CN111913055A - Locomotive arrester monitoring device - Google Patents
Locomotive arrester monitoring device Download PDFInfo
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- CN111913055A CN111913055A CN201910420010.3A CN201910420010A CN111913055A CN 111913055 A CN111913055 A CN 111913055A CN 201910420010 A CN201910420010 A CN 201910420010A CN 111913055 A CN111913055 A CN 111913055A
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- locomotive
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- arrester
- voltage signal
- infrared
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 45
- 238000012806 monitoring device Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000003331 infrared imaging Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 abstract description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
Abstract
The invention relates to the technical field of locomotive monitoring, and provides a locomotive arrester monitoring device. The monitoring device can comprise a network pressure signal acquisition module, an infrared imaging module, a main control module and a display module; the network voltage signal acquisition module is used for acquiring a network voltage signal of the pantograph end; the infrared imaging module is used for acquiring an infrared thermal image of the lightning arrester and outputting an infrared detection map; the main control module is simultaneously connected with the network pressure signal acquisition module and the infrared imaging module and used for comparing the network pressure signal and the infrared detection map with preset parameters to obtain a comparison result; the display module is connected with the main control module and used for displaying the comparison result. The lightning arrester is monitored in real time by utilizing the network voltage signal and the infrared detection spectrum, the lightning arrester can be timely displayed when being impacted by overvoltage and abnormally heated, and can be protected when in the initial state of the fault of the lightning arrester, so that the fault influence can be avoided from further expansion.
Description
Technical Field
The invention relates to the technical field of locomotive monitoring, in particular to a locomotive arrester monitoring device.
Background
The arrester for electric locomotive is equipped with zinc oxide resistance chip with excellent volt-ampere characteristic, when the system is over-voltage or over-voltage, the resistance chip presents low resistance, and the over-voltage of the system is limited at low level, so that it can reliably protect electric equipment. However, in actual operation, the problem of explosion and crack of the locomotive arrester occurs sometimes, the failure cause is mainly the network voltage overvoltage which is continuous and caused by the resonance of the vehicle network, and the arrester bears continuous power loss, finally causes thermal breakdown and generates burning loss failure.
And the high-voltage insulation detection device of the railway locomotive at the present stage can only judge the high-voltage insulation state of the main broken pantograph side. After the resonant network voltage of the vehicle network is abnormally tripped and is mainly disconnected, the system cannot judge the state of the lightning arrester, and the top network and even the network burning accident are very easily caused by the fact that a driver rises the bow under the condition that the working state of the lightning arrester is unknown.
Therefore, a new monitoring device for the roof arrester of the locomotive needs to be designed.
The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to overcome the defect that the prior art cannot judge the state of the arrester, and provides a locomotive arrester monitoring device capable of judging the state of the arrester.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
According to an aspect of the present invention, a monitoring device for a lightning arrester of a locomotive, the lightning arrester being connected to a pantograph via a main breaker, includes:
the network voltage signal acquisition module is used for acquiring a network voltage signal of the pantograph end;
the infrared imaging module is used for acquiring an infrared thermal image of the lightning arrester and outputting an infrared detection map;
the main control module is simultaneously connected with the network pressure signal acquisition module and the infrared imaging module and used for comparing the network pressure signal and the infrared detection map with preset parameters to obtain a comparison result;
and the display module is connected to the main control module and used for displaying the comparison result.
In an exemplary embodiment of the present disclosure, the network pressure signal acquisition module includes:
the voltage reduction circuit is connected with the pantograph and used for reducing the voltage of the pantograph section by a target preset multiple to obtain a target voltage signal;
and the signal collector is used for denoising the target voltage signal and carrying out effective value calculation to obtain the network voltage signal.
In an exemplary embodiment of the present disclosure, the voltage-decreasing circuit includes:
the high-voltage transformer is connected with the pantograph and used for reducing the voltage of the pantograph section by a first preset multiple to obtain a first voltage signal;
and the synchronous transformer is connected with the high-voltage transformer and used for reducing the first voltage signal by a second preset multiple to obtain a target voltage signal.
In an exemplary embodiment of the present disclosure, the first preset multiple is 250 times.
In an exemplary embodiment of the present disclosure, the second preset multiple is 20 times.
In an exemplary embodiment of the present disclosure, the infrared imaging module includes:
the infrared detection lens is used for collecting an infrared thermal image of the lightning arrester;
the temperature sensor is arranged on the infrared detection lens and used for detecting temperature information around the lightning arrester;
the humidity sensor is used for detecting humidity information around the lightning arrester;
the illumination sensor is used for detecting illumination information around the lightning arrester;
and performing compensation calculation on the infrared thermal image according to the temperature information, the humidity information and the illumination information to obtain an infrared detection map.
In an exemplary embodiment of the present disclosure, the locomotive arrester monitoring device further includes:
the terminal control system can control the conduction and the closing of the main disconnecting switch and the lifting of the pantograph;
and the communication module is connected with the main control module, and the main control module controls the communication module and the information transmission of the terminal control system.
In an exemplary embodiment of the present disclosure, the communication module is configured to receive a master break signal and a locomotive speed transmitted by the terminal control system and transmit the master break signal and the locomotive speed to the master control module;
and the main control module compares the main break signal, the locomotive speed, the network pressure signal and the infrared detection map with preset parameters to obtain a comparison result.
In an exemplary embodiment of the present disclosure, the display device is configured to display the comparison result, the main break signal, and the locomotive speed.
In an exemplary embodiment of the present disclosure, the display storage module includes:
and the storage device is used for storing the infrared detection map, the network pressure signal and the comparison result.
According to the technical scheme, the invention has at least one of the following advantages and positive effects:
the monitoring device for the locomotive arrester comprises a network voltage signal acquisition module, an infrared imaging module, a main control module, a comparison module and a display module, wherein the network voltage signal acquisition module is used for acquiring a network voltage signal of a pantograph section, the infrared imaging module is used for acquiring an infrared thermal image of the arrester and outputting an infrared detection map, and the network voltage signal and the infrared detection map are compared with preset parameters through the main control module to obtain a comparison result which is displayed through the display module. The lightning arrester is monitored in real time by utilizing the network voltage signal and the infrared detection spectrum, the lightning arrester can be timely displayed when being impacted by overvoltage and abnormally heated, and can be protected when in the initial state of the fault of the lightning arrester, so that the fault influence can be avoided from further expansion.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a schematic structural diagram of the connection relationship of the network pressure signal acquisition device of the present invention;
FIG. 2 is a schematic structural view of a locomotive arrester monitoring device according to an exemplary embodiment of the present invention;
fig. 3 is a schematic structural view of a locomotive arrester monitoring device according to another exemplary embodiment of the present invention.
The reference numerals are explained below:
1. a pantograph; 2. a lightning arrester;
3. a network pressure signal acquisition module; 31. a high voltage potential transformer; 32. a synchronous transformer;
4. an infrared imaging module; 5. a main control module; 6. a display module; 7. a communication module;
8. a terminal control system; 9. a storage module; 10. a main break switch; 11. a grounding switch;
12. high-voltage isolating switch.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
After the locomotive is triggered to break the main breaker protection due to network voltage abnormity or primary side overcurrent and the like, the condition of the roof arrester 2 is confirmed to be particularly important, the condition of the locomotive arrester 2 is judged through primary side voltage monitoring and monitoring of power loss heating imaging of the arrester 2, and corresponding measures are taken, so that the fault processing efficiency can be effectively improved, and the safe and orderly operation of a line is guaranteed.
The invention provides a locomotive arrester monitoring device, which can comprise a network voltage signal acquisition module 3, an infrared imaging module 4, a main control module 5 and a display module 6, and is shown in figure 2; the network voltage signal acquisition module 3 is used for acquiring a network voltage signal of the pantograph end; the infrared imaging module 4 is used for acquiring an infrared thermal image of the lightning arrester 2 and outputting an infrared detection map; the main control module 5 is connected with the network pressure signal acquisition module 3 and the infrared imaging module 4 at the same time and is used for comparing the network pressure signal and the infrared detection map with preset parameters to obtain a comparison result; the display module 6 is connected to the main control module 5 and used for displaying the comparison result.
The lightning arrester 2 is monitored in real time by utilizing the network voltage signal and the infrared detection spectrum, the lightning arrester 2 can timely display overvoltage impact when receiving the overvoltage impact and generating abnormal heating, and can be protected when the lightning arrester 2 is in a failure initial state, so that the failure influence can be avoided from further expansion.
Referring to fig. 2, the network voltage signal acquisition device may include a voltage reduction circuit and a signal collector, the voltage reduction circuit may reduce a voltage drop target input by the pantograph 1 by a preset multiple to obtain a target voltage signal, and the signal collector is configured to reduce noise of the target voltage signal and calculate an effective value of the target voltage type to obtain the network voltage signal.
The step-down circuit can include a high voltage potential transformer 31 and a synchronous transformer 32, the high voltage potential transformer 31 is connected with the pantograph 1, and is used for obtaining a first voltage preset multiple from a first voltage preset multiple of the voltage level of the pantograph 1, the first voltage preset multiple can be 250 times, the synchronous transformer 32 is connected with the high voltage potential transformer 31, and the high voltage potential transformer 31 can protect the transformer when the circuit breaks down, so that the later maintenance cost of the device is low. The synchronous transformer 32 performs second voltage reduction on the first voltage signal, and the first voltage signal is lower by a second preset multiple to obtain a target voltage signal, where the voltage reduction multiple of the synchronous transformer 32 may be 20 times, that is, the second preset multiple is 20 times, and the second preset multiple may be any multiple of 15 times or more and 25 times or less, which is not limited specifically herein.
The signal collector is connected to the synchronous transformer 32, and performs noise reduction and effective value calculation on the target voltage signal to obtain a network voltage signal, and the noise reduction process is performed through a low-pass filter. The signal collector transmits the collected network voltage signal to the main control module 5.
Referring to fig. 2, the infrared imaging module 4 is configured to acquire an infrared thermal image of the lightning arrester 2, and output an infrared detection image, and may include an infrared detection lens, a temperature sensor, a humidity sensor, and an illuminance sensor, and acquire the infrared thermal image of the lightning arrester 2 using the infrared detection lens, and the humidity sensor is configured to detect humidity information around the lightning arrester 2; an illuminance sensor for detecting illuminance information around the lightning arrester 2; and performing compensation calculation on the infrared thermal image according to the temperature information, the humidity information and the illumination information to obtain an infrared detection map.
Referring to fig. 3, after performing image denoising processing on the infrared thermal image, performing object recognition, and then performing compensation calculation on the infrared thermal image by using temperature information, humidity information, and illuminance information to obtain an infrared detection map, wherein the specific compensation calculation process is as follows:
the state monitoring of the lightning arrester 2 needs to calculate the temperature rise, the temperature difference and the relative temperature difference in real time, wherein the temperature rise is the difference between the surface temperature of the lightning arrester 2 and the surface temperature of the reference body of the environmental temperature in the view field. The temperature difference is the temperature difference between two arresters 2 or between different parts of one arrester 2. The relative temperature difference is the percentage of the temperature difference between two corresponding measuring points and the temperature rise of the hot point. Relative temperature difference1This can be found by the following equation:
in the formula:
τ1and T1Indicates the temperature rise and temperature of the heat generation point;
τ2and T2Indicating the temperature rise and temperature of the corresponding normal point;
T0indicating the temperature of the ambient temperature reference.
The temperature information, the humidity information, and the illuminance information all affect the temperature rise, and therefore the temperature information, the humidity information, and the illuminance information need to be considered in calculating the temperature rise.
The main control module 5 is connected with the network voltage signal acquisition module 3 and the infrared imaging module 4 simultaneously for comparing the network voltage signal and the infrared detection map with preset parameters to obtain a comparison result, and the display module 6 is used for displaying the comparison result, so that whether the monitoring lightning arrester 2 works normally or not can be implemented.
Referring to fig. 3, the monitoring device for the locomotive arrester of the present invention may further include a terminal control system 8 and a communication module 7, wherein the terminal control system 8 may control the on and off of the main disconnecting switch 10 and the lifting of the pantograph 1; the communication module 7 is connected to the main control module 5, and the main control module 5 controls the information transmission between the communication module 7 and the terminal control system 8.
The terminal control system 8 can control the main disconnecting switch 10 to be disconnected and the pantograph 1 to be lowered to prevent further damage when the comparison result is found to be abnormal, and the maintenance cost is reduced to a certain extent. The terminal control system 8 can perform information transmission with the main control module 5 through a communication system, and the transmission mode can be wired transmission or wireless transmission, such as bluetooth.
The terminal control system 8 can transmit the main break signal and the locomotive speed to the main control module 5, and the main control module 5 compares the main break signal, the locomotive speed, the network pressure signal and the infrared detection map with preset parameters to obtain a comparison result, wherein the main break signal is transmitted to the main control module 5, and the main control module 5 is used for comparing the main break signal, the locomotive speed, the network pressure signal and the infrared detection map with the preset.
Referring to fig. 3, the monitoring device for the locomotive arrester of the present invention may further include a storage module 9 for storing an infrared detection map, roof temperature and humidity information, illuminance information, locomotive speed, master failure information, network voltage information, and fault records in real time. Meanwhile, the storage module 9 supports data reading and dumping. In the daily operation of the locomotive, the storage module 9 can realize the automatic coverage updating of data.
The display module 6 displays and prompts faults according to the relevant comparison result of the lightning arrester 2, and the main control module 5 performs preliminary judgment and gives operation suggestions for fault detection, for example: when the network voltage is normal, the lightning arrester 2 abnormally rises temperature, and the vehicle is isolated; the network voltage is high, the lightning arrester 2 acts, the temperature of the lightning arrester 2 rises normally, and the bow rises after the network voltage is normal; the network is high, the lightning arrester 2 acts and the temperature rise is over-limit, please isolate this section, etc.
Referring to fig. 1, the locomotive will have two lightning arresters 2, which are connected to each other. Two 2 structures of arrester can adopt high voltage isolator 12 to connect, and can set up individual earthing switch 11 with the parallelly connected setting of main disconnected switch 10 for protect the circuit, can effectual judgement be the trouble that which end takes place when the mode trouble, cut off high voltage isolator, handle the one end of trouble, descend the pantograph, the other end normally works.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, and the features discussed in connection with the embodiments are interchangeable, if possible. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower".
In this specification, the terms "a", "an", "the" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting on the number of their objects.
It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the description. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to utilize the invention.
Claims (10)
1. The utility model provides a locomotive arrester monitoring devices, the arrester is connected with the pantograph through main break switch, a serial communication port, include:
the network voltage signal acquisition module is used for acquiring a network voltage signal of the pantograph end;
the infrared imaging module is used for acquiring an infrared thermal image of the lightning arrester and outputting an infrared detection map;
the main control module is simultaneously connected with the network pressure signal acquisition module and the infrared imaging module and used for comparing the network pressure signal and the infrared detection map with preset parameters to obtain a comparison result;
and the display module is connected to the main control module and used for displaying the comparison result.
2. The locomotive arrester monitoring device of claim 1 wherein the network voltage signal acquisition module comprises:
the voltage reduction circuit is connected with the pantograph and used for reducing the voltage of the pantograph section by a target preset multiple to obtain a target voltage signal;
and the signal collector is used for denoising the target voltage signal and carrying out effective value calculation to obtain the network voltage signal.
3. The locomotive arrester monitoring device of claim 2 wherein the voltage step-down circuit comprises:
the high-voltage transformer is connected with the pantograph and used for reducing the voltage of the pantograph section by a first preset multiple to obtain a first voltage signal;
and the synchronous transformer is connected with the high-voltage transformer and used for reducing the first voltage signal by a second preset multiple to obtain a target voltage signal.
4. A locomotive arrester monitoring arrangement according to claim 3 wherein the first predetermined multiple is 250 times.
5. A locomotive arrester monitoring arrangement according to claim 3 wherein the second predetermined multiple is 20.
6. The locomotive arrester monitoring device of claim 1 wherein the infrared imaging module comprises:
the infrared detection lens is used for collecting an infrared thermal image of the lightning arrester;
the temperature sensor is arranged on the infrared detection lens and used for detecting temperature information around the lightning arrester;
the humidity sensor is used for detecting humidity information around the lightning arrester;
the illumination sensor is used for detecting illumination information around the lightning arrester;
and performing compensation calculation on the infrared thermal image according to the temperature information, the humidity information and the illumination information to obtain an infrared detection map.
7. The locomotive arrester monitoring device of claim 1 further comprising:
the terminal control system can control the conduction and the closing of the main disconnecting switch and the lifting of the pantograph;
and the communication module is connected with the main control module, and the main control module controls the communication module and the information transmission of the terminal control system.
8. The locomotive arrester monitoring device according to claim 7, wherein the communication module is configured to receive a main break signal and a locomotive speed transmitted by the terminal control system and transmit the main break signal and the locomotive speed to the main control module;
and the main control module compares the main break signal, the locomotive speed, the network pressure signal and the infrared detection map with preset parameters to obtain a comparison result.
9. The locomotive arrester monitoring device of claim 7 wherein the display device is configured to display the comparison, the main break signal, and the locomotive speed.
10. The locomotive arrester monitoring device of claim 9 wherein the display and storage module comprises:
and the storage device is used for storing the infrared detection map, the network pressure signal and the comparison result.
Priority Applications (1)
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|---|---|---|---|
| CN201910420010.3A CN111913055A (en) | 2019-05-20 | 2019-05-20 | Locomotive arrester monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910420010.3A CN111913055A (en) | 2019-05-20 | 2019-05-20 | Locomotive arrester monitoring device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202141751U (en) * | 2011-07-08 | 2012-02-08 | 南京新宁光电工程有限公司 | Novel lightning arrester online monitoring system |
| CN202421335U (en) * | 2011-12-09 | 2012-09-05 | 中国北车股份有限公司大连电力牵引研发中心 | Locomotive synchronizing signal phase detector, locomotive power supply system and electric locomotive |
| CN202512200U (en) * | 2012-03-06 | 2012-10-31 | 南车株洲电力机车有限公司 | Electric locomotive network side high voltage circuit insulation detection system |
| CN202794394U (en) * | 2012-09-11 | 2013-03-13 | 石建 | On-line detection system for contact network lightning arrester |
| CN203479892U (en) * | 2013-07-26 | 2014-03-12 | 广西电网公司电力科学研究院 | Bus distributed on-line monitoring system for metal oxide arrester leakage current |
| CN106197672A (en) * | 2016-06-21 | 2016-12-07 | 国家电网公司 | A kind of transformator method of real-time based on infrared thermal imaging |
| CN107390099A (en) * | 2017-08-02 | 2017-11-24 | 青岛海能电气有限公司 | A kind of EMUs high voltage equipment insulation state on_line monitoring system |
| CN108122446A (en) * | 2016-11-29 | 2018-06-05 | 中车大同电力机车有限公司 | A kind of motorcycle pantograph control function experimental rig and method |
| CN108761249A (en) * | 2018-07-26 | 2018-11-06 | 云南电网有限责任公司曲靖供电局 | Arrester online monitoring system |
| CN208596190U (en) * | 2018-04-12 | 2019-03-12 | 陕西惠齐电力科技开发有限公司 | The arrester on-line monitoring system of tape counter |
-
2019
- 2019-05-20 CN CN201910420010.3A patent/CN111913055A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202141751U (en) * | 2011-07-08 | 2012-02-08 | 南京新宁光电工程有限公司 | Novel lightning arrester online monitoring system |
| CN202421335U (en) * | 2011-12-09 | 2012-09-05 | 中国北车股份有限公司大连电力牵引研发中心 | Locomotive synchronizing signal phase detector, locomotive power supply system and electric locomotive |
| CN202512200U (en) * | 2012-03-06 | 2012-10-31 | 南车株洲电力机车有限公司 | Electric locomotive network side high voltage circuit insulation detection system |
| CN202794394U (en) * | 2012-09-11 | 2013-03-13 | 石建 | On-line detection system for contact network lightning arrester |
| CN203479892U (en) * | 2013-07-26 | 2014-03-12 | 广西电网公司电力科学研究院 | Bus distributed on-line monitoring system for metal oxide arrester leakage current |
| CN106197672A (en) * | 2016-06-21 | 2016-12-07 | 国家电网公司 | A kind of transformator method of real-time based on infrared thermal imaging |
| CN108122446A (en) * | 2016-11-29 | 2018-06-05 | 中车大同电力机车有限公司 | A kind of motorcycle pantograph control function experimental rig and method |
| CN107390099A (en) * | 2017-08-02 | 2017-11-24 | 青岛海能电气有限公司 | A kind of EMUs high voltage equipment insulation state on_line monitoring system |
| CN208596190U (en) * | 2018-04-12 | 2019-03-12 | 陕西惠齐电力科技开发有限公司 | The arrester on-line monitoring system of tape counter |
| CN108761249A (en) * | 2018-07-26 | 2018-11-06 | 云南电网有限责任公司曲靖供电局 | Arrester online monitoring system |
Non-Patent Citations (2)
| Title |
|---|
| 贾达菲等: "红外热像技术在避雷器故障检测中的应用", 《山西电力》 * |
| 魏绍东等: "500 kV避雷器故障模拟及缺陷检测试验研究", 《电磁避雷器》 * |
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Application publication date: 20201110 |