CN202939285U - Direct-current circuit breaker ampere-second characteristic test device - Google Patents
Direct-current circuit breaker ampere-second characteristic test device Download PDFInfo
- Publication number
- CN202939285U CN202939285U CN 201220665053 CN201220665053U CN202939285U CN 202939285 U CN202939285 U CN 202939285U CN 201220665053 CN201220665053 CN 201220665053 CN 201220665053 U CN201220665053 U CN 201220665053U CN 202939285 U CN202939285 U CN 202939285U
- Authority
- CN
- China
- Prior art keywords
- module
- power supply
- control
- circuit breaker
- current
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a direct-current circuit breaker ampere-second characteristic test device. The test device comprises a control power supply, a test current feedback shunt, a signal converter, a test current control data acquisition card, an industrial personal computer and a display device. A direct-current circuit breaker to be tested and the test current feedback shunt are serially connected between the positive and negative direct-current output ends of the control power supply, the feedback current output end of the test current feedback shunt is connected with the feedback signal receiving end of the test current control data acquisition card through the signal converter, the control signal transmitting end of the test current control data acquisition card is connected with the control signal receiving end of the control power supply, the PCI port of the industrial personal computer is connected with the PCI port of the test current control data acquisition card through a PCI bus, and the display device is connected with the video signal output end of the industrial personal computer. According to the utility model, advantages of high test current control accuracy and good system stability can be realized, and the ampere-second characteristic test problem with 0-200A miniature direct-current circuit breakers in the industry can be solved.
Description
Technical field
the utility model relates to a kind of isolating switch ampere-time characteristic testing apparatus, specifically a kind of DC circuit breaker ampere-time characteristic proving installation.
Background technology
along with the DC circuit breaker technology improves constantly, the requirement of power grid security level is constantly harsh, and State Grid Corporation of China has stipulated that the DC power supply circuit protection must adopt DC circuit breaker.DC circuit breaker has the characteristics such as reliable in action, simple to operate, easy-to-connect, fault recovery be fast, and in industry, the ampere-time characteristic test for DC circuit breaker is also that special requirement is arranged.
in the industry of isolating switch test at present, the particularly test of DC circuit breaker, because the singularity of its product can not be carried out performance verification to it by the testing apparatus of AC circuit breaker, because the measuring current precision of DC circuit breaker is controlled far above alternating-current measurement.The existing FT-BD DC circuit breaker of take is example, its ampere-time characteristic standard testing requires as follows: under different environment temperatures, controlling 1.13 times of power supply output products rated current tests 1 hour, as defective as fruit product tripping automatic decision product within the test duration of this electric current stopping exported, if do not have tripping judgement product first paragraph testing current qualified, continue 1 hour (from 1.13 to 1.45 times of electric currents must complete in 5S) of 1.45 times of tests of output second segment electric current, if qualified the stopping of tripping automatic decision product exported within the test duration of second segment electric current, if do not have tripping judgement product second segment testing current defective.And all must meet the control accuracy of control electric power outputting current under different environment temperatures in 2/1000 scope.
obviously, current DC circuit breaker is as a kind of product newly developed, can not make the specialized equipment of checking to its ampere-time characteristic in industry, especially can greatly improve the equipment of electric current output accuracy, this testing apparatus is exactly to arise at the historic moment in this case.
Summary of the invention
the utility model purpose is: a kind of DC circuit breaker ampere-time characteristic proving installation is provided, this device is specifically designed to the ampere-time characteristic test of DC circuit breaker, whether performance that can the automatic decision DC circuit breaker meets national standard, and in use control accuracy and the system stability for measuring current is high, can solves the ampere-time characteristic for small-sized DC circuit breaker (0-200A) in industry and test a difficult problem.
the technical solution of the utility model is: a kind of DC circuit breaker ampere-time characteristic proving installation, comprise the control power supply, measuring current feedback shunt, signal converter, measuring current is controlled data collecting card, industrial computer and display, series connection DC circuit breaker to be measured and described measuring current feedback shunt between the positive and negative DC output end of described control power supply, the feedback signal receiving end that the feedback current output terminal of measuring current feedback shunt is controlled data collecting card through signal converter with measuring current is connected, and the control signal issuing side of measuring current control data collecting card is connected with the control signal receiving end of controlling power supply, the PCI port that the PCI port of described industrial computer is controlled data collecting card through pci bus with measuring current is connected, described display is connected with the VT of industrial computer.
further, the utility model also comprises controls power supply self feedback signal data collecting card, this feedback signal receiving end of controlling power supply self feedback signal data collecting card is connected with self feedback signal output terminal of controlling power supply, and the while PCI port of described industrial computer is connected through the PCI port of pci bus and this control power supply self feedback signal data collecting card.
further, described in the utility model, control power supply comprise electrical network detection module, AC transformer, the pre-steady control module of voltage, rectification filtering module, power adjust control module, direct current output module, accessory power supply module, reference voltage module, CV comparison amplifier, CC comparison amplifier, with a door module, sampling driver module, feedback signal output module, sampling module, Isolation Amplifier Module and control signal receiver module, the input termination 220V alternating current of described electrical network detection module, output terminal separates two-way through AC transformer: a road is connected in series the pre-steady control module of voltage successively, rectification filtering module, power is adjusted control module and direct current output module, the described DC circuit breaker to be measured of series connection and measuring current feedback shunt between the positive and negative DC output end of described direct current output module, another Lu Zejing accessory power supply module, after the reference voltage module, with the CV comparison amplifier, with the input end of CC comparison amplifier, be connected respectively, the output terminal of CV comparison amplifier and CC comparison amplifier is connected through with the door module, with power, adjusting control module, the input termination measuring current of described control signal receiver module is controlled the control signal issuing side of data collecting card, and output terminal is connected with the reference voltage module through Isolation Amplifier Module, the feedback signal receiving end of the output terminal of described feedback signal output module and described control power supply self feedback signal data collecting card is connected, input end is connected with the output terminal of CC comparison amplifier with described CV comparison amplifier through sampling module, and the input end of described feedback signal output module is connected with the accessory power supply module through the sampling driver module simultaneously simultaneously.
control power supply in the utility model is mainly used in the required desirable high precision DC current of output test; Industrial computer is mainly used to control data collecting card and control power supply self feedback signal data collecting card and dependence test control software for measuring current platform is provided; Display is mainly used to show dependence test control software and test result (ampere-time characteristic curve).The measuring current that measuring current feedback shunt is mainly used to controlling power supply output is fed back and controls software in conjunction with the industrial computer test and realize closed-loop control.
specific works principle of the present utility model is as follows:
after external 220V power supply powers on to control power supply and industrial computer, connect DC circuit breaker to be measured and close a floodgate, open industrial computer operation test and control software program, electric current and time that industrial computer sets according to the specific requirement that meets the ampere-time characteristic test, by pci bus, allow measuring current control data collecting card output control signal, after receiving signal, passes through the control signal receiver module of controlling power supply the Isolation Amplifier Module processing signals, then the signal of handling well is exported to the CV comparison amplifier by the reference voltage module and the CC comparison amplifier amplifies processing, signal after amplification adjusts through with the door module, being transferred to power the purpose that control module reaches the required DC current of accurate control output test.Simultaneously sampling module and sampling driver module also enter duty and will control the various status informations of power supply and be transferred to control power supply self feedback signal data collecting card by the feedback signal output module, pass to industrial computer through pci bus again, automatically process these reception signals by the industrial computer internal processes and judge that whether control power supply self is working properly.Measuring current feedback shunt feeds back the working current of the DC circuit breaker of current output, form with 0-75mv inputs to the signal converter processing, the signal of having changed is passed to measuring current and is controlled data collecting card, pass to industrial computer through pci bus again, the industrial computer internal processes can carry out the PID processing according to the control signal of current output and the signal fed back, automatic discrimination is at the varying environment temperature, and when exporting working direct current accurately, whether DC circuit breaker is in strict conformity with the requirement of ampere-time characteristic standard testing.The ampere-time characteristic curve negotiating display of differentiating result and DC circuit breaker shows.
the utility model has the advantages that:
1. the utility model is specifically designed to the ampere-time characteristic test of DC circuit breaker, whether performance that can the automatic decision DC circuit breaker meets national standard, and in use control accuracy and the system stability for measuring current is high, can solves the ampere-time characteristic for small-sized DC circuit breaker (0-200A) in industry and test a difficult problem.
2. the utility model adopts high-precision control power supply and industrial computer to match to form closed-loop control system DC circuit breaker is detected, its electric current output control accuracy can reach 0.02, its output ripple can reach 0.001 especially, output current have 0-200A and 0-20A optional, in DC circuit breaker standard testing field at home, maintain the leading position at present, for the quality of product provides more sound assurance.
3, automaticity of the present utility model is high, simple to operate, and all test calculation process all complete automatically in industrial computer inside, and operating personnel only need check that Output rusults just can judge the quality of properties of product by display.
The accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is circuit structure block diagram of the present utility model;
the circuit structure block diagram that Fig. 2 is the further refinement of the utility model.
wherein: 1, control power supply; 2, measuring current feedback shunt; 3, signal converter; 4, measuring current is controlled data collecting card; 5, industrial computer; 6, display; 7, DC circuit breaker; 8, control power supply self feedback signal data collecting card; 9, electrical network detection module; 10, AC transformer; 11, the pre-steady control module of voltage; 12, rectification filtering module; 13, power is adjusted control module; 14, direct current output module; 15, accessory power supply module; 16, reference voltage module; 17, CV comparison amplifier; 18, CC comparison amplifier; 19, with the door module; 20, sampling driver module; 21, feedback signal output module; 22, sampling module; 23, Isolation Amplifier Module; 24, control signal receiver module.
Embodiment
embodiment: as shown in Figure 1, this DC circuit breaker ampere-time characteristic proving installation that the utility model provides is by controlling power supply 1, measuring current feedback shunt 2, signal converter 3, measuring current is controlled in data collecting card 4(the present embodiment and is adopted the PCI8620 data collecting card), industrial computer 5, adopt the PCI2310 data collecting card in display 6 and control power supply self feedback signal data collecting card 8(the present embodiment) the common composition, series connection DC circuit breaker 7 to be measured and described measuring current feedback shunt 2 between the positive and negative DC output end of described control power supply 1, the feedback signal receiving end that the feedback current output terminal of measuring current feedback shunt 2 is controlled data collecting card 4 through signal converter 3 with measuring current is connected, and the control signal issuing side of measuring current control data collecting card 4 is connected with the control signal receiving end of controlling power supply 1, the feedback signal receiving end of described control power supply self feedback signal data collecting card 8 is connected with self feedback signal output terminal of controlling power supply 1, the PCI port of described industrial computer 5 is controlled data collecting card 4 with measuring current respectively through pci bus and is connected with the PCI port of controlling power supply self feedback signal data collecting card 8, and described display 6 is connected with the VT of industrial computer 5.
shown in Fig. 2, the control power supply 1 in the present embodiment is specifically adjusted control module 13, direct current output module 14, accessory power supply module 15, reference voltage module 16, CV comparison amplifier 17, CC comparison amplifier 18, is formed with door module 19, sampling driver module 20, feedback signal output module 21, sampling module 22, Isolation Amplifier Module 23 and control signal receiver module 24 by electrical network detection module 9, AC transformer 10, the pre-steady control module 11 of voltage, rectification filtering module 12, power, the input termination 220V alternating current of described electrical network detection module 9, output terminal separates two-way through AC transformer 10: a road is connected in series the pre-steady control module 11 of voltage successively, rectification filtering module 12, power is adjusted control module 13 and direct current output module 14, the described DC circuit breaker 7 to be measured of series connection and measuring current feedback shunt 2 between the positive and negative DC output end of described direct current output module 14, another Lu Zejing accessory power supply module 15, reference voltage module 16 is rear to be connected with the input end of CC comparison amplifier 18 with CV comparison amplifier 17 respectively, the output terminal of CV comparison amplifier 17 and CC comparison amplifier 18 is connected through with door module 19, with power, adjusting control module 13, the input termination measuring current of described control signal receiver module 24 is controlled the control signal issuing side of data collecting card 4, and output terminal is connected with reference voltage module 16 through Isolation Amplifier Module 23, the feedback signal receiving end of the output terminal of described feedback signal output module 21 and described control power supply self feedback signal data collecting card 8 is connected, input end is connected with the output terminal of CC comparison amplifier 18 with described CV comparison amplifier 17 through sampling module 22, and the input end of described feedback signal output module 21 is connected with accessory power supply module 15 through sampling driver module 20 simultaneously simultaneously.
it is example that the present embodiment be take the ampere-time characteristic test of FT-BD DC circuit breaker (0-200A), its ampere-time characteristic standard testing requires as follows: under different environment temperatures, controlling 1.13 times of power supply 1 output products rated current tests 1 hour, as defective as fruit product tripping automatic decision product within the test duration of this electric current stopping exported, if do not have tripping judgement product first paragraph testing current qualified, continue 1 hour (from 1.13 to 1.45 times of electric currents must complete in 5S) of 1.45 times of tests of output second segment electric current, if qualified the stopping of tripping automatic decision product exported within the test duration of second segment electric current, if do not have tripping judgement product second segment testing current defective.And all must meet the control accuracy of control power supply 1 output current under different environment temperatures in 2/1000 scope.
the ampere-time characteristic test job principle that the present embodiment carries out above-mentioned FT-BD DC circuit breaker is as follows:
in conjunction with Fig. 1, shown in Fig. 2, after external 220V power supply powers on to control power supply 1 and industrial computer 5, connect DC circuit breaker to be measured 7 and close a floodgate, open industrial computer 5 operation tests and control software program, electric current and time that industrial computer 5 sets according to the specific requirement that meets the ampere-time characteristic test, by pci bus, allow measuring current control data collecting card 4 output control signals, after receiving signal, passes through the control signal receiver module 24 of controlling power supply 1 Isolation Amplifier Module 23 processing signals, then the signal of handling well is exported to CV comparison amplifier 17 by reference voltage module 16 and CC comparison amplifier 18 amplifies processing, signal after amplification adjusts through with door module 19, being transferred to power the purpose that control module 13 reaches the required DC current of accurate control output test.Simultaneously sampling module 22 and sampling driver module 20 also enter duty and will control the various status informations of power supply 1 and be transferred to control power supply self feedback signal data collecting card 8 by feedback signal output module 21, pass to industrial computer 5 through pci bus again, automatically process these by industrial computer 5 internal processes and receive signals and judge that whether control power supply 1 self working properly.The working current of the DC circuit breaker 7 of the current output of measuring current feedback shunt 2 feedback, form with 0-75mv inputs to signal converter 3 processing, the signal of having changed is passed to measuring current and is controlled data collecting card 4, pass to industrial computer 5 through pci bus again, industrial computer 5 internal processes can carry out the PID processing according to the control signal of current output and the signal fed back, automatic discrimination is at the varying environment temperature, and when exporting working direct current accurately, whether DC circuit breaker 7 is in strict conformity with the requirement of ampere-time characteristic standard testing.The ampere-time characteristic curve negotiating display 6 of differentiating result and DC circuit breaker 7 shows.
certainly above-described embodiment is only explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the Spirit Essence of the utility model main technical schemes or modification, within all should being encompassed in protection domain of the present utility model.
Claims (3)
1. a DC circuit breaker ampere-time characteristic proving installation, comprise and control power supply (1), measuring current feedback shunt (2), signal converter (3), measuring current is controlled data collecting card (4), industrial computer (5) and display (6), series connection DC circuit breaker to be measured (7) and described measuring current feedback shunt (2) between the positive and negative DC output end of described control power supply (1), the feedback signal receiving end that the feedback current output terminal of measuring current feedback shunt (2) is controlled data collecting card (4) through signal converter (3) with measuring current is connected, and the control signal issuing side of measuring current control data collecting card (4) is connected with the control signal receiving end of controlling power supply (1), the PCI port that the PCI port of described industrial computer (5) is controlled data collecting card (4) through pci bus with measuring current is connected, described display (6) is connected with the VT of industrial computer (5).
2. DC circuit breaker ampere-time characteristic proving installation according to claim 1, characterized by further comprising and control power supply self feedback signal data collecting card (8), this feedback signal receiving end of controlling power supply self feedback signal data collecting card (8) is connected with self feedback signal output terminal of controlling power supply (1), and the PCI port of described industrial computer of while (5) is connected through the PCI port of pci bus and this control power supply self feedback signal data collecting card (8).
3. DC circuit breaker ampere-time characteristic proving installation according to claim 2, it is characterized in that described control power supply (1) comprises electrical network detection module (9), AC transformer (10), the pre-steady control module (11) of voltage, rectification filtering module (12), power is adjusted control module (13), direct current output module (14), accessory power supply module (15), reference voltage module (16), CV comparison amplifier (17), CC comparison amplifier (18), with door module (19), sampling driver module (20), feedback signal output module (21), sampling module (22), Isolation Amplifier Module (23) and control signal receiver module (24), the input termination 220V alternating current of described electrical network detection module (9), output terminal separates two-way through AC transformer (10): a road is connected in series the pre-steady control module (11) of voltage successively, rectification filtering module (12), power is adjusted control module (13) and direct current output module (14), series connection described DC circuit breaker to be measured (7) and measuring current feedback shunt (2) between the positive and negative DC output end of described direct current output module (14), another Lu Zejing accessory power supply module (15), after reference voltage module (16), with CV comparison amplifier (17), with the input end of CC comparison amplifier (18), be connected respectively, the output terminal of CV comparison amplifier (17) and CC comparison amplifier (18) is connected through with door module (19), with power, adjusting control module (13), the input termination measuring current of described control signal receiver module (24) is controlled the control signal issuing side of data collecting card (4), and output terminal is connected with reference voltage module (16) through Isolation Amplifier Module (23), the feedback signal receiving end of the output terminal of described feedback signal output module (21) and described control power supply self feedback signal data collecting card (8) is connected, input end is connected with the output terminal of CC comparison amplifier (18) with described CV comparison amplifier (17) through sampling module (22), and the input end of described feedback signal output module (21) is connected with accessory power supply module (15) through sampling driver module (20) simultaneously simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665053 CN202939285U (en) | 2012-12-06 | 2012-12-06 | Direct-current circuit breaker ampere-second characteristic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665053 CN202939285U (en) | 2012-12-06 | 2012-12-06 | Direct-current circuit breaker ampere-second characteristic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939285U true CN202939285U (en) | 2013-05-15 |
Family
ID=48323516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220665053 Withdrawn - After Issue CN202939285U (en) | 2012-12-06 | 2012-12-06 | Direct-current circuit breaker ampere-second characteristic test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944838A (en) * | 2012-12-06 | 2013-02-27 | 法泰电器（江苏）股份有限公司 | Ampere-second feature test device for direct current breaker |
| CN112485663A (en) * | 2020-11-26 | 2021-03-12 | 国营芜湖机械厂 | Online detection device and detection method for aircraft circuit breaker |
-
2012
- 2012-12-06 CN CN 201220665053 patent/CN202939285U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944838A (en) * | 2012-12-06 | 2013-02-27 | 法泰电器（江苏）股份有限公司 | Ampere-second feature test device for direct current breaker |
| CN102944838B (en) * | 2012-12-06 | 2015-03-25 | 法泰电器（江苏）股份有限公司 | Ampere-second feature test device for direct current breaker |
| CN112485663A (en) * | 2020-11-26 | 2021-03-12 | 国营芜湖机械厂 | Online detection device and detection method for aircraft circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203324463U (en) | Performance test and evaluation platform for small-current grounding line selection device | |
| CN203101613U (en) | Device for testing portable energy storage battery management system | |
| CN204302347U (en) | Microcomputer-recognized intelligent universal meter | |
| CN105067998A (en) | Voltage and current fluctuation detector | |
| CN202939285U (en) | Direct-current circuit breaker ampere-second characteristic test device | |
| CN104049219A (en) | Automatic test instrument for power source test | |
| CN102944838B (en) | Ampere-second feature test device for direct current breaker | |
| CN104101787A (en) | Portable low-voltage reactive compensation standard detection system and detection method | |
| CN105467218A (en) | Contact resistance testing method of circuit breaker used for short-circuit protection | |
| CN211785826U (en) | Mobile charging pile testing device | |
| CN104090254A (en) | Current transformer process error detection device and control method | |
| CN202159123U (en) | Portable detection instrument of characteristics of direct-current circuit breaker | |
| CN201319049Y (en) | High-tension current mutual-inductor transformation ratio tester | |
| CN111257645A (en) | Device and method for testing direct current resistance of auxiliary contact of high-voltage and low-voltage circuit breakers | |
| CN201247301Y (en) | Apparatus for measuring isonym end of portable current transformer | |
| CN203178469U (en) | Portable transmitter verification meter | |
| CN202548231U (en) | Detection device for substation merging unit | |
| CN103954869A (en) | Cable power frequency parameter testing device based on PXI system | |
| CN104331115B (en) | A kind of circuit and method eliminating PT secondary circuit voltage drop | |
| CN203365596U (en) | Intelligent microcomputer relay protection rapid testing device | |
| CN202870261U (en) | Test device used for checking 40 DEG C temperature environment and anti-aging performance of electronic component | |
| CN202939298U (en) | Alternating current sampling transmitter calibration instrument | |
| CN106970259B (en) | Low-voltage alternating current wireless monitoring device | |
| CN201464596U (en) | Electronic transducer polarity detecting system | |
| CN203133169U (en) | Device employing novel wiring method for detecting current harmonic quality |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130515 Effective date of abandoning: 20150325 |
|
| RGAV | Abandon patent right to avoid regrant |