensional scan to body surface, promptly inswept successively each junior unit.The arbitrary moment of infrared eye in this process receive only the radiation of a junior unit of body surface, and it is the radiation information that in chronological sequence receives each junior unit of object in the two-dimensional space along with optical receiving system successively.In whole scanning process; The output of detector is the corresponding electric signal of radiation flux of each instantaneous field of view in a succession of and the scanning sequency; Become sequential electric signal to the infrared radiation information that space two-dimensional distributes by signal conditioning circuit for one dimension; After this again through amplifying, synthetic with synchronizing signal, finally just be combined into whole object surfaces heat picture.
(2) XScale flush bonding processor
It is core that system hardware is handled module employing PXA270 processor by the Xscale embedded system, and frequency of operation reaches 400MHz.This module is used for handling the thermal image signal from detector in real time, and this module has very strong arithmetic capability, adds that high efficiency algorithm satisfies the needs of handling and showing in real time.The SDRAM that it comprises 32M guarantee the system and program at a high speed, stable operation; The Norflash of 8M is used for storage system kernel, bootloader and file system; The Nandflash of 64M is used to store a large amount of flight data files, is convenient to post analysis process; RS485 serial ports and Ethernet are used for carrying out communication with PC, and 485 serial ports can satisfy the requirement of test site long-range data transmission; LCD is used for the Presentation Function page and analysis result.Its function mainly contains: the Real Time Observation of measured target, measurement, analysis, carry out collection, storage, enhancing, filtering and noise reduction, pseudo-colours demonstration, geometric transformation, image operation, transmission and output etc. to heat picture.
(3) LCD MODULE
Adopt the LCD liquid crystal display, be used to show the heat picture of testee.
(4) power module
The XScale flush bonding processor uses the input of 5V direct supply, and power supply IC adopts AP1507, and the input voltage range of this chip is 4V-22V, and the Adjustable Output Voltage scope is 1.23-18V, and output current is 3A to the maximum, and persistent current is recommended in below the 1.5A.The 3.3V DC voltage that obtains through the D/C converter supplies mainboard I/O port to use, and 1.8V voltage adopts power supply chip MIC5207BM5 to obtain.1.8V voltage on the mainboard mainly is used in the BUFFER place, and it is 1.8V or 3.3V that available resistance is selected the voltage of BUFFER.
(5) computing machine communication interface
The Xscale processor provides three universal asynchronous receiving-transmitting serial line interfaces (UART).These three asynchronous receiving-transmitting serial ports are respectively FFUART (global function 9 needle serial ports), BTUART (bluetooth 5 needle serial ports), STUART (3 line standard serial ports).In native system, utilized FFUART (global function 9 needle serial ports) to carry out the serial communication of RS-232-C.
The utlity model has following function:
(1) gathers the infrared picture data of sending that power transformer generates.
(2) be BMP bitmap format and preservation with the infrared image format conversion, handle for successive image and prepare.
(3) select classical image processing algorithms such as grey level stretching, medium filtering, pseudocolor transformation, improved the quality of image, thereby made the actual temperature of the accurate measuring transformer of system.
(4) realize temperature survey demonstration and warning function, make the staff in time understand equipment operation condition.
Claims (6)
1. power transformer overheating fault detector; It is characterized in that: it comprises infrared sensor, XScale flush bonding processor, LCD MODULE, power module and computing machine communication interface; Infrared sensor is used to gather infrared picture data that power transformer sends and transmits to the XScale flush bonding processor; The XScale flush bonding processor receives the next infrared picture data of infrared sensor transmission and it is handled, sends to LCD MODULE and shows, carries out the data transmission with computing machine; LCD MODULE is used to show the heat picture of testee; Power module is that detector provides power supply, and the computing machine communication interface is used for the communication between XScale flush bonding processor and the computing machine.
