CN204575810U - A kind of miniature circuit breaker temporal properties auto-test-bed - Google Patents
A kind of miniature circuit breaker temporal properties auto-test-bed Download PDFInfo
- Publication number
- CN204575810U CN204575810U CN201520072578.8U CN201520072578U CN204575810U CN 204575810 U CN204575810 U CN 204575810U CN 201520072578 U CN201520072578 U CN 201520072578U CN 204575810 U CN204575810 U CN 204575810U
- Authority
- CN
- China
- Prior art keywords
- signal
- test
- circuit
- current
- stage body
- 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.)
- Active
Links
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
A kind of miniature circuit breaker temporal properties auto-test-bed, comprise stage body, be arranged on the ceiling light on edge under stage body top, be arranged on the touch display screen on stage body top, be arranged on the circuit protecting switch on the left of touch display screen, be arranged on the working signal lamp on the right side of touch display screen, be arranged on the test fixture of touch display screen bottom, be arranged on the work top in the middle part of stage body, be arranged on the casing of stage body bottom, be arranged on the rolling castor of bottom half corner, automatic instantaneous source and various Electric appliance hardware is provided with in described casing, this test platform structure is attractive and durable, easy for operation simple and direct, energy Lookup protocol and the transient assays electric current needed for output, bipolar analog signal is converted to unipolarity simulating signal by the signal conditioning circuit adopted due to described automatic instantaneous source, and in signal sampling, the method for high speed pointwise sampling is adopted by software, reduce original signal to greatest extent, these methods can not introduce the non-linear of signal and trueness error, cause the test error of automatic instantaneous source less.
Description
Technical field
The utility model relates to a kind of electric appliance test stand, particularly relates to a kind of miniature circuit breaker temporal properties auto-test-bed.
Background technology
Isolating switch is a kind of conventional protective device, overload and short-circuit protection effect is played in for electric line, in order to ensure the product quality of isolating switch, detection check must be carried out by the instantaneous protection feature of testing table to isolating switch when isolating switch dispatches from the factory, traditional temporal properties testing table is plastic-blasting stage body fixed sturcture, experiment power supply can not export the test current of setting automatically, manually on pressure regulator, simulate operating condition of test tests out required test current to needs, this often needs the test adjustment carried out repeatedly just can obtain the test current set, simulate stream test the same not to the utmost with actual tests operating mode simultaneously, often cause the generation of test error.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of conventional small isolating switch temporal properties testing table contour structures and complex operation, defect that test error is larger, disclose a kind of contour structures both artistic and practical, easy to use, automatically can export the miniature circuit breaker temporal properties auto-test-bed of setting test current.
To achieve these goals, the technical solution adopted in the utility model is: comprise stage body, be arranged on the ceiling light on edge under stage body top, be arranged on the touch display screen on stage body top, be arranged on the circuit protecting switch on the left of touch display screen, be arranged on the working signal lamp on the right side of touch display screen, be arranged on the test fixture of touch display screen bottom, be arranged on the work top in the middle part of stage body, be arranged on the casing of stage body bottom, be arranged on the rolling castor of bottom half corner, it is characterized in that: in described casing, be provided with automatic instantaneous source and other various electrical hardware, described automatic instantaneous source is provided with the R485 communication interface circuit and current output interface that to carry out with touch display screen communicating.
Further setting, described electrical hardware comprises automatic instantaneous source, current lifting device, current transformer and test fixture, they connect like this: described automatic instantaneous source exports and connects the elementary of current lifting device, the secondary elementary rear and described test fixture connecing current transformer of described current lifting device forms test loop, the secondary control signal terminal connecing automatic instantaneous source of described current transformer.
Further setting, described automatic instantaneous source comprises the system control cpu and stabilized voltage supply that are made up of microprocessor, described system control cpu comprises power circuit, signal acquisition circuit, signal conditioning circuit, single chip machine controlling circuit, signal output apparatus, time base circuit, communication interface circuit and display circuit, described signal acquisition circuit inputs to signal conditioning circuit after obtaining the control signal of load current by current transformer, described signal conditioning circuit delivers to single-chip microcomputer A/D after the bipolar analog load current signal collected is converted to unipolarity fictitious load current signal changes input interface, by the specific program be built in single-chip microcomputer after high speed pointwise is sampled, the peak value of load current signal is obtained by mathematical computations, effective value, the parameter in cycle, then calculating is compared according to the test current set and load current signal, output control signals to described stabilized voltage supply, again by stabilized voltage supply according to elementary to described current lifting device of the trial voltage of control signal stable output, by the test current of the secondary stable output of current lifting device, the described stabilized voltage supply reaction time wants fast, output power is enough large, otherwise make stabilized voltage supply pressure drop produce waveform distortion too greatly owing to exporting larger load current.
Further setting, the skeleton of described testing table adopts industrial aluminum profile, and described work top is set to corrosion resistant plate, and described rolling castor has height adjustment mechanism and braking mechanism.
During this testing table work, operation is very simple and direct, only need pre-set test current on touch display screen, tested miniature circuit breaker is placed in described test fixture, after manually pressing test fixture call through test loop, namely tested miniature circuit breaker is automatically tested under the test current of setting, display and storage test result, described test fixture is set to overpay, with the test needs of the tested miniature circuit breaker of applicable Multiple Type specification, the skeleton of described testing table adopts industrial aluminum profile, work top is set to corrosion resistant plate, make the structure of testing table attractive and durable, described rolling castor has height adjustment mechanism and braking mechanism, the design of this hommization makes it the operating personnel that testing table can be applicable to out-of-flatness ground and applicable differing heights and tests, the simultaneously movement of convenient testing table and fixed point use.
The beneficial effect that the miniature circuit breaker temporal properties auto-test-bed of above structure has is: this test platform structure is attractive and durable, easy for operation simple and direct, because bipolar analog signal is converted to unipolarity simulating signal by the signal conditioning circuit of described automatic instantaneous source, and in signal sampling, the method for high speed pointwise sampling is adopted by software, reduce original signal to greatest extent, these methods can not introduce the non-linear of signal and trueness error, cause the test error of automatic instantaneous source less.
Accompanying drawing explanation
Fig. 1 is appearance integral structural drawing of the present utility model;
Fig. 2 is the inner structure main line figure of Fig. 1;
Fig. 3 is the principle of work block scheme of the automatic instantaneous source of Fig. 1.
Fig. 4 is the rolling Castor structure figure of Fig. 1.
Embodiment
Composition graphs 1-Fig. 4, by specific embodiment, is suitable for novel being described further to this.
A kind of miniature circuit breaker temporal properties auto-test-bed, as Fig. 1, comprise stage body 4, be arranged on the ceiling light on edge under stage body 4 top, be arranged on the touch display screen 1 on stage body 4 top, be arranged on the circuit protecting switch 2 on the left of touch display screen 1, be arranged on the working signal lamp 9 on the right side of touch display screen 4, be arranged on the test fixture 3 of touch display screen 4 bottom, be arranged on the work top 8 in the middle part of stage body 4, be arranged on the casing 7 of stage body 4 bottom, be arranged on the rolling castor 6 of corner bottom casing 7, automatic instantaneous source and various electrical hardware is provided with in described casing 7, described automatic instantaneous source 701 is provided with the R485 communication interface circuit and current output interface that to carry out with touch display screen 1 communicating.
Further setting, as Fig. 2, described electrical hardware comprises automatic instantaneous source 701, current lifting device 702, current transformer 703 and test fixture 4, they connect like this: described automatic instantaneous source 701 exports and connects the elementary of current lifting device 702, the secondary elementary rear and described test fixture 4 connecing current transformer 703 of described current lifting device 702 forms test loop, the secondary control signal terminal connecing automatic instantaneous source 701 of described current transformer.
Further setting, as Fig. 3, described automatic instantaneous source comprises the system control cpu and stabilized voltage supply that are made up of microprocessor, described system control cpu comprises power circuit, signal acquisition circuit, signal conditioning circuit, single chip machine controlling circuit, signal output apparatus, time base circuit, communication interface circuit and display circuit, it is characterized in that: described signal acquisition circuit inputs to signal conditioning circuit after obtaining the control signal of load current by current transformer, described signal conditioning circuit delivers to single-chip microcomputer A/D after the bipolar analog load current signal collected is converted to unipolarity fictitious load current signal changes input interface, by the specific program be built in single-chip microcomputer after high speed pointwise is sampled, the peak value of load current signal is obtained by mathematical computations, effective value, the parameters such as cycle, then calculating is compared according to the test current set and load current signal, output control signals to stabilized voltage supply, again by stabilized voltage supply according to elementary to described current lifting device of the trial voltage of control signal stable output, by the test current of the secondary stable output of current lifting device.
Further setting, as Fig. 1, Fig. 4, the skeleton 5 of described testing table adopts industrial aluminum profile, and described work top 8 is set to 1.2mm corrosion resistant plate, and described rolling castor 6 has scroll wheel 603, height adjustment mechanism 601 and braking mechanism 602.
Claims (3)
1. a miniature circuit breaker temporal properties auto-test-bed, comprise stage body, be arranged on the ceiling light on edge under stage body top, be arranged on the touch display screen on stage body top, be arranged on the circuit protecting switch on the left of touch display screen, be arranged on the working signal lamp on the right side of touch display screen, be arranged on the test fixture of touch display screen bottom, be arranged on the work top in the middle part of stage body, be arranged on the casing of stage body bottom, be arranged on the rolling castor of bottom half corner, it is characterized in that: in described casing, be provided with automatic instantaneous source and other various electrical hardware, described automatic instantaneous source is provided with the R485 communication interface circuit and current output interface that to carry out with touch display screen communicating.
2. miniature circuit breaker temporal properties auto-test-bed according to claim 1, it is characterized in that: described electrical hardware comprises automatic instantaneous source, current lifting device, current transformer and test fixture, they connect like this: described automatic instantaneous source exports and connects the elementary of current lifting device, the secondary elementary rear and described test fixture connecing current transformer of described current lifting device forms test loop, the secondary control signal terminal connecing automatic instantaneous source of described current transformer.
3. miniature circuit breaker temporal properties auto-test-bed according to claim 2, it is characterized in that described automatic instantaneous source comprises the system control cpu and stabilized voltage supply be made up of microprocessor, described system control cpu comprises power circuit, signal acquisition circuit, signal conditioning circuit, single chip machine controlling circuit, signal output apparatus, time base circuit, communication interface circuit and display circuit, described signal acquisition circuit inputs to signal conditioning circuit after obtaining the control signal of load current by current transformer, described signal conditioning circuit delivers to single-chip microcomputer A/D after the bipolar analog load current signal collected is converted to unipolarity fictitious load current signal changes input interface, by the specific program be built in single-chip microcomputer after high speed pointwise is sampled, the peak value of load current signal is obtained by mathematical computations, effective value, the parameter in cycle, then calculating is compared according to the test current set and load current signal, output control signals to described stabilized voltage supply, again by stabilized voltage supply according to elementary to described current lifting device of the trial voltage of control signal stable output, by the stability test electric current needed for the secondary output of current lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072578.8U CN204575810U (en) | 2015-01-29 | 2015-01-29 | A kind of miniature circuit breaker temporal properties auto-test-bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072578.8U CN204575810U (en) | 2015-01-29 | 2015-01-29 | A kind of miniature circuit breaker temporal properties auto-test-bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204575810U true CN204575810U (en) | 2015-08-19 |
Family
ID=53868428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520072578.8U Active CN204575810U (en) | 2015-01-29 | 2015-01-29 | A kind of miniature circuit breaker temporal properties auto-test-bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204575810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771998A (en) * | 2016-11-22 | 2017-05-31 | 国网山东省电力公司东营供电公司 | A kind of tester for testing RCCB |
| CN107276423A (en) * | 2016-07-19 | 2017-10-20 | 北京电力自动化设备有限公司 | Ship shore electric power power model adjustment method |
-
2015
- 2015-01-29 CN CN201520072578.8U patent/CN204575810U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107276423A (en) * | 2016-07-19 | 2017-10-20 | 北京电力自动化设备有限公司 | Ship shore electric power power model adjustment method |
| CN107276423B (en) * | 2016-07-19 | 2019-05-31 | 北京电力自动化设备有限公司 | Ship shore electric power power module adjustment method |
| CN106771998A (en) * | 2016-11-22 | 2017-05-31 | 国网山东省电力公司东营供电公司 | A kind of tester for testing RCCB |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207215903U (en) | A kind of DCR of Transformer and transformer voltage ratio group tester | |
| CN204575811U (en) | A kind of test macro of high-voltage switch contact | |
| CN204575810U (en) | A kind of miniature circuit breaker temporal properties auto-test-bed | |
| CN202870132U (en) | Large-power three-phase AC standard source | |
| CN204374381U (en) | A kind of miniature circuit breaker standard feature testing table | |
| CN105588987A (en) | Three-phase phase checking device applied to power distribution network 10 kV switch cabinets and phase checking method | |
| CN205229411U (en) | Switch element load characteristic test bench | |
| CN203705523U (en) | Multifunctional integrated comprehensive test bench | |
| CN103777046B (en) | Variable specific current transformer intelligent controlling device | |
| CN206208991U (en) | A kind of direct-current resistance tester for transformer | |
| CN105513903B (en) | A kind of breaker debugging platform | |
| CN201707433U (en) | Intelligent controller characteristic test instrument | |
| CN203705524U (en) | Universal multifunctional integrated comprehensive test bench | |
| CN104950149A (en) | Electronic power-frequency voltage-withstand test voltage-regulating device, test wiring circuit and test voltage-regulating method | |
| CN204009049U (en) | A kind of test fixture for concentrator and electric energy meter communication function | |
| CN203838195U (en) | Voltage regulating device and wiring circuit used for electric power-frequency voltage-withstand test | |
| CN203811710U (en) | Electric leakage protector testing system | |
| CN106501762B (en) | The device and method of through type or jaw type calibrating is carried out to on-site calibrator | |
| CN201837690U (en) | Debugging instrument of reactive compensation device | |
| CN103312183B (en) | For power supply and the method for testing thereof of reactor performance test in phase control rectifier circuit | |
| CN209281210U (en) | A kind of idle simulation generator of harmonic wave | |
| CN2789994Y (en) | Multifunction moving electric power output cabinet | |
| CN202372594U (en) | Portable point switch dynamic simulator | |
| CN203561676U (en) | Leakage current tester | |
| CN204374382U (en) | A kind of miniature circuit breaker time-delay characteristics testing table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |