CN203838221U - Intelligent high-precision multiphase residual voltage measurement device - Google Patents
Intelligent high-precision multiphase residual voltage measurement device Download PDFInfo
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- CN203838221U CN203838221U CN201320751963.6U CN201320751963U CN203838221U CN 203838221 U CN203838221 U CN 203838221U CN 201320751963 U CN201320751963 U CN 201320751963U CN 203838221 U CN203838221 U CN 203838221U
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Abstract
The utility model discloses an intelligent high-precision multiphase residual voltage measurement device, and the device comprises a test power supply, a zero-cross peak sampling module, a high-frequency industrial control computer control module, and a time voltage sampling module. The test power supply is connected with the zero-cross peak sampling module which is connected with the high-frequency industrial control computer control module. The high-frequency industrial control computer control module is connected with a first electronic switch, a second electronic switch, and the time voltage sampling module. The first electronic switch is connected with a first cutoff execution module. The second electronic switch is connected with a second cutoff execution module. The test power supply is connected with the first cutoff execution module which is connected with to-be-tested equipment. The to-be-tested equipment is connected with the second cutoff execution module. The second cutoff execution module is connected with the time voltage sampling module. The device provided by the utility model effectively achieves the measurement of the residual voltage of three-phase voltage electrical equipment, is higher in intelligentization level, and is better in accuracy.
Description
Technical field
The utility model belongs to mechano-electronic electrical equipment pick-up unit, exactly, is a kind of residual voltage tester.
Background technology
After residual voltage is the power-off of mechano-electronic electrical equipment, on each phase utmost point of attaching plug, each energy storage device of extremely between device housings and consumer inside easily being touched mutually, the residual voltage keeping within a period of time.
The safety first part of GB GB4706.1-2005 < < family expenses and similar electrical equipment: safety requirements > > regulation: " utensil rated voltage power supply; then, by its any one switch "off" position, utensil disconnects from power supply when voltage peak.Early during the 1s after deenergization, with one, can not produce the obviously instrument of impact to measured value, the voltage between each pin of measurement plug "
Rower < < Electrical Control of Machinery Tools system residual voltage test standard > > regulation: following Machine Tools Electric system need be carried out residual voltage test, 1) after tested lathe dump, any residual voltage of Electrical Control of Machinery Tools internal system is higher than the touched live part of 60V; 2) to plug/socket or similar device, extract them and can expose conductors (as contact pin), at the 1s that pulls off plug/socket during the time, the residual voltage between each plug/socket.This rower has also stipulated that two kinds are measured expression way in addition: according to the difference of testing equipment, can set by following two kinds of methods.A) setting discharge time is 5s, the voltage of 5s during the time after test cut power supply; B) setting voltage is 60V, time when voltage drop is to 60V after test cut power supply.
According at present domestic and international residual voltage testing standard and test request, residual voltage testing apparatus has the following aspects particular requirement:
(1) very high test internal resistance.High internal resistance can reduce surveying instrument greatly to tested product, and improves the precision of test result;
(2) the accurate test duration.While pulling off 1s, 5s after plug, the time of this point is judged, and the instantaneous collection of trigger voltage record;
(3) instantaneous collecting test data capability.The voltage of this point when test gathers 1s, 5s, or voltage while reaching 60V precise time used refer to;
(4) peak value power-off test function.In order to record the maximum residual voltage of equipment under test, all standards and test request all must carry out power down process at the peak of voltage.In addition, also stipulated test must carry out 10 times.This is in order to test the highest residual voltage, and its test maximal value is selected in regulation test 10 times
At present, there is following shortcoming in the residual voltage measuring instrument on market: 1, cannot realize the measurement of three-phase voltage electrical equipment residual voltage; 2, measurement intelligent level is low, and two that cannot realize time measurement and voltage measurement are carried out simultaneously or freely switch; 3, peak value instant cut-off function is inaccurate, poor repeatability; 4, measuring result error is large, and repeatability is bad.
Summary of the invention
The deficiency that the measurement that cannot realize three-phase voltage electrical equipment residual voltage, intelligent level are low, accuracy is poor existing in order to overcome existing residual voltage measuring instrument, the utility model provides that a kind of measurement, intelligent level that effectively realizes three-phase voltage electrical equipment residual voltage is higher, the multinomial residual voltage measurement mechanism of the good high precision degree intelligence of accuracy.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts:
The heterogeneous residual voltage measurement mechanism of a kind of high-precision intelligent, comprise testing power supply, zero passage peak value sampling module, high-frequency industrial computer control module and time voltage acquisition module, described testing power supply connects described zero passage peak value sampling module, described zero passage peak value sampling module is connected with described high-frequency industrial computer control module, described high-frequency industrial computer control module while and the first electronic switch, the second electronic switch is connected with time voltage acquisition module, described the first electronic switch is connected with described the first power-off execution module, described the second electronic switch is connected with described the second power-off execution module, described testing power supply is connected with described the first power-off execution module, described the first power-off execution module is connected with equipment under test, described equipment under test is connected with described the second power-off execution module, described the second power-off execution module is connected with described time voltage acquisition module.
Further, described measurement mechanism also comprises display module, and described high-frequency industrial computer control module connects display module.
The beneficial effects of the utility model are mainly manifested in: 1, multi-functional, a testing apparatus meets 380V and two kinds of voltage apparatus residual voltage test functions of 220V.2, high precision, has and simulates power-off judgement peak and binary channels voltage acquisition function raising collection density zero point.3, hommization, has time, the two display functions of voltage, has different safety and evaluates display alarm function.Accompanying drawing explanation
Fig. 1 is the schematic diagram of the heterogeneous residual voltage measurement mechanism of a kind of high-precision intelligent.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1, the heterogeneous residual voltage measurement mechanism of a kind of high-precision intelligent, comprise testing power supply 1, zero passage peak value sampling module 8, high-frequency industrial computer control module 7 and time voltage acquisition module, described testing power supply 1 connects described zero passage peak value sampling module 8, described zero passage peak value sampling module 8 is connected with described high-frequency industrial computer control module 7, described 7 whiles and the first electronic switch 41 of high-frequency industrial computer control module, the second electronic switch 42 is connected with time voltage acquisition module 6, described the first electronic switch 41 is connected with described the first power-off execution module 21, described the second electronic switch 42 is connected with described the second power-off execution module 22, described testing power supply 1 is connected with described the first power-off execution module 21, described the first power-off execution module 21 is connected with equipment under test 3, described equipment under test 3 is connected with described the second power-off execution module 22, described the second power-off execution module 22 is connected with described time voltage acquisition module 5.
Described measurement mechanism also comprises display module 9, and described high-frequency industrial computer control module 7 connects display module 9.
In the present embodiment, utilize the change in voltage situation of zero passage peak value acquisition module 8 collecting test power supplys 1, then by fuzzy control, analyze judgement, calculate the time location point of voltage peak, and realize and disconnect testing power supply voltage at peak, high-frequency industrial computer control module 7 can be according to measurement standard requirement, by the residual voltage value of time voltage acquisition module 6 Real-time Collection equipment under tests and the time of experience, and by programming, the residual voltage value while obtaining range of provided delay time and residual voltage value arrive needed time value while setting numerical value.
In the present embodiment, being described below of each circuit hardware module:
Zero passage peak value sampling module, for detection of power end voltage-phase, when the measured phase voltage zero passage of supply voltage, control system starts 1/4th power cycle times of time delay instantaneous collection supply voltage, by finely tuning program loop multi collect supply voltage before and after the time and carrying out peak-peak analysis, final time point and the peak value size of accurately determining peak value power-off.
High-frequency industrial computer control module, the programmed control of whole device, data processing centre (DPC).For providing enough data processing resources to zero passage peak detection block and time voltage acquisition module, receive power-off signal and the peak signal of zero passage peak detection block, control the power-off of power-off execution module, and the coherent detection data such as start-up time voltage acquisition module Real-time Collection recording voltage, time.
Power-off execution module, integrated power-off response time pick-up transducers, and by the actual power-off time of high-frequency industrial computer control module intelligent compensation, accomplish power-off time zero error, improve equipment set and detect science and accuracy.
Time voltage acquisition module, high-frequency, the parallel full-time collection of binary channels, by voltage signal being carried out to the binary channels full-time collection of staggering the time, realize the collection of voltage double frequency, improve reliability and the continuity of image data, thereby guarantee accuracy, repeatability and the reliability of final voltage, time measurement data.
Display module, the time is that the voltage curve of X-axis line shows, has the Concurrent Display of different safety standard official hour records and magnitude of voltage record, provides and has defective warning function.There is the button that 380V and 220V distinct device residual voltage test request switch.
Claims (2)
1. the heterogeneous residual voltage measurement mechanism of high-precision intelligent, it is characterized in that: comprise testing power supply, zero passage peak value sampling module, high-frequency industrial computer control module and time voltage acquisition module, described testing power supply connects described zero passage peak value sampling module, described zero passage peak value sampling module is connected with described high-frequency industrial computer control module, described high-frequency industrial computer control module while and the first electronic switch, the second electronic switch is connected with time voltage acquisition module, described the first electronic switch is connected with described the first power-off execution module, described the second electronic switch is connected with described the second power-off execution module, described testing power supply is connected with described the first power-off execution module, described the first power-off execution module is connected with equipment under test, described equipment under test is connected with described the second power-off execution module, described the second power-off execution module is connected with described time voltage acquisition module.
2. the heterogeneous residual voltage measurement mechanism of high-precision intelligent as claimed in claim 1, is characterized in that: described measurement mechanism also comprises display module, and described high-frequency industrial computer control module connects display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751963.6U CN203838221U (en) | 2013-11-25 | 2013-11-25 | Intelligent high-precision multiphase residual voltage measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751963.6U CN203838221U (en) | 2013-11-25 | 2013-11-25 | Intelligent high-precision multiphase residual voltage measurement device |
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| Publication Number | Publication Date |
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| CN203838221U true CN203838221U (en) | 2014-09-17 |
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| CN201320751963.6U Expired - Fee Related CN203838221U (en) | 2013-11-25 | 2013-11-25 | Intelligent high-precision multiphase residual voltage measurement device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502665A (en) * | 2014-12-11 | 2015-04-08 | 通标标准技术服务(上海)有限公司 | Device and method for testing residual voltage |
| CN106199141A (en) * | 2016-08-31 | 2016-12-07 | 四川新环佳科技发展有限公司 | A kind of residual voltage detecting system |
| CN106199142A (en) * | 2016-08-31 | 2016-12-07 | 四川新环佳科技发展有限公司 | A kind of residual voltage detection method |
| CN107132431A (en) * | 2016-02-26 | 2017-09-05 | 珠海格力电器股份有限公司 | Plug residual voltage test device and method of testing |
| CN107727922A (en) * | 2017-08-16 | 2018-02-23 | 珠海格力电器股份有限公司 | A kind of control method of voltage check device, storage medium and equipment |
| CN108226639A (en) * | 2017-10-20 | 2018-06-29 | 上海与德通讯技术有限公司 | A kind of composite data line test device |
-
2013
- 2013-11-25 CN CN201320751963.6U patent/CN203838221U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502665A (en) * | 2014-12-11 | 2015-04-08 | 通标标准技术服务(上海)有限公司 | Device and method for testing residual voltage |
| CN107132431A (en) * | 2016-02-26 | 2017-09-05 | 珠海格力电器股份有限公司 | Plug residual voltage test device and method of testing |
| CN106199141A (en) * | 2016-08-31 | 2016-12-07 | 四川新环佳科技发展有限公司 | A kind of residual voltage detecting system |
| CN106199142A (en) * | 2016-08-31 | 2016-12-07 | 四川新环佳科技发展有限公司 | A kind of residual voltage detection method |
| CN106199142B (en) * | 2016-08-31 | 2018-08-14 | 四川新环佳科技发展有限公司 | A kind of residual voltage detection method |
| CN106199141B (en) * | 2016-08-31 | 2018-08-17 | 四川新环佳科技发展有限公司 | A kind of residual voltage detecting system |
| CN107727922A (en) * | 2017-08-16 | 2018-02-23 | 珠海格力电器股份有限公司 | A kind of control method of voltage check device, storage medium and equipment |
| CN108226639A (en) * | 2017-10-20 | 2018-06-29 | 上海与德通讯技术有限公司 | A kind of composite data line test device |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20151125 |