2. power transformer overheating fault detector as claimed in claim 1 is characterized in that said infrared sensor is made up of optical system, infrared eye and signal conditioning circuit; Optical system is used to receive the infrared radiation of testee; According to the requirement of visual field size and picture element and by Different Red outward optical lens form; Play to infrared radiation converge, effects such as filtering and focusing, infrared eye is surveyed the sub-fraction on testee surface, export an electric signal that is directly proportional with the radiation flux of reception; Signal conditioning circuit becomes the sequential electric signal for one dimension to the infrared radiation information that space two-dimensional distributes; After this again through amplifying, synthetic with synchronizing signal, finally just be combined into whole object surfaces heat picture.
3. power transformer overheating fault detector as claimed in claim 1; It is characterized in that said XScale embedded processor system hardware is made up of Xscale embedded system processing module; It adopts the PXA270 processor is core; Frequency of operation reaches 400MHz, and this module is used for handling in real time the thermal image signal from detector, the SDRAM that it comprises 32M guarantee the system and program at a high speed, stable operation; The Norflash of 8M is used for storage system kernel, bootloader and file system; The Nandflash of 64M is used to store a large amount of flight data files, is convenient to post analysis process; RS485 serial ports and Ethernet are used for carrying out communication with PC, and 485 serial ports can satisfy the requirement of test site long-range data transmission; LCD is used for the Presentation Function page and analysis result.
4. power transformer overheating fault detector as claimed in claim 1 is characterized in that said LCD MODULE adopts the LCD liquid crystal display, is used for the Presentation Function page and analysis result.
5. power transformer overheating fault detector as claimed in claim 1 is characterized in that said power module power supply IC adopts AP1507, and the input voltage range of this chip is 4V-22V, and the Adjustable Output Voltage scope is 1.23-18V, and output current is 3A to the maximum.
6. power transformer overheating fault detector as claimed in claim 1 is characterized in that said computing machine communication interface has utilized global function 9 needle serial ports to carry out the serial communication of RS-232-C in native system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120492145XU CN202453085U (en) | 2011-11-30 | 2011-11-30 | Power transformer overheat fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120492145XU CN202453085U (en) | 2011-11-30 | 2011-11-30 | Power transformer overheat fault detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453085U true CN202453085U (en) | 2012-09-26 |
Family
ID=46868941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120492145XU Expired - Fee Related CN202453085U (en) | 2011-11-30 | 2011-11-30 | Power transformer overheat fault detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453085U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017538A (en) * | 2016-06-27 | 2016-10-12 | 国网江苏省电力公司盐城供电公司 | Transformer detection apparatus |
| CN106324035A (en) * | 2016-08-18 | 2017-01-11 | 国网天津市电力公司 | Online electrical equipment fault detecting terminal based on infrared thermal imaging |
| CN106679821A (en) * | 2017-02-13 | 2017-05-17 | 浙江中新电力发展集团有限公司 | Portable power equipment fault recognition detector based on infrared image, and operating method for portable power equipment fault recognition detector |
| CN107907217A (en) * | 2017-11-11 | 2018-04-13 | 成都市龙泉星源机械厂 | A kind of Novel welder transformer On-line Fault monitoring system and monitoring method |
| CN110210099A (en) * | 2019-05-27 | 2019-09-06 | 国网河北省电力有限公司邢台供电分公司 | Equipment heating failure prediction method, apparatus and terminal device |
-
2011
- 2011-11-30 CN CN201120492145XU patent/CN202453085U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017538A (en) * | 2016-06-27 | 2016-10-12 | 国网江苏省电力公司盐城供电公司 | Transformer detection apparatus |
| CN106324035A (en) * | 2016-08-18 | 2017-01-11 | 国网天津市电力公司 | Online electrical equipment fault detecting terminal based on infrared thermal imaging |
| CN106679821A (en) * | 2017-02-13 | 2017-05-17 | 浙江中新电力发展集团有限公司 | Portable power equipment fault recognition detector based on infrared image, and operating method for portable power equipment fault recognition detector |
| CN107907217A (en) * | 2017-11-11 | 2018-04-13 | 成都市龙泉星源机械厂 | A kind of Novel welder transformer On-line Fault monitoring system and monitoring method |
| CN110210099A (en) * | 2019-05-27 | 2019-09-06 | 国网河北省电力有限公司邢台供电分公司 | Equipment heating failure prediction method, apparatus and terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20131130 |