CN102495297A - Method for realizing phase check function by relay contact - Google Patents
Method for realizing phase check function by relay contact Download PDFInfo
- Publication number
- CN102495297A CN102495297A CN2011104071055A CN201110407105A CN102495297A CN 102495297 A CN102495297 A CN 102495297A CN 2011104071055 A CN2011104071055 A CN 2011104071055A CN 201110407105 A CN201110407105 A CN 201110407105A CN 102495297 A CN102495297 A CN 102495297A
- Authority
- CN
- China
- Prior art keywords
- phase
- relay
- connection terminals
- volts
- relay tip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention belongs to the technical field of construction of three-phase power transmission lines of a power system, and particularly relates to a method for realizing a phase check function by a relay contact. The method comprises the following steps of: respectively connecting three wire connection terminals of one end of the three-phase power transmission line to three wire connection terminals of a phase check device for realizing the phase check function by the relay contact; and respectively connecting three wire connection terminals of the other end of the three-phase power transmission line to three wire connection terminals of another phase check device for realizing the phase check function by the relay contact, wherein the phase check devices at the ends are connected in series with each other by contacts output by a relay, and can automatically analyze and test the three connected wire connection terminals of each three-phase power transmission line according to the connection sequence of the three wire connection terminals and transmit analysis and test results to display light word boards of the phase check devices, so a measurement result is displayed. According to the method, the problem of the alternating-current induction voltage of the three-phase power transmission line under a complicated electromagnetic environment is solved; furthermore, the quick phase check function is realized; a wrong phase phenomenon is avoided; and the work efficiency is improved remarkably.
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 nuclear phase function with relay tip.
Background technology
In Overhead Transmission Line Construction of electric system; Because three phase line needing in the shaft tower stringing process to carry out commutation constantly aloft; So three separate corresponding relations in bad differentiation circuit two ends; Very easily cause when sending electricity and to find phase sequence mistake phenomenon, so just directly cause because of distinguishing three of a causing end and " misphase " phenomenon between the other end between separate because of continuous commutation.For example at the muddy line of meeting of the 220KV of Shenyang City Hun River electric substation in 2007 " misphase " phenomenon just taking place when sending electricity, and when 66KV and 10KV rural power circuit send electricity, " misphase " phenomenon often took place also.
Therefore, how before sending electricity, to carry out correct nuclear phase work, guarantee to send once success of electricity, just seem very necessary, and at present domesticly also do not have very good nuclear phase instrument to appear on the market.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 need be through tens to up to a hundred kilometers distance; During this time through commutation many times; Each phase conductor space electromagnetic environment of living in is complicated, can induce very high voltage between each phase conductor and between every and the ground, and common conducting method can not satisfy the needs of separate verification.
Summary of the invention
The present invention is directed to the problem that exists in the above-mentioned prior art, a kind of method with relay tip realization nuclear phase function 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 following:
The method that realizes the nuclear phase function with relay tip is:
At first three connection terminals with three phase line one end are connected to on three connection terminals on the phasing tester of relay tip realization nuclear phase function;
Three connection terminals with three transmission line of electricity other ends are connected on three connection terminals of another group on another phasing tester of realizing the nuclear phase function with relay tip again; This end is realized the order that the phasing tester of nuclear phase function will be pressed three connection terminals of three phase transmission lines of electricity that inserted automatically with relay tip; After the contact series connection through relay output; Carry out analytical test, and the demonstration alarm window on analytical test result transmission to the phasing tester is shown measurement result.
Described phasing tester with relay tip realization nuclear phase function is in housing, to be provided with voltage generator and measuring relay, and housing is provided with the phase sequence display lamp, the phase sequence pilot lamp is started by the series loop of each relay tip, and the phase sequence pilot lamp is lighted alarm window.
Described relay J 1, J2, every of J3 are divided into six branch relays again,
J1 comprises J1-1, J1-2, J1-3, J1-4, J1-5, J1-6,
J2 comprises J2-1, J2-2, J2-3, J2-4, J2-5, J2-6,
J3 comprises J3-1, J3-2, J3-3, J3-4, J3-5, J3-6;
It is 50 volts that J1-1, J2-1, J3-1, its operation voltage adjust;
It is 100 volts that J1-2, J2-2, J3-2, its operation voltage adjust;
It is 150 volts that J1-3, J2-3, J3-3, its operation voltage adjust;
J1-4, J2-4, J3-4, its operation voltage adjust and are-50 volts;
J1-5, J2-5, J3-5, its operation voltage adjust and are-100 volts;
J1-6, J2-6, J3-6, its operation voltage adjust and are-150 volts.
Advantageous effect of the present invention is:
The present invention is owing to realize that with relay tip the phasing tester of nuclear phase function adopts the mode of direct-current working volts; Overcome the ac induction voltage problem of three phase line under complex electromagnetic environment, the logical relation of separate differentiation is to light alarm window after connecting through the difference between the contact of DC relay to realize.The DC operation loop can make the phasing tester principle be easily understood as the basis adopting as above, reduces the production difficulty, and easy to maintenance.The purpose that three phase line adds alternate direct-current working volts rather than adding interchange voltage-to-ground is in order to eliminate electromagnetic induction interference and common mode interference.The voltage generator of the phasing tester of relay tip realization nuclear phase function of the present invention and relay and The measured results show partly are incorporated on the device; Integrality that can holding device; The phenomenon that prevents partial loss takes place, and also can voltage generator and relay and The measured results show partly be split as two devices.Can realize quick nuclear phase function through 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 that the phase sequence of Fig. 1 is appraised and decided schematic diagram;
Fig. 3 is a second embodiment of the present invention circuit theory diagrams;
Fig. 4 is the phase sequence measurement result schematic diagram of Fig. 3;
Fig. 5 is a third embodiment of the present invention circuit theory diagrams;
Fig. 6 is the phase sequence measurement result schematic diagram of Fig. 5;
Fig. 7 is a fourth embodiment of the present invention circuit theory diagrams;
Fig. 8 is the phase sequence measurement result schematic diagram of Fig. 7;
Fig. 9 is a fifth embodiment of the present invention circuit theory diagrams;
Figure 10 is the phase sequence measurement result schematic diagram of Fig. 9;
Figure 11 is a sixth embodiment of the present invention circuit theory diagrams;
Figure 12 is the phase sequence measurement result schematic diagram of Figure 11;
Figure 13 is an external structure synoptic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip;
Figure 14 is an internal voltage generator schematic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip;
Figure 15 is an internal relay schematic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip;
Figure 16 forms schematic diagram with the circuit of the relay J 1 in the phasing tester of relay tip realization nuclear phase function, J2, J3 among the present invention;
Figure 17 is a phase sequence The measured results show part schematic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip.
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed explanation.
Embodiment
Embodiment 1:
The present invention is a kind of method with relay tip realization nuclear phase function, and its method is:
At first three connection terminals with three phase line one end are connected to on three connection terminals on the phasing tester of relay tip realization nuclear phase function;
Three connection terminals with three transmission line of electricity other ends are connected on three connection terminals of another group on another phasing tester of realizing the nuclear phase function with relay tip again; This end is realized the order that the phasing tester of nuclear phase function will be pressed three connection terminals that inserted automatically with relay tip; After the contact series connection through relay output; Carry out analytical test, the alarm window on analytical test result transmission to the phasing tester is shown measurement result.
Like Figure 13-shown in Figure 16, Figure 13 is an external structure synoptic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip; Figure 14 is an internal voltage generator schematic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip; Figure 15 is an internal relay schematic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip; Figure 16 forms schematic diagram with the circuit of the relay J 1 in the phasing tester of relay tip realization nuclear phase function, J2, J3 among the present invention.
The phasing tester with relay tip realization nuclear phase function described in the present invention is in housing, to be provided with voltage generator and measuring relay; Do not have getting in touch on the circuit between voltage generator and the measuring relay, only when carrying out nuclear phase work, just connect the two portions together.Housing is provided with the phase sequence display lamp, the phase sequence pilot lamp is started by the series loop of each relay tip, and the phase sequence pilot lamp is lighted alarm window.Wherein relay J 1, J2, every relay of J3 are made up of six branch relays:
J1 comprises J1-1, J1-2, J1-3, J1-4, J1-5, J1-6;
J2 comprises J2-1, J2-2, J2-3, J2-4, J2-5, J2-6;
J3 comprises J3-1, J3-2, J3-3, J3-4, J3-5, J3-6.
Wherein:
It is 50 volts that J1-1, J2-1, J3-1, its operation voltage adjust;
It is 100 volts that J1-2, J2-2, J3-2, its operation voltage adjust;
It is 150 volts that J1-3, J2-3, J3-3, its operation voltage adjust;
J1-4, J2-4, J3-4, its operation voltage adjust and are-50 volts;
J1-5, J2-5, J3-5, its operation voltage adjust and are-100 volts;
J1-6, J2-6, J3-6, its operation voltage adjust and are-150 volts.
Six relay J (1,2,3)-1; J (1,2,3)-2; J (1,2,3)-3; J (1,2,3)-4; J (1,2,3)-5; J (1,2,3)-6 working values adjust respectively for the MN two ends add respectively+50V ,+100V ,+150V ,-150V ,-50V ,-100V ,-150V moves during voltage
,Above-mentioned every relay can be exported three pairs of normal opened contacts and three pairs of normally closed contacts, and the SP through relay tip forms logical relation and is linked into the result and shows that the alarm window loop is lighted corresponding alarm window lamp, shows measurement result.
As depicted in figs. 1 and 2, Fig. 1 is circuit theory diagrams of the present invention; Fig. 2 is that the phase sequence of Fig. 1 is appraised and decided schematic diagram.
The concrete detecting operation method and the course of work of the present invention is following:
Under the separate situation of known first side transmission line of electricity three-phase terminal, how to confirm this transmission line of electricity other end second side three unknown terminals following with the concrete operation method of the corresponding separate relation of first side:
1, the first side staff of three phase line realizes that with relay tip A, B, the C connection terminal of the phasing tester of nuclear phase function are connected on respectively on the A of definite good separate three phase line, B, the C terminal with one.
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 will realize that 1,2,3 connection terminals of the phasing tester of nuclear phase function are connected on 1 respectively with relay tip then
/, 2
/, 3
/On number terminal, the second side will be automatically by 1
/, 2
/, 3
/The order of terminal demonstrates a kind of test result in ABC, ACB, BCA, BAC, CAB, six kinds of relations of CBA: if the demonstration alarm window of ABC phase sequence pilot lamp lighted, then the explanation: link to each other with phasing tester " 1 " terminal 1
/Be the A phase, link to each other with phasing tester " 2 " terminal 2
/Be the B phase, link to each other with phasing tester " 3 " terminal 3
/Be the C phase.Shown in figure 17, Figure 17 is a phase sequence The measured results show part schematic diagram of realizing the phasing tester of nuclear phase function among the present invention with relay tip.
3, this kind test must be that the three phase line both sides respectively have a phasing tester, and the both sides staff links up through phone and cooperates.Why the voltage generator of phasing tester and measuring relay and The measured results show partly being incorporated on the device, is the integrality of holding device, prevents partial loss.
Realize that with relay tip the phasing tester of nuclear phase function adopts the mode of direct-current working volts among the present invention; Overcome the ac induction voltage problem of three phase line under complex electromagnetic environment, the logical relation of separate differentiation is to light alarm window after connecting through the difference between the contact of DC relay to realize.The DC operation loop can make the phasing tester principle be easily understood as the basis adopting as above, reduces the production difficulty, and easy to maintenance.80V, 100V WV that direct supply described in the present invention adopts also can change over other sizes; The operation voltage setting valve of 18 fast relays of relay J 1, J2, J3 correspondence also should be done corresponding change thereupon; This DC voltage can form through transformer, rectification, filter circuit through the 220V AC power, also can be made up of a plurality of dc-batteries.Three phase line adds alternate direct-current working volts rather than adding exchanges voltage-to-ground, is in order to eliminate electromagnetic induction interference and common mode interference.
Embodiment 2:
Like Fig. 3 and shown in Figure 4, Fig. 3 is a second embodiment of the present invention circuit theory diagrams; Fig. 4 is the phase sequence measurement result schematic diagram of Fig. 3.
If the demonstration alarm window of ACB phase sequence pilot lamp is lighted, then explanation: link to each other with " 1 " terminal be A mutually, link to each other with " 2 " terminal be C mutually, with " 3 " terminal continuous be B mutually.Other is identical with embodiment 1.
Embodiment 3:
Like Fig. 5 and shown in Figure 6, Fig. 5 is a third embodiment of the present invention circuit theory diagrams; Fig. 6 is the phase sequence measurement result schematic diagram of Fig. 5.
If the demonstration alarm window of BCA phase sequence pilot lamp is lighted, then explanation: link to each other with " 1 " terminal be B mutually, link to each other with " 2 " terminal be C mutually, with " 3 " terminal continuous be A mutually.Other is identical with embodiment 1.
Embodiment 4:
Like Fig. 7 and shown in Figure 8, Fig. 7 is a fourth embodiment of the present invention circuit theory diagrams; Fig. 8 is the phase sequence measurement result schematic diagram of Fig. 7.
If the demonstration alarm window of BAC phase sequence pilot lamp is lighted, then explanation: link to each other with " 1 " terminal be B mutually, link to each other with " 2 " terminal be A mutually, with " 3 " terminal continuous be C mutually.Other is identical with embodiment 1.
Embodiment 5:
Like Fig. 9 and shown in Figure 10, Fig. 9 is a fifth embodiment of the present invention circuit theory diagrams; Figure 10 is the phase sequence measurement result schematic diagram of Fig. 9.
If the demonstration alarm window of CAB phase sequence pilot lamp is lighted, then explanation: link to each other with " 1 " terminal be C mutually, link to each other with " 2 " terminal be A mutually, with " 3 " terminal continuous be B mutually.Other is identical with embodiment 1.
Embodiment 6:
Like Figure 11 and shown in Figure 12, Figure 11 is a sixth embodiment of the present invention circuit theory diagrams; Figure 12 is the phase sequence measurement result schematic diagram of Figure 11.
If the demonstration alarm window of CBA phase sequence pilot lamp is lighted, then explanation: link to each other with " 1 " terminal be C mutually; Link to each other with " 2 " terminal be B mutually; Link to each other with " 3 " terminal be A mutually.Other is identical with embodiment 1.
Claims (3)
1. realize the method for nuclear phase function with relay tip, it is characterized in that:
At first three connection terminals with three phase line one end are connected to on three connection terminals on the phasing tester of relay tip realization nuclear phase function;
Three connection terminals with three transmission line of electricity other ends are connected on three connection terminals of another group on another phasing tester of realizing the nuclear phase function with relay tip again; This end is realized the order that the phasing tester of nuclear phase function will be pressed three connection terminals of three phase transmission lines of electricity that inserted automatically with relay tip; After the contact series connection through relay output; Carry out analytical test, and the demonstration alarm window on analytical test result transmission to the phasing tester is shown measurement result.
2. the method that realizes the nuclear phase function with relay tip according to claim 1; It is characterized in that: described phasing tester with relay tip realization nuclear phase function is in housing, to be provided with voltage generator and measuring relay; Housing is provided with the phase sequence display lamp, the phase sequence pilot lamp is started by the series loop of each relay tip, and the phase sequence pilot lamp is lighted the demonstration alarm window; When carrying out, voltage generator and measuring relay are linked together through transmission line of electricity to the separate measurement of three phase line.
3. according to claim 1ly realize it is characterized in that the method for nuclear phase function with relay tip: described relay J 1, J2, every of J3 are divided into six branch relays again,
J1 comprises J1-1, J1-2, J1-3, J1-4, J1-5, J1-6,
J2 comprises J2-1, J2-2, J2-3, J2-4, J2-5, J2-6,
J3 comprises J3-1, J3-2, J3-3, J3-4, J3-5, J3-6;
It is 50 volts that J1-1, J2-1, J3-1, its operation voltage adjust;
It is 100 volts that J1-2, J2-2, J3-2, its operation voltage adjust;
It is 150 volts that J1-3, J2-3, J3-3, its operation voltage adjust;
J1-4, J2-4, J3-4, its operation voltage adjust and are-50 volts;
J1-5, J2-5, J3-5, its operation voltage adjust and are-100 volts;
J1-6, J2-6, J3-6, its operation voltage adjust and are-150 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110407105.5A CN102495297B (en) | 2011-12-09 | 2011-12-09 | Method for realizing phase check function by relay contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110407105.5A CN102495297B (en) | 2011-12-09 | 2011-12-09 | Method for realizing phase check function by relay contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102495297A true CN102495297A (en) | 2012-06-13 |
| CN102495297B CN102495297B (en) | 2014-10-22 |
Family
ID=46187138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110407105.5A Active CN102495297B (en) | 2011-12-09 | 2011-12-09 | Method for realizing phase check function by relay contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102495297B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854405A (en) * | 2012-09-14 | 2013-01-02 | 中国一冶集团有限公司 | Safe and efficient high-voltage nuclear phasing method |
| CN104360174A (en) * | 2014-12-05 | 2015-02-18 | 国家电网公司 | Secondary automatic nuclear phase device of ring main unit |
| 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 |
| CN105676009A (en) * | 2016-03-24 | 2016-06-15 | 国网山东省电力公司济南供电公司 | Three-phase type ring network cabinet secondary phase checking device, and phase checking method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2421658Y (en) * | 1999-05-22 | 2001-02-28 | 王建雷 | Cable correcting apparatus |
| CN2702501Y (en) * | 2004-03-17 | 2005-05-25 | 戴开煌 | Three-phase AC biphase-sequence relay |
| JP2006047020A (en) * | 2004-08-02 | 2006-02-16 | Kyushu Electric Power Co Inc | Phase sequence determination method for distribution line |
| CN201066782Y (en) * | 2007-08-03 | 2008-05-28 | 张博 | An automatic correction device for three-phase AC incorrect phase |
| 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 |
-
2011
- 2011-12-09 CN CN201110407105.5A patent/CN102495297B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2421658Y (en) * | 1999-05-22 | 2001-02-28 | 王建雷 | Cable correcting apparatus |
| CN2702501Y (en) * | 2004-03-17 | 2005-05-25 | 戴开煌 | Three-phase AC biphase-sequence relay |
| JP2006047020A (en) * | 2004-08-02 | 2006-02-16 | Kyushu Electric Power Co Inc | Phase sequence determination method for distribution line |
| CN201066782Y (en) * | 2007-08-03 | 2008-05-28 | 张博 | An automatic correction device for three-phase AC incorrect phase |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 刘子瑞等: "非接触式无线高压核相器的研制", 《电网与清洁能源》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854405A (en) * | 2012-09-14 | 2013-01-02 | 中国一冶集团有限公司 | Safe and efficient high-voltage nuclear phasing method |
| CN104360174A (en) * | 2014-12-05 | 2015-02-18 | 国家电网公司 | Secondary automatic nuclear phase device of ring main unit |
| CN104360174B (en) * | 2014-12-05 | 2017-05-24 | 国家电网公司 | Secondary automatic nuclear phase device of ring main unit |
| 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 |
| CN105676009A (en) * | 2016-03-24 | 2016-06-15 | 国网山东省电力公司济南供电公司 | Three-phase type ring network cabinet secondary phase checking device, and phase checking method thereof |
| CN105676009B (en) * | 2016-03-24 | 2018-11-27 | 国网山东省电力公司济南供电公司 | A kind of secondary phasing tester of three-phase type ring network cabinet and its nuclear-phase method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102495297B (en) | 2014-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203217005U (en) | Converter transformer no-load test schematic wiring diagram | |
| CN102495297B (en) | Method for realizing phase check function by relay contact | |
| CN103308832A (en) | Partial discharge test device for high-voltage cable insulation middle joint and use method | |
| CN102193040A (en) | Method for performing insulation preventive test on zinc oxide lightning arrester without dismantling lead wire | |
| CN102087316B (en) | Online monitoring method for short-circuit impedance of V/X connection traction transformer | |
| CN108181550A (en) | A kind of exchange micro-capacitance sensor fault type judges and phase-selecting method | |
| CN202330562U (en) | Ground resistance test wire clamp | |
| CN202330571U (en) | Phasing testers realizing phasing function by utilizing relay contacts | |
| CN202676801U (en) | Wiring tester used for photovoltaic array header box | |
| CN203054118U (en) | Short-circuit protection test apparatus for IGBT power unit | |
| CN205210232U (en) | Low pressure intelligence fault detector | |
| CN205157639U (en) | Synchronous earth mat reposition of redundant personnel vector test system of application GPS | |
| CN202583830U (en) | Feasibility test system for replacement of converter transformer sleeve | |
| CN103267912B (en) | A kind of direct current transportation wall bushing risk evaluating system and methods of risk assessment | |
| CN203405482U (en) | Test wire switching device | |
| CN105490122A (en) | Screen-top miniature bus bridging-connection cable | |
| CN209673980U (en) | A kind of π type equivalent circuit network for simulating complicated distribution line | |
| CN205643107U (en) | Analogue means of earthing pole stray current to burying ground corrosion of metals | |
| CN102495298B (en) | Method for realizing line phase check by using programmable logic controller (PLC) | |
| CN209979747U (en) | Device for checking cable phase sequence under severe communication environment | |
| CN202330556U (en) | PLC (Programmable Logic Controller) phase calibrator | |
| CN104375033A (en) | Device for testing long-term operation performance of direct current cable system under extra-high voltage strong current working condition | |
| CN202563023U (en) | Multifunctional connecting wire for experiment of transformer | |
| CN205643408U (en) | On -vehicle megohmmeter, Jie decrease electrode negative, damage that is situated between is joined conversely measurement wiring and is concentrated conversion equipment | |
| CN205786713U (en) | Transformer test wiring switching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
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. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tao Yongmao Inventor after: Fu Yun Inventor after: Xia Yujue Inventor after: Wan Qing Inventor after: Li Anping Inventor before: Tao Yongmao Inventor before: Li Anping |
|
| COR | Change of bibliographic data | ||
| CP01 | Change in the name or title of a patent holder |
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 |