CN105785197A - Distribution automation device integrated tester - Google Patents
Distribution automation device integrated tester Download PDFInfo
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- CN105785197A CN105785197A CN201610266119.2A CN201610266119A CN105785197A CN 105785197 A CN105785197 A CN 105785197A CN 201610266119 A CN201610266119 A CN 201610266119A CN 105785197 A CN105785197 A CN 105785197A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Abstract
The present invention provides a distribution automation device integrated tester. The distribution automation device integrated tester comprises a chassis and a circuit device, and the circuit device comprises an industrial control computer used for testing master control and providing an operation interface; a liquid crystal touch screen used for realizing the man-machine information interaction; a signal processing unit which is in information interaction with the industrial control computer and an I/O unit, is used for processing a switching value signal and generating and outputting the voltage and current signals according to the set parameters; the I/O unit used for the input/output of the switching value signal; a voltage amplifier used for outputting an adjustable AC voltage, a current amplifier used for outputting an adjustable AC current and a power supply unit used for supplying power. The distribution automation device integrated tester of the present invention is small in size, light in weight and lower in cost, is easy to carry, is convenient for wiring at use, saves the man-hours, and can detect a tested distribution automation device at a higher precision.
Description
Technical field
The present invention relates to power distribution automation field, be specifically related to a kind of distributing automation apparatus comprehensive tester.
Background technology
Along with the progress of social development and technology, in power distribution network, the use of automation equipment is more prevalent.Distributing automation apparatus generally has remote signalling, remote measurement, remote control and relay protection function.Distributing automation apparatus is in new clothes or transformation process; all need its performance and state are detected; especially need DTU (DataTransferunit is specifically designed to and serial data is converted to IP data or IP data are converted to the wireless terminal device that serial data is undertaken by cordless communication network transmitting) is carried out to sample, relay settings verification, measure of time, signal circuit inspection, linkage test and the work such as exchange with phone channel.At present distributing automation apparatus is tested and generally adopt at least 3 kinds of test equipment such as protective calibration instrument, DC source and mimic-disconnecting switch to carry out; wherein, protective calibration instrument for adding electric current, voltage simulation accuracy of measurement measurement and the relay protection function of tested device being tested to tested device；Mimic-disconnecting switch is for testing the remote control circuit of tested device, switching value loop；DC source is for providing working power to tested device.Its existence is disadvantageous in that: one is that the protective calibration instrument of common employing is mainly formed by pressure regulator and phase shifter combinations, and volume and weight is relatively big, and measuring accuracy is not high；Two need when being work to carry three set test equipment simultaneously, and three complete equipments are the equipment that volume and weight is bigger, carry and be inconvenient for during work；Three is that on-the-spot test point volume is big, adopts three complete equipments to test, it is necessary to be repeatedly performed and disconnect line, has a strong impact on work efficiency, extends power off time；Four is adopt three complete equipments relatively costly.
Summary of the invention
It is an object of the invention to: for the problems of the prior art, it is provided that a kind of volume is little, lightweight, portable, less costly and easy-to-connect when using, tested device can carry out the distributing automation apparatus comprehensive tester of degree of precision detection.
The technical scheme is that the distributing automation apparatus comprehensive tester of the present invention, including cabinet and circuit arrangement；Cabinet includes cabinet panel；It is structurally characterized in that: above-mentioned circuit arrangement includes industrial computer, liquid crystal touch screen, signal processing unit, I/O unit, voltage amplifier, current amplifier and power subsystem；Wherein:
Industrial computer, is used for testing master control and providing operation interface；
Liquid crystal touch screen, is used for realizing man-machine information interaction, and liquid crystal touch screen electrically connects with industrial computer two-way signaling；
Signal processing unit, mutual with industrial computer and I/O unit information, it is used for processing on-off model, producing and output voltage, current signal according to setup parameter；Signal processing unit electrically connects with industrial computer two-way signaling；
I/O unit, for the input/output of on-off model；I/O unit electrically connects with signal processing unit two-way signaling；
Voltage amplifier, carries out power amplification for the voltage signal that signal processing unit is sent, exports the 3 adjustable alternating voltages of tunnel 0～120V；The input of voltage amplifier electrically connects with signal processing unit；
Current amplifier, carries out power amplification for the current signal that signal processing unit is sent, exports the 3 adjustable alternating currents of tunnel 0～30A；The input of current amplifier electrically connects with signal processing unit；
Power subsystem, including AC/DC module, transformator and rectification filtering module；Wherein, AC/DC module, for being converted into the output of DC110V power supply by AC220V civil power；Transformator, for being converted into 3 tunnel alternating current power supply outputs by AC220V civil power；Rectification filtering module, for transformator is exported 3 tunnel alternating current power supplys are rectified, after Filtering Processing, export 2 tunnel alternating current power supplys and No. 1 DC source；Wherein 1 tunnel alternating current power supply provides working power for voltage amplifier, and another 1 tunnel alternating current power supply provides working power to current amplifier；No. 1 DC source is for providing working power to signal processing unit, I/O unit, industrial computer and liquid crystal touch screen.
Further scheme is: above-mentioned signal processing unit includes the MCU module, DSP module, D/A module and the operational amplifier that are sequentially connected in series；Wherein:
MCU module, for the process of signal and operational order；Signal processing unit is electrically connected with industrial computer and I/O unit two-way signaling respectively by its MCU module；
DSP module, for the process of the phase and amplitude to the voltage/current signals that MCU module transmits；
D/A module, for converting the digital signal that DSP module sends to analogue signal；
Operational amplifier, for the analogue signal that D/A module sends being amplified, exports 3 road voltage signals and 3 road current signals.
Further scheme is: the D/A module of above-mentioned signal processing unit is 16 D/A modular converters.
Further scheme is: above-mentioned circuit arrangement also includes the on and off switch, alternating voltage outlet terminal subgroup, electric current outlet terminal subgroup, direct voltage output terminals subgroup, intake terminals subgroup and the amount of the outputing terminals subgroup that are arranged on cabinet panel；
Alternating voltage outlet terminal subgroup electrically connects with the outfan of voltage amplifier；Electric current outlet terminal subgroup electrically connects with the outfan of current amplifier；Direct voltage output terminals subgroup electrically connects with the outfan of the AC/DC module of power subsystem；Intake terminals subgroup and the amount of outputing terminals subgroup all electrically connect with I/O cell signal；On and off switch is for controlling the break-make of the external AC220V mains supply of tester.
Further scheme is: the 1 changeable output in tunnel 0～250V adjustable dc voltage in 3 tunnel outputs of above-mentioned voltage amplifier；The 1 changeable output in tunnel 0～15A adjustable DC electric current in 3 tunnel outputs of current amplifier.
Further scheme also has: above-mentioned circuit arrangement also include being arranged on cabinet panel for using time the communication interface of external communication equipment and the USB interface of circumscribed USB equipment；Communication interface and USB interface electrically connect with industrial computer two-way signaling respectively.
The present invention has positive effect: the distributing automation apparatus comprehensive tester of (1) present invention; it not only possesses all functions of the protective calibration instrument of field-checking distribution automation device, DC source and mimic-disconnecting switch in prior art; and the present invention is single devices; volume is little; lightweight, easy to carry.(2) the distributing automation apparatus comprehensive tester of the present invention, it is in use, owing to being single devices, it is very convenient that input and output disconnect line, compare to three complete equipments of the prior art, can significantly save the time waste because frequently disconnecting tape, be effectively improved work efficiency, shorten the power failure detection time.(3) the distributing automation apparatus comprehensive tester of the present invention, it is in use, according to the difference being test for distributing automation apparatus and project, staff has only to conveniently set up parameter by liquid crystal touch screen, the tester i.e. corresponding automatically voltage that output is required, current signal completes test, and checks corresponding testing result easily by liquid crystal touch screen, compares to prior art, measuring accuracy is higher, and labor intensity is greatly reduced.
Accompanying drawing explanation
Fig. 1 is the circuit structure schematic block diagram of the present invention；
Fig. 2 is the structural representation of the cabinet panel of the present invention and the interlock circuit device that is arranged on cabinet panel.
Accompanying drawing labelling in above-mentioned accompanying drawing is as follows:
Cabinet panel 1, liquid crystal touch screen 2, on and off switch 3, alternating voltage outlet terminal subgroup 4, electric current outlet terminal subgroup 5, direct voltage output terminals subgroup 6, intake terminals subgroup 7, the amount of outputing terminals subgroup 8, communication interface 9, usb 10.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
(embodiment 1)
Seeing Fig. 1 and Fig. 2, the distributing automation apparatus comprehensive tester of the present embodiment, it is mainly made up of cabinet and circuit arrangement.Cabinet has casing (attached not shown in FIG.) and cabinet panel 1.Circuit arrangement is mainly by the power subsystem being arranged in cabinet, signal processing unit, I/O unit, voltage amplifier, current amplifier and industrial computer and be arranged on the liquid crystal touch screen 2 on cabinet panel 1, on and off switch 3, alternating voltage outlet terminal subgroup 4, electric current outlet terminal subgroup 5, direct voltage output terminals subgroup 6, intake terminals subgroup 7, the amount of outputing terminals subgroup 8, communication interface 9 and usb 10 and form.
Power subsystem is mainly made up of AC/DC module, transformator and rectification filtering module.AC/DC module is for being converted into DC110V power supply by AC220V civil power external when using, and distributing automation apparatus tested during for using provides working power；Transformator exports to rectification filtering module for AC220V civil power external when using is converted into 3 tunnel alternating current power supplys, and transformator preferably employs linear transformer；The 3 tunnel alternating current power supplys that transformator is provided by rectification filtering module are rectified, after Filtering Processing, export 2 tunnel alternating current power supplys and No. 1 DC source: wherein 1 tunnel alternating current power supply is to voltage amplifier, and another 1 tunnel alternating current power supply is to current amplifier；No. 1 DC source is for providing working power to signal processing unit, I/O unit, industrial computer and liquid crystal touch screen 2；The input of AC/DC module and transformator is through the external AC220V civil power of on and off switch 3 of concatenation；The outfan of AC/DC module electrically connects with direct voltage output terminals subgroup 6；The input of rectification filtering module concatenates with the outfan of transformator；1 outfan of rectification filtering module electrically connects with the power supply of voltage amplifier；Another 1 outfan of rectification filtering module electrically connects with the power supply of current amplifier.
Signal processing unit is for the process and the voltage of output test, current signal with mutual, the on-off model of industrial computer；Signal processing unit is mainly made up of the MCU module being sequentially connected in series, DSP module, D/A module and operational amplifier；Wherein, MCU module is for the process of signal and operational order；DSP module (english abbreviation of DSP and Digital Signal Processing) utilizes the feature that its speed is fast, precision is high, according to the setup parameter that MCU module transmits, the voltage/current signals needing output is carried out phase and amplitude process, produces the waveshape signal of corresponding voltage/current；Signal after DSP module process is sent to operational amplifier after D/A module converts analogue signal to and carries out signal amplification；Operational amplifier is provided with 3 road voltage signal output ends and 3 road current signal output ends；D/A module is 16 D/A conversion module.
I/O unit is changed for the connection of input/output；I/O unit electrically connects with the MCU module two-way signaling of signal processing unit；I/O unit electrically connects with intake terminals subgroup 7 and the amount of outputing terminals subgroup 8 signal.
Voltage amplifier carries out power amplification for the 3 road voltage signals that the operational amplifier of signal processing unit is sent, and exports the 3 adjustable alternating voltages of tunnel 0～120V, and wherein 1 tunnel is changeable for output 0～250V adjustable dc voltage；For test；The input of voltage amplifier electrically connects with the operational amplifier of signal processing unit；The outfan of voltage amplifier electrically connects with alternating voltage outlet terminal subgroup 4；Voltage amplifier obtains working power from power module.
Current amplifier carries out power amplification for the 3 road current signals that the operational amplifier of signal processing unit is sent, and exports the 3 adjustable alternating currents of tunnel 0～30A, and wherein 1 tunnel is changeable for output DC0～15A adjustable DC electric current；For DC relay or corresponding DC current test during for using；The input of current amplifier electrically connects with the operational amplifier of signal processing unit；The outfan of current amplifier electrically connects with electric current outlet terminal subgroup 5；Current amplifier obtains working power from power module.
Industrial computer is used for realizing test master control and providing operation interface；Industrial computer is built-in with distributing automation apparatus synthetic test program, by liquid crystal touch screen 2 operation display interface；Industrial computer electrically connects with the MCU module of signal processing unit, liquid crystal touch screen 2, communication interface 9 and usb 10 two-way signaling respectively.
Liquid crystal touch screen 2 is used for being operated by interface and realizes man-machine information interaction, such as the setting of test parameter and work process, the test display of relevant parameter, the selection of test event, the startup of test and stopping etc..
On and off switch 3 is for controlling the break-make of the external power supply of tester.
Alternating voltage outlet terminal subgroup 4 includes UA, UB, UC and UN totally 4 binding posts；During use, this tester is electrically connected with tested distributing automation apparatus by 4 binding post cables of alternating voltage outlet terminal subgroup 4, exports the 3 adjustable alternating voltages of tunnel 0～120V or switching output 1 tunnel 0～120V adjustable dc voltage.
Electric current outlet terminal subgroup 5 includes IA, IB, IC and IN totally 4 binding posts；During use, this tester is electrically connected with tested distributing automation apparatus by 4 binding post cables of electric current outlet terminal subgroup 5, exports the 3 adjustable alternating currents of tunnel 0～30A or switching output 1 tunnel can 0～15A adjustable DC electric current；.
Direct voltage output terminals subgroup 6 includes positive pole and negative pole totally 2 binding posts；During use, this tester is electrically connected with tested distributing automation apparatus by direct voltage output terminals subgroup 6 cable, exports DC110V power supply.
Intake terminals subgroup 7 includes A, B, C, R, a, b, c, r8 group totally 16 binding posts；The amount of outputing terminals subgroup 8 includes 4 groups of totally 8 binding posts, and during use, this tester is electrically connected with tested distributing automation apparatus by intake terminals subgroup 7 and the amount of outputing terminals subgroup 8 cable, it is achieved the input of on-off model and output.
External relevant communication equipment when communication interface 9 is for using, external communication equipment is mutual by communication interface 9 and industrial computer；External relevant USB device when usb 10 is for using.USB device is mutual by usb 10 and industrial computer.
The distributing automation apparatus comprehensive tester of the present embodiment, its operation principle is summarized as follows:
When the on and off switch 3 on cabinet panel 1 closes, tester starts, and power subsystem exports DC110V working power to tested device；Industrial computer is by liquid crystal touch screen 2 display operation main menu, after selecting a certain test event, industrial computer opens the supply power soft switch of voltage amplifier and current amplifier, if now pressing the power amplifier button of liquid crystal touch screen 2 display, then voltage amplifier and/or current amplifier amplifier power supply are knocked down, power amplifier energy normal operation；Industrial computer is according to test event and set parameter, calculate various of-state voltage, current waveform data, and it is sent to signal processing unit, it is sent to DSP module phase modulation through the MCU module of signal processing unit, amplitude modulation processes and produces corresponding voltage, converted to analogue signal by D/A module after current waveform signal and carry out signal amplification through operational amplifier, voltage/current signals after amplification carries out voltage/current power amplifier amplification through voltage amplifier and/or current amplifier, export to tested device from the alternating voltage outlet terminal subgroup 4 cabinet panel 1 and/or electric current outlet terminal subgroup 5 again；Simultaneously, the on-off model mutual with tested device through intake terminals subgroup 7 and/or the amount of outputing terminals subgroup 8, I/O unit, signal processing unit MCU module after mutual with industrial computer, industrial computer send several while constantly inquire about I/O module, until being completed.
(application examples)
The distributing automation apparatus comprehensive tester of previous embodiment, it is summarized as follows for the test process of the primary cut-out of one of distributing automation apparatus:
1, open tester power supply, carry out parameter setting by liquid crystal touch screen 2, set alternating voltage output 57.5V, alternating current output 5A；
2, tester is accessed primary cut-out secondary voltage, current measurement circuit by voltage, electric current line；Checking that the display of primary cut-out protective relaying device measures whether magnitude of voltage is 57.5V, whether electric current is 5A；Display is normal, then illustrate that primary cut-out protective relaying device measures loop normal；
3, tester voltage, electric current line are accessed primary cut-out secondary voltage, current protection loop；Primary cut-out protective relaying device is set and crosses stream definite value 5A, check that whether primary cut-out divides from closing to；If so, then illustrate that primary cut-out protective relaying device protective loop is normal.
The distributing automation apparatus comprehensive tester of previous embodiment, it is for middle-low voltage switch cabinet or during DTU device to test, by tester by its intake terminals subgroup 7 handcart corresponding with middle-low voltage switch cabinet or DTU device side with the amount of outputing terminals subgroup 8, switch conjunction point position, cutter position etc. be connected；Open tester power supply, carry out corresponding parameter setting by liquid crystal touch screen 2；After starting test, tester detects I/O mouth repeatedly, conjugates if any location status, and tester is reacted in time by liquid crystal touch screen 2；If all going well, illustrate that the position loop of tested device is normal.
Above example is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique is without departing from the spirit and scope of the present invention; can also making various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into the scope of patent protection of the present invention.
Claims (6)
1. a distributing automation apparatus comprehensive tester, including cabinet and circuit arrangement；Cabinet includes cabinet panel；It is characterized in that: described circuit arrangement includes industrial computer, liquid crystal touch screen, signal processing unit, I/O unit, voltage amplifier, current amplifier and power subsystem；Wherein:
Industrial computer, is used for testing master control and providing operation interface；
Liquid crystal touch screen, is used for realizing man-machine information interaction, and liquid crystal touch screen electrically connects with industrial computer two-way signaling；
Signal processing unit, mutual with industrial computer and I/O unit information, it is used for processing on-off model, producing and output voltage, current signal according to setup parameter；Signal processing unit electrically connects with industrial computer two-way signaling；
I/O unit, for the input/output of on-off model；I/O unit electrically connects with signal processing unit two-way signaling；
Voltage amplifier, carries out power amplification for the voltage signal that signal processing unit is sent, exports the 3 adjustable alternating voltages of tunnel 0～120V；The input of voltage amplifier electrically connects with signal processing unit；
Current amplifier, carries out power amplification for the current signal that signal processing unit is sent, exports the 3 adjustable alternating currents of tunnel 0～30A；The input of current amplifier electrically connects with signal processing unit；
Power subsystem, including AC/DC module, transformator and rectification filtering module；Wherein, AC/DC module, for being converted into the output of DC110V power supply by AC220V civil power；Transformator, for being converted into 3 tunnel alternating current power supply outputs by AC220V civil power；Rectification filtering module, for transformator is exported 3 tunnel alternating current power supplys are rectified, after Filtering Processing, export 2 tunnel alternating current power supplys and No. 1 DC source；Wherein 1 tunnel alternating current power supply provides working power for voltage amplifier, and another 1 tunnel alternating current power supply provides working power to current amplifier；No. 1 DC source is for providing working power to signal processing unit, I/O unit, industrial computer and liquid crystal touch screen.
2. distributing automation apparatus comprehensive tester according to claim 1, it is characterised in that: described signal processing unit includes the MCU module, DSP module, D/A module and the operational amplifier that are sequentially connected in series；Wherein:
MCU module, for the process of signal and operational order；Signal processing unit is electrically connected with industrial computer and I/O unit two-way signaling respectively by its MCU module；
DSP module, for the process of the phase and amplitude to the voltage/current signals that MCU module transmits；
D/A module, for converting the digital signal that DSP module sends to analogue signal；
Operational amplifier, for the analogue signal that D/A module sends being amplified, exports 3 road voltage signals and 3 road current signals.
3. distributing automation apparatus comprehensive tester according to claim 2, it is characterised in that: the D/A module of described signal processing unit is 16 D/A modular converters.
4. distributing automation apparatus comprehensive tester according to claim 1, it is characterised in that: described circuit arrangement also includes the on and off switch, alternating voltage outlet terminal subgroup, electric current outlet terminal subgroup, direct voltage output terminals subgroup, intake terminals subgroup and the amount of the outputing terminals subgroup that are arranged on cabinet panel；
Alternating voltage outlet terminal subgroup electrically connects with the outfan of voltage amplifier；Electric current outlet terminal subgroup electrically connects with the outfan of current amplifier；Direct voltage output terminals subgroup electrically connects with the outfan of the AC/DC module of power subsystem；Intake terminals subgroup and the amount of outputing terminals subgroup all electrically connect with I/O cell signal；On and off switch is for controlling the break-make of the external AC220V mains supply of tester.
5. distributing automation apparatus comprehensive tester according to claim 1, it is characterised in that: the 1 changeable output in tunnel 0～250V adjustable dc voltage in 3 tunnel outputs of described voltage amplifier；The 1 changeable output in tunnel 0～15A adjustable DC electric current in 3 tunnel outputs of current amplifier.
6. distributing automation apparatus comprehensive tester according to claim 1, it is characterised in that: described circuit arrangement also include being arranged on cabinet panel for using time the communication interface of external communication equipment and the USB interface of circumscribed USB equipment；Communication interface and USB interface electrically connect with industrial computer two-way signaling respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266119.2A CN105785197A (en) | 2016-04-26 | 2016-04-26 | Distribution automation device integrated tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266119.2A CN105785197A (en) | 2016-04-26 | 2016-04-26 | Distribution automation device integrated tester |
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| CN105785197A true CN105785197A (en) | 2016-07-20 |
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| CN201610266119.2A Pending CN105785197A (en) | 2016-04-26 | 2016-04-26 | Distribution automation device integrated tester |
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Cited By (3)
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| CN109975638A (en) * | 2019-04-23 | 2019-07-05 | 成都绎码科技有限公司 | A kind of on-off model monitoring device and method based on wireless transmission |
| CN110763934A (en) * | 2019-10-14 | 2020-02-07 | 许继电气股份有限公司 | Relay protection testing arrangement |
| CN113945880A (en) * | 2021-09-10 | 2022-01-18 | 中广核核电运营有限公司 | Automatic calibration device and method for testing distribution board relay protection device |
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Application publication date: 20160720 |