CN104833413A - On-line vibration monitoring device used for transformer - Google Patents
On-line vibration monitoring device used for transformer Download PDFInfo
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- CN104833413A CN104833413A CN201510105633.3A CN201510105633A CN104833413A CN 104833413 A CN104833413 A CN 104833413A CN 201510105633 A CN201510105633 A CN 201510105633A CN 104833413 A CN104833413 A CN 104833413A
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- vibration
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Abstract
An on-line vibration monitoring device used for a transformer comprises a vibration sensor installed on the transformer, wherein the vibration sensor is connected to an external sensor signal collector through wires, the sensor signal collector converts a collected vibration analog signal into a digital signal through AD conversion and then uploads the digital signal to an A8 upper computer monitoring system which is connected with sensor signal collector through a wireless network and at least capable of displaying vibration velocity; the vibration sensor is a CZ891 vibration sensor capable of directly converting a vibration signal within range of 0-10mm/s into an output current signal within the range of 4-20mA, the sensor signal collector is an STM32F103 sensor signal collection system, and the vibration sensor is connected to the sensor signal collector through 2 wires. The on-line vibration monitoring device of the present invention has the characteristics of reasonable structure, convenient and reliable use, capacity of achieving intelligent monitoring, capacity of ensuring safe operation of a power line, etc.
Description
Technical field
What the present invention relates to is a kind of for transformer on-line vibration monitoring device, belongs to the malfunction monitoring technical field of power equipment.
Background technology
Transformer is the important power equipment of one in electric power facility, the transformer be in During Process of Long-term Operation can because the generation of a variety of causes causing trouble, once break down requiring that electric power first-aid workman goes to immediately, to drop into repairing as early as possible, ensure the normal operation of power circuit.How the fault of Timeliness coverage transformer can become the normal key factor run of power circuit safety, power department at different levels is all putting forth effort the device studying on-line fault monitoring for this reason.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and provide a kind of structure to form rationally, easy to use and reliable, intellectual monitoring can be realized, ensure power circuit safe operation for transformer on-line vibration monitoring device.
The object of the invention is to have come by following technical solution, a kind of for transformer on-line vibration monitoring device, it comprises installation vibration transducer on the transformer, described vibration transducer wire is connected on external collecting sensor signal device, and upload after the vibration simulation signal collected being become digital signal by AD conversion by this collecting sensor signal device in be connected, the A8 host computer that at least can show velocity of vibration or industrial computer.
The vibration signal of described vibration transducer to be one can be by range 0-10mm/s directly changes the CZ891 vibration transducer of 4-20mA output current signal into, described collecting sensor signal device is a STM32F103 collecting sensor signal system, and described vibration transducer is connected to described collecting sensor signal device by 2 lines.
Described collecting sensor signal device is arranged on one specially and is placed in the other vertical cabinet of power transformer.
The present invention has structure composition rationally, easy to use and reliable, can realize intellectual monitoring, ensures the features such as power circuit safe operation.
Accompanying drawing explanation
Fig. 1 is structure theory of constitution schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, one of the present invention is used for transformer on-line vibration monitoring device, it comprises one and is arranged on vibration transducer 2 on transformer 1, described vibration transducer 2 wire 3 is connected on external collecting sensor signal device 4, and upload after the vibration simulation signal collected being become digital signal by AD conversion by this collecting sensor signal device 4 in be connected, the A8 host computer (not shown) that at least can show velocity of vibration; Described A8 host computer also can replace with existing industrial computer, comprises intelligent industrial computer.
Embodiment:
Shown in figure, the vibration signal of vibration transducer 2 of the present invention to be one can be by range 0-10mm/s directly changes the CZ891 vibration transducer of 4-20mA output current signal into, described collecting sensor signal device 4 is a STM32F103 collecting sensor signal system, and described vibration transducer 2 is connected to described collecting sensor signal device 4 by 2 lines.
Collecting sensor signal device 4 of the present invention is arranged on one specially and is placed in the other vertical cabinet 5 of power transformer.
What A8 host computer of the present invention was selected is a kind of AM335X microprocessor based on ARMcortex-A8, with the SD card being greater than 2G, it connects the liquid crystal display that can show various data in real time by parallel data grabbing card, respectively connected GPRS module and RF module by dual serial mouth, and send note to corresponding with SIM card terminating machine by described at least one GPRS module; Described A8 host computer and collecting sensor signal system are all installed in a monitoring box body, and the front of described monitoring box body is provided with described liquid crystal display.
Claims (3)
1. one kind for transformer on-line vibration monitoring device, it comprises installation vibration transducer on the transformer, it is characterized in that described vibration transducer wire is connected on external collecting sensor signal device, and upload after the vibration simulation signal collected being become digital signal by AD conversion by this collecting sensor signal device in be connected, the A8 host computer that at least can show velocity of vibration or industrial computer.
2. according to claim 1 for transformer on-line vibration monitoring device, it is characterized in that described vibration transducer to be one can be by range that the vibration signal of 0-10mm/s directly changes the CZ891 vibration transducer of 4-20mA output current signal into, described collecting sensor signal device is a STM32F103 collecting sensor signal system, and described vibration transducer is connected to described collecting sensor signal device by 2 lines.
3. according to claim 2 for transformer on-line vibration monitoring device, it is characterized in that described collecting sensor signal device is arranged on one specially and is placed in the other vertical cabinet of power transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510105633.3A CN104833413A (en) | 2015-03-11 | 2015-03-11 | On-line vibration monitoring device used for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510105633.3A CN104833413A (en) | 2015-03-11 | 2015-03-11 | On-line vibration monitoring device used for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104833413A true CN104833413A (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510105633.3A Pending CN104833413A (en) | 2015-03-11 | 2015-03-11 | On-line vibration monitoring device used for transformer |
Country Status (1)
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| CN102788931A (en) * | 2012-07-18 | 2012-11-21 | 嘉兴学院 | Power transformer winding fault diagnosing method |
| CN103472350A (en) * | 2013-08-27 | 2013-12-25 | 武汉百楚科技有限公司 | Transformer diagnosis system and diagnosis method |
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2015
- 2015-03-11 CN CN201510105633.3A patent/CN104833413A/en active Pending
Patent Citations (15)
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| JP2006208122A (en) * | 2005-01-27 | 2006-08-10 | Akebono Brake Ind Co Ltd | Vibration measurement device |
| JP2009288164A (en) * | 2008-05-30 | 2009-12-10 | Toshiba Corp | Vibration monitoring device and monitoring method |
| CN101937047A (en) * | 2009-06-30 | 2011-01-05 | 上海市电力公司 | Method of utilizing vibration waveform for detecting state of transformer winding |
| CN101639517A (en) * | 2009-09-08 | 2010-02-03 | 江苏省电力公司南京供电公司 | Power transformer load tap changer switching contact slap fault diagnosis method and device |
| CN101639518A (en) * | 2009-09-08 | 2010-02-03 | 江苏省电力公司南京供电公司 | Power transformer load tap changer switching contact burning fault diagnosis method and device |
| CN101661080A (en) * | 2009-09-23 | 2010-03-03 | 河海大学 | Power transformer on load tap changer contact fall off failure diagnosis method |
| CN101709995A (en) * | 2009-12-24 | 2010-05-19 | 浙江大学 | Methods for vibration online monitoring and fault diagnosis of power transformer |
| CN101769787A (en) * | 2010-01-29 | 2010-07-07 | 浙江大学 | Method for monitoring fault of iron core looseness of power transformer |
| CN201984124U (en) * | 2011-01-28 | 2011-09-21 | 保定天威集团有限公司 | Intelligent online monitoring device for dry type transformer |
| CN102445654A (en) * | 2011-09-16 | 2012-05-09 | 山西省电力公司运城供电分公司 | On-line monitor for mechanical characteristic of on-load tap-changer of power transformer |
| CN102706443A (en) * | 2012-06-04 | 2012-10-03 | 广东工业大学 | Transformer fault detection device based on analysis of vibration signals |
| CN102721464A (en) * | 2012-06-13 | 2012-10-10 | 江苏省电力公司南京供电公司 | Method and system for detecting winding deformation faults of power transformer |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150812 |