CN104201586A - Rapid recovery method of composite outer insulation running performance of electric transmission and transformation equipment in hazy weather - Google Patents
Rapid recovery method of composite outer insulation running performance of electric transmission and transformation equipment in hazy weather Download PDFInfo
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- CN104201586A CN104201586A CN201410424843.4A CN201410424843A CN104201586A CN 104201586 A CN104201586 A CN 104201586A CN 201410424843 A CN201410424843 A CN 201410424843A CN 104201586 A CN104201586 A CN 104201586A
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- outer insulation
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- transforming equipment
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Abstract
The invention discloses a rapid recovery method of a composite outer insulation running performance of electric transmission and transformation equipment in a hazy weather. The method comprises the following steps of: (1) prejudging the time of duration of the hazy weather; (2) estimating hydrophobic nature and filthy degree of the composite outer insulation of the electric transmission and transformation equipment; (3) adopting low-temperature plasma discharge to deal with the composite outer insulation of the electric transmission and transformation equipment; (4) judging the improvement degree of the hydrophobic nature of the composite outer insulation of the electric transmission and transformation equipment. The rapid recovery method of the composite outer insulation running performance of the electric transmission and transformation equipment in the hazy weather can recover the running performance of the composite outer insulation of the electric transmission and transformation equipment rapidly, and is exact in judgment, simple to operate and suitable for large-range generalization and application.
Description
Technical field
The present invention relates to high voltage external insulation field, in particular for the method for the fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability under haze weather.
Background technology
For slowing down the main method of power transmission and transforming equipment pollution flashover accident, have at present: electroceramics or glass insulator surface-coated RTV antifouling flush paint and be aided with regular hand sweeping filthy, adopt silicon rubber compound insulator etc.Especially adopt silicon rubber compound insulator to become the important means of control insulation pollution flashover, in electric power system, application is very extensive.Main cause is to have migration of hydrophobicity as the high-temperature silicon disulfide rubber of composite insulator cluster parachute material, and the hydrophobicity of material itself can move to pollution layer surface, makes pollution layer surface also have hydrophobicity.Therefore, composite insulator also has stronger hydrophobicity staining rear surface, is not easy to occur the dissolving ionization of pollution layer, thereby can make insulator tolerance pollution flashover voltage greatly improve.
Yet, under natural atmosphere condition, composite insulator and other types insulator bearing equally Sulfur Dioxide In The Atmosphere, oxynitrides and graininess dust etc. the impact of atmospheric environment.Under some environment (as haze), under atmospheric environments such as low temperature, high humility and comparatively serious filthy deposition conditions, the migration of hydrophobicity of silastic material can be under some influence, cause migration rate to reduce and be all difficult to move to even for a long time the generation of the situations such as pollution layer surface, thereby reduced composite insulator tolerance pollution flashover voltage grade, affected the normal operation of electric power system.Particularly be accompanied by recent years the concentrated appearance of national large area haze weather, power transmission and transformation equipment outer insulation pollution flashover accident happens occasionally.
Based on above reason, the present invention proposes a kind of method for the fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability under haze weather, is intended to improve the anti-pollution flashover ability of composite outer insulation under haze weather.
Summary of the invention
In order to overcome existing shortcoming, the object of the present invention is to provide a kind of accurate, reliable method for the fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability under haze weather.
For achieving the above object, the technical solution adopted in the present invention is: a kind of method for the fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability under haze weather, it is characterized in that, and described determination methods comprises the following steps:
(1) whether the anticipation haze weather duration surpasses 48 hours, if surpass, enters step (2), otherwise disregards, and is not suitable for the processing of step (3);
(2) hydrophobicity, the filthy degree of assessment power transmission and transforming equipment composite outer insulation; This appraisal procedure is: adopt water spray staging to test existing composite outer insulation hydrophobicity, adopt filthy sampling towel to carry out on-the-spot pollution measurement;
(3) adopt discharge of plasma in low temperature to process power transmission and transforming equipment composite outer insulation;
(4) judgement power transmission and transforming equipment composite outer insulation hydrophobicity promotes degree; If power transmission and transforming equipment composite outer insulation hydrophobicity is greater than original existing power transmission and transforming equipment composite outer insulation hydrophobicity, composite outer insulation hydrophobicity runnability promotes complete; Otherwise, return to step (3).
Preferably, in described step (1), the haze weather duration can be made comprehensive anticipation in conjunction with meteorological department's weather forecast, the meteorological on-line monitoring system of Utilities Electric Co.; As the anticipation duration surpasses 2 days, applicable to described step (3), process.
Preferably, adopt water spray staging to test existing composite outer insulation hydrophobicity, adopt the special-purpose sampling of power transmission and transforming equipment towel to carry out on-the-spot pollution measurement.In described step (2), described step (2) can be divided into as follows step by step:
(2.1) if hydrophobicity is HC3～HC7 level, can carry out step (2.2); Otherwise being unwell to step (3) described in this patent processes;
(2.2) if the close 0.1mg/cm that is greater than of on-the-spot filthy ash
2, can carry out step (3); Otherwise being unwell to step (3) described in this patent processes.
Preferably, in described step (3), thereby the active material that discharge of plasma in low temperature produces is transported to by blowning installation the migration that compound inslation outer surface accelerates compound inslation macromolecule hydrophobicity material, thus fast quick-recovery compound inslation hydrophobicity performance.
Preferably, described power transmission and transforming equipment composite outer insulation can be composite bushing, composite insulator and the porcelain, the glass insulator that are coated with room temperature vulcanized silicone rubber; Described low temperature plasma can adopt jet plasma, radio frequency plasma, glow plasma form.
Preferably, plasma jet length is 0.5-5cm, and it is 2-20cm that plasma is processed spacing apart from composite outer insulation, and plasma treatment time is 3-30s.
Preferably, in described step (4), adopt water spray staging test compound external insulation hydrophobicity after Low Temperature Plasma Treating to promote degree.
The fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability of the present invention, accuracy of judgement, simple to operate, be applicable to promote the use of on a large scale.
Accompanying drawing explanation
Fig. 1 is that the present invention is for the method for the fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability under haze weather.
Embodiment
With specific embodiment, the present invention is described in detail for the method for the fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability under haze weather below.
Referring to Fig. 1, the present invention is directed to the method for the fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability under haze weather, comprise the following steps:
(1) whether the anticipation haze weather duration surpasses 48 hours, if surpass, enters step (2), otherwise disregards, and is not suitable for the processing of step (3).
In this step, in conjunction with meteorological department's weather forecast, meteorological comprehensive anticipation haze weather duration of on-line monitoring system of Utilities Electric Co., the present embodiment is by comprehensively carrying out an anticipation to certain haze weather in conjunction with meteorological department's weather forecast, the meteorological on-line monitoring system of Utilities Electric Co., and the anticipation haze weather duration will be 4 days.
(2) hydrophobicity, the filthy degree of assessment power transmission and transforming equipment composite outer insulation; The present invention tests existing composite outer insulation hydrophobicity by water spray staging, and adopts filthy sampling towel to carry out on-the-spot pollution measurement.Its concrete steps are as follows:
(2.1) adopt water spray staging to test existing composite outer insulation hydrophobicity, if the hydrophobicity composite outer insulation hydrophobicity of surveying is HC3～HC7 level, can carry out step (2.2); Otherwise disregard.
In this example, adopting water spray staging to test existing Hydrophobicity of Composite Insulator is HC4 level, wherein, water spray staging is proposed by Sweden transmission of electricity research institute (STRI) the earliest, adopt HC grade to characterize hydrophobicity state, wherein HC1～HC3 is hydrophobicity state, and HC4 is middle transition state, and HC5～HC7 is hydrophily.
(2.2) adopt filthy sampling towel to carry out on-the-spot pollution measurement; If the close 0.1mg/cm that is greater than of the filthy ash in the scene of measuring
2, can carry out step (3); Otherwise disregard.
The present embodiment, adopting the special-purpose sampling of power transmission and transforming equipment towel to record filthy ash close is 0.3mg/cm
2,, so the close 0.1mg/cm that is greater than of on-the-spot filthy ash
2, carry out step (3).
(3) adopt discharge of plasma in low temperature to process power transmission and transforming equipment composite outer insulation; The active material that described discharge of plasma in low temperature produces ((claims that again bubbling device is a kind of mechanical type Small Flow Control device by existing blowning installation, conventionally by glass ball float flowmeter or metal pipe float flow meter, pressure-reducing valve, Pressure gauge, constant flow valve, pipeline, joint, be formed by combining) be transported to the migration that compound inslation outer surface accelerates compound inslation macromolecule hydrophobicity material, thus fast quick-recovery compound inslation hydrophobicity performance.
Power transmission and transforming equipment composite outer insulation in the present invention can be composite bushing, composite insulator and the porcelain, the glass insulator that are coated with room temperature vulcanized silicone rubber.Low temperature plasma can adopt jet plasma, radio frequency plasma or glow plasma form.
As preferably, described plasma jet length is 0.5-5cm, and it is 2-20cm that plasma is processed spacing apart from composite outer insulation, and plasma treatment time is 3-30s., within the scope of it, composite outer insulation hydrophobicity after Low Temperature Plasma Treating promotes degree the best.
In the present embodiment, discharge of plasma in low temperature parameter is: plasma jet length is 2cm, and it is 6cm that plasma is processed spacing apart from composite outer insulation, and plasma treatment time is 10s.
(4) judgement power transmission and transforming equipment composite outer insulation hydrophobicity promotes degree; The present invention adopts water spray staging test compound external insulation hydrophobicity after Low Temperature Plasma Treating to promote degree, if power transmission and transforming equipment composite outer insulation hydrophobicity is greater than original power transmission and transforming equipment composite outer insulation hydrophobicity, composite outer insulation hydrophobicity runnability promotes complete; Otherwise, return to step (3).
The present invention passes through above-described embodiment, after Low Temperature Plasma Treating, Hydrophobicity of Composite Insulator is brought up to HC1 level, be greater than original existing power transmission and transforming equipment composite outer insulation hydrophobicity HC4 level, after said method is processed, Hydrophobicity of Composite Insulator runnability is significantly improved.
The fast quick-recovery of power transmission and transforming equipment composite outer insulation runnability of the present invention, accuracy of judgement, simple to operate, be applicable to promote the use of on a large scale.
Content described in this specification embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention is also and in those skilled in the art, according to the present invention, conceive the equivalent technologies means that can expect.
Claims (8)
1. a power transmission and transforming equipment composite outer insulation runnability quick recovery method under haze weather, is characterized in that, described determination methods comprises the following steps:
(1) whether the anticipation haze weather duration surpasses 48 hours, if surpass, enters step (2), otherwise disregards;
(2) hydrophobicity, the filthy degree of assessment power transmission and transforming equipment composite outer insulation; Adopt water spray staging to test existing composite outer insulation hydrophobicity, adopt filthy sampling towel to carry out on-the-spot pollution measurement;
(3) adopt discharge of plasma in low temperature to process power transmission and transforming equipment composite outer insulation;
(4) judgement power transmission and transforming equipment composite outer insulation hydrophobicity promotes degree; If power transmission and transforming equipment composite outer insulation hydrophobicity is greater than original existing power transmission and transforming equipment composite outer insulation hydrophobicity, composite outer insulation hydrophobicity runnability promotes complete; Otherwise, return to step (3).
2. power transmission and transforming equipment composite outer insulation runnability quick recovery method under haze weather according to claim 1, it is characterized in that: in described step (1), the haze weather duration can be made comprehensive anticipation in conjunction with meteorological department's weather forecast, the meteorological on-line monitoring system of Utilities Electric Co..
3. power transmission and transforming equipment composite outer insulation runnability quick recovery method under haze weather according to claim 1 and 2, is characterized in that: described step (2) can be divided into as follows step by step:
(2.1) adopt water spray staging to test existing composite outer insulation hydrophobicity, if the hydrophobicity composite outer insulation hydrophobicity of surveying is HC3～HC7 level, can carry out step (2.2); Otherwise disregard;
(2.2) adopt filthy sampling towel to carry out on-the-spot pollution measurement; If the close 0.1mg/cm that is greater than of the filthy ash in the scene of measuring
2, can carry out step (3); Otherwise disregard.
4. power transmission and transforming equipment composite outer insulation runnability quick recovery method under haze weather according to claim 1, it is characterized in that: in described step (3), the active material that described discharge of plasma in low temperature produces is transported to by air pump the migration that compound inslation outer surface accelerates compound inslation macromolecule hydrophobicity material, thus fast quick-recovery compound inslation hydrophobicity performance.
5. power transmission and transforming equipment composite outer insulation runnability quick recovery method under haze weather according to claim 1, is characterized in that: described power transmission and transforming equipment composite outer insulation is composite bushing, composite insulator and porcelain, the glass insulator that is coated with room temperature vulcanized silicone rubber.
6. power transmission and transforming equipment composite outer insulation runnability quick recovery method under haze weather according to claim 4, is characterized in that: described low temperature plasma adopts jet plasma, radio frequency plasma, glow plasma form.
7. according to power transmission and transforming equipment composite outer insulation runnability quick recovery method under the haze weather described in claim 4 or 6, it is characterized in that: described plasma jet length is 0.5-5cm, it is 2-20cm that plasma is processed spacing apart from composite outer insulation, and plasma treatment time is 3-30s.
8. according to power transmission and transforming equipment composite outer insulation runnability quick recovery method under the haze weather described in claim 4 or 6, it is characterized in that: in described step (4), adopt water spray staging test compound external insulation hydrophobicity after Low Temperature Plasma Treating to promote degree.
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Cited By (2)
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| CN110768144A (en) * | 2019-09-27 | 2020-02-07 | 衢州光明电力投资集团有限公司 | Method for rapidly recovering composite external insulation operation performance of power transmission and transformation equipment |
| CN112858851A (en) * | 2021-01-12 | 2021-05-28 | 国网江苏省电力有限公司电力科学研究院 | Composite insulator operation performance state evaluation method suitable for special industrial dust area |
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| CN104201586B (en) | 2016-02-10 |
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