CN105372587A - High-voltage switch characteristic detection system using image measurement technology - Google Patents
High-voltage switch characteristic detection system using image measurement technology Download PDFInfo
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- CN105372587A CN105372587A CN201510812250.XA CN201510812250A CN105372587A CN 105372587 A CN105372587 A CN 105372587A CN 201510812250 A CN201510812250 A CN 201510812250A CN 105372587 A CN105372587 A CN 105372587A
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- voltage switch
- switch
- computing machine
- output terminal
- circuit breaker
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
Abstract
The invention discloses a high-voltage switch characteristic detection system using image measurement technology. The high-voltage switch characteristic detection system comprises a high-voltage switch (circuit breaker); the output end of the high-voltage switch (circuit breaker) is connected with a CCD camera; the output end of the CCD camera is connected with an image acquisition device; the image acquisition device is connected with a computer; the output end of the CCD camera is also connected with a TTL flip-flop; the TTL flip-flop is connected with a switch signal detector; the input end of the switch signal detector is connected with the high-voltage switch (circuit breaker); the output end of the switch signal detector is connected with a timing connecting device; the output end of the timing connecting device is connected with the computer; the output end of the computer is connected with a switch control power source; the output end of the switch control power source is connected with a tripping coil; the tripping coil is in linkage with the normally-closed contact of the high-voltage switch (circuit breaker); and the computer is connected with a parameter calculation module and a relational database, and is provided with a communication interface, and is connected with a display device. According to the high-voltage switch characteristic detection system of the invention, advanced control equipment is adopted, so that detection can be more accurate.
Description
Technical field
The present invention relates to electric system high-voltage switch gear detection technique field, specifically, relate to the high-voltage switch gear Characteristics Detection system utilizing image measurement technology.
Background technology
Along with the continuous expansion of electric system scale and the in-depth more of power control technology, the control system of switching on or off electricity devices such as various high-voltage switch gears are applied more and more widely.When electric system normally runs, carry out switching the method for operation with it, equipment or circuit place in circuit or out of service, play control action; When electrical equipment or line failure, isolating switch is used for excising fault fast, ensures that no failure part normally runs, shields.Visible, at operation divide-shut brake, the high-voltage switch that cut-offs of important load plays extremely important effect.When there are abnormal conditions in electric system, high-voltage switch gear according to dynamic, malfunction, slow point and severe three-phase, same period etc., mechanical fault all may not cause serious accident, even equipment explosion can be caused, unfavorable and loss is brought to the stable of electric system and national wealth, a large amount of statistics shows, about 80% of high-voltage switch gear accident is caused by mechanical fault.
In view of the significance of high-voltage switch gear in electric system, ensure its stable and accurate opening and closing action, to ensureing that the safe and stable operation of using electricity system has great significance.Therefore, test the mechanical property of high-voltage switch gear, whether the various parameters understanding high-voltage switch gear are normal, thus safeguard timely and maintenance seems particularly important.Mechanical property for high pressure open circuit detects, and mainly equipment handing-over and power off time combine maintenance and regularly carry out preventive trial, change parts and carry out the mechanical property inspection of operating mechanism.In conventional test methodologies in early days, maintainer uses electrical secondmeter, synchronizing lamp, light oscillograph, hertz oscilltor and rotary drum knotmeter etc. to test.These equipment carry inconvenience, and these methods not only take on-the-spot area greatly, and test duration line is complicated, and the data reading record will carry out artificial treatment and calculating, and the error of measurement is large, and the time of service work is long.
The nineties, by the utilization of analog and digital circuit technology, successively develop cluster case type breaker mechanic property tester of having gone into operation.This quasi-instrument combines the measurement function of above-mentioned part instrument, simplifies test connection and operation, and has the advantages such as easy to carry.But it still adopts traditional techniques and methods, by silicon controlled rectifier direct current power supply velometer control circuit, gating circuit and timing displaing circuit and the same period part such as lamp form, the shortcoming such as have that automaticity is low, measuring error large and function is not strong.There is microcomputer type high-voltage switch mechanical characteristic tester afterwards, but its range rate error is large, conducting rod total kilometres and conducting rod over travel measuring accuracy low, do not reach measuring accuracy to speed, stroke, over travel.Therefore be eliminated gradually.
Although the precision of some sensor itself is higher, the fixture still not solving sensor installs a complicated difficult problem.The fixture of sensor installs length consuming time, and different switch needs to change different fixture, wasting manpower and material resources and time
Summary of the invention
The object of the invention is to the weak point overcoming above-mentioned conventional art, the present invention's design utilizes the high-voltage switch gear Characteristics Detection system of image measurement technology, for problems such as sectional fixture complexity in existing measuring method, length consuming time, efficiency are low, the non-contact type high voltage switch machine characteristic test method of main research image measurement technology.Utilize ccd video camera to substitute traditional sensor, by computing machine, the image of high-voltage switch gear linkage portion componental movement track and the electric signal that gathers are analyzed, calculate surveyed high-voltage switch gear mechanical parameter.
For solving the problem, the technical solution adopted in the present invention is:
Utilize the high-voltage switch gear Characteristics Detection system of image measurement technology, comprise high-voltage switch gear (isolating switch), the output terminal of described high-voltage switch gear (isolating switch) is connected with CCD camera, described CCD camera output terminal is connected with image acquisition connection device, and described image acquisition connection device is connected with computing machine;
Described CCD camera output terminal is also connected with TTL trigger, described TTL trigger is connected with switched electrical signal detecting device, described switched electrical signal detecting device input end is connected with high-voltage switch gear (isolating switch), the output terminal of described switched electrical signal detecting device is connected with timing connection device, and the output terminal of described timing connection device is connected with computing machine;
The output terminal of described computing machine is connected with switch control rule power supply, and the output terminal of described switch control rule power supply is connected with tripping coil, and the normally closed contact of described tripping coil and high-voltage switch gear (isolating switch) links;
Described computing machine is connected with parameter calculating module and relational database, and described computing machine and parameter calculating module, relational database are and are bi-directionally connected;
Described computing machine is provided with communication interface, and described computing machine is connected with display device;
Described high-voltage switch gear (isolating switch) is vacuum circuit breaker, and described vacuum circuit breaker comprises switch spindle, insulation push rod, kinematic link, tripod connecting lever, touch spring, tripping spring, arc-chutes moving conductive rod, buckle, semiaxis dropout, auxiliary switch, switching winding, closing coil;
The closing operation process of vacuum circuit breaker:
Closing coil obtains electric-electric brake unshakable in one's determination to be pushed away before action-push rod is rotated-insulated to kinematic link action-switch spindle-and triangle connecting lever rotates-presses down touch spring device-arc-chutes moving conductive rod and move downward and make contact-touch spring be compressed to contacting travel terminal-auxiliary switch to cut off contactor coil power supply-tripping spring and elongate energy storage-semiaxis buckle and keep closing position-combined floodgates end
The closing operation process of vacuum circuit breaker:
Switching winding obtains electric-separating brake iron core action-buckle and semiaxis is threaded off-isolating switch under the effect of touch spring and tripping spring rapidly disjunction-auxiliary switch cut off switching winding power supply-tripping spring and remain on open position-separating brake and terminate.
One as technique scheme is improved:
Described computing machine connects into internet.
One as technique scheme is improved:
Described computing machine is provided with printing device connector.
Owing to have employed technique scheme, compared with prior art, effective image information when the present invention ensures high-voltage switch gear (isolating switch) action and quick and complete the collecting in computing machine of electric signal.No matter during when closing coil or switching winding energising, the parts such as bolt, moving contact can reflect the mechanical property of breaker actuation normally.After the extrinsic information of system acquisition reflection High Voltage Breaker Mechanical Characteristic, and then it is researched and analysed, the effective information of therefrom extraction equipment operation.
The breaker actuation time reaches Millisecond, so have quite high requirement to collecting device glistening light of waves speed, CCD camera adopts digital camera high-speed capture, the picture photographed is transferred to computing machine by synchronous or asynchronous system, the material such as cable, optical fiber generally selected by transmission equipment, meets the condition of high-speed transfer.CCD camera has self-scanning, high resolving power, high sensitivity, compact conformation and location of pixels characteristic accurately, the CCD camera of high exposure rate completes image acquisition task, its frame per second per second can reach 100-200 frame, meet image information collecting requirement, data transmission technology adopts kilomega network transmission technology popular at present, adopt digital transmission, transfer rate is faster, distance more covers with the requirement of sufficient native system to image acquisition, transmission, only need be connected a gigabit network cable download respective drive can use between CCD camera with computer, reduce cost.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that the present invention utilizes the high-voltage switch gear Characteristics Detection system of image measurement technology.
In figure: 1-high-voltage switch gear (isolating switch); 2-CCD camera; 3-image acquisition connection device; 4-parameter calculating module; 5-display device; 6-switched electrical signal detecting device; 7-timing connection device; 8-computing machine; 9-relational database; 10-de-mouth coil; 11-switch control rule source; 12-communication interface; 13-TTL trigger.
Embodiment
Embodiment:
As shown in Figure 1, utilize the high-voltage switch gear Characteristics Detection system of image measurement technology, comprise high-voltage switch gear (isolating switch) 1, the output terminal of described high-voltage switch gear (isolating switch) 1 is connected with CCD camera 2, described CCD camera 2 output terminal is connected with image acquisition connection device 3, and described image acquisition connection device 3 is connected with computing machine 8;
Described CCD camera 2 output terminal is also connected with TTL trigger 13, described TTL trigger 13 is connected with switched electrical signal detecting device 6, described switched electrical signal detecting device input end is connected with high-voltage switch gear (isolating switch) 1, the output terminal of described switched electrical signal detecting device 6 is connected with timing connection device 7, and the output terminal of described timing connection device 7 is connected with computing machine 8;
The output terminal of described computing machine 8 is connected with switch control rule power supply 11, and the output terminal of described switch control rule power supply 11 is connected with tripping coil 10, and described tripping coil 10 links with the normally closed contact of high-voltage switch gear (isolating switch) 1;
Described computing machine 8 is connected with parameter calculating module 4 and relational database 9, and described computing machine 8 is is bi-directionally connected with parameter calculating module 4, relational database 9;
Described computing machine 8 is provided with communication interface 12, and described computing machine 8 is connected with display device 5;
Described high-voltage switch gear (isolating switch) 1 is vacuum circuit breaker, and described vacuum circuit breaker comprises switch spindle, insulation push rod, kinematic link, tripod connecting lever, touch spring, tripping spring, arc-chutes moving conductive rod, buckle, semiaxis dropout, auxiliary switch, switching winding, closing coil;
The closing operation process of vacuum circuit breaker:
Closing coil obtains electric-electric brake unshakable in one's determination to be pushed away before action-push rod is rotated-insulated to kinematic link action-switch spindle-and triangle connecting lever rotates-presses down touch spring device-arc-chutes moving conductive rod and move downward and make contact-touch spring be compressed to contacting travel terminal-auxiliary switch to cut off contactor coil power supply-tripping spring and elongate energy storage-semiaxis buckle and keep closing position-combined floodgates end
The closing operation process of vacuum circuit breaker:
Switching winding obtains electric-separating brake iron core action-buckle and semiaxis is threaded off-isolating switch under the effect of touch spring and tripping spring rapidly disjunction-auxiliary switch cut off switching winding power supply-tripping spring and remain on open position-separating brake and terminate.
Described computing machine 8 connects into internet.
Described computing machine 8 is provided with printing device connector.
Claims (3)
1. utilize the high-voltage switch gear Characteristics Detection system of image measurement technology, it is characterized in that: comprise high-voltage switch gear (isolating switch) (1), the output terminal of described high-voltage switch gear (isolating switch) (1) is connected with CCD camera (2), described CCD camera (2) output terminal is connected with image acquisition connection device (3), and described image acquisition connection device (3) is connected with computing machine (8);
Described CCD camera (2) output terminal is also connected with TTL trigger (13), described TTL trigger (13) is connected with switched electrical signal detecting device (6), described switched electrical signal detecting device input end is connected with high-voltage switch gear (isolating switch) (1), the output terminal of described switched electrical signal detecting device (6) is connected with timing connection device (7), and the output terminal of described timing connection device (7) is connected with computing machine (8);
The output terminal of described computing machine (8) is connected with switch control rule power supply (11), the output terminal of described switch control rule power supply (11) is connected with tripping coil (10), and described tripping coil (10) links with the normally closed contact of high-voltage switch gear (isolating switch) (1);
Described computing machine (8) is connected with parameter calculating module (4) and relational database (9), and described computing machine (8) and parameter calculating module (4), relational database (9) are and are bi-directionally connected;
Described computing machine (8) is provided with communication interface (12), and described computing machine (8) is connected with display device (5);
Described high-voltage switch gear (isolating switch) (1) is vacuum circuit breaker, and described vacuum circuit breaker comprises switch spindle, insulation push rod, kinematic link, tripod connecting lever, touch spring, tripping spring, arc-chutes moving conductive rod, buckle, semiaxis dropout, auxiliary switch, switching winding, closing coil;
The closing operation process of vacuum circuit breaker:
Closing coil obtains electric-electric brake unshakable in one's determination to be pushed away before action-push rod is rotated-insulated to kinematic link action-switch spindle-and triangle connecting lever rotates-presses down touch spring device-arc-chutes moving conductive rod and move downward and make contact-touch spring be compressed to contacting travel terminal-auxiliary switch to cut off contactor coil power supply-tripping spring and elongate energy storage-semiaxis buckle and keep closing position-combined floodgates end
The closing operation process of vacuum circuit breaker:
Switching winding obtains electric-separating brake iron core action-buckle and semiaxis is threaded off-isolating switch under the effect of touch spring and tripping spring rapidly disjunction-auxiliary switch cut off switching winding power supply-tripping spring and remain on open position-separating brake and terminate.
2. the high-voltage switch gear Characteristics Detection system utilizing image measurement technology according to claim 1, is characterized in that: described computing machine (8) connects into internet.
3. the high-voltage switch gear Characteristics Detection system utilizing image measurement technology according to claim 1 and 2, is characterized in that: described computing machine (8) is provided with printing device connector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510812250.XA CN105372587A (en) | 2015-11-20 | 2015-11-20 | High-voltage switch characteristic detection system using image measurement technology |
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| CN201510812250.XA CN105372587A (en) | 2015-11-20 | 2015-11-20 | High-voltage switch characteristic detection system using image measurement technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601376A (en) * | 2019-09-11 | 2019-12-20 | 国网陕西省电力公司咸阳供电公司 | High-voltage isolating switch closing in-place monitoring device and method |
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| CN202524167U (en) * | 2012-03-16 | 2012-11-07 | 扬州易达科技有限责任公司 | A state detection and intelligent control device for high-voltage circuit breaker |
| CN103822781A (en) * | 2014-03-14 | 2014-05-28 | 云南电力试验研究院（集团）有限公司电力研究院 | Mechanical property detection method of non-contact breaker |
| CN103913304A (en) * | 2014-03-28 | 2014-07-09 | 云南电力试验研究院（集团）有限公司电力研究院 | Non-contact type four-in-one breaker testing and mechanical fault identification system |
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- 2015-11-20 CN CN201510812250.XA patent/CN105372587A/en active Pending
Patent Citations (4)
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| KR20120106149A (en) * | 2011-03-17 | 2012-09-26 | 현대중공업 주식회사 | A vision-based method for monitoring stroke position of es/ds in gis |
| CN202524167U (en) * | 2012-03-16 | 2012-11-07 | 扬州易达科技有限责任公司 | A state detection and intelligent control device for high-voltage circuit breaker |
| CN103822781A (en) * | 2014-03-14 | 2014-05-28 | 云南电力试验研究院（集团）有限公司电力研究院 | Mechanical property detection method of non-contact breaker |
| CN103913304A (en) * | 2014-03-28 | 2014-07-09 | 云南电力试验研究院（集团）有限公司电力研究院 | Non-contact type four-in-one breaker testing and mechanical fault identification system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110601376A (en) * | 2019-09-11 | 2019-12-20 | 国网陕西省电力公司咸阳供电公司 | High-voltage isolating switch closing in-place monitoring device and method |
| CN110601376B (en) * | 2019-09-11 | 2022-05-03 | 国网陕西省电力公司咸阳供电公司 | High-voltage isolating switch closing in-place monitoring device and method |
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Application publication date: 20160302 |
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