CN103616544A - Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension power transmission line - Google Patents
Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension power transmission line Download PDFInfo
- Publication number
- CN103616544A CN103616544A CN201310593496.3A CN201310593496A CN103616544A CN 103616544 A CN103616544 A CN 103616544A CN 201310593496 A CN201310593496 A CN 201310593496A CN 103616544 A CN103616544 A CN 103616544A
- Authority
- CN
- China
- Prior art keywords
- contactor
- sequence parameter
- phase
- measurement
- control device
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 title claims abstract description 13
- 238000002955 isolation Methods 0.000 claims description 12
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 3
- 240000002853 Nelumbo nucifera Species 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 30
- 230000003993 interaction Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses an intelligent control device for measurement of the positive-sequence parameter and the zero-sequence parameter of a high-tension power transmission line. The intelligent control device solves the problems that with an existing measurement mode, all measurement meters are connected complexly, measurement wiring and instrument wiring need to be changed when different parameters are measured, and measurement tests are tedious. The intelligent control device comprises a CPU module, a control signal optocoupler isolating circuit, a relay driving circuit, a contactor control circuit and a human-computer interaction system. The contactor control circuit is connected with the secondary side of a three-phase transformer, two phases of the three-phase transformer are connected with two contactor sets in series connection respectively, the other phase of the three-phase transformer is output and connected with a load after being connected with one contactor, the midpoint of the secondary side of the three-phase transformer is grounded through one contactor. When the intelligent control device is used, different test power output signals can be output to the load just by changing the on-off state of all the contactors, and the positive-sequence parameter and the zero-sequence parameter can be measured. Measurement operation is greatly simplified, working efficiency is improved, and on-site tests can be carried out quite conveniently.
Description
Technical field
The present invention relates to the positive order parameter of a kind of ultra-high-tension power transmission line, zero sequence parameter measurement intelligent controlling device, belong to power supply technical field of measurement and test.
Background technology
At present in engineering, measure the positive order parameter of ultra-high-tension power transmission line, Zero sequence parameter is used trichotomy conventionally, while measuring positive order parameter, need apply three-phase supply, measures voltage, electric current and the power signal of three-phase; While measuring Zero sequence parameter, single phase poaer supply be need apply, single-phase voltage, electric current and power signal measured.Owing to there is no desirable testing tool, while therefore testing, need to use powerful three-phase transformer, pressure regulator, on test line, apply after power-frequency voltage, by discrete meter meters such as reometer, voltage table, power meters, by reading, respectively show scale and try to achieve each parameter value after corresponding computing.The volume and weight of testing tool is larger, and especially the connection between each table meter is complicated, need change and measure wiring and instrument wiring while measuring different parameters, and testing experiment is loaded down with trivial details.
Summary of the invention
The present invention relates to the positive order parameter of a kind of ultra-high-tension power transmission line, zero sequence parameter measurement intelligent controlling device, solved between each meter meter of existing metering system, connect complicated, while measuring different parameters, need change wiring and instrument wiring, the problem that testing experiment is loaded down with trivial details measured.
The positive order parameter of a kind of ultra-high-tension power transmission line, zero sequence parameter measurement intelligent controlling device, comprise CPU module, control signal light lotus root buffer circuit, relay control circuit and man-machine interactive system, the secondary A of three-phase isolation transformer holds mutually with one end of the first contactor J1 and is connected, the A phase of the tested electrical network of another termination of J1; The secondary B of three-phase isolation transformer holds mutually successively and is connected with the B of tested electrical network with the second contactor J2 by the 4th contactor J4 connecting, the secondary C of three-phase isolation transformer holds mutually successively and is connected with the C of tested electrical network with the 3rd contactor J3 by the 5th contactor J5 connecting, and the neutral point of transformer is connected with ground by the 6th contactor; Inverter A phase output terminal holds input to be connected with the former limit A of three-phase isolation transformer mutually, and inverter B phase output terminal holds input to be connected with the former limit B of three-phase isolation transformer mutually, and inverter C phase output terminal holds input to be connected with the former limit C of three-phase isolation transformer mutually.
The 5th contactor J5 of described series connection all has the normally opened contact of a contactor and the A of tested electrical network to be connected mutually with the 3rd contactor J3 with the 4th contactor J4 and the second contactor J2.
The present invention relates to a kind of contactor control loop, thereby by the different conditions of control contactor, make the test of the positive order parameter of ultra-high-tension power transmission line and Zero sequence parameter can change by the mode of automatic control the tie lines relation of test line, without change again the wiring relation of test line by manual mode.
In order to reach above object, high-voltage transmission line parameter detector of the present invention comprises CPU module, control signal light lotus root buffer circuit, relay drive circuit, contactor control loop and man-machine interactive system.Described contactor control loop connects the secondary of three-phase transformer, and after wherein two-phase connects respectively two series contactors, another contactor that joins, output connects load, and the mid point of described three-phase transformer secondary is through a contactor ground connection.
Like this, as long as required, change the on off operating mode of each contactor, can change the mode of connection of load, form required test loop, to load, export different testing power supply output signals, thereby complete the three-phase voltage while measuring positive order parameter, electric current and power test, and the single-phase voltage while measuring Zero sequence parameter, the test of the various desired parameters such as electric current and power test, also form use single phase poaer supply and measured the needed measuring circuit of triphase parameter, can use single plane method to calculate needed triphase parameter by order impedance matrix, do not need manually to change the wiring relation of test line completely, greatly simplified test operation, improved work efficiency, and contribute to reduce volume and the weight of instrument, for site test brings great convenience.
During use test instrument, by the test lead external load of contactor control loop, by the menu of liquid crystal screen display, by knob, selected to confirm to measure operation, instrument is controlled the mode of connection of tested loaded line automatically.
Accompanying drawing explanation
Fig. 1 is contactor control loop schematic diagram.
Embodiment
Shown in contactor control loop schematic diagram 1, the mid point of three-phase transformer secondary is through normally opened relay J6 ground connection, the A of secondary meets test output terminal A after normally closed relay, and the B of secondary, C two-phase meet another two test output terminal B and C through normally closed relay J2, J4 and J3, the J5 of series connection respectively.And the normally opened contact of J4, J5 two relays is connected with A.
During use test instrument, by relay control circuit, three-phase supply be can apply, positive sequence impedance and zero sequence impedance measured.Concrete steering logic is as follows:
| Test event | J1 | J2 | J3 | J4 | J5 | J6 |
| Positive sequence impedance | Open | Open | Open | Open | Open | Open |
| Zero sequence impedance | Open | Open | Open | Close | Close | Close |
In a word, the present invention, by adopting intelligent control technology to realize intelligent control function, selects according to tester, can carry out the isoparametric measurement of positive sequence impedance, zero sequence impedance of ultra-high-tension power transmission line.Compared with prior art, when carrying out various parameter measurement, only need instrument to be correctly connected with test line, without the mode of connection that changes tested this side of transmission line of electricity, therefore greatly simplified test operation, improved test job efficiency.
Claims (2)
1. the positive order parameter of ultra-high-tension power transmission line, zero sequence parameter measurement intelligent controlling device, comprise CPU module, control signal light lotus root buffer circuit, relay control circuit and man-machine interactive system, it is characterized in that, the secondary A of three-phase isolation transformer holds mutually with one end of the first contactor J1 and is connected, the A phase of the tested electrical network of another termination of J1; The secondary B of three-phase isolation transformer holds mutually successively and is connected with the B of tested electrical network with the second contactor J2 by the 4th contactor J4 connecting, the secondary C of three-phase isolation transformer holds mutually successively and is connected with the C of tested electrical network with the 3rd contactor J3 by the 5th contactor J5 connecting, and the neutral point of transformer is connected with ground by the 6th contactor; Inverter A phase output terminal holds input to be connected with the former limit A of three-phase isolation transformer mutually, and inverter B phase output terminal holds input to be connected with the former limit B of three-phase isolation transformer mutually, and inverter C phase output terminal holds input to be connected with the former limit C of three-phase isolation transformer mutually.
2. the positive order parameter of ultra-high-tension power transmission line, zero sequence parameter measurement intelligent controlling device according to claim 2, is characterized in that: the 5th contactor J5 of described series connection all has the normally opened contact of a contactor and the A of tested electrical network to be connected mutually with the 3rd contactor J3 with the 4th contactor J4 and the second contactor J2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593496.3A CN103616544A (en) | 2013-11-23 | 2013-11-23 | Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593496.3A CN103616544A (en) | 2013-11-23 | 2013-11-23 | Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103616544A true CN103616544A (en) | 2014-03-05 |
Family
ID=50167249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310593496.3A Pending CN103616544A (en) | 2013-11-23 | 2013-11-23 | Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103616544A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546836A (en) * | 2015-09-18 | 2017-03-29 | 山东天庆电力设备有限公司 | A kind of mixing console for Electrical Power Line Parameter test |
| CN106980070A (en) * | 2017-05-12 | 2017-07-25 | 国网天津市电力公司 | The measuring system and method for a kind of transmission line parameter |
| CN109342878A (en) * | 2018-09-14 | 2019-02-15 | 国网山西省电力公司晋城供电公司 | A kind of Electrical Power Line Parameter detection auxiliary system based on Internet of Things |
| CN116505524A (en) * | 2023-06-29 | 2023-07-28 | 深圳市高斯宝电气技术有限公司 | Power grid electricity taking topology of household storage inverter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327509Y (en) * | 2008-12-19 | 2009-10-14 | 河南电力试验研究院 | High-voltage transmission line parameter measuring device and system thereof |
| CN101699301A (en) * | 2009-10-29 | 2010-04-28 | 江苏省电力试验研究院有限公司 | Method for measuring line parameter through induced electricity |
| CN201965178U (en) * | 2010-12-29 | 2011-09-07 | 长沙金艺电子科技有限公司 | Parameter tester for pilot frequency line |
| CN102590627A (en) * | 2012-04-01 | 2012-07-18 | 甘肃省电力公司电力科学研究院 | Test instrument for high-voltage power transmission line |
| CN202649376U (en) * | 2012-03-28 | 2013-01-02 | 余杭供电局 | Multifunctional voltage transformation wiring checking device |
| CN203587660U (en) * | 2013-11-23 | 2014-05-07 | 国家电网公司 | High voltage transmission line positive sequence parameter and zero sequence parameter measuring intelligent control device |
-
2013
- 2013-11-23 CN CN201310593496.3A patent/CN103616544A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327509Y (en) * | 2008-12-19 | 2009-10-14 | 河南电力试验研究院 | High-voltage transmission line parameter measuring device and system thereof |
| CN101699301A (en) * | 2009-10-29 | 2010-04-28 | 江苏省电力试验研究院有限公司 | Method for measuring line parameter through induced electricity |
| CN201965178U (en) * | 2010-12-29 | 2011-09-07 | 长沙金艺电子科技有限公司 | Parameter tester for pilot frequency line |
| CN202649376U (en) * | 2012-03-28 | 2013-01-02 | 余杭供电局 | Multifunctional voltage transformation wiring checking device |
| CN102590627A (en) * | 2012-04-01 | 2012-07-18 | 甘肃省电力公司电力科学研究院 | Test instrument for high-voltage power transmission line |
| CN203587660U (en) * | 2013-11-23 | 2014-05-07 | 国家电网公司 | High voltage transmission line positive sequence parameter and zero sequence parameter measuring intelligent control device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546836A (en) * | 2015-09-18 | 2017-03-29 | 山东天庆电力设备有限公司 | A kind of mixing console for Electrical Power Line Parameter test |
| CN106980070A (en) * | 2017-05-12 | 2017-07-25 | 国网天津市电力公司 | The measuring system and method for a kind of transmission line parameter |
| CN109342878A (en) * | 2018-09-14 | 2019-02-15 | 国网山西省电力公司晋城供电公司 | A kind of Electrical Power Line Parameter detection auxiliary system based on Internet of Things |
| CN116505524A (en) * | 2023-06-29 | 2023-07-28 | 深圳市高斯宝电气技术有限公司 | Power grid electricity taking topology of household storage inverter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106772208B (en) | Single three-phase meter integrated reliability test board | |
| CN103616544A (en) | Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension power transmission line | |
| CN103884933A (en) | Temperature rise test method for large transformer | |
| CN203479934U (en) | Vehicle-mounted integrated testing system for transformer | |
| CN104793101A (en) | Transient travelling wave small-current grounding line selection device and test method thereof | |
| CN204101671U (en) | A kind of Novel multi-core cable tester | |
| CN102788902B (en) | High-voltage transmission line power frequency parameter actual measuring device capable of resisting against high-induced voltage interference | |
| CN2932394Y (en) | Metering device with a wide current measuring range | |
| CN204044268U (en) | A kind of city rail current transformer general low-voltage Auto-Test System | |
| CN106405403B (en) | Intelligent testing equipment for function test of charge control circuit breaker | |
| CN106483397A (en) | A kind of electric energy quality detection device of high accuracy high bandwidth and measuring method | |
| CN103630729A (en) | One-step wiring device and method for testing 1000kV lightning arrester reference voltage and leakage current | |
| CN203587660U (en) | High voltage transmission line positive sequence parameter and zero sequence parameter measuring intelligent control device | |
| CN202563014U (en) | Transformer loss measurement control console | |
| CN103954869B (en) | Cable power frequency parameter testing device based on PXI system | |
| CN204316171U (en) | A kind of debugging operations platform of automatic change-over controller | |
| CN110703177A (en) | Integrated test device and method for electrical performance test of voltage transformer for distribution network | |
| CN204065240U (en) | A kind of dry reactor performance test circuit and device | |
| CN206387901U (en) | CVT error in dipping anomaly assessment systems based on capacitive earth current | |
| CN203894346U (en) | Cable power frequency parameter testing apparatus | |
| CN209471149U (en) | A kind of auxiliary connection device of high-voltage inverter test macro | |
| Man et al. | Research on simulation ideas of relay protection device on load test based on virtual reality technology | |
| CN205679719U (en) | A kind of intelligent cable nuclear phase instrument of band communication function | |
| CN104345218A (en) | Reactance value measurement system and method for three-phase reactor | |
| CN103630763A (en) | Alternating-current power supply three-phase unbalanced drop simulator and simulation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |