CN101504449B - Experiment tester for spare power automatic switching apparatus - Google Patents
Experiment tester for spare power automatic switching apparatus Download PDFInfo
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- CN101504449B CN101504449B CN 200910025894 CN200910025894A CN101504449B CN 101504449 B CN101504449 B CN 101504449B CN 200910025894 CN200910025894 CN 200910025894 CN 200910025894 A CN200910025894 A CN 200910025894A CN 101504449 B CN101504449 B CN 101504449B
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- 238000002474 experimental method Methods 0.000 title claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000004088 simulation Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 description 15
- 238000012795 verification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 230000007257 malfunction Effects 0.000 description 1
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- 230000010363 phase shift Effects 0.000 description 1
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Abstract
The invention relates to an experimental tester with an automatic switching device, which comprises an adjustable single phase current output unit, an analog breaker unit, a three-phase alternate current and voltage output unit, an auxiliary relay, a central proceeding unit and a computer. The analog breaker unit comprises three independent analog breakers and operation power sources; each analog breaker circuit beaker is provided with corresponding tripping and switching instruction input port, a tripping and switching setting port and an output normally-closed contact port or normally-open contact port; normally-open contacts of two control switches and three analog breakers form voltage which is output; a common end of the central processing unit is connected with the operational power source; the output end of the central processing unit is respectively connected with the tripping and switching setting port of each analog breaker; a voltage control end of the central processing unit is respectively connected with the input ends of the two control switches and the auxiliary relay; and the central processing unit is connected with the computer, can generate various signals required by the experiment, and has the characteristics of simple structure, convenient operation and improvement on the working efficiency of the experiment.
Description
Technical field
The present invention relates to a kind of experiment tester of backup auto-activating device, belong to electric system experimental test technical field.
Background technology
At present, backup auto-activating device has obtained extensive utilization in 110KV electric substation.But the verification to backup auto-activating device is comparatively complicated, because 110KV electric substation full cut-off chance is seldom, usually only can be to the part of stopping transport, and therefore throwing fully needs to use mimic-disconnecting switch to replace the switch of actual motion in the verification.The staff need take much time and go to remove the breaker tripping and closing that backup auto-activating device and switch in service interrelate on other protection screens in service and open into the amount circuit connection before the verification; test signal is by Microcomputer Protection test unit output current and voltage ac analog; and provide by the separate analogue isolating switch and to open into amount and the reception amount of leaving; test backup auto-activating device actuation time, reconnection one by one again after the off-test by the time test instrument again.Therefore equipment volume used in the existing backup auto-activating device test is huge, heavy, cost is high since in disconnection process the bigger risk of existence on the safety, operate loaded down with trivial details, wiring is complicated.
Summary of the invention
It is simple to the purpose of this invention is to provide a kind of wiring, easy to operate, the experiment tester of the backup auto-activating device that integrated level is high.
The present invention is that the technical scheme that achieves the above object is: a kind of experiment tester of backup auto-activating device, it is characterized in that: comprise adjustable single-phase current output unit, mimic-disconnecting switch unit, three-phase alternating voltage output unit, auxiliary relay, central processing unit and computing machine
Described adjustable single-phase current output unit comprises single-phase alternating current source and output controller, and the output terminal in single-phase alternating current source is connected with output controller, and output controller has the single-phase current output port;
Described mimic-disconnecting switch unit comprises three independently mimic-disconnecting switch DL1, DL2 and DL3 and operating powers, operating power is connected with the power end of every mimic-disconnecting switch respectively, and every mimic-disconnecting switch has corresponding separating brake and reclosing command input port, separating brake and combined floodgate setting port and output normally closed contact port or normal opened contact port;
Described three-phase alternating voltage output unit comprises three normally open contact A1, the A2 of three-phase alternating-current supply, two gauge tap K1 and K2 and three mimic-disconnecting switch DL1, DL2 and DL3 and the output loop that A3 forms, the open circuit normally open contact A1 of DL1 of gauge tap K1 and simulation is serially connected between three-phase alternating-current supply and the voltage output end U1, the normally open contact A2 of gauge tap K2 and mimic-disconnecting switch DL2 is serially connected between three-phase alternating-current supply and the voltage output end U2, and the normally open contact A3 of simulation road device DL3 is connected across the output terminal of normally open contact A1 and normally open contact A2;
Described auxiliary relay has main transformer fault output contact port;
The common port of described central processing unit is connected with operating power, output terminal is connected with combined floodgate setting port with the separating brake of every mimic-disconnecting switch respectively, voltage controling end is connected with the input end of gauge tap K1, K2 and auxiliary relay respectively, and the input/output end port of central processing unit is connected with the input/output end port of computing machine.
