CN109406380A - The detection method and device of insulator contamination accumulation characteristics under haze environment - Google Patents

Abstract

The invention discloses the detection methods and device of insulator contamination accumulation characteristics under a kind of haze environment.This method comprises: detecting the information of the first haze substance of the insulator surface contamination of power grid under the conditions of first environment；The second haze substance is determined according to the information of the first haze substance, wherein the second haze substance is for simulating the first haze substance；Under the conditions of second environment, first object haze environment is established in target container by the second haze substance, and under first object haze environment, contamination processing is carried out to insulator, obtain the target contamination data of insulator surface, wherein second environment condition is determined by first environment condition；Target contamination data are handled, to determine the contamination accumulation characteristics of insulator.Through the invention, achieve the effect that improve the accuracy for detecting insulator contamination accumulation characteristics under haze environment.

Description

The detection method and device of insulator contamination accumulation characteristics under haze environment

Technical field

The present invention relates to data processing fields, in particular to a kind of inspection of insulator contamination accumulation characteristics under haze environment Survey method and apparatus.

Background technique

Currently, the haze weather of duration frequently occurs with the quickening of urbanization and process of industrialization.Haze at To influence one of atmospheric environment and the diastrous weather of electric system external insulation.

The research of the insulation performance of insulator about haze weather mainly has nature haze contamination method.Natural haze contamination Method can observe the ingredient and its member of the dunghill of the insulator surface of contamination for a period of time under the conditions of the haze of natural reality Element composition compares the surface complexion, the partial size of filthy particulate matter and the contamination feature of insulator different parts of dunghill Compared with analysis.

But due to the outside atmospheric conditions of experiment be it is uncontrollable, cannot effectively analyze various typical haze parameters Influence to insulator contamination, and natural conditions are changeable, it is difficult to a stable and controllable haze environment is obtained, is existed to mist The accuracy that insulator contamination accumulation characteristics are detected under haze environment is low, is not able to satisfy various experiments of insulator under the conditions of haze It is required that.

For the low technical problem of the accuracy detected in the prior art to insulator contamination accumulation characteristics under haze environment, Currently no effective solution has been proposed.

Summary of the invention

The main purpose of the present invention is to provide the detection method and device of insulator contamination accumulation characteristics under a kind of haze environment, At least to solve the technical problem low to the accuracy that insulator contamination accumulation characteristics are detected under haze environment.

To achieve the goals above, according to an aspect of the invention, there is provided insulator contamination under a kind of haze environment The detection method of characteristic.This method comprises: detecting the first haze of the insulator surface contamination of power grid under the conditions of first environment The information of substance；The second haze substance is determined according to the information of the first haze substance, wherein the second haze substance is for simulating the One haze substance；Under the conditions of second environment, first object haze environment is established in target container by the second haze substance, And under first object haze environment, contamination processing is carried out to insulator, obtains the target contamination data of insulator surface, In, second environment condition is determined by first environment condition；Target contamination data are handled, to determine the contamination of insulator Characteristic.

Optionally, contamination processing, before obtaining the target contamination data of insulator surface, this method are being carried out to insulator Further include: obtain Target Weather Information under the conditions of first environment；Second environment condition is determined according to Target Weather Information.

Optionally, the information for detecting the first haze substance of the insulator surface contamination of power grid includes: at least to detect power grid Insulator surface contamination the first haze substance partial size and constituent, wherein the information of the first haze substance is at least wrapped Include partial size and constituent.

Optionally, determine that the second haze substance includes: the group from the first haze substance according to the information of the first haze substance It is greater than the plurality of target chemical element of targets threshold at content determining in ingredient；Respectively obtain with it is a variety of in the first haze substance The target substance identical in quality of target chemical element, obtains plurality of target substance；To the first object in plurality of target substance Substance is handled, and the salt fog reagent of the second haze substance is obtained, wherein salt fog reagent is used to generate the mist of the second haze substance Gas；The second target substance in plurality of target substance is handled according to partial size, obtains the haze particle of the second haze substance.

Optionally, first object haze environment is established in target container by the second haze substance, and in first object Under haze environment, contamination processing is carried out to insulator, the target contamination data for obtaining insulator surface include: to add salt fog reagent It adds in target aqueous solution, obtains the solution of target conductivity；The haze particle of the solution of target conductivity and aimed quality is filled Enter in target container, establishes the first object haze environment for continuing the first object duration；Under first object haze environment, Contamination processing is carried out to insulator, obtains first object contamination data.

Optionally, contamination processing, after obtaining first object contamination data, this method are being carried out to insulator further include: By the way that at least one of following parameter is varied multiple times, to establish multiple second target haze environment: first object substance, second Target substance, target conductivity, aimed quality and first object duration；Respectively under multiple second target haze environment, Contamination processing is carried out to insulator, obtains multiple second target contamination data.

Optionally, target contamination data are handled, to determine that the contamination accumulation characteristics of insulator include: to first object product Dirty data and multiple second target contamination data are handled, and determine first object substance, the second target substance, target conductance The influence degree of rate, aimed quality and first object duration to the contamination accumulation characteristics of insulator.

Optionally, contamination processing is carried out to insulator, the target contamination data for obtaining insulator surface include: to insulator Contamination processing is carried out, and detects the equivalent salt density via contamination treated insulator surface.

Optionally, contamination processing is carried out to insulator, the target contamination data for obtaining insulator surface include: to insulator Contamination processing is carried out, and in the case where reaching the second target time duration to insulator progress contamination processing, every between target Every the time according to the voltage of target voltage raising insulator, until insulator arc-over；Obtain the flashover voltage of insulator.

Optionally, when obtaining the flashover voltage of insulator, this method further include: obtain the Leakage Current of insulator；It will The maximum value of the peak value of Leakage Current is determined as the value of insulator Leakage Current under first object haze environment.

Optionally, when obtaining the flashover voltage of insulator, this method further include: obtain the electric discharge image of insulator；Base The flashover path of insulator is obtained in electric discharge image.

To achieve the goals above, according to another aspect of the present invention, subproduct of insulating under a kind of haze environment is additionally provided The detection device of dirty characteristic.The device includes: detection unit, for detecting the insulation sublist of power grid under the conditions of first environment The information of first haze substance of area dirt；Determination unit, for determining the second haze object according to the information of the first haze substance Matter, wherein the second haze substance is for simulating the first haze substance；First processing units, for leading under the conditions of second environment It crosses the second haze substance and establishes first object haze environment in target container, and under first object haze environment, to insulation Son carries out contamination processing, obtains the target contamination data of insulator surface, wherein second environment condition passes through first environment condition It determines；The second processing unit, for handling target contamination data, to determine the contamination accumulation characteristics of insulator.

To achieve the goals above, according to another aspect of the present invention, a kind of storage medium is additionally provided.The storage medium Program including storage, wherein equipment where control storage medium executes the haze ring of the embodiment of the present invention in program operation The detection method of insulator contamination accumulation characteristics under border.

To achieve the goals above, according to another aspect of the present invention, a kind of processor is additionally provided.The processor is used for Run program, wherein the detection method of insulator contamination accumulation characteristics under the haze environment of the embodiment of the present invention is executed when program is run.

Through the invention, using the first haze object of the insulator surface contamination under the conditions of first environment, detecting power grid The information of matter；The second haze substance is determined according to the information of the first haze substance, wherein the second haze substance is for simulating first Haze substance；Under the conditions of second environment, first object haze environment is established in target container by the second haze substance, and Under first object haze environment, contamination processing is carried out to insulator, obtains the target contamination data of insulator surface, wherein Second environment condition is determined by first environment condition；Target contamination data are handled, the contamination to determine insulator is special Property.Due to determining the second haze substance according to the information of the first haze substance under the conditions of first environment, by the second haze object Under the target haze environment that matter is established, contamination processing is carried out to insulator, obtains target contamination data, and then to target contamination number According to being handled, the contamination accumulation characteristics of insulator are determined, to not influenced by natural conditions, greatly reduce due to natural conditions Change bring randomness, meet haze experiment condition requirement, reached raising to insulator contamination accumulation characteristics under haze environment into The technical effect of the accuracy of row detection, solves low to the accuracy that insulator contamination accumulation characteristics are detected under haze environment Technical problem.

Detailed description of the invention

The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the signal of the detection device of insulator contamination accumulation characteristics under a kind of haze environment according to an embodiment of the present invention Figure；

Fig. 2 is the process of the detection method of insulator contamination accumulation characteristics under a kind of haze environment according to an embodiment of the present invention Figure；

Fig. 3 is a kind of structural schematic diagram of the device of simulation haze experiment according to an embodiment of the present invention；

Fig. 4 is a kind of schematic diagram of double full skirt composite insulator samples according to an embodiment of the present invention；And

Fig. 5 is the signal of the detection device of insulator contamination accumulation characteristics under a kind of haze environment according to an embodiment of the present invention Figure.

Specific embodiment

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection It encloses.

It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.

Embodiment 1

The embodiment of the invention provides a kind of detection devices of insulator contamination accumulation characteristics under haze environment.

Fig. 1 is the signal of the detection device of insulator contamination accumulation characteristics under a kind of haze environment according to an embodiment of the present invention Figure.As shown in 1, which includes: haze generating system 10, target container 20, data acquisition components 30 and terminal 40.

Haze generating system 10, for generating and the information corresponding second of the first haze substance under the conditions of first environment The second haze substance under environmental condition.

In this embodiment, first environment condition is real environmental conditions, and second environment condition is according to first environment condition It determines, can be the Essential Environment condition of experiment, it is local under the real environmental conditions that can be provided according to meteorological department to represent The basic weather information of power transmission and transformation equipment operation determines Essential Environment condition, wherein basic weather information may include temperature, The relevant informations such as wind speed, atmospheric pressure value, PM2.5, PM10, TSP.

The information of the first haze substance under the conditions of the first environment of the embodiment can for haze particle particle size, Chemical element composition and the regularity of distribution.Optionally, which is detected by energy disperse spectroscopy and scanning electron microscope in first environment item Under part during haze the microscopic appearance of the surface pollution layer of the insulator of contamination and each element absorption peak, observe in different positions The multiple groups insulator set, for example, ten groups of insulators of observation different location, its microscopic appearance of comprehensive descision and chemical element group At, and determine by microscopic appearance the particle size and the regularity of distribution of haze particle.

The embodiment generates the information pair with the first haze substance under the conditions of first environment by haze generating system 10 The second haze substance under the conditions of the second environment answered, the second haze substance are the simulation haze particle for meeting requirement of experiment Object can select the chemical element of wherein rich content, and according to reality according to the composition of the chemical element of the first haze substance The factors such as physicochemical properties, select the simulation salt fog of the calcium sulfate, sodium chloride of phase homogenous quantities as the second haze substance Reagent, using the fine particulates that the calcium sulfate of phase homogenous quantities, silica, aluminium oxide, iron powder are constituted as the second haze substance Haze particle ingredient, wherein haze particle object can be milled to the satisfactory particle of partial size by ball mill.

The haze generating system 10 of the embodiment may include mist generating system, and configured simulation salt fog reagent is added To in the water tank of mist generating system, the amount of salt fog reagent is gradually added, and stirred with glass bar.During churning, each Increase salt fog reagent and then stir a period of time with glass bar, then tested with conductivity meter, until conductivity reaches Default conductivity then stops adding salt fog reagent, wherein for a period of time can be 5min, herein with no restrictions；The embodiment Haze generating system 10 can also include haze generating system, and the mixture of configured haze particle is put into the spray of haze generating system In haze pipeline.

Optionally, which opens adjustable transformer under the conditions of second environment, opens mist generating system and haze occurs System, generates the second haze substance, which includes the fog of default conductivity and the haze particle object of budget quality.

Target container 20 is connected with haze generating system 10, and is internally provided with insulator, for passing through the second haze Substance establishes target haze environment.

The target container 20 of the embodiment can be haze tank, can be transparent organic glass cuboid tank, top is set It is equipped with lid, is provided with through-hole on side wall, to be attached with haze generating system 10.Target container is internally provided with insulator, For example, insulator hangs on the center of 20 inner space of target container, and connect experimental line.

The embodiment is gradually filled with the second haze substance into target container 20 by haze generating system, passes through the second mist Haze substance establishes target haze environment in target container.Optionally, which passes through haze generating system to target container In be gradually filled with the fog of default conductivity and the haze particle object of preset quality, and maintain moisture stable.

Optionally, the embodiment is before the experiments, it is ensured that target container 20 is clean, internal not remaining haze particle object with And fog, insulator surface is clean, not remaining filth, to avoid experimental result is influenced.

Data acquisition components 30, are connected with insulator, for acquiring target product of the insulator under target haze environment Dirty data.

In this embodiment, after establishing target haze environment in target container by the second haze substance, insulation Son starts contamination under target haze environment, generates target contamination data.The data acquisition components 30 of the embodiment can be used for Acquire target contamination data of the insulator under target haze environment.The data acquisition components may be under the haze environment absolutely In the Leakage Current acquisition system of the detection device of edge contamination accumulation characteristics.

Optionally, the target contamination data of the embodiment are the equivalent salt density of insulator, which is external insulation list Equivalent salt amount on bit surface area, is the equivalence for characterizing electrical apparatus external insulation pollution level.When insulator contamination reaches When preset time, adjusting transformer makes voltage be reduced to 0, then closes haze generating system 10, remove insulator, measures its equivalent salt It is close.It can repeat the above experiment repeatedly, multiple equivalent salt density is averaged, final equivalent salt density is obtained.

Optionally, the target contamination data of the embodiment are the flashover voltage of insulator.It is provided when insulator contamination reaches When the time, it can continue to increase voltage with the rate of 0.5kV per second, until insulator arc-over, at this moment remembers according to uniform boosting method Voltage value when insulator arc-over is recorded, repeatedly tests, multiple flashover voltage is averaged, obtains final flashover electricity Pressure.

Optionally, the target contamination data of the embodiment are insulator Leakage Current.Leakage Current is handled, is removed Influence of the noise to leakage current can handle the peak value of leakage current, obtain the maximum value of the peak value of leakage current, And then the maximum value of the Leakage Current peak value is expressed as to the value of leakage current under haze parameter, and by multiple Leakage Current Value is averaged, and obtains final leakage current.

Terminal 40 is connected with data acquisition components 30, and the contamination for determining insulator by target contamination data is special Property.

The embodiment is acquiring target contamination data of the insulator under target haze environment by data acquisition components 30 Later, target contamination data can be input to terminal 40, terminal 40 determines that the contamination of insulator is special by target contamination data Property.The terminal 40 may be under the haze environment in the Leakage Current acquisition system of the detection device of insulator contamination accumulation characteristics, Can be personal computer (PersonalComputer, referred to as PC).

Optionally, Leakage Current and discharge data are input to terminal 40 by data acquisition components 30, and terminal 40 saves leakage Electric current and electric discharge image corresponding with discharge data etc. are to be processed.Terminal 40 can observe electric discharge image, and interception is exhausted There is electric arc from electric discharge is started in edge, and electric arc gradually increases, to the process of final flashover, to obtain the flashover road of insulator Diameter.

Optionally, which mainly obtains second environment condition by changing haze parameter, that is, obtaining typical mould Quasi- haze condition.For example, haze parameter include mist conductivity, the ingredient of mist, the ingredient of fine particulates, the haze duration, The quality (1g, 2g, 3g, 4g, 5g, 6g) of fine particulates.By change mist conductivity (0,2000,4000,6000,8000), The ingredient (salt fog constituted respectively with the calcium sulfate of phase homogenous quantities, sodium chloride) of mist, the ingredient of fine particulates is (respectively with identical The fine particulates that calcium sulfate, silica, aluminium oxide, the iron powder of quality are constituted) and the different haze duration (10min, 20min, 30min, 40min, 50min, 60min), the quality (1g, 2g, 3g, 4g, 5g, 6g) of fine particulates, weight It is tested again, the final equivalent salt density of every kind of typical haze parameter is obtained by data acquisition components 30.Finally by terminal The 40 equivalent salt density drawing images that will be obtained, observation haze duration variation, mist conductivity variations, mist ingredient, haze ingredient become Change the influence to equivalent salt density, probes into influence of the typical haze parameter to insulator contamination accumulation characteristics to realize.

Optionally, which repeats to test, and obtains every kind of typical haze parameter by data acquisition components 30 Final flashover voltage and Leakage Current.Finally, passing through terminal 40 for the flashover voltage and Leakage Current of obtained insulator It is plotted as image, by the variation of image viewing haze duration, mist conductivity variations, mist ingredient, haze composition transfer to flashover The influence of voltage and Leakage Current, to probe into influence of the typical haze parameter to insulator arc-over and flashover property.

Optionally, which is the influence for probing into typical haze parameter to the flashover voltage of the insulator, can analyze and compares The changing rule of the flashover voltage of the insulator under different haze parameters studies different haze parameters to the shadow of insulator arc-over characteristic It rings.

The embodiment generates the information pair with the first haze substance under the conditions of first environment by haze generating system 10 The second haze substance under the conditions of the second environment answered is connected by target container 20 with haze generating system 10, and internal It is provided with insulator, for establishing target haze environment in target container by the second haze substance, acquires portion by data Part 30 is connected with insulator, for acquiring target contamination data of the insulator under target haze environment, by terminal 40 with Data acquisition components 30 are connected, for determining the contamination accumulation characteristics of insulator by target contamination data.Due to according to the first ring The information of the first haze substance under the conditions of border determines the second haze substance, in the target haze ring established by the second haze substance Under border, contamination processing is carried out to insulator, obtains target contamination data, and then handle target contamination data, determined exhausted The contamination accumulation characteristics of edge greatly reduce to not influenced by natural conditions since natural conditions change bring randomness, Meet haze experiment condition requirement, reaches the skill for improving the accuracy detected to insulator contamination accumulation characteristics under haze environment Art effect solves the technical problem low to the accuracy that insulator contamination accumulation characteristics are detected under haze environment.

Optionally, the haze generating system of the embodiment includes: mist generating system, and positioned at the top of insulator, and mist is sent out The front end of raw system enters the inside of target container, for generating the fog in the second haze substance；Haze generating system is located at exhausted The side of edge, and the front end of haze generating system enters the inside of target container, for generating the haze in the second haze substance Grain.

In this embodiment, haze generating system includes mist generating system, and target appearance is protruded into the front end of the mist generating system The inside of device is placed in the top of insulator, for generating the fog in the second haze substance, open mist generating system it Afterwards, pre-configured fog is filled with into target container.The haze generating system of the embodiment further includes haze generating system, should The inside of target container is protruded into the front end of haze generating system, is placed in the side of insulator, for generating in the second haze substance Haze particle the mixture of pre-configured haze particle is filled with to target container when opening haze generating system.

Optionally, the mist generating system of the embodiment includes: water tank, positioned at the outside of target container, and is provided with electricity Conductance test component, for configuring the solution of target conductivity by salt fog reagent；Ultrasonic humidifier, positioned at target container Outside, and the power of ultrasonic humidifier allows to be conditioned, for adjusting the humidity of target container；Cricoid cartilage, with ultrasonic wave Humidifier is connected, and positioned at the inside of target container, and is provided with multiple atomizing nozzles, for converting the solution of target conductivity For the fog in the second haze substance.

The mist generating system of the embodiment includes water tank, which is located at the outside of target container, and is provided with electricity Conductance test component, the conductivity test component can be conductivity measurement.Optionally, the embodiment is by configured salt fog Reagent is added in the water tank of mist generating system, gradually increases the amount of salt fog reagent, and stirred in water tank with glass bar. During stirring in water tank, after increasing salt fog reagent every time into water tank, it is stirred for a period of time with glass bar, so The solution in water tank is tested with conductivity test component instrument afterwards, until the conductivity of the solution in water tank reaches target conductance Rate then stops increasing salt fog reagent into water tank.

The fog generator of the embodiment further includes ultrasonic humidifier, and the ultrasonic humidifier namely ultrasonic fog occur Device, positioned at the outside of target container, power adjustable, for adjusting the humidity of target container, for example, open mist generating system and Haze generating system is gradually filled with after the fog of target conductivity and the haze particle object of preset quality into target container, is adjusted The power of ultrasonic humidifier adjusts its power to suitable registration, maintains mesh when the humidity in target container reaches 80% Mark the stabilization of the humidity of container.

The fog generator of the embodiment further includes cricoid cartilage, which can be added by connection hose with ultrasonic wave Wet device is attached, and is located inside target container, can be circumferentially uniformly provided on the cricoid cartilage along annulus multiple identical Atomizing nozzle, for example, 4 identical atomizing nozzles are opened up, for converting the solution of target conductivity in the second haze substance Fog.Wherein, the through-hole for wearing connection hose is provided on the side wall of target container.

Optionally, the haze generating system of the embodiment includes: air blower, positioned at the outside of target container, and air blower Power allows to be conditioned, for conveying gas；Haze hose is sprayed, the first end of spray haze hose is connected with air blower, sprays haze hose Second end be located at the inside of target container, for placing haze particle.

The haze generator of the embodiment may include the air blower positioned at the outside of target container, and the power of the air blower can It adjusts.The haze generating system of the embodiment further includes spray haze hose, and one end is located inside, the other end and the air blower of target container It is detachably connected, for placing the haze particle in the second haze substance, wherein be provided with and be used on the side wall of target container Wear the through-hole of spray haze hose.Optionally, the mixture of the haze particle in configured second haze substance is put into haze in advance In the pipeline of the spray haze hose of generating system, then haze hose will be sprayed and connected with air blower.

Optionally, the equipment of the embodiment further include: Humidity Detection component, the front end of Humidity Detection component enter target appearance The lower section of the inside of device, for detecting the humidity of target container.

The detection device of insulator contamination accumulation characteristics can also include Humidity Detection component under the haze environment of the embodiment, wet The middle part place on the lower side for the inner space that target container is protruded into degree detection part front end, for detecting the humidity of target container.Wherein, The through-hole for wearing Humidity Detection component is provided on the side wall of target container.

Optionally, mist generating system and haze generating system are being opened, is making gradually to be filled with target conductivity in target container Fog and preset quality haze particle object, by observe Humidity Detection component registration, to adjust the function of ultrasonic humidifier Rate adjusts the power of ultrasonic humidifier to a suitable registration when Humidity Detection component detects that humidity reaches 80%, from And maintain the stabilization of the humidity in target container.

Optionally, the Humidity Detection component of the embodiment is hair hygrograph, the hair hygrograph simple structure, user Just.

Optionally, the equipment of the embodiment further include: electric discharge image acquisition component, for obtaining the electric discharge figure of insulator Picture.

The detection device of insulator contamination accumulation characteristics further includes electric discharge image acquisition component under the haze environment of the embodiment, can To obtain the electric discharge characteristics of image of insulator, electric discharge characteristics of image is observed, interception insulator electricity occurs from electric discharge is started Arc, electric arc gradually increase, and to the process of final flashover, obtain the flashover path of insulator, and can also get insulator Arc position, quantity variation that electric discharge is etc..

Optionally, the electric discharge image acquisition component of the embodiment is video camera.

Optionally, the equipment of the embodiment further include: compression system is connected with the bottom end of insulator, for being insulation Son pressurization.

In this embodiment, compression system is connected with the bottom end of insulator, for pressurizeing for insulator.For example, when exhausted When edge subproduct dirt reaches the stipulated time, it can uniformly be boosted to insulator by compression system.

Optionally, the compression system of the embodiment includes: adjustable transformer, with every the target interval time according to target electricity Pressure increases the voltage of insulator；Protective resistance is connected with adjustable transformer, for protecting to adjustable transformer.

The compression system of the embodiment includes adjustable transformer, can at interval of the object time with target voltage to insulator Pressurization, for example, pressurizeed with the rate of 0.5kV per second to insulator, until insulator arc-over, voltage value when recording flashover, and will It is medium to be processed that Leakage Current and electric discharge image are saved in terminal.It repeatedly tests, wherein can be by multiple flashover electricity Pressure is averaged, and obtains final flashover voltage.

Optionally, which opens adjustable transformer, raising voltage 0.5kV per second, until voltage is increased to 15kV, then Mist generating system and haze generating system are opened, makes gradually to be filled with the fog of target conductivity and the haze of preset quality in target container Particulate matter.

Optionally, for the embodiment when insulator contamination reaches preset time, adjusting adjustable transformer makes the electricity of insulator Pressure will be 0, close mist haze tank, haze generating system, remove insulator, then measure the equivalent salt density of insulator.Wherein it is possible to weight Multiple test of many times, multiple equivalent salt density is averaged, final equivalent salt density is obtained.

Optionally, the adjustable transformer of the embodiment is introduced on insulator by conducting wire.Adjustable transformer is alternating current-direct current Dual-purpose transformer, rated capacity can be 100KVA, and nominal input voltage can be 400V, and specified input current is can be with For 250A, specified ac output voltage can be 100KV, and nominal DC output voltage can be 140KV, and output-current rating can Think that 1000mA, short-circuit impedance can be 10%, no-load current can be 4%, to meet High-Voltage Experimentation requirement.

The protective resistance of the embodiment is connected with adjustable transformer, for protecting to adjustable transformer.

Optionally, the insulator of the embodiment is double full skirt composite insulators.

Double full skirt composite insulator samples can use silicon rubber insulator sample, be made of two full skirts, upper full skirt Greater than lower full skirt.For example, upper full skirt area 118cm², subumbrella skirt product 50cm²。

Optionally, the equipment of the embodiment includes Leakage Current acquisition system, which includes protection Circuit, data acquisition components and terminal.Wherein, circuit on one side connecting insulator is protected, the other end connects data acquisition components Input terminal, the output end of data acquisition components connect PC, which may include data collecting card and protection circuit.

The embodiment, can be rapid during the existing haze compared with insulator contamination and the detection device of flashover property, Accurately, controllably under the conditions of simulation haze insulator contamination situation, to meet insulator accelerated aging tests in electric system Rigors, while reducing the cost of experimental study.

The embodiment carries out generation, maintenance, the dissipation of haze in a haze tank, and then carries out insulator during haze Contamination and flashover are tested, compared with the experiment of natural haze contamination, convenient for the control of various experiment conditions, not by the shadow of natural conditions It rings, greatly reduces since natural conditions change bring randomness, improve accuracy, meet haze experiment condition requirement.

The mist generating system and haze generating system of the embodiment are that opening is adjustable, are applicable in a variety of chemical components use is made It simulates the salt fog reagent and haze particle of haze, can more meet the various chemical components in practical haze substance, to more meet Engineering is practical.

The embodiment can integrate the parameters such as the discharge current, electric discharge image, flashover voltage of accurate detection insulator, will be each Parameter combines come the electric discharge flashover property of insulator during probing into haze, multi-faceted, multi-angle observation experiment phenomenon, thus Convenient for probing into inherent mechanism.

The embodiment can accelerate the simulation of insulator contamination during haze, can complete within a shorter time pair The contamination or even electric discharge flashover of haze, to greatly reduce the time cost of experiment.

Embodiment 2

The embodiment of the invention also provides a kind of detection methods of insulator contamination accumulation characteristics under haze environment.It needs to illustrate It is that the detection method of insulator contamination accumulation characteristics can be by insulator contamination accumulation characteristics under haze environment under the haze environment of the embodiment Detection device execute.

Fig. 2 is the process of the detection method of insulator contamination accumulation characteristics under a kind of haze environment according to an embodiment of the present invention Figure.As shown in Fig. 2, method includes the following steps:

Step S202 detects the letter of the first haze substance of the insulator surface contamination of power grid under the conditions of first environment Breath.

Above-mentioned steps S202 of the present invention provide technical solution in, first environment condition be real environmental conditions, first The information of the first haze substance under environmental condition can be the particle size of haze particle, chemical element composition and distribution rule Rule.

Under the conditions of first environment, the information of the first haze substance of the insulator surface contamination of power grid, Ke Yijian are detected Survey the microscopic appearance and each element of the surface pollution layer of the insulator of contamination during haze under first environment part in power grid Absorption peak, its microscopic appearance of comprehensive descision and chemical element composition and determine the first haze haze by microscopic appearance Particle size and the regularity of distribution of grain etc..

Step S204 determines the second haze substance according to the information of the first haze substance.

In the technical solution that above-mentioned steps S204 of the present invention is provided, the first of the insulator surface contamination of detection power grid After the information of haze substance, the second haze substance is determined according to the information of the first haze substance, wherein the second haze substance is used In the first haze substance of simulation.

Second haze substance of the embodiment is the simulation haze particulate matter for meeting requirement of experiment, can be according to the first mist The composition of the chemical element of haze substance selects the chemical element of wherein rich content, and according to actual physicochemical properties etc. Factor selects the simulation salt fog reagent of the calcium sulfate, sodium chloride of phase homogenous quantities as the second haze substance, with phase homogenous quantities Ingredient of the fine particulates that calcium sulfate, silica, aluminium oxide, iron powder are constituted as the haze particle of the second haze substance, In, haze particle object can be milled to the satisfactory particle of partial size by ball mill.

Step S206 establishes first object mist by the second haze substance under the conditions of second environment in target container Haze environment, and under first object haze environment, contamination processing is carried out to insulator, obtains the target contamination number of insulator surface According to.

In the technical solution that above-mentioned steps S206 of the present invention is provided, second is being determined according to the information of the first haze substance After haze substance, under the conditions of second environment, first object haze ring is established in target container by the second haze substance Border, and under first object haze environment, contamination processing is carried out to insulator, obtains the target contamination data of insulator surface, Wherein, second environment condition is determined by first environment condition.

In this embodiment, second environment condition is determined according to first environment condition, can be the Essential Environment item of experiment Part, can be according to the basic weather information that can represent power transmission and transformation equipment operation local under the real environmental conditions of meteorological department's offer To determine Essential Environment condition, wherein basic weather information may include temperature, wind speed, atmospheric pressure value, PM2.5, PM10, TSP etc. Relevant information.

The embodiment establishes first object haze environment by the second haze substance in target container, wherein target is held Device can be haze tank, can be transparent organic glass cuboid tank, and top is provided with lid, is provided with through-hole on side wall, with It is attached with mist generating system and haze generating system.The embodiment can pass through configured mould under the conditions of second environment Quasi- salt fog reagent and the mixture of configured haze particle establish first object haze environment in target container.

After establishing first object haze environment in target container by the second haze substance, in first object haze Under environment, insulator starts contamination under target haze environment, generates target contamination data.

Optionally, the target contamination data of the embodiment are the equivalent salt density of insulator.When insulator contamination reaches default When the time, adjusting transformer makes voltage be reduced to 0, then closes haze generating system, remove insulator, measure its equivalent salt density.It can To repeat the above experiment repeatedly, multiple equivalent salt density is averaged, final equivalent salt density is obtained.It can be in different mists Under the hazes parameters such as haze duration, mist conductivity, mist ingredient, haze ingredient, the equivalent salt density of insulator is obtained.

Optionally, the target contamination data of the embodiment are the flashover voltage of insulator.It is provided when insulator contamination reaches When the time, it can continue to increase voltage with the rate of 0.5kV per second, until insulator arc-over, at this moment remembers according to uniform boosting method Voltage value when insulator arc-over is recorded, repeatedly tests, multiple flashover voltage is averaged, obtains final flashover electricity Pressure.The sudden strain of a muscle of insulator can be obtained under the hazes parameters such as different haze duration, mist conductivity, mist ingredient, haze ingredient Network voltage.

Optionally, the target contamination data of the embodiment are the Leakage Current of insulator.To the Leakage Current of insulator into Row acquisition, can be handled Leakage Current, remove influence of the noise to leakage current, can peak value to leakage current into Row processing, obtains the maximum value of the peak value of leakage current, and then the maximum value of the Leakage Current peak value is expressed as haze parameter Under leakage current value, and multiple Leakage Current value is averaged, obtains final leakage current.It can be different Under the hazes parameters such as haze duration, mist conductivity, mist ingredient, haze ingredient, the Leakage Current of insulator is obtained.

Step S208 handles target contamination data, to determine the contamination accumulation characteristics of insulator.

In the technical solution that above-mentioned steps S208 of the present invention is provided, contamination processing is being carried out to insulator, is being insulated After the target contamination data in sublist face, target contamination data are handled, to determine the contamination accumulation characteristics of insulator.

Optionally, which draws after obtaining the equivalent salt density of insulator surface to insulator progress contamination processing Equivalent salt density image processed, can from equivalent salt density image the variation of haze duration, mist conductivity variations, mist ingredient, Influence of the haze composition transfer to equivalent salt density probes into influence of the typical haze parameter to insulator contamination accumulation characteristics to realize.

The flashover voltage for obtaining insulator and Leakage Current can also be plotted as image by the embodiment, be seen by image The variation of haze duration, mist conductivity variations, mist ingredient, haze composition transfer are examined to the shadow of flashover voltage and Leakage Current It rings, to probe into influence of the typical haze parameter to insulator arc-over and flashover property.

Optionally, which is the influence for probing into typical haze parameter to the flashover voltage of the insulator, can analyze and compares The changing rule of the flashover voltage of the insulator under different haze parameters studies different haze parameters to the shadow of insulator arc-over characteristic It rings.

S202 to step S208 through the above steps detects the insulator surface contamination of power grid under the conditions of first environment The first haze substance information；The second haze substance is determined according to the information of the first haze substance, wherein the second haze substance For simulating the first haze substance；Under the conditions of second environment, the first mesh is established in target container by the second haze substance Haze environment is marked, and under first object haze environment, contamination processing is carried out to insulator, obtains the target product of insulator surface Dirty data, wherein second environment condition is determined by first environment condition；Target contamination data are handled, it is exhausted to determine The contamination accumulation characteristics of edge.Due to determining the second haze substance according to the information of the first haze substance under the conditions of first environment, Under the target haze environment established by the second haze substance, contamination processing is carried out to insulator, obtains target contamination data, in turn Target contamination data are handled, determine the contamination accumulation characteristics of insulator, to not influenced by natural conditions, are greatly reduced Since natural conditions change bring randomness, meet haze experiment condition requirement, reaches raising to insulating under haze environment The technical effect for the accuracy that sub- contamination accumulation characteristics are detected is solved and is detected to insulator contamination accumulation characteristics under haze environment The low technical problem of accuracy.

As an alternative embodiment, step S206, is carrying out contamination processing to insulator, is obtaining insulator surface Target contamination data before, this method further include: obtain Target Weather Information under the conditions of first environment；According to target gas Image information determines second environment condition.

In this embodiment it is possible to determine second environment condition according to Target Weather Information, which is Locality can represent the basic weather information under the conditions of the first environment of power transmission and transformation equipment operation, may include temperature, wind speed, air pressure The relevant informations such as value, PM2.5, PM10, TSP determine second environment condition according to basic weather information, that is, determining basic ring Border condition.

As an alternative embodiment, step S202, detects the first haze object of the insulator surface contamination of power grid The information of matter includes: at least to detect the partial size and constituent of the first haze substance of insulator surface contamination of power grid, wherein The information of first haze substance includes at least partial size and constituent.

It in this embodiment, can be down in the information for detecting the first haze substance of insulator surface contamination of power grid The partial size and constituent for detecting the first haze substance of the insulator surface contamination of power grid less, can also detect the first haze object The regularity of distribution of the haze particle of matter.The embodiment can detect the power grid under first environment part by energy disperse spectroscopy and scanning electron microscope In the absorption peak of the microscopic appearance of the surface pollution layer of the insulator of contamination and each element during haze, observe different location Multiple groups insulator, for example, 10 groups of insulators of observation different location, its microscopic appearance of comprehensive descision and constituent, and Particle size and the regularity of distribution etc. of haze particle are determined by microscopic appearance.

The embodiment is using scanning electron microscope and energy disperse spectroscopy come the shape characteristic of the insulator of contamination during detecting haze and member Element composition, and the haze according to used in result preparation experiment simulates reagent, makes the detection of contamination and flashover property during haze The physicochemical property for more meeting local haze, improves the contamination of insulator and the accuracy of flashover property relevant experimental data.

As an alternative embodiment, step S204, determines the second mist according to according to the information of the first haze substance Haze substance includes: to determine that content is greater than the plurality of target chemical element of targets threshold from the constituent of the first haze substance； The target substance identical in quality with the plurality of target chemical element in the first haze substance is obtained respectively, obtains plurality of target object Matter；First object substance in plurality of target substance is handled, obtains the salt fog reagent of the second haze substance, wherein salt Mist reagent is used to generate the fog of the second haze substance；According to partial size to the second target substance in plurality of target substance at Reason, obtains the haze particle of the second haze substance.

In this embodiment, determine that content is greater than the plurality of target of targets threshold from the constituent of the first haze substance Chemical element can select a variety of chemical elements of wherein rich content according to the composition of the chemical element of the first haze substance. The target substance identical in quality with the plurality of target chemical element in the first haze substance is obtained respectively, obtains plurality of target object Matter, the plurality of target substance may include the substances such as calcium sulfate, sodium chloride, silica, aluminium oxide, iron powder.

First object substance in plurality of target substance is handled, the salt fog reagent of the second haze substance is obtained, In, first object substance namely mist ingredient, including calcium sulfate, sodium chloride, it can be according to actual physical property, chemical property etc. Factor selects the simulation salt fog reagent of the calcium sulfate, sodium chloride of phase homogenous quantities as the second haze substance.According to partial size to more The second target substance in kind target substance is handled, and obtains the haze particle of the second haze substance, wherein the second target substance Namely haze ingredient, may include calcium sulfate, silica, aluminium oxide, iron powder, can the calcium sulfate of phase homogenous quantities, silica, Ingredient of the fine particulates that aluminium oxide, iron powder are constituted as the haze particle of the second haze substance, wherein haze particle object can lead to It crosses ball mill the second target substance is milled to partial size and meet the partial size of fixed haze particle, that is, being milled to partial size symbol Close desired particle.

The embodiment uses a variety of chemical components the salt fog reagent and haze particle for simulating haze is made, and can more accord with The various chemical components in practical haze are closed, engineering reality is more met.

As an alternative embodiment, step S206, establishes first by the second haze substance in target container Target haze environment, and under first object haze environment, contamination processing is carried out to insulator, obtains the target of insulator surface Contamination data include: that salt fog reagent is added in target aqueous solution, obtain the solution of target conductivity；By target conductivity The haze particle of solution and aimed quality is filled in target container, establishes the first object haze ring for continuing the first object duration Border；Under first object haze environment, contamination processing is carried out to insulator, obtains first object contamination data.

In this embodiment, after determining the second haze substance according to the information of the first haze substance, by salt fog reagent It is added in target aqueous solution, obtains the solution of target conductivity.The embodiment can will configure under the conditions of second environment Simulation salt fog reagent be added in the water tank of mist generating system, gradually to the amount of water tank addition salt fog reagent, and use glass The stirring of glass stick.During churning, increasing salt fog reagent to water tank every time and then stirring a period of time with glass bar, so Afterwards with the conductivity of conductivity meter test solution, then stop adding to water tank up to the conductivity of solution reaches target conductivity Salt fog reagent, wherein target conductivity is mist conductivity, for a period of time can be 5min；The embodiment is also by configured mesh The mixture of haze particle for marking quality is put into the spray haze pipeline of haze generating system, and then by the solution and target of target conductivity The haze particle of quality is filled in target container, establishes first object haze environment.

Optionally, the embodiment is under the conditions of second environment, opens adjustable transformer, can raising voltage 0.5kV per second, Until voltage is increased to 15kV, mist generating system and haze generating system are opened, makes gradually to be filled with target conductivity in target container Salt fog reagent fog and aimed quality haze particle object, to establish first object haze environment.Optionally, it establishes and continues The first object haze environment of first object duration carries out contamination processing to insulator under first object haze environment, First object contamination data are obtained, for example, adjusting transformer makes electricity when reaching the first object duration to insulator contamination Pressure will be 0, close mist generating system and haze generating system, so that the first object haze environment established disappears in target container It dissipates.Wherein, first object duration namely haze duration.

As an alternative embodiment, to insulator carry out contamination processing, obtain first object contamination data it Afterwards, this method further include: by the way that at least one of following parameter is varied multiple times, to establish multiple second target haze environment: First object substance, the second target substance, target conductivity, aimed quality and first object duration；Respectively multiple Under two target haze environment, contamination processing is carried out to insulator, obtains multiple second target contamination data.

In this embodiment, pass through first object substance, the second target substance, target conductivity, aimed quality and first Target time duration establishes first object haze environment, more to establish by the way that at least one of above-mentioned parameter is varied multiple times A second target haze environment, the parameter namely haze parameter.

In this embodiment, multiple second target haze environment mainly are established by changing haze parameter, respectively more Under a second target haze environment, contamination processing is carried out to insulator, obtains multiple second target contamination data.

Optionally, the haze parameter of the embodiment may include target conductivity (0,2000,4000,6000,8000), One target substance (salt fog constituted respectively with the calcium sulfate of phase homogenous quantities, sodium chloride), the second target substance are (respectively with phase homogeneity The fine particulates that the calcium sulfate of amount, silica, aluminium oxide, iron powder are constituted), the first object duration (10min, 20min, 30min, 40min, 50min, 60min), the aimed quality (1g, 2g, 3g, 4g, 5g, 6g) of haze particle.

The second different target haze environment is established by changing above-mentioned haze parameter, repeats to test, can obtain The final equivalent salt density of every kind of typical haze parameter.

Optionally, the second different target haze environment is established by changing above-mentioned haze parameter, repeats to test, it can To obtain the flashover voltage and Leakage Current of every kind of typical haze parameter.

The method that the embodiment uses control variate method to combine with equivalence principle can study single haze ginseng well Influence of the number variation to insulator contamination accumulation characteristics and flashover property, to improve controllability and accuracy.

As an alternative embodiment, step S208, is handled target contamination data, to determine insulator Contamination accumulation characteristics include: to handle first object contamination data and multiple second target contamination data, determine first object object The influence of matter, the second target substance, target conductivity, aimed quality and first object duration to the contamination accumulation characteristics of insulator Degree.

Multiple second target contamination data of the embodiment include the equivalent salt density under different second target haze environment, can With the equivalent salt density drawing image under difference the second target haze environment that will obtain, object observing conductivity, first object object Matter, the second target substance, first object duration, aimed quality of haze particle etc. change the influence to equivalent salt density, probe into Influence of the typical haze parameter to insulator contamination accumulation characteristics.

Optionally, multiple second target contamination data of the embodiment include the flashover under different second target haze environment Voltage and Leakage Current, can by under obtained difference the second target haze environment flashover voltage and Leakage Current draw Image, object observing conductivity, first object substance, the second target substance, the first object duration, haze particle target matter Influence of the variation such as amount to flashover voltage and Leakage Current, probes into typical haze parameter to insulator arc-over and flashover property Influence.

As an alternative embodiment, carrying out contamination processing to insulator, the target contamination of insulator surface is obtained Data include: to carry out contamination processing to insulator, and detect the equivalent salt density via contamination treated insulator surface, In, equivalent salt density can be used for being characterized under first object haze environment, the contamination degree of insulator.

In this embodiment, under the first object haze environment of lasting first object duration, insulator surface meeting Contamination, via the equivalent salt density of contamination treated insulator surface, which can be used for being characterized in the first mesh for detection It marks under haze environment, equivalent salt density is determined as the target contamination data of insulator surface by the contamination degree of insulator.The implementation Example can be repeated as many times and test, and multiple equivalent salt density is averaged, final equivalent salt density is obtained.

Optionally, it is " dirty can to follow GB/T 26218.1-2010 for the measurement of the equivalent salt density of the embodiment and calculation method The selection of the high-tension insulator used under the conditions of dirty and size determine " in appendix C " measurement of equivalent salt density and NSDD ".By institute Smaller with the area of insulator, to guarantee measurement accuracy, the insulator after contamination is tested carries out pollution level measurement, takes Measurement operation is as follows:

Step 1 measures the pure water of 250mL in beaker, clamps suitable absorbent cotton with tweezers, anti-in pure water Physical pendulum is dynamic, finally squeezes close to walls of beaker, the water in absorbent cotton is squeezed clean；

Step 2 utilizes conductivity measuring instrument water temperature and conductivity；

Absorbent cotton is wiped repeatedly in insulator surface, after wiping across, absorbent cotton is swung 10s in beaker by step 3, And close to walls of beaker extruding defatting cotton, it is repeated 3 times, squeezes absorbent cotton completely after last time；

Step 4 measures the water temperature and conductivity in beaker at this time with liquid 5min in glass bar stirring beaker；

Step 5 by the data reduction measured at equivalent salt density, and subtracts step with the equivalent salt density that step 4 obtains Two obtained equivalent salt densities, obtained numerical value are exactly the equivalent salt density of insulator pollution layer.

As an alternative embodiment, carrying out contamination processing to insulator, the target contamination of insulator surface is obtained Data include: to carry out contamination processing to insulator, and reach the second target time duration carrying out contamination processing to insulator In the case of, every the target interval time according to the voltage of target voltage raising insulator, until insulator arc-over；Obtain insulator Flashover voltage.

In this embodiment, contamination processing is being carried out to insulator, and is reaching second carrying out contamination processing to insulator In the case where target time duration, according to uniform boosting method, insulator is increased according to target voltage every the target interval time Voltage, for example, until insulator arc-over, record dodges every the target interval time according to the voltage of target voltage raising insulator The voltage value of insulator when network, obtains flashover voltage, and flashover voltage is determined as to the target contamination data of insulator surface.It should Embodiment can be repeated as many times and test, and multiple flashover voltage is averaged, final flashover voltage is obtained.

As an alternative embodiment, when obtaining the flashover voltage of insulator, this method further include: obtain insulation The Leakage Current of son；By the maximum value of the peak value of Leakage Current, it is determined as insulator and reveals electricity under first object haze environment The value of stream.

In this embodiment, when obtaining the flashover voltage of insulator, the Leakage Current of insulator is obtained, to Leakage Current It is handled, influence of the noise to Leakage Current can be removed, the peak value of Leakage Current can be handled, obtain leakage electricity The maximum value of stream peak value, the maximum value of the peak value of the Leakage Current can be used to indicate that the leakage under first object haze environment The value of electric current, and multiple Leakage Current value is averaged, obtain final leakage current.Optionally, which can be with The Leakage Current of insulation group, which is saved in PC, to be handled.

As an alternative embodiment, when obtaining the flashover voltage of insulator, this method further include: obtain insulation The electric discharge image of son；The flashover path of insulator is obtained based on electric discharge image.

In this embodiment, when obtaining the flashover voltage of insulator, the discharge current of available insulator, by putting Electric current generates electric discharge image, and interception insulator electric arc occurs from electric discharge is started from electric discharge image, gradually increases to electric arc, arrives The process of final flashover, obtains insulator arc-over path.

The embodiment is using the method that flashover voltage, discharge current and electric discharge image combine come exhausted during probing into haze The electric discharge flashover property of edge, thus the observation experiment phenomenon of Multi-orientation multi-angle, convenient for probing into inherent mechanism.

The embodiment, can be rapid during the existing haze compared with insulator contamination and flashover property detection method, quasi- Really, controllably under the conditions of simulation haze insulator contamination situation, to meet insulator accelerated aging tests in electric system Rigors, while reducing the cost of experimental study, and can be completed within a shorter time be to the contamination of haze To electric discharge flashover, the time cost of experiment is greatly reduced.

It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not The sequence being same as herein executes shown or described step.

Embodiment 3

Technical solution of the present invention is illustrated below with reference to preferred embodiment.

The embodiment proposes a kind of quickly simulation haze contamination situation, and studies the contamination of insulator under the conditions of haze The detection method of characteristic and rule, to meet the requirement of insulator accelerated aging tests in electric system.

Fig. 3 is a kind of structural schematic diagram of the device of simulation haze experiment according to an embodiment of the present invention.As shown in 3, The device includes: compression system, haze tank ontology 3, the double full skirt compound inslations being made of adjustable transformer 1 and protective resistance 2 Sub- sample 4, mist generating system 5, haze generating system 6, hair hygrograph 7, video camera 8, by protection circuit 9, data acquisition components The Leakage Current acquisition system of 10 and PC11 composition.

Wherein, double full skirt composite insulator samples 4 hang on the center of 3 inner space of haze tank ontology, double full skirts The bottom end of composite insulator sample 4 is connected with compression system, and the top of double full skirt composite insulator samples 4 is adopted with Leakage Current The protection circuit 9 of collecting system is connected, and the cricoid cartilage of the front end of mist generating system 5 protrudes into the inside of haze tank ontology 3, juxtaposition In the top of double full skirt composite insulator samples 4, the inside of haze tank ontology 3 is protruded into the front end of haze generating system 6, is placed in double The side of full skirt composite insulator sample 4, the middle part that the inner space of haze tank ontology 3 is protruded into 7 front end of hair hygrograph are on the lower side Place.

Wherein, adjustable transformer 1 is introduced on double full skirt composite insulator samples 4 by conducting wire.The adjustable transformer 1 is AC and DC transformer, rated capacity 100KVA, nominal input voltage 400V, specified input current are 250A, specified friendship Stream output voltage is 100KV, and nominal DC output voltage is 140KV, output-current rating 1000mA, and short-circuit impedance is 10%, no-load current 4% meets High-Voltage Experimentation requirement.

Wherein, mist generating system 5 includes the water tank and ultrasonic humidifier outside haze tank ontology 3, Yi Jiwei Cricoid cartilage inside haze tank ontology 3, wherein cricoid cartilage is connect by connecting hose with ultrasonic humidifier, cyclic annular Multiple identical atomizing nozzles are circumferentially uniformly provided on hose along annulus, for example, offering 4 identical atomizing nozzles, water tank It is provided with conductivity test component, the power adjustable of ultrasonic humidifier.

Wherein, haze generating system 6 includes that air blower outside the haze tank ontology 3 and one end are located at haze tank ontology 3 The spray haze that is detachably connected of inside, one end and air blower it is soft, wherein the power adjustable of air blower.

Wherein, one end of the protection circuit 9 of Leakage Current acquisition component connects double full skirt composite insulator samples 4, another The input terminal of end connection data acquisition components 10, the output end of data acquisition components 10 connect PC11, and data acquisition components include Data collecting card and protection circuit.

Wherein, haze tank ontology 3 is transparent organic glass cuboid tank, for example, being long 100cm, width 50cm, height The cuboid tank of 115cm, top are provided with lid, are provided on side wall for wearing connection hose, spray haze hose and Humidity Detection The through-hole of component.

Fig. 4 is a kind of schematic diagram of double full skirt composite insulator samples according to an embodiment of the present invention.As shown in figure 4, double Full skirt composite insulator sample uses silicon rubber insulator sample, is made of two full skirts, and upper full skirt is greater than lower full skirt.For example, Upper full skirt area 118cm², subumbrella skirt product 50cm²。

The simulation haze experiment of the embodiment is introduced below.

In this embodiment, the energy generation of the related tested insulator locality of the full-scale condition provided by collection meteorological department The basic weather information of table power transmission and transformation equipment operation, the basic weather information include temperature, wind speed, atmospheric pressure value, PM2.5, PM10, The relevant informations such as TSP, it is dirty with the haze analog insulation subproduct for after and flashover experiment provides basic environmental condition.

The embodiment detects the insulator of contamination during the haze in actual electric network by energy disperse spectroscopy and scanning electron microscope 10 groups of insulators of different location, comprehensive descision haze substance are observed in the microscopic appearance of surface pollution layer and each element absorption peak Microscopic appearance and chemical element composition, and by microscopic appearance determine haze particle particle size and distribution advise Rule.

According to the composition of the chemical element of the haze substance detected, the chemical element and basis of wherein rich content are selected The factors such as actual physicochemical properties are picked out calcium sulfate, the sodium chloride of phase homogenous quantities, are made of calcium sulfate, sodium chloride Salt fog reagent is simulated, fine particulates are constituted with the calcium sulfate of phase homogenous quantities, silica, aluminium oxide, iron powder, using as haze The ingredient of grain.Wherein, particulate matter can be milled to partial size by ball mill and meet the requirements.

According to the device of aforementioned simulation haze experiment shown in Fig. 3, and insulator shown in Fig. 4 is selected as used in experiment Sample.Before the experiments, it is ensured that haze tank is clean, and remaining haze particle object and fog, insulator surface be not dry in pipeline Insulator, is hung on the center side of haze tank ontology, and connect experimental line by not remaining filth only.

In this embodiment, mist generating system and haze generating system are configured.Configured salt fog reagent is added to mist hair In the water tank of raw system, gradually increase the amount of salt fog reagent to water tank, and stirred with glass bar, during churning, every After secondary increase salt fog reagent, 5min is stirred with glass bar, then tested with conductivity meter, until conductivity reaches present count Value.The mixture of configured haze particle is also put into the pipeline of spray haze hose of haze generating system by the embodiment.

The embodiment configures Leakage Current acquisition system and image capturing system, makes its start-up operation.Opening can modulation Depressor, raising voltage 0.5kV per second open mist generating system and haze generating system, make haze tank until voltage is increased to 15kV In be gradually filled with default conductivity salt fog reagent fog and preset quality haze particle object.Pass through observation hair hygrograph Registration adjusts the power of ultrasonic fog generator, when humidity reaches 80%, adjusts its power to a suitable registration, maintains The stabilization of humidity.

When insulator contamination reaches preset time, adjusting transformer makes voltage that will be 0, closes mist generating system, haze hair Raw system, removes insulator, measures its equivalent salt density.It repeats the above experiment repeatedly, multiple equivalent salt density is averaged, from And obtain final equivalent salt density.

In this embodiment, typical simulation haze condition mainly is obtained by changing haze parameter, haze parameter is main Including mist conductivity (0,2000,4000,6000,8000), mist ingredient (respectively with the calcium sulfate of phase homogenous quantities, sodium chloride structure At salt fog), the ingredients of fine particulates (constituted respectively with the calcium sulfate of phase homogenous quantities, silica, aluminium oxide, iron powder Fine particulates) and it is the different haze duration (10min, 20min, 30min, 40min, 50min, 60min), subtle The quality (1g, 2g, 3g, 4g, 5g, 6g) of particulate matter, repeats to test, and obtains final etc. under every kind of typical haze parameter It is close to be worth salt.

Finally, the equivalent salt density drawing image that will be obtained, observation haze duration variation, mist conductivity variations, mist at Divide, influence of the haze composition transfer to equivalent salt density, probes into influence of the typical haze parameter to insulator contamination accumulation characteristics.

Optionally, the embodiment is after maintaining moisture stable, when contamination reaches the stipulated time, can rise according to uniform Platen press continues to increase voltage with the rate of 0.5kV per second, until insulator arc-over, voltage value when recording flashover, and will leakage electricity It is medium to be processed that stream and electric discharge image are saved in PC.Repeat experiment repeatedly, multiple flashover voltage is averaged, is obtained The flashover voltage final to insulator.

The embodiment handles Leakage Current, removes influence of the noise to Leakage Current.To the peak value of Leakage Current It is handled, obtains the maximum value of leakage current peak value, the maximum value is for indicating in the haze environment determined by haze parameter Under leakage current value, and multiple Leakage Current value is averaged, obtains final leakage current.

The embodiment observes electric discharge image, and interception insulator electric arc occurs from electric discharge is started, and electric arc gradually increases, To the process of final flashover, insulator arc-over path is observed.

In this embodiment, typical simulation haze condition is obtained by changing haze parameter, which includes mist Ingredient (the salt constituted respectively with the calcium sulfate of phase homogenous quantities, sodium chloride of conductivity (0,2000,4000,6000,8000), mist Mist), ingredient (subtle constituted respectively with the calcium sulfate of phase homogenous quantities, silica, aluminium oxide, iron powder of fine particulates Grain object) and the haze duration (10min, 20min, 30min, 40min, 50min, 60min), the quality of fine particulates (1g, 2g, 3g, 4g, 5g, 6g) repeats to test, and obtains the final flashover voltage and leakage of every kind of typical haze parameter Electric current.

Finally, by obtained flashover voltage and Leakage Current, drafting pattern picture observes haze duration, mist conductance The influence of rate, mist ingredient, haze composition transfer to flashover voltage and Leakage Current, to probe into typical haze parameter to insulator Electric discharge and the influence of flashover property.

The embodiment can analyze the different mists of comparison to probe into influence of the typical haze parameter to the flashover voltage of the insulator The changing rule of the flashover voltage of the insulator under haze parameter studies influence of the different haze parameters to insulator arc-over characteristic.To visit Electric arc changes when studying carefully typical haze parameter to for flashover path and flashover during probing into haze when insulator arc-over, can adopt Electric discharge characteristics of image when insulator arc-over, arc position when observation is discharged, quantity variation etc. are acquired with image acquisition component.

Optionally, in this embodiment, in order to guarantee the accuracy of measurement data, final result is taken repeatedly measure it is flat Mean value, and require every time the error between each secondary measured value and average value less than 15%.For example, the final result of flashover voltage can To be indicated with following formula,Wherein, U_iFor indicating the measured value of each flashover voltage, N is for indicating experiment time Number.

The embodiment uses a kind of scheme for simulating haze, and the generation of haze is carried out in a haze tank, maintains, disappear It dissipates, and then insulator contamination and flashover are tested during progress haze, compared with the experiment of natural haze contamination, is convenient for various experiment items The control of part, is not influenced by natural conditions, is greatly reduced since natural conditions change bring randomness, and it is accurate to improve Property, meet haze experiment condition requirement；Using the pattern of the insulator of contamination during scanning electron microscope and energy disperse spectroscopy detection haze Feature and element form, and the haze according to used in result preparation experiment simulates reagent, keep contamination and flashover during haze special Property detection more meet the physicochemical property of local haze, improve the contamination and flashover property relevant experimental data of insulator Accuracy；The salt fog and haze particle for simulating haze are made of a variety of chemical components, can more meet in practical haze Various chemical components more meet engineering reality；The method combined using control variate method with equivalence principle can be ground well Study carefully influence of the single haze Parameters variation to insulator contamination accumulation characteristics and flashover property, improves controllability and accuracy；It adopts It is more with the method that discharge current, electric discharge image, flashover voltage combine come the electric discharge flashover property of insulator during probing into haze The observation experiment phenomenon of orientation multi-angle, convenient for probing into inherent mechanism；Take insulator contamination during a kind of acceleration haze Experimental method, can complete within a shorter time to the contamination of haze or even electric discharge flashover, greatly reduce experiment when Between cost.

Embodiment 4

The embodiment of the invention also provides a kind of detection devices of insulator contamination accumulation characteristics under haze environment.It needs to illustrate It is that the detection device of insulator contamination accumulation characteristics can be used for executing the haze of the embodiment of the present invention under the haze environment of the embodiment The detection method of insulator contamination accumulation characteristics under environment.

Fig. 5 is the signal of the detection device of insulator contamination accumulation characteristics under a kind of haze environment according to an embodiment of the present invention Figure.As shown in 5, which includes: detection unit 50, determination unit 60, first processing units 70 and the second processing unit 80.

Detection unit 50, for detecting the first haze object of the insulator surface contamination of power grid under the conditions of first environment The information of matter.

Determination unit 60, for determining the second haze substance according to the information of the first haze substance, wherein the second haze object Matter is for simulating the first haze substance.

First processing units 70, for being established in target container by the second haze substance under the conditions of second environment First object haze environment, and under first object haze environment, contamination processing is carried out to insulator, obtains insulator surface Target contamination data, wherein second environment condition is determined by first environment condition.

The second processing unit 80, for handling target contamination data, to determine the contamination accumulation characteristics of insulator.

Embodiment 5

The embodiment of the invention also provides a kind of storage mediums.The storage medium includes the program of storage, wherein in program The detection side of insulator contamination accumulation characteristics under the haze environment of the equipment execution embodiment of the present invention where controlling storage medium when operation Method.

Embodiment 6

The embodiment of the invention also provides a kind of processors.The processor is for running program, wherein program is held when running The detection method of insulator contamination accumulation characteristics under the haze environment of the row embodiment of the present invention.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific Hardware and software combines.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (14)

1. the detection method of insulator contamination accumulation characteristics under a kind of haze environment characterized by comprising

Under the conditions of first environment, the information of the first haze substance of the insulator surface contamination of power grid is detected；

The second haze substance is determined according to the information of the first haze substance, wherein the second haze substance is for simulating The first haze substance；

Under the conditions of second environment, first object haze environment is established in target container by the second haze substance, and Under the first object haze environment, contamination processing is carried out to the insulator, obtains the target product of the insulator surface Dirty data, wherein the second environment condition is determined by the first environment condition；

The target contamination data are handled, with the contamination accumulation characteristics of the determination insulator.

2. the method according to claim 1, wherein being obtained described carrying out contamination processing to the insulator Before the target contamination data of insulator surface, the method also includes:

Obtain the Target Weather Information under the conditions of first environment；

The second environment condition is determined according to the Target Weather Information.

3. the method according to claim 1, wherein the first haze object of the insulator surface contamination of detection power grid The information of matter includes:

At least detect the partial size and constituent of the first haze substance of the insulator surface contamination of the power grid, wherein The information of the first haze substance includes at least the partial size and the constituent.

4. according to the method described in claim 3, it is characterized in that, determining the second mist according to the information of the first haze substance Haze substance includes:

Determine that content is greater than the plurality of target chemical element of targets threshold from the constituent of the first haze substance；

The target substance identical in quality with the plurality of target chemical element in the first haze substance is obtained respectively, is obtained To plurality of target substance；

First object substance in the plurality of target substance is handled, the salt fog examination of the second haze substance is obtained Agent, wherein the salt fog reagent is used to generate the fog of the second haze substance；

The second target substance in the plurality of target substance is handled according to the partial size, obtains the second haze object The haze particle of matter.

5. according to the method described in claim 4, it is characterized in that, being established in target container by the second haze substance First object haze environment, and under the first object haze environment, contamination processing is carried out to the insulator, is obtained described The target contamination data of insulator surface include:

The salt fog reagent is added in target aqueous solution, the solution of target conductivity is obtained；

The haze particle of the solution of the target conductivity and aimed quality is filled in the target container, foundation continues the The first object haze environment of one target time duration；

Under the first object haze environment, contamination processing is carried out to the insulator, obtains first object contamination data.

6. according to the method described in claim 5, it is characterized in that, obtaining first carrying out contamination processing to the insulator After target contamination data, the method also includes:

By the way that at least one of following parameter is varied multiple times, to establish multiple second target haze environment: the first object Substance, second target substance, the target conductivity, the aimed quality and the first object duration；

Respectively under the multiple second target haze environment, contamination processing is carried out to the insulator, obtains multiple second mesh Scalar product dirt data.

7. according to the method described in claim 6, it is characterized in that, handling the target contamination data, to determine The contamination accumulation characteristics for stating insulator include:

The first object contamination data and the multiple second target contamination data are handled, determine the first object Substance, second target substance, the target conductivity, the aimed quality and the first object duration are to described The influence degree of the contamination accumulation characteristics of insulator.

8. method as claimed in any of claims 1 to 7 carries out contamination processing to the insulator, obtain described The target contamination data of insulator surface include:

Contamination processing is carried out to the insulator, and detects the equivalent salt density via contamination treated the insulator surface.

9. method as claimed in any of claims 1 to 7 carries out contamination processing to the insulator, obtain described The target contamination data of insulator surface include:

Contamination processing is carried out to the insulator, and reaches the second target time duration carrying out contamination processing to the insulator In the case where, the voltage of the insulator is increased according to target voltage every the target interval time, until the insulator arc-over；

Obtain the flashover voltage of the insulator.

10. according to the method described in claim 9, when obtaining the flashover voltage of the insulator, the method also includes:

Obtain the Leakage Current of the insulator；

By the maximum value of the peak value of the Leakage Current, it is described under the first object haze environment to be determined as the insulator The value of Leakage Current.

11. according to the method described in claim 9, when obtaining the flashover voltage of the insulator, the method also includes:

Obtain the electric discharge image of the insulator；

The flashover path of the insulator is obtained based on the electric discharge image.

12. the detection device of insulator contamination accumulation characteristics under a kind of haze environment characterized by comprising

Detection unit, for detecting the letter of the first haze substance of the insulator surface contamination of power grid under the conditions of first environment Breath；

Determination unit, for determining the second haze substance according to the information of the first haze substance, wherein second haze Substance is for simulating the first haze substance；

First processing units establish the by the second haze substance under the conditions of second environment in target container One target haze environment, and under the first object haze environment, contamination processing is carried out to the insulator, is obtained described exhausted The target contamination data in edge sublist face, wherein the second environment condition is determined by the first environment condition；

The second processing unit, for handling the target contamination data, with the contamination accumulation characteristics of the determination insulator.

13. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program When control the storage medium where equipment perform claim require any one of 1 to 11 described in method.

14. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run Benefit require any one of 1 to 11 described in method.