阅读说明：本技术 一种高压输电设施积污特性测试方法与装置 (Method and device for testing pollution accumulation characteristics of high-voltage power transmission facility ) 是由 姜雨泽 姜迪文 李其莹 李新梅 李乐丰 李�杰 臧玉魏 马新刚 李守正 于 2020-11-25 设计创作，主要内容包括：一种高压输电设施积污特性测试装置及方法,装置包括：积污特性测试实验箱(1)、环境模拟模块、输电模拟模块、监测模块和连接管路(14)；环境模拟模块通过连接管路(14)与积污特性测试实验箱(1)相连接,用于模拟实际大气环境；输电模拟模块设置在积污特性测试实验箱(1)内部,用于模拟输电线路实际运行；监测模块与积污特性测试实验箱(1)相连接,用于监测环境参数和电气参数。系统内的气溶胶浓度、温湿度、气体流速和气流方向等参数可以调整；通过增加气溶胶发生器的颗粒浓度是大气环境质量中气溶胶浓度的倍数,加速输电设施积污,实现快速测试高压输电设施积污特性。(A device and a method for testing the fouling characteristics of high-voltage power transmission facilities are disclosed, wherein the device comprises: the device comprises a pollution accumulation characteristic test experiment box (1), an environment simulation module, a power transmission simulation module, a monitoring module and a connecting pipeline (14); the environment simulation module is connected with the pollutant accumulation characteristic test experiment box (1) through a connecting pipeline (14) and is used for simulating the actual atmospheric environment; the power transmission simulation module is arranged in the pollution accumulation characteristic test experiment box (1) and used for simulating the actual operation of the power transmission line; the monitoring module is connected with the pollutant accumulation characteristic test experiment box (1) and is used for monitoring environmental parameters and electrical parameters. Parameters such as aerosol concentration, temperature and humidity, gas flow velocity, airflow direction and the like in the system can be adjusted; by increasing the particle concentration of the aerosol generator to be a multiple of the aerosol concentration in the atmospheric environment quality, the pollution accumulation of the power transmission facility is accelerated, and the pollution accumulation characteristic of the high-voltage power transmission facility is rapidly tested.)

1. A high-voltage power transmission facility fouling characteristic testing device comprises: the device comprises a pollution accumulation characteristic test experiment box (1), an environment simulation module, a power transmission simulation module, a monitoring module and a connecting pipeline (14); it is characterized in that the preparation method is characterized in that,

the environment simulation module is connected with the pollutant accumulation characteristic test experiment box (1) through a connecting pipeline (14) and is used for simulating the actual atmospheric environment;

the power transmission simulation module is arranged in the pollution accumulation characteristic test experiment box (1) and used for simulating the actual operation of the power transmission line;

the monitoring module is connected with the dirt accumulation characteristic test experiment box (1) and is used for monitoring experiment parameters.

2. The device for testing fouling characteristics of a high-voltage power transmission facility according to claim 1, characterized in that:

the environment simulation module includes: an aerosol generator (8); the aerosol generator (8) is connected with the pollutant accumulation characteristic test experiment box (1) through a connecting pipeline (14) and is used for regulating and controlling the aerosol concentration in the pollutant accumulation characteristic test experiment box (1).

3. The device for testing fouling characteristics of a high-voltage power transmission facility according to claim 1, characterized in that:

the environment simulation module includes: a temperature and humidity controller (9); the temperature and humidity controller (9) is connected with the accumulated dirt characteristic test experiment box (1) through a connecting pipeline (14) and is used for regulating and controlling the air temperature and humidity inside the accumulated dirt characteristic test experiment box (1).

4. The device for testing fouling characteristics of a high-voltage power transmission facility according to claim 1, characterized in that:

the environment simulation module includes: a fan (11); the fan (11) is connected with the fouling characteristic test experiment box (1) through a connecting pipeline (14) and is used for regulating and controlling air flow inside the fouling characteristic test experiment box (1).

5. The high-voltage power transmission facility fouling characteristic testing device according to any one of claims 1 to 4, characterized in that:

the power transmission simulation module includes: the device comprises a pole lead (2), a grounding pole plate (3), an insulating support (4) and a power supply (10); the pole wire (2) is fixed by an insulating bracket (4) and is connected with the output end of the power supply (10) through a wire.

6. The device for testing fouling characteristics of a high-voltage power transmission facility according to claim 5, characterized in that:

the pole lead (2) is divided into three sections, namely a shielding wire area (5) and a middle sampling area (6) on two sides, and the lengths of the three areas are not less than the distance between the pole lead (2) and the grounding pole plate (3).

7. The high-voltage power transmission facility fouling characteristic testing device according to any one of claims 1 to 6, characterized in that:

the monitoring module includes: an environmental parameter monitoring system (12) and an electrical parameter monitoring system (13).

8. The high-voltage power transmission facility fouling characteristic testing device according to any one of claims 1 to 6, characterized in that:

the device for testing the fouling deposition characteristic of the high-voltage power transmission facility further comprises: and the sampling test piece (7) is placed in the middle sampling area (6) of the polar lead (2) and is used for testing and evaluating the pollution accumulation characteristic influence factors of the surface material of the ground power facility.

9. The high-voltage power transmission facility fouling characteristic testing device according to any one of claims 1 to 6, characterized in that:

the device for testing the fouling deposition characteristic of the high-voltage power transmission facility further comprises: and the sampling test piece (7) is placed on the grounding polar plate (3) and is used for testing and evaluating the influence factors of the pollution accumulation characteristics of the ground power facility of the terminal point of the polar lead (2) and the middle sampling area (6).

10. A high-voltage power transmission facility fouling characteristic test method using the high-voltage power transmission facility fouling characteristic test apparatus according to any one of claims 1 to 9, characterized by comprising the steps of:

step 1, placing a sampling test piece (7) according to a test item of an electric power facility to be tested;

step 2, setting environment simulation parameters, starting an environment simulation module and starting a monitoring module until the environment simulation parameters are reached in the pollution accumulation characteristic test experiment box (1);

step 3, setting power transmission simulation parameters and operation time, starting a power transmission simulation module, and entering step 4 after the operation time is reached;

and 4, measuring the accumulated dirt amount of the sampling test piece (7) to obtain the accumulated dirt characteristic of the power transmission facility.

11. The method according to claim 10, wherein the method comprises:

the step 1 comprises the following steps: if the influence factors of the fouling characteristics of the surface material of the ground power facility are tested and evaluated, a sampling test piece (7) is placed in a middle sampling area (6) of the polar lead (2); if the influence factors of the pollution accumulation characteristics of the end point of the electrode lead (2) and the ground power facility of the middle sampling area (6) are tested and evaluated, the sampling test piece (7) is placed on the grounding polar plate (3).

12. The method for testing fouling characteristics of a high-voltage power transmission facility according to claim 10 or 11, characterized by:

the step 2 comprises the following steps: according to the actual atmospheric environment to be simulated in the experiment, the operating parameters of the aerosol generator (8), the temperature and humidity regulator (9) and the fan (11) are set, and the parameter monitoring system (12) is used for monitoring the aerosol concentration and the temperature and humidity in the pollution accumulation characteristic test experiment box (1) to achieve the stability of the aerosol concentration and the temperature and humidity.

13. The method for testing fouling characteristics of a high-voltage power transmission facility according to claim 10 or 11, characterized by:

the step 2 comprises the following steps: the dust amount of the aerosol generator (8) is regulated and controlled to be 2-100 times of the aerosol concentration in the atmospheric environment.

14. The method for testing fouling characteristics of a high-voltage power transmission facility according to any one of claims 10 to 13, characterized by:

the step 3 comprises the following steps: and starting a power supply (10) to supply power to the pole wire (2), measuring the resultant field intensity and ion current density generated by the discharge of the pole wire (2) and the corona current through an electrical parameter testing system (13), and stably supplying power for a set time by the power supply (10).

15. The method for testing fouling characteristics of a high-voltage power transmission facility according to any one of claims 10 to 14, characterized by:

step 4 comprises the following steps: and analyzing the fouling characteristics of the high-voltage power transmission facility by calculating the fouling amount per unit area.

Technical Field

The invention belongs to the technical field of high-voltage power transmission and transformation and power systems, and relates to a method and a device for testing the pollution accumulation characteristic of a high-voltage power transmission facility.

Background

Direct current transmission becomes an important part of the construction of strong smart power grids and extra-high voltage alternating current and direct current power grids in China, and is an extremely important energy transmission artery. However, the surface contamination of the pole wire, insulator and dc equipment is more serious than that of the ac transmission because of the static effect of fixed polarity in the dc transmission. The surface of the electrode wire is continuously polluted, the surface roughness of the initiating electrode wire is increased, the field intensity of corona starting is lower and lower, and the corona discharge is stronger and stronger. The corona discharge is enhanced, the space charge is increased, the space resultant field intensity is increased, the charge quantity of the suspended particulate matters in the air is increased due to the two factors, and the electrostatic force for driving the deposition of the particulate matters is in direct proportion to the charge quantity of the particles and the electric field intensity, so that the electrostatic force for driving the electrostatic deposition of the particulate matters is increased, and the deposition is enhanced. Corona discharge and pollution accumulation are mutually promoted, vicious circle is realized, and the corona discharge and the pollution accumulation are continuously increased along with the increase of the operation age. The corona discharge is continuously deteriorated, which leads to the continuous increase of corona loss, and at the same time, the ion current density, the resultant field intensity, the noise and the radio interference, which are the electromagnetic environment indexes closely related to the corona discharge, are continuously deteriorated.

The direct current dirt accumulation also brings other two hazards: firstly, the pollution accumulation of the insulator is increased, so that pollution flashover of direct-current transmission is more difficult to control, and the safe operation of a direct-current transmission system is seriously threatened; secondly, the dirt accumulation causes partial discharge, which causes the parts of the porcelain bushing, the direct current filter, the sleeve and other equipment to be broken down and damaged due to the partial discharge. The measures of increasing the length of the insulator string, repeatedly cleaning dirt on the surface of equipment, coating anti-pollution flashover coating and the like are adopted, and the construction cost and the operation and maintenance cost of external insulation control are increased. Therefore, the assessment and the evaluation of the pollution accumulation characteristics of the high-voltage direct-current power transmission facility are very necessary.

In the field of external insulation control, detection and analysis of ash density and salt density are adopted to examine the pollution deposition characteristics, and a basis is provided for external insulation pollution flashover control and local discharge control. The method reflects the actual condition of the surface dirt accumulation of the equipment, but the surface dirt amount of the equipment cannot be directly checked, and the dirt accumulation speed is difficult to check. Moreover, the natural fouling period is long, the environmental change factors are too many and uncontrollable during evaluation, the pollution-inducing factors are difficult to identify, and the influence of the operation factors cannot be selectively evaluated.

Disclosure of Invention

In order to solve the defects in the prior art, the invention aims to provide a method and a device for testing the pollutant accumulation characteristic of a high-voltage power transmission facility, which are used for simulating the actual atmospheric environment, have adjustable parameters, strong experimental design, quick examination and short evaluation period.

The invention adopts the following technical scheme. A high-voltage power transmission facility fouling characteristic testing device comprises: the device comprises a pollution accumulation characteristic test experiment box, an environment simulation module, a power transmission simulation module, a monitoring module and a connecting pipeline;

the environment simulation module is connected with the pollutant accumulation characteristic test experiment box through a connecting pipeline and is used for simulating an actual atmospheric environment;

the power transmission simulation module is arranged in the pollution accumulation characteristic test experiment box and used for simulating the actual operation of the power transmission line;

the monitoring module is connected with the pollutant accumulation characteristic test experiment box and used for monitoring experiment parameters.

Preferably, the environment simulation module includes: an aerosol generator; the aerosol generator is connected with the pollutant accumulation characteristic test experiment box through a connecting pipeline and is used for regulating and controlling the aerosol concentration in the pollutant accumulation characteristic test experiment box.

Preferably, the environment simulation module includes: a temperature and humidity controller; the temperature and humidity controller is connected with the accumulated dirt characteristic test experiment box through a connecting pipeline and is used for regulating and controlling the temperature and humidity of air inside the accumulated dirt characteristic test experiment box.

Preferably, the environment simulation module includes: a fan; the fan is connected with the accumulated dirt characteristic test experiment box through a connecting pipeline and is used for regulating and controlling air flow inside the accumulated dirt characteristic test experiment box.

Preferably, the power transmission simulation module includes: the device comprises a pole lead, a grounding pole plate, an insulating bracket and a power supply; the pole wire is fixed by an insulating bracket and is connected with the output end of the power supply through a wire.

Preferably, the pole lead is divided into three sections, namely a shielding line area and a middle sampling area on two sides, and the lengths of the three areas are not less than the distance between the pole lead and the grounding pole plate.

Preferably, the monitoring module comprises: environmental parameter monitoring system and electrical parameter monitoring system.

Preferably, the high-voltage power transmission facility fouling characteristic testing device further includes: and the sampling test piece is placed in the middle sampling area of the polar lead and is used for testing and evaluating the pollution accumulation characteristic influence factors of the surface material of the ground power facility.

Preferably, the high-voltage power transmission facility fouling characteristic testing device further includes: and the sampling test piece is placed on the grounding polar plate and used for testing and evaluating the pollution accumulation characteristic influence factors of the ground power facility of the polar lead end point and the middle sampling area.

The invention also provides a high-voltage power transmission facility pollutant accumulation characteristic test method using the high-voltage power transmission facility pollutant accumulation characteristic test device, which comprises the following steps: step 1, placing a sampling test piece according to a test item of an electric power facility to be tested;

step 2, setting environment simulation parameters, starting an environment simulation module, and starting a monitoring module until the environment simulation parameters are reached in the pollutant accumulation characteristic test experiment box;

step 3, setting power transmission simulation parameters and operation time, starting a power transmission simulation module, and entering step 4 after the operation time is reached;

and 4, measuring the accumulated dirt amount of the sampling test piece to obtain the accumulated dirt characteristic of the power transmission facility.

Preferably, step 1 comprises: if the influence factors of the dirt accumulation characteristics of the surface material of the ground power facility are tested and evaluated, placing a sampling test piece in the middle sampling area of the polar lead; and if the influence factors of the pollution accumulation characteristics of the ground power facility at the end point of the polar lead and the middle sampling area are tested and evaluated, placing the sampling test piece on the grounding polar plate.

Preferably, step 2 comprises: according to the actual atmospheric environment to be simulated in the experiment, the operating parameters of the aerosol generator, the temperature and humidity regulator and the fan are set, and the parameter monitoring system is used for monitoring the aerosol concentration and the temperature and the humidity in the pollutant accumulation characteristic test experiment box, so that the aerosol concentration and the temperature and humidity are stable.

Preferably, step 2 comprises: the dust amount of the aerosol generator is regulated and controlled to be 2-100 times of the aerosol concentration in the atmospheric environment.

Preferably, step 3 comprises: and starting a power supply to supply power to the pole wire, and measuring the resultant field intensity and ion current density generated by the discharge of the pole wire, the corona current and the stable power supply set time of the power supply through the electrical parameter testing system.

Preferably, step 4 comprises: and analyzing the fouling characteristics of the high-voltage power transmission facility by calculating the fouling amount per unit area.

Compared with the prior art, the method has the advantages of simulating the actual atmospheric environment, adjustable parameters, strong experimental design, quick examination and short evaluation period. The method specifically comprises the following steps: the experimental sample of the high-voltage power transmission facility is put into a dirt accumulation accelerating assessment device with an electrode lead and a grounding electrode plate, the dirt accumulation characteristic and the influence factors of the experimental sample are assessed, and the parameters such as aerosol concentration, temperature and humidity, gas flow velocity, airflow direction and the like in the system of the dirt accumulation accelerating assessment experimental device can be adjusted; by increasing the particle concentration of the aerosol generator to be the multiple of the aerosol concentration in atmospheric environment quality, the pollution accumulation of a power transmission facility is accelerated, and the pollution accumulation characteristic of the high-voltage direct-current power transmission facility is rapidly checked.

Drawings

FIG. 1 is a schematic diagram of a device for testing fouling characteristics of a high-voltage power transmission facility;

fig. 2 is a flow chart of a method for testing fouling characteristics of a high-voltage power transmission facility.

In the figure:

1-pollution accumulation characteristic test box;

a 2-pole lead;

3-a grounding polar plate;

4-an insulating support;

5-shielded wire area;

6-middle sampling area;

7-sampling test piece;

8-an aerosol generator;

9-a temperature and humidity controller;

10-a power supply;

11-a fan;

12-an environmental parameter monitoring system;

13-an electrical parameter monitoring system;

14-connecting the lines.

Detailed Description

The present application is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present application is not limited thereby.

As shown in fig. 1, the present invention provides a device for testing fouling characteristics of a high-voltage power transmission facility, comprising: the device comprises an accumulation characteristic test experiment box 1, an environment simulation module, a power transmission simulation module, a monitoring module and a connecting pipeline 14. The environment simulation module is connected with the pollutant accumulation characteristic test experiment box 1 through a connecting pipeline 14 and is used for simulating an actual atmospheric environment; the power transmission simulation module is arranged in the pollution accumulation characteristic test experiment box 1 and used for simulating the actual operation of the power transmission line; the monitoring module is connected with the pollutant accumulation characteristic test experiment box 1 and is used for monitoring experiment parameters.

It is understood that, one skilled in the art can arbitrarily manufacture the dimension specification of the contamination characteristic test box 1 according to the actual operation condition to be simulated by the experiment, and a preferred but non-limiting embodiment is that the contamination characteristic test box 1 is a box body with the dimension of 3000mm long, 1500mm wide and 1500mm high, which is made of 10mm thick organic glass.

The environment simulation module includes: aerosol generator 8, temperature and humidity controller 9 and fan 11. The aerosol generator 8 is connected with the contamination characteristic test experiment box 1 through a connecting pipeline 14 and is used for regulating and controlling the aerosol concentration in the contamination characteristic test experiment box 1. It is worth noting that those skilled in the art can adjust the dust generating amount of the aerosol generator 8 to be 2-100 times of the aerosol concentration in the atmospheric environment, so as to shorten the time of the experimental sample deposition and accelerate the examination speed.

The temperature and humidity controller 9 is connected with the accumulated dirt characteristic test experiment box 1 through a connecting pipeline 14 and is used for regulating and controlling the temperature and humidity of the air inside the accumulated dirt characteristic test experiment box 1.

The fan 11 is connected with the fouling characteristic test experiment box 1 through a connecting pipeline 14 and is used for regulating and controlling the airflow inside the fouling characteristic test experiment box 1.

The connecting pipeline 14 is connected with the fan, the dirt accumulation characteristic test experiment box 1, the aerosol generator 8, the temperature and humidity controller 9 and the like, so that gas circulation or exhaust to outdoor atmosphere is realized, the dust generation amount of the aerosol generator 8 is regulated and controlled to be a multiple of the aerosol concentration in the atmospheric environment, the dirt accumulation time of an experimental sample is shortened, and the examination speed is accelerated.

It should be noted that, those skilled in the art may arbitrarily configure the unit for generating the environmental factors in the environmental simulation module according to the actual atmospheric environment to be simulated by the experiment, the aerosol generator 8, the temperature and humidity controller 9 and the fan 11 are only one preferred but non-limiting embodiment for constructing the environmental simulation module, and more or less units, only one or two of the aerosol generator 8, the temperature and humidity controller 9 and the fan 11, or other types of units for generating the environmental factors are included in the inventive concept of the present invention and fall within the scope of the technical solution of the present invention.

The power transmission simulation module includes: the device comprises a pole lead 2, a grounding pole plate 3, an insulating bracket 4 and a power supply 10. The pole wire 2 is fixed using an insulating holder 4 and connected to the output of the power supply 10 by a wire.

It should be noted that, according to the power transmission line to be simulated by the experiment, the skilled person can arbitrarily configure the number, the size specification, etc. of the pole wire 2, the grounding pole plate 3, the insulating support 4 and the power supply 10, and a preferred but non-limiting embodiment is that the pole wire 2 is made of an aluminum wire with a diameter of 2mm and a length of 1500mm, the grounding pole plate 3 is made of a stainless steel plate with a length of 2000mm, a width of 1500mm and a thickness of 5mm, the insulating support 4 is made of a polyethylene rod with a length of 40mm to fix the pole wire 2, and the distance between the pole wire 2 and the grounding pole plate 3 is 500 mm.

It should be noted that the power transmission simulation module may be a dc power transmission simulation module or an ac power transmission simulation module, and when the contamination deposition characteristic of the high-voltage dc power transmission facility is tested, the dc power transmission simulation module is selected, and when the contamination deposition characteristic of the high-voltage ac power transmission facility is tested, the ac power transmission simulation module is selected.

The pole lead 2 is divided into three sections, namely a shielding line area 5 and a middle sampling area 6 at two sides, and the length of the three areas is not less than the distance between the pole lead 2 and the grounding pole plate 3. It will be appreciated that the skilled person can arbitrarily configure the dimensional specifications of the three sections according to the transmission line to be simulated experimentally, and a preferred but non-limiting embodiment is that if the pole conductor 2 is made of an aluminium metal wire with a diameter of 2mm and a length of 1500mm, and the distance between the pole conductor 2 and the ground plate 3 is 500mm, the shielded wire section 5 of the pole conductor 2 is 500mm, and the middle 500mm section of the pole conductor 2 is the sampling section 6.

The device for testing the fouling deposition characteristic of the high-voltage power transmission facility further comprises: the test piece 7 is sampled. When testing and evaluating the influence factors of the pollution accumulation characteristics of the surface material of the ground power facility, a sampling test piece 7 is placed in the middle sampling area 6 and used for overcoming the influence of the edge effect; when testing the influence factors of the pollution accumulation characteristics of the ground electric facilities of the end point of the evaluation polar lead 2 and the middle sampling area 6, the sampling test piece 7 is placed on the grounding polar plate 3. In a preferred but non-limiting embodiment, the sample strip 7 is a metal or ceramic plate with a thickness of 0.1-2mm, or a sheet of aluminum with a length of 40mm, a width of 40mm and a thickness of 0.5 mm.

The monitoring module includes: an environmental parameter monitoring system 12 and an electrical parameter monitoring system 13. The environmental parameter monitoring system 1 is used for aerosol concentration, temperature and humidity and air pressure in the pollution accumulation characteristic test experiment box 1, and the electrical parameter monitoring system 13 is used for monitoring voltage, synthetic field intensity, ion flow and the like. It is understood that, corresponding to the configuration environment simulation module and the power transmission simulation module, a person skilled in the art may configure the environmental parameter monitoring system 12 and the electrical parameter monitoring system 13 for acquiring the environmental parameters and the electrical parameters inside the fouling characteristic test experimental box 1 according to the types of the units configured by the environment simulation module and the power transmission simulation module.

As shown in fig. 2, the invention also provides a method for testing the fouling characteristics of the high-voltage power transmission facility, which comprises the following steps:

step 1, placing a sampling test piece 7 according to a test item of an electric power facility to be tested; the method specifically comprises the following steps: if the influence factors of the dirt accumulation characteristics of the surface material of the ground power facility are tested and evaluated, a sampling test piece 7 is placed in a sampling area 6 in the middle of the polar lead 2; if the influence factors of the pollution accumulation characteristics of the ground electric facilities of the end points of the electrode lead 2 and the middle sampling area 6 are tested and evaluated, the sampling test piece 7 is placed on the grounding electrode plate 3.

Step 2, setting environment simulation parameters, starting an environment simulation module and starting a monitoring module until the environment simulation parameters are reached in the pollution accumulation characteristic test experiment box 1; the method specifically comprises the following steps: according to the actual atmospheric environment to be simulated in the experiment, the operating parameters of the aerosol generator 8, the temperature and humidity regulator 9 and the fan 11 are set, and the aerosol concentration and the temperature and humidity in the pollution accumulation characteristic test experiment box 1 are monitored by using the parameter monitoring system 12, so that the aerosol concentration and the temperature and humidity are stable.

Step 3, setting power transmission simulation parameters and operation time, starting a power transmission simulation module, and entering step 4 after the operation time is reached; the method specifically comprises the following steps: the power supply 10 is started to supply power to the polar lead, the resultant field intensity and ion current density generated by the discharge of the polar lead 2 and the corona current are measured through the electrical parameter testing system 13, the power supply 10 supplies power stably for 0.5-12 hours, and the time depends on the dirt deposition speed, the aerosol concentration and the precision and resolution of the weighing instrument. As expressed by the following formula (1),

in the formula:

t is the accumulated pollution sampling time(s);

m is the minimum scale (g) of the weighing instrument;

v is aerosol deposition speed (m/s);

s is the area of the sampling sheet (m)²)；

C is aerosol concentration (g/m)³)。

Step 4, measuring the dirt accumulation amount of the sampling test piece 7 to obtain the dirt accumulation characteristic of the power transmission facility; the method specifically comprises the following steps: and analyzing the fouling characteristics of the high-voltage power transmission facility by calculating the fouling amount per unit area.

The invention has the beneficial effects that compared with the prior art, the invention provides the method and the device for testing the fouling characteristics of the high-voltage power transmission facility, namely, the experimental sample of the high-voltage direct-current or alternating-current power transmission facility is put into the fouling acceleration testing device of the polar wire and the grounding polar plate, the fouling characteristics and the influence factors of the experimental sample are examined, and the parameters such as aerosol concentration, temperature and humidity, gas flow velocity, airflow direction and the like in the fouling acceleration testing experimental device system can be adjusted. And the particle concentration of the aerosol generator is increased to be the multiple of the aerosol concentration in the atmospheric environment quality, so that the pollution accumulation of the high-voltage power transmission facility is accelerated, and the pollution accumulation characteristic of the high-voltage power transmission facility is rapidly checked.

The present applicant has described and illustrated embodiments of the present invention in detail with reference to the accompanying drawings, but it should be understood by those skilled in the art that the above embodiments are merely preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not for limiting the scope of the present invention, and on the contrary, any improvement or modification made based on the spirit of the present invention should fall within the scope of the present invention.