Backup auto-activating device of the present invention is made of adjustable single-phase current output unit, mimic-disconnecting switch unit, three-phase alternating voltage output unit, auxiliary relay, central processing unit and computing machine; the integrated level height; testing equipments such as bulky Microcomputer Protection tester, separate analogue isolating switch have been replaced; reduce the volume of pilot system greatly, reduce cost.The present invention is owing to have a plurality of interface end of backup auto-activating device test usefulness, and wiring is simple, does not need to test preliminary work, and is easy to operate, can simulate the pilot project of all backup auto-activating devices.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the electrical schematic diagram of mimic-disconnecting switch of the present invention.
Fig. 3 is the structured flowchart of three-phase alternating-current supply of the present invention.
Fig. 4 is the electrical schematic diagram of three-phase alternating voltage output unit of the present invention.
Embodiment
See shown in Figure 1ly, the experiment tester of backup auto-activating device of the present invention comprises adjustable single-phase current output unit 1, mimic-disconnecting switch unit 5, three-phase alternating voltage output unit 2, auxiliary relay 6, central processing unit 4 and computing machine 3.
Adjustable single-phase current output unit 1 of the present invention comprises single-phase alternating current source and output controller, the output terminal in single-phase alternating current source is connected with output controller, output controller has single-phase current output port I, provides test required 0～5A simulation load current by the single-phase current output port to backup auto-activating device 7.
See shown in Figure 1, mimic-disconnecting switch of the present invention unit 5 comprises three independently mimic-disconnecting switch DL1, DL2 and DL3 and operating powers, operating power is connected with the power end of every mimic-disconnecting switch respectively, every mimic-disconnecting switch has corresponding separating brake, reclosing command input port, and separating brake, combined floodgate are set port and exported normally closed or the normal opened contact port.See shown in Figure 2, each mimic-disconnecting switch of the present invention includes closing relay J1 and separating brake relay J 2, on the loop of the normally closed interlock serial connection separating brake relay J 2 of closing relay J1, on the loop of the closing relay J1 of the normally closed interlock serial connection of separating brake relay J 2, and the interlock of the normally open contact of closing relay J1 and mimic-disconnecting switch.When the outside or inner closure earlier of closing a floodgate, closing relay J1 action, this moment is because the separating brake open circuit, the normally closed interlock closure of separating brake relay J 2, the normally open contact of closing relay J1 is by closing relay J1 self-sustaining, at this moment another normally open contact DL1 closure of closing relay J1 is exported normally closed signal; When the separating brake closure, 2 actions of separating brake relay J, the normally closed interlock open circuit of separating brake relay J 2, the self-sustaining of lock relay J 1 was lost efficacy, at this moment normally open contact DL1 opens a way, signal is often opened in output, the normally closed interlock closure of closing relay J1, and a normally open contact of separating brake relay J 2 can allow 2 self-sustainings of separating brake relay J.And when outside or inner separating brake elder generation closure, 2 actions of separating brake relay J, this moment is because the open circuit that closes a floodgate, the normally closed interlock closure of closing relay J1, a normally open contact of separating brake relay J 2 is by 2 self-sustainings of separating brake relay J, at this moment the normally open contact DL1 of separating brake relay J 2 open circuit is exported and is often opened signal; Closed if close a floodgate, closing relay J1 action, the normally closed interlock open circuit of closing relay J1, the self-sustaining of separating brake relay J 2 was lost efficacy, at this moment DL1 closure, export normally closed signal, the normally closed interlock closure of separating brake relay J 2, the normally open contact of closing relay J1 can allow relay 1 self-sustaining.Make three mimic-disconnecting switches accept divide-shut brake instruction the carrying out divide-shut brake action of sending tested backup auto-activating device 7 outsides, also receive central processing unit 4 and send inner default divide-shut brake instruction carrying out divide-shut brake action, and by output normally closed or normal opened contact port to tested backup auto-activating device 7 output respective switch amounts.
See shown in Figure 2, the present invention also has normally closed switch failure contact C1 on closing relay J1, separating brake relay J 2 has the malfunctioning contact C2 of normally closed separating brake, when the mimic-disconnecting switch switch failure, mimic-disconnecting switch is response external and inner energization control signal not, when separating brake was malfunctioning, mimic-disconnecting switch is response external and inner separating brake control signal, mimic-disconnecting switch malfunction well not equally.
See shown in Figure 1ly, three-phase alternating voltage output unit 2 of the present invention comprises three normally open contact A1, the A2 of three-phase alternating-current supply, two gauge tap and three mimic-disconnecting switch DL1, DL2 and DL3 and the output loop that A3 forms.See shown in Figure 3, three-phase alternating current of the present invention source is made of sine-wave generator, phase shift circuit and power amplifier and isolating transformer, power amplifier adopts the OPA541 chip, maximum output current can reach 10A, actual output voltage is fed back to die terminals, realize the stability of output three-phase voltage.See Fig. 1, shown in 4, gauge tap K1 of the present invention and the normally open contact A1 that simulates the DL1 that opens circuit are serially connected in three-phase alternating-current supply and voltage output end U1, the normally open contact A2 string of gauge tap K2 and mimic-disconnecting switch DL2 is at three-phase alternating-current supply and voltage output end U2, the normally open contact A3 of simulation road device DL3 is connected across between the output terminal of normally open contact A1 and normally open contact A2, make mimic-disconnecting switch simulate interior ridge method fully, each normally open contact A1, A2 and A3 respectively with separately closing relay J1 interlock, form logical combination, the voltage that output is set by the gauge tap K2 and the normally open contact of respectively simulating the road device.And also be parallel with hand switch SK1 on the branch road open circuit being connected in series of normally open contact A1 of DL1 of gauge tap K1 and simulation, gauge tap K2 also is parallel with hand switch SK2 with being connected in series of normally open contact A2 of simulating the DL2 that opens circuit on the branch road, also can control the voltage that output is set manually.
Auxiliary relay 6 of the present invention has main transformer fault output contact port, at initiatively displacement of mimic-disconnecting switch, provide main transformer fault output contact by auxiliary relay 6, the original state of this auxiliary relay 6 is open circuit, when pilot project begins any state of back three mimic-disconnecting switches when becoming " separating brake ", main transformer fault output contact state becomes closed 50～100 milliseconds, returns open-circuit condition then.
See shown in Figure 1ly, the common port of central processing unit 4 of the present invention is connected with operating power, has the independent operation power supply in three mimic-disconnecting switches, thus only need link to each other with the divide-shut brake instruction input contact of backup auto-activating device, and need not to add operating power.This central processing unit 4 adopts the AVRAtmega128 single-chip microcomputer, and adopt uCOS-II as native system real-time operation software platform, because Atmega128 is the high SoC chip of a integrated level, the almost embedded required control modules of all native systems are so can realize multichannel control in real time and measurement.The output terminal of central processing unit 4 is connected with the setting port that closes a floodgate with the separating brake of every mimic-disconnecting switch respectively, can be by the opening and closing state of computing machine 3 default isolating switchs, the divide-shut brake instruction that central processing unit 4 sends makes each mimic-disconnecting switch carry out the divide-shut brake action, the voltage controling end of central processing unit 4 is connected with the input end of gauge tap K1, K2 and auxiliary relay 6 respectively, gauge tap K1, K2 make mimic-disconnecting switch simulate the electric system internal bridge fully, to produce the required analog quantity of test.The input/output end port of central processing unit 4 is connected with the input/output end port of computing machine 3, computing machine 3 is by USB interface and central processing unit 4 communications, computing machine 3 adopts notebook computer, transmission work order and object information, and the work order that central processing unit 4 analytical Calculation machines 3 transmit, and each mimic-disconnecting switch is controlled by two gauge tap, computing machine 3 passes through special software, each mimic-disconnecting switch original state and operating state can be set arbitrarily, and set malfunctioning node in advance, any fault mode of ridge method in the simulation, and the mimic-disconnecting switch action of each configuration of correspondence is safeguarded by sending into the host computer demonstration and preserving the sampling back constantly, central processing unit 4 receives U1, U2 output voltage state change instruction or certain mimic-disconnecting switch state change and promptly pick up counting, write down the time that all the other mimic-disconnecting switch states change, recording status changes situation simultaneously, and can form test report, computing machine 3 can export to test result information in the Excel document, is convenient to information integration and final-period management.
The present invention greatly provides the dirigibility of test owing to can satisfy the verification work of electric system internal bridge backup auto-activating device fully, and the integrated level height has improved production efficiency.
Claims (4)
1. the experiment tester of a backup auto-activating device is characterized in that: comprise adjustable single-phase current output unit, mimic-disconnecting switch unit, three-phase alternating voltage output unit, auxiliary relay, central processing unit and computing machine,
Described adjustable single-phase current output unit comprises single-phase alternating current source and output controller, and the output terminal in single-phase alternating current source is connected with output controller, and output controller has the single-phase current output port;
Described mimic-disconnecting switch unit comprises three independently mimic-disconnecting switch DL1, DL2 and DL3 and operating powers, operating power is connected with the power end of every mimic-disconnecting switch respectively, and every mimic-disconnecting switch has corresponding separating brake and reclosing command input port, separating brake and combined floodgate setting port and output normally closed contact port or normal opened contact port;
Described three-phase alternating voltage output unit comprises three normally open contact A1, the A2 of three-phase alternating-current supply, two gauge tap K1 and K2 and three mimic-disconnecting switch DL1, DL2 and DL3 and the output loop that A3 forms, the open circuit normally open contact A1 of DL1 of gauge tap K1 and simulation is serially connected between three-phase alternating-current supply and the voltage output end U1, the normally open contact A2 of gauge tap K2 and mimic-disconnecting switch DL2 is serially connected between three-phase alternating-current supply and the voltage output end U2, and the normally open contact A3 of simulation road device DL3 is connected across the output terminal of normally open contact A1 and normally open contact A2;
Described auxiliary relay has main transformer fault output contact port;
The common port of described central processing unit is connected with operating power, output terminal is connected with combined floodgate setting port with the separating brake of every mimic-disconnecting switch respectively, voltage controling end is connected with the input end of gauge tap K1, K2 and auxiliary relay respectively, and the input/output end port of central processing unit is connected with the input/output end port of computing machine.
2. the experiment tester of backup auto-activating device according to claim 1, it is characterized in that: described every mimic-disconnecting switch comprises closing relay J1 and separating brake relay J 2, on the loop of the normally closed interlock B1 serial connection separating brake relay J 2 of closing relay J1, on the loop of the normally closed interlock B2 serial connection closing relay J1 of separating brake relay J 2, and the interlock of the normally open contact of closing relay J1 and mimic-disconnecting switch.
3. the experiment tester of backup auto-activating device according to claim 2 is characterized in that: also have normally closed switch failure contact C1 on the described closing relay J1; Separating brake relay J 2 has the malfunctioning contact C2 of normally closed separating brake.
4. the experiment tester of backup auto-activating device according to claim 1, it is characterized in that: described gauge tap K1 also is parallel with hand switch SK1 with being connected in series of normally open contact A1 of simulating the DL1 that opens circuit on the branch road, and gauge tap K2 also is parallel with hand switch SK2 with being connected in series of normally open contact A2 of simulating the DL2 that opens circuit on the branch road.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910025894 CN101504449B (en) | 2009-03-13 | 2009-03-13 | Experiment tester for spare power automatic switching apparatus |
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| CN 200910025894 CN101504449B (en) | 2009-03-13 | 2009-03-13 | Experiment tester for spare power automatic switching apparatus |
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| CN101504449A CN101504449A (en) | 2009-08-12 |
| CN101504449B true CN101504449B (en) | 2011-07-20 |
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| CN102033181B (en) * | 2010-11-25 | 2014-09-10 | 河南省电力公司洛阳供电公司 | Portable spare power automatic switching calibrator |
| CN102508088B (en) * | 2011-12-28 | 2014-01-29 | 国家电网公司 | Checking instrument of backup automatic switching device |
| CN104897984A (en) * | 2013-05-22 | 2015-09-09 | 江苏省电力公司常州供电公司 | Backup power automatic switching device intelligent calibration system with convenient operation |
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| CN105866566A (en) * | 2016-03-23 | 2016-08-17 | 国家电网公司 | Auxiliary device for automatic switching test of standby power supply |
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| CN106841841A (en) * | 2016-12-08 | 2017-06-13 | 国网北京市电力公司 | Low-voltage equipment test device |
| CN107102232B (en) * | 2017-06-13 | 2023-04-28 | 广东电网有限责任公司佛山供电局 | Portable analog circuit breaker |
| CN107402335A (en) * | 2017-07-17 | 2017-11-28 | 中铁电气化局集团有限公司 | A kind of offline calibration equipment of backup auto-activating device and method |
| CN108776301A (en) * | 2018-05-03 | 2018-11-09 | 国网湖南省电力有限公司 | The fast switch-dividing calibration equipment of direct current and its method of calibration |
| US10803008B2 (en) * | 2018-09-26 | 2020-10-13 | Quanta Computer Inc. | Flexible coupling of processor modules |
| CN112086966B (en) * | 2020-09-11 | 2022-03-01 | 上海施耐德电气电力自动化有限公司 | Switch simulation system |
| CN112129979A (en) * | 2020-09-22 | 2020-12-25 | 国网山东省电力公司高青县供电公司 | Improved generation simulation circuit breaker |
| CN112505442A (en) * | 2020-10-16 | 2021-03-16 | 国网山东省电力公司金乡县供电公司 | Uninterrupted power verification device for spare power automatic switching device, spare power automatic switching device and method |
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Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20120921 |
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Effective date of registration: 20120921 Address after: 213003 Jiangsu province Changzhou City Tianning District Bureau Street No. 27 Patentee after: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 213003 Jiangsu province Changzhou City Tianning District Bureau Street No. 27 Patentee before: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. |