CN101144848A - Multifunctional integrative life experimental platform and its control method - Google Patents
Multifunctional integrative life experimental platform and its control method Download PDFInfo
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- CN101144848A CN101144848A CNA2007100577678A CN200710057767A CN101144848A CN 101144848 A CN101144848 A CN 101144848A CN A2007100577678 A CNA2007100577678 A CN A2007100577678A CN 200710057767 A CN200710057767 A CN 200710057767A CN 101144848 A CN101144848 A CN 101144848A
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Abstract
The present invention relates to a multifunctional comprehensive service life test-bed and the control method thereof. The present invention includes a test device with a plurality of types of automatic opening and closing breakers and a breaker undervoltage action detecting device, and also includes a control device, and a power supply device. The control device includes an industrial control computer, a touch screen, a control circuit of a stepping motor and a voltage regulating motor, and a control signal input/output circuit. The power supply device includes a 1-20 routes of test used power supply, wherein, a manual adjustable supply, an automatic adjustable power supply, a direct current manual adjustable power supply, and a fixed power supply are included. The present invention adopts the two technologies of the test device with a plurality of types of automatic opening and closing breakers and a breaker undervoltage action detecting device, and can test the service lives of different types of plastic shells and frame type breakers, the alternating/direct current contactor and the accessory products thereof on the same test-bed. The present invention improves the detecting precision of the delay undervoltage property, and uses the rational match of the types of the power supply to realize more temporary tests besides the prescribed test.
Description
Affiliated technical field
The invention belongs to a kind of isolating switch, contactor life of product experimental provision, particularly relate to a kind of multifunctional integrative life experimental platform and the control method thereof that can carry out polytype isolating switch and contactor durability test simultaneously.
Background technology
At present known to the mold cased circuit breaker of different model, frame-type circuit breaker, AC/DC contactor, with and accessory product when carrying out durability test, also adopt in the mode of manually-operated mostly and finish.At first in testing process, the durability test of breaker of plastic casing, frame circuit breaker and contactor generally needs to finish on different testing tables respectively, not only bad for saving cost, has also reduced work efficiency like this; Secondly owing to the update speed of product type is constantly accelerated, the life test rack of single kind can't be satisfied the demand far away on function, need build patch again during test, will make process of the test be difficult to go measurement and circuit to occur accident easily with unified standard, testing equipment is not attractive in appearance yet simultaneously; Last present known checkout equipment generally all exists structure too simple, automaticity is low, labour intensity is big, accuracy of detection is not high, detection mode can't be adjusted, test data such as can't preserve at deficiency, and some important characteristic (as the time of return of the under-voltage characteristic of delaying time) test does not still have the high-precision test method.
Summary of the invention
The present invention for solve the technical matters that exists in the known technology provide a kind of can to the mold cased circuit breaker of different model, frame-type circuit breaker, AC/DC contactor, with and accessory product carry out the multifunctional integrative life experimental platform and the control method thereof of durability test.
The technical scheme that the present invention takes for the multifunctional integrative life experimental platform that the technical matters that exists in the solution known technology provides is: it includes automatic brake switching test fixture of multiple model isolating switch and isolating switch low-voltage pick-up unit, also includes control device, supply unit; Described control device includes computing machine, touch-screen, the power supply of the required direct supply of described control device is provided, stepper motor driver, regulate described isolating switch low-voltage pick-up unit regulating circuit adjustable transformer voltage the pressure regulation motor control circuit and the make-and-break signal of switching value and stepper motor positioning signal converted to digital quantity outputs to the control signal generation circuit of described computing machine and semaphore that control signal generation circuit is produced converts the control signal change-over circuit of computing machine discernible signal amount and the control signal output circuit that the receiving computer output signal is exported control signal again to: touch-screen produces the signal of setting by described control signal, change-over circuit is passed to input end and computer, and the output terminal of computing machine is passed to signal by the control signal output circuit signal input part of touch-screen, the control circuit of stepper motor driver and pressure regulation motor; Described supply unit includes 1-20 road test power supply, comprising have manual regulated power supply, with described isolating switch low-voltage pick-up unit as output manual regulated power supply of automatic and adjustable power supply, direct current and fixed power source, the output terminal output control signal of computing machine is given the relay of the every road of power on/off source apparatus power supply correspondence, and the contactor that the contact of the relay of every road power supply correspondence is corresponding with it links to each other.
The present invention can also adopt following technical measures:
The control circuit of described pressure regulation motor includes pressure regulator stepper motor, relay and field effect transistor driving circuit; Compose in parallel the control bridge circuit with a close point series connection back with the opening and closing points that another group same form is connected a battle of described relay, stepper motor is connected across control bridge circuit centre position, two ends add+12 volts of direct supplys after one of them input end serial connection field effect transistor of control bridge circuit, in the field effect transistor driving circuit of control direct supply break-make, the input end of optocoupler is connected in series back one end respectively and adds+5 volts of power supplys with resistance and light emitting diode, the control output end of another termination computing machine, one end of the output terminal of optocoupler is attempted by+12 volts of direct supplys on, the other end is received on the driving stage of field effect transistor after through a pull down resistor.
The draw-in groove position signalling that described control signal generation circuit includes provides startup, anxious stop, the on-off circuit of the switching value of on/off switch signal and providing will be made of 2 push pedals and the optocoupler driving circuit of stepper motor operation limit signal, described optocoupler driving circuit is made up of a build-out resistor and an optocoupler, be connected in parallel on output cathode after the anodal serial connection of the input of the optocoupler build-out resistor+the 12V direct supply on, the input negative pole directly connects power supply ground, and output negative pole connects signaling conversion circuit.
Described control signal change-over circuit includes build-out resistor, light emitting diode and optocoupler; Connect control signal after the anodal serial connection of the input of the optocoupler build-out resistor, connect power supply ground behind the input negative pole string light emitting diode, the output cathode of optocoupler connects+5 volts of power supplys, connects the computing machine input end after the output negative pole serial connection build-out resistor, output negative pole and connect pull down resistor after connect signal ground.
Described control signal output circuit includes build-out resistor, light emitting diode, triode and optocoupler; Connect each output terminal of computing machine after the anodal serial connection of the input of the optocoupler build-out resistor, the input negative pole connects signal ground behind the serial connection light emitting diode, the output cathode of optocoupler and the collector of triode are attempted by a utmost point of each relay coil, another of each relay coil extremely directly connects+24 volts of direct supplys, the output negative pole of optocoupler connects the base stage of triode, and transistor emitter connects power supply ground.
Described computing machine can be single-chip microcomputer, industrial control computer or PLC.
The present invention for the control method of the multifunctional integrative life experimental platform that solves the technical matters that exists in the known technology and provide is: after will being connected by the corresponding station of signal end daughter board of test isolating switch or contactor and corresponding one group of auxiliary contact and test unit and the two ends of each actuation coil of tested isolating switch or contactor are connected with power end daughter board corresponding selection, carry out product line selection setting: can be set at TJ AC/DC contactor product, the serial mold cased circuit breaker product of TM and or the serial omnipotent breaker product of TW;
When being set at TJ AC/DC contactor product,
Then enter TJ AC/DC contactor product and measure program automatically, it may further comprise the steps:
(1) after touch-screen is set the coil power supply power supply of contactor on/off switch number of times, on/off switch interval time and contactor, enters and begin test;
(2) judge whether contactor on/off switch number of times, on/off switch interval time is zero, then screen displaying " you must be provided with on/off switch number of times and on/off switch interval time " or corresponding signal and return step (2) if yes, and judge whether the on/off switch power supply is selected, if not, then screen displaying " woulds you please select the on/off switch power supply " or corresponding signal and return step (2);
(3) if judge that contactor on/off switch number of times, on/off switch interval time is not for, and the on/off switch power supply is selected, judging further then whether product on this station was tested last time finishes, if not, screen displaying " this station as yet the test finish; continue? " or corresponding signal, if yes, then enter automatic test;
(4) further judge whether again to continue, if yes then by last subparameter setup test and enter automatic test, if not, then empty secondary data, and enter automatic test;
(5) automatically test beginning, at first output signal power supply that contactor coil is selected for use powers on, and makes the contacts of contactor adhesive, and enter automatic test, if not, then screen displaying is closed a floodgate overtime, automatically end of test (EOT) is cut off required power supply automatically, detects data and stores automatically;
(6) show that contactor closes a floodgate the duration, and judge whether to arrive the interval time of setting,, then continue to carry out this step if not;
(7) if yes, then the power supply of contactor coil is descended electricity, contacts of contactor disconnects, and judges whether the contactor separating brake puts in place again, if yes, and the screen displaying separating brake signal that puts in place then;
(8) if not, if then not, then the screen displaying separating brake is overtime, end of test (EOT) is cut off required power supply automatically automatically, detects data and stores automatically;
(9) show the duration of contactor separating brake, and judge whether to arrive separating brake and set interval time,, then continue to show the duration of contactor separating brake if not;
(10) if yes, then close the branch number of times and add up 1 time, and total accumulative frequency is presented on the touch-screen, and judge whether to reach the total degree of the on/off switch of setting;
(11) if yes, then automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(12) if not, then turn back to step (5).
When being set at TM series mold cased circuit breaker product,
Then enter TM series mold cased circuit breaker product and measure program automatically, it may further comprise the steps:
(1) sets isolating switch on/off switch number of times, on/off switch interval time and dropout mode at touch-screen;
(2) further setting is that shunted exciter tripping, transient voltage are threaded off or the time-delay undervoltage tripping;
(3) after selecting the time-delay undervoltage tripping, further setting is under-voltage the returning or the time-delay low-voltage of time-delay again;
(4) after the dropout mode is selected, select each electric annex power supply of isolating switch again;
(5) after selecting each annex power supply of isolating switch, setting isolating switch on/off switch mode again is stepper motor mode or electrically operated institution, promptly enters after the setting to begin test;
(6) judge whether isolating switch on/off switch number of times, on/off switch interval time is zero, then screen displaying " you must be provided with on/off switch number of times and on/off switch interval time " or corresponding signal if yes are if not, then return step (1); If not, judge further then whether accessory power supply is selected, if not, then screen displaying " woulds you please select shunt opening (under-voltage) power supply " or corresponding signal, and returns step (4);
(7) if judge that isolating switch on/off switch number of times, on/off switch are non-vanishing interval time, and if power supply is chosen as and is, judge at first whether product on this station was tested last time to finish, if yes, then enter automatic test;
(8) if not, screen displaying " do not test as yet and finish, continue? by this station " or corresponding signal, further judge whether again to continue, if yes then by last subparameter setup test, if not, then empty secondary data, and enter automatic test;
(9) enter automatic test after, at first export pulse stepper motor carried out closing operation, and judge to close a floodgate and whether to put in place, if not, screen displaying combined floodgate timeout signal then, end of test (EOT) automatically, required power supply cuts off, detects data automatically and stores automatically;
(10) if yes, then screen displaying is closed a floodgate and is put signal in place and begin to show the breaker closing duration, and judges whether to arrive the interval time of setting, if not, then continues to carry out this step;
(11) if yes, then isolating switch is carried out electricity dropout test, and further judge to thread off and whether put in place;
(12) if judge that dropout is not in place, screen displaying dropout timeout signal, automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(13) if judge to thread off and to put in place, screen displaying is threaded off and is put signal in place and begin to show drop-away time, and judges whether to arrive the interval of the drop-away time of setting;
(14) if not, then continue step (13),
(15) if yes, then screen displaying is closed the branch number of times and is added up 1 time, total accumulative frequency is presented on the touch-screen, and judges that closing the sum total whether the branch number of times reach setting divides number of times;
(16) if yes, then automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(17) if not, then export pulse and carry out sub-switching operation to stepper motor, the separating brake back screen displaying separating brake signal that puts in place that puts in place, and return step (9);
(18) if separating brake is not in place, screen displaying separating brake timeout signal then, end of test (EOT) automatically, required power supply cuts off, detects data automatically and stores automatically.
When being set at TW series omnipotent breaker product,
Then enter TW series omnipotent breaker product and measure program automatically, it may further comprise the steps:
(1) sets isolating switch on/off switch number of times, on/off switch interval time and dropout mode at touch-screen;
(2) further setting is that shunted exciter tripping, transient voltage are threaded off or the time-delay undervoltage tripping;
(3) after selecting the time-delay undervoltage tripping, further setting is under-voltage the returning or the time-delay low-voltage of time-delay again;
(4) after the dropout mode is selected, select each electric annex power supply of isolating switch again, after selecting each electric annex power supply of isolating switch, promptly enter and begin test;
(5) judge whether contactor on/off switch number of times, on/off switch interval time is zero, if yes then screen displaying " you must be provided with on/off switch number of times and on/off switch interval time " or corresponding signal and return step (1);
(6) if be not judged as not, judge further then whether accessory power supply is selected, if not, then screen displaying " woulds you please select shunt opening, under-voltage, motor, power switch " or corresponding signal, and returns step (4);
(7) if judge that isolating switch on/off switch number of times, on/off switch are non-vanishing interval time, and if power supply is chosen as and is, judge at first whether product on this station was tested last time to finish, if yes, then enter automatic test and begin;
(8) if not, screen displaying " do not test as yet and finish, continue? by this station " or corresponding signal, further judge whether again to continue, if yes then by last subparameter setup test, and enter automatic test; If, then do not empty secondary data, and enter automatic test;
(9) automatically test beginning, at first output signal is carried out closing operation to isolating switch, and judges whether closing operation puts in place, if not, screen displaying combined floodgate timeout signal then, automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(10) if yes, then screen displaying is closed a floodgate and is put signal in place and begin to show the breaker closing duration, and further judges whether setting value interval time into setting, if not, then continues to carry out this step;
(11) if yes, then carry out circuit breaker tripping operation, and further judge to thread off and whether put in place, if not, screen displaying dropout timeout signal then, end of test (EOT) automatically, required power supply cuts off, detects data automatically and stores automatically;
(12) if yes, the screen displaying signal that puts in place of threading off then, and begin to show drop-away time, and further judge whether to reach setting value interval time again, if not, then continue to carry out this step;
(13) if judgement reaches setting value interval time, then close the branch number of times and add up 1 time, and total accumulative frequency is presented on the touch-screen;
(14) judge whether to reach the total degree of the on/off switch of setting, if yes, end of test (EOT) automatically then, required power supply cuts off, detects data automatically and stores automatically;
(15) if not, then power on, isolating switch is carried out stored energy operation to energy storage motor;
(16) judge whether the motor stored energy operation puts in place, if yes, then the screen displaying separating brake signal that puts in place powers on to making electromagnet, and returns step (9).
(17) if not, then the screen displaying separating brake is overtime, automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically.
The present invention can also adopt following technical measures:
When screen displaying combined floodgate timeout signal, separating brake timeout signal or thread off when overtime, and the voice suggestion failure cause.
Novel advantage that has of the present invention and good effect are: owing to adopted ZL200620027378.1, " the automatic brake switching test fixture of multiple model isolating switch " and ZL200620027379.6, two technology of " isolating switch low-voltage pick-up unit ", the first time is with the mold cased circuit breaker of different model, frame-type circuit breaker, AC/DC contactor, with and the durability test of accessory product all can on a testing table, carry out, and the random collocation of having adopted multiple power supply is used and the optional mode of operation of a plurality of test stations makes pilot project can cover each model of above several series products fully, present technique is invented used power supply and is mostly adopted the transformer isolation mode to power in addition, get an electric shock in the time of can effectively avoiding operating, use and add several roads again and directly give power supply for satisfying big electric current simultaneously, so under powered problem when having remedied employing transformer isolation mode and power.The present invention can adopt the unified control of industrial computer, not only automaticity is high but also increased the kind and the precision of test greatly, the low deficiency of " the under-voltage characteristic of delaying time " precision detection time wherein in the past, the present invention has designed power source special can realize voltage stabilizing, bust, the full-automatic under-voltage characteristic test function of ging up, the operation voltage of considering the under-voltage release that the differentiation of same model annex and product causes simultaneously is different, designing again can be in the standard code range of nominal tension, the function of device for under-voltage releasing equipment operation voltage artificially is set, has so just further improved accuracy of detection.For the resource present technique invention that utilizes industrial computer has more fully increased by two groups of passive nodes specially, its make-and-break time all can arbitrarily be provided with, and has enlarged trial stretch.It is many that the present invention not only tests kind, the measuring accuracy height, and also compact conformation is handsome in appearance, and its service efficiency is very high, especially can utilize the reasonably combined of power supply kind to realize more regulation tests interim trial in addition by manual operation.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present invention;
Fig. 2 is the on/off switch device synoptic diagram among Fig. 1;
Fig. 3 is the supply unit circuit theory diagrams among Fig. 1;
Fig. 4-the 1st, power supply, stepper motor and pressure regulation circuit for controlling motor schematic diagram in the control device among Fig. 1;
Fig. 4-the 2nd, control signal produces and the change-over circuit schematic diagram in the control device among Fig. 1;
Fig. 4-the 3rd, control signal output circuit schematic diagram in the control device among Fig. 1;
Fig. 5-the 1st, the TJ AC/DC contactor product of the control device among Fig. 1 is measured program flow diagram automatically;
Fig. 5-the 2nd, the TM series mold cased circuit breaker product of the control device among Fig. 1 is measured program flow diagram automatically;
Fig. 5-the 3rd, the TW series omnipotent breaker product of the control device among Fig. 1 is measured program flow diagram automatically.
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
As shown in Figure 1, control casing 2 is arranged in the middle and lower part of the main body frame of building by aluminium alloy extrusions 1, the top panel of control casing 2 is arranged with the permanent opening 5 of passive node connection terminal of power supply terminal, station connection terminal and the time relay of wiring at any time, and the permanent opening 6 of manual adjustable AC and DC power adjustment knob is housed on the front plate of control casing 2.Two automatic brake switching test fixtures 3 of isolating switch are housed in the front of main body frame 1.Industrial computer is placed in the control casing 2, and touch-screen 4 is fixed on the upper right side in the front of main body frame 1, and the setting of Total Test parameter, record and demonstration are all finished by it.
Be illustrated in figure 2 as on/off switch device 3 (at this on/off switch device 3 in a left side that drawn, having omitted the on/off switch device 3 on right side), the frame 3-3 of stationary installation 3-2 and installation stepper motor on/off switch device 3-4 is installed on the main body frame 1; Wherein stationary installation 3-2 is made up of two crossbeam A, B and two vertical beam C, D, and wherein vertical beam C, D are installed on the main body frame 1 and can move forward and backward along framework, and crossbeam A, B are installed in last also can the doing of vertical beam C, D and move up and down; Frame 3-3 adopts any angle Connection Block to be connected with main body frame 1, can do 180 degree upsets up and down.Mold cased circuit breaker is fixed on crossbeam A, the B during test, determine best on/off switch position by the position of adjusting two crossbeam A, B and two vertical beam C, D, the isolating switch of general every kind of model all has relatively-stationary position, and the installation graduated scale with A, B, C and D is good in advance.
Supply unit circuit theory diagrams as shown in Figure 3 have 8 road power supplys, from left to right are followed successively by DY1～DY8, and wherein DY1 and DY3 are manual regulated power supply; DY5 regulates power supply automatically, and it utilizes an isolating switch low-voltage pick-up unit as output, can measure between under-voltage time-delay and time of return; DY6 is the manual regulated power supply of direct current, and all the other are fixed power source.Every road power supply is by corresponding relay control break-make, and DY1～DY6 adopts the transformer isolation mode to power, and DY7, DY8 adopt and directly power to mode.Because DY6, DY7 and DY8 use electric current big, its break-make adopts the indirect control contactor of relay to finish.
Fig. 4 is the control device circuit theory diagrams, wherein shown in Fig. 4-1, the power supply of control device, it provide control device required+5V ,+12V ,+the 24V direct supply; Stepping motor control circuit, the shared driver of two stepper motors of two on/off switch devices 3 adopts relay J Q0 to switch during work, only drive a stepper motor job at every turn; Drive signal end A+, A-, B+, B-receive respectively on four common ports of relay J Q0 opening and closing points, corresponding four close points are respectively A1+, A1-, B1+, B1-are used for driving one of them stepper motor, and be respectively A2+, A2-corresponding four battles, B2+, B2-are used for driving another stepper motor; Pressure regulator motor M rotating in the electric voltage regulator control circuit then is to realize by the cathode and anode directions of relay J Q12 Switching power. industrial computer control end M13 break-make promotes the field effect transistor break-make by optocoupler, realize the start-stop of pressure regulator motor M. compose in parallel the control bridge circuit with a close point series connection back with the opening and closing points that another group same form is connected the battle of relay J Q12, motor is connected across control bridge circuit centre position, two input ends at the control bridge circuit add+the 12V direct supply, the break-make of+12V direct supply is controlled by the field effect transistor driving circuit. in the field effect transistor driving circuit, the input end of optocoupler is connected in series back one end respectively and adds+the 5V power supply with resistance and light emitting diode D4, other end M13 is the industrial computer control end, one end of the output terminal of optocoupler is attempted by+the 12V direct supply on, the other end is received on the driving stage of field effect transistor after through a pull down resistor.
Control device control signal input circuit shown in Fig. 4-2, in the generation circuit of control signal, because industrial computer is the control core, so its control signal must convert digital quantity to and be input in the industrial computer. starting, suddenly stop being button SB1, SB2, wherein when pressing, scram button SB2 will cut off the drive signal of stepper motor simultaneously from hardware, to reach the anxious purpose of stopping. on/off switch is the input signal of each station, it has represented the quantity of station. groove, the upper limit, lower limit is the positioning signal of two fit switching-off device stepper motors. in the control signal generation circuit all by+12V DC power supply, wherein start, suddenly stop, the on/off switch signal all is that the break-make by switching value directly provides, groove and limit signal are provided by the optocoupler driving circuit. and described optocoupler driving circuit is made up of a build-out resistor and an optocoupler, the input positive pole of optocoupler is being connected in parallel on output cathode after the build-out resistor in serial connection+the 12V direct supply on, the input negative pole directly connects power supply ground, output negative pole connects signaling conversion circuit. the change-over circuit of control signal, it converts the semaphore in the control signal generation circuit to industrial computer discernible semaphore and is input to industrial computer. and signaling conversion circuit also is by build-out resistor, light emitting diode and optocoupler are formed, the input positive pole of optocoupler meets control signal PIN0-PIN10 after the serial connection build-out resistor, the input negative pole connects power supply ground behind the serial connection light emitting diode, the output cathode of optocoupler directly connects+the 5V power supply, output negative pole meets industrial computer input DI0-10 after the build-out resistor in serial connection, simultaneously output negative pole and connect pull down resistor after connect signal ground.
Control signal output circuit shown in Fig. 4-3, industrial computer drives the break-make that optocoupler promotes triode, thereby the corresponding relay on-off among control chart 3 and Fig. 4, also having played simultaneously industrial computer internal circuit and the isolated purpose of external circuitry. the control signal output circuit is also by build-out resistor, light emitting diode, triode and optocoupler are formed, the input positive pole of optocoupler meets industrial computer output PORT0-16 after the serial connection build-out resistor, the input negative pole connects signal ground behind the serial connection light emitting diode, the output cathode of optocoupler and the collector of triode are attempted by JQ0-JQ16 one utmost point of relay coil, another of relay coil JQ0-JQ16 extremely directly connects+the 24V direct supply, the output negative pole of optocoupler connects the base stage of triode, and transistor emitter connects power supply ground.
Control system software flow pattern as shown in Figure 5, the overall work process of present technique invention is:
After will being connected by the corresponding station of signal end daughter board of test isolating switch or contactor and corresponding one group of auxiliary contact and test unit and the two ends of each actuation coil of tested isolating switch or contactor are connected with power end daughter board corresponding selection, carry out product line selection setting: can be set at TJ AC/DC contactor product, the serial mold cased circuit breaker product of TM or be set at the serial omnipotent breaker product of TW;
When being set at TJ AC/DC contactor product, then enter TJ series AC/DC contactor testing process.
Shown in Fig. 5-1, TJ series AC/DC contactor testing process is:
At first, operating personnel connect the coil two ends of TJ series AC/DC contactor by lead and multifunctional integrated experimental bench power end daughter board corresponding selection, TJ series AC/DC contactor is assisted for one group open the contact and select corresponding station to connect with the signal end daughter board of multifunctional integrated experimental bench.Hardware is selected product type " TJ " after connecting in the drop-down list box of operating personnel on touch-screen; The mechanical property number of times of TJ series AC and DC contactor is set in closing branch number of times edit box; Be set the interval time of machinery combined floodgate with the separating brake of TJ series AC and DC contactor in closing branch interval edit box; In selecting to be provided with, power supply selects the coil power supply power supply of corresponding " TJ " serial contactor.
All test parameters after setting completed, operating personnel press " beginning test ", program is judged at first whether the TJ series of products of this station were tested last time and is finished, if test does not finish, show on the touch-screen that dialog box is pointed out " this station is tested as yet and finished; continue? " if the selection "Yes" then shows test parameter last time, and continues the test of last time on the touch-screen.Whether next closes the branch number of times is 0 with closing branch at interval, if be 0, then shows dialog box prompting " you must be provided with and close the branch number of times and close branch at interval " on the touch-screen.The 3rd, judge whether select, do not select if close independent power source if closing independent power source, then show dialog box prompting " woulding you please select power switch " on the touch-screen.More than be provided with all correct after, test beginning automatically.
Automatically test beginning, the button printed words become " stopping test " by " beginning test ", and have entered automatic test.Industrial computer powers on to the selected power supply of contactor coil by digital quantity output, the contacts of contactor adhesive, after industrial computer judges that contactor closes a floodgate successfully, show that on touch-screen switching signal is red, and beginning dynamically shows the duration that this contactor closes a floodgate, after this closing time arrives setting-up time, industrial computer descends the power supply of contactor coil, contacts of contactor disconnects, after industrial computer is judged the success of contactor separating brake, show that on touch-screen sub-gate signal is green, switching signal becomes white, and the dynamic duration that shows this contactor separating brake of beginning, after interval time is set in this opening time arrival, closing the branch number of times adds up 1 time, and overall accumulative frequency dynamically is presented on the touch-screen, after proceed the detection of the mechanical life of contactor circulation power on/off, when the contactor that equals to be provided with to adding up testing time when loop test closes the branch number of times, this test stops, and by voice circulation prompting " this station test finishes ".When in whole test process, when the failure of contactor on/off switch occurring, this test finishes immediately, and by voice circulation promptings " it is overtime that this station closes (branch) lock ".If the people is for pressing " stopping test " button, then test finishes immediately.After test stopped, corresponding contactor power supply cut off the power supply automatically, no matter was that proper testing finishes, or the industrial computer abnormal power-down, and current test data all can reliably be preserved into database.
When being set at TM series mold cased circuit breaker product, then enter TM series mold cased circuit breaker auto test flow.
Shown in Fig. 5-2, TM series mold cased circuit breaker auto test flow is:
At first, operating personnel are fixed in TM series mold cased circuit breaker on the multifunctional integrated experimental bench crossbeam, and circuit breaker handle is embedded in the stepper motor on/off switch system. shunt release is connected with multifunctional integrated experimental bench power end daughter board corresponding selection by lead with the coil two ends of device for under-voltage releasing equipment. open the contact and select corresponding station to connect one group of TM series mold cased circuit breaker is auxiliary with the signal end daughter board of multifunctional integrated experimental bench. after hardware is connected, select product type " TM " in the drop-down list box of operating personnel on touch-screen; The mechanical property number of times of TM Series Circuit Breakers is set in closing branch number of times edit box; Be set the interval time of machinery combined floodgate with the separating brake of TM series mold cased circuit breaker in closing branch interval edit box; In selecting to be provided with, power supply selects each annex power supply of corresponding " TM " Series Circuit Breakers.
All test parameters after setting completed, operating personnel press " beginning test ", program is judged at first whether the TM series of products of this station were tested last time and is finished, if test does not finish, show on the touch-screen that " this station is not tested as yet and finished, continue? in the dialog box prompting " if select "Yes", then show test parameter last time on the touch-screen, and continue the test of last time.Whether next closes the branch number of times is 0 with closing branch at interval, if be 0, then shows dialog box prompting " you must be provided with and close the branch number of times and close branch at interval " on the touch-screen.The 3rd, judge whether accessory power supply is selected, if accessory power supply does not select, then show dialog box prompting " woulding you please select shunt opening (under-voltage) power supply " on the touch-screen. more than be provided with all correct after, test beginning automatically.
Automatically test beginning, the button printed words become " stopping test " by " beginning test ", and have entered automatic test.Industrial computer carries out closing operation by digital quantity output pulse to stepper motor, after combined floodgate puts in place, show that on touch-screen switching signal is red, and beginning dynamically shows this breaker closing time, after this closing time arrives setting-up time, industrial computer carries out electricity dropout test to isolating switch, and detect to thread off and whether put in place, if put in place, showing on touch-screen threads off puts signal in place for blue, and beginning dynamically shows this drop-away time, when this drop-away time arrive set interval time after, and will close the branch number of times and add up 1 time, that judges whether accumulative frequency reach setting closes the branch number of times, divide number of times if reach sum total, then automatic end of test (EOT).If do not reach total set point number as yet, then industrial computer carries out sub-switching operation by digital quantity output pulse to stepper motor, after separating brake puts in place, show on the touch-screen that sub-gate signal is green, the test that combined floodgate carries out the mechanical life of endless-walk motor on/off switch is continued in the back.When loop test when institute's accumulative frequency equals to be provided with sum total and divides number of times, this test stops, and by voice circulation prompting " this station test finishes ".When in whole test process, when the failure of isolating switch on/off switch occurring, this test finishes immediately, and by voice circulation promptings " it is overtime that this station closes (branch) lock ".If the people is for pressing " stopping test " button terminator, then test finishes immediately automatically.After test stopped, corresponding testing power supply cut off the power supply automatically, no matter was that proper testing finishes, or the industrial computer abnormal power-down, and current test data all can reliably be preserved into database.
When being set at TW series omnipotent breaker product, then enter TW series omnipotent breaker auto test flow.
Shown in Fig. 5-3, TW series omnipotent breaker auto test flow is:
At first, operating personnel are positioned over the multifunctional integrated experimental bench test position with TW series omnipotent breaker, the coil two ends of the shunt release of this isolating switch, device for under-voltage releasing equipment, making electromagnet, energy storage motor are connected with multifunctional integrated experimental bench power end daughter board corresponding selection by lead. open the contact and select corresponding station to connect one group of isolating switch is auxiliary with the signal end daughter board of multifunctional integrated experimental bench. after hardware connects, select in the drop-down list box of operating personnel on touch-screen product type " TW; The mechanical property number of times of TW Series Circuit Breakers is set in closing branch number of times edit box; Be set the interval time of machinery combined floodgate with the separating brake of TW Series Circuit Breakers in closing branch interval edit box; In selecting to be provided with, power supply selects each annex power supply of corresponding " TW " Series Circuit Breakers.
All test parameters after setting completed, operating personnel press " beginning test ", program is judged at first whether the TW series of products of this station were tested last time and is finished, if test does not finish, show on the touch-screen that " this station is not tested as yet and finished, continue? in the dialog box prompting " if select "Yes", then show test parameter last time on the touch-screen, and continue the test of last time.Whether next closes the branch number of times is 0 with closing branch at interval, if be 0, then show dialog box prompting " you must be provided with and close the branch number of times and close branch at interval " on the touch-screen. the 3rd, judge whether accessory power supply is selected, if accessory power supply does not select, show on the touch-screen that then the dialog box prompting " woulds you please select shunt opening (under-voltage, motor, combined floodgate) power supply ". more than be provided with all correct after, test beginning automatically.
Automatically test beginning, the button printed words become " stopping test " by " beginning test ", and have entered automatic test.The closing operation that industrial computer powers on to TW Series Circuit Breakers making electromagnet, after breaker closing puts in place, show that on touch-screen switching signal is red, and beginning dynamically shows this breaker closing time, after this closing time arrives setting-up time, industrial computer carries out electricity dropout test to isolating switch, and detect to thread off and whether put in place, if put in place, showing on touch-screen threads off puts signal in place for blue, and beginning dynamically shows this drop-away time, when this drop-away time arrive set interval time after, and will close the branch number of times and add up 1 time, that judges whether accumulative frequency reach setting closes the branch number of times, divide number of times if reach sum total, then automatic end of test (EOT).If do not reach total set point number as yet, then industrial computer powers on to energy storage motor, carries out the motor stored energy operation, after the motor energy storage puts in place, shows on the touch-screen that sub-gate signal is green, and back making electromagnet powers on, and proceeds the round-robin test of mechanical life.When loop test when institute's accumulative frequency equals to be provided with sum total and divides number of times, this test stops, and by voice circulation prompting " this station test finishes ". when in whole test process, when the isolating switch on/off switch occurring or threading off failure, this test finishes immediately, and by voice circulation prompting " this station combined floodgate (separating brake, dropout) is overtime ".If the people is for pressing " stopping test " button terminator, then test finishes immediately automatically.After test stopped, corresponding testing power supply cut off the power supply automatically, no matter was that proper testing finishes, or the industrial computer abnormal power-down, and current test data all can reliably be preserved into database.
Claims (8)
1. multifunctional integrative life experimental platform, it includes automatic brake switching test fixture of multiple model isolating switch and isolating switch low-voltage pick-up unit, it is characterized in that: also include control device, supply unit; Described control device includes computing machine, touch-screen, the power supply of the required direct supply of described control device is provided, stepper motor driver, regulate described accent isolating switch low-voltage pick-up unit regulating circuit adjustable transformer voltage the pressure regulation motor control circuit and with the make-and-break signal of switching value and the stepper motor positioning signal converts the control signal generation circuit of the described computing machine in digital quantity output road to and the semaphore that control signal generation circuit is produced converts the control signal change-over circuit of computing machine discernible signal amount and the control signal output circuit that the receiving computer output signal is exported control signal again to; Touch-screen with the signal set by described control signal produce, change-over circuit passes to input end and computer, the output terminal of computing machine is passed to signal by the control signal output circuit control circuit of signal input part, stepper motor driver and the pressure regulation motor of touch-screen; Described supply unit includes 1-20 road test power supply, comprising have manual regulated power supply, with described isolating switch low-voltage pick-up unit as output manual regulated power supply of automatic and adjustable power supply, direct current and fixed power source, the output terminal output control signal of industrial control computer is given the relay of the every road of supply unit power supply correspondence, and the contactor that the contact of the relay of every road power supply correspondence is corresponding with it links to each other.
2. multifunctional integrative life experimental platform according to claim 1 is characterized in that: the control circuit of described pressure regulation motor includes pressure regulator stepper motor, relay and field effect transistor driving circuit; Compose in parallel the control bridge circuit with a close point series connection back with the opening and closing points that another group same form is connected a battle of described relay, stepper motor is connected across control bridge circuit centre position, two ends add+12 volts of direct supplys after one of them input end serial connection field effect transistor of control bridge circuit, in the field effect transistor driving circuit of control direct supply break-make, the input end of optocoupler is connected in series back one end respectively and adds+5 volts of power supplys with resistance and light emitting diode, the control output end of another termination computing machine, one end of the output terminal of optocoupler is attempted by+12 volts of direct supplys on, the other end is received on the driving stage of field effect transistor after through a pull down resistor.
3. multifunctional integrative life experimental platform according to claim 1, it is characterized in that: described control signal generation circuit includes provides startup, suddenly stop, the optocoupler driving circuit of draw-in groove position signalling that the on-off circuit of the switching value of on/off switch signal and providing will be made of 2 push pedals and stepper motor operation limit signal, described optocoupler driving circuit is made up of a build-out resistor and an optocoupler, be connected in parallel on output cathode after the anodal serial connection of the input of the optocoupler build-out resistor+the 12V direct supply on, the input negative pole directly connects power supply ground, and output negative pole connects signaling conversion circuit.
4. multifunctional integrative life experimental platform according to claim 1 is characterized in that: described control signal change-over circuit includes build-out resistor, light emitting diode and optocoupler; Connect control signal after the anodal serial connection of the input of the optocoupler build-out resistor, connect power supply ground behind the input negative pole string light emitting diode, the output cathode of optocoupler connects+5 volts of power supplys, connects the computing machine input end after the output negative pole serial connection build-out resistor, output negative pole and connect pull down resistor after connect signal ground.
5. multifunctional integrative life experimental platform according to claim 1 is characterized in that: described control signal output circuit includes build-out resistor, light emitting diode, triode and optocoupler; Connect each output terminal of computing machine after the anodal serial connection of the input of the optocoupler build-out resistor, the input negative pole connects signal ground behind the serial connection light emitting diode, the output cathode of optocoupler and the collector of triode are attempted by a utmost point of each relay coil, another of each relay coil extremely directly connects+24 volts of direct supplys, the output negative pole of optocoupler connects the base stage of triode, and transistor emitter connects power supply ground.
6. multifunctional integrative life experimental platform according to claim 1 is characterized in that: described computing machine can be single-chip microcomputer, industrial control computer or PLC.
7. the control method of a multifunctional integrative life experimental platform, it is characterized in that: after will being connected by the corresponding station of signal end daughter board of test isolating switch or contactor and corresponding one group of auxiliary contact and test unit and the two ends of each actuation coil of tested isolating switch or contactor are connected with power end daughter board corresponding selection, carry out product line selection setting: can be set at TJ AC/DC contactor product, the serial mold cased circuit breaker product of TM and or the serial omnipotent breaker product of TW;
When being set at TJ AC/DC contactor product,
Then enter TJ AC/DC contactor product and measure program automatically, it may further comprise the steps:
(1) after touch-screen is set the coil power supply power supply of contactor on/off switch number of times, on/off switch interval time and contactor, enters and begin test;
(2) judge whether contactor on/off switch number of times, on/off switch interval time is zero, then screen displaying " you must be provided with on/off switch number of times and on/off switch interval time " or corresponding signal and return step (2) if yes, and judge whether the on/off switch power supply is selected, if not, then screen displaying " woulds you please select the on/off switch power supply " or corresponding signal and return step (2);
(3) if judge that contactor on/off switch number of times, on/off switch interval time is not for, and the on/off switch power supply is selected, judging further then whether product on this station was tested last time finishes, if not, screen displaying " this station as yet the test finish; continue? " or corresponding signal, if yes, then enter automatic test;
(4) further judge whether again to continue, if yes then by last subparameter setup test and enter automatic test, if not, then empty secondary data, and enter automatic test;
(5) automatically test beginning, at first output signal power supply that contactor coil is selected for use powers on, and makes the contacts of contactor adhesive, and enter automatic test, if not, then screen displaying is closed a floodgate overtime, automatically end of test (EOT) is cut off required power supply automatically, detects data and stores automatically;
(6) show that contactor closes a floodgate the duration, and judge whether to arrive the interval time of setting,, then continue to carry out this step if not;
(7) if yes, then the power supply of contactor coil is descended electricity, contacts of contactor disconnects, and judges whether the contactor separating brake puts in place again, if yes, and the screen displaying separating brake signal that puts in place then;
(8) if not, if then not, then the screen displaying separating brake is overtime, end of test (EOT) is cut off required power supply automatically automatically, detects data and stores automatically;
(9) show the duration of contactor separating brake, and judge whether to arrive separating brake and set interval time,, then continue to show the duration of contactor separating brake if not;
(10) if yes, then close the branch number of times and add up 1 time, and total accumulative frequency is presented on the touch-screen, and judge whether to reach the total degree of the on/off switch of setting;
(11) if yes, then automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(12) if not, then turn back to step (5);
When being set at TM series mold cased circuit breaker product,
Then enter TM series mold cased circuit breaker product and measure program automatically, it may further comprise the steps:
(1) sets isolating switch on/off switch number of times, on/off switch interval time and dropout mode at touch-screen;
(2) further setting is that shunted exciter tripping, transient voltage are threaded off or the time-delay undervoltage tripping;
(3) after selecting the time-delay undervoltage tripping, further setting is under-voltage the returning or the time-delay low-voltage of time-delay again;
(4) after the dropout mode is selected, select each electric annex power supply of isolating switch again;
(5) after selecting each annex power supply of isolating switch, setting isolating switch on/off switch mode again is stepper motor mode or electrically operated institution, promptly enters after the setting to begin test;
(6) judge whether isolating switch on/off switch number of times, on/off switch interval time is zero, then screen displaying " you must be provided with on/off switch number of times and on/off switch interval time " or corresponding signal if yes are if not, then return step (1); If not, judge further then whether accessory power supply is selected, if not, then screen displaying " woulds you please select shunt opening (under-voltage) power supply " or corresponding signal, and returns step (4);
(7) if judge that isolating switch on/off switch number of times, on/off switch are non-vanishing interval time, and if power supply is chosen as and is, judge at first whether product on this station was tested last time to finish, if yes, then enter automatic test;
(8) if not, screen displaying " do not test as yet and finish, continue? by this station " or corresponding signal, further judge whether again to continue, if yes then by last subparameter setup test, if not, then empty secondary data, and enter automatic test;
(9) enter automatic test after, at first export pulse stepper motor carried out closing operation, and judge to close a floodgate and whether to put in place, if not, screen displaying combined floodgate timeout signal then, end of test (EOT) automatically, required power supply cuts off, detects data automatically and stores automatically;
(10) if yes, then screen displaying is closed a floodgate and is put signal in place and begin to show the breaker closing duration, and judges whether to arrive the interval time of setting, if not, then continues to carry out this step;
(11) if yes, then isolating switch is carried out electricity dropout test, and further judge to thread off and whether put in place;
(12) if judge that dropout is not in place, screen displaying dropout timeout signal, automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(13) if judge to thread off and to put in place, screen displaying is threaded off and is put signal in place and begin to show drop-away time, and judges whether to arrive the interval of the drop-away time of setting;
(14) if not, then continue step (13),
(15) if yes, then screen displaying is closed the branch number of times and is added up 1 time, total accumulative frequency is presented on the touch-screen, and judges that closing the sum total whether the branch number of times reach setting divides number of times;
(16) if yes, then automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(17) if not, then export pulse and carry out sub-switching operation to stepper motor, the separating brake back screen displaying separating brake signal that puts in place that puts in place, and return step (9);
(18) if separating brake is not in place, screen displaying separating brake timeout signal then, end of test (EOT) automatically, required power supply cuts off, detects data automatically and stores automatically;
When being set at TW series omnipotent breaker product,
Then enter TW series omnipotent breaker product and measure program automatically, it may further comprise the steps:
(1) sets isolating switch on/off switch number of times, on/off switch interval time and dropout mode at touch-screen;
(2) further setting is that shunted exciter tripping, transient voltage are threaded off or the time-delay undervoltage tripping;
(3) after selecting the time-delay undervoltage tripping, further setting is under-voltage the returning or the time-delay low-voltage of time-delay again;
(4) after the dropout mode is selected, select each electric annex power supply of isolating switch again, after selecting each electric annex power supply of isolating switch, promptly enter and begin test;
(5) judge whether contactor on/off switch number of times, on/off switch interval time is zero, if yes then screen displaying " you must be provided with on/off switch number of times and on/off switch interval time " or corresponding signal and return step (1);
(6) if be not judged as not, judge further then whether accessory power supply is selected, if not, then screen displaying " woulds you please select shunt opening, under-voltage, motor, power switch " or corresponding signal, and returns step (4);
(7) if judge that isolating switch on/off switch number of times, on/off switch are non-vanishing interval time, and if power supply is chosen as and is, judge at first whether product on this station was tested last time to finish, if yes, then enter automatic test and begin;
(8) if not, screen displaying " do not test as yet and finish, continue? by this station " or corresponding signal, further judge whether again to continue, if yes then by last subparameter setup test, and enter automatic test; If, then do not empty secondary data, and enter automatic test;
(9) automatically test beginning, at first output signal is carried out closing operation to isolating switch, and judges whether closing operation puts in place, if not, screen displaying combined floodgate timeout signal then, automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically;
(10) if yes, then screen displaying is closed a floodgate and is put signal in place and begin to show the breaker closing duration, and further judges whether setting value interval time into setting, if not, then continues to carry out this step;
(11) if yes, then carry out circuit breaker tripping operation, and further judge to thread off and whether put in place, if not, screen displaying dropout timeout signal then, end of test (EOT) automatically, required power supply cuts off, detects data automatically and stores automatically;
(12) if yes, the screen displaying signal that puts in place of threading off then, and begin to show drop-away time, and further judge whether to reach setting value interval time again, if not, then continue to carry out this step;
(13) if judgement reaches setting value interval time, then close the branch number of times and add up 1 time, and total accumulative frequency is presented on the touch-screen;
(14) judge whether to reach the total degree of the on/off switch of setting, if yes, end of test (EOT) automatically then, required power supply cuts off, detects data automatically and stores automatically;
(15) if not, then power on, isolating switch is carried out stored energy operation to energy storage motor;
(16) judge whether the motor stored energy operation puts in place, if yes, then the screen displaying separating brake signal that puts in place powers on to making electromagnet, and returns step (9).
(17) if not, then the screen displaying separating brake is overtime, automatic end of test (EOT), required power supply cuts off, detects data automatically and stores automatically.
8. according to the control method of claim 6 or 11 described multifunctional integrative life experimental platforms, it is characterized in that: when screen displaying combined floodgate timeout signal, separating brake timeout signal or thread off when overtime, and the voice suggestion failure cause.
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