CN213748534U - Traction transformer on-line monitoring system applied to electrified railway - Google Patents
Traction transformer on-line monitoring system applied to electrified railway Download PDFInfo
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- CN213748534U CN213748534U CN202020966032.8U CN202020966032U CN213748534U CN 213748534 U CN213748534 U CN 213748534U CN 202020966032 U CN202020966032 U CN 202020966032U CN 213748534 U CN213748534 U CN 213748534U
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Abstract
The utility model relates to an electric railway pulls power supply transformer monitoring facilities technical field, specific traction transformer on-line monitoring system for electric railway that says so, including transformer, insulating oily optoacoustic spectrum on-line monitoring device, circuit electric current on-line monitoring device, central processing unit, alarm device, computer main website, wireless transmitter and peripheral circuit, the transformer is connected with insulating oily optoacoustic spectrum on-line monitoring device through circuit electric current on-line monitoring device, circuit electric current on-line monitoring device is connected with peripheral circuit, central processing unit electricity, central processing unit is connected with the alarm device electricity, central processing unit passes through wireless transmitter and computer main website network interconnection. The utility model provides a be applied to traction transformer on-line monitoring system of electrified railway has the accurate location of realizing the fault location, and the easy access personnel expandes the advantage of maintenance to the fault point fast.
Description
Technical Field
The utility model relates to an electrified railway pulls power supply transformer monitoring facilities technical field, specific traction transformer on-line monitoring system who is applied to electrified railway that says so.
Background
The online monitoring and fault diagnosis of the power supply equipment are the premise of realizing the predictive maintenance of the power supply equipment, are the key for ensuring the safe and reliable operation of the power supply equipment and are also the significant supplement and expansion of the traditional offline preventive test; as one of the most important devices in a traction power supply system, a traction transformer of an electric railway is widely paid attention and paid attention to online monitoring and diagnosis.
The existing on-line monitoring of the traction transformer applied to the electrified railway mainly aims at on-line monitoring of dissolved gas in transformer oil in the traction transformer, gas in transformer insulating oil is separated through an on-line gas separating device arranged in the transformer oil in the monitoring, the separated gas components are analyzed on line, the concentration of each gas component is compared with a value specified by a national standard, the comparison value is compared with historical data when exceeding the national standard, whether the gas concentration suddenly increases or not is determined, and whether faults and fault types exist in the transformer or not is judged according to the comparison result. However, the failure mechanism of the transformer is complicated and changeable, and it is not comprehensive to obtain the operation state information of the transformer by the oil chromatography online monitoring technology, and the transformer failure operation state information needs to be comprehensively analyzed to improve the accuracy of failure diagnosis.
With the development of related technologies such as computer communication, microprocessors, sensors and the like, on-line monitoring and diagnosis of insulation degradation of a traction transformer gradually appears on-line monitoring equipment for monitoring partial discharge by using sound waves, monitoring water content by using a humidity-sensitive sensor, monitoring winding temperature by using an optical fiber temperature sensor and the like. However, due to the lack of overall scheme design and system planning, the monitoring devices are independent of each other and are in a single system level, platforms and functions cannot be effectively fused and integrated, communication protocols cannot be effectively unified, basic data and information resources cannot be effectively communicated and shared, and an information isolated island phenomenon is serious, so that the monitoring effect is greatly reduced; in addition, the monitoring mode has the defect of incomplete monitoring, so that the requirements of railway construction, operation and management development are difficult to adapt, and the investment benefit cannot be effectively exerted.
Based on the above, the latest transformer online monitoring and diagnosis technology is introduced, meanwhile, related online monitoring equipment is integrated, a layered and distributed traction transformer online monitoring system is constructed by utilizing a network technology, and the traction transformer online monitoring system with unified platform, comprehensive data and online intelligent diagnosis and analysis functions is formed, so that the on-site operation and maintenance are guided, and the equipment state maintenance is realized, and the practical significance is good.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model provides a realize the accurate location of trouble position, the pull transformer on-line monitoring system who is applied to electric railway of convenient to overhaul personnel's expansion maintenance to the fault point fast.
The utility model provides a technical scheme that its technical problem adopted is: a traction transformer on-line monitoring system applied to an electrified railway comprises a transformer, an insulating oil photoacoustic spectrum on-line monitoring device, a line current on-line monitoring device, a central processing unit, an alarm device, a computer master station, a wireless transmitter and a peripheral circuit, wherein the transformer is connected with the insulating oil photoacoustic spectrum on-line monitoring device through the line current on-line monitoring device, the line current on-line monitoring device is electrically connected with the peripheral circuit and the central processing unit, the central processing unit is electrically connected with the alarm device, and the central processing unit is interconnected with the computer master station through a wireless transmitter; the line current on-line monitoring device is used for monitoring a peripheral circuit, acquiring a current value and comparing the monitored current value with a limit protection value.
The utility model discloses a further set up to: the peripheral circuit includes a power supply circuit, a reset circuit, an input circuit, and an output circuit.
The utility model discloses a further set up to: and a current transformer is arranged on the iron core/clamping piece grounding terminal of the transformer.
The utility model discloses a further set up to: and temperature sensors are arranged on the top of the oil tank, the high-voltage winding, the low-voltage winding and the iron core side of the transformer.
The utility model discloses a further set up to: and ultrahigh frequency sensors are arranged on the transformer oil drain valve and the manhole cover plate.
The utility model discloses a further set up to: and a vibration sensor is arranged on the body of the transformer.
The utility model discloses a further set up to: an intelligent merging unit, a switch and a display are installed in a cabinet beside the transformer, data collected by the current transformer, the temperature sensor, the ultrahigh frequency sensor and the vibration sensor are transmitted to the intelligent merging unit through a communication line, and a signal output end of the intelligent merging unit is connected with a remote management side monitoring host through the switch to classify, store, analyze and process signals.
The utility model has the advantages that:
(1) a be applied to electrified railway's traction transformer on-line monitoring system, through setting up line current on-line monitoring device, central processing unit, alarm device, computer main website, wireless transmitter and peripheral circuit, carry out real-time supervision to peripheral circuit's line current, the very first time is reported to the police and is reminded when taking place unusually, carries out audio-visual show to the monitoring position through the computer main website simultaneously, realizes the accurate location of fault location, convenient to overhaul personnel expandes the maintenance to the fault point fast.
(2) A traction transformer on-line monitoring system for electric railway, through setting up current transformer, a weighing sensor and a temperature sensor, hyperfrequency sensor and vibration sensor, data that will collect transmit intelligent merging unit through the communication line, the signal output part of intelligent merging unit passes through the switch and is connected with distal end management side monitoring host computer, classify the signal, the storage, analysis and processing, backstage monitoring main website can be according to the trouble of transformer, the life-span model, develop the transformer operating condition analysis, and to traction transformer life-span, the trouble is evaluateed, for constructing communication protocol unification, the platform is unified, the comprehensive intelligence of function pulls the substation and puts the basis, better application prospect has.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic system structure diagram of a preferred embodiment of the traction transformer online monitoring system applied to an electric railway according to the present invention.
In the figure: 1. a transformer; 2. an insulating oil photoacoustic spectrum online monitoring device; 3. a line current on-line monitoring device; 4. a central processing unit; 5. an alarm device; 6. a computer master station; 7. a wireless transmitter; 8. A peripheral circuit; 9. a power supply circuit; 10. a reset circuit; 11. an input circuit; 12. an output circuit; 13. A vibration sensor; 14. a temperature sensor; 15. a current transformer; 16. an ultrahigh frequency sensor; 17. An intelligent merging unit; 18. a switch; 19. a display.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1, the utility model discloses a be applied to traction transformer on-line monitoring system of electrified railway, including transformer 1, insulating oil light acoustic spectrum on-line monitoring device 2, line current on-line monitoring device 3, central processing unit 4, alarm device 5, computer main website 6, wireless transmitter 7 and peripheral circuit 8, transformer 1 is connected with insulating oil light acoustic spectrum on-line monitoring device 2 through line current on-line monitoring device 3, line current on-line monitoring device is connected with peripheral circuit 8, central processing unit 4 electricity, central processing unit 4 is connected with alarm device 5 electricity, central processing unit 4 is interconnected with computer main website 6 network through wireless transmitter 7; the line current on-line monitoring device is used for monitoring the peripheral circuit 8, acquiring a current value and comparing the monitored current value with a limit protection value.
Further, the peripheral circuit 8 includes a power supply circuit 9, a reset circuit 10, an input circuit 11, and an output circuit 12.
Further, a current transformer 15 is mounted on the core/clip grounding terminal of the transformer 1.
Further, temperature sensors 14 are mounted on the top of the oil tank, the high-voltage winding, the low-voltage winding and the iron core of the transformer 1.
Further, the transformer 1 oil drain valve and the manhole cover plate are provided with an ultrahigh frequency sensor 16.
Further, a vibration sensor 13 is mounted on the body of the transformer 1.
Further, an intelligent merging unit 17, an exchanger 18 and a display 19 are installed in the cabinet beside the transformer 1, data collected by the current transformer 15, the temperature sensor 14, the ultrahigh frequency sensor 16 and the vibration sensor 13 are transmitted to the intelligent merging unit 17 through a communication line, and a signal output end of the intelligent merging unit 17 is connected with a monitoring host of a remote management party through the exchanger 18 to classify, store, analyze and process signals.
The utility model provides a be applied to traction transformer on-line monitoring system of electrified railway's theory of operation as follows:
firstly, monitoring a peripheral circuit 8 by a line current online monitoring device, and comparing a monitored current value with a limit protection value after acquiring the current value; when the monitored current value is greater than the rated current value and less than or equal to the limit protection value, calculating an accumulated energy value of the sampled current value within the time that the monitored current value is greater than the rated current value and less than or equal to the limit protection value, and if the accumulated energy value is greater than a preset energy value, transmitting a signal to an alarm device 5 for alarm reminding; when the monitoring current value is larger than the limit protection value, a signal is transmitted to the alarm device 5 for alarm reminding.
Compared with the prior art, the utility model provides a be applied to traction transformer on-line monitoring system of electrified railway has following beneficial effect:
the utility model provides a traction transformer on-line monitoring system for electrified railway, through setting up line current on-line monitoring device 3, central processing unit 4, alarm device 5, computer main website 6, wireless transmitter 7 and peripheral circuit 8, carry out real-time supervision to the line current of peripheral circuit 8, report to the police and remind very first time when taking place unusually, carry out audio-visual show to the monitoring position through computer main website 6 simultaneously, realize the accurate location of fault location, the maintainer of being convenient for expandes the maintenance to the fault point fast; through setting up current transformer 15, temperature sensor 14, hyperfrequency sensor 16 and vibration sensor 13, data with collecting transmit intelligent merging unit 17 through the communication line, the signal output part of intelligent merging unit 17 is connected with the monitoring host computer of far-end management side through switch 18, classify, the storage, analysis and processing to the signal, backstage monitoring main website can be according to transformer 1's trouble, the life-span model, develop transformer 1 operating condition analysis, and to traction transformer 1 life-span, the trouble is appraised, for constructing that communication protocol is unified, the platform is unified, the comprehensive intelligent traction substation of function lays the foundation, better application prospect has.
The electrical components that appear in this application all external intercommunication power when using.
It is well within the skill of those in the art to implement, without further elaboration, the present invention also contemplates improvements to software that are related to the circuit and electrical components and modules.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description in the above embodiments and the specification is only for illustrating the principles of the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a be applied to electrified railway's traction transformer on-line monitoring system which characterized in that: the online monitoring device comprises a transformer (1), an insulating oil photoacoustic spectrum online monitoring device (2), a line current online monitoring device (3), a central processing unit (4), an alarm device (5), a computer master station (6), a wireless transmitter (7) and a peripheral circuit (8), wherein the transformer (1) is connected with the insulating oil photoacoustic spectrum online monitoring device (2) through the line current online monitoring device (3), the line current online monitoring device (3) is electrically connected with the peripheral circuit (8) and the central processing unit (4), the central processing unit (4) is electrically connected with the alarm device (5), and the central processing unit (4) is in network interconnection with the computer master station (6) through the wireless transmitter (7); the line current on-line monitoring device (3) is used for monitoring a peripheral circuit (8), acquiring a current value and comparing the monitored current value with a limit protection value.
2. The system of claim 1, wherein the traction transformer on-line monitoring system is applied to an electrified railway, and comprises: the peripheral circuit (8) includes a power supply circuit (9), a reset circuit (10), an input circuit (11), and an output circuit (12).
3. The system of claim 2, wherein the traction transformer on-line monitoring system is applied to an electrified railway, and comprises: and a current transformer (15) is arranged on the iron core/clamping piece grounding terminal of the transformer (1).
4. The system of claim 3, wherein the traction transformer on-line monitoring system is applied to an electrified railway, and comprises: and temperature sensors (14) are arranged on the top of an oil tank, the high-voltage winding, the low-voltage winding and the iron core side of the transformer (1).
5. The system of claim 4, wherein the traction transformer on-line monitoring system is applied to an electrified railway, and comprises: and the ultrahigh frequency sensor (16) is arranged on the oil drain valve and the manhole cover plate of the transformer (1).
6. The system of claim 5, wherein the traction transformer on-line monitoring system is applied to an electrified railway, and comprises: and a vibration sensor (13) is arranged on the body of the transformer (1).
7. The system of claim 6, wherein the traction transformer on-line monitoring system comprises: install intelligent merging unit (17), switch (18) and display (19) in the rack by transformer (1), data that current transformer (15), temperature sensor (14), hyperfrequency sensor (16) and vibration sensor (13) collected transmit intelligent merging unit (17) through the communication line, and the signal output part of intelligent merging unit (17) passes through switch (18) and is connected with far-end management side monitoring host computer, classifies, stores, analyzes and handles the signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020966032.8U CN213748534U (en) | 2020-06-01 | 2020-06-01 | Traction transformer on-line monitoring system applied to electrified railway |
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| CN202020966032.8U CN213748534U (en) | 2020-06-01 | 2020-06-01 | Traction transformer on-line monitoring system applied to electrified railway |
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| CN213748534U true CN213748534U (en) | 2021-07-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504391A (en) * | 2020-06-01 | 2020-08-07 | 河北卫讯鼎实智能电气有限公司 | Traction transformer on-line monitoring system applied to electrified railway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504391A (en) * | 2020-06-01 | 2020-08-07 | 河北卫讯鼎实智能电气有限公司 | Traction transformer on-line monitoring system applied to electrified railway |
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