CN102879657A - Method for checking phase sequences of lines - Google Patents

Method for checking phase sequences of lines Download PDF

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Publication number
CN102879657A
CN102879657A CN201210379092XA CN201210379092A CN102879657A CN 102879657 A CN102879657 A CN 102879657A CN 201210379092X A CN201210379092X A CN 201210379092XA CN 201210379092 A CN201210379092 A CN 201210379092A CN 102879657 A CN102879657 A CN 102879657A
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China
Prior art keywords
phase
insulation resistance
lines
wiring
circuit
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Application number
CN201210379092XA
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Chinese (zh)
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CN102879657B (en
Inventor
薛鸿鹏
申志远
刘亚洲
陈全兴
陈茜
张燕
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Henan Hang Zhi patent Services Co., Ltd
State Grid Corp of China SGCC
Zhoukou Power Supply Co of State Grid Henan Electric Power Co Ltd
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Zhoukou Power Supply Co of State Grid Henan Electric Power Co Ltd
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Priority to CN201210379092.XA priority Critical patent/CN102879657B/en
Publication of CN102879657A publication Critical patent/CN102879657A/en
Application granted granted Critical
Publication of CN102879657B publication Critical patent/CN102879657B/en
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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

A kind of line phase-sequence detection checking method
Technical field
The present invention relates to the power line construction technical field, relate in particular to a kind of line phase-sequence detection checking method.
Background technology
Transmission of electricity is after boosting with the electric energy that transformer sends generator, realizes through the opertaing devices such as isolating switch access transmission line of electricity again.Need Check Phase Sequence behind newly-built 10-220KV circuit, transformation line construction, if the consequence that the line phase-sequence detection wrong will occur has: reactive power compensator has very strict requirement to input A, B, C phase sequence.If the phase sequence wrong, the perhaps phase place homophase of the phase place of current sampling and voltage sampling, it is inaccurate all can to cause power factor to detect, and the situation that can not automatically drop into can occur, and the phenomenon of over-compensation also can occur; If another circuit by distribution interval access paired running is not having under the prerequisite of nuclear phase, the phase sequence mistake, access can cause phase fault, causes accident to occur, so circuit puts into operation to transformer station, and nuclear phase work is very important.
Summary of the invention
The invention provides a kind of can increasing work efficiency, alleviate the on-the-spot labour intensity of personnel, guarantee the line phase-sequence detection checking method of electric power netting safe running.
Realize that the technical scheme that above-mentioned purpose is taked is: a kind of line phase-sequence detection checking method, by the known phase sequence in circuit both sides, utilize the instruments such as insulation resistance meter, ground wire, measure the method for every phase insulating resistance value, the correctness of check line construction wiring, newly-built or reconstruction circuit A phase nuclear phase the steps include: as example with the N side take the M side
A) M side, N side B, C are used respectively ground wire short circuit and ground connection (shown in the figure one) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate the M side with the N side newly-built or reconstruction circuit A mutually between wiring correct;
B) if a) step 5000V insulation resistance meter reading is 0, in the N side A, C are used respectively ground wire short circuit and ground connection (shown in the figure two) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate that M side A phase or reconstruction circuit B newly-built with the N side is connected, wiring makes a mistake, and a side joint line must be readjusted;
C) if b) step 5000V insulation resistance meter reading is 0, in the N side A, B are used respectively ground wire short circuit and ground connection (shown in the figure three) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate that M side A phase or reconstruction circuit C newly-built with the N side is connected, wiring makes a mistake, and a side joint line must be readjusted;
Pass through a) b) c) three steps get rid of the accuracy that can determine that M side, N side A are connected one by one, by that analogy, can check this circuit B phase, C phase phase sequence, in time judge the correctness of circuit wiring.
The inventive method is simple, practical, be easy to the operating personnel and grasp use, whether can judge fast circuit wiring phase sequence correct, in time find because of phase sequence wrong problem and rectify and improve in the construction stage, can avoid the charged rear discovery circuit wiring phase sequence mistake that puts into operation of circuit, the appearance of the rectification situation of doing over again again, and then increase work efficiency, alleviate the on-the-spot labour intensity of personnel, improve power supply reliability, guarantee the safe operation of electrical network.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing:
Fig. 1 is the synoptic diagram of step a) of the present invention;
Fig. 2 is the synoptic diagram of step b) of the present invention;
Fig. 3 is the synoptic diagram of step c) of the present invention.
Embodiment
As shown in Figure 1, a kind of line phase-sequence detection checking method is by the known phase sequence in circuit both sides, utilize the instruments such as insulation resistance meter, ground wire, measure the method for every phase insulating resistance value, the correctness of check line construction wiring, newly-built or reconstruction circuit A phase nuclear phase the steps include: as example with the N side take the M side
A) M side, N side B, C are used respectively ground wire short circuit and ground connection (shown in the figure one) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate the M side with the N side newly-built or reconstruction circuit A mutually between wiring correct;
B) if a) step 5000V insulation resistance meter reading is 0, in the N side A, C are used respectively ground wire short circuit and ground connection (shown in the figure two) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate that M side A phase or reconstruction circuit B newly-built with the N side is connected, wiring makes a mistake, and a side joint line must be readjusted;
C) if b) step 5000V insulation resistance meter reading is 0, in the N side A, B are used respectively ground wire short circuit and ground connection (shown in the figure three) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate that M side A phase or reconstruction circuit C newly-built with the N side is connected, wiring makes a mistake, and a side joint line must be readjusted;
Pass through a) b) c) three steps get rid of the accuracy that can determine that M side, N side A are connected one by one, by that analogy, can check this circuit B phase, C phase phase sequence, in time judge the correctness of circuit wiring.
The inventive method is simple, practical, be easy to the operating personnel and grasp use, whether can judge fast circuit wiring phase sequence correct, in time find because of phase sequence wrong problem and rectify and improve in the construction stage, can avoid the charged rear discovery circuit wiring phase sequence mistake that puts into operation of circuit, the appearance of the rectification situation of doing over again again, and then increase work efficiency, alleviate the on-the-spot labour intensity of personnel, improve power supply reliability, guarantee the safe operation of electrical network.

Claims (1)

1. line phase-sequence detection checking method, newly-built or reconstruction circuit A phase nuclear phase is characterized in that as example with the N side take the M side, the steps include:
A) M side, N side B, C are used respectively ground wire short circuit and ground connection (shown in the figure one) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate the M side with the N side newly-built or reconstruction circuit A mutually between wiring correct;
B) if a) step 5000V insulation resistance meter reading is 0, in the N side A, C are used respectively ground wire short circuit and ground connection (shown in the figure two) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate that M side A phase or reconstruction circuit B newly-built with the N side is connected, wiring makes a mistake, and a side joint line must be readjusted;
C) if b) step 5000V insulation resistance meter reading is 0, in the N side A, B are used respectively ground wire short circuit and ground connection (shown in the figure three) mutually, use the 5000V insulation resistance meter to measure A phase insulation resistance in the M side, if reading is regime values (not being 0), illustrate that M side A phase or reconstruction circuit C newly-built with the N side is connected, wiring makes a mistake, and a side joint line must be readjusted;
Pass through a) b) c) three steps get rid of the accuracy that can determine that M side, N side A are connected one by one, and by that analogy, can check this circuit B phase, C phase phase sequence, thereby judge the correctness of circuit wiring.
CN201210379092.XA 2012-10-09 2012-10-09 Method for checking phase sequences of lines Active CN102879657B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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CN102879657B CN102879657B (en) 2015-07-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103269035A (en) * 2013-04-27 2013-08-28 国家电网公司 Phase checking auxiliary device in process of cable installation
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

Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
万里: "电源核相的方法及注意事项", 《电气试验》, no. 4, 31 December 2000 (2000-12-31) *
欧阳青: "输变电工程投运现场核相试验方法", 《电力安全技术》, vol. 4, no. 2, 31 December 2002 (2002-12-31) *
百度文库: "线路参数测试及核相", 《HTTP://WENKU.BAIDU.COM/LINK?URL=AEJKXNMAZDO-XYZS-FUZVDPEBOCYYNAS7CFZZ0GCLWFS5LP792LPTQVAQLNBH7HQR597XLWWZQCTU_HMMWSMRDXUN8COLO3BLBQKXJWLLYM》, 8 April 2011 (2011-04-08) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103269035A (en) * 2013-04-27 2013-08-28 国家电网公司 Phase checking auxiliary device in process of cable installation
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

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