CN101776720B - Multiple-factor detection system for aging condition of fuse and assessment method for aging condition - Google Patents
Multiple-factor detection system for aging condition of fuse and assessment method for aging condition Download PDFInfo
- Publication number
- CN101776720B CN101776720B CN2010100036683A CN201010003668A CN101776720B CN 101776720 B CN101776720 B CN 101776720B CN 2010100036683 A CN2010100036683 A CN 2010100036683A CN 201010003668 A CN201010003668 A CN 201010003668A CN 101776720 B CN101776720 B CN 101776720B
- Authority
- CN
- China
- Prior art keywords
- fuse
- measured
- detection system
- factor detection
- ageing state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to a multiple-factor detection system for the aging condition of a fuse. The system comprises an adjustable constant current source, an adjustable thermostat, a temperature acquisition device, a resistance measuring instrument and a PC machine, wherein the adjustable constant current source is connected in series with the fuse to be detected; the adjustable thermostat is used for simulating the on-site operating condition of the fuse to be detected; the resistance measuring instrument is used for measuring the resistance data of the fuse to be detected in the thermostat periodically or in real time; the PC machine is connected with an output end of a multi-channel acquisition card and used for receiving temperature data acquired by the multi-channel acquisition card in real time, analyzing the temperature rise characteristic of the fuse, and judging whether the fuse is aged or not by combining the resistance data transmitted by the resistance measuring instrument. The multiple-factor detection system for the aging condition of the fuse can measure purchasing fuses, stock fuses and fuses in service; and through the system, the use safety of the fuse can be effectively enhanced.
Description
Technical field
The present invention relates to a kind of fuse pick-up unit, relate in particular to the system and method that is used to detect the fuse ageing state.
Background technology
Fuse is after surpassing the setting certain hour according to electric current, to make the melt fusing with the heat that himself produces, thus a kind of current protector that the principle that circuit is disconnected is made.Fuse is widely used in low-voltage distribution system and control system and the consumer, as short circuit and overcurrent protection, is to use one of the most general protection device.
And fuse in use, because the influence of electric current and external environment, it inevitably takes place aging.Wearing out of fuse mainly comprises wearing out of fuse and wearing out of electrode.The former dominant mechanism comprises alloy effect, scaling powder corrosion of metal electro-migration, silver ion migration, solder joint fusing, evaporation of metal, solder flux etc.; The latter's agine mechaism mainly is that high temperature and humidity cause the electrical contact surface oxidation, causes loose contact.Phenomenons such as local mass defect or cavity can appear in the fuse that fuse is aging on the fuse metal; thereby change the protection feature curve of fuse, subsequently in service fuse malfunction takes place very easily and do (referring to that fuse is not reaching the phenomenon that just occurs fusing under the condition of minimum conventional fusing current).
But the aging Direct observation that is difficult for of fuse is judged, because number of applications is huge, also is difficult for judging by whole detections.As the protecting component of circuit or important load, in case fuse, very difficult evaluation is because the aging misoperation that causes of normal fusing that circuit abnormality causes or fuse.There are major safety risks in this phenomenon for some important circuit or load.
Existing fuse measuring technology comprises resistive fuse measurement and X-RAY detection technique.The fundamental purpose of these detections is that manufacturer carries out performance test and screening to new fuse products, do not pay close attention to the ageing state of fuse, promptly at present relative backward in the research of fuse ageing state detection technique aspect life appraisal, can't in time discover the aging conditions of fuse, cause a large amount of aging fuses to continue situation about using.Therefore, the ageing state that how to detect fuse timely is a problem demanding prompt solution.
Summary of the invention
The object of the present invention is to provide and a kind ofly can carry out Measurement and analysis, thereby judge the pick-up unit of its ageing state the various states parameter of fuse.
For achieving the above object, the technical solution adopted in the present invention is: a kind of fuse ageing state multiple-factor detection system, and it comprises,
The adjustable constant-flow source is used for being in series with fuse to be measured, for the fuse to be measured of different capacitance grade provides analog current;
The adjustable thermostatic case, in be provided with and be used for fuse to be measured is installed in wherein test board, described adjustable thermostatic case is used to simulate the on-the-spot operating condition of fuse to be measured;
Temperature collecting device comprises and fuse to be measured the contact thermopair that is used to measure multi-point temp on the fuse, the multichannel collecting card that is connected with the thermopair output terminal;
Resistance measuring instrument, it is used for measuring regularly or in real time the resistance data of fuse to be measured in constant temperature oven;
PC, described PC is connected with the output terminal of multichannel collecting card, it receives the temperature data of multichannel collecting card collection in real time and carries out the analysis of fuse temperature characteristic, and whether the resistance data that transmits in conjunction with resistance measuring instrument wears out to fuse and judge simultaneously.
Technique scheme is optimized for further, and it also comprises the infrared temperature measurement apparatus that output terminal is connected with PC, and described infrared temperature measurement apparatus is used for detecting intuitively the Temperature Distribution on the fuse and carries out the focus location.
Described infrared temperature measurement apparatus is a thermal infrared imager.
This device also comprises the fuse appearance delection device, tentatively judges camera and the weighing unit that fuse is whether aging thereby described appearance delection device comprises whether the shape that is used to judge fuse and size change.
Described PC respectively with described adjustable constant-flow source and adjustable thermostatic case control linkage mutually, in measuring process, described PC is handled the data that record, and shows with graph mode.
Described graph mode is electric current-time-temperature curve.
Described PC is provided with human-computer interaction interface, and after correspondingly setting according to different fuses and different field working conditions, system detects automatically to fuse state to be measured.
Particularly,, modulate constant current source electric current output waveform as required arbitrarily, comprise step, sine, pulse and other specific waveforms etc. according to the setting signal that system interface receives; The control calorstat temperature, the on-the-spot operating condition of simulation fuse; Control multichannel temperature capture card and infrared detecting device in real time, continuously, interrupted and particular moment automatic data collection; Regularly to fuse carry out visual examination, resistance is measured automatically; Robotization control can both be realized in all testing processes and the record of testing result.
Simultaneously its testing result to automatic collection is handled, and forms family curve, form, picture or video, and forms database, can realize storage, inquiry and calling function, and stores and show in modes such as form, curve, picture or videos.
The present invention also provides a kind of fuse multi-stress aging state evaluating method, and it comprises:
Adopt fuse ageing state multiple-factor detection system that temperature characteristic, the resistance characteristic of fuse to be detected are detected to judge the step of fuse current state;
Adopt x-ray instrument that the fuse of fuse is had an X-rayed the detection step;
Adopt scanning electron microscope SEM that fuse is broken a seal to handle to carry out microcosmic and detect step;
The result who adopts detection system to detect is comprehensively judged with X-ray detection result and SEM testing result, the aging of fuse assessed with realization.
Further, detection system also comprises the fuse outward appearance is detected and the fuse focus is measured.
Because the employing of technique scheme, the present invention compared with prior art, have the following advantages: the present invention is by the field working conditions of simulation fuse to be measured, fuse is carried out resistance measurement, infrared measurement of temperature and contact temperature-measuring, and the result who detects analyzed, realize the multiple-factor state-detection of fuse so that whether fuse is worn out is judged, combine the result that X-RAY, SEM detect simultaneously, ageing state to fuse carries out comprehensive assessment, to realize the detection to the detection system reliability.Fuse ageing state multiple-factor detection system can be measured to buying, stock and at the fuse of labour, by this system, will effectively strengthen the security that fuse uses.
Description of drawings
Accompanying drawing 1 is fuse multiple-factor condition detecting system theory diagram of the present invention;
Wherein: 1, adjustable constant-flow source; 2, adjustable thermostatic case; 3, temperature collecting cell; 31, thermopair; 32, multichannel collecting card; 4, resistance measuring instrument; 5, PC; 6, infrared detection unit; 7, appearance delection device; 10, fuse to be measured;
Embodiment
Fuse ageing state multiple-factor detection system as shown in Figure 1 mainly comprises
Adjustable constant-flow source 1, it is used to fuse 10 to be measured that electric current is provided, when concrete the application, fuse according to different capacitance grade, the range in this adjustable constant-flow source and precision can be adjusted, simultaneously according to the different tests requirement, and the current output signal scalable, in the present embodiment, the output waveform of constant current source can be waveforms such as step, sine (power frequency), pulse;
Adjustable thermostatic case 2, it is used to simulate the field working conditions at fuse place, in order accurately to simulate the fuse field working conditions, constant temperature oven 2 should guarantee to have enough spaces, and in the present embodiment, the range of adjustable thermostatic case can be chosen in 10～70 ℃, 1 ℃ of precision, casing can adopt transparent material to make; Test board is installed in constant temperature oven, because the type of fuse is different with size, therefore, in the present embodiment, the shape of test board should be consistent with the installation of fuse at corresponding scene as far as possible;
Temperature collecting device 3 comprises and fuse to be measured the contact thermopair 31 that is used to measure multi-point temp on the fuse, the multichannel collecting card 32 that is connected with thermopair 31 output terminals.Wherein, thermopair can be selected for use small-sized, high precision thermocouple, and measure fuse multi-point temp along the line according to circumstances, thus reach the requirement of measuring fuse temperature characteristic and Temperature Distribution.In the present embodiment, the multichannel temperature capture card can be accepted 16 thermometric channel datas simultaneously, and measurement data is transmitted in real time;
Resistance measuring instrument 4, it is used for measuring regularly or in real time the resistance data of fuse to be measured in constant temperature oven; In the present embodiment, select for use the high precision multimeter that the resistance of fuse is measured;
Infrared temperature measurement apparatus 6 mainly uses the thermal infrared imager of high spatial resolution, intuitively the fuse Temperature Distribution is shown, and can accurately locate focus;
Appearance delection device 7 mainly uses the high-performance camera, can take pictures to fuse, judges whether the shape of fuse and size occur changing;
PC 5, it has enough processing speeds, storage space and parallel interface, as adopts portable notebook computer, and simultaneously, it can be according to concrete Input/Output Device configuration.
Above-mentioned each ingredient to fuse ageing state detection system is illustrated, when measuring at the scene, adjustable constant-flow source 1 and fuse 10 to be measured need be in series, and PC is controlled the output in adjustable constant-flow source 1, think that different fuses provides corresponding current signal, then fuse is inserted in the adjustable thermostatic case 2, the temperature of same 5 pairs of constant temperature ovens 2 of PC is regulated control.The input end of a plurality of thermopairs 31 is directly contacted with fuse, the output terminal of thermopair 31 is connected with multichannel temperature capture card 32, the output terminal of multichannel collecting card 32 is connected with PC 5, thereby thermopair is given PC with the temperature of difference on the fuse by multichannel collecting card real-time Transmission.Equally, the output terminal of resistance measuring instrument 4 output terminals and infrared detecting device 6 also links to each other with PC 5 respectively, make measurement data can real-time Transmission to PC, PC receives above-mentioned each device to be judged the corresponding data that fuse to be measured detects, thereby can analyze the ageing state of fuse.And when measuring, PC carries out the demonstration of electric current-time-temperature curve to measurement data, thereby judges that for further the ageing state of fuse provides the intuitive analysis means.
When actual measurement, in the present embodiment, can be earlier tentatively judge from the ageing state to fuse in appearance by appearance delection device, and then further adopt aforesaid way accurately to detect, promptly from many aspects the state of fuse is carried out sampling analysis, with accuracy and the reliability that guarantees to detect.
Above-mentioned each detecting unit can be controlled automatically to the testing process of fuse, particularly, this system is provided with human-computer interaction interface, by human-computer interaction interface the parameter attribute of fuse to be detected is set, thereby modulate constant current source electric current output waveform as required arbitrarily, the control calorstat temperature is with the on-the-spot operating condition of simulation fuse, multichannel temperature capture card and infrared detecting device are to data automatic collecting, testing result to automatic collection is handled, form family curve, form, picture or video, and the formation database, so that store, inquire about and call; Above-mentioned automatic control process can realize that concrete software realization flow those skilled in the art just can realize according to above-mentioned each composition and principle of work introduction to system, not repeat them here by the software that is embedded in the PC.
Detection system of the present invention is comprehensively judged fuse current state to be detected by multiple means such as outward appearance detection, precision resister detection, temperature characteristic detection and focus measurements, to reach the purpose of judging whether fuse wears out.In order further to assess above-mentioned multi-stress aging state-detection result's reliability, the present invention also provides a kind of fuse multi-stress aging state evaluating method, the various testing results that it detects according to said detecting system, comprehensive x-ray instrument detects fuse Kaifeng microcosmic the detection of fuse perspective and the scanning electron microscope SEM of fuse to be detected, thus but the ageing state of synthetic determination fuse.
The foregoing description only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (9)
1. fuse ageing state multiple-factor detection system is characterized in that: it comprises,
Adjustable constant-flow source (1) is used for being in series with fuse to be measured, for the fuse to be measured of different capacitance grade provides analog current;
Adjustable thermostatic case (2), in be provided with and be used for fuse to be measured is installed in wherein test board, described adjustable thermostatic case (2) is used to simulate the on-the-spot operating condition of fuse to be measured;
Temperature collecting device (3) comprises and fuse to be measured the contact thermopair (31) that is used to measure multi-point temp on the fuse to be measured, the multichannel collecting card (32) that is connected with thermopair (31) output terminal;
Resistance measuring instrument (4), it is used for measuring regularly or in real time the resistance data of fuse to be measured (10) in adjustable thermostatic case (2);
PC (5), described PC (5) is connected with the output terminal of multichannel collecting card (32), its real-time temperature data that receives multichannel collecting card (32) collection also carries out fuse temperature characteristic to be measured analysis, and whether the resistance data that transmits in conjunction with resistance measuring instrument (4) wears out to fuse to be measured and judge simultaneously.
2. fuse ageing state multiple-factor detection system according to claim 1, it is characterized in that: it also comprises the infrared temperature measurement apparatus (6) that output terminal is connected with PC (5), and described infrared temperature measurement apparatus (6) is used for detecting intuitively the Temperature Distribution on the fuse to be measured and carries out the focus location.
3. fuse ageing state multiple-factor detection system according to claim 2 is characterized in that: described infrared temperature measurement apparatus (6) is a thermal infrared imager.
4. fuse ageing state multiple-factor detection system according to claim 1 and 2, it is characterized in that: it also comprises fuse appearance delection device (7), and described appearance delection device (7) thereby comprise is used to judge whether the shape of fuse to be measured and size change tentatively judges camera and the weighing unit that fuse to be measured is whether aging.
5. fuse ageing state multiple-factor detection system according to claim 4, it is characterized in that: described PC (5) respectively with described adjustable constant-flow source (1) and adjustable thermostatic case (2) control linkage mutually, in measuring process, described PC (5) is handled the data that record, and shows with graph mode.
6. fuse ageing state multiple-factor detection system according to claim 5 is characterized in that: described graph mode is electric current-time-temperature curve.
7. fuse ageing state multiple-factor detection system according to claim 4, it is characterized in that: described PC (5) is provided with human-computer interaction interface, after fuse to be measured and different on-the-spot operating condition were correspondingly set according to difference, fuse ageing state multiple-factor detection system detected automatically to fuse state to be measured.
8. method that adopts the described fuse ageing state of claim 1 multiple-factor detection system to carry out fuse multi-stress aging state estimation, it is characterized in that: it comprises
Adopt fuse ageing state multiple-factor detection system that temperature characteristic, the resistance characteristic of fuse to be measured are detected to judge the step of fuse current state to be measured;
Adopt x-ray instrument that the fuse of fuse to be measured is had an X-rayed the detection step;
Adopt scanning electron microscope SEM that fuse to be measured is broken a seal to handle to carry out microcosmic and detect step;
The result who adopts fuse ageing state multiple-factor detection system to detect is comprehensively judged with x-ray instrument testing result and SEM testing result, the ageing state of fuse to be measured is assessed with realization.
9. the method for fuse multi-stress aging state estimation according to claim 8 is characterized in that: also comprise and adopt fuse ageing state multiple-factor detection system that fuse outward appearance to be measured is detected and fuse to be measured is carried out the focus location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100036683A CN101776720B (en) | 2010-01-04 | 2010-01-04 | Multiple-factor detection system for aging condition of fuse and assessment method for aging condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100036683A CN101776720B (en) | 2010-01-04 | 2010-01-04 | Multiple-factor detection system for aging condition of fuse and assessment method for aging condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101776720A CN101776720A (en) | 2010-07-14 |
| CN101776720B true CN101776720B (en) | 2011-09-07 |
Family
ID=42513229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100036683A Expired - Fee Related CN101776720B (en) | 2010-01-04 | 2010-01-04 | Multiple-factor detection system for aging condition of fuse and assessment method for aging condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101776720B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3575806A1 (en) * | 2018-05-31 | 2019-12-04 | Eaton Intelligent Power Limited | Monitoring systems and methods for estimating thermal-mechanical fatigue in an electrical fuse |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175938A (en) * | 2011-01-20 | 2011-09-07 | 国电南瑞科技股份有限公司 | Electric vehicle conductive-charging interface temperature rise testing system |
| CN102253305B (en) * | 2011-05-04 | 2013-09-18 | 北京荣科恒阳整流技术有限公司 | Detection method of fuse state of heavy current rectifier equipment |
| CN102426322B (en) * | 2011-11-01 | 2013-09-11 | 新泰市供电公司 | Fuse member ampere-second characteristic tester |
| CN103163396B (en) * | 2011-12-14 | 2016-01-27 | 中国广核集团有限公司 | Nuclear power station midget fuse detection method |
| CN102519599B (en) * | 2011-12-20 | 2014-03-12 | 苏州热工研究院有限公司 | Fuse automatic temperature measurement system |
| CN102636748A (en) * | 2012-05-07 | 2012-08-15 | 苏州热工研究院有限公司 | Multi-factor detection system for ageing state of electromagnetic relay and ageing state estimation method |
| CN104166090A (en) * | 2014-07-24 | 2014-11-26 | 李晓静 | Convenient fuse-protector detection and backup device |
| CN105699796A (en) * | 2014-11-25 | 2016-06-22 | 国网辽宁省电力有限公司丹东供电公司 | Distribution transformer fuse remaining life prediction device and distribution transformer fuse remaining life prediction method |
| CN104793130B (en) * | 2015-03-25 | 2016-04-13 | 国家电网公司 | A kind of fuse on-line monitoring system |
| US10203362B2 (en) * | 2015-05-22 | 2019-02-12 | GM Global Technology Operations LLC | Manual service disconnect fuse state determination systems and methods |
| CN105137217A (en) * | 2015-07-14 | 2015-12-09 | 国家电网公司 | Fuse performance test method based on auxiliary test bench |
| CN105591368B (en) * | 2015-12-31 | 2018-03-06 | 北京天诚同创电气有限公司 | Method and device for revising working parameters of fuse |
| CN105785222A (en) * | 2016-04-01 | 2016-07-20 | 中国振华集团云科电子有限公司 | Plug-in fuse secondary quick screening method |
| US9989579B2 (en) * | 2016-06-20 | 2018-06-05 | Eaton Intelligent Power Limited | Monitoring systems and methods for detecting thermal-mechanical strain fatigue in an electrical fuse |
| US10288665B2 (en) * | 2016-12-12 | 2019-05-14 | Lg Chem, Ltd. | Vehicle having a diagnostic system for an electrical fuse |
| CN109579998B (en) * | 2017-09-28 | 2021-07-27 | 阿特斯阳光电力集团股份有限公司 | Detection method for contact resistance of photovoltaic connector |
| US11143718B2 (en) | 2018-05-31 | 2021-10-12 | Eaton Intelligent Power Limited | Monitoring systems and methods for estimating thermal-mechanical fatigue in an electrical fuse |
| CN109030548B (en) * | 2018-08-08 | 2021-06-29 | 苏州科技大学 | Polymer material thermal aging life evaluation method based on activation energy variation |
| CN109490696B (en) * | 2018-12-11 | 2021-01-29 | 库尔兹电子科技(南通)有限公司 | Aging detection device for electronic device |
| US11506621B2 (en) | 2019-03-01 | 2022-11-22 | Delphi Technologies Ip Limited | System and method for multi-point thermal path assessment |
| CN112829586B (en) * | 2019-11-25 | 2022-06-07 | 北京新能源汽车股份有限公司 | Method and device for monitoring fuse and electric automobile |
| JP2024135573A (en) * | 2023-03-23 | 2024-10-04 | 株式会社オートネットワーク技術研究所 | Deterioration determination device |
| CN117607756B (en) * | 2024-01-18 | 2024-04-05 | 杭州布雷科电气有限公司 | Fuse performance test platform based on antagonistic neural network |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007054297A1 (en) * | 2007-11-09 | 2009-05-14 | Siemens Ag | Fuse load circuit breaker for e.g. protecting consumer, has integrated resistance measuring instrument with current generator for producing test current, where instrument measures resistance of fuse |
| CN101546902A (en) * | 2008-03-24 | 2009-09-30 | 茗熔集团有限公司 | Device for monitoring working state of fuse |
| CN201335876Y (en) * | 2008-12-23 | 2009-10-28 | 上海德力西集团有限公司 | Detection device for electrical characteristics of circuit breaker based on DSP |
| CN201725002U (en) * | 2010-01-04 | 2011-01-26 | 苏州热工研究院有限公司 | Multi-factor detection system for aging state of fuse |
-
2010
- 2010-01-04 CN CN2010100036683A patent/CN101776720B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007054297A1 (en) * | 2007-11-09 | 2009-05-14 | Siemens Ag | Fuse load circuit breaker for e.g. protecting consumer, has integrated resistance measuring instrument with current generator for producing test current, where instrument measures resistance of fuse |
| CN101546902A (en) * | 2008-03-24 | 2009-09-30 | 茗熔集团有限公司 | Device for monitoring working state of fuse |
| CN201335876Y (en) * | 2008-12-23 | 2009-10-28 | 上海德力西集团有限公司 | Detection device for electrical characteristics of circuit breaker based on DSP |
| CN201725002U (en) * | 2010-01-04 | 2011-01-26 | 苏州热工研究院有限公司 | Multi-factor detection system for aging state of fuse |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2007-43860A 2007.02.15 |
| JP特开平9-82211A 1997.03.28 |
| 岩崎行夫等."熔断器反复过电流的寿命".《低压电器》.1982,(第2期),48-52. |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3575806A1 (en) * | 2018-05-31 | 2019-12-04 | Eaton Intelligent Power Limited | Monitoring systems and methods for estimating thermal-mechanical fatigue in an electrical fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101776720A (en) | 2010-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101776720B (en) | Multiple-factor detection system for aging condition of fuse and assessment method for aging condition | |
| CN201725002U (en) | Multi-factor detection system for aging state of fuse | |
| CN102393501B (en) | MOSFET reliability test analysis system and method thereof | |
| KR100622985B1 (en) | Automatic Meter Reading system watching an surreptitious use of electricity and electric leakage | |
| CN106092376B (en) | A kind of wireless temperature measurement means for correcting and method | |
| CN102175719B (en) | CCD visualization self-ignition point tester | |
| CN101614591A (en) | A kind of device for detecting temperature that is used for high voltage isolation switch contact | |
| CN103854446A (en) | Method and device for diagnosing high-voltage switch cabinet dynamic temperature rising and alarming | |
| CN201654166U (en) | Intelligent fuse life testing system | |
| CN202109999U (en) | Digital minisize multi-point temperature change detector | |
| CN203534628U (en) | System for monitoring temperature of high-voltage electrical cabinet | |
| Lyon Jr et al. | Relationship between current load and temperature for quasi-steady state and transient conditions | |
| CN113269941A (en) | Electrical fire alarm device based on multi-information fusion judgment and control method | |
| CN112649121A (en) | Working temperature detection method for 5G radio frequency equipment | |
| CN107255528A (en) | A kind of medical electrical equipment direct current winding temperature rise test device and method of testing | |
| CN110865250A (en) | Power distribution equipment state monitoring device integrating current monitoring and heating detection method | |
| CN207528907U (en) | A kind of measurement instrument automatic monitoring device | |
| CN114166852B (en) | Smoothing reactor online monitoring method and system based on multispectral detection | |
| CN105509893B (en) | Thermal imaging temperature measurement on-line method | |
| CN203981323U (en) | High-voltage isolating switch sensing finger pressure tester | |
| CN207366067U (en) | A kind of electronic weighing instrument | |
| CN202562654U (en) | Temperature transmitter detector | |
| CN111736026A (en) | Temperature rise test system and method | |
| Neto et al. | Electro-thermal simulation of ZnO arresters for diagnosis using thermal analysis | |
| US11614476B2 (en) | Electrical utility multifunctional device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215004 West Ring Road, Jiangsu, Suzhou, No. 1788 Patentee after: SUZHOU NUCLEAR POWER RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA GENERAL NUCLEAR POWER Corp. Address before: 215004 West Ring Road, Jiangsu, Suzhou, No. 1788 Patentee before: SUZHOU NUCLEAR POWER RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA GUANGDONG NUCLEAR POWER GROUP Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151110 Address after: 518031 Guangdong province Futian District Shangbu Road West of the city of Shenzhen Shenzhen science and technology building, 15 Floor Patentee after: LING'AO NUCLEAR POWER Co.,Ltd. Patentee after: SUZHOU NUCLEAR POWER RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA GENERAL NUCLEAR POWER Corp. Address before: 215004 West Ring Road, Jiangsu, Suzhou, No. 1788 Patentee before: SUZHOU NUCLEAR POWER RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA GENERAL NUCLEAR POWER Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20220104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |