CN208188251U - Insulator electrical characteristic imitative experimental appliance - Google Patents
Insulator electrical characteristic imitative experimental appliance Download PDFInfo
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- CN208188251U CN208188251U CN201820314207.XU CN201820314207U CN208188251U CN 208188251 U CN208188251 U CN 208188251U CN 201820314207 U CN201820314207 U CN 201820314207U CN 208188251 U CN208188251 U CN 208188251U
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- electrical characteristic
- glass plate
- insulator
- experimental appliance
- imitative experimental
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Abstract
A kind of insulator electrical characteristic imitative experimental appliance, it include artificial fog chamber, flat plate model and test circuit in composition, the flat plate model includes insulating supporting platform, glass plate and electrode, the insulating supporting platform is placed in artificial fog chamber, the glass plate is lain on insulating supporting platform, the uniform brushing insulator contamination object in the upper surface of glass plate, respectively places an electrode on the insulator contamination object of glass board ends, and the electrode passes through the test circuit connection outside conducting wire and artificial fog chamber.The utility model utilizes the change procedure of the sub- ambient enviroment epidemic disaster of artificial fog chamber's analog insulation, utilize the sub- surface filth situation of flat plate model analog insulation, filthy conductivity is tested using test circuit, the conductivity of the pollution layer of heterogeneity under circumstances is measured using the device with can be convenient, the relationship between research pollution severity of insulators conductivity and pollution layer humidification is provided convenience condition.
Description
Technical field
The utility model relates to one kind for studying relationship between pollution severity of insulators conductivity and pollution layer humidification
Device, belong to the field of test technology.
Background technique
Insulator is exposed in normal working conditions in different types of pollution environment, airborne dust, particle
It can deposit to form pollution layer on its surface.Pollution layer is led by inert material and carbon, metal oxide and salt etc.
Electric compound composition.In the case where usually fine with being air-dried, surface pollution layer is nonconducting, once and in environment
With the presence of environment such as moisture, such as dew, greasy weather and drizzle, the conductivity of pollution layer just be will rise rapidly, and is formed conductive path, is made
At insulator arc-over even flashover.
The different insulator of pollution layer ingredient, insulation performance can show apparent difference, and flashover voltage is not quite similar.It is main
If because soluble organic fraction different in dunghill will lead to the insoluble matter that insulator pollution layer conductivity is different, in filthy ingredient
Matter will affect the attached water amount on pollution layer surface and the dampness process of insulator.
Concern is primarily with the electrical characteristics of contaminated insulator in previous research, but to surface filth conductivity and dirt
The research of variation relation between layer humidification is less, and there are also to be improved for the research of this aspect.Therefore one kind is designed just
It is very necessary in detecting surface filth conductivity with the experimental simulation device of ambient enviroment epidemic disaster variation relation.
Utility model content
The purpose of this utility model is that aiming at the disadvantages of the prior art, providing a kind of insulator electrical characteristic simulated experiment
Device, the relationship between research pollution severity of insulators conductivity and pollution layer humidification provide convenience.
Problem described in the utility model is realized with following technical proposals:
A kind of insulator electrical characteristic imitative experimental appliance, includes artificial fog chamber, flat plate model and test circuit in composition,
The flat plate model includes insulating supporting platform, glass plate and electrode, and the insulating supporting platform is placed in artificial fog chamber, the glass
Glass plate is lain on insulating supporting platform, the uniform brushing insulator contamination object in the upper surface of glass plate, in the insulation of glass board ends
An electrode is respectively placed on sub- dunghill, the electrode passes through the test circuit connection outside conducting wire and artificial fog chamber.
Above-mentioned insulator electrical characteristic imitative experimental appliance, the artificial fog chamber include ultrasonic humidifier, simulated experiment
Case and the humidifier tube being arranged in simulated experiment case, humidity sensor, heater, temperature sensor and baroceptor, it is described
Humidifier tube is connected by the fog outlet of pipeline and ultrasonic humidifier, the output end of the humidity sensor and baroceptor with
The controller of ultrasonic humidifier connects, and the controller of the temperature sensor and heater connects.
Above-mentioned insulator electrical characteristic imitative experimental appliance, the test circuit include test power supply, sampling resistor sum number
According to capture card, the electrode of glass plate one end is connect by sampling resistor with an output end for testing power supply, the glass plate other end
Electrode directly connect with the another output of test power supply, the voltage signal that the sampling resistor both ends export connects data and adopts
Truck.
Above-mentioned insulator electrical characteristic imitative experimental appliance, the test power supply include pressure regulator and transformer, the tune
The input of depressor terminates AC power source, the input terminal of output termination transformer, and the output end of the transformer is test power supply
Output end.
Above-mentioned insulator electrical characteristic imitative experimental appliance, the glass plate setting is multiple, they are on insulating supporting platform
It is evenly distributed, the dunghill of brushing heterogeneity on each glass plate.
Above-mentioned insulator electrical characteristic imitative experimental appliance, the humidifier tube is along the bottom plate of simulated experiment case and the week of top plate
Side arrangement, is equipped with equally distributed fog hole on the tube wall of humidifier tube.
Above-mentioned insulator electrical characteristic imitative experimental appliance, the simulated experiment case are positive cube shape, in its bottom plate
Fan is equipped on each angle.
Above-mentioned insulator electrical characteristic imitative experimental appliance, the heater setting is multiple, they are equal around insulating supporting platform
Even distribution.
The side wall of above-mentioned insulator electrical characteristic imitative experimental appliance, the simulated experiment case is equipped with transparent sight hole.
The utility model utilizes the change procedure of the sub- ambient enviroment epidemic disaster of artificial fog chamber's analog insulation, utilizes plate mould
Pattern intends pollution severity of insulators situation, is tested using test circuit filthy conductivity, be can be convenient using the device
Ground measures the conductivity of the pollution layer of heterogeneity under circumstances, adds for research pollution severity of insulators conductivity with pollution layer
Relationship between wet process is provided convenience condition.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of artificial fog chamber；
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Each label in figure are as follows: 1, ultrasonic humidifier, 2, simulated experiment case, 3, humidifier tube, 4, temperature sensor, 5, humidity
Sensor, 6, baroceptor, 7, transparent sight hole, 8, insulating supporting platform, 9, glass plate, 10, electrode, 11, fan, 12, plus
Hot device, T, pressure regulator, B, transformer, CJK, data collecting card, R, sampling resistor.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model includes artificial fog chamber, flat plate model and test circuit, wherein artificial
Fog chamber includes ultrasonic humidifier 1, simulated experiment case 2, humidifier tube, humidity sensor, heater, temperature sensor and air pressure transmission
Sensor；Flat plate model includes insulating supporting platform 8, glass plate 9 and electrode 10；Testing circuit includes test power supply (including pressure regulator T
With transformer B), sampling resistor R and data collecting card CJK.
1. simulated experiment box structure
Simulated experiment case 2 can be using plastic window frame as frame, and surrounding and top are wrapped up with transparent plastic cloth, and transparent plastic is formed
Transparent sight hole 7, not only it will be clear that the indoor situation that hazes of mist, but also will not to generate electric field to the pollution layer of flat plate model dry
It disturbs.The size of simulated experiment case is 1 × 1 × 1m3, it is furnished with 2 ultrasonic humidifiers, model SJC-J3000 is flat to ensure
Uniformly, two humidifiers are disposed as moderate fog-supplying amount in experimentation to the pollution layer humidification of Slab, and humidifier tube is uniformly distributed
A small fan 11 is respectively placed in the surrounding of simulated experiment case, and at each angle in lower section, fog is avoided to sink.Experiment will when carrying out
The glass plate 9 for being coated with different filthy ingredients is placed among simulated experiment case, is close to pollution layer surface and is placed electrode special, for counting
According to acquisition.
2. the measurement and control of humidity
The measurement of humidity uses wet-and-dry bulb hygrometer principle, and humidity sensor is mainly made of two thermistors, and one
Thermistor is for measuring air dry-bulb temperature, the wet-bulb temperature of another thermosensitive resistance measurement air.Two thermistors
After the processes temperature signal measured together with the output signal of baroceptor input circuit, so that it may calculate the opposite of air
Humidity.
After the relative humidity for obtaining air by the above method, a threshold value is set, experimenter can be reminded less than threshold value
Air inflow is increased to achieve the effect that adjust humidity.
3. the measurement and control of temperature
Environment temperature is measured using temperature sensor 4, a feed circuit is set, it is (high-power to connect a heater 12
Heating resistor), when the temperature of measurement and set temperature are inconsistent, the power by adjusting heater 12 adjusts temperature.
4. flat plate model
It is tested in simulated experiment case using glass Slab, the size of glass plate is 30 × 15cm, will be different inorganic
The soiling solution of salt component is uniformly brushed is tested on its surface.
5. the calculating of pollution layer conductivity
1) data acquire
Electrical conductivity of solution can be measured with special instrument, but there is presently no corresponding for pollution layer conductivity
Product, the present apparatus devises test circuit (see Fig. 1) using the voltage divider principle of series circuit thus, and data collecting card CJK is real-time
The voltage change at the both ends sampling resistor R is monitored and recorded, the corresponding pollution layer surface conductivity of different filthy ingredients is calculated with this.
2) calculating of conductivity
The resistance R of pollution layer between two electrodes can be obtained according to Ohm's law and relevant reduction formulaXAre as follows:
In formula: U is test supply voltage, and R is sampling resistor value, URFor the measurement voltage on R.Then pollution layer conductivity can root
It is calculated according to following equation:
In formula: ρXFor pollution layer resistivity, σXFor pollution layer conductivity, b, L are respectively the length and two electrode spacings of electrode.
Since the simulated experiment case can carry out the conductivity measurement of 8 groups of plate pollution layers simultaneously, therefore experiment at most may be used every time
To compare 8 groups of different filthy ingredients with the variation of the conductivity of humidification periods.
Claims (9)
1. a kind of insulator electrical characteristic imitative experimental appliance, characterized in that include artificial fog chamber, flat plate model and survey in composition
Circuit is tried, the flat plate model includes insulating supporting platform (8), glass plate (9) and electrode (10), and the insulating supporting platform (8) is put
It sets in artificial fog chamber, the glass plate (9) lies on insulating supporting platform (8), and the upper surface of glass plate (9) is uniformly brushed absolutely
Edge dunghill, respectively places an electrode (10) on the insulator contamination object at glass plate (9) both ends, and the electrode (10) passes through
Test circuit connection outside conducting wire and artificial fog chamber.
2. a kind of insulator electrical characteristic imitative experimental appliance according to claim 1, characterized in that the artificial fog chamber
Including ultrasonic humidifier (1), simulated experiment case (2) and humidifier tube (3), the humidity sensor being arranged in simulated experiment case (2)
Device (5), heater (12), temperature sensor (4) and baroceptor (6), the humidifier tube (3) are added by pipeline and ultrasonic wave
The fog outlet of wet device (1) connects, the output end and ultrasonic humidifier (1) of the humidity sensor (5) and baroceptor (6)
Controller connection, the temperature sensor (4) connect with the controller of heater (12).
3. a kind of insulator electrical characteristic imitative experimental appliance according to claim 1 or 2, characterized in that the test
Circuit includes that test power supply, sampling resistor (R) and data collecting card (CJK), the electrode (10) of glass plate (9) one end pass through sampling
Resistance (R) is connect with an output end of test power supply, and the electrode (10) of glass plate (9) other end is directly another with test power supply
The voltage signal of one output end connection, the sampling resistor both ends (R) output meets data collecting card (CJK).
4. a kind of insulator electrical characteristic imitative experimental appliance according to claim 3, characterized in that the test power supply
Including pressure regulator (T) and transformer (B), the input of the pressure regulator (T) terminates AC power source, output termination transformer (B)
Input terminal, the output end of the transformer (B) are the output end for testing power supply.
5. a kind of insulator electrical characteristic imitative experimental appliance according to claim 4, characterized in that the glass plate
(9) setting is multiple, they are evenly distributed on insulating supporting platform (8), the filth of brushing heterogeneity on each glass plate (9)
Object.
6. a kind of insulator electrical characteristic imitative experimental appliance according to claim 2, characterized in that the humidifier tube
(3) along the periphery of the bottom plate of simulated experiment case (2) and top plate arrange, on the tube wall of humidifier tube (3) be equipped with it is equally distributed go out
Mist hole.
7. a kind of insulator electrical characteristic imitative experimental appliance according to claim 6, characterized in that the simulated experiment
Case (2) is positive cube shape, and fan (11) are equipped on each angle of its bottom plate.
8. a kind of insulator electrical characteristic imitative experimental appliance according to claim 2, characterized in that the heater
(12) setting is multiple, they are uniformly distributed around insulating supporting platform (8).
9. a kind of insulator electrical characteristic imitative experimental appliance according to claim 8, characterized in that the simulated experiment
The side wall of case (2) is equipped with transparent sight hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820314207.XU CN208188251U (en) | 2018-03-07 | 2018-03-07 | Insulator electrical characteristic imitative experimental appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820314207.XU CN208188251U (en) | 2018-03-07 | 2018-03-07 | Insulator electrical characteristic imitative experimental appliance |
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| Publication Number | Publication Date |
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| CN208188251U true CN208188251U (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820314207.XU Expired - Fee Related CN208188251U (en) | 2018-03-07 | 2018-03-07 | Insulator electrical characteristic imitative experimental appliance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557439A (en) * | 2018-12-21 | 2019-04-02 | 广西电网有限责任公司电力科学研究院 | Paper oil insulation defect casing operating condition simulator |
| CN111595714A (en) * | 2020-05-29 | 2020-08-28 | 国网山东省电力公司电力科学研究院 | Test device and method for testing dirt adsorption performance of coating |
-
2018
- 2018-03-07 CN CN201820314207.XU patent/CN208188251U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557439A (en) * | 2018-12-21 | 2019-04-02 | 广西电网有限责任公司电力科学研究院 | Paper oil insulation defect casing operating condition simulator |
| CN111595714A (en) * | 2020-05-29 | 2020-08-28 | 国网山东省电力公司电力科学研究院 | Test device and method for testing dirt adsorption performance of coating |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 Termination date: 20200307 |
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| CF01 | Termination of patent right due to non-payment of annual fee |