CN107064643A - 1000 kilovolts of GIS device major loop method for testing resistance - Google Patents
1000 kilovolts of GIS device major loop method for testing resistance Download PDFInfo
- Publication number
- CN107064643A CN107064643A CN201710039653.4A CN201710039653A CN107064643A CN 107064643 A CN107064643 A CN 107064643A CN 201710039653 A CN201710039653 A CN 201710039653A CN 107064643 A CN107064643 A CN 107064643A
- Authority
- CN
- China
- Prior art keywords
- kilovolts
- gis
- measured
- major loop
- test
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Wire phase head end is all connected to the invention discloses a kind of 1,000 kilovolts of GIS device main loop circuit method of testings, including by test device electric current injection end positive pole and the proper pole of voltage detecting；By test device voltage detecting end negative pole connecting wire phase end；In end by the metal enclosed layer short circuit of conductive phase；Test device electric current injection end negative pole is connected near the segmentation junction of wire phase head end；Obtain detection voltage and calculate resistance.This 1,000 kilovolts of GIS devices main loop circuit method of testing that the present invention is provided, the measurement of circuitous resistance is carried out as electric conductor by the metal enclosed layer that will be tested on the outside of 1,000 kilovolts of GIS device major loops, therefore the method for testing of the present invention is not influenceed by tested device length, and the test wire of a large amount of big line footpaths is reduced, it is with low cost；Method of testing line is simple, implements extremely convenient fast, and method is reliable, and test process, test request and measuring accuracy are fully able to meet Standard.
Description
Technical field
Present invention relates particularly to a kind of 1,000 kilovolts of GIS device main loop circuit method of testings.
Background technology
Major loop resistance value is a significant data of GIS device installation, maintenance and inspection of quality, and the purpose is to check electricity
Gas equipment installment quality and the integrality in loop, and find to loosen because manufacturing the machinery produced by vibration in bad or operation
The defects such as the loose contact caused etc. reason, it is to avoid cause accident because of loose contact, are to ensure equipment safety stable operation
Important means.
The structure of 1000kV GIS device major loop buses is as shown in Figure 1：Bus center is to be on the outside of wire phase 1, bus
It is SF between the metal enclosed layer in metal enclosed layer 3, center conductor and outside6Gas.Moreover, 1000kV GIS device buses are long
Degree is general all to reach two, more than 300 meters；General bus is all that segmentation is laid when laying, in the junction of section and section（I.e.
It is segmented junction 2）It is fixedly connected by devices such as screws, so that the bus of equipment reaches the length of requirement.
At present in the major loop resistance value test of 1000kV GIS device buses, with the increase of bus installation length,
Need to be continuously increased the length of p-wire（At least need more than tens meters, or even hundred meters）.Meanwhile, test electric current is risen to
300A, the sectional area of used testing current line also will accordingly increase.But, using the p-wire that length length, section are thick,
When in p-wire by 300A high current, loss when wire is powered is added, test electric current is unable to reach Standard
Numerical value, directly affects the current capacity of instrument normal work, the error of resistance test increased to a certain extent.And
Easily winding, cross-operation, testing time length, increase test in test process during p-wire unfolding and take-up can also be caused
The problems such as difficulty, increase manpower, very big inconvenience is carried out to calibration tape.
Conventional method of testing is as shown in Fig. 2 ~ Fig. 4 at present：Fig. 2 show using testing current line as through-flow conductor
Row test, but this method has the disadvantage that：Test wire length can not meet site operation requirement, after testing length increase
Electric current can not rise to the 300A of Standard；Test loop, which increases, causes power consumption to increase, and p-wire heating is serious；P-wire is unfolded
With during take-up easily wind, increase difficulty of test；Cross-operation is more in test process, testing time length, need more people
Member participates in test.
Fig. 3 show using earth-continuity loop as through-flow conductor and tested, but this method has the disadvantage that：
Grounded screen also hot work in progress during GIS device installation, there is a situation where to need test position earth mat is not connected can not turn on；
Grounded screen complex, it may appear that shunting, influences the correctness of test result；By site operation environmental disturbances, if test is same
When have electric welding etc. high current operation, on test result influence it is larger.
Fig. 4 show using adjacent and tested as through-flow conductor, but this method has the disadvantage that： 500kV
And above GIS device configures for split-phase, three-phase is not encapsulated among same shell；Mutually led using the method test wherein one
During loop resistance, another phase need to be encapsulated and opened, and constant temperature dust-proof shed is built at opening.Reach that test condition needs configuration
Sufficient amount of constant temperature dust-proof shed, especially 1000kV GIS devices are very high for requirement that is dust-proof and drying, and scene is difficult to reality
It is existing；Adjacent phase belongs to packaged equipment, and part has filled SF6 gases, and its interim opening is done into test-purpose
Words, technological process is complicated；Each phase set-up time sequencing of GIS device A, B, C is variant during site operation.In the presence of need survey
Pilot is adjacent still without the situation being installed in place.
The content of the invention
It is an object of the invention to provide a kind of with low cost, method of testing is simple and reliable, and precision meet national standard will
The 1000 kilovolts of GIS device main loop circuit method of testings asked.
This 1,000 kilovolts of GIS devices main loop circuit method of testing that the present invention is provided, comprises the following steps：
The positive pole of the electric current injection end of test device and the positive pole at voltage detecting end are connected into 1,000 kilovolts of GIS to be measured simultaneously to set
The step of wire phase head end of standby major loop bus；
The wire that the negative pole at the voltage detecting end of test device is connected into 1,000 kilovolts of GIS devices major loop bus to be measured is mutually last
The step of end；
, will be metal enclosed on the outside of the conductive phase and bus of bus in the end of 1,000 kilovolts of GIS devices major loop bus to be measured
The step of layer short circuit；
The negative pole of the electric current injection end of test device is connected to leading near 1,000 kilovolts of GIS device major loop buses to be measured
The step of segmentation junction of line phase head end；
Measurement apparatus obtains detection voltage, so that the step of calculating 1,000 kilovolts of GIS devices major loop resistance to be measured.
1,000 kilovolts of described GIS device main loop circuit method of testings also comprise the following steps：
1,000 kilovolts of GIS devices major loop resistance to be measured according to obtaining judges 1,000 kilovolts of GIS device major loops to be measured
The step of performance.
Described measurement apparatus measures 1,000 kilovolts of GIS devices major loop resistance to be measured, is specially measured using four-wire method
The resistance of 1,000 kilovolts of GIS device major loops to be measured.
This 1,000 kilovolts of GIS devices main loop circuit method of testing that the present invention is provided, by the way that 1,000 kilovolts will be tested
Metal enclosed layer on the outside of GIS device major loop carries out the measurement of circuitous resistance, therefore the survey that the present invention is provided as electric conductor
Method for testing is not influenceed by tested device length, and reduces the test wire of a large amount of big line footpaths, with low cost；This hair
Bright method of testing line is simple, implements extremely convenient fast, and method is reliable, test process, test request and measuring accuracy
It is fully able to meet Standard.
Brief description of the drawings
Fig. 1 is the structural representation of existing 1,000 kilovolts of GIS devices major loop bus.
Fig. 2 is that the use testing current line of background technology is used as the method for testing resistance of through-flow conductor.
Fig. 3 uses earth-continuity loop as the method for testing resistance of through-flow conductor for background technology.
Fig. 4 uses the adjacent method for testing resistance as through-flow conductor for background technology.
Fig. 5 is the resistance test connection diagram of the inventive method.
Embodiment
The resistance test connection diagram of the inventive method as shown in Figure 5：It can be seen that the present invention provide this 1,000
Kilovolt GIS device main loop circuit method of testing, comprises the following steps：
The positive pole of the electric current injection end of test device and the positive pole at voltage detecting end are connected into 1,000 kilovolts of GIS to be measured simultaneously to set
The step of wire phase head end of standby major loop bus；
The wire that the negative pole at the voltage detecting end of test device is connected into 1,000 kilovolts of GIS devices major loop bus to be measured is mutually last
The step of end；
, will be metal enclosed on the outside of the conductive phase and bus of bus in the end of 1,000 kilovolts of GIS devices major loop bus to be measured
The step of layer short circuit；
The negative pole of the electric current injection end of test device is connected to leading near 1,000 kilovolts of GIS device major loop buses to be measured
The step of segmentation junction of line phase head end；
Measurement apparatus obtains detection voltage, so that the step of calculating 1,000 kilovolts of GIS devices major loop resistance to be measured；
1,000 kilovolts of GIS devices major loop resistance to be measured according to obtaining judges 1,000 kilovolts of GIS device major loops to be measured
The step of performance.
Measurement apparatus measures 1,000 kilovolts of GIS devices major loop resistance to be measured and uses four-wire method measurement.
Because the loop resistance of GIS device shell to be measured is milliohm（mΩ）Rank, it is strong compared with electric current line current capacity, can
So that electric current is raised into 300A easily, the test request of national standard is easily met；And the inventive method, the negative pole of its voltage detecting line
Device housings are used, therefore are not devices under length limitation；And test connection circuit is simply clear, beneficial to test
Personnel's analysis searches problem；On-the-spot test wiring can also be simplified, cross-operation is reduced.Reduce p-wire unfolding and reclaim stream
Journey, can reduce the waste of human resources, save material（Testing current line）, economic benefit can be significantly improved.In addition, the present invention
Method of testing can also test the resistance of the cable with similar GIS device cable structure.
Claims (3)
1. a kind of 1,000 kilovolts of GIS device main loop circuit method of testings, comprise the following steps：
The positive pole of the electric current injection end of test device and the positive pole at voltage detecting end are connected into 1,000 kilovolts of GIS to be measured simultaneously to set
The step of wire phase head end of standby major loop bus；
The wire that the negative pole at the voltage detecting end of test device is connected into 1,000 kilovolts of GIS devices major loop bus to be measured is mutually last
The step of end；
, will be metal enclosed on the outside of the conductive phase and bus of bus in the end of 1,000 kilovolts of GIS devices major loop bus to be measured
The step of layer short circuit；
The negative pole of the electric current injection end of test device is connected to leading near 1,000 kilovolts of GIS device major loop buses to be measured
The step of segmentation junction of line phase head end；
Measurement apparatus obtains detection voltage, so that the step of calculating 1,000 kilovolts of GIS devices major loop resistance to be measured.
2. 1,000 kilovolts of GIS devices main loop circuit method of testing according to claim 1, it is characterised in that also including such as
Lower step：
1,000 kilovolts of GIS devices major loop resistance to be measured according to obtaining judges 1,000 kilovolts of GIS device major loops to be measured
The step of performance.
3. 1,000 kilovolts of GIS devices main loop circuit method of testing according to claim 1, its feature is in described measurement
Measurement device 1,000 kilovolts of GIS devices major loop resistance to be measured, specially measures 1,000 kilovolts of GIS devices to be measured using four-wire method
The resistance of major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039653.4A CN107064643A (en) | 2017-01-19 | 2017-01-19 | 1000 kilovolts of GIS device major loop method for testing resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039653.4A CN107064643A (en) | 2017-01-19 | 2017-01-19 | 1000 kilovolts of GIS device major loop method for testing resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107064643A true CN107064643A (en) | 2017-08-18 |
Family
ID=59598872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039653.4A Pending CN107064643A (en) | 2017-01-19 | 2017-01-19 | 1000 kilovolts of GIS device major loop method for testing resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107064643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702994A (en) * | 2019-10-21 | 2020-01-17 | 云南电力技术有限责任公司 | Novel GIS equipment conductive loop resistance testing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685114A (en) * | 2008-09-25 | 2010-03-31 | 上海宝钢设备检修有限公司 | Measurement method of GIS fully enclosed 126KV combined circuit breaker contact persistence |
| CN202141760U (en) * | 2011-03-18 | 2012-02-08 | 青海送变电工程公司 | Device for testing super-long gas insulated switchgear (GIS) main loop resistance |
| CN102798757A (en) * | 2012-08-14 | 2012-11-28 | 广东电网公司佛山供电局 | Method and system for detecting contact resistance of bus joint of GIS (Geographic Information System) |
| CN103760421A (en) * | 2013-12-30 | 2014-04-30 | 广东电网公司佛山供电局 | GIS loop resistance assessment method based on supercapacitor |
| CN103926466A (en) * | 2014-04-18 | 2014-07-16 | 武汉大学 | Electrical equipment loop resistor test system and contact state evaluation method |
| CN204719137U (en) * | 2015-06-05 | 2015-10-21 | 广东电网有限责任公司珠海供电局 | Binding clip and loop resistance proving installation |
-
2017
- 2017-01-19 CN CN201710039653.4A patent/CN107064643A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685114A (en) * | 2008-09-25 | 2010-03-31 | 上海宝钢设备检修有限公司 | Measurement method of GIS fully enclosed 126KV combined circuit breaker contact persistence |
| CN202141760U (en) * | 2011-03-18 | 2012-02-08 | 青海送变电工程公司 | Device for testing super-long gas insulated switchgear (GIS) main loop resistance |
| CN102798757A (en) * | 2012-08-14 | 2012-11-28 | 广东电网公司佛山供电局 | Method and system for detecting contact resistance of bus joint of GIS (Geographic Information System) |
| CN103760421A (en) * | 2013-12-30 | 2014-04-30 | 广东电网公司佛山供电局 | GIS loop resistance assessment method based on supercapacitor |
| CN103926466A (en) * | 2014-04-18 | 2014-07-16 | 武汉大学 | Electrical equipment loop resistor test system and contact state evaluation method |
| CN204719137U (en) * | 2015-06-05 | 2015-10-21 | 广东电网有限责任公司珠海供电局 | Binding clip and loop resistance proving installation |
Non-Patent Citations (3)
| Title |
|---|
| 周仿荣 等: "超高压GIS设备主回路电阻测量比较分析", 《云南电力技术》 * |
| 张明 等: "800kV GIS主回路电阻测试技术", 《中国电业(技术版)》 * |
| 张明 等: "日月山750kV变电站工程800kV超长GIS主回路电阻测试技术", 《青海电力》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702994A (en) * | 2019-10-21 | 2020-01-17 | 云南电力技术有限责任公司 | Novel GIS equipment conductive loop resistance testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2302335T3 (en) | CONTROL OF PARTIAL INTERNAL DOWNLOADS IN AN ELECTRIC TRANSFORMER. | |
| CN110082636B (en) | Power cable fault positioning method and system | |
| CN101459334B (en) | Electrical power system failure information obtaining method | |
| CN100592441C (en) | Electron type current transformer for ultrahigh voltage transmission lines and corona loss measurement device thereof | |
| CN104698311B (en) | A kind of DC line direct current arrester live detection method | |
| Long et al. | Online monitoring of substation grounding grid conditions using touch and step voltage sensors | |
| CN110596538B (en) | Method and system for calculating electrical parameters of power cable | |
| CN107132455B (en) | A kind of grounding net of transformer substation performance estimating method based on ground line current injection | |
| CN105759147A (en) | Integrated test device for battery management system of electric vehicle | |
| CN104635123B (en) | Device and method for measuring insulation performance of high-voltage wire harness of electric automobile | |
| CN102944745A (en) | Insulator detector for live-line operation of 750kV line | |
| CN108535576A (en) | Multichannel power quality analysis device based on 3G network | |
| CN107179467A (en) | GIL Fault Locating Methods and fault location system based on earth current | |
| CN202025054U (en) | Portable creepage current electrified detecting system for support insulator | |
| CN108871449A (en) | A kind of transmission line online monitoring system with electric field monitoring | |
| CN107884737A (en) | The live capacitive apparatus on-line monitoring check system and method for wireless high-precise synchronization | |
| CN203405561U (en) | Direct current power source grounding fault searching device | |
| CN105866648A (en) | Insulation detecting system for power transmission cables | |
| CN202886473U (en) | 750-kV insulator detector for line hot-line work | |
| CN107064643A (en) | 1000 kilovolts of GIS device major loop method for testing resistance | |
| CN207964994U (en) | Grounding net of transformer substation health status detection device | |
| CN201226292Y (en) | Electron type current transformer for ultrahigh voltage transmission line and apparatus for measuring corona loss thereof | |
| KR200169790Y1 (en) | An instrument for measuring earth resistance of concrete electric-pole | |
| CN107271775B (en) | electric power overhead line phase detection method | |
| CN104833883B (en) | A kind of earth mat method of testing based on 10 35kV short circuit groundings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |