CN106597112B - Shock ground resistance of transmission line tower test device and its method - Google Patents
Shock ground resistance of transmission line tower test device and its method Download PDFInfo
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- CN106597112B CN106597112B CN201610930973.4A CN201610930973A CN106597112B CN 106597112 B CN106597112 B CN 106597112B CN 201610930973 A CN201610930973 A CN 201610930973A CN 106597112 B CN106597112 B CN 106597112B
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- resistance
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- power line
- transmission line
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- 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
- G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
- G01R27/205—Measuring contact resistance of connections, e.g. of earth connections
Abstract
The present invention proposes a kind of shock ground resistance of transmission line tower test device comprising: resistance testing device ontology is used to measure the ground resistance of electric power line pole tower, and impulse earthed resistance is calculated according to impact coefficient；1 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple humidity detectors；0.8 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple temperature-detecting devices；It pops one's head in, is arranged on the shell of the resistance testing device ontology with multiple magnetic field detections.Shock ground resistance of transmission line tower test device structure provided by the invention is simple, at low cost, and the adjustment of adaptability can be carried out according to different environmental parameters.The present invention proposes a kind of shock ground resistance of transmission line tower test method, and different impulse earthed resistances can be calculated according to different environmental parameters, can be monitored in real time and accurately measure the impulse earthed resistance of electric power line pole tower.
Description
Technical field
The invention belongs to field of power transmission.It is more particularly related to a kind of shock ground resistance of transmission line tower
Test device and its method.
Background technique
When dash current flows through earthing or grounding means, it is assumed that earthing or grounding means above earth potential peak value flows into electricity in ground with by grounding body
The ratio of stream is impulse earthed resistance, and since impulse earthed resistance measures inaccuracy, big face is often caused due to lightning stroke
Product has a power failure and casualties, therefore the precise measurement of electric line Tower Impulse Grounding Resistance is particularly important, it is ensured that neighbouring people
The stable operation of the safety and transmission line of electricity system of member.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
In order to solve the problem above-mentioned, the present invention proposes a kind of shock ground resistance of transmission line tower test device,
Include:
Resistance testing device ontology is used to measure the ground resistance of electric power line pole tower, and is calculated according to impact coefficient
Obtain impulse earthed resistance；
1 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple humidity detectors；
0.8 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple temperature-detecting devices；
It pops one's head in, is arranged on the shell of the resistance testing device ontology with multiple magnetic field detections.
Preferably, in the shock ground resistance of transmission line tower test device, multiple humidity detector edges
The grounding body of electric power line pole tower ground connection ray steel body length direction uniform intervals setting.
Preferably, in the shock ground resistance of transmission line tower test device, multiple temperature-detecting devices are in
Circular distribution is around the grounding body, and apart from grounding body 0.5m.
Preferably, in the shock ground resistance of transmission line tower test device, each magnetic field detection probe is outer
It is provided with a seal casinghousing.
Preferably, in the shock ground resistance of transmission line tower test device, the seal casinghousing by interior and
Outside include ceramic matrix, hollow cavity and shell, is filled with molecular sieve desiccant in the hollow cavity, the shell is by setting
Aliphatic radical glass fiber compound material is made.
Preferably, in the shock ground resistance of transmission line tower test device, the seal casinghousing is rectangular
Figure hollow housing is internally provided with the accommodation space for accommodating the magnetic field detection probe.
Preferably, the shock ground resistance of transmission line tower test device further includes a controller, is used for
Receive the temperature value and the spy of multiple magnetic field detections that humidity value, the multiple temperature-detecting devices that multiple humidity detectors transmit transmit
The field strength values that head transmits, and its average value is calculated separately out, and impact coefficient, Jin Erji are obtained according to the size of average value
Calculation obtains impulse earthed resistance.
The present invention also provides a kind of shock ground resistance of transmission line tower test methods comprising following steps:
Obtain the grounding resistance of electric power line pole tower；
Current environmental parameter is obtained, and corresponding impact coefficient is transferred from database according to the environmental parameter, simultaneously
Impulse earthed resistance is calculated according to the impact coefficient and grounding resistance, wherein
Environmental parameter includes humidity value, temperature value and field strength values, and the multiple humidity detectors received are passed
The field strength values difference that the temperature value and multiple magnetic field detections probe that humidity value, the multiple temperature-detecting devices come transmits transmit
Calculate its average value.
Preferably, it in the shock ground resistance of transmission line tower test method, is stored in advance in the database
There is an environmental parameter table corresponding with impact coefficient, impact coefficient=humidity value * temperature value * field strength values * standard impulse coefficient/
Traditional humidity value/ordinary temperature value/standard Magnetic Field intensity, the traditional humidity value are 65%；The ordinary temperature value is 25 DEG C.
The present invention proposes a kind of shock ground resistance of transmission line tower test device comprising: resistance testing device sheet
Body is used to measure the ground resistance of electric power line pole tower, and impulse earthed resistance is calculated according to impact coefficient；It is multiple wet
Detection device is spent, 1 meter of below ground of the lower section of the electric power line pole tower is set；Multiple temperature-detecting devices, set
Set 0.8 meter of below ground in the lower section of the electric power line pole tower；It pops one's head in, is arranged in the resistance with multiple magnetic field detections
On the shell of test device ontology.Shock ground resistance of transmission line tower test device structure provided by the invention is simple, at
This is low, and the adjustment of adaptability can be carried out according to different environmental parameters.The present invention proposes a kind of electric power line pole tower punching
Method of Testing Earth-Contact Resistance is hit, different impulse earthed resistances can be calculated according to different environmental parameters, can be supervised in real time
Survey and accurately measure the impulse earthed resistance of electric power line pole tower.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shock ground resistance of transmission line tower test device provided by the invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
As shown in Figure 1, the present invention proposes a kind of shock ground resistance of transmission line tower test device comprising:
Resistance testing device ontology 1 is used to measure the ground resistance of electric power line pole tower, and is calculated according to impact coefficient
Obtain impulse earthed resistance；
1 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple humidity detectors 3；
0.8 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple temperature-detecting devices 2；
With multiple magnetic field detections probe 4, it is arranged on the shell of the resistance testing device ontology 1.
In the shock ground resistance of transmission line tower test device, multiple humidity detectors 3 are along power transmission line
The length direction uniform intervals setting of the ground connection ray steel body of the grounding body of line pole tower.
In the shock ground resistance of transmission line tower test device, the rounded distribution of multiple temperature-detecting devices 2
Around the grounding body, and apart from grounding body 0.5m.
In the shock ground resistance of transmission line tower test device, one is provided with outside each magnetic field detection probe 4
Seal casinghousing.
In the shock ground resistance of transmission line tower test device, the seal casinghousing includes ceramics from inside to outside
Matrix, hollow cavity and shell, the hollow cavity is interior to be filled with molecular sieve desiccant, and the shell is by resin base glass fibers
Dimension composite material is made.
In the shock ground resistance of transmission line tower test device, the seal casinghousing is cuboid-type hollow shell
Body is internally provided with the accommodation space for accommodating the magnetic field detection probe.
The present invention also provides a kind of shock ground resistance of transmission line tower test methods comprising following steps:
Obtain the grounding resistance of electric power line pole tower；
Current environmental parameter is obtained, and corresponding impact coefficient is transferred from database according to the environmental parameter, simultaneously
Impulse earthed resistance is calculated according to the impact coefficient and grounding resistance, wherein
Environmental parameter includes humidity value, temperature value and field strength values, and the multiple humidity detectors received are passed
The field strength values difference that the temperature value and multiple magnetic field detections probe that humidity value, the multiple temperature-detecting devices come transmits transmit
Calculate its average value.
In the shock ground resistance of transmission line tower test method, it is previously stored with environment ginseng in the database
Number table corresponding with impact coefficient, impact coefficient=humidity value * temperature value * field strength values * standard impulse coefficient/traditional humidity
Value/ordinary temperature value/standard Magnetic Field intensity, the traditional humidity value are 65%；The ordinary temperature value is 25 DEG C.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (2)
1. shock ground resistance of transmission line tower test device characterized by comprising
Resistance testing device ontology is used to measure the ground resistance of electric power line pole tower, and is calculated according to impact coefficient
Impulse earthed resistance；
1 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple humidity detectors；
0.8 meter of below ground of the lower section of the electric power line pole tower is arranged in multiple temperature-detecting devices；
Multiple magnetic field detection probes, are arranged on the shell of the resistance testing device ontology；
And controller, it is used to receive the temperature that humidity value, the multiple temperature-detecting devices that multiple humidity detectors transmit transmit
The field strength values that angle value and multiple magnetic field detections probe transmit, and its average value is calculated separately out, and according to the big of average value
It is small to obtain impact coefficient, and then impulse earthed resistance is calculated；
Wherein,
Multiple humidity detectors along electric power line pole tower grounding body ground connection ray steel body length direction uniform intervals
Setting；
Multiple temperature-detecting devices are rounded to be distributed in around the grounding body, and apart from grounding body 0.5m；
Each magnetic field detection probe is outer to be provided with a seal casinghousing；
The seal casinghousing includes ceramic matrix, hollow cavity and shell from inside to outside, is filled with molecule in the hollow cavity
Desiccant is sieved, the shell is made of Matrix Fiberglass Composite Explosive；
The seal casinghousing is cuboid-type hollow housing, is internally provided with the accommodation space for accommodating the magnetic field detection probe.
2. the test method of shock ground resistance of transmission line tower test device as described in claim 1, which is characterized in that packet
Include following steps:
It is previously stored with environmental parameter table corresponding with impact coefficient, impact coefficient=humidity value * temperature value * magnetic in the database
Field intensity value * standard impulse coefficient/traditional humidity value/ordinary temperature value/standard Magnetic Field intensity, the traditional humidity value are
65%；The ordinary temperature value is 25 DEG C；
Obtain the grounding resistance of electric power line pole tower；
Current environmental parameter is obtained, and corresponding impact coefficient, while basis are transferred from database according to the environmental parameter
Impulse earthed resistance is calculated in the impact coefficient and grounding resistance, wherein
Environmental parameter includes humidity value, temperature value and field strength values, and the multiple humidity detectors received are transmitted
The field strength values that the temperature value and multiple magnetic field detections probe that humidity value, multiple temperature-detecting devices transmit transmit calculate separately
Its average value out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610930973.4A CN106597112B (en) | 2016-10-31 | 2016-10-31 | Shock ground resistance of transmission line tower test device and its method |
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| CN201610930973.4A CN106597112B (en) | 2016-10-31 | 2016-10-31 | Shock ground resistance of transmission line tower test device and its method |
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| CN106597112A CN106597112A (en) | 2017-04-26 |
| CN106597112B true CN106597112B (en) | 2019-04-02 |
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| CN201610930973.4A Active CN106597112B (en) | 2016-10-31 | 2016-10-31 | Shock ground resistance of transmission line tower test device and its method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108646095A (en) * | 2018-05-10 | 2018-10-12 | 杭州顿恒科技有限公司 | A kind of ground resistance remote online monitoring system and monitoring method |
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| CN101615497A (en) * | 2009-05-20 | 2009-12-30 | 北京华电云通电力技术有限公司 | The integral connecting structure of transformer and current sensor |
| CN101650389A (en) * | 2009-08-11 | 2010-02-17 | 国网电力科学研究院武汉南瑞有限责任公司 | Method and instrument for measuring shock ground resistance of transmission line tower |
| CN102928673A (en) * | 2012-10-25 | 2013-02-13 | 清华大学 | Method for acquiring impulse grounding resistance |
| CN103647270A (en) * | 2013-12-13 | 2014-03-19 | 国家电网公司 | +/-800 kV extra high voltage DC line grounding arrangement method and system |
| CN103792433A (en) * | 2014-02-21 | 2014-05-14 | 国家电网公司 | Measuring method using spark coefficient for correcting low-amplitude value impact resistance of tower grounding device |
| CN104569608A (en) * | 2014-12-12 | 2015-04-29 | 国家电网公司 | Method for measuring impact grounding impedance on site based on large impact current |
| CN104749443A (en) * | 2013-12-31 | 2015-07-01 | 孙巍巍 | Measuring device for grounding resistance |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100734821B1 (en) * | 2005-10-31 | 2007-07-03 | 한국전력공사 | Measurement Method of Grounding Resistance of Transmission Towers in an Energized Transmission Line System |
| JP2009209351A (en) * | 2008-02-05 | 2009-09-17 | Toray Ind Inc | Biaxially oriented film |
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2016
- 2016-10-31 CN CN201610930973.4A patent/CN106597112B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615497A (en) * | 2009-05-20 | 2009-12-30 | 北京华电云通电力技术有限公司 | The integral connecting structure of transformer and current sensor |
| CN101650389A (en) * | 2009-08-11 | 2010-02-17 | 国网电力科学研究院武汉南瑞有限责任公司 | Method and instrument for measuring shock ground resistance of transmission line tower |
| CN102928673A (en) * | 2012-10-25 | 2013-02-13 | 清华大学 | Method for acquiring impulse grounding resistance |
| CN103647270A (en) * | 2013-12-13 | 2014-03-19 | 国家电网公司 | +/-800 kV extra high voltage DC line grounding arrangement method and system |
| CN104749443A (en) * | 2013-12-31 | 2015-07-01 | 孙巍巍 | Measuring device for grounding resistance |
| CN103792433A (en) * | 2014-02-21 | 2014-05-14 | 国家电网公司 | Measuring method using spark coefficient for correcting low-amplitude value impact resistance of tower grounding device |
| CN104569608A (en) * | 2014-12-12 | 2015-04-29 | 国家电网公司 | Method for measuring impact grounding impedance on site based on large impact current |
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Effective date of registration: 20190215 Address after: Room A-B102-785, 198 Kaidi Road, Xiaoshan Economic and Technological Development Zone, Hangzhou, Zhejiang Province, 311200 Applicant after: Hangzhou Xiao Nan science and Technology Co Ltd Address before: No. 160 Jinji Road, Lianzhou Town, Hepu County, Beihai City, Guangxi Zhuang Autonomous Region Applicant before: Luo Yunfeng |
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Effective date of registration: 20191217 Address after: 510220, victory Street, No. 38 Jiangnan Road, Guangzhou, Guangdong, Haizhuqu District Patentee after: Guangzhou Power Engineering Design Institute Co., Ltd. Address before: Room A-B102-785, 198 Kaidi Road, Xiaoshan Economic and Technological Development Zone, Hangzhou, Zhejiang Province, 311200 Patentee before: Hangzhou Xiao Nan science and Technology Co Ltd |