CN103176081A - Vacuum contactor comprehensive performance test board and test method of vacuum contactor comprehensive performance - Google Patents
Vacuum contactor comprehensive performance test board and test method of vacuum contactor comprehensive performance Download PDFInfo
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- CN103176081A CN103176081A CN2013100644451A CN201310064445A CN103176081A CN 103176081 A CN103176081 A CN 103176081A CN 2013100644451 A CN2013100644451 A CN 2013100644451A CN 201310064445 A CN201310064445 A CN 201310064445A CN 103176081 A CN103176081 A CN 103176081A
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Abstract
The invention discloses a vacuum contactor comprehensive performance test board which is characterized by comprising an input/output loop unit, a signal detection unit, an analytical control unit and a voltage-regulating unit. The input/output loop unit is used for inputting power and supplying the same for each unit; the signal detection unit is used for detecting output voltage and coil current of a contactor and sending the output voltage and the coil current to the analytical control unit to be analyzed and judged; the analytical control unit is used for analyzing and judging multiple dynamic tests of the contactor; and the voltage-regulating unit is used for controlling clockwise/anticlockwise rotation of a motor through signals analyzed by the analytical control unit, so that a voltage regulator can be boosted and released to release voltage when the contactor pulls in voltage. With the method, test results of the multiple dynamic detects of the contactor are accurate and visual, testing time is short, and conventional connection troubles during tests are reduced; one equipment with the contactor is provided with the tests and analyses of multiple performance parameters at a time; and intellectualization of incoming goods detection is improved, and professional requirements on an detection personnel is lowered.
Description
Technical field
The present invention relates to a kind of measuring technology of coal mine explosion-proof product components and parts, be specifically related to a kind of vacuum contactor combination property test desk and method of testing.
Background technology
Principle and the technology of the aspects such as the performance test of vacuum contactor relates to electricity, magnetic, heat, machinery, material under various working, electrically contacts, reliability, its dynamic process presents non-linear, complicacy, uncertain, the electrical specification of contactor and mechanical property are the leading indicators of contactor design, directly affect the dynamic perfromance of contactor.But, existing receiving inspection method to contactor, basic or simple upper electrical testing and naked eyes are directly observed.At present, the method for receiving inspection examination contactor performance is to adopt pattern withstand voltage test and the break-make test that powers on, and this test method is with present form: the one, be difficult to carry out larger in batches check, and proving time is long; The 2nd, the contactor performance can not be truly, comprehensively test out.Limit greatly factory mass production, also do not guaranteed the performance of contactor.
Along with market competition adds hugely, product profit is more and more lower, only is improved product quantity, could the promoting enterprise development, thus impel production throughput to improve.Can't satisfy yield-power by former detection means at all and improve receiving inspection quantity and the requirement that brings, but do detection as buying professional equipment, price is high, and is difficult in maintenance, increase again undoubtedly enterprise cost, cause the wasting of resources of equipment own and only do receiving inspection with equipment.Therefore, urgent need will have a kind of equipment measuring means faster, more accurate, more human-saving to satisfy Production requirement.
Summary of the invention
The present invention seeks to: providing a kind of can carry out multinomial static test to contactor, and short vacuum contactor combination property test desk and method of testing of test duration.
Technical scheme of the present invention is: a kind of vacuum contactor combination property test desk comprises:
Input and output loop feature, input and output loop feature are with the power supply input, are each device power supply;
The input part detects output voltage and the coil current of contactor, and gives the analysis and Control part with it, in order to analyze judgement;
The analysis and Control part judges the multinomial dynamic test of the tentaculum that achieves a butt joint by analysis;
The pressure regulation part is controlled the rotating of motor by analysis and Control partial analysis signal out, obtain contactor adhesive release voltage thereby pressure regulator is boosted with step-down.
Preferably, also comprise: the communicative indication part, use man-machine interface and analysis and Control partly to carry out communication, thereby desired data and analysis result are shown on display screen.
Preferably, described analysis and Control is partly the PLC controller.
Preferably, the main contactor of described contactor and auxiliary contact point are received respectively the digital quantity input end of PLC controller.
Preferably, described signal detecting part divides and comprises voltage sensor and current sensor.
A kind of vacuum contactor all-round property testing method comprises the following steps:
(1) at first open the test board power switch, automatically regulating pressure regulator by the PLC controller slowly raises its coil voltage, voltage sensor sends the voltage signal that detects to the PLC controller, if the voltage that detects is not in 75%-110%Ue, this Ue is the contactor rated voltage, and communicative indication partial display pick-up voltage is defective;
(2) if the voltage that detects in 75%-110%Ue, contactor adhesive, main contactor and auxiliary contact point send signal to the PLC controller and analyze, if △ is t=max{|t1-t2|, | t1-t3|, | t2-t3|} 〉=3ms, the adhesive of communicative indication partial display main contactor is inconsistent; If the normally closed contact of auxiliary contact point does not disconnect or not adhesive of normally opened contact, the auxiliary contact point of communicative indication partial display is defective, and every data result of this one-phase is passed through the communicative indication partial display out;
(3) if the voltage that detects in 75%-100%Ue, when pressure regulator was transferred to contactor rated voltage Ue on slowly, current sensor sent the coil current signal that detects to the PLC controller, more slowly is adjusted downward to the contactor release voltage;
(4) if the voltage that detects in 100%-110%Ue, when pressure regulator directly slowly being adjusted downward to contactor rated voltage Ue, current sensor sends the coil current signal that detects to the PLC controller, then continues to be adjusted downward to the contactor release voltage;
(5) at last the release voltage signal that detects is delivered to the analysis of PLC controller, if the release voltage that detects is not in 20%-60%Ue, communicative indication partial display release voltage is defective, at last pressure regulator is adjusted downward to zero, test is completed, and communicative indication partly shows whole test results.
Advantage of the present invention is: the multinomial dynamic test of the tentaculum that achieves a butt joint, test result is accurate, intuitively, test duration is short, reduce the problem of the wiring trouble in test process in the past, make an equipment once just possess test and the analysis of contactor multinomial performance parameter, improve receiving inspection intelligent, also reduced receiving inspection personnel's professional requirement.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is vacuum contactor combination property test desk structured flowchart of the present invention;
Fig. 2 is vacuum contactor all-round property testing method flow diagram of the present invention.
Embodiment
Embodiment: with reference to shown in Figure 1, a kind of vacuum contactor combination property test desk comprises: input and output loop feature, input and output loop feature are with the power supply input, are each device power supply; The input part detects output voltage and the coil current of contactor, and gives the analysis and Control part with it, in order to analyze judgement; The analysis and Control part judges the multinomial dynamic test of the tentaculum that achieves a butt joint by analysis; The pressure regulation part is controlled the rotating of motor by analysis and Control partial analysis signal out, obtain contactor adhesive release voltage thereby pressure regulator is boosted with step-down; And the communicative indication part, use man-machine interface and analysis and Control partly to carry out communication, thereby desired data and analysis result are shown on display screen.This analysis and Control is partly the PLC controller, and the main contactor of contactor and auxiliary contact point are received respectively the digital quantity input end of PLC controller, and this signal detecting part divides and comprises voltage sensor and current sensor.
With reference to shown in Figure 2, the action that contactor is tested and electric property require be: 1, contactor adhesive experiment, with pressure regulator to contactor coil from zero to rated voltage, coil voltage is normal adhesive in the 75%-110%Ue scope; Lower from rated voltage is past to contactor coil with pressure regulator, contactor should reliably discharge in the 20%-60% rated voltage.2, after the contactor adhesive, contactor is kept electric current can not surpass normal value, as shown in table 1:
Table 1 contactor coil testing current parameter
What surpass this range of current is considered as defectively, determines contactor coil switch on for a long time ability and heating situation (HMI is as the communicative indication part) take this.
Native system adopts sensor model number and opertaing device, and selecting Siemens 200 is CPU224XP, and wherein CPU224XP is integrated, and digital quantity 14 enters/10 go out, and analog quantity 2 enters/and l goes out.Analog quantity ratiometric conversion principle is in data acquisition and processing: because the corresponding relation between A/D, D/A conversion, the inner analog signals with the numeric representation outside of s7-200CPU, certain mathematical relation is arranged, i.e. the conversion relation of analog quantity/numerical quantities between the two.For example, use the analog signals input of a 0-20mA, inner at s7-200CPU, 0-20mA is corresponding to numerical range 0-32000; For the signal of 4-20mA, corresponding internal numeric is 6400-32000.S7-200PLC adopts PPI communication protocol, OP screen and RS-485 interface herein, uses the profibus-dp cable, transmits data and is comprised of 1 start bit, 8 data bit, 1 even parity bit, a position of rest, and transfer rate is 9600b/s.S7-200 has the adapter of 9 pin D, with the man-machine interface serial communication, realizes real-time data transmission.Table 2 is each control signal allocation tables of system.
Table 2PLC allocation tables
| Input | The address | Output | The address |
| Main contacts 1 | I0.0 | Close a floodgate | Q0.0 |
| Main contacts 2 | I0.1 | Boost | Q0.1 |
| Main contacts 3 | I0.2 | Step-down | Q0.2 |
| Auxiliary tactile normally opened contact 1 | I0.3 | Bypass | Q0.3 |
| Auxiliary tactile normally opened contact 2 | I0.4 | Standby | Q0.4 |
| Auxiliary tactile normally opened contact 3 | I0.5 | ? | ? |
| Auxiliary tactile normally opened contact 4 | I0.6 | ? | ? |
| Auxiliary tactile normally closed contact 1 | I0.7 | ? | ? |
| Auxiliary tactile normally closed contact 2 | I1.0 | ? | ? |
| Auxiliary tactile normally closed contact 3 | I1.1 | ? | ? |
| Auxiliary tactile normally closed contact 4 | I1.2 | ? | ? |
| Start | I1.3 | ? | ? |
| Stop | I1.4 | ? | ? |
| Manual/auto | I1.5 | ? | ? |
Dynamic test based on contactor, filter out the various characteristics phasor that can comprehensively reflect contactor from dynamic perfromance, the comprehensive assessment of using PLC intellectual analysis contactor dynamic perfromance, the foundation that the parameter testing of tentaculum dynamic process and the performance of achieving a butt joint passed judgment on, realize the comprehensive judge of contactor, for the analysis of contactor Performance Detection provides advanced means.PLC receives and gathers contactor dynamic test parameter, and test parameter is delivered to PLC analyze and pass judgment on, and provides evaluation result.Adopt mathematical model to be difficult to the complicated dynamic process of real reflection on the spot fully really, must be with method of testing to optimizing.This assessment result is not simple qualified and defective, and it can also reflect the good and bad degree of properties of product, and the effect of actual guidance has been played in the quality testing of therefrom understanding the optimal design product of contactor.
The above is only the embodiment of invention.Protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses, and the variation that can expect easily or replacement are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (6)
1. a vacuum contactor combination property test desk, is characterized in that, comprising:
Input and output loop feature, input and output loop feature are with the power supply input, are each device power supply;
The input part detects output voltage and the coil current of contactor, and gives the analysis and Control part with it, in order to analyze judgement;
The analysis and Control part judges the multinomial dynamic test of the tentaculum that achieves a butt joint by analysis;
The pressure regulation part is controlled the rotating of motor by analysis and Control partial analysis signal out, obtain contactor adhesive release voltage thereby pressure regulator is boosted with step-down.
2. vacuum contactor combination property test desk according to claim 1, is characterized in that, also comprises: the communicative indication part, and use man-machine interface and analysis and Control partly to carry out communication, thereby desired data and analysis result are shown on display screen.
3. vacuum contactor combination property test desk according to claim 2, is characterized in that, described analysis and Control is partly the PLC controller.
4. vacuum contactor combination property test desk according to claim 3, is characterized in that, the main contactor of described contactor and auxiliary contact point are received respectively the digital quantity input end of PLC controller.
5. vacuum contactor combination property test desk according to claim 4, is characterized in that, described signal detecting part divides and comprises voltage sensor and current sensor.
6. a vacuum contactor all-round property testing method, is characterized in that, comprises the following steps:
(1) at first open the test board power switch, automatically regulating pressure regulator by the PLC controller slowly raises its coil voltage, voltage sensor sends the voltage signal that detects to the PLC controller, if the voltage that detects is not in 75%-110%Ue, this Ue is the contactor rated voltage, and communicative indication partial display pick-up voltage is defective;
(2) if the voltage that detects in 75%-110%Ue, contactor adhesive, main contactor and auxiliary contact point send signal to the PLC controller and analyze, if △ is t=max{|t1-t2|, | t1-t3|, | t2-t3|} 〉=3ms, the adhesive of communicative indication partial display main contactor is inconsistent; If the normally closed contact of auxiliary contact point does not disconnect or not adhesive of normally opened contact, the auxiliary contact point of communicative indication partial display is defective, and every data result of this one-phase is passed through the communicative indication partial display out;
(3) if the voltage that detects in 75%-100%Ue, when pressure regulator was transferred to contactor rated voltage Ue on slowly, current sensor sent the coil current signal that detects to the PLC controller, more slowly is adjusted downward to the contactor release voltage;
(4) if the voltage that detects in 100%-110%Ue, when pressure regulator directly slowly being adjusted downward to contactor rated voltage Ue, current sensor sends the coil current signal that detects to the PLC controller, then continues to be adjusted downward to the contactor release voltage;
(5) at last the release voltage signal that detects is delivered to the analysis of PLC controller, if the release voltage that detects is not in 20%-60%Ue, communicative indication partial display release voltage is defective, at last pressure regulator is adjusted downward to zero, test is completed, and communicative indication partly shows whole test results.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454581A (en) * | 2013-08-26 | 2013-12-18 | 天津市松正电动汽车技术股份有限公司 | Contactor performance testing equipment |
| CN105182230A (en) * | 2015-10-09 | 2015-12-23 | 枣庄矿业集团新安煤业有限公司 | Contactor synchronous detector and use method thereof |
| CN106707155A (en) * | 2016-12-30 | 2017-05-24 | 中车长春轨道客车股份有限公司 | Small-capacity contactor acting characteristic test system and method |
| CN107685032A (en) * | 2017-08-14 | 2018-02-13 | 苏州新视野自动化科技有限公司 | High-voltage DC contactor all-round property testing streamline |
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| JP2002048826A (en) * | 2000-08-01 | 2002-02-15 | Kyuki:Kk | Input converting unit with built-in test terminal |
| CN101013148A (en) * | 2007-01-31 | 2007-08-08 | 哈尔滨工业大学 | Dynamic property test analysis system for DC hybrid contactor reliable life experiment |
| CN203204086U (en) * | 2013-03-01 | 2013-09-18 | 上海华欣民福电气科技有限公司 | A vacuum contactor comprehensive performance testing table |
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| JP2002048826A (en) * | 2000-08-01 | 2002-02-15 | Kyuki:Kk | Input converting unit with built-in test terminal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454581A (en) * | 2013-08-26 | 2013-12-18 | 天津市松正电动汽车技术股份有限公司 | Contactor performance testing equipment |
| CN105182230A (en) * | 2015-10-09 | 2015-12-23 | 枣庄矿业集团新安煤业有限公司 | Contactor synchronous detector and use method thereof |
| CN106707155A (en) * | 2016-12-30 | 2017-05-24 | 中车长春轨道客车股份有限公司 | Small-capacity contactor acting characteristic test system and method |
| CN107685032A (en) * | 2017-08-14 | 2018-02-13 | 苏州新视野自动化科技有限公司 | High-voltage DC contactor all-round property testing streamline |
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| CN103176081B (en) | 2015-07-08 |
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Effective date of registration: 20190816 Address after: 417100 Lianyuan Economic and Technological Development Zone, Loudi City, Hunan Province Patentee after: Hunan Chuangan Flameproof Electricappliances Co.,Ltd. Address before: Room 202, 1108 Caobao Road, Minhang District, Shanghai, 200233 Shanghai Huaxin Minfu Electric Technology Co., Ltd. Patentee before: Shanghai Huaxin Minfu Electrical Technology Co., Ltd. |