CN102879657B - Method for checking phase sequences of lines - Google Patents
Method for checking phase sequences of lines Download PDFInfo
- Publication number
- CN102879657B CN102879657B CN201210379092.XA CN201210379092A CN102879657B CN 102879657 B CN102879657 B CN 102879657B CN 201210379092 A CN201210379092 A CN 201210379092A CN 102879657 B CN102879657 B CN 102879657B
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- phase
- insulation resistance
- lines
- wiring
- circuit
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- 238000000819 phase cycle Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a method for checking phase sequences of lines. The method is used for measuring insulation resistance values of all phases and inspecting the correctness of construction wiring of lines by using tools such as an insulation resistance meter and ground wires according to know phase sequences on two sides of lines. The method is simple and practical, operators can master and use the method easily, whether wiring phase sequences of lines are correct can be determined quickly, problems caused by wrong wiring of phase sequences can be found out timely and rectified in construction phases, and the situation that reworking and rectification are conducted when wrong wiring phase sequences of lines are found out after charged lines are put into operation can be avoided, so that the working efficiency is improved, the on-site labor intensity of workers is reduced, the electricity supply reliability is improved, and the safe operation of power grids can be guaranteed.
Description
Technical field
The present invention relates to power line construction technical field, particularly relate to a kind of line phase-sequence detection checking method.
Background technology
Transmission of electricity is after boosting with the electric energy that generator sends by transformer, then realizes through opertaing device access transmission lines of electricity such as isolating switchs.Check Phase Sequence is needed, if the consequence that there will be has by line phase-sequence detection wrong: reactive power compensator has very strict requirement to input A, B, C phase sequence after newly-built 10-220KV circuit, transformation line construction.If phase sequence wrong, or the phase place of current sampling and the phase of voltage sampling, power factor all can be caused to detect inaccurate, there will be the situation that can not automatically drop into, also there will be the phenomenon of over-compensation; If by another circuit of distribution interval access paired running, under the prerequisite not having nuclear phase, phase sequence mistake, access can cause phase fault, causes accident to occur, and therefore circuit puts into operation to transformer station, and nuclear phase work is very important.
Summary of the invention
The invention provides one can increase work efficiency, alleviate personnel on site's labour intensity, guarantee the line phase-sequence detection checking method of electric power netting safe running.
Realizing the technical scheme that above-mentioned purpose takes is: a kind of line phase-sequence detection checking method, by the known phase sequence in circuit both sides, utilize the instrument such as insulation resistance meter, ground wire, measure the method for every phase insulating resistance value, the correctness of inspection line construction wiring, newly-built or reconstruct circuit A phase nuclear phase with N side for M side, the steps include:
A) by M side, N side B, C phase uses ground wire short circuit respectively and ground connection (figure mono-shown in), use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values (not being 0), illustrate that M side is newly-built or to reconstruct wiring between circuit A phase correct with N side;
If b) a) step 5000V insulation resistance meter reading is 0, in N side, A, C phase is used ground wire short circuit respectively and ground connection (shown in figure bis-), use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values (not being 0), illustrate that M side A phase is newly-built with N side or reconstruct circuit B to be connected, wiring makes a mistake, and side wiring must be readjusted;
If c) b) step 5000V insulation resistance meter reading is 0, in N side, A, B phase is used ground wire short circuit respectively and ground connection (shown in figure tri-), use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values (not being 0), illustrate that M side A phase is newly-built with N side or reconstruct circuit C to be connected, wiring makes a mistake, and side wiring must be readjusted;
Pass through a) b) c) three steps get rid of one by one can determine M side, accuracy that N side A is connected, by that analogy, can check this circuit B phase, C phase phase sequence, judge the correctness of connections in time.
The inventive method is simple, practical, be easy to operating personnel and grasp use, can judge that whether connections phase sequence is correct fast, rectify and improve because of phase sequence wrong problem at construction stage Timeliness coverage, after can avoiding that circuit is charged and putting into operation, find connections phase sequence mistake, then the appearance of rectification situation of carrying out doing over again, and then increase work efficiency, alleviate personnel on site's labour intensity, improve power supply reliability, guarantee the safe operation of electrical network.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the schematic diagram of step a) of the present invention;
Fig. 2 is the schematic diagram of step b) of the present invention;
Fig. 3 is the schematic diagram of step c) of the present invention.
Embodiment
As shown in Figure 1, a kind of line phase-sequence detection checking method, by the known phase sequence in circuit both sides, utilize the instrument such as insulation resistance meter, ground wire, measure the method for every phase insulating resistance value, the correctness of inspection line construction wiring, newly-built or reconstruct circuit A phase nuclear phase with N side for M side, the steps include:
A) by M side, N side B, C phase uses ground wire short circuit respectively and ground connection (figure mono-shown in), use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values (not being 0), illustrate that M side is newly-built or to reconstruct wiring between circuit A phase correct with N side;
If b) a) step 5000V insulation resistance meter reading is 0, in N side, A, C phase is used ground wire short circuit respectively and ground connection (shown in figure bis-), use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values (not being 0), illustrate that M side A phase is newly-built with N side or reconstruct circuit B to be connected, wiring makes a mistake, and side wiring must be readjusted;
If c) b) step 5000V insulation resistance meter reading is 0, in N side, A, B phase is used ground wire short circuit respectively and ground connection (shown in figure tri-), use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values (not being 0), illustrate that M side A phase is newly-built with N side or reconstruct circuit C to be connected, wiring makes a mistake, and side wiring must be readjusted;
Pass through a) b) c) three steps get rid of one by one can determine M side, accuracy that N side A is connected, by that analogy, can check this circuit B phase, C phase phase sequence, judge the correctness of connections in time.
The inventive method is simple, practical, be easy to operating personnel and grasp use, can judge that whether connections phase sequence is correct fast, rectify and improve because of phase sequence wrong problem at construction stage Timeliness coverage, after can avoiding that circuit is charged and putting into operation, find connections phase sequence mistake, then the appearance of rectification situation of carrying out doing over again, and then increase work efficiency, alleviate personnel on site's labour intensity, improve power supply reliability, guarantee the safe operation of electrical network.
Claims (1)
1. a line phase-sequence detection checking method, newly-built or reconstruct circuit A phase nuclear phase with N side for M side, it is characterized in that, the steps include:
A) M side, N side B, C phase are used ground wire short circuit and ground connection respectively, use in M side 5000V insulation resistance meter to measure A phase insulation resistance, if reading is regime values, illustrate that M side is newly-built or to reconstruct wiring between circuit A phase correct with N side;
If b) a) step 5000V insulation resistance meter reading is 0, in N side, A, C phase is used ground wire short circuit and ground connection respectively, use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values, illustrate that M side A phase is newly-built with N side or reconstruct circuit B to be connected, wiring makes a mistake, and side wiring must be readjusted;
If c) b) step 5000V insulation resistance meter reading is 0, in N side, A, B phase is used ground wire short circuit and ground connection respectively, use 5000V insulation resistance meter to measure A phase insulation resistance in M side, if reading is regime values, illustrate that M side A phase is newly-built with N side or reconstruct circuit C to be connected, wiring makes a mistake, and side wiring must be readjusted;
Pass through a) b) c) three steps get rid of one by one can determine M side, accuracy that N side A is connected, by that analogy, can check, thus judge the correctness of connections this circuit B phase, C phase phase sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379092.XA CN102879657B (en) | 2012-10-09 | 2012-10-09 | Method for checking phase sequences of lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210379092.XA CN102879657B (en) | 2012-10-09 | 2012-10-09 | Method for checking phase sequences of lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102879657A CN102879657A (en) | 2013-01-16 |
| CN102879657B true CN102879657B (en) | 2015-07-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210379092.XA Active CN102879657B (en) | 2012-10-09 | 2012-10-09 | Method for checking phase sequences of lines |
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| Country | Link |
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| CN (1) | CN102879657B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269035B (en) * | 2013-04-27 | 2015-08-05 | 国家电网公司 | Nuclear phase assisting device when a kind of cable is installed |
| CN104569629A (en) * | 2015-02-03 | 2015-04-29 | 孙超 | Phase sequence tester of low-voltage cables |
| CN104849574A (en) * | 2015-03-26 | 2015-08-19 | 国家电网公司 | Anti-induction electric phase sequence checking device for power transmission line |
| CN113162040B (en) * | 2021-04-29 | 2023-06-20 | 西安热工研究院有限公司 | System and method for power supply non-voltage nuclear phase for high-voltage plant of power plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2931232B2 (en) * | 1995-03-31 | 1999-08-09 | 三英電業株式会社 | Auxiliary device for phase confirmation |
| CN101644730A (en) * | 2009-08-25 | 2010-02-10 | 广东电网公司广州供电局 | Circuit nuclear-phase method |
| CN101923114A (en) * | 2010-07-15 | 2010-12-22 | 安徽省电力公司宣城供电公司 | Resistance phasing method for medium-voltage distribution line looped network |
| CN102128983A (en) * | 2011-01-25 | 2011-07-20 | 福建省电力有限公司三明电业局 | Method for measuring phase of power transmission and distribution line |
-
2012
- 2012-10-09 CN CN201210379092.XA patent/CN102879657B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2931232B2 (en) * | 1995-03-31 | 1999-08-09 | 三英電業株式会社 | Auxiliary device for phase confirmation |
| CN101644730A (en) * | 2009-08-25 | 2010-02-10 | 广东电网公司广州供电局 | Circuit nuclear-phase method |
| CN101923114A (en) * | 2010-07-15 | 2010-12-22 | 安徽省电力公司宣城供电公司 | Resistance phasing method for medium-voltage distribution line looped network |
| CN102128983A (en) * | 2011-01-25 | 2011-07-20 | 福建省电力有限公司三明电业局 | Method for measuring phase of power transmission and distribution line |
Non-Patent Citations (3)
| Title |
|---|
| 电源核相的方法及注意事项;万里;《电气试验》;20001231(第4期);第48-49页 * |
| 线路参数测试及核相;百度文库;《http://wenku.***.com/link?url=AejKxnMazdo-XYzS-fuZvDPeboCYyNAs7cfZz0GcLWfS5lp792lPTQvaqLnbH7hQR597xLwWZqcTu_hMmWSmRDXuN8Colo3BLBQKxjWlLYm》;20110408;第1-5页 * |
| 输变电工程投运现场核相试验方法;欧阳青;《电力安全技术》;20021231;第4卷(第2期);第1-3页 * |
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| CN102879657A (en) | 2013-01-16 |
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Owner name: ZHOUKOU POWER SUPPLY COMPANY OF STATE GRID HENAN E Effective date: 20150609 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: HUNAN ELECTRIC POWER COMPANY, ZHOUKOU POWER SUPPLY COMPANY Effective date: 20150609 |
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Effective date of registration: 20150609 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Zhoukou Power Supply Company of State Grid Henan Electric Power Company Applicant after: Henan Hang Zhi patent Services Co., Ltd Address before: Zhoukou City, Henan province 466000 taeho Road No. 1 Applicant before: Zhoukou Power Supply Branch of Henan Electric Power Company |