CN102495298B - Method for realizing line phase check by using programmable logic controller (PLC) - Google Patents
Method for realizing line phase check by using programmable logic controller (PLC) Download PDFInfo
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- CN102495298B CN102495298B CN 201110407139 CN201110407139A CN102495298B CN 102495298 B CN102495298 B CN 102495298B CN 201110407139 CN201110407139 CN 201110407139 CN 201110407139 A CN201110407139 A CN 201110407139A CN 102495298 B CN102495298 B CN 102495298B
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- 238000012795 verification Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 10
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Abstract
The invention belongs to the technical field of construction of a three-phase transmission line of a power system and in particular relates to a method for realizing line phase check by using a programmable logic controller (PLC). Two ends of the three-phase transmission line are respectively connected to a PLC phase checker, the motion of a relay is measured, a measurement result is transmitted to the PLC phase checker, the PLC phase checker performs operation, and a connection point which is output by the PLC lightens a measurement result display light character board 1 on the PLC phase checker to display the measurement result. The method has the advantages that: by adopting a direct current working voltage mode, the problem about alternating current induced voltage of the three-phase transmission line under a complicated electromagnetic environment is solved; a phase distinguish logic relationship is realized by a logic matrix of the PLC; the wiring working amount of a secondary loop can be greatly reduced; the PLC has a simple programming program and is easy to manufacture; and a quick phase check function can be realized, the phenomenon of phase errors is avoided, and working efficiency is remarkably improved.
Description
Technical field
The invention belongs to the technical field of electric system three phase line construction aspect, relate in particular to a kind of method that realizes the separate verification of circuit with PLC.
Background technology
In Overhead Transmission Line Construction of electric system, because three phase line aloft carries out needing commutation constantly in the shaft tower stringing process, so three separate corresponding relations in bad differentiation circuit two ends, very easily cause when sending electricity and to find phase sequence mistake phenomenon, like this with regard to directly cause because of can't distinguish three of causing because of continuous commutation separate between " misphase " phenomenon between an end and the other end.
Therefore, how before sending electricity, to carry out correct nuclear phase work, guarantee to send once success of electricity, just seem very necessary.With common the school line that carries out of live wire is not different to one section with the multimeter ohms range, one section overhead transmission line often needs to arrive up to a hundred kilometers distance through tens, during this time through commutation many times, each phase conductor space electromagnetic environment complexity of living in, can induce very high voltage between each phase conductor and between every phase and ground, common conducting method can not satisfy the needs of separate verification.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, a kind of method with the separate verification of PLC realization circuit is provided, purpose is to realize quick nuclear phase function, stops mistake and resembles the phenomenon generation, and can significantly improve work efficiency.
The present invention realizes that the technical scheme of inventing is as follows:
With the method for the separate verification of PLC realization circuit, at first three connection terminals with three phase line one end are connected to on three connection terminals on the separate checker of PLC;
Three connection terminals with three transmission line of electricity other ends are connected on other three connection terminals of the separate checker of another PLC again, the separate checker of the PLC of this end will be pressed three connection terminal situations of the three phase line that inserts automatically, make the measuring relay action, the contact of measuring relay is input to the PLC input end of " the separate checker of PLC ", PLC carries out logic output to the contact 3 connection situations that the measuring relay of importing inputs to PLC, and the measurement result of lighting on the separate checker of PLC by the contact of PLC output shows that alarm window 1 shows measurement result at last.
The separate checker of described PLC is to be provided with voltage generator, measuring relay, PLC Programmable Logic Controller 2 and measurement result to show alarm window more than 1 parts in housing; When carrying out the separate measurement of three phase line, by transmission line of electricity voltage generator and measuring relay are linked together.
Measuring relay J1, J2, J3 in the separate checker of described PLC, be made up of six branch relays for every:
J1 is composed in parallel by six branch relays: J1-1, J1-2, J1-3, J1-4, J1-5, J1-6;
J2 is composed in parallel by six branch relays: J2-1, J2-2, J2-3, J2-4, J2-5, J2-6;
J3 is composed in parallel by six branch relays: J3-1, J3-2, J3-3, J3-4, J3-5, J3-6;
It is about 50 volts that the operation voltage of J1-1, J 2-1, J3-1 is adjusted;
It is about 100 volts that the operation voltage of J1-2, J 2-2, J3-2 is adjusted;
It is about 150 volts that the operation voltage of J1-3, J 2-3, J3-3 is adjusted;
The operation voltage of J1-4, J 2-4, J3-4 is adjusted and is about-50 volts;
The operation voltage of J1-5, J 2-5, J3-5 is adjusted and is about-100 volts;
The operation voltage of J1-6, J 2-6, J3-6 is adjusted and is about-150 volts;
With the contact of above-mentioned 18 relays as opening into the switching value input end that is input to Programmable Logic Controller in the following order:
Ordering from the lowest order to the most significant digit is: J1-1, J1-2, J1-3, J1-4, J1-5, J1-6, J2-1, J2-2, J2-3, J2-4, J2-5, J2-6, J3-1, J3-2, J3-3, J4-4, J5-5, J6-6.
Described voltage generator adopts the mode of direct supply operating voltage, and direct supply can be that the dry cell connection in series-parallel is formed, and also can be obtained through transformer, rectification, filtering, loop of voltage regulation by the 220V alternating current.
80V, 100V operating voltage that described direct supply adopts; Also can change over other chores voltages, the operation voltage setting valve of 18 fast relays of relay J 1, J2, J3 correspondence also should change accordingly along with the size of direct supply operating voltage simultaneously.
Advantageous effect of the present invention is:
Adopt the mode of direct-current working volts among the present invention owing to the separate checker of described PLC, overcome the ac induction voltage problem of three phase line under complex electromagnetic environment, the logical relation of separate differentiation is to realize by the logic matrix of PLC Programmable Logic Controller.As above the DC operation loop is as the basis adopting, and the logic matrix of PLC Programmable Logic Controller can be simplified the wiring workload of secondary circuit greatly, and the PLC programming is simple, is easy to manufacture.Three phase line adds alternate direct supply operating voltage rather than adds alternating voltage over the ground, is in order to eliminate the electromagnetic induction interference of common mode interference and external electromagnetic field.It is that to consider that the power of direct supply can be done very little that DC relay adopts voltage-type rather than current mode, in order to alleviate the volume and weight of power supply.Can realize quick separate verifying function by the present invention, stop mistake and resemble the phenomenon generation, and can increase work efficiency significantly.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is the external structure synoptic diagram of the separate checker of PLC among the present invention;
Fig. 3 is the internal voltage generator schematic diagram of the separate checker of PLC among the present invention;
Fig. 4 is the internal relay schematic diagram of the separate checker of PLC among the present invention;
Fig. 5 is that the circuit of the relay J 1 in the separate checker of PLC, J2, J3 among the present invention is formed schematic diagram;
Fig. 6 is PLC input and output result schematic diagram among the present invention.
Among the figure: measurement result shows alarm window 1, and PLC Programmable Logic Controller 2, measuring relay input to the contact 3 of PLC.
The present invention is further detailed explanation below in conjunction with drawings and the specific embodiments.
Embodiment
Embodiment 1:
The present invention is a kind of method with the separate verification of PLC realization circuit, carries out the signal emission with direct supply, outputs to Programmable Logic Controller PLC with the actuating of relay and contact and realizes logic function, arrives and differentiates the purpose that phase sequence is indicated the result.
As Fig. 1-shown in Figure 6, realize that with PLC the method for the separate verification of circuit is as follows:
At first three connection terminals with three phase line one end are connected to on three connection terminals on the separate checker of PLC;
Three connection terminals with three transmission line of electricity other ends are connected on three connection terminals of the separate checker of another PLC again, the separate checker of the PLC of this end will be pressed three connection terminal situations of the three phase line that inserts automatically, make the measuring relay action, the contact of measuring relay is input to PLC Programmable Logic Controller 2 input ends of " the separate checker of PLC ", the measuring relay of PLC inputs to the contact 3 connection situations of PLC and carries out logic output, and the measurement result of lighting on the separate checker of PLC by the contact of PLC output shows that alarm window 1 shows measurement result at last.
PLC is exactly the part of separate checker: separate checker is made up of voltage generator, measuring relay, measurement result demonstration alarm window more than 1 parts, contact without any circuit in normal condition between voltage generator and the measuring relay, only when carrying out the separate measurement of three phase line, just by transmission line of electricity itself both are linked together.
Measuring relay J1, J2, J3 in the separate checker of described PLC, be made up of six branch relays for every:
J1 is composed in parallel by six branch relays: J1-1, J1-2, J1-3, J1-4, J1-5, J1-6,
J2 is composed in parallel by six branch relays: J2-1, J2-2, J2-3, J2-4, J2-5, J2-6,
J3 is composed in parallel by six branch relays: J3-1, J3-2, J3-3, J3-4, J3-5, J3-6.
It is about 50 volts that the operation voltage of J1-1, J 2-1, J3-1 is adjusted,
It is about 100 volts that the operation voltage of J1-2, J 2-2, J3-2 is adjusted,
It is about 150 volts that the operation voltage of J1-3, J 2-3, J3-3 is adjusted,
The operation voltage of J1-4, J 2-4, J3-4 is adjusted and is about-50 volts,
The operation voltage of J1-5, J 2-5, J3-5 is adjusted and is about-100 volts,
The operation voltage of J1-6, J 2-6, J3-6 is adjusted and is about-150 volts.
With the contact of above-mentioned 18 relays as opening into the switching value input end that is input to Programmable Logic Controller in the following order:
Ordering from the lowest order to the most significant digit is: J1-1, J1-2, J1-3, J1-4, J1-5, J1-6, J2-1, J2-2, J2-3, J2-4, J2-5, J2-6, J3-1, J3-2, J3-3, J4-4, J5-5, J6-6
(1) be the ABC phase sequence when being 111,000 011,000 000001, its testing result is: what link to each other with " 1 " terminal is the A phase, and what link to each other with " 2 " terminal is the B phase, and what link to each other with " 3 " terminal is the C phase.
(2) be the ACB phase sequence when being 001,000 110,000 000111, its testing result is: what link to each other with " 1 " terminal is the A phase, and what link to each other with " 2 " terminal is the C phase, and what link to each other with " 3 " terminal is the B phase.
(3) be the BCA phase sequence when being 000,001 000,111 000011, its testing result is: what link to each other with " 1 " terminal is the B phase, and what link to each other with " 2 " terminal is the C phase, and what link to each other with " 3 " terminal is the A phase.
(4) be the BAC phase sequence when being 011,000 111,000 001000, its testing result is: what link to each other with " 1 " terminal is the B phase, and what link to each other with " 2 " terminal is the A phase, and what link to each other with " 3 " terminal is the C phase.
(5) be the CAB phase sequence when being 000,011 001,000 111000, its testing result is: what link to each other with " 1 " terminal is the C phase, and what link to each other with " 2 " terminal is the A phase, and what link to each other with " 3 " terminal is the B phase.
(6) be the CBA phase sequence when being 000,111 000,001 011000, its testing result is: what link to each other with " 1 " terminal is the C phase, and what link to each other with " 2 " terminal is the B phase, and what link to each other with " 3 " terminal is the A phase.
The separate checker of described PLC adopts the mode of direct supply operating voltage.80V, 100V operating voltage that direct supply adopts; Also can change over other chores voltages, the operation voltage setting valve of 18 fast relays of relay J 1, J2, J3 correspondence also should change accordingly along with the size of direct supply operating voltage simultaneously.
When the present invention implements in reality among the figure 1
/, 2
/, 3
/With before the measurement loop that enters the back after 1,2,3 terminals are connected earlier through the filtering of 50HZ power frequency, do not draw among the figure.Concrete verification operation method and the course of work are as follows:
Under the separate situation of known first side transmission line of electricity three-phase terminal, how to determine this transmission line of electricity other end second side three unknown terminals as follows with the concrete operation method of the corresponding separate relation of first side:
1, the first side staff of three phase line is connected on A, B, the C connection terminal of a separate checker of PLC respectively on the A, the B that determine good separate three phase line, the C terminal.
2, the second side staff of three phase line elder generation is labeled as 1 arbitrarily with three terminals of the three phase line of second side
/, 2
/, 3
/, number terminal, 1,2,3 connection terminals with the separate checker of PLC are connected on 1 respectively then
/, 2
/, 3
/, on number terminal, the separate checker of the PLC of second side will be automatically by 1
/, 2
/, 3
/, terminal order demonstrate a kind of test result in ABC, ACB, BCA, BAC, six kinds of relations of CAB, CBA: if CBA phase sequence pilot lamp shows that alarm window is lighted, then explanation: link to each other with " 1 " terminal 1
/Be the C phase, link to each other with " 2 " terminal 2
/Be the A phase, link to each other with " 3 " terminal 3
/Be the B phase.
3, this kind test must be that the three phase line both sides respectively have a separate checker of PLC, and the both sides staff links up by phone and cooperates.Why the voltage generator of the separate checker of PLC and relay and measurement result display part being incorporated on the device, is the integrality of holding device, prevents partial loss.The separate checker of this PLC is selected voltage relay for use rather than is to consider that the power that signal power supply of end takes place provides can reach minimum with current relay, in order to reduce the volume and weight of the separate checker of PLC.
Claims (2)
1. realize the method for the separate verification of circuit with PLC, it is characterized in that:
At first three connection terminals of three phase line one end are connected on three connection terminals on the separate checker of PLC;
Three connection terminals with the three phase line other end are connected on three connection terminals of another group of the separate checker of another PLC again, the separate checker of the PLC of this end will be pressed three connection terminal situations of the three phase line that inserts automatically, make the measuring relay action, the contact of measuring relay is input to the PLC input end of " the separate checker of PLC ", PLC carries out logic output to contact (3) the connection situation that the measuring relay of importing inputs to PLC, and the measurement result of lighting on the separate checker of PLC by the contact of PLC output shows that alarm window (1) shows measurement result at last;
The separate checker of described PLC is to be provided with voltage generator, measuring relay, PLC Programmable Logic Controller (2) and measurement result to show several parts of alarm window (1) in housing; When carrying out the separate measurement of three phase line, by transmission line of electricity voltage generator and measuring relay are linked together;
Measuring relay J1, J2, J3 in the separate checker of described PLC, be made up of six branch relays for every:
J1 is composed in parallel by six branch relays: J1-1, J1-2, J1-3, J1-4, J1-5, J1-6;
J2 is composed in parallel by six branch relays: J2-1, J2-2, J2-3, J2-4, J2-5, J2-6;
J3 is composed in parallel by six branch relays: J3-1, J3-2, J3-3, J3-4, J3-5, J3-6;
It is about 50 volts that the operation voltage of J1-1, J 2-1, J3-1 is adjusted;
It is about 100 volts that the operation voltage of J1-2, J 2-2, J3-2 is adjusted;
It is about 150 volts that the operation voltage of J1-3, J 2-3, J3-3 is adjusted;
The operation voltage of J1-4, J 2-4, J3-4 is adjusted and is about-50 volts;
The operation voltage of J1-5, J 2-5, J3-5 is adjusted and is about-100 volts;
The operation voltage of J1-6, J 2-6, J3-6 is adjusted and is about-150 volts;
With the contact of above-mentioned 18 relays as opening into the switching value input end that is input to Programmable Logic Controller in the following order:
Ordering from the lowest order to the most significant digit is: J1-1, J1-2, J1-3, J1-4, J1-5, J1-6, J2-1, J2-2, J2-3, J2-4, J2-5, J2-6, J3-1, J3-2, J3-3, J3-4, J3-5, J3-6;
Described voltage generator adopts the mode of direct supply operating voltage, and direct supply adopts 80V, 100V operating voltage.
2. the method that realizes the separate verification of circuit with PLC according to claim 1, it is characterized in that: described direct supply can be that the dry cell connection in series-parallel is formed, and also can be obtained through transformer, rectification, filtering, loop of voltage regulation by the 220V alternating current.
3.The method that realizes the separate verification of circuit with PLC according to claim 1, it is characterized in that: described direct supply can change over other chores voltage, and the operation voltage setting valve of 18 relays of relay J 1, J2, J3 correspondence also should change accordingly along with the size of direct supply operating voltage simultaneously.
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| CN 201110407139 CN102495298B (en) | 2011-12-09 | 2011-12-09 | Method for realizing line phase check by using programmable logic controller (PLC) |
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| CN 201110407139 CN102495298B (en) | 2011-12-09 | 2011-12-09 | Method for realizing line phase check by using programmable logic controller (PLC) |
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| CN102495298B true CN102495298B (en) | 2013-09-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2421658Y (en) * | 1999-05-22 | 2001-02-28 | 王建雷 | Cable correcting apparatus |
| CN101852831A (en) * | 2009-04-01 | 2010-10-06 | 上海纳杰电气成套有限公司 | Bus connection phase sequence detecting method of whole set of electrical device |
| CN102004193A (en) * | 2010-09-14 | 2011-04-06 | 徐国治 | Three-phase alternating-current phase sequence detecting method and device thereof |
| CN102012465A (en) * | 2010-01-21 | 2011-04-13 | 柳州市达迪通信设备有限公司 | Wire order test method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4731853B2 (en) * | 2004-08-02 | 2011-07-27 | 九州電力株式会社 | How to distinguish the phase sequence of distribution lines |
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- 2011-12-09 CN CN 201110407139 patent/CN102495298B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2421658Y (en) * | 1999-05-22 | 2001-02-28 | 王建雷 | Cable correcting apparatus |
| CN101852831A (en) * | 2009-04-01 | 2010-10-06 | 上海纳杰电气成套有限公司 | Bus connection phase sequence detecting method of whole set of electrical device |
| CN102012465A (en) * | 2010-01-21 | 2011-04-13 | 柳州市达迪通信设备有限公司 | Wire order test method |
| CN102004193A (en) * | 2010-09-14 | 2011-04-06 | 徐国治 | Three-phase alternating-current phase sequence detecting method and device thereof |
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Effective date of registration: 20121009 Address after: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Applicant after: Liaoning Shenyang Electric Power Supply Co., Ltd. Applicant after: State Grid Corporation of China Address before: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Applicant before: Liaoning Shenyang Electric Power Supply Co., Ltd. |
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Inventor after: Tao Yongmao Inventor after: Li Anping Inventor after: Li Yueyue Inventor before: Tao Yongmao Inventor before: Li Anping |
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Address after: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Patentee after: Shenyang Power Supply Company of State Grid Liaoning Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Patentee before: Liaoning Shenyang Electric Power Supply Co., Ltd. Patentee before: State Grid Corporation of China |