CN203502046U - Power transformer on-line state monitoring system base on vibration method - Google Patents
Power transformer on-line state monitoring system base on vibration method Download PDFInfo
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- CN203502046U CN203502046U CN201320535745.9U CN201320535745U CN203502046U CN 203502046 U CN203502046 U CN 203502046U CN 201320535745 U CN201320535745 U CN 201320535745U CN 203502046 U CN203502046 U CN 203502046U
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 230000003750 conditioning effect Effects 0.000 claims abstract description 14
- 230000001133 acceleration Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241001494479 Pecora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003822 preparative gas chromatography Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a power transformer on-line state monitoring system base on a vibration method. The monitoring system comprises a temperature signal acquisition conditioning circuit disposed inside a transformer, an acceleration signal acquisition conditioning circuit arranged outside the transformer, a switch value acquisition conditioning circuit arranged outside the transformer, a voltage/current sampling conditioning circuit electrically connected with mutual inductors of the transformer, an A/D analog-to-digital conversion circuit, a display, a main controller and a power supply module supplying power for a whole system. The temperature signal acquisition conditioning circuit, the acceleration signal acquisition conditioning circuit, the switch value acquisition conditioning circuit and the voltage/current sampling conditioning circuit are electrically connected with the main controller through the A/D analog-to-digital conversion circuit, and the display is electrically connected with the main controller. According to the utility model, on-site parameters of the vibration, voltage, current, temperature and switch value of the transformer are detected and diagnosed on-line through sensors, so that the transformer can safely operate with high efficiency.
Description
Technical field
The utility model relates to control technique in power system field, is specifically related to a kind of power transformer on-line condition monitoring system based on vibratory drilling method.
Background technology
Along with the fast development of electric system, the load management technology of power transmission and transformation line is constantly promoted, and the problem of this load management technology is also by extensive concern.Power transformer is the nucleus equipment of power transmission and transformation, and its security is the most important thing especially.In the prior art, transformer detection technique is divided into offline inspection and detects two kinds online.Offline inspection mainly adopts posterior maintenance and in case two kinds of modes of maintenance, the mode of this two kinds " mending the fold after the sheep is lost " and " excessively keep in repair " easily causes unnecessary man power and material's consumption, so recent domestic mainly adopts the mode of online detection.
At present, the method for transformer online monitoring mainly contains short-circuit reactance method, transfer function method, sound intensity technique, oil sample vapor-phase chromatography and vibration analysis method.Vibration analysis method is mainly compression situation, displacement and the deformation state that the signal intensity that is fixed on the vibration transducer on oil tank of transformer surface by analysis is monitored transformer inner core and winding.Because vibration analysis method is simple, do not need electrical connection, on the normal operation of electric system without impact and safe and reliable, because of but one of main method that current transformer on-line detecting system is studied.The utility model is the further improvement to the power transformer on-line condition monitoring system of vibration analysis method.
Summary of the invention
The purpose of this utility model is: the deficiency existing in order to overcome prior art, provides a kind of power transformer on-line condition monitoring system based on vibratory drilling method.
The technical scheme that the utility model adopts is: a kind of power transformer on-line condition monitoring system based on vibratory drilling method, comprise the temperature signal collection modulate circuit that is positioned at transformer inside, be positioned at the acceleration signal acquisition and conditioning circuit of transformer outside, be positioned at the switch acquisition modulate circuit of transformer outside, the electric current and voltage sampling modulate circuit being electrically connected to each mutual inductor of transformer, A/D analog to digital conversion circuit, display, master controller and the power module for powering to whole system, described temperature signal collection modulate circuit, described acceleration signal acquisition and conditioning circuit, described switch acquisition modulate circuit, described electric current and voltage sampling modulate circuit is all electrically connected to described master controller by described A/D analog to digital conversion circuit, described display is electrically connected to described master controller.
Between described display and described master controller, by RS232 communication interface, be connected.
Also comprise remote controllers, these remote controllers and described master controller network by communication module.
The beneficial effects of the utility model are: the utility model carries out online detection and diagnosis by each sensor to the on-site parameters of the vibration of transformer, voltage, electric current, temperature and switching value.Hardware be take Embedded System Structure as platform, by communication and network technology, sets up mutual control analysis environment, and real-time is high, reliability is stronger.Adopt CTMS system to carry out transformer field test, realization is to the collection of data and remote analysis function, and can to running state of transformer, provide certain diagnosis according to analysis of experiments result, and transformer is carried out to real-time intelligent, Precise control, guarantee transformer safety, efficiently operation.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Embodiment
In order to understand better the utility model, below in conjunction with embodiment, further illustrate content of the present utility model, but content of the present utility model is not only confined to the following examples.Those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values are equally within the listed claims limited range of the application.
As shown in Figure 1, a kind of power transformer on-line condition monitoring system based on vibratory drilling method, comprise the temperature signal collection modulate circuit that is positioned at transformer inside, be positioned at the acceleration signal acquisition and conditioning circuit of transformer outside, be positioned at the switch acquisition modulate circuit of transformer outside, the electric current and voltage sampling modulate circuit being electrically connected to each mutual inductor of transformer, A/D analog to digital conversion circuit, display, master controller and the power module for powering to whole system, temperature signal collection modulate circuit, acceleration signal acquisition and conditioning circuit, switch acquisition modulate circuit, electric current and voltage sampling modulate circuit is all electrically connected to master controller by A/D analog to digital conversion circuit, display is electrically connected to master controller.
Wherein, between display and master controller, by RS232 communication interface, be connected.Also comprise remote controllers, remote controllers and master controller network by communication module.
In the utility model, hardware core is partly selected the PC/104 module with technical grade standard, and plate carries low-power consumption NS GX1 CPU (clock frequency is 300MHz).Remote controllers adopt GPRS to be connected with master controller, support 10/100M Fast Ethernet, and reliability is higher.The utility model is supported CFC SSD solid-state electronic dish, and simple and stable can fan-free work, supports Windows CE operating system, supports 18-bit TFT LCD to show.
Finally should be noted that; above content is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; the simple modification that those of ordinary skill in the art carries out the technical solution of the utility model or be equal to replacement, does not all depart from essence and the scope of technical solutions of the utility model.
Claims (3)
1. the power transformer on-line condition monitoring system based on vibratory drilling method, it is characterized in that: the described power transformer on-line condition monitoring system based on vibratory drilling method comprises the temperature signal collection modulate circuit that is positioned at transformer inside, be positioned at the acceleration signal acquisition and conditioning circuit of transformer outside, be positioned at the switch acquisition modulate circuit of transformer outside, the electric current and voltage sampling modulate circuit being electrically connected to each mutual inductor of transformer, A/D analog to digital conversion circuit, display, master controller and the power module for powering to whole system, described temperature signal collection modulate circuit, described acceleration signal acquisition and conditioning circuit, described switch acquisition modulate circuit, described electric current and voltage sampling modulate circuit is all electrically connected to described master controller by described A/D analog to digital conversion circuit, described display is electrically connected to described master controller.
2. the power transformer on-line condition monitoring system based on vibratory drilling method according to claim 1, is characterized in that: between described display and described master controller, by RS232 communication interface, be connected.
3. the power transformer on-line condition monitoring system based on vibratory drilling method according to claim 1 and 2, is characterized in that: also comprise remote controllers, these remote controllers and described master controller network by communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535745.9U CN203502046U (en) | 2013-08-30 | 2013-08-30 | Power transformer on-line state monitoring system base on vibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535745.9U CN203502046U (en) | 2013-08-30 | 2013-08-30 | Power transformer on-line state monitoring system base on vibration method |
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| Publication Number | Publication Date |
|---|---|
| CN203502046U true CN203502046U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320535745.9U Expired - Fee Related CN203502046U (en) | 2013-08-30 | 2013-08-30 | Power transformer on-line state monitoring system base on vibration method |
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| CN (1) | CN203502046U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237705A (en) * | 2014-09-30 | 2014-12-24 | 沈阳工业大学 | Multi-information fusion online monitoring device and diagnostic method for windings of power transformers |
| CN104833872A (en) * | 2015-03-11 | 2015-08-12 | 国网浙江海盐县供电公司 | Transformer on-line monitoring device of distribution line |
| CN106908688A (en) * | 2017-03-24 | 2017-06-30 | 广东电网有限责任公司电力科学研究院 | A kind of portable power transformer winding failure real-time diagnosis equipment |
-
2013
- 2013-08-30 CN CN201320535745.9U patent/CN203502046U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237705A (en) * | 2014-09-30 | 2014-12-24 | 沈阳工业大学 | Multi-information fusion online monitoring device and diagnostic method for windings of power transformers |
| CN104237705B (en) * | 2014-09-30 | 2017-01-25 | 沈阳工业大学 | Diagnostic method of multi-information fusion online monitoring device for windings of power transformers |
| CN104833872A (en) * | 2015-03-11 | 2015-08-12 | 国网浙江海盐县供电公司 | Transformer on-line monitoring device of distribution line |
| CN106908688A (en) * | 2017-03-24 | 2017-06-30 | 广东电网有限责任公司电力科学研究院 | A kind of portable power transformer winding failure real-time diagnosis equipment |
| CN106908688B (en) * | 2017-03-24 | 2020-04-17 | 广东电网有限责任公司电力科学研究院 | Portable power transformer winding fault real-time diagnosis equipment |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180830 |