CN203869989U - Detector for rank analysis of salt deposit density and hydrophobicity of insulators for power transmission and distribution - Google Patents
Detector for rank analysis of salt deposit density and hydrophobicity of insulators for power transmission and distribution Download PDFInfo
- Publication number
- CN203869989U CN203869989U CN201420139201.5U CN201420139201U CN203869989U CN 203869989 U CN203869989 U CN 203869989U CN 201420139201 U CN201420139201 U CN 201420139201U CN 203869989 U CN203869989 U CN 203869989U
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- display
- potentiometer
- triode
- power supply
- power transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 239000012212 insulator Substances 0.000 title abstract description 44
- 150000003839 salts Chemical class 0.000 title abstract description 22
- 238000004458 analytical method Methods 0.000 title abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims description 23
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 claims description 17
- 238000011109 contamination Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000001419 dependent effect Effects 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000007921 spray Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000002209 hydrophobic effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a detector for rank analysis, in particular to a detector for the rank analysis of the salt deposit density and the hydrophobicity of insulators for power transmission and distribution, and belongs to the detection devices for supervising insulation in the technical field of the electric transmission line. The detector comprises an LED, a light dependent resistor, a potentiometer, a display drive, a display, an SCM, a triode, a power supply and a switch, wherein the light dependent resistor and the potentiometer are connected in series; the series-connected branch is connected with the LED in parallel and is then connected with both ends of the power supply; the base electrode of the triode is connected with the common terminal of the light dependent resistor and the potentiometer; the emitting electrode of the triode is connected with the negative pole of the power supply; the collecting electrode of the triode is connected with the SCM; the SCM is connected with the display through the display drive; the switch, the SCM and the display drive are connected with the power supply. The detector has the advantages that no detaching or attaching is needed, so that the contamination adhered on the insulators to be tested can be prevented from dropping off from the insulators when the insulators are carried; the analysis accuracy of the salt deposit density and the hydrophobicity of the insulators is enhanced; the work intensity of the testers can be greatly reduced while the work efficiency is enhanced.
Description
Technical field
The utility model relates to a kind of grade analysis detecting device, and particularly the close hydrophobicity rank analyzing and testing of a kind of power transmission and distribution insulation alite device, belongs to transmission line of electricity technology insulation control pick-up unit.
Background technology
The close hydrophobic nature test of transmission line of electricity suspended insulator salt is the important content of the anti-pollution flashover of electrical network, is the method for testing of obtaining operation of power networks insulator dirt-proof parameter.Its surface of insulator of operation regular period, be subject to the impact of surrounding environment on it, insulator porcelain part composite insulator material surface, under self electric field action and suction-operated, insulator surface and ironware part can be adhered to filth, when environment is dirty, insulator surface can form the filth identical with dirty source.When insulator contamination forms when a certain amount of, can be accompanied by working voltage and humidity, at insulator surface, form current channel.For ensureing the safe operation of power network line, formulate the corresponding anti-pollution flashover precautionary measures, therefore, to test the close hydrophobic nature of transmission line of electricity suspended insulator salt, grasp method of testing and the result of the close hydrophobicity rank of salt (or saturated filthy degree), provide the new argument of the filthy grade classification of electrical network, with the close hydrophobic nature of salt, determine gradation for surface pollution, for anti-pollution flashover, formulate the precautionary measures.
At present, the test of the close hydrophobic nature of salt is mainly contained to two kinds, a kind of is that staff is by tested insulator atomized water spray, then adopt high definition camera to take pictures, photo is taken back to sensing chamber and by digital imaging processing software, carry out detection and the judgement of the close hydrophobicity rank of salt, the method is cumbersome, even can turn back back and forth and take pictures owing to taking pictures defective, increase staff's workload, and due to the error problem of taking pictures, the accuracy that impact detects; Another kind of mode is that tested insulator is taken and carried go back to sensing chamber and detect, not only increase staff's workload and working strength, also can in handling process, cause and adhere to coming off of dunghill, reduce the accuracy that the close hydrophobic nature of salt detects, reduce work efficiency.
Utility model content
According to above deficiency of the prior art, problem to be solved in the utility model is: provide a kind of without dislodging insulator, improve accuracy in detection, reduce the working strength of testing crew, the close hydrophobicity rank analyzing and testing of the power transmission and distribution of increasing work efficiency insulation alite device.
The utility model solves the technical scheme that its technical matters adopts:
The described close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite device, comprise light emitting diode, photoresistance, potentiometer, display driver, display, single-chip microcomputer, triode, power supply and switch, after the series arm of photoresistance and potentiometer is in parallel with light emitting diode, be connected to both ends of power, the base stage of triode connects the common port of photoresistance and potentiometer, and emitter connects power cathode, and collector connects single-chip microcomputer, single-chip microcomputer connects display by display driver, and switch, single-chip microcomputer and display driver are connected power supply.Switch connects positive source, is arranged between the connection branch road of positive source and display driver.
Described light emitting diode and photoresistance are separately positioned on the two ends on U-shaped groove top, and U-shaped groove bottom connects housing, and enclosure interior arranges potentiometer, display driver, display, single-chip microcomputer, triode VT1 and power supply V1.The described close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite device circuit is simple, selects general purpose board mounting circuit components and parts, selects the general purpose board of 6X5.4cm, reduce the power of detecting device, improve reliability, and reduce costs, reduce the usage quantity of electronic component as far as possible.Housing is set to flat, is convenient for carrying and uses.
Preferred further, display adopts 6 grade display lamps and a display screen, and grade display lamp and display screen are arranged on housing, is also provided with the switch that connects enclosure interior circuit on housing.Conveniently according to demonstration situation, process, grade display lamp shows hydrophobicity rank, and display screen shows that salt is close.
Preferred further, dry cell or accumulator for power acquisition.Battery is as small as possible, selects battery No. 7, reduces volume, is convenient for carrying.
Preferred further, triode adopts 2SC1815.The enlargement factor of triode 2SC1815 is approximately 150.
Preferred further, potentiometer Pg adopts 5K Ω potentiometer.The value of potentiometer is that the difference along with photoresistance regulates, the design's potentiometer reaches desirable state while being transferred to 1K Ω, when the transmission of electricity porcelain bottle insulators in photoelectric probe has the globule to move back angle, the mean value of potentiometer is 3.6K Ω, while moving back angle without the globule, the mean value of potentiometer is 1K Ω, and the refractive index of the globule is 1.34, the globule refractive index of transmission of electricity porcelain bottle insulators, select 5K Ω potentiometer, so that assembled, rear circuit is debugged.
The described close hydrophobicity rank analyzing detecting method of power transmission and distribution insulation alite, comprises the following steps:
Insulator water spray to be detected is formed to the globule, then the switch of close detector, the U-shaped groove of detecting device upper end is covered to water spray and form the globule, light emitting diode is luminous, the reception of light is carried out in photoresistance, the voltage at potentiometer two ends under the resistance of photoresistance and both end voltage and dividing potential drop effect is determined in photoresistance by light received after the globule, and then make triode by or conducting, then transmit signals to single-chip microcomputer, by single-chip microcomputer, carry out signal analysis and output, control display driver action simultaneously, carry out the demonstration of the close hydrophobicity rank of salt.
Insulator water spray to be detected is formed to electrode at insulator surface, then the switch of close detector, the U-shaped groove of detecting device upper end is covered to the formed globule of water spray, light emitting diode is luminous, the reception of light is carried out in photoresistance, the voltage at potentiometer two ends under the resistance of photoresistance and both end voltage and dividing potential drop effect is determined in photoresistance by light received after the globule, and then make triode by or conducting, then transmit signals to single-chip microcomputer, by single-chip microcomputer, carry out signal analysis and output, control display driver action simultaneously, carry out the demonstration of the close grade of salt.
After switch closure, lumination of light emitting diode, when water spray has after the globule, due to refraction effect successively occurring, enter the light of photoresistance seldom, the resistance of now photoresistance very large under the dividing potential drop effect of photoresistance the voltage at potentiometer two ends be less than 0.7V, triode is in cut-off state, display circuit is not reported to the police, and HC1-HC6 grade display lamp does not show.When water spray nothing is moved back angle, directly by the drop globule, there is not deviation in light, the resistance of photoresistance diminishes, the voltage at two ends diminishes thereupon, cause the voltage that get at potentiometer two ends to become large, when potentiometer both end voltage is greater than 0.7V, triode is in conducting state, the voltage at alarm module two ends is sharply elevated to, after the voltage signal that passes through triode that single-chip microcomputer receives, analyze, and then the resistance of definite photoresistance, finally determine receding angle, and show by HC1-HC6 grade display lamp, simultaneously can also basis by carrying out analysis and calculation certainty equivalents salt density (ESDD) value after the voltage signal of triode, by display screen, show.
The beneficial effect that the utility model has is:
The described close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite device is according to the anti-pollution flashover needs of electric system, the close hydrophobicity rank dedicated analysis of the special-purpose defilement and insulation alite of a kind of insulator detecting device of utility model development, it is the new method that substitutes the detection analysis of traditional insulator contamination sampling, adopt the close hydrophobicity rank dedicated analysis of insulator contamination salt detecting device, without seting out, can prevent that the tested insulator dunghill that insulator adheres in handling process from coming off, not only improve the accuracy of measuring the close hydrophobic nature of insulation alite, and can greatly reduce the working strength of testing crew, improved work efficiency.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is that light path of the present utility model is propagated schematic diagram;
Fig. 4 is the close detection theory diagram of salt of the present utility model;
Fig. 5 is that hydrophobic nature of the present utility model detects theory diagram;
Wherein, LED, light emitting diode; Rg, photoresistance; Pg, potentiometer; VT1, triode; V1, power supply; S, switch; 1, display driver; 2, display; 3, single-chip microcomputer; 4, U-shaped groove; 5, housing; 6, grade display lamp; 7, switch; 8, display screen.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As Figure 1-Figure 5, the close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite described in the utility model device, comprise LED, photoresistance Rg, potentiometer Pg, display driver 1, display 2, single-chip microcomputer 3, triode VT1, power supply V1 and switch S, after the series arm of photoresistance Rg and potentiometer Pg is in parallel with LED, be connected to power supply V1 two ends, the base stage of triode VT1 connects the common port of photoresistance Rg and potentiometer Pg, emitter connects power supply V1 negative pole, collector connects single-chip microcomputer 3, single-chip microcomputer 3 connects display 2 by display driver 1, switch S, single-chip microcomputer 3 is connected power supply V1 with display driver 1, LED and photoresistance Rg are separately positioned on the two ends on U-shaped groove 4 tops, U-shaped groove 4 bottoms connect housing 5, housing 5 inside arrange potentiometer Pg, display driver 1, display 2, single-chip microcomputer 3, triode VT1 and power supply V1.
Described U-shaped groove (U-shaped energy area coverage 2mm
2) globule of water spray is covered in U-shaped groove, light emitting diode and the photoresistance of both sides each side high brightness in two gaps opened in the left and right of U-shaped groove, ground, U-shaped gap size can not be too little, otherwise can produce diffraction, the fundamental purpose of the covering of two slit gaps is that the light by covering will be reflected, at this time only has light seldom by the slit area coverage between photoresistance, the resistance of photoresistance is very large, therefore due to dividing potential drop effect, the voltage at potentiometer two ends is very little, triode is in cut-off state, data do not show, when the insulator surface of power transmission line is long-pending while there is no the globule, light is propagated along solid line, the resistance of photoresistance becomes very little, therefore due to dividing potential drop effect, it is large that the voltage at potentiometer two ends becomes, triode is in conducting state, driving circuit (or HC1-HC6) data show.
Wherein, display 2 adopts 6 grade display lamps 6 and a display screen 8, and grade display lamp 6 and display screen 8 are arranged on housing 5, are also provided with the switch 7 that connects housing 5 internal circuits on housing 5.Power supply V1 adopts dry cell or accumulator, and triode VT1 adopts 2SC1815, and potentiometer Pg adopts 5K Ω potentiometer.
The described close hydrophobicity rank analyzing detecting method of power transmission and distribution insulation alite, comprises the following steps:
Insulator water spray to be detected is formed to the globule, then the switch of close detector, the U-shaped groove of detecting device upper end 4 is covered to water spray and form the globule, light emitting diode LED is luminous, photoresistance Rg carries out the reception of light, photoresistance Rg determines the voltage at potentiometer Pg two ends under the resistance of photoresistance and both end voltage and dividing potential drop effect by light received after the globule, and then make triode VT1 by or conducting, then transmit signals to single-chip microcomputer 3, by single-chip microcomputer 3, carry out signal analysis and output, control display driver 1 action simultaneously, carry out the demonstration of the close hydrophobicity rank of salt.
Wherein, during artificial pollution test pollution severity of insulators degree with salt close and grey close expression, it is naturally filthy that equivalent salt density is used for describing on-the-spot insulator.With reference to disc insulator (reference cap and pin insulator): for measuring and describe the insulator of on-the-spot filthy degree.IEC60815 regulation is standard cap and pin type suspension insulator (disk track 255mm, structure height 146mm, creep distance 300mm) for circuit traditionally; China's product type is that XP-70 and XP-160, LXP-70, LXP-160, XWP2-70 and XWP2-160 are also as with reference to insulator.
Sampling scope, i.e. creepage distance: along bee-line or bee-line sum between the gold utensil at two ends, insulator dielectric surface, the cement between the gold utensil of two ends and the surface of any other non-insulating material be not counted in climb from.
During sampling pollution test, salt close (SDD): be coated on the sodium chloride total amount on test product insulator dielectric surface and the ratio of insulating surface area, be expressed as uc/cm2(mg/cm2).
Sample filthy equivalent salt deposit density (ESDD): conductivity is equal to dissolves rear on-the-spot insulator dielectric surface the sodium chloride total amount of the filthy hydrotrope and the ratio of insulating surface area naturally, is expressed as uc/cm2(mg/cm2).
Insolubles density (NSDD): the ratio of insulating surface non-water soluble substance total amount and insulating surface area, is expressed as uc/cm2(mg/cm2).
On-the-spot filthy degree (SPS): with reference to maximum equivalent salt density and the ash close (filthy sampling must be carried out in the contamination later stage in season) of insulator surface contamination acquisition in continuous 3 to 5 years.
When insulator hydrophobicity rank analyzing and testing device uses, user puts on special gloves.Under the prerequisite of the structure after not changing former water spray, adopt simple mimic channel and U-shaped photo-electric conversion element realize hydrophobic nature judgement and show thus HC1-HC6 hydrophobicity rank.
HC1: the separative globule only, receding angle θ r >=80 ° of most of globule;
HC2: 50 °≤θ of the receding angle r<80 ° of most of globule;
HC3: the globule is no longer round, 20 °≤θ of the receding angle r50 ° of most of globule;
HC4: exist the separated globule and water band, moistening water band area is less than 2mm completely simultaneously
2, the total area is less than 90% of tested region area;
HC5: some complete moistening water band areas are greater than 2mm
2, the total area is less than 90% of tested region area;
HC6: out of service.
The utility model is simple in structure, portable, be suitable for ground and work high above the ground, adopt photoelectric sensing method, be applicable to the insulator of various models, on-the-spot hydrophobicity rank analyzing detecting method, solved because of porcelain vase specification difference, artificially manually cause partly irrelevant filthy being scattering in measuring appliance of ironware, cause described data inaccurate or excessive, cause the excessive problem of hydrophobic grade.
Claims (6)
1. the close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite device, it is characterized in that: comprise light emitting diode (LED), photoresistance (Rg), potentiometer (Pg), display driver (1), display (2), single-chip microcomputer (3), triode (VT1), power supply (V1) and switch (S), after the series arm of photoresistance (Rg) and potentiometer (Pg) is in parallel with light emitting diode (LED), be connected to power supply (V1) two ends, the base stage of triode (VT1) connects the common port of photoresistance (Rg) and potentiometer (Pg), emitter connects power supply (V1) negative pole, collector connects single-chip microcomputer (3), single-chip microcomputer (3) connects display (2) by display driver (1), switch (S), single-chip microcomputer (3) is connected power supply (V1) with display driver (1).
2. the close hydrophobicity rank analyzing and testing of power transmission and distribution according to claim 1 insulation alite device, it is characterized in that: described light emitting diode (LED) and photoresistance (Rg) are separately positioned on the two ends on U-shaped groove (4) top, U-shaped groove (4) bottom connects housing (5), housing (5) inside arranges potentiometer (Pg), display driver (1), display (2), single-chip microcomputer (3), triode (VT1) and power supply (V1).
3. the close hydrophobicity rank analyzing and testing of power transmission and distribution according to claim 1 insulation alite device, it is characterized in that: described display (2) adopts 6 grade display lamps (6) and a display screen (8), it is upper that grade display lamp (6) and display screen (8) are arranged on housing (5), is also provided with the switch (7) that connects housing (5) internal circuit on housing (5).
4. the close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite according to claim 1 device, is characterized in that: described power supply (V1) adopts dry cell or accumulator.
5. the close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite according to claim 1 device, is characterized in that: described triode (VT1) adopts 2SC1815.
6. the close hydrophobicity rank analyzing and testing of power transmission and distribution insulation alite according to claim 1 device, is characterized in that: described potentiometer (Pg) adopts 5K Ω potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139201.5U CN203869989U (en) | 2014-03-26 | 2014-03-26 | Detector for rank analysis of salt deposit density and hydrophobicity of insulators for power transmission and distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139201.5U CN203869989U (en) | 2014-03-26 | 2014-03-26 | Detector for rank analysis of salt deposit density and hydrophobicity of insulators for power transmission and distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203869989U true CN203869989U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139201.5U Expired - Lifetime CN203869989U (en) | 2014-03-26 | 2014-03-26 | Detector for rank analysis of salt deposit density and hydrophobicity of insulators for power transmission and distribution |
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| Country | Link |
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| CN (1) | CN203869989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900936A (en) * | 2014-03-26 | 2014-07-02 | 国家电网公司 | Insulator salt deposit density hydrophobicity grade tester |
-
2014
- 2014-03-26 CN CN201420139201.5U patent/CN203869989U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900936A (en) * | 2014-03-26 | 2014-07-02 | 国家电网公司 | Insulator salt deposit density hydrophobicity grade tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |