CN106597230B - A method of measurement high-voltage conducting wires and conductor creeping discharge distance - Google Patents
A method of measurement high-voltage conducting wires and conductor creeping discharge distance Download PDFInfo
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- CN106597230B CN106597230B CN201611023240.9A CN201611023240A CN106597230B CN 106597230 B CN106597230 B CN 106597230B CN 201611023240 A CN201611023240 A CN 201611023240A CN 106597230 B CN106597230 B CN 106597230B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a kind of device and methods for measuring high-voltage conducting wires and conductor creeping discharge distance, the support frame and fixed pulley being placed in parallel including two, two toughened glass insulator strings are separately fixed at the center of two support frames, and steel-cored aluminium strand is fixed in two toughened glass insulator string end steel feets；The fixed pulley is made of a supports insulative bar, a fixed pulley and drawstring, the supports insulative bar is across between two support frames, fixed pulley is fixed on supports insulative bar, drawstring is wrapped on fixed pulley, one end is connect with vertical insulating bar, the other end leans against the edge of workbench, and the conductor to be measured is fixed on vertical insulating bar.This method is safe and reliable, simple and easy, can be widely applied to the creeping discharge distance between measurement live wire and various conductors, improves the accuracy of measurement, is more convenient for applying and popularization.
Description
Technical field
The present invention relates to ultra-high-tension power transmission line fields, and in particular to a kind of measurement high-voltage conducting wires and conductor creeping discharge distance
Device and method.
Background technique
Ultra-high-tension power transmission line is the artery of electric system, and the development for being directly related to national economy and the people are just
Often life, therefore it is safely operated the attention increasingly by departments at different levels.
Overhead transmission line will not only bear the internal pressure of intrinsic mechanical load and electric load, but also also suffer nature ring
The various external aggressions in border certainly will make overhead transmission line various problems occur with accumulating over a long period for time.Therefore, electrical equipment
It needs often to test in longtime running, inspection and maintenance.According to existing technology, we can use intelligentized rotary wind type
The livewire work of electric power unmanned plane replaces manual work, can pass in and out aerial condutor charging zone safely and carries out equipotential work
Industry reduces security risk, saves manpower, reduces maintenance cost, improves the efficiency of entire livewire work.And how to guarantee electric power without
Man-machine disengaging aerial condutor charging zone be not damaged during equipotential live line work, is that entire electric power unmanned plane electrification is made
A particularly important step during industry.
It avoids occurring along face with conducting wire when this method can be used to measure a kind of rotor wing unmanned aerial vehicle progress online livewire work
The shortest distance that electric discharge should be kept.When unmanned plane measuring device touches conducting wire, unmanned plane body can regard a shape as and not advise
Conductor then is full of air around body, conducting wire and measuring probe, and creeping discharge occur along two kinds of dielectric interfaces, pass through
The two poles of the earth are worn, entire air gap surface breakdown is made, electric arc occurs and issues the discharging sound of whip.Creeping discharge is that a kind of gas discharge is existing
As breakdown voltage when edge flashing voltage is than gas or solid individualism is all low.
If conductor is unmanned plane, certain damage can be caused to the instrument of UAV flight.It therefore, if can be relatively accurately
The creeping discharge distance of conductive surface and aerial condutor is measured, then the method that can propose to avoid that creeping discharge occurs accordingly subtracts
Few instrument damage improves unmanned plane live-working safety, and this is measured to the side of high-voltage conducting wires and conductor creeping discharge distance
Method is generalized to measurement high-voltage conducting wires and a variety of materials, the creeping discharge distance of conductor of various shapes.
Summary of the invention
Easily occur to put along face when contacting between conductor and high-voltage conducting wires by another conductor in the prior art to overcome
Electricity and the problem of be easy to cause equipment damage, the present invention provides a kind of device for measuring high-voltage conducting wires and conductor creeping discharge distance
And method.
The present invention adopts the following technical scheme:
It is a kind of measure high-voltage conducting wires and conductor creeping discharge distance device, the support frame being placed in parallel including two and calmly
Pulley gear, two toughened glass insulator strings are separately fixed at the center of two support frames, and steel-cored aluminium strand is fixed on two
In the steel feet of toughened glass insulator string end；
The fixed pulley is made of a supports insulative bar, a fixed pulley and drawstring, and the supports insulative bar is horizontal
Across between two support frames, fixed pulley is fixed on supports insulative bar, and drawstring is wrapped on fixed pulley, one end and vertical insulation
Bar connection, the other end lean against the edge of workbench, and the conductor to be measured is fixed on vertical insulating bar.
The workbench side indicates vertical scale or vertical direction posts graduated scale, twists for adjusting conductor and steel-core-aluminium
The distance between line.
The fixed pulley is fixed on the central location of supports insulative bar.
It further include transformer, the steel-cored aluminium strand is connect with transformer.
A method of measurement high-voltage conducting wires and conductor creeping discharge distance include the following steps:
S1 survey crew pulls drawstring in the graduated side of workbench mark, contacts conductor top with steel-cored aluminium strand,
Drawstring is leaned against on the scale of workbench simultaneously, reads scale value and record corresponding to the label on drawstring；
S2 control drawstring makes metallic conductor decline 20CM, opens transformer and is transferred to the voltage being added on steel-cored aluminium strand
40KV；
S3 pulls drawstring to rise to conductor slowly and steel-cored aluminium strand generation creeping discharge, adjustment conductor position to generation
The maximum distance apart of stable discharging, drawstring is leaned against on the scale of workbench, reads quarter corresponding to the label on drawstring at this time
Angle value simultaneously records, and then controlling drawstring makes conductor slowly decline about 20CM；
S4 repeats the operation in S3 using 5KV as gradient, until voltage is upgraded to 80KV, then since voltage 80KV, with
5KV is gradient, repeats the operation in S3, until voltage is reduced to 40KV, data all after record, close transformer, and right
Support frame, steel-cored aluminium strand, conductor, insulating bar carry out discharge treatment；
S5 corresponding scale when contacting the corresponding scale value of recorded each voltage and conductor top with steel-cored aluminium strand
It is poor that value is made, and creeping discharge distance corresponding to each voltage can be obtained, finally carry out data processing, obtain high-voltage conducting wires and lead
The creeping discharge distance of body.
Whole process guarantees that vertical insulating bar and conducting wire keep certain distance, avoids that creeping discharge occurs.
Beneficial effects of the present invention:
Method proposed by the present invention solves how safe, simple and more accurately measures high-voltage conducting wires and conductor edge
This problem of face arcing distance, by the easy device built, the conversion cleverly measured avoids direct measurement
Distance at electrion, people and experimental facilities are in safety zone when measurement, will not damage to people and experimental facilities,
And realize the degree of precision measurement of creeping discharge distance.The method of the present invention is safe and reliable, simple and easy, can be widely applied to
The creeping discharge distance between live wire and various conductors is measured, the accuracy of measurement is improved, is more convenient for applying and popularization.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the overlooking structure diagram of Fig. 1；
Fig. 3 is the positive structure diagram of Fig. 1；
Fig. 4 is the left view structural representation of Fig. 1.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
As Figure 1-Figure 4, a kind of device measuring high-voltage conducting wires and conductor creeping discharge distance, including two put in parallel
The support frame and fixed pulley set, two toughened glass insulator strings are separately fixed at the center of two support frames 6, steel-core-aluminium
Twisted wire 10 is fixed in two toughened glass insulator strings, 7 end steel feet.
The fixed pulley is made of 4, fixed pulleys 5 of a supports insulative bar and drawstring 3, and fixed pulley 5 is fixed on
The center of supports insulative bar 4, fixed pulley are fixed on the position in closely support frame center, its significance lies in that on vertical insulating bar surface
Creeping discharge adjustable discharge position simultaneously occurs, this position can be adjusted according to the discharge position for the metallic conductor of being measured
It is whole.The drawstring is connect across fixed pulley, one end with vertical insulating bar, and the other end leans against the edge of workbench 1, and drawstring leans on
There is a label in one end of the edge of workbench, fixed pulley is fixed on the center of supports insulative bar, entire fixed pulley
Across two support frames, and make supports insulative bar and steel-cored aluminium strand not on the same perpendicular.
The vertical insulating bar 8 is used for fixed conductor 9, while ensuring that conductor and aerial high-voltage wire installation, fixed pulley fill
Insulating properties between setting ensures that vertical insulating bar top is not contacted with fixed pulley when measuring arcing distance, it is perpendicular to ensure to be fixed on
Conductor on straight insulating bar can be controlled by drawstring contact with steel-cored aluminium strand, ensure to be fixed on conductor energy on vertical insulating bar
Pass through drawstring control and steel-cored aluminium strand distance 20CM or so.
The conductor is fixed on vertical insulating bar, and fixed position is determined according to vertical insulation pole length.The conductor can
For the electric conductor of arbitrary shape, creeping discharge can occur with high-voltage conducting wires.
The workbench side indicates vertical scale or posts graduated scale 2 in vertical direction, when determining conductor and steel-core-aluminium
After initial scale corresponding to label when twisted wire contacts on drawstring, the distance between conductor and steel-cored aluminium strand are adjusted to most
Big arcing distance reads scale corresponding to the label on drawstring at this time, and the difference for calculating two calibration datas of gained can obtain steel
The arcing distance of core aluminum stranded wire and conductor.
A method of measurement high-voltage conducting wires and conductor creeping discharge distance include the following steps:
S1 survey crew pulls drawstring in the graduated side of workbench mark, contacts conductor top with steel-cored aluminium strand,
Drawstring is leaned against on the scale of workbench simultaneously, reads scale value and record corresponding to the label on drawstring；
S2 control drawstring makes metallic conductor decline 20CM, opens transformer and is transferred to the voltage being added on steel-cored aluminium strand
40KV；
S3 pulls drawstring to rise to conductor slowly and steel-cored aluminium strand generation creeping discharge, adjustment conductor position to generation
The maximum distance apart of stable discharging, drawstring is leaned against on the scale of workbench, reads quarter corresponding to the label on drawstring at this time
Angle value simultaneously records, and then controlling drawstring makes conductor slowly decline about 20CM；
S4 repeats the operation in S3 using 5KV as gradient, until voltage is upgraded to 80KV, then since voltage 80KV, with
5KV is gradient, repeats the operation in S3, until voltage is reduced to 40KV, data all after record, close transformer, and right
Support frame, steel-cored aluminium strand, conductor, insulating bar carry out discharge treatment；
S5 corresponding scale when contacting the corresponding scale value of recorded each voltage and conductor top with steel-cored aluminium strand
It is poor that value is made, and creeping discharge distance corresponding to each voltage can be obtained, finally carry out data processing, obtain high-voltage conducting wires and lead
The creeping discharge distance of body.
The conductor can be any materials, the electric conductor of arbitrary shape, creeping discharge can occur with high-voltage conducting wires.
Whole process guarantees vertical insulating bar and conducting wire closely, guarantees that creeping discharge occurs, and avoids that induction discharge occurs.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (5)
1. a kind of method for measuring high-voltage conducting wires and conductor creeping discharge distance, the support frame being placed in parallel including two and determines cunning
Wheel apparatus, two toughened glass insulator strings are separately fixed at the center of two support frames, and steel-cored aluminium strand is fixed on two steel
Change in the steel feet of glass insulator strings end；
The fixed pulley is made of a supports insulative bar, a fixed pulley and drawstring, the supports insulative bar across
Between two support frames, fixed pulley is fixed on supports insulative bar, and the closely position in support frame center, and drawstring, which is wrapped in, determines cunning
On wheel, one end is connect with vertical insulating bar, and the other end leans against the edge of workbench, and conductor to be measured is fixed on vertical insulating bar
On；
It is characterized by comprising the following steps:
S1 survey crew pulls drawstring in the graduated side of workbench mark, contacts conductor top with steel-cored aluminium strand, simultaneously
Drawstring is leaned against on the scale of workbench, scale value and record corresponding to the label on drawstring are read；
S2 control drawstring makes metallic conductor decline 20CM, opens transformer and is transferred to the voltage being added on steel-cored aluminium strand
40KV；
S3 pulls drawstring to rise to conductor slowly creeping discharge occurs with steel-cored aluminium strand, and adjustment conductor position is to stablizing
The maximum distance apart of electric discharge, drawstring is leaned against on the scale of workbench, reads scale value corresponding to the label on drawstring at this time
And record, then controlling drawstring makes conductor slowly decline about 20CM；
S4 repeats the operation in S3 using 5KV as gradient, until voltage is upgraded to 80KV, then since voltage 80KV, is with 5KV
Gradient repeats the operation in S3, until voltage is reduced to 40KV, data all after record, close transformer, and to support
Frame, steel-cored aluminium strand, conductor, insulating bar carry out discharge treatment；
S5 when the corresponding scale value of recorded each voltage and conductor top are contacted with steel-cored aluminium strand corresponding scale value make
Difference can be obtained creeping discharge distance corresponding to each voltage, finally carry out data processing, obtain high-voltage conducting wires and conductor
Creeping discharge distance.
2. being protected the method according to claim 1, wherein whole process guarantees vertical insulating bar and conducting wire closely
Creeping discharge occurs for card, avoids that induction discharge occurs.
3. the method according to claim 1, wherein the workbench side indicates vertical scale or vertical direction
Graduated scale is posted, for adjusting the distance between conductor and steel-cored aluminium strand.
4. the method according to claim 1, wherein the fixed pulley is fixed on the central position of supports insulative bar
It sets.
5. the method according to claim 1, wherein further include transformer, the steel-cored aluminium strand and transformer
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023240.9A CN106597230B (en) | 2016-11-21 | 2016-11-21 | A method of measurement high-voltage conducting wires and conductor creeping discharge distance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023240.9A CN106597230B (en) | 2016-11-21 | 2016-11-21 | A method of measurement high-voltage conducting wires and conductor creeping discharge distance |
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| Publication Number | Publication Date |
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| CN106597230A CN106597230A (en) | 2017-04-26 |
| CN106597230B true CN106597230B (en) | 2019-08-20 |
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| CN107179485A (en) * | 2017-05-22 | 2017-09-19 | 中国电力科学研究院 | A kind of unmanned plane polling transmission line operation phase ground safe distance test method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315069A (en) * | 1999-05-25 | 2001-09-26 | 九州电力株式会社 | Creeping discharge lightning arrester |
| CN102162830A (en) * | 2011-04-02 | 2011-08-24 | 中国南方电网有限责任公司超高压输电公司梧州局 | Experimental device for simulating high-voltage transmission line flashover discharge caused by forest fire |
| CN104391233A (en) * | 2014-11-21 | 2015-03-04 | 华北电力大学（保定） | Air gap breakdown testing bench and method |
-
2016
- 2016-11-21 CN CN201611023240.9A patent/CN106597230B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315069A (en) * | 1999-05-25 | 2001-09-26 | 九州电力株式会社 | Creeping discharge lightning arrester |
| CN102162830A (en) * | 2011-04-02 | 2011-08-24 | 中国南方电网有限责任公司超高压输电公司梧州局 | Experimental device for simulating high-voltage transmission line flashover discharge caused by forest fire |
| CN104391233A (en) * | 2014-11-21 | 2015-03-04 | 华北电力大学（保定） | Air gap breakdown testing bench and method |